/* =====================================================
   ZTT-E Onboarding Guide Styles
   Theme: Neon Cyan/Blue (same as ZTT-E)
   Version: 2.0 - Final Polish
   ===================================================== */

/* =====================================================
   CSS Variables
   ===================================================== */
:root {
    /* Primary Colors - Deep Dark */
    --color-primary: #050a10;
    --color-primary-light: #0a1520;
    --color-primary-dark: #020508;
    
    /* Accent Colors - Neon Cyan */
    --color-accent: #00d4ff;
    --color-accent-light: #4de8ff;
    --color-accent-dark: #00a8cc;
    --color-accent-glow: rgba(0, 212, 255, 0.4);
    
    /* Secondary - Neon Green */
    --color-secondary: #00ff88;
    --color-secondary-dark: #00cc6a;
    
    /* Gradients */
    --gradient-neon: linear-gradient(135deg, #00d4ff 0%, #0088ff 50%, #00ff88 100%);
    --gradient-neon-subtle: linear-gradient(135deg, rgba(0, 212, 255, 0.15) 0%, rgba(0, 136, 255, 0.1) 50%, rgba(0, 255, 136, 0.05) 100%);
    --gradient-dark: linear-gradient(180deg, #050a10 0%, #0a1520 50%, #050a10 100%);
    
    /* Status Colors */
    --color-success: #00ff88;
    --color-warning: #ffc107;
    --color-error: #ff6b6b;
    
    /* Neutral Colors */
    --color-white: #ffffff;
    --color-gray-100: #f0f4f8;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    
    /* Text Colors */
    --color-text-primary: #ffffff;
    --color-text-secondary: rgba(255, 255, 255, 0.7);
    --color-text-muted: rgba(255, 255, 255, 0.45);
    
    /* Typography */
    --font-primary: 'Noto Sans JP', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-accent: 'Inter', monospace;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    --space-5xl: 8rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-glow: 0 0 60px var(--color-accent-glow);
    --shadow-glow-strong: 0 0 100px var(--color-accent-glow);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* =====================================================
   Reset & Base
   ===================================================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    scroll-padding-top: 80px;
    overflow-x: hidden;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-primary);
    color: var(--color-text-primary);
    line-height: 1.8;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    max-width: 100vw;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
    box-sizing: border-box;
}

.hidden {
    display: none !important;
}

/* =====================================================
   Japanese Text - Prevent Word Breaking
   ===================================================== */
body {
    word-break: keep-all;
    overflow-wrap: break-word;
    line-break: strict;
}

/* Specific elements that should never break */
.nowrap {
    white-space: nowrap;
}

h1, h2, h3, h4, h5, h6,
.hero-title,
.hero-subtitle,
.section-title,
.section-desc,
.subsection-title,
.prep-card-title,
.rule-title,
.timeline-title,
.cta-title,
.cta-desc,
.gate-title,
.gate-desc,
.callout-content h4,
.callout-content p,
.prep-card-desc,
.rule-desc,
.timeline-desc,
.checklist-text,
.note-content p,
.subsection-intro {
    word-break: keep-all;
    overflow-wrap: break-word;
    line-break: strict;
}

/* =====================================================
   Password Gate
   ===================================================== */
.password-gate {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.gate-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridMove 25s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

.glow-effect {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(ellipse, rgba(0, 212, 255, 0.08) 0%, transparent 60%);
    pointer-events: none;
}

.gate-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: var(--space-3xl);
    max-width: 420px;
    width: 100%;
}

.gate-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 50%;
    animation: iconPulse 3s ease infinite;
}

@keyframes iconPulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.4); }
    50% { box-shadow: 0 0 30px 10px rgba(0, 212, 255, 0.1); }
}

.gate-icon svg {
    width: 36px;
    height: 36px;
    color: var(--color-accent);
}

.gate-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    background: var(--gradient-neon);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gate-desc {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2xl);
    line-height: 1.9;
}

.password-form {
    margin-bottom: var(--space-2xl);
}

.input-wrapper {
    display: flex;
    gap: var(--space-sm);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    padding: var(--space-xs);
    transition: all var(--transition-base);
}

.input-wrapper:focus-within {
    border-color: rgba(0, 212, 255, 0.5);
    background: rgba(0, 212, 255, 0.03);
}

.input-wrapper input {
    flex: 1;
    background: transparent;
    border: none;
    padding: var(--space-md) var(--space-lg);
    font-family: var(--font-primary);
    font-size: 1rem;
    color: var(--color-text-primary);
    outline: none;
}

.input-wrapper input::placeholder {
    color: var(--color-text-muted);
}

.btn-submit {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-neon);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-submit:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-glow);
}

.btn-submit svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

.error-message {
    color: var(--color-error);
    font-size: 0.875rem;
    margin-top: var(--space-md);
    min-height: 1.5em;
}

.gate-footer {
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text-muted);
    font-size: 0.875rem;
    text-decoration: none;
    transition: all var(--transition-base);
}

.btn-back:hover {
    color: var(--color-text-primary);
}

.btn-back svg {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}

.btn-back:hover svg {
    transform: translateX(-4px);
}

/* =====================================================
   Navigation (統一フォーマット - 運用マニュアルと同じ)
   ===================================================== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(5, 10, 16, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    text-decoration: none;
}

.logo-text {
    font-family: var(--font-accent);
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--gradient-neon);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-divider {
    width: 1px;
    height: 20px;
    background: rgba(255, 255, 255, 0.2);
}

.logo-sub {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    letter-spacing: 0.05em;
}

.nav-links {
    display: flex;
    gap: var(--space-xl);
}

.nav-links a {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
    text-decoration: none;
}

.nav-links a:hover {
    color: var(--color-accent);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-secondary);
    transition: all var(--transition-base);
}

