/* ===============================================
   SURVIVAL BRAIN - RESEND-INSPIRED DESIGN
   Pure Black Background + Strategic Orange
   Production-Ready v2.1
   =============================================== */

/* ===== CSS VARIABLES ===== */
:root {
    /* Backgrounds - Pure Black like Resend/Railway */
    --bg-primary: #000000;
    --bg-secondary: #0A0A0A;
    --bg-tertiary: #141414;
    
    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: #A0A0A0;
    --text-tertiary: #666666;
    
    /* Typography */
    --font-display: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Orange - Strategic Use Only */
    --orange-500: #FF6B35;
    --orange-600: #E85E2F;
    --orange-400: #FF8552;
    --orange-glow: rgba(255, 107, 53, 0.4);
    
    /* Accent */
    --accent-teal: #4DB8A8;
    --success: #4CAF50;
    --error: #EF5350;
    
    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-medium: rgba(255, 255, 255, 0.12);
    
    /* Glassmorphism */
    --glass-bg: rgba(10, 10, 10, 0.6);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.6);
    --shadow-glow-orange: 0 0 40px var(--orange-glow);
    
    /* Transitions */
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* 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: 2rem;
    --text-4xl: 2.5rem;
    --text-5xl: 3.5rem;
    --text-6xl: 4.5rem;
    
    /* Line Heights */
    --leading-tight: 1.2;
    --leading-normal: 1.5;
    --leading-relaxed: 1.7;
    
    /* Letter Spacing */
    --tracking-tight: -0.02em;
    --tracking-normal: 0;
    --tracking-wide: 0.025em;
    
    /* Spacing Scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    --space-32: 8rem;
    
    /* Section Padding - Resend-level generous */
    --section-padding: var(--space-32);
}

/* Desktop Typography Scaling */
@media (min-width: 768px) {
    :root {
        --text-5xl: 4.5rem;
        --text-6xl: 6rem;
    }
}

/* Mobile: Reduce section padding */
@media (max-width: 768px) {
    :root {
        --section-padding: var(--space-20);
    }
}

/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: var(--leading-normal);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== ACCESSIBILITY - SKIP LINK ===== */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--orange-500);
    color: white;
    padding: var(--space-2) var(--space-4);
    text-decoration: none;
    z-index: 10001;
}

.skip-link:focus {
    top: 0;
}

/* ===== SCROLL PROGRESS INDICATOR ===== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--orange-500);
    z-index: 10000;
    transition: width 0.1s ease-out;
}

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

.gradient-text {
    background: linear-gradient(135deg, var(--orange-500) 0%, var(--orange-400) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== NAVIGATION (GLASSMORPHISM) ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-subtle);
    transition: var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.85);
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--orange-500);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    z-index: 10;
    text-decoration: none;
}

/* Desktop: Show full logo (icon + text) */
.logo-icon-part {
    height: 62px;
    width: auto;
    display: block;
}

.logo-text-part {
    height: 50px;
    width: auto;
    display: block;
    margin-left: var(--space-3);
}

.logo-full {
    display: none; /* Hide combined logo, using separate parts */
}

/* Mobile: Hide full logo */
.logo-icon {
    height: 44px;
    width: 44px;
    display: none;
}

.logo img {
    transition: var(--transition-base);
}

.logo:hover img {
    transform: scale(1.05);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--text-sm);
    transition: var(--transition-base);
    position: relative;
}

.nav-links a:hover {
    color: var(--text-primary);
    text-shadow: 0 0 20px rgba(255, 107, 53, 0.6);
}

/* Orange underline - strategic use */
.nav-links a:not(.btn-primary)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--orange-500);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-links a:not(.btn-primary):hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
    z-index: 10;
    background: none;
    border: none;
    padding: var(--space-2);
}

.mobile-menu-toggle span {
    width: 28px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-base);
    border-radius: 2px;
}

/* ===== BUTTONS (Orange Strategic Use) ===== */
.btn-primary,
.btn-secondary,
.btn-large {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border-radius: 8px;
    font-weight: 600;
    font-size: var(--text-sm);
    text-decoration: none;
    transition: var(--transition-base);
    cursor: pointer;
    border: none;
    outline: none;
    position: relative;
    overflow: hidden;
}

