/* =====================================================
   PuRuth Philosophy Page - Style Sheet
   Zero Touch Transformation
   
   Corporate Design - Deep Indigo × Gold × Off-White
   ===================================================== */

/* =====================================================
   CSS Custom Properties (Variables)
   ===================================================== */
:root {
    /* Primary Colors - Deep Indigo Theme (Deeper) */
    --color-primary: #060d17;
    --color-primary-light: #0c1a2e;
    --color-primary-dark: #030811;
    --color-secondary: #0f1f35;
    
    /* Gold Accent */
    --color-gold: #c9a227;
    --color-gold-light: #d4b33d;
    --color-gold-dark: #a68820;
    --color-gold-muted: rgba(201, 162, 39, 0.15);
    
    /* Blue Accent (Subtle) */
    --color-accent: #1e3a5f;
    --color-accent-light: #2d5a87;
    
    /* Text Colors */
    --color-text-primary: #f0f4f8;
    --color-text-secondary: #9fb3c8;
    --color-text-muted: #627d98;
    
    /* Off-White & Light Colors */
    --color-white: #ffffff;
    --color-off-white: #f8f9fa;
    --color-cream: #faf9f7;
    --color-gray-50: #f5f7fa;
    --color-gray-100: #e8ecf1;
    --color-gray-200: #d1d9e3;
    --color-gray-300: #a3b3c6;
    --color-gray-400: #7b8fa6;
    --color-gray-500: #566b82;
    --color-gray-600: #3d4f66;
    --color-gray-700: #2a3a50;
    --color-gray-800: #1a2736;
    --color-gray-900: #0d1520;
    --color-black: #030811;
    
    /* Gradients */
    --gradient-hero: linear-gradient(180deg, 
        rgba(6, 13, 23, 0.98) 0%, 
        rgba(12, 26, 46, 0.96) 50%,
        rgba(6, 13, 23, 0.98) 100%);
    --gradient-dark: linear-gradient(180deg, #060d17 0%, #0c1a2e 50%, #060d17 100%);
    --gradient-section: linear-gradient(180deg, #0a1525 0%, #060d17 100%);
    --gradient-gold: linear-gradient(135deg, #c9a227 0%, #d4b33d 50%, #c9a227 100%);
    
    /* Typography */
    --font-heading: 'Noto Sans JP', 'Hiragino Sans', 'Yu Gothic', sans-serif;
    --font-body: 'Noto Sans JP', 'Hiragino Sans', 'Yu Gothic', sans-serif;
    --font-accent: 'Inter', 'Helvetica Neue', sans-serif;
    
    /* 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;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.2);
    --shadow-gold: 0 4px 20px rgba(201, 162, 39, 0.2);
    
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.8;
    color: var(--color-text-primary);
    background-color: var(--color-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    letter-spacing: 0.03em;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

ul, ol {
    list-style: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* =====================================================
   Layout
   ===================================================== */
.container {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

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

.section-dark {
    background: var(--gradient-dark);
    color: var(--color-text-primary);
}

.section-light {
    background-color: var(--color-off-white);
    color: var(--color-gray-800);
}

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

.section-number {
    display: block;
    font-family: var(--font-accent);
    font-size: 0.6875rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    color: var(--color-gold);
    margin-bottom: var(--space-md);
    text-transform: uppercase;
}

.section-light .section-number {
    color: var(--color-gold-dark);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 600;
    line-height: 1.5;
    letter-spacing: 0.08em;
}

.section-dark .section-title {
    color: var(--color-text-primary);
}

.section-light .section-title {
    color: var(--color-gray-900);
}

.section-desc {
    margin-top: var(--space-lg);
    font-size: 0.9375rem;
    line-height: 1.9;
}

.section-dark .section-desc {
    color: var(--color-text-secondary);
}

.section-light .section-desc {
    color: var(--color-gray-600);
}

/* =====================================================
   Hero Section
   ===================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

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

.hero-bg .gradient-overlay {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    z-index: 1;
}

.hero-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 30%, rgba(201, 162, 39, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(30, 58, 95, 0.15) 0%, transparent 50%);
    z-index: 0;
}

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

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--color-gold);
    border-radius: 50%;
    opacity: 0.12;
    animation: float 30s infinite ease-in-out;
}

@keyframes float {
    0%, 100% { transform: translateY(0) translateX(0); opacity: 0.1; }
    50% { transform: translateY(-30px) translateX(10px); opacity: 0.2; }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: var(--space-xl);
    max-width: 800px;
}

/* =====================================================
   Hero Icon - ZTT Logo Animation
   ===================================================== */
.hero-icon-wrapper {
    margin-bottom: var(--space-2xl);
    perspective: 1000px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-z-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    width: 180px;
    height: 180px;
}

