/* ============================================
   PLATONIC RESEARCH - Professional Redesign
   Linear/Vercel/Stripe-inspired aesthetic
   ============================================ */

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

/* ============================================
   PHASE 1: Design Token System
   ============================================ */
:root {
    /* Spacing Scale (4px base) */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-7: 32px;
    --space-8: 40px;
    --space-9: 48px;
    --space-10: 64px;
    --space-11: 80px;
    --space-12: 96px;
    --space-13: 128px;

    /* Typography Scale */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-3xl: 1.875rem;
    --text-4xl: 2.25rem;
    --text-5xl: 3rem;
    --text-6xl: 3.75rem;

    /* Line Heights */
    --leading-none: 1;
    --leading-tight: 1.1;
    --leading-snug: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;

    /* Letter Spacing */
    --tracking-tighter: -0.05em;
    --tracking-tight: -0.025em;
    --tracking-normal: 0;
    --tracking-wide: 0.025em;
    --tracking-wider: 0.05em;
    --tracking-widest: 0.1em;

    /* Border Radius Scale */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 20px;
    --radius-3xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --duration-fast: 150ms;
    --duration-normal: 200ms;
    --duration-slow: 300ms;
    --duration-slower: 500ms;

    /* Accent Color Palette (Teal) */
    --accent-50: #f0fdfa;
    --accent-100: #ccfbf1;
    --accent-200: #99f6e4;
    --accent-300: #5eead4;
    --accent-400: #2dd4bf;
    --accent-500: #14b8a6;
    --accent-600: #0d9488;
    --accent-700: #0f766e;
    --accent-800: #115e59;
    --accent-900: #134e4a;

    /* Light theme (default) */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --border-color-subtle: #f1f5f9;
    --accent: var(--accent-600);
    --accent-light: var(--accent-500);
    --accent-dark: var(--accent-700);
    --accent-bg: var(--accent-50);
    --card-bg: #ffffff;

    /* Shadow System */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-accent: 0 4px 14px -2px rgba(13, 148, 136, 0.35);
    --shadow-accent-lg: 0 10px 30px -4px rgba(13, 148, 136, 0.4);

    --card-shadow: var(--shadow-sm);
    --card-shadow-hover: var(--shadow-lg);

    /* Gradient Definitions */
    --gradient-accent: linear-gradient(135deg, var(--accent-500) 0%, var(--accent-600) 100%);
    --gradient-accent-vivid: linear-gradient(135deg, var(--accent-400) 0%, var(--accent-600) 50%, var(--accent-700) 100%);
    --gradient-text: linear-gradient(135deg, var(--accent-600) 0%, var(--accent-400) 50%, var(--accent-500) 100%);
    --gradient-radial-accent: radial-gradient(circle at center, var(--accent-400) 0%, transparent 70%);
}

[data-theme="dark"] {
    --bg-primary: #0a0f1a;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: #1f2937;
    --border-color-subtle: #1f2937;
    --accent: var(--accent-400);
    --accent-light: var(--accent-300);
    --accent-dark: var(--accent-500);
    --accent-bg: rgba(45, 212, 191, 0.1);
    --card-bg: #111827;

    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3), 0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -2px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    --shadow-accent: 0 4px 14px -2px rgba(45, 212, 191, 0.3);
    --shadow-accent-lg: 0 10px 30px -4px rgba(45, 212, 191, 0.35);

    --card-shadow: var(--shadow-sm);
    --card-shadow-hover: var(--shadow-lg);

    --gradient-text: linear-gradient(135deg, var(--accent-300) 0%, var(--accent-400) 50%, var(--accent-300) 100%);
}

/* ============================================
   PHASE 2: Typography & Base Styles
   ============================================ */
html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: var(--leading-relaxed);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--duration-slow) var(--ease-out),
                color var(--duration-slow) var(--ease-out);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ============================================
   HEADER - Backdrop blur + scroll behavior
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: background-color var(--duration-slow) var(--ease-out),
                border-color var(--duration-slow) var(--ease-out),
                box-shadow var(--duration-slow) var(--ease-out);
}