/* Ripple effect styling */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: ripple-animation 0.6s ease-out;
    pointer-events: none;
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

.btn-primary {
    background: var(--orange-500);
    color: #000000;
    box-shadow: var(--shadow-md);
    font-weight: 700;
}

.btn-primary.nav-cta {
    color: #000000;
}

.btn-primary:hover {
    background: var(--orange-600);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-orange);
}

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

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Breathing animation for primary CTA */
.btn-primary {
    animation: breathe 4s ease-in-out infinite;
}

@keyframes breathe {
    0%, 100% {
        transform: scale(1);
        box-shadow: var(--shadow-md);
    }
    50% {
        transform: scale(1.02);
        box-shadow: 0 8px 40px var(--orange-glow);
    }
}

/* Pause animation on hover so hover effect takes over */
.btn-primary:hover {
    animation-play-state: paused;
}

.btn-secondary {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--orange-500);
    transform: translateY(-2px);
}

.btn-large {
    padding: var(--space-4) var(--space-10);
    font-size: var(--text-base);
    border-radius: 10px;
}

/* ===== HERO SECTION WITH 3D METALLIC BACKGROUND ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
    background: #151515; /* Slightly lighter than pure black for better blending */
}

/* Hero Background - 3D Metallic Logo Texture with Fallback */
.hero-background {
    position: absolute;
    inset: 0;
    z-index: -1;
    
    /* Animated gradient behind the metallic logo */
    background: radial-gradient(
        circle at 50% 50%, 
        rgba(255, 107, 53, 0.1) 0%, 
        rgba(77, 184, 168, 0.05) 50%,
        transparent 70%
    );
    background-size: 200% 200%;
    /* animation: gradient-pulse 20s ease infinite; */ /* REMOVED - No movement */
    
    /* Image overlay */
    background-image: url('../images/logo_3d_1024x1024.png');
    background-size: 73%;
    background-position: 50% 80%; /* Shifted down 30% */
    background-repeat: no-repeat;
    opacity: 0; /* Start hidden - video will reveal it */
    mix-blend-mode: lighten;
    pointer-events: none;
    transition: opacity 15s ease; /* Very slow fade-in: 15 seconds */
}

/* When video reveals it at 7.17 seconds */
.hero-background.revealed {
    opacity: 0.25;
}

@keyframes gradient-pulse {
    0%, 100% {
        background-position: 0% 50%;
        filter: brightness(1);
    }
    50% {
        background-position: 100% 50%;
        filter: brightness(1.1);
    }
}

/* Radial gradient overlay for focus */
.hero-background::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(
        circle at 50% 50%, 
        transparent 0%, 
        rgba(0, 0, 0, 0.6) 70%
    );
}

/* ===== HERO INTRO VIDEO ===== */
/* Video overlay - sits on top of hero-background, fades out when done */
.hero-intro-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center; /* Centered, no shifts */
    z-index: 0; /* Above hero-background (-1) but below hero-content (1) */
    opacity: 0.6; /* Semi-transparent to show background */
    mix-blend-mode: lighten; /* Match existing effect */
    pointer-events: none;
    transition: opacity 1s ease;
}

/* When video ends, this class fades it out */
.hero-intro-video.fade-out {
    opacity: 0;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    padding: var(--space-32) 0;
    position: relative;
    z-index: 1;
}

/* Hero text sequential reveal - hide everything initially */
.hero-title .title-line-1,
.hero-title .title-word-completely,
.hero-title .title-word-offline,
.hero-stats .stat,
.hero-stats .stat-separator,
.hero-buttons {
    opacity: 0;
}

/* Fade-in animation */
.reveal-text {
    animation: revealFadeIn 2s ease forwards;
}

.reveal-text-fast {
    animation: revealFadeIn 1s ease forwards;
}

@keyframes revealFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 8vw, 5.5rem);
    font-weight: 700;
    line-height: var(--leading-tight);
    margin-bottom: var(--space-10);
    letter-spacing: -0.03em; /* Tighter spacing */
}

.hero-description {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto var(--space-16);
    line-height: var(--leading-relaxed);
    font-weight: 400;
}

.hero-buttons {
    display: flex;
    gap: var(--space-4);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--space-20);
}