.ztt-logo {
    width: 160px;
    height: 160px;
    object-fit: contain;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    animation: iconEmergeDissolve 12s ease-in-out infinite;
    filter: drop-shadow(0 0 25px rgba(201, 162, 39, 0.5)) 
            drop-shadow(0 0 50px rgba(201, 162, 39, 0.3))
            drop-shadow(0 0 80px rgba(201, 162, 39, 0.15));
}

@keyframes iconEmergeDissolve {
    0% {
        opacity: 0;
        filter: blur(25px) 
                drop-shadow(0 0 40px rgba(201, 162, 39, 0.7)) 
                drop-shadow(0 0 70px rgba(201, 162, 39, 0.4));
        transform: translate(-50%, -50%) scale(0.7);
    }
    12% {
        opacity: 1;
        filter: blur(0px) 
                drop-shadow(0 0 25px rgba(201, 162, 39, 0.5)) 
                drop-shadow(0 0 50px rgba(201, 162, 39, 0.3))
                drop-shadow(0 0 80px rgba(201, 162, 39, 0.15));
        transform: translate(-50%, -50%) scale(1);
    }
    80% {
        opacity: 1;
        filter: blur(0px) 
                drop-shadow(0 0 25px rgba(201, 162, 39, 0.5)) 
                drop-shadow(0 0 50px rgba(201, 162, 39, 0.3))
                drop-shadow(0 0 80px rgba(201, 162, 39, 0.15));
        transform: translate(-50%, -50%) scale(1);
    }
    100% {
        opacity: 0;
        filter: blur(20px) 
                drop-shadow(0 0 40px rgba(201, 162, 39, 0.6)) 
                drop-shadow(0 0 80px rgba(201, 162, 39, 0.3));
        transform: translate(-50%, -50%) scale(1.06);
    }
}

.icon-glow-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 200px;
    height: 200px;
    border: 1px solid rgba(201, 162, 39, 0.25);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: ringEmerge 12s ease-in-out infinite;
    box-shadow: 0 0 25px rgba(201, 162, 39, 0.12),
                inset 0 0 25px rgba(201, 162, 39, 0.08);
}

.icon-glow-ring-2 {
    width: 260px;
    height: 260px;
    border-color: rgba(201, 162, 39, 0.15);
    animation: ringDissolve 12s ease-in-out infinite;
    box-shadow: 0 0 40px rgba(201, 162, 39, 0.08),
                inset 0 0 40px rgba(201, 162, 39, 0.04);
}

.icon-glow-ring-3 {
    width: 320px;
    height: 320px;
    border-color: rgba(201, 162, 39, 0.08);
    animation: ringDissolve 12s ease-in-out infinite 0.5s;
    box-shadow: 0 0 60px rgba(201, 162, 39, 0.04);
}

@keyframes ringEmerge {
    0% { transform: translate(-50%, -50%) scale(0.4); opacity: 0; }
    12% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    80% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    100% { transform: translate(-50%, -50%) scale(1.4); opacity: 0; }
}

@keyframes ringDissolve {
    0% { transform: translate(-50%, -50%) scale(0.5); opacity: 0; }
    15% { transform: translate(-50%, -50%) scale(1); opacity: 0.35; }
    85% { transform: translate(-50%, -50%) scale(1); opacity: 0.35; }
    100% { transform: translate(-50%, -50%) scale(1.5); opacity: 0; }
}

/* Glow Aura - Ambient light effect */
.icon-glow-aura {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 220px;
    height: 220px;
    transform: translate(-50%, -50%);
    background: radial-gradient(
        ellipse at center,
        rgba(201, 162, 39, 0.2) 0%,
        rgba(201, 162, 39, 0.08) 35%,
        rgba(201, 162, 39, 0.02) 55%,
        transparent 70%
    );
    border-radius: 50%;
    animation: auraBreath 12s ease-in-out infinite;
    pointer-events: none;
}

@keyframes auraBreath {
    0% { 
        transform: translate(-50%, -50%) scale(0.6); 
        opacity: 0;
    }
    12% { 
        transform: translate(-50%, -50%) scale(1); 
        opacity: 1;
    }
    50% { 
        transform: translate(-50%, -50%) scale(1.08); 
        opacity: 0.85;
    }
    80% { 
        transform: translate(-50%, -50%) scale(1); 
        opacity: 1;
    }
    100% { 
        transform: translate(-50%, -50%) scale(1.25); 
        opacity: 0;
    }
}

.hero-badge {
    display: inline-block;
    margin-bottom: var(--space-3xl);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.2s;
    opacity: 0;
}

.badge-text {
    font-family: var(--font-accent);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.25em;
    text-transform: uppercase;
    color: var(--color-gold);
    padding: var(--space-sm) var(--space-xl);
    border: 1px solid var(--color-gold);
    border-radius: var(--radius-sm);
    background: rgba(201, 162, 39, 0.05);
}

.hero-title {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.4;
    margin-bottom: var(--space-xl);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.4s;
    opacity: 0;
    letter-spacing: 0.1em;
}

.title-line {
    display: block;
    font-size: clamp(1.75rem, 5vw, 3rem);
    color: var(--color-text-primary);
}