[data-theme="dark"] .header {
    background: rgba(10, 15, 26, 0.85);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
    color: var(--text-primary);
    transition: opacity var(--duration-fast) var(--ease-out);
}

.logo:hover {
    opacity: 0.8;
}

.logo img {
    height: 40px;
    width: 40px;
    border-radius: var(--radius-full);
}

.logo-text {
    font-weight: 600;
    font-size: var(--text-lg);
    letter-spacing: var(--tracking-tight);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

/* Theme Toggle with SVG Icons */
.theme-toggle {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--space-2) var(--space-3);
    cursor: pointer;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration-normal) var(--ease-out);
}

.theme-toggle:hover {
    background: var(--bg-secondary);
    border-color: var(--accent);
}

.theme-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--accent-bg);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ============================================
   PHASE 3: Button System
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: var(--text-sm);
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all var(--duration-normal) var(--ease-out);
}

.btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--accent-bg);
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-accent-lg);
    filter: brightness(1.05);
}

.btn-primary:active {
    transform: translateY(0);
}

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

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--accent);
    color: var(--accent);
}

/* ============================================
   SECTIONS - Common styles
   ============================================ */
section {
    padding: var(--space-12) 0;
}

.section-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: var(--tracking-wider);
    color: var(--accent);
    margin-bottom: var(--space-4);
}

.section-label::before {
    content: '';
    display: block;
    width: 24px;
    height: 2px;
    background: var(--gradient-accent);
    border-radius: var(--radius-full);
}

.section-title {
    font-size: var(--text-4xl);
    font-weight: 700;
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tight);
    margin-bottom: var(--space-6);
}

.section-subtitle {
    font-size: var(--text-xl);
    color: var(--text-secondary);
    max-width: 720px;
    line-height: var(--leading-relaxed);
}

/* ============================================
   PHASE 5: Hero Section
   ============================================ */
.hero {
    padding-top: 160px;
    padding-bottom: var(--space-12);
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

/* Background gradient orbs */
.hero::before,
.hero::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    pointer-events: none;
}

.hero::before {
    width: 600px;
    height: 600px;
    background: var(--gradient-radial-accent);
    top: -200px;
    right: -100px;
    opacity: 0.3;
}

.hero::after {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle at center, var(--accent-300) 0%, transparent 70%);
    bottom: -100px;
    left: -100px;
    opacity: 0.2;
}

[data-theme="dark"] .hero::before {
    opacity: 0.15;
}

[data-theme="dark"] .hero::after {
    opacity: 0.1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-10);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text h1 {
    font-size: var(--text-5xl);
    font-weight: 800;
    line-height: var(--leading-tight);
    letter-spacing: var(--tracking-tighter);
    margin-bottom: var(--space-6);
}

/* Gradient text effect for hero headline */
.hero-text h1 .gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

.hero-text p {
    font-size: var(--text-xl);
    color: var(--text-secondary);
    margin-bottom: var(--space-7);
    max-width: 540px;
    line-height: var(--leading-relaxed);
}

.hero-cta {
    display: flex;
    gap: var(--space-4);
}

.hero-cta .btn {
    padding: var(--space-4) var(--space-6);
    font-size: var(--text-base);
}

/* Hero badge pill */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-3);
    background: var(--accent-bg);
    border: 1px solid var(--accent);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--accent);
    margin-bottom: var(--space-6);
}

.hero-badge::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: var(--radius-full);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Hero visual frame */
.hero-visual {
    position: relative;
}

.hero-visual::before {
    content: '';
    position: absolute;
    inset: -3px;
    background: var(--gradient-accent-vivid);
    border-radius: calc(var(--radius-xl) + 3px);
    opacity: 0.6;
    z-index: -1;
}

.hero-visual::after {
    content: '';
    position: absolute;
    inset: -20px;
    background: var(--gradient-radial-accent);
    opacity: 0.3;
    z-index: -2;
    filter: blur(40px);
}

.hero-visual img {
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    display: block;
}

/* ============================================
   PHASE 4: Comparison Cards
   ============================================ */
.advantages-comparison {
    background: var(--bg-secondary);
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-7);
    margin-top: var(--space-9);
}