/* Hero Stats with Individual Stat Animations */
.hero-stats {
    display: flex;
    gap: var(--space-8);
    justify-content: center;
    align-items: center;
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
    margin-top: var(--space-16);
    margin-bottom: var(--space-16);
}

.stat {
    text-align: center;
}

.stat-separator {
    font-size: var(--text-2xl);
    color: var(--text-tertiary);
    font-weight: 300;
}

.stat-value {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--orange-500);
    margin-bottom: var(--space-3);
    line-height: 1;
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    font-weight: 500;
}

/* ===== SECTION BASE STYLES ===== */
section {
    padding: var(--section-padding) 0;
}

.section-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.section-title {
    font-size: clamp(2rem, 6vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--space-10);
    letter-spacing: var(--tracking-tight);
    line-height: var(--leading-tight);
}

.section-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin-bottom: var(--space-8);
    font-weight: 400;
}

/* ===== FEATURES SECTION - FLIP CARDS ===== */
.features-section {
    background: var(--bg-primary);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
    max-width: 1200px;
    margin: 0 auto;
}

@media (max-width: 968px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

.feature-card {
    height: 320px;
    perspective: 1000px;
}

.feature-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.feature-card:hover .feature-card-inner {
    transform: rotateY(180deg);
}

.feature-card-front,
.feature-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 16px;
    padding: var(--space-10);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.feature-card-front {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-subtle);
    transition: var(--transition-base);
}

.feature-card:hover .feature-card-front {
    border-color: var(--orange-500);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.4);
    transform: translateY(-8px);
}

.feature-card-back {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 2px solid var(--orange-500);
    transform: rotateY(180deg);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.4);
}

.feature-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-6);
    color: var(--orange-500);
    transition: var(--transition-base);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    animation: iconBounce 0.5s ease;
}

@keyframes iconBounce {
    0%, 100% { transform: scale(1.1) translateY(0); }
    50% { transform: scale(1.1) translateY(-8px); }
}

.feature-title {
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

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

/* ===== PROBLEM SECTION ===== */
.problem-section {
    background: var(--bg-primary);
}

.problem-scenarios p {
    font-size: var(--text-xl);
    color: var(--text-secondary);
    margin-bottom: var(--space-4);
}

.problem-scenarios .emphasis {
    font-size: var(--text-2xl);
    color: var(--text-primary);
    font-weight: 600;
    margin-top: var(--space-6);
}

/* Google logo inline styling */
.google-logo {
    display: inline-block;
    height: 1em;
    width: auto;
    vertical-align: -0.18em;
    margin: 0 0.1em;
}

/* ===== ATLAS SECTION ===== */
.atlas-section {
    background: var(--bg-secondary);
}

.atlas-description p {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin-bottom: var(--space-3);
}

/* ===== PDF SECTION ===== */
.pdfs-section {
    background: var(--bg-primary);
}

.pdf-problem p {
    font-size: var(--text-xl);
    color: var(--text-secondary);
    margin-bottom: var(--space-3);
}

.pdf-problem .emphasis {
    font-size: var(--text-2xl);
    color: var(--text-primary);
    font-weight: 900;
    margin-top: var(--space-6);
}

.pdf-problem .emphasis .gradient-text {
    font-weight: 900;
}

/* ===== DUAL SYSTEM SECTION WITH FLIP CARDS ===== */
.dual-system-section {
    background: var(--bg-secondary);
}

.system-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-8);
    margin: var(--space-12) 0;
}

.system-card {
    height: 360px;
    perspective: 1000px;
}

.system-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.system-card:hover .system-card-inner {
    transform: rotateY(180deg);
}

.system-card-front,
.system-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 16px;
    padding: var(--space-10);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.system-card-front {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-subtle);
    transition: var(--transition-base);
}

.system-card:hover .system-card-front {
    border-color: var(--orange-500);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.3);
}

.system-card-back {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 2px solid var(--orange-500);
    transform: rotateY(180deg);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.4);
}

.system-card-front h3 {
    font-size: var(--text-2xl);
    font-weight: 600;
    margin-bottom: var(--space-4);
}

.system-card-front p {
    color: var(--text-secondary);
    margin-bottom: var(--space-3);
}

.system-card-front .highlight {
    color: var(--orange-500);
    font-weight: 600;
}