/* Mobile Navigation Menu */
@media (max-width: 768px) {
    .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(5, 10, 16, 0.98);
        backdrop-filter: blur(20px);
        padding: var(--space-lg);
        gap: var(--space-md);
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        display: none;
    }
    
    .nav-links.nav-open {
        display: flex;
    }
    
    .nav-links a {
        font-size: 1rem;
        padding: var(--space-sm) 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    
    .nav-links a:last-child {
        border-bottom: none;
    }
}

/* =====================================================
   Sections
   ===================================================== */
.section {
    padding: var(--space-5xl) 0;
    position: relative;
}

.section-alt {
    background: linear-gradient(180deg, var(--color-primary) 0%, #0a1520 50%, var(--color-primary) 100%);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-4xl);
}

.section-number {
    display: inline-block;
    font-family: var(--font-accent);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.3em;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 600;
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.section-desc {
    font-size: 1rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* =====================================================
   Hero Section (統一フォーマット - 運用マニュアルと同じ)
   ===================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-dark);
}

.hero-bg .grid-overlay {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-bg .glow-effect {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(ellipse, rgba(0, 212, 255, 0.12) 0%, transparent 60%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 0 var(--space-xl);
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.25);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-xl);
}

.hero-badge .badge-icon {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-badge .badge-icon svg {
    width: 16px;
    height: 16px;
    stroke: var(--color-accent);
}

.hero-badge .badge-text {
    font-family: var(--font-accent);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    text-transform: uppercase;
}

.hero-title {
    margin-bottom: var(--space-lg);
}

.hero-title .title-line {
    display: block;
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
}

.hero-title .title-accent {
    background: var(--gradient-neon);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.hero-subtitle strong {
    color: var(--color-accent);
    font-weight: 600;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.5; transform: scaleY(0.8); }
}

.scroll-text {
    font-size: 0.625rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

/* =====================================================
   Architecture Visual
   ===================================================== */
.architecture-visual {
    max-width: 900px;
    margin: 0 auto var(--space-3xl);
    padding: var(--space-3xl);
    background: rgba(0, 212, 255, 0.02);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: var(--radius-2xl);
}

.arch-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.arch-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xl);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-xl);
    min-width: 140px;
    transition: all var(--transition-base);
}

.arch-item:hover {
    border-color: rgba(0, 212, 255, 0.3);
    transform: translateY(-4px);
}

.arch-source {
    border-color: rgba(66, 133, 244, 0.3);
}

.arch-process {
    background: rgba(0, 212, 255, 0.05);
    border-color: rgba(0, 212, 255, 0.3);
}

.arch-output {
    border-color: rgba(0, 255, 136, 0.2);
}

.arch-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.arch-icon svg {
    width: 32px;
    height: 32px;
    color: var(--color-accent);
}

.arch-label {
    font-size: 0.875rem;
    font-weight: 600;
    white-space: nowrap;
}

.arch-desc {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    white-space: nowrap;
}

.arch-arrow {
    width: 32px;
    height: 32px;
    color: var(--color-text-muted);
}

.arch-arrow svg {
    width: 100%;
    height: 100%;
}

.arch-outputs {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

/* =====================================================
   Info Callout - SVG Icons
   ===================================================== */
.info-callout {
    display: flex;
    gap: var(--space-lg);
    padding: var(--space-xl);
    background: rgba(0, 212, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-xl);
    max-width: 700px;
    margin: 0 auto;
}

.info-callout-small {
    margin-top: var(--space-xl);
}

.callout-icon-svg {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
}

.callout-icon-svg svg {
    width: 100%;
    height: 100%;
    color: var(--color-accent);
}

.callout-content h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
    color: var(--color-accent);
}

.callout-content p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* =====================================================
   Subsections - SVG Icons
   ===================================================== */
.subsection {
    margin-bottom: var(--space-4xl);
}

.subsection-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.subsection-icon-svg {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.subsection-icon-svg svg {
    width: 100%;
    height: 100%;
    color: var(--color-accent);
}

.subsection-title {
    font-size: 1.375rem;
    font-weight: 600;
}

.subsection-intro {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2xl);
    line-height: 2;
}

/* =====================================================
   Prep Cards
   ===================================================== */
.prep-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.prep-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.prep-card:hover {
    border-color: rgba(0, 212, 255, 0.2);
    transform: translateY(-4px);
}

.prep-card-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: rgba(0, 212, 255, 0.03);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.prep-card-number {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-neon);
    color: var(--color-primary);
    font-family: var(--font-accent);
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 50%;
    flex-shrink: 0;
}

.prep-card-title {
    font-size: 1rem;
    font-weight: 600;
}

.prep-card-body {
    padding: var(--space-lg);
}

.prep-card-desc {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.8;
}

.prep-list {
    list-style: none;
    padding-left: 0;
}

.prep-list li {
    position: relative;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-sm);
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

.prep-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

/* =====================================================
   Channel List (for Receipt Channel Setup)
   ===================================================== */
.channel-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.channel-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-md);
    background: rgba(0, 212, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.channel-item:hover {
    background: rgba(0, 212, 255, 0.06);
    border-color: rgba(0, 212, 255, 0.2);
}

.channel-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 255, 0.1);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.channel-icon svg {
    width: 20px;
    height: 20px;
    stroke: var(--color-accent);
}

.channel-info strong {
    display: block;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 2px;
}

.channel-info p {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin: 0;
}

.note-box {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
    padding: var(--space-md);
    background: rgba(0, 255, 136, 0.05);
    border: 1px solid rgba(0, 255, 136, 0.15);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.note-box svg {
    width: 18px;
    height: 18px;
    stroke: var(--color-secondary);
    flex-shrink: 0;
    margin-top: 2px;
}

/* =====================================================
   Example Box
   ===================================================== */
.example-box {
    background: rgba(0, 0, 0, 0.3);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-top: var(--space-md);
}

.example-label {
    display: inline-block;
    font-family: var(--font-accent);
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    color: var(--color-secondary);
    background: rgba(0, 255, 136, 0.1);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-sm);
}