.comparison-card {
    padding: var(--space-7);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    transition: transform var(--duration-slow) var(--ease-out),
                box-shadow var(--duration-slow) var(--ease-out);
}

.comparison-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-shadow-hover);
}

/* Top accent bar */
.comparison-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.comparison-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.comparison-header-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

/* Animated Clock Icon */
.animated-clock {
    position: relative;
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.animated-clock .comparison-header-icon {
    width: 100%;
    height: 100%;
}

.animated-clock .clock-hand-minute {
    transform-origin: 12px 12px;
    animation: clock-minute 8s linear infinite;
}

.animated-clock .clock-hand-second {
    transform-origin: 12px 12px;
    animation: clock-second 24s steps(60, end) infinite;
}

@keyframes clock-minute {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes clock-second {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Animated Rocket Icon */
.animated-rocket {
    position: relative;
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.animated-rocket .comparison-header-icon {
    width: 100%;
    height: 100%;
    position: relative;
    z-index: 1;
}

.rocket-flame {
    position: absolute;
    bottom: -4px;
    left: -2px;
    display: flex;
    gap: 2px;
    transform: rotate(45deg);
}

.flame-particle {
    width: 4px;
    height: 8px;
    background: linear-gradient(to bottom, var(--accent-400), var(--accent-600), transparent);
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    animation: flame-flicker 0.3s ease-in-out infinite alternate;
}

.flame-particle:nth-child(1) {
    animation-delay: 0s;
    height: 10px;
}

.flame-particle:nth-child(2) {
    animation-delay: 0.1s;
    height: 12px;
}

.flame-particle:nth-child(3) {
    animation-delay: 0.2s;
    height: 8px;
}

@keyframes flame-flicker {
    0% {
        opacity: 0.7;
        transform: scaleY(0.8) translateY(2px);
    }
    100% {
        opacity: 1;
        transform: scaleY(1.2) translateY(0);
    }
}

.comparison-card h3 {
    font-size: var(--text-xl);
    margin: 0;
}

.comparison-traditional {
    background: var(--card-bg);
}

.comparison-traditional::before {
    background: var(--text-muted);
}

.comparison-traditional h3 {
    color: var(--text-muted);
}

.comparison-traditional .comparison-header-icon {
    color: var(--text-muted);
}

.comparison-platonic {
    background: linear-gradient(135deg, var(--accent-bg) 0%, rgba(45, 212, 191, 0.05) 100%);
    border-color: var(--accent);
}

.comparison-platonic::before {
    background: var(--gradient-accent);
}

.comparison-platonic::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -100px;
    width: 300px;
    height: 300px;
    background: var(--gradient-radial-accent);
    opacity: 0.2;
    z-index: 0;
}

.comparison-platonic h3 {
    color: var(--accent);
}

.comparison-platonic .comparison-header-icon {
    color: var(--accent);
}

.comparison-list {
    list-style: none;
    position: relative;
    z-index: 1;
}

.comparison-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) 0;
    font-size: var(--text-base);
    color: var(--text-secondary);
    transition: padding-left var(--duration-fast) var(--ease-out);
}

.comparison-item:hover {
    padding-left: var(--space-2);
}

.comparison-item:not(:last-child) {
    border-bottom: 1px solid var(--border-color);
}

.comparison-platonic .comparison-item:not(:last-child) {
    border-bottom-color: rgba(13, 148, 136, 0.2);
}

[data-theme="dark"] .comparison-platonic .comparison-item:not(:last-child) {
    border-bottom-color: rgba(45, 212, 191, 0.2);
}

.comparison-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 700;
    flex-shrink: 0;
}

.comparison-icon.negative {
    background: #fee2e2;
    color: #dc2626;
}

[data-theme="dark"] .comparison-icon.negative {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
}

.comparison-icon.positive {
    background: var(--accent-bg);
    color: var(--accent);
}

.comparison-platonic .comparison-item {
    color: var(--text-primary);
}

/* ============================================
   How It Works - Phase Cards
   ============================================ */
.how-it-works {
    background: var(--bg-primary);
}

.phases {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-9);
    margin-top: var(--space-9);
}

.phase {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: transform var(--duration-slow) var(--ease-out),
                box-shadow var(--duration-slow) var(--ease-out);
}