.title-accent {
    color: var(--color-gold);
}

.hero-subtitle {
    font-size: 1.0625rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-3xl);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.6s;
    opacity: 0;
    letter-spacing: 0.08em;
    line-height: 1.9;
}

.hero-cta {
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 0.8s;
    opacity: 0;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-heading);
    font-weight: 500;
    font-size: 0.875rem;
    padding: var(--space-md) var(--space-xl);
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    letter-spacing: 0.08em;
}

.btn-primary {
    background: transparent;
    color: var(--color-gold);
    border: 1px solid var(--color-gold);
}

.btn-primary:hover {
    background: rgba(201, 162, 39, 0.1);
    transform: translateY(-2px);
}

.btn-arrow {
    width: 14px;
    height: 14px;
    transition: transform var(--transition-base);
}

.btn:hover .btn-arrow {
    transform: translate(2px, -2px);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: var(--space-2xl);
    left: 0;
    right: 0;
    margin: 0 auto;
    width: fit-content;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 1s;
    opacity: 0;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(180deg, var(--color-gold) 0%, transparent 100%);
    opacity: 0.5;
}

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

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* =====================================================
   Why Z Section
   ===================================================== */
.z-concept {
    max-width: 700px;
    margin: 0 auto;
}

.alphabet-flow {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.alphabet-container {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.letter {
    font-family: var(--font-accent);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-text-muted);
    opacity: 0;
    animation: letterReveal 0.5s ease forwards;
}

.letter[data-delay="0"] { animation-delay: 0.3s; }
.letter[data-delay="1"] { animation-delay: 0.5s; }
.letter[data-delay="2"] { animation-delay: 0.7s; }
.letter[data-delay="3"] { animation-delay: 0.9s; }
.letter[data-delay="4"] { animation-delay: 1.1s; }

@keyframes letterReveal {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.letter-z {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-gold);
    text-shadow: 0 0 40px rgba(201, 162, 39, 0.4);
    line-height: 1;
    margin-top: -0.5rem;
}

.letter-z-container {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
    vertical-align: baseline;
}

.final-label-inline {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--color-gold);
    animation: fadeInUp 0.8s ease forwards;
    animation-delay: 1.3s;
    opacity: 0;
    margin-top: var(--space-xs);
}

.final-label-inline .label-arrow-down {
    font-size: 1rem;
    animation: bounce 1.5s ease infinite;
    animation-delay: 2s;
}

.final-label-inline .label-text {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    font-weight: 600;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(3px); }
}

.arrow, .dots {
    font-size: 1rem;
    color: var(--color-text-muted);
    opacity: 0.4;
}

.final-label {
    display: none; /* Hidden - replaced by inline version */
}

.label-arrow {
    font-size: 1rem;
    line-height: 1;
    opacity: 0.7;
}

.label-text {
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    font-weight: 500;
}

/* Evolution Flow */
.evolution-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
    padding: var(--space-xl);
    background: rgba(201, 162, 39, 0.03);
    border: 1px solid rgba(201, 162, 39, 0.1);
    border-radius: var(--radius-md);
}

.evolution-item {
    padding: var(--space-sm) var(--space-lg);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-sm);
}

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

.evolution-final {
    background: var(--gradient-gold);
}

.evolution-final .evo-text {
    color: var(--color-primary);
    font-weight: 600;
}

.evo-sublabel {
    display: block;
    font-size: 0.625rem;
    color: rgba(6, 13, 23, 0.7);
    margin-top: 2px;
}

.evo-arrow, .evo-dots {
    color: var(--color-text-muted);
    opacity: 0.4;
    font-size: 0.875rem;
}

/* Z Quote */
.z-quote {
    text-align: center;
    padding: var(--space-2xl);
    background: rgba(201, 162, 39, 0.05);
    border-left: 2px solid var(--color-gold);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.z-quote p {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
    line-height: 2;
}

.z-quote .quote-highlight {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-gold);
    margin-bottom: 0;
}

/* =====================================================
   What is ZTT Section - Enhanced
   ===================================================== */
.ztt-intro {
    max-width: 800px;
    margin: 0 auto;
}

/* Definition Block */
.ztt-definition-block {
    text-align: center;
    margin-bottom: var(--space-4xl);
    padding: var(--space-2xl);
    background: rgba(201, 162, 39, 0.05);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(201, 162, 39, 0.1);
}

.def-main {
    margin-bottom: var(--space-2xl);
}

.def-lead {
    font-size: 1.125rem;
    line-height: 2;
    color: var(--color-text-primary);
}

.def-lead strong {
    color: var(--color-gold);
}

.def-comparison-mini {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    max-width: 600px;
    margin: 0 auto;
}

.def-item-mini {
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-text-muted);
    text-align: left;
}

.def-item-mini.def-highlight {
    background: rgba(201, 162, 39, 0.1);
    border-left-color: var(--color-gold);
}