.example-box p {
    font-family: var(--font-accent);
    font-size: 0.875rem;
    color: var(--color-text-primary);
}

/* =====================================================
   Data Table
   ===================================================== */
.table-wrapper {
    overflow-x: auto;
    margin-bottom: var(--space-xl);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9375rem;
}

.data-table th,
.data-table td {
    padding: var(--space-md) var(--space-lg);
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    white-space: nowrap;
}

.data-table th {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    text-transform: uppercase;
    background: rgba(0, 0, 0, 0.2);
}

.data-table td {
    color: var(--color-text-secondary);
}

.data-table td strong {
    color: var(--color-text-primary);
    font-weight: 500;
}

.data-table tbody tr:hover {
    background: rgba(0, 212, 255, 0.02);
}

/* Allow description column to wrap */
.data-table td:nth-child(3) {
    white-space: normal;
    min-width: 200px;
}

/* =====================================================
   Badges
   ===================================================== */
.badge {
    display: inline-block;
    font-size: 0.6875rem;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.badge-required {
    background: rgba(0, 212, 255, 0.15);
    color: var(--color-accent);
}

.badge-optional {
    background: rgba(255, 255, 255, 0.08);
    color: var(--color-text-muted);
}

/* =====================================================
   Rules Grid
   ===================================================== */
.rules-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.rule-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.rule-header {
    padding: var(--space-lg);
    background: rgba(0, 212, 255, 0.03);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.rule-number {
    font-family: var(--font-accent);
    font-size: 0.625rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
    display: block;
}

.rule-title {
    font-size: 1rem;
    font-weight: 600;
}

.rule-body {
    padding: var(--space-lg);
}

.rule-desc {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    line-height: 1.8;
}

.rule-compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.rule-bad, .rule-good {
    padding: var(--space-md);
    border-radius: var(--radius-md);
}

.rule-bad {
    background: rgba(255, 107, 107, 0.05);
    border: 1px solid rgba(255, 107, 107, 0.15);
}

.rule-good {
    background: rgba(0, 255, 136, 0.05);
    border: 1px solid rgba(0, 255, 136, 0.15);
}

.rule-label {
    display: block;
    font-size: 0.6875rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    letter-spacing: 0.05em;
}

.rule-label-bad { color: var(--color-error); }
.rule-label-good { color: var(--color-success); }

.rule-bad p, .rule-good p {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
}

/* =====================================================
   Color Legend
   ===================================================== */
.color-legend {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.color-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.875rem;
}

.color-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    flex-shrink: 0;
}

.color-name {
    width: 60px;
    font-weight: 500;
    color: var(--color-text-primary);
    flex-shrink: 0;
}

.color-use {
    color: var(--color-text-secondary);
}

/* =====================================================
   Steps Mini
   ===================================================== */
.steps-mini {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.step-mini {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-md);
}

.step-mini-num {
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 212, 255, 0.15);
    color: var(--color-accent);
    font-family: var(--font-accent);
    font-size: 0.6875rem;
    font-weight: 600;
    border-radius: 50%;
    flex-shrink: 0;
}

.step-mini-text {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* =====================================================
   Info Box - SVG Icons
   ===================================================== */
.info-box {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: rgba(0, 212, 255, 0.05);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: var(--space-md);
}

.info-box-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.info-box-icon svg {
    width: 100%;
    height: 100%;
    color: var(--color-accent);
}

/* =====================================================
   Tags List
   ===================================================== */
.tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.tag {
    font-size: 0.8125rem;
    padding: var(--space-xs) var(--space-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    white-space: nowrap;
}

/* =====================================================
   Timeline
   ===================================================== */
.timeline {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 19px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, var(--color-accent), rgba(0, 212, 255, 0.1));
}

.timeline-item {
    display: flex;
    gap: var(--space-xl);
    padding-bottom: var(--space-2xl);
    position: relative;
}

.timeline-marker {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary);
    border: 2px solid var(--color-accent);
    border-radius: 50%;
    flex-shrink: 0;
    z-index: 1;
}

.marker-number {
    font-family: var(--font-accent);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-accent);
}

.timeline-marker-final {
    background: var(--gradient-neon);
    border: none;
}

.timeline-marker-final svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
}

.timeline-content {
    flex: 1;
    padding-top: var(--space-sm);
}

.timeline-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.timeline-list {
    list-style: none;
    padding-left: 0;
}

.timeline-list li {
    position: relative;
    padding-left: var(--space-lg);
    margin-bottom: var(--space-sm);
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
}

.timeline-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-accent);
}

.timeline-desc {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.timeline-item-final {
    padding-bottom: 0;
}

/* =====================================================
   Checklist - SVG Icons
   ===================================================== */
.checklist-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
    margin-bottom: var(--space-3xl);
}

.checklist-group {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
}

.checklist-group-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.checklist-group-icon-svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
}

.checklist-group-icon-svg svg {
    width: 100%;
    height: 100%;
    color: var(--color-accent);
}

.checklist {
    list-style: none;
    padding-left: 0;
}

.checklist-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
}

.checkbox {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    margin-top: 2px;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.checkbox:hover {
    border-color: var(--color-accent);
}

.checklist-text {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.checklist-note {
    display: flex;
    gap: var(--space-lg);
    padding: var(--space-xl);
    background: rgba(0, 255, 136, 0.03);
    border: 1px solid rgba(0, 255, 136, 0.15);
    border-radius: var(--radius-xl);
    max-width: 700px;
    margin: 0 auto;
}

.note-icon-svg {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.note-icon-svg svg {
    width: 100%;
    height: 100%;
    color: var(--color-secondary);
}

.note-content p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.note-content strong {
    color: var(--color-secondary);
}