.phase:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-shadow-hover);
}

.phase-header {
    padding: var(--space-7);
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--card-bg) 100%);
}

.phase-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--gradient-accent);
    color: white;
    font-weight: 700;
    font-size: var(--text-sm);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
    box-shadow: var(--shadow-accent);
}

.phase-header h3 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-3);
    letter-spacing: var(--tracking-tight);
}

.phase-header p {
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

.phase-body {
    padding: var(--space-7);
}

.phase-features {
    list-style: none;
}

.phase-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    transition: padding-left var(--duration-fast) var(--ease-out);
}

.phase-features li:hover {
    padding-left: var(--space-2);
}

.phase-features li:last-child {
    margin-bottom: 0;
}

.phase-features li::before {
    content: "";
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    margin-top: 2px;
    background: var(--accent);
    mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='currentColor'%3E%3Cpath fill-rule='evenodd' d='M7.21 14.77a.75.75 0 01.02-1.06L11.168 10 7.23 6.29a.75.75 0 111.04-1.08l4.5 4.25a.75.75 0 010 1.08l-4.5 4.25a.75.75 0 01-1.06-.02z' clip-rule='evenodd'/%3E%3C/svg%3E");
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='currentColor'%3E%3Cpath fill-rule='evenodd' d='M7.21 14.77a.75.75 0 01.02-1.06L11.168 10 7.23 6.29a.75.75 0 111.04-1.08l4.5 4.25a.75.75 0 010 1.08l-4.5 4.25a.75.75 0 01-1.06-.02z' clip-rule='evenodd'/%3E%3C/svg%3E");
    mask-size: contain;
    -webkit-mask-size: contain;
}

.phase-image {
    margin-top: var(--space-6);
}

.phase-image img,
.phase-image video {
    width: 100%;
    max-height: 400px;
    object-fit: contain;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
}

/* ============================================
   Team Section
   ============================================ */
.team {
    background: var(--bg-primary);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    margin-top: var(--space-9);
}

.team-card {
    text-align: center;
    padding: var(--space-7);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
    transition: transform var(--duration-slow) var(--ease-out),
                box-shadow var(--duration-slow) var(--ease-out);
}

.team-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-shadow-hover);
}

/* Hover reveal gradient */
.team-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: transform var(--duration-slow) var(--ease-out);
}

.team-card:hover::after {
    transform: scaleX(1);
}

.team-photo {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-full);
    margin: 0 auto var(--space-5);
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-4xl);
    color: var(--text-muted);
    overflow: hidden;
    transition: transform var(--duration-slow) var(--ease-out);
}

.team-card:hover .team-photo {
    transform: scale(1.05);
}

.team-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-slow) var(--ease-out);
}

.team-card:hover .team-photo img {
    transform: scale(1.1);
}

.team-card h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-1);
    letter-spacing: var(--tracking-tight);
}

.team-card .role {
    font-size: var(--text-sm);
    color: var(--accent);
    margin-bottom: var(--space-3);
    font-weight: 500;
}

.team-card .bio {
    font-size: var(--text-sm);
    color: var(--text-muted);
    font-style: italic;
    line-height: var(--leading-relaxed);
}

.team-group-photo {
    margin-top: var(--space-9);
    text-align: center;
}

.team-group-photo img {
    max-width: 800px;
    width: 100%;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.team-credential {
    margin-top: var(--space-9);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
}

.credential-label {
    font-size: var(--text-sm);
    color: var(--text-muted);
    font-weight: 500;
    letter-spacing: var(--tracking-wide);
}

.team-credential img {
    max-width: 200px;
    height: auto;
    opacity: 0.7;
    transition: opacity var(--duration-normal) var(--ease-out);
}

.team-credential:hover img {
    opacity: 1;
}

/* ============================================
   Enterprise Section
   ============================================ */
.enterprise {
    background: var(--bg-secondary);
}

.enterprise-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
    margin-top: var(--space-9);
}

.enterprise-card {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-6);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    transition: transform var(--duration-slow) var(--ease-out),
                box-shadow var(--duration-slow) var(--ease-out);
}