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

.system-tagline {
    font-size: var(--text-xl);
    color: var(--text-secondary);
    margin-top: var(--space-8);
}

/* ===== HOW IT WORKS ===== */
.how-section {
    background: var(--bg-primary);
}

.steps-container {
    display: flex;
    flex-direction: column;
    gap: var(--space-12);
    margin-top: var(--space-12);
}

.step {
    display: flex;
    align-items: flex-start;
    gap: var(--space-6);
    text-align: left;
}

.step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: var(--orange-500);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-2xl);
    font-weight: 800;
    color: #000000;
}

.step-content p {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
}

/* ===== KNOWLEDGE PACKS - FLIP CARDS ===== */
.packs-section {
    background: var(--bg-secondary);
}

.packs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-8);
    margin: var(--space-12) 0;
}

.pack-card {
    height: 380px;
    perspective: 1000px;
}

.pack-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.pack-card:hover .pack-card-inner {
    transform: rotateY(180deg);
}

.pack-card-front,
.pack-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 16px;
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.pack-card-front {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-subtle);
    transition: var(--transition-base);
}

.pack-card:hover .pack-card-front {
    border-color: var(--orange-500);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.4);
}

.pack-card-back {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 2px solid var(--orange-500);
    transform: rotateY(180deg);
    box-shadow: 0 0 30px rgba(255, 107, 53, 0.4);
    padding: var(--space-6);
    overflow-y: auto;
}

.pack-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
    color: var(--orange-500);
    transition: var(--transition-base);
}

.pack-card:hover .pack-icon {
    transform: scale(1.1);
}

.pack-card-front h3 {
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.pack-badge {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: var(--orange-500);
    color: #000000;
    border-radius: 4px;
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    margin-top: var(--space-2);
}

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

/* Included badge styling for Grid-Down Essentials */
.pack-included .pack-badge {
    background: var(--orange-500);
    color: #000000;
}

.packs-more {
    margin-top: var(--space-8);
    color: var(--text-secondary);
    font-size: var(--text-lg);
}

/* ===== OUTAGES SECTION ===== */
.outages-section {
    background: var(--bg-primary);
}

.outage-scenarios p {
    font-size: var(--text-xl);
    color: var(--text-secondary);
    margin-bottom: var(--space-3);
}

.outage-scenarios .emphasis {
    font-size: var(--text-2xl);
    color: var(--text-primary);
    font-weight: 600;
    margin-top: var(--space-6);
}

/* ===== PRIVACY SECTION ===== */
.privacy-section {
    background: var(--bg-secondary);
}

.privacy-grid {
    margin-top: var(--space-12);
}

.privacy-statement {
    margin-bottom: var(--space-8);
}

.privacy-statement p {
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--text-primary);
}

.privacy-facts {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.privacy-facts p {
    font-size: var(--text-xl);
    color: var(--text-secondary);
}

/* ===== AUDIENCE SECTION ===== */
.audience-section {
    background: var(--bg-primary);
}

.audience-list {
    list-style: none;
    margin-top: var(--space-8);
}

.audience-list li {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--border-subtle);
}

.audience-list li:last-child {
    border-bottom: none;
}

/* ===== REQUIREMENTS SECTION ===== */
.requirements-section {
    background: var(--bg-secondary);
}

.requirements-list {
    list-style: none;
    margin-top: var(--space-8);
}

.requirements-list li {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--border-subtle);
}

.requirements-list li:last-child {
    border-bottom: none;
}

.requirements-note {
    margin-top: var(--space-8);
    font-size: var(--text-base);
    color: var(--text-tertiary);
    font-style: italic;
}

/* ===== WAITLIST SECTION ===== */
.waitlist-section {
    background: var(--bg-primary);
    text-align: center;
}

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

.cta-title {
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 700;
    margin-bottom: var(--space-12);
    letter-spacing: var(--tracking-tight);
}

/* Pricing Information */
.pricing-info {
    margin-bottom: var(--space-12);
    padding: var(--space-10) 0;
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.pricing-main {
    margin-bottom: var(--space-3);
}

.price {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    color: var(--orange-500);
    letter-spacing: var(--tracking-tight);
}

.price-label {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 600;
    color: var(--text-primary);
}