/* =====================================================
   CTA Section
   ===================================================== */
.section-cta {
    background: linear-gradient(135deg, var(--color-accent-dark) 0%, var(--color-primary) 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.section-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.1) 0%, transparent 60%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(1.25rem, 3.5vw, 2rem);
    font-weight: 600;
    margin-bottom: var(--space-lg);
    word-break: keep-all;
    overflow-wrap: normal;
    white-space: nowrap;
}

@media (max-width: 600px) {
    .cta-title {
        white-space: normal;
    }
}

/* レスポンシブ改行制御 */
.sp-only {
    display: none;
}

@media (max-width: 600px) {
    .sp-only {
        display: inline;
    }
}

.cta-desc {
    font-size: 1rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2xl);
}

.cta-buttons {
    display: flex;
    gap: var(--space-lg);
    justify-content: center;
    flex-wrap: wrap;
}

/* =====================================================
   Buttons
   ===================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-primary);
    font-size: 0.9375rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
}

.btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.btn-primary {
    background: var(--gradient-neon);
    color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-strong);
}

.btn-secondary {
    background: transparent;
    color: var(--color-accent);
    border: 1px solid rgba(0, 212, 255, 0.4);
}

.btn-secondary:hover {
    background: rgba(0, 212, 255, 0.08);
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

/* =====================================================
   Google Account Setup - Comparison & Setup Sections
   ===================================================== */

/* 比較表セクション */
.comparison-section {
    margin-bottom: var(--space-2xl);
}

.comparison-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--color-text-primary);
}

.comparison-title svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
}

.comparison-table-wrapper {
    overflow-x: auto;
    margin-bottom: var(--space-md);
    -webkit-overflow-scrolling: touch;
}

.comparison-table {
    width: 100%;
    min-width: 500px;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.comparison-table th,
.comparison-table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.comparison-table th {
    background: rgba(0, 0, 0, 0.3);
    font-weight: 500;
    color: var(--color-text-secondary);
    vertical-align: bottom;
}

.comparison-table th:first-child {
    width: 180px;
}

.version-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: var(--radius-full);
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 4px;
}

.version-free {
    background: rgba(76, 175, 80, 0.2);
    color: #81c784;
}

.version-workspace {
    background: rgba(66, 133, 244, 0.2);
    color: #64b5f6;
}

.version-name {
    display: block;
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--color-text-muted);
}

.status-ok {
    color: var(--color-secondary);
    font-weight: 500;
}

.status-ok-large {
    font-size: 1rem;
}

.status-na {
    color: var(--color-text-muted);
}

.comparison-table .note {
    display: block;
    font-size: 0.6875rem;
    color: var(--color-text-muted);
    margin-top: 2px;
}

.comparison-table .row-highlight {
    background: rgba(0, 212, 255, 0.05);
}

.comparison-table .row-highlight td {
    border-bottom-color: rgba(0, 212, 255, 0.2);
}

.comparison-note {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
}

.comparison-note svg {
    width: 18px;
    height: 18px;
    color: var(--color-accent);
    flex-shrink: 0;
    margin-top: 2px;
}

.comparison-note p {
    margin: 0;
    line-height: 1.6;
}

/* セットアップセクション */
.setup-section {
    margin-top: var(--space-2xl);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.setup-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.setup-badge {
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.setup-badge-free {
    background: rgba(76, 175, 80, 0.2);
    color: #81c784;
    border: 1px solid rgba(76, 175, 80, 0.3);
}

.setup-badge-workspace {
    background: rgba(66, 133, 244, 0.2);
    color: #64b5f6;
    border: 1px solid rgba(66, 133, 244, 0.3);
}

.setup-title {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
}

.setup-content {
    padding: var(--space-xl);
}

.setup-subtitle {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.setup-icon {
    font-size: 1.25rem;
}

.setup-icon-svg {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
}

.setup-icon-svg svg {
    width: 20px;
    height: 20px;
    stroke: var(--color-accent);
}

.setup-desc {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

.setup-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.setup-step {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-md);
}

.setup-step-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--color-accent);
    color: var(--color-primary);
    font-size: 0.8125rem;
    font-weight: 700;
    border-radius: 50%;
    flex-shrink: 0;
}

.setup-step-content {
    flex: 1;
}

.setup-step-content strong {
    display: block;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 4px;
}

.setup-step-content p {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.5;
}

.setup-step-content code {
    display: inline-block;
    padding: 2px 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    font-family: var(--font-accent);
    font-size: 0.8125rem;
}

.setup-note {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

.example-box-small {
    margin-top: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
}

.example-box-small p {
    font-size: 0.75rem;
    font-family: var(--font-accent);
}

.external-link {
    color: var(--color-accent);
    text-decoration: none;
}

.external-link:hover {
    text-decoration: underline;
}

/* セットアップオプション */
.setup-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

.setup-option {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.option-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.option-badge {
    padding: 4px 10px;
    background: rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-full);
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--color-accent);
}

.option-badge-advanced {
    background: rgba(156, 39, 176, 0.15);
    color: #ce93d8;
}

.option-header h5 {
    font-size: 0.9375rem;
    font-weight: 600;
    margin: 0;
    color: var(--color-text-primary);
}

.option-body {
    padding: var(--space-md);
}

.option-body p {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    margin: 0 0 var(--space-sm) 0;
    line-height: 1.5;
}

.option-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.option-list li {
    position: relative;
    padding-left: var(--space-lg);
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
}

.option-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-secondary);
    font-weight: bold;
}

.option-note {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-style: italic;
    margin-top: var(--space-sm) !important;
}

/* Workspace管理者向け注意 */
.workspace-admin-note {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-xl);
    padding: var(--space-lg);
    background: rgba(255, 193, 7, 0.05);
    border: 1px solid rgba(255, 193, 7, 0.2);
    border-radius: var(--radius-lg);
}

.admin-note-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 193, 7, 0.15);
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.admin-note-icon svg {
    width: 20px;
    height: 20px;
    color: var(--color-warning);
}