.enterprise-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--card-shadow-hover);
}

.enterprise-icon {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--accent-bg) 0%, rgba(45, 212, 191, 0.2) 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
}

.enterprise-icon svg {
    width: 24px;
    height: 24px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.enterprise-card h3 {
    font-size: var(--text-base);
    margin-bottom: var(--space-2);
    letter-spacing: var(--tracking-tight);
}

.enterprise-card p {
    color: var(--text-secondary);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
}

/* ============================================
   PHASE 8: Contact Form & Footer
   ============================================ */
.contact {
    background: var(--bg-secondary);
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-form {
    margin-top: var(--space-9);
    text-align: left;
}

.form-group {
    margin-bottom: var(--space-6);
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--space-2);
    font-size: var(--text-sm);
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-4);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    font-family: inherit;
    background: var(--card-bg);
    color: var(--text-primary);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.05);
    transition: border-color var(--duration-normal) var(--ease-out),
                box-shadow var(--duration-normal) var(--ease-out);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-bg), inset 0 1px 2px rgba(0, 0, 0, 0.05);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
}

.form-submit {
    text-align: center;
    margin-top: var(--space-7);
}

.form-submit .btn {
    padding: var(--space-4) var(--space-9);
    font-size: var(--text-base);
}

/* Footer */
.footer {
    padding: var(--space-9) 0;
    background: var(--bg-tertiary);
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer p {
    color: var(--text-muted);
    font-size: var(--text-sm);
}

.footer a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out);
}

.footer a:hover {
    color: var(--accent-light);
}

.footer-email {
    margin-top: 8px;
}

/* ============================================
   PHASE 7: Animations
   ============================================ */

/* Scroll-triggered fade-in */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--duration-slower) var(--ease-out),
                transform var(--duration-slower) var(--ease-out);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered grid animations */
.stagger-grid > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--duration-slower) var(--ease-out),
                transform var(--duration-slower) var(--ease-out);
}

.stagger-grid.visible > *:nth-child(1) { transition-delay: 0ms; }
.stagger-grid.visible > *:nth-child(2) { transition-delay: 100ms; }
.stagger-grid.visible > *:nth-child(3) { transition-delay: 200ms; }
.stagger-grid.visible > *:nth-child(4) { transition-delay: 300ms; }
.stagger-grid.visible > *:nth-child(5) { transition-delay: 400ms; }
.stagger-grid.visible > *:nth-child(6) { transition-delay: 500ms; }
.stagger-grid.visible > *:nth-child(7) { transition-delay: 600ms; }
.stagger-grid.visible > *:nth-child(8) { transition-delay: 700ms; }

.stagger-grid.visible > * {
    opacity: 1;
    transform: translateY(0);
}

/* Link underline slide animation */
.animated-link {
    position: relative;
    text-decoration: none;
}

.animated-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--duration-normal) var(--ease-out);
}

.animated-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .fade-in {
        opacity: 1;
        transform: none;
    }

    .stagger-grid > * {
        opacity: 1;
        transform: none;
    }

    html {
        scroll-behavior: auto;
    }

    /* Stop animated icons */
    .animated-clock .clock-hand-minute,
    .animated-clock .clock-hand-second,
    .flame-particle {
        animation: none !important;
    }
}

/* ============================================
   PHASE 9: Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
        text-align: center;
    }

    .hero-text h1 {
        font-size: var(--text-4xl);
    }

    .hero-text p {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
        max-width: 600px;
        margin: 0 auto;
    }

    .phases {
        grid-template-columns: 1fr;
    }

    .team-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .enterprise-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    section {
        padding: var(--space-10) 0;
    }

    .section-title {
        font-size: var(--text-3xl);
    }

    .hero {
        padding-top: 120px;
        min-height: auto;
    }

    .hero-text h1 {
        font-size: var(--text-3xl);
    }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .comparison-grid,
    .enterprise-grid {
        grid-template-columns: 1fr;
    }

    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .header-inner {
        height: 64px;
    }

    .logo-text {
        display: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-4);
    }

    .team-grid {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: var(--text-2xl);
    }

    .hero-text h1 {
        font-size: var(--text-2xl);
    }
}