.def-term {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
}

.def-highlight .def-term {
    color: var(--color-gold);
}

.def-meaning {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

.def-meaning strong {
    color: var(--color-gold);
}

/* Why Z Block */
.why-z-block {
    margin-bottom: var(--space-4xl);
}

.block-title {
    text-align: center;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gold);
    margin-bottom: var(--space-2xl);
    letter-spacing: 0.08em;
}

/* Flow Block */
.flow-block {
    margin-bottom: var(--space-4xl);
}

/* Goal Block */
.goal-block {
    text-align: center;
    padding: var(--space-2xl);
    background: rgba(201, 162, 39, 0.08);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(201, 162, 39, 0.15);
}

.goal-text {
    font-size: 1rem;
    line-height: 2;
    color: var(--color-text-secondary);
}

.goal-text strong {
    color: var(--color-gold);
}

/* Flow Comparison */
.flow-comparison {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.flow-old, .flow-new {
    padding: var(--space-xl);
    border-radius: var(--radius-md);
}

.flow-old {
    background: var(--color-gray-50);
    border: 1px solid var(--color-gray-200);
}

.flow-new {
    background: var(--color-gold-muted);
    border: 1px solid rgba(201, 162, 39, 0.2);
}

.flow-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
}

.flow-old .flow-label {
    color: var(--color-gray-500);
}

.flow-new .flow-label {
    color: var(--color-gold-dark);
}

.flow-steps {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
    margin-bottom: var(--space-md);
}

.flow-step {
    padding: var(--space-sm) var(--space-md);
    background: var(--color-white);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    color: var(--color-gray-700);
    border: 1px solid var(--color-gray-200);
}

.flow-step-problem {
    background: rgba(220, 38, 38, 0.1);
    border-color: rgba(220, 38, 38, 0.2);
    color: #b91c1c;
}

.flow-step-highlight {
    background: var(--color-gold);
    border-color: var(--color-gold);
    color: var(--color-primary);
    font-weight: 500;
}

/* AI Agent Process - Dissolving Effect */
.flow-step-ai {
    background: linear-gradient(135deg, #0a1628 0%, #0f1f35 100%);
    border: 2px dashed rgba(201, 162, 39, 0.5);
    color: var(--color-gold);
    padding: var(--space-md) var(--space-lg);
    position: relative;
    overflow: hidden;
}

.flow-step-ai::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 200%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(201, 162, 39, 0.1) 25%, 
        rgba(201, 162, 39, 0.2) 50%, 
        rgba(201, 162, 39, 0.1) 75%, 
        transparent 100%);
    animation: dissolve-wave 3s ease-in-out infinite;
}

@keyframes dissolve-wave {
    0% { transform: translateX(0); }
    100% { transform: translateX(50%); }
}

.ai-dissolve {
    position: relative;
    z-index: 1;
    display: block;
    font-weight: 500;
}

.ai-subtext {
    display: block;
    font-size: 0.625rem;
    color: rgba(201, 162, 39, 0.7);
    margin-top: 4px;
    letter-spacing: 0.1em;
}

/* Human In The Loop */
.flow-step-human {
    background: var(--color-white);
    border: 2px solid var(--color-gold);
    color: var(--color-gray-800);
    padding: var(--space-md) var(--space-lg);
}

.human-loop {
    display: block;
    font-size: 0.5625rem;
    color: var(--color-gold-dark);
    margin-top: 4px;
    letter-spacing: 0.08em;
    font-weight: 600;
}

.flow-arrow {
    color: var(--color-gray-400);
    font-size: 0.875rem;
}

.flow-note {
    font-size: 0.75rem;
    color: var(--color-gray-500);
    font-style: italic;
}

.flow-note-good {
    color: var(--color-gold-dark);
    font-weight: 500;
}

/* =====================================================
   Core Philosophy Section (Light Background)
   ===================================================== */
.philosophy-content {
    max-width: 800px;
    margin: 0 auto;
}

.philosophy-intro {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.philosophy-lead {
    font-size: 1rem;
    line-height: 2.2;
    color: var(--color-gray-700);
}

.philosophy-lead strong {
    color: var(--color-gray-900);
}

.philosophy-diagram {
    margin-bottom: var(--space-3xl);
}

.diagram-layer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.diagram-box {
    width: 100%;
    max-width: 500px;
    padding: var(--space-xl);
    border-radius: var(--radius-md);
    text-align: center;
    border: 1px solid rgba(201, 162, 39, 0.3);
}

.diagram-origin {
    background: rgba(201, 162, 39, 0.15);
}

.diagram-process {
    background: rgba(201, 162, 39, 0.1);
}

.diagram-result {
    background: rgba(201, 162, 39, 0.05);
}

.diagram-label {
    display: block;
    font-family: var(--font-accent);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gold-dark);
    letter-spacing: 0.05em;
}

.diagram-sublabel {
    display: block;
    font-size: 0.6875rem;
    color: var(--color-gray-500);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
}