.admin-note-content h5 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-warning);
    margin: 0 0 var(--space-sm) 0;
}

.admin-note-content p {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    margin: 0 0 var(--space-sm) 0;
}

.admin-note-content ul {
    list-style: disc;
    padding-left: var(--space-lg);
    margin: 0;
}

.admin-note-content li {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
}

/* 権限情報 */
.permissions-info {
    margin-top: var(--space-2xl);
}

.permissions-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--color-text-primary);
}

.permissions-title svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
}

.permissions-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.permissions-table {
    width: 100%;
    min-width: 450px;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.permissions-table th,
.permissions-table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.permissions-table th {
    background: rgba(0, 0, 0, 0.3);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
}

.permissions-table .row-highlight {
    background: rgba(0, 255, 136, 0.05);
}

.permissions-table .row-highlight td {
    border-bottom-color: rgba(0, 255, 136, 0.2);
}

.perm-ok {
    color: var(--color-secondary);
    font-weight: 600;
}

.perm-ng {
    color: var(--color-error);
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .setup-options {
        grid-template-columns: 1fr;
    }
    
    .workspace-admin-note {
        flex-direction: column;
    }
    
    .admin-note-icon {
        align-self: flex-start;
    }
}

@media (max-width: 480px) {
    .setup-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }
    
    .setup-title {
        font-size: 1rem;
    }
    
    .setup-content {
        padding: var(--space-md);
    }
    
    .setup-step {
        padding: var(--space-sm);
    }
    
    .comparison-table th:first-child {
        width: 120px;
    }
}

/* =====================================================
   How-to Box (SlackユーザーID取得など)
   ===================================================== */
.how-to-box {
    margin-top: var(--space-xl);
    background: rgba(0, 212, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.how-to-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: rgba(0, 212, 255, 0.05);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.how-to-header h4 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.how-to-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-md);
}

.how-to-icon svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
}

.how-to-steps {
    padding: var(--space-lg);
}

.how-to-step {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-md) 0;
}

.how-to-step:not(:last-child) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.how-to-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--color-accent);
    color: var(--color-primary);
    font-size: 0.8125rem;
    font-weight: 700;
    border-radius: 50%;
    flex-shrink: 0;
}

.how-to-content {
    flex: 1;
}

.how-to-content strong {
    display: block;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 4px;
}

.how-to-content p {
    font-size: 0.8125rem;
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.5;
}

.how-to-content code {
    display: inline-block;
    padding: 2px 8px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: var(--radius-sm);
    font-family: var(--font-accent);
    font-size: 0.8125rem;
    color: var(--color-accent);
}

.how-to-warning {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: rgba(255, 193, 7, 0.08);
    border-top: 1px solid rgba(255, 193, 7, 0.2);
    font-size: 0.8125rem;
    color: var(--color-warning);
}

.how-to-warning svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    margin-top: 2px;
}

.how-to-warning strong {
    color: var(--color-warning);
}

/* =====================================================
   Color Table (Detailed)
   ===================================================== */
.rule-card-wide {
    grid-column: 1 / -1;
}

.color-table-wrapper {
    overflow-x: auto;
    margin-top: var(--space-md);
}

.color-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.color-table th,
.color-table td {
    padding: var(--space-sm) var(--space-md);
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    white-space: nowrap;
}

.color-table th {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
}

.color-table td:first-child {
    width: 40px;
}

.color-row-highlight {
    background: rgba(0, 212, 255, 0.03);
}

.color-row-highlight td {
    border-bottom-color: rgba(0, 212, 255, 0.1);
}

.badge-inline {
    display: inline-block;
    padding: 2px 8px;
    font-size: 0.6875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
}

.badge-gray {
    background: rgba(97, 97, 97, 0.3);
    color: #9e9e9e;
}

.color-dot-small {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    vertical-align: middle;
    margin-right: 4px;
}

/* =====================================================
   Expense Examples Section
   ===================================================== */
.expense-examples {
    margin-top: var(--space-3xl);
    padding-top: var(--space-2xl);
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.examples-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-xl);
    color: var(--color-text-primary);
}

.examples-title svg {
    width: 24px;
    height: 24px;
    color: var(--color-accent);
}

.example-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.example-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.example-card:hover {
    border-color: rgba(0, 212, 255, 0.2);
    transform: translateY(-2px);
}

.example-card-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.example-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.example-card-header h5 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
}

.example-card-body {
    padding: var(--space-lg);
}

.example-field {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-xs) 0;
    font-size: 0.8125rem;
}

.example-field:not(:last-child) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    padding-bottom: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.field-label {
    flex-shrink: 0;
    width: 60px;
    color: var(--color-text-muted);
    font-weight: 500;
}

.field-value {
    color: var(--color-text-secondary);
}

.example-card-tip {
    padding: var(--space-md) var(--space-lg);
    background: rgba(0, 212, 255, 0.05);
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.example-card-tip strong {
    color: var(--color-accent);
}

/* =====================================================
   Logic Explanation (会議費/交際費判定)
   ===================================================== */
.logic-explanation {
    margin-top: var(--space-xl);
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
}

.logic-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    color: var(--color-text-primary);
}

.logic-title svg {
    width: 20px;
    height: 20px;
    color: var(--color-accent);
}

.logic-flow {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.logic-step {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-md);
}

.logic-condition {
    flex: 1;
}

.logic-label {
    display: inline-block;
    padding: 2px 8px;
    background: rgba(0, 212, 255, 0.15);
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 4px;
}

.logic-condition p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.logic-condition strong {
    color: var(--color-text-primary);
}

.logic-arrow {
    color: var(--color-text-muted);
    font-size: 1.25rem;
}

.logic-result {
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 600;
    white-space: nowrap;
}

.logic-result-koufei {
    background: rgba(255, 152, 0, 0.15);
    color: #ffb74d;
    border: 1px solid rgba(255, 152, 0, 0.3);
}