.pricing-details {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    margin: 0;
}

/* Early Supporter Section */
.early-supporter {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--orange-500);
    border-radius: 12px;
    padding: var(--space-8);
    margin-bottom: var(--space-12);
}

.supporter-title {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.supporter-description {
    font-size: var(--text-base);
    color: var(--text-secondary);
    line-height: var(--leading-relaxed);
    margin: 0;
}

.supporter-description strong {
    color: var(--orange-500);
    font-weight: 700;
    font-size: var(--text-xl);
}

.waitlist-form {
    margin-bottom: var(--space-12);
}

.form-group {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
    justify-content: center;
}

.waitlist-input {
    flex: 1;
    min-width: 280px;
    padding: var(--space-4) var(--space-6);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-medium);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: var(--text-base);
    transition: var(--transition-base);
    outline: none;
}

.waitlist-input:focus {
    border-color: var(--orange-500);
    box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.15),
                0 10px 20px rgba(255, 107, 53, 0.1);
    transform: translateY(-2px);
}

.waitlist-input::placeholder {
    color: var(--text-tertiary);
}

.cta-trust {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding-top: var(--space-8);
    border-top: 1px solid var(--border-subtle);
}

.trust-item {
    color: var(--text-secondary);
    font-size: var(--text-sm);
}

/* ===== FORM SUCCESS STATE ===== */
.form-success {
    text-align: center;
    padding: var(--space-16) 0;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.success-icon {
    margin-bottom: var(--space-6);
}

.success-icon circle {
    animation: scaleIn 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.success-icon path {
    stroke-dasharray: 50;
    stroke-dashoffset: 50;
    animation: drawCheck 0.5s 0.3s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes scaleIn {
    from { transform: scale(0); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

@keyframes drawCheck {
    to { stroke-dashoffset: 0; }
}

.form-success h3 {
    font-size: var(--text-2xl);
    font-weight: 600;
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.form-success p {
    color: var(--text-secondary);
    font-size: var(--text-base);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-secondary);
    padding: var(--space-16) 0 var(--space-8);
    border-top: 1px solid var(--border-subtle);
}

.footer-content {
    text-align: center;
    margin-bottom: var(--space-8);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.footer-logo-icon {
    height: 50px;
    width: auto;
}

.footer-logo-text {
    height: 40px;
    width: auto;
}

.footer-brand p {
    color: var(--text-secondary);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-8);
    border-top: 1px solid var(--border-subtle);
    color: var(--text-tertiary);
    font-size: var(--text-sm);
}

/* ===== ACCESSIBILITY ===== */
*:focus-visible {
    outline: 3px solid var(--orange-500);
    outline-offset: 2px;
    border-radius: 4px;
}

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

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 968px) {
    .hero-stats {
        gap: var(--space-8);
    }
    
    .system-grid {
        grid-template-columns: 1fr;
    }
    
    .system-card {
        height: 320px;
    }
    
    .packs-grid {
        grid-template-columns: 1fr;
    }
    
    .pack-card {
        height: 360px;
    }
    
    .steps-container {
        gap: var(--space-8);
    }
}

@media (max-width: 768px) {
    /* Mobile Navigation with Backdrop */
    .nav-links {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 100%;
        max-width: 300px;
        height: calc(100vh - 70px);
        background: var(--bg-secondary);
        flex-direction: column;
        padding: var(--space-8);
        gap: var(--space-4);
        transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: var(--shadow-lg);
    }
    
    /* Backdrop overlay */
    .nav-links::before {
        content: '';
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.3s ease;
        z-index: -1;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-links.active::before {
        opacity: 1;
        pointer-events: auto;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* Show icon logo on mobile, hide full logo */
    .logo-full,
    .logo-icon-part,
    .logo-text-part {
        display: none;
    }
    
    .logo-icon {
        display: block;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .form-group {
        flex-direction: column;
    }
    
    .waitlist-input {
        min-width: 100%;
    }
    
    .step {
        flex-direction: column;
        text-align: center;
    }
    
    .step-content {
        text-align: center;
    }
    
    /* Feature cards - single column on mobile */
    .feature-card {
        height: 280px;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        flex-direction: column;
        gap: var(--space-6);
    }
}