.diagram-desc {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    line-height: 1.7;
}

.diagram-arrow {
    font-size: 1.5rem;
    color: var(--color-gold-dark);
    opacity: 0.5;
}

.philosophy-reason {
    text-align: center;
    padding: var(--space-2xl);
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-gray-100);
}

.reason-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gold-dark);
    margin-bottom: var(--space-lg);
    letter-spacing: 0.05em;
}

.reason-text {
    font-size: 1rem;
    line-height: 2;
    color: var(--color-gray-600);
    margin-bottom: var(--space-md);
}

.reason-text:last-child {
    margin-bottom: 0;
}

.reason-text strong {
    color: var(--color-gray-800);
}

/* =====================================================
   Principles Section (Dark Background)
   ===================================================== */
.principles-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    max-width: 900px;
    margin: 0 auto;
}

.principle-card {
    background: rgba(201, 162, 39, 0.03);
    border-radius: var(--radius-md);
    padding: var(--space-2xl);
    border: 1px solid rgba(201, 162, 39, 0.1);
    transition: all var(--transition-base);
}

.principle-card:hover {
    transform: translateY(-3px);
    background: rgba(201, 162, 39, 0.06);
    border-color: rgba(201, 162, 39, 0.2);
}

.principle-number {
    display: inline-block;
    font-family: var(--font-accent);
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--color-gold);
    background: rgba(201, 162, 39, 0.15);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-lg);
    letter-spacing: 0.1em;
}

.principle-title {
    font-family: var(--font-accent);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

.principle-subtitle {
    font-size: 0.75rem;
    color: var(--color-gold);
    margin-bottom: var(--space-md);
    letter-spacing: 0.05em;
}

.principle-desc {
    font-size: 0.875rem;
    line-height: 1.8;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.principle-list {
    margin-top: var(--space-md);
}

.principle-list li {
    position: relative;
    padding-left: var(--space-md);
    margin-bottom: var(--space-sm);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

.principle-list li::before {
    content: '–';
    position: absolute;
    left: 0;
    color: var(--color-gold);
    opacity: 0.5;
}

.principle-quote {
    font-size: 0.8125rem;
    font-style: italic;
    color: var(--color-gold);
    opacity: 0.8;
    margin-top: var(--space-md);
}

/* Responsive for new sections */
@media (max-width: 768px) {
    .def-comparison-mini {
        grid-template-columns: 1fr;
    }
    
    .principles-grid {
        grid-template-columns: 1fr;
    }
    
    .flow-steps {
        flex-direction: column;
        align-items: stretch;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
        align-self: center;
    }
    
    .ztt-definition-block {
        padding: var(--space-lg);
    }
    
    .def-lead {
        font-size: 1rem;
    }
}

/* =====================================================
   Comparison Section - Matrix Layout
   ===================================================== */
.comparison-table {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    border-collapse: collapse;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.comparison-table thead {
    background: var(--color-gray-900);
}

.comparison-table th {
    padding: var(--space-lg) var(--space-xl);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    text-align: center;
}

.comparison-table th:first-child {
    text-align: left;
    color: var(--color-gray-400);
}

.comparison-table th.th-before {
    color: var(--color-gray-400);
    width: 35%;
}

.comparison-table th.th-after {
    color: var(--color-gold);
    width: 35%;
}

.comparison-table tbody tr {
    border-bottom: 1px solid var(--color-gray-100);
    transition: background var(--transition-fast);
}

.comparison-table tbody tr:last-child {
    border-bottom: none;
}

.comparison-table tbody tr:hover {
    background: var(--color-gray-50);
}

.comparison-table td {
    padding: var(--space-lg) var(--space-xl);
    font-size: 0.9375rem;
    vertical-align: middle;
}

.comparison-table td:first-child {
    color: var(--color-gray-500);
    font-size: 0.8125rem;
}

.comparison-table .td-before {
    color: var(--color-gray-600);
    text-align: center;
}

.comparison-table .td-after {
    color: var(--color-gray-900);
    font-weight: 500;
    text-align: center;
    position: relative;
}

.comparison-table .td-after::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--color-gold);
    border-radius: 2px;
}

/* =====================================================
   Trinity Section (Light Background)
   ===================================================== */
.trinity-container {
    max-width: 900px;
    margin: 0 auto;
}

.trinity-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    margin-bottom: var(--space-3xl);
}

.trinity-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-100);
    border-radius: var(--radius-md);
    padding: var(--space-2xl) var(--space-xl);
    text-align: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.trinity-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-gold);
}

.trinity-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-lg);
    color: var(--color-gold-dark);
    opacity: 0.8;
}

.trinity-icon svg {
    width: 100%;
    height: 100%;
}

.trinity-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gray-800);
    margin-bottom: var(--space-sm);
    letter-spacing: 0.08em;
}

.trinity-desc {
    font-size: 0.75rem;
    color: var(--color-gold-dark);
    margin-bottom: var(--space-lg);
    letter-spacing: 0.05em;
}