.logic-result-kaigi {
    background: rgba(0, 255, 136, 0.1);
    color: var(--color-secondary);
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.logic-note {
    margin-top: var(--space-md);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-style: italic;
}

@media (max-width: 600px) {
    .logic-step {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }
    
    .logic-arrow {
        transform: rotate(90deg);
        align-self: center;
    }
}

/* =====================================================
   Footer
   ===================================================== */
.footer {
    background: var(--color-primary-dark);
    padding: var(--space-2xl) 0;
    text-align: center;
}

.footer-nav {
    margin-bottom: var(--space-xl);
}

.footer-back-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    text-decoration: none;
    transition: all var(--transition-base);
}

.footer-back-link:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: rgba(0, 212, 255, 0.3);
    color: var(--color-accent);
}

.footer-back-link svg {
    width: 16px;
    height: 16px;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-copy {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.footer-tagline {
    font-family: var(--font-accent);
    font-size: 0.625rem;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    text-transform: uppercase;
}

/* =====================================================
   Japanese Text Handling - 改行制御
   ===================================================== */
body {
    word-break: normal;
    overflow-wrap: break-word;
    line-break: strict;
}

/* 日本語テキストの改行を適切に */
h1, h2, h3, h4, h5, h6,
.section-title,
.subsection-title,
.prep-card-title,
.rule-title,
.timeline-title,
.example-card-header h5,
.checklist-group-title {
    word-break: keep-all;
    overflow-wrap: break-word;
}

p, li, td, th,
.prep-card-desc,
.rule-desc,
.callout-content p,
.example-field {
    word-break: normal;
    overflow-wrap: break-word;
    line-height: 1.8;
}

/* nowrapクラスは維持 */
.nowrap {
    white-space: nowrap;
}

/* =====================================================
   Responsive - タブレット (768px以下)
   ===================================================== */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--space-lg);
    }
    
    .section {
        padding: var(--space-3xl) 0;
    }
    
    .section-header {
        margin-bottom: var(--space-xl);
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero {
        min-height: 80vh;
    }
    
    .hero-title .title-line {
        font-size: 2rem;
    }
    
    .arch-flow {
        flex-direction: column;
    }
    
    .arch-arrow {
        transform: rotate(90deg);
    }
    
    .arch-outputs {
        flex-direction: row;
        gap: var(--space-md);
    }
    
    .arch-item {
        min-width: 100px;
    }
    
    /* ルールカード */
    .rules-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .rule-card-wide {
        grid-column: 1;
    }
    
    .rule-compare {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    /* 準備カード */
    .prep-cards {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .prep-card {
        padding: var(--space-lg);
    }
    
    /* テーブル対応 */
    .table-wrapper {
        margin: 0 calc(-1 * var(--space-lg));
        padding: 0 var(--space-lg);
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .data-table {
        min-width: 500px;
    }
    
    .data-table th,
    .data-table td {
        padding: var(--space-sm) var(--space-md);
        font-size: 0.8125rem;
    }
    
    /* 色テーブル */
    .color-table-wrapper {
        margin: var(--space-md) calc(-1 * var(--space-md));
        padding: 0 var(--space-md);
    }
    
    .color-table {
        min-width: 400px;
    }
    
    /* 経費例カード */
    .example-cards {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .example-card-body {
        padding: var(--space-md);
    }
    
    /* タイムライン */
    .timeline::before {
        left: 15px;
    }
    
    .timeline-marker {
        width: 32px;
        height: 32px;
    }
    
    .timeline-item {
        gap: var(--space-md);
    }
    
    .timeline-content {
        padding: var(--space-md);
    }
    
    /* チェックリスト */
    .checklist-container {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    /* CTA */
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
    }
    
    /* How-to ボックス */
    .how-to-step {
        padding: var(--space-sm) 0;
    }
    
    .how-to-content p {
        font-size: 0.75rem;
    }
    
    /* 判定ロジック */
    .logic-flow {
        gap: var(--space-sm);
    }
    
    .logic-step {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-xs);
        padding: var(--space-sm);
    }
    
    .logic-arrow {
        transform: rotate(90deg);
        align-self: center;
        font-size: 1rem;
    }
    
    .logic-result {
        align-self: flex-end;
    }
}

/* =====================================================
   Responsive - スマホ (480px以下)
   ===================================================== */
@media (max-width: 480px) {
    :root {
        --space-lg: 1rem;
        --space-xl: 1.5rem;
        --space-2xl: 2rem;
        --space-3xl: 2.5rem;
        --space-4xl: 3rem;
    }
    
    html, body {
        max-width: 100%;
        overflow-x: hidden;
    }
    
    .container {
        padding: 0 var(--space-md);
        max-width: 100%;
        box-sizing: border-box;
    }
    
    * {
        max-width: 100%;
        box-sizing: border-box;
    }
    
    img, video, iframe, canvas, svg {
        max-width: 100%;
        height: auto;
    }
    
    .section {
        padding: var(--space-2xl) 0;
    }
    
    .section-number {
        font-size: 0.625rem;
    }
    
    .section-title {
        font-size: 1.25rem;
    }
    
    .section-desc {
        font-size: 0.875rem;
    }
    
    .hero-title .title-line {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 0.9375rem;
    }
    
    /* ナビゲーション */
    .nav-container {
        height: 60px;
        padding: 0 var(--space-md);
    }
    