.trinity-list {
    text-align: left;
}

.trinity-list li {
    position: relative;
    padding-left: var(--space-md);
    margin-bottom: var(--space-sm);
    color: var(--color-gray-600);
    font-size: 0.8125rem;
    line-height: 1.7;
}

.trinity-list li::before {
    content: '–';
    position: absolute;
    left: 0;
    color: var(--color-gold-dark);
    opacity: 0.5;
}

/* Trinity Fusion */
.trinity-fusion {
    text-align: center;
}

.fusion-lines {
    height: 50px;
    margin-bottom: var(--space-lg);
    opacity: 0.4;
}

.fusion-lines svg {
    width: 100%;
    height: 100%;
}

.fusion-line {
    stroke: var(--color-gold-dark);
    stroke-width: 1;
    stroke-dasharray: 4 3;
}

.fusion-result {
    display: inline-block;
}

.fusion-badge {
    display: inline-block;
    background: var(--gradient-gold);
    padding: var(--space-md) var(--space-2xl);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-md);
}

.fusion-label {
    font-family: var(--font-accent);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: 0.1em;
}

.fusion-text {
    font-size: 0.875rem;
    color: var(--color-gray-600);
    letter-spacing: 0.05em;
}

/* =====================================================
   Experience Section - Impressive Design
   ===================================================== */
.section-experience {
    background: var(--gradient-dark);
    color: var(--color-text-primary);
    overflow: hidden;
}

.section-experience .section-title {
    color: var(--color-white);
}

.section-experience .section-number {
    color: var(--color-gold);
}

/* Experience Block - Alternating Layout */
.exp-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
    padding: var(--space-4xl) 0;
    border-bottom: 1px solid rgba(201, 162, 39, 0.1);
}

.exp-block:last-child {
    border-bottom: none;
}

.exp-block-2 {
    direction: rtl;
}

.exp-block-2 > * {
    direction: ltr;
}

/* Visual Side */
.exp-visual {
    text-align: center;
    padding: var(--space-2xl);
}

/* Abstract Experience Icons */
.abstract-exp-icon {
    width: 100%;
    max-width: 280px;
    height: auto;
    margin: 0 auto var(--space-lg);
    filter: drop-shadow(0 10px 25px rgba(0, 0, 0, 0.2));
    transition: transform var(--transition-base);
}

.abstract-exp-icon:hover {
    transform: translateY(-5px);
}

.abstract-exp-icon svg {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: 0 0 0 1px rgba(201, 162, 39, 0.1);
}

.exp-icon-large {
    font-size: 5rem;
    line-height: 1;
    margin-bottom: var(--space-xl);
    filter: drop-shadow(0 0 30px rgba(201, 162, 39, 0.3));
}

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

.metric-label {
    display: block;
    width: 100%;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
    letter-spacing: 0.1em;
}

.metric-from {
    font-family: var(--font-accent);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-decoration: line-through;
    opacity: 0.6;
}

.metric-arrow {
    font-size: 1.5rem;
    color: var(--color-gold);
}

.metric-to {
    font-family: var(--font-accent);
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-gold);
    line-height: 1;
    text-shadow: 0 0 40px rgba(201, 162, 39, 0.5);
}

.exp-tagline {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-gold);
    line-height: 1.6;
    padding: var(--space-xl);
    background: rgba(201, 162, 39, 0.1);
    border-radius: var(--radius-md);
    border: 1px solid rgba(201, 162, 39, 0.2);
}

/* Text Side */
.exp-text {
    padding: var(--space-xl);
}

.exp-label {
    display: inline-block;
    font-family: var(--font-accent);
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: var(--color-gold);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--color-gold);
}

.exp-headline {
    font-size: 1.75rem;
    font-weight: 600;
    line-height: 1.5;
    color: var(--color-white);
    margin-bottom: var(--space-xl);
    letter-spacing: 0.05em;
}

.exp-desc {
    font-size: 1rem;
    line-height: 2;
    color: var(--color-text-secondary);
}

.exp-desc strong {
    color: var(--color-gold);
    font-weight: 600;
}

/* Responsive */
@media (max-width: 900px) {
    .exp-block,
    .exp-block-2 {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
        text-align: center;
        direction: ltr;
    }
    
    .exp-text {
        order: 1;
    }
    
    .exp-visual {
        order: 2;
    }
    
    .exp-headline {
        font-size: 1.5rem;
    }
    
    .exp-icon-large {
        font-size: 4rem;
    }
    
    .metric-to {
        font-size: 3rem;
    }
}

/* =====================================================
   Timeline Section
   ===================================================== */
.timeline {
    position: relative;
    max-width: 650px;
    margin: 0 auto;
    padding: var(--space-xl) 0;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(180deg, var(--color-gold) 0%, var(--color-text-muted) 100%);
    transform: translateX(-50%);
    opacity: 0.25;
}