    .nav-logo {
        gap: var(--space-sm);
    }
    
    .logo-text {
        font-size: 1.125rem;
    }
    
    .logo-divider {
        height: 16px;
    }
    
    .logo-sub {
        font-size: 0.6875rem;
    }
    
    .scroll-indicator {
        bottom: 20px;
    }
    
    .scroll-line {
        height: 24px;
    }
    
    /* サブセクション */
    .subsection {
        margin-top: var(--space-xl);
    }
    
    .subsection-title {
        font-size: 1rem;
    }
    
    .subsection-intro {
        font-size: 0.875rem;
    }
    
    /* カード */
    .prep-card {
        padding: var(--space-md);
    }
    
    .prep-card-title {
        font-size: 0.9375rem;
    }
    
    .prep-card-desc {
        font-size: 0.8125rem;
    }
    
    .prep-card-number {
        width: 24px;
        height: 24px;
        font-size: 0.75rem;
    }
    
    /* ルールカード */
    .rule-card {
        padding: var(--space-md);
    }
    
    .rule-number {
        font-size: 0.625rem;
    }
    
    .rule-title {
        font-size: 0.9375rem;
    }
    
    /* 例ボックス */
    .example-box {
        padding: var(--space-sm) var(--space-md);
    }
    
    .example-box p {
        font-size: 0.8125rem;
    }
    
    /* アーキテクチャ */
    .arch-item {
        padding: var(--space-md);
        min-width: 80px;
    }
    
    .arch-icon {
        width: 40px;
        height: 40px;
    }
    
    .arch-icon svg {
        width: 20px;
        height: 20px;
    }
    
    .arch-label {
        font-size: 0.75rem;
    }
    
    .arch-desc {
        font-size: 0.625rem;
    }
    
    /* How-to */
    .how-to-header {
        padding: var(--space-md);
    }
    
    .how-to-header h4 {
        font-size: 0.9375rem;
    }
    
    .how-to-steps {
        padding: var(--space-md);
    }
    
    .how-to-num {
        width: 24px;
        height: 24px;
        font-size: 0.75rem;
    }
    
    .how-to-content strong {
        font-size: 0.875rem;
    }
    
    /* 経費例 */
    .expense-examples {
        margin-top: var(--space-xl);
        padding-top: var(--space-lg);
    }
    
    .examples-title {
        font-size: 1rem;
    }
    
    .example-card-header {
        padding: var(--space-sm) var(--space-md);
    }
    
    .example-card-icon {
        width: 32px;
        height: 32px;
        font-size: 1rem;
    }
    
    .example-card-header h5 {
        font-size: 0.875rem;
    }
    
    .field-label {
        width: 50px;
        font-size: 0.6875rem;
    }
    
    .field-value {
        font-size: 0.75rem;
    }
    
    .example-card-tip {
        padding: var(--space-sm) var(--space-md);
        font-size: 0.6875rem;
    }
    
    /* タイムライン */
    .timeline-title {
        font-size: 0.9375rem;
    }
    
    .timeline-list li {
        font-size: 0.8125rem;
    }
    
    /* チェックリスト */
    .checklist-group {
        padding: var(--space-md);
    }
    
    .checklist-group-title {
        font-size: 0.9375rem;
    }
    
    .checklist-text {
        font-size: 0.8125rem;
    }
    
    .checkbox {
        width: 18px;
        height: 18px;
    }
    
    /* 判定ロジック */
    .logic-explanation {
        padding: var(--space-md);
    }
    
    .logic-title {
        font-size: 0.9375rem;
    }
    
    .logic-condition p {
        font-size: 0.8125rem;
    }
    
    .logic-result {
        font-size: 0.75rem;
        padding: 4px 8px;
    }
    
    /* CTA */
    .cta-title {
        font-size: 1.25rem;
    }
    
    .cta-desc {
        font-size: 0.875rem;
    }
    
    /* フッター */
    .footer {
        padding: var(--space-xl) 0;
    }
    
    .footer-back-link {
        font-size: 0.8125rem;
        padding: var(--space-xs) var(--space-md);
    }
    
    /* パスワードゲート */
    .gate-title {
        font-size: 1.25rem;
    }
    
    .gate-desc {
        font-size: 0.875rem;
    }
    
    .password-form input {
        font-size: 1rem;
    }
}

/* =====================================================
   Form CTA Section (初期設定フォームへの誘導)
   ===================================================== */
.section-form-cta {
    background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-primary-light) 50%, var(--color-primary) 100%);
    padding: var(--space-3xl) 0;
}

.form-cta-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: var(--space-2xl);
    background: rgba(0, 212, 255, 0.05);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(0, 212, 255, 0.2);
}

.form-cta-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    background: var(--gradient-neon-subtle);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid rgba(0, 212, 255, 0.3);
}

.form-cta-icon svg {
    width: 40px;
    height: 40px;
    stroke: var(--color-accent);
}

.form-cta-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-md);
}

.form-cta-desc {
    font-size: 1rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-xl);
}

.btn-form-cta {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--gradient-neon);
    color: var(--color-primary);
    font-size: 1.125rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.btn-form-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

.btn-form-cta svg {
    width: 24px;
    height: 24px;
}

.form-cta-note {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-top: var(--space-lg);
}

/* ナビゲーションのフォームリンク */
.nav-link-form {
    background: rgba(0, 212, 255, 0.15);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-md);
    border: 1px solid rgba(0, 212, 255, 0.3);
    font-weight: 500;
}

.nav-link-form:hover {
    background: rgba(0, 212, 255, 0.25);
    border-color: rgba(0, 212, 255, 0.5);
}

/* ナビゲーションのハイライトリンク */
.nav-link-highlight {
    background: var(--gradient-neon);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
}

/* モバイル対応 */
@media (max-width: 768px) {
    .form-cta-content {
        padding: var(--space-xl);
    }
    
    .form-cta-title {
        font-size: 1.5rem;
    }
    
    .form-cta-icon {
        width: 60px;
        height: 60px;
    }
    
    .form-cta-icon svg {
        width: 30px;
        height: 30px;
    }
    
    .btn-form-cta {
        width: 100%;
        justify-content: center;
    }
}

/* =====================================================
   Quick Start Section - 2ステップで完了
   ===================================================== */

.section-highlight {
    background: linear-gradient(180deg, 
        rgba(0, 212, 255, 0.08) 0%, 
        rgba(0, 136, 255, 0.05) 50%, 
        transparent 100%);
    border-top: 1px solid rgba(0, 212, 255, 0.2);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.quickstart-flow {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    margin-top: var(--space-2xl);
}

.quickstart-step {
    display: flex;
    gap: var(--space-xl);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    width: 100%;
    max-width: 700px;
    transition: all var(--transition-normal);
}

.quickstart-step:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(0, 212, 255, 0.4);
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(0, 212, 255, 0.1);
}

.quickstart-step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-neon);
    border-radius: 50%;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
}

.quickstart-step-content {
    flex: 1;
}

.quickstart-step-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--space-sm);
}

.quickstart-step-desc {
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.quickstart-step-list {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--space-lg);
}

.quickstart-step-list li {
    position: relative;
    padding-left: 1.5rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
}

.quickstart-step-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-accent);
    font-weight: 600;
}

.quickstart-step-time {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

.quickstart-step-time svg {
    width: 16px;
    height: 16px;
    stroke: var(--color-accent);
}

.btn-quickstart-action {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--gradient-neon);
    color: var(--color-primary);
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.3);
}

.btn-quickstart-action:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 212, 255, 0.5);
}

.btn-quickstart-action svg {
    width: 20px;
    height: 20px;
}

.btn-quickstart-secondary {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: transparent;
    color: var(--color-accent);
    font-weight: 500;
    font-size: 0.9375rem;
    border: 1px solid rgba(0, 212, 255, 0.4);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all var(--transition-normal);
}

.btn-quickstart-secondary:hover {
    background: rgba(0, 212, 255, 0.1);
    border-color: rgba(0, 212, 255, 0.6);
}

.btn-quickstart-secondary svg {
    width: 18px;
    height: 18px;
}

/* Arrow between steps */
.quickstart-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg) 0;
}

.quickstart-arrow svg {
    width: 32px;
    height: 32px;
    stroke: var(--color-accent);
    opacity: 0.6;
    animation: bounce-down 2s ease-in-out infinite;
}

@keyframes bounce-down {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

/* Share box */
.quickstart-share-box {
    background: rgba(0, 212, 255, 0.08);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.quickstart-share-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-xs);
}

.quickstart-share-email {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-sm);
}

.quickstart-share-email code {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-accent);
    background: transparent;
    padding: 0;
}

.btn-copy {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    background: rgba(0, 212, 255, 0.15);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: var(--radius-md);
    color: var(--color-accent);
    font-size: 0.8125rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-copy:hover {
    background: rgba(0, 212, 255, 0.25);
}

.btn-copy svg {
    width: 14px;
    height: 14px;
}

.btn-copy.copied {
    background: rgba(0, 255, 136, 0.2);
    border-color: rgba(0, 255, 136, 0.4);
    color: var(--color-secondary);
}

.quickstart-share-permission {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* Completion */
.quickstart-complete {
    text-align: center;
    padding: var(--space-2xl);
    background: linear-gradient(135deg, 
        rgba(0, 255, 136, 0.1) 0%, 
        rgba(0, 212, 255, 0.05) 100%);
    border: 2px solid rgba(0, 255, 136, 0.3);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 700px;
}

.quickstart-complete-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #00ff88 0%, #00cc6a 100%);
    border-radius: 50%;
}

.quickstart-complete-icon svg {
    width: 40px;
    height: 40px;
    stroke: var(--color-primary);
}

.quickstart-complete-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-secondary);
    margin-bottom: var(--space-sm);
}

.quickstart-complete-desc {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* Optional step styling */
.quickstart-step-optional {
    border-style: dashed;
    background: rgba(255, 193, 7, 0.03);
    border-color: rgba(255, 193, 7, 0.3);
}

.quickstart-step-optional:hover {
    background: rgba(255, 193, 7, 0.05);
    border-color: rgba(255, 193, 7, 0.5);
}

.quickstart-step-number-optional {
    background: linear-gradient(135deg, #ffc107 0%, #ff9800 100%);
}

.optional-badge {
    display: inline-block;
    background: rgba(255, 193, 7, 0.2);
    color: #ffc107;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: 4px;
    margin-left: var(--space-sm);
    vertical-align: middle;
}

.optional-items {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-top: var(--space-md);
}

.optional-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}

.optional-item-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    color: var(--color-white);
    margin-bottom: var(--space-xs);
}

.optional-item-header svg {
    width: 20px;
    height: 20px;
    stroke: var(--color-accent);
}

.optional-item-desc {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.6;
}

/* PuRuth step styling */
.quickstart-step-puruth {
    background: rgba(100, 116, 139, 0.1);
    border-color: rgba(100, 116, 139, 0.3);
}

.quickstart-step-puruth:hover {
    background: rgba(100, 116, 139, 0.15);
    border-color: rgba(100, 116, 139, 0.5);
}

.quickstart-step-number-puruth {
    background: linear-gradient(135deg, #64748b 0%, #475569 100%);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quickstart-step-number-puruth svg {
    width: 28px;
    height: 28px;
    stroke: var(--color-white);
}

.puruth-badge {
    display: inline-block;
    background: rgba(100, 116, 139, 0.3);
    color: #94a3b8;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: 4px;
    margin-left: var(--space-sm);
    vertical-align: middle;
}

/* Mobile responsive */
@media (max-width: 768px) {
    .quickstart-step {
        flex-direction: column;
        gap: var(--space-lg);
        padding: var(--space-xl);
    }
    
    .quickstart-step-number {
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .quickstart-step-title {
        font-size: 1.25rem;
    }
    
    .btn-quickstart-action,
    .btn-quickstart-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .quickstart-share-email {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .optional-badge,
    .puruth-badge {
        display: block;
        margin-left: 0;
        margin-top: var(--space-xs);
    }
}