.timeline-item {
    position: relative;
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--space-2xl);
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
    text-align: right;
}

.timeline-time {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: -20px;
    font-family: var(--font-accent);
    font-size: 0.6875rem;
    font-weight: 500;
    color: var(--color-gold);
    background: var(--color-primary);
    padding: 2px var(--space-sm);
    border-radius: var(--radius-sm);
    letter-spacing: 0.05em;
}

.timeline-dot {
    position: absolute;
    left: 50%;
    top: 6px;
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border: 2px solid var(--color-gold);
    border-radius: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.timeline-dot-final {
    width: 12px;
    height: 12px;
    background: var(--color-gold);
    box-shadow: 0 0 16px rgba(201, 162, 39, 0.5);
}

.timeline-content {
    width: calc(50% - 28px);
    padding: var(--space-md) var(--space-lg);
    background: rgba(201, 162, 39, 0.03);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(201, 162, 39, 0.08);
}

.timeline-content-final {
    background: rgba(201, 162, 39, 0.08);
    border-color: rgba(201, 162, 39, 0.2);
}

.timeline-icon {
    font-size: 1rem;
    margin-bottom: var(--space-xs);
    opacity: 0.7;
}

.timeline-content h4 {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 4px;
    letter-spacing: 0.03em;
}

.timeline-content p {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.timeline-complete {
    font-weight: 600;
    color: var(--color-gold) !important;
    font-size: 0.875rem !important;
}

.timeline-divider {
    position: relative;
    text-align: center;
    margin: var(--space-3xl) 0;
    z-index: 1;
}

.timeline-divider span {
    display: inline-block;
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-primary);
    border: 1px solid rgba(201, 162, 39, 0.15);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    letter-spacing: 0.08em;
}

/* =====================================================
   Data Architecture Section
   ===================================================== */
.data-architecture {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.arch-client {
    background: var(--color-white);
    border-radius: var(--radius-md);
    padding: var(--space-2xl);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--space-lg);
    border: 1px solid var(--color-gray-100);
}

.arch-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-gray-500);
    margin-bottom: var(--space-xl);
    letter-spacing: 0.08em;
}

.arch-boxes {
    display: flex;
    justify-content: center;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.arch-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-lg);
    background: var(--color-gray-50);
    border-radius: var(--radius-sm);
    min-width: 110px;
    border: 1px solid var(--color-gray-100);
}

.arch-icon {
    font-size: 1.5rem;
    opacity: 0.6;
}

.arch-name {
    font-weight: 500;
    color: var(--color-gray-700);
    font-size: 0.8125rem;
}

.arch-data {
    font-size: 0.6875rem;
    color: var(--color-gray-500);
}

.arch-notice {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-gold-muted);
    border-radius: var(--radius-sm);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--color-gray-700);
}

.lock-icon {
    font-size: 0.875rem;
}

/* Architecture Connection */
.arch-connection {
    position: relative;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.arch-connection svg {
    position: absolute;
    width: 60px;
    height: 100%;
}

.conn-line {
    stroke: var(--color-gray-300);
    stroke-width: 1;
    stroke-dasharray: 3 3;
}

.arch-badge {
    position: relative;
    z-index: 1;
    padding: var(--space-xs) var(--space-md);
    background: var(--color-off-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-sm);
    font-size: 0.6875rem;
    font-weight: 500;
    color: var(--color-gray-500);
    letter-spacing: 0.05em;
}

.arch-puruth {
    margin-top: var(--space-lg);
}

.puruth-box {
    display: inline-block;
    background: var(--color-white);
    border: 1px solid var(--color-gold);
    border-radius: var(--radius-md);
    padding: var(--space-xl) var(--space-2xl);
    box-shadow: var(--shadow-gold);
}

.puruth-logo {
    display: block;
    font-family: var(--font-accent);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gray-800);
    margin-bottom: var(--space-md);
    letter-spacing: 0.08em;
}

.puruth-list {
    text-align: left;
}

.puruth-list li {
    position: relative;
    padding-left: var(--space-md);
    margin-bottom: var(--space-sm);
    font-size: 0.75rem;
    color: var(--color-gray-600);
    line-height: 1.6;
}

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

/* =====================================================
   Mission Section
   ===================================================== */
.section-mission {
    background: var(--gradient-dark);
    color: var(--color-text-primary);
    padding: var(--space-5xl) 0;
    text-align: center;
}

.mission-content {
    max-width: 700px;
    margin: 0 auto;
}

.mission-title {
    margin-bottom: var(--space-2xl);
}

.mission-number {
    display: block;
    font-family: var(--font-accent);
    font-size: clamp(4rem, 12vw, 7rem);
    font-weight: 700;
    line-height: 1;
    color: var(--color-gold);
    margin-bottom: var(--space-md);
}

.mission-text {
    display: block;
    font-size: 1.125rem;
    font-weight: 400;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-sm);
    letter-spacing: 0.1em;
}

.mission-highlight {
    display: block;
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--color-text-primary);
    letter-spacing: 0.08em;
}

.mission-desc {
    font-size: 0.9375rem;
    color: var(--color-text-secondary);
    line-height: 2.2;
}

/* =====================================================
   CTA Section
   ===================================================== */
.section-cta {
    background: var(--gradient-gold);
    padding: var(--space-4xl) 0;
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1.7;
    margin-bottom: var(--space-2xl);
    letter-spacing: 0.08em;
}

.cta-desc {
    font-size: 1rem;
    color: var(--color-primary);
    opacity: 0.7;
    margin-bottom: var(--space-2xl);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
    margin-bottom: var(--space-2xl);
}

.cta-back {
    text-align: center;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    transition: all var(--transition-base);
    padding: var(--space-sm) var(--space-md);
}

.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);
}

.btn-cta-primary {
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-md) var(--space-2xl);
    font-weight: 500;
    border-radius: var(--radius-sm);
}

.btn-cta-primary:hover {
    background: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-cta-secondary {
    background: transparent;
    color: var(--color-primary);
    padding: var(--space-md) var(--space-2xl);
    border: 1px solid var(--color-primary);
    font-weight: 500;
    border-radius: var(--radius-sm);
}

.btn-cta-secondary:hover {
    background: rgba(6, 13, 23, 0.1);
    transform: translateY(-2px);
}

.btn-cta-primary svg,
.btn-cta-secondary svg {
    width: 14px;
    height: 14px;
}

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

.footer-content {
    max-width: 600px;
    margin: 0 auto;
}

.footer-copy {
    font-size: 0.6875rem;
    margin-bottom: var(--space-md);
    letter-spacing: 0.08em;
}

.footer-tagline {
    font-size: 0.6875rem;
    font-style: italic;
    color: var(--color-text-muted);
    opacity: 0.6;
}

/* =====================================================
   Animations
   ===================================================== */
[data-aos] {
    opacity: 0;
    transform: translateY(16px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

[data-aos="fade-left"] {
    transform: translateX(-16px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-right"] {
    transform: translateX(16px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

/* =====================================================
   Responsive Design
   ===================================================== */
@media (max-width: 900px) {
    .trinity-cards,
    .experience-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }
}

@media (max-width: 768px) {
    :root {
        --space-5xl: 5rem;
        --space-4xl: 4rem;
    }
    
    .container {
        padding: 0 var(--space-lg);
    }
    
    .comparison-table {
        font-size: 0.875rem;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: var(--space-md);
    }
    
    /* Timeline */
    .timeline-line {
        left: 12px;
    }
    
    .timeline-item,
    .timeline-item:nth-child(odd) {
        flex-direction: row;
        text-align: left;
        padding-left: 36px;
    }
    
    .timeline-time {
        left: 12px;
        transform: translateX(-50%);
    }
    
    .timeline-dot {
        left: 12px;
    }
    
    .timeline-content {
        width: 100%;
    }
    
    /* Data Architecture */
    .arch-boxes {
        flex-direction: column;
        align-items: center;
    }
    
    .arch-box {
        width: 100%;
        max-width: 160px;
    }
    
    /* CTA */
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-cta-primary,
    .btn-cta-secondary {
        width: 100%;
        max-width: 260px;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .hero-title .title-line {
        font-size: 1.5rem;
    }
    
    .evolution-flow {
        flex-direction: column;
        gap: var(--space-sm);
    }
    
    .evo-arrow {
        transform: rotate(90deg);
    }
    
    .alphabet-container {
        gap: 4px;
    }
    
    .letter {
        font-size: 1rem;
    }
    
    .letter-z {
        font-size: 1.75rem;
        margin-top: -0.25rem;
    }
    
    .letter-z-container {
        gap: 0;
    }
    
    .final-label-inline {
        margin-top: 2px;
    }
    
    .final-label-inline .label-text {
        font-size: 0.65rem;
    }
    
    .comparison-table th:first-child,
    .comparison-table td:first-child {
        display: none;
    }
}

/* =====================================================
   Mobile-only / PC-only Display Classes
   ===================================================== */
/* Mobile-only line break */
.sp-only {
    display: none;
}

@media (max-width: 768px) {
    .sp-only {
        display: inline;
    }
    
    .pc-only {
        display: none;
    }
}

/* Word break control for Japanese text on mobile */
@media (max-width: 768px) {
    .section-desc,
    .philosophy-lead,
    .reason-text,
    .goal-text,
    .principle-desc,
    .trinity-desc,
    .fusion-text {
        word-break: keep-all;
        overflow-wrap: break-word;
    }
}

/* =====================================================
   Print Styles
   ===================================================== */
@media print {
    .hero-bg, .particles, .scroll-indicator {
        display: none;
    }
    
    .section {
        padding: 2rem 0;
        page-break-inside: avoid;
    }
    
    body {
        color: #000;
        background: #fff;
    }
}