/* ==========================================
   DRIFT - Dream Journal Website Styles
   ========================================== */

/* CSS Variables */
:root {
    /* Primary Colors - Dreamy Purple Theme */
    --primary: #9B8AFB;
    --primary-light: #C4B5FD;
    --primary-dark: #7C6BDB;
    --secondary: #7DD3FC;
    --accent: #22D3EE;

    /* Backgrounds - Deep Night */
    --bg-primary: #0A0E14;
    --bg-secondary: #12181F;
    --bg-tertiary: #1A222B;
    --bg-card: #12181F;
    --bg-card-hover: #1A222B;

    /* Text Colors */
    --text-primary: #E8ECF0;
    --text-secondary: #A0AEBB;
    --text-muted: #5C6B7A;
    --text-light: #E8ECF0;

    /* Status Colors */
    --success: #34D399;
    --warning: #FBBF24;
    --error: #F87171;
    --lucid: #22D3EE;

    /* Mood Colors */
    --mood-joyful: #FCD34D;
    --mood-peaceful: #6EE7B7;
    --mood-anxious: #FDBA74;
    --mood-scary: #F87171;

    /* Typography */
    --font-display: 'Fraunces', serif;
    --font-body: 'DM Sans', sans-serif;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
    --space-3xl: 64px;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(155, 138, 251, 0.1);
    --shadow-md: 0 4px 16px rgba(155, 138, 251, 0.15);
    --shadow-lg: 0 8px 32px rgba(155, 138, 251, 0.2);
    --shadow-xl: 0 16px 48px rgba(155, 138, 251, 0.25);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Ambient Background */
.ambient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.ambient-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: ambientFloat 20s ease-in-out infinite;
}

.ambient-glow-1 {
    width: 600px;
    height: 600px;
    background: var(--primary);
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.ambient-glow-2 {
    width: 500px;
    height: 500px;
    background: var(--secondary);
    bottom: -150px;
    left: -100px;
    animation-delay: -7s;
}

.ambient-glow-3 {
    width: 400px;
    height: 400px;
    background: var(--accent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
    opacity: 0.2;
}

@keyframes ambientFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(-30px, -20px) scale(1.02); }
}

/* Grain Overlay */
.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1000;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 14, 20, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(155, 138, 251, 0.1);
}

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

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

.logo-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-md);
    font-size: 20px;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 600;
}

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

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.nav-cta {
    padding: var(--space-sm) var(--space-lg);
    background: var(--primary);
    color: var(--bg-primary);
    text-decoration: none;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

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

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

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(80px + var(--space-3xl)) var(--space-lg) var(--space-3xl);
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    background: rgba(155, 138, 251, 0.15);
    border: 1px solid rgba(155, 138, 251, 0.3);
    border-radius: var(--radius-full);
    color: var(--primary-light);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: var(--space-lg);
}

.badge-icon {
    font-size: 16px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(40px, 6vw, 64px);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

.hero-ctas {
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: var(--bg-primary);
}

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

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid rgba(155, 138, 251, 0.3);
}

.btn-secondary:hover {
    border-color: var(--primary);
    background: rgba(155, 138, 251, 0.1);
}

/* Hero Visual - Floating Cards */
.hero-visual {
    position: relative;
    height: 500px;
    perspective: 1000px;
}

.floating-card {
    position: absolute;
    background: var(--bg-card);
    border: 1px solid rgba(155, 138, 251, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    box-shadow: var(--shadow-lg);
    transition: transform 0.1s ease-out;
    animation: cardFloat 6s ease-in-out infinite;
}

.floating-card.card-1 {
    top: 10%;
    left: 10%;
    width: 220px;
    animation-delay: 0s;
}

.floating-card.card-2 {
    top: 35%;
    right: 5%;
    width: 200px;
    animation-delay: -2s;
}

.floating-card.card-3 {
    bottom: 15%;
    left: 20%;
    width: 210px;
    animation-delay: -4s;
}

@keyframes cardFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.card-icon {
    font-size: 20px;
}

.card-icon.lucid {
    color: var(--lucid);
}

.card-icon.pattern {
    color: var(--primary);
}

.card-title {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
}

.card-text {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.mood-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    background: rgba(252, 211, 77, 0.1);
    border-radius: var(--radius-sm);
    width: fit-content;
}

.mood-emoji {
    font-size: 14px;
}

.mood-label {
    font-size: 12px;
    color: var(--mood-joyful);
    font-weight: 500;
}

.lucid-meter {
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--space-xs);
}

.meter-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--lucid));
    border-radius: var(--radius-full);
}

.lucid-level {
    font-size: 12px;
    color: var(--lucid);
    font-weight: 500;
}

.pattern-text {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

.pattern-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background: rgba(155, 138, 251, 0.15);
    color: var(--primary-light);
    font-size: 11px;
    font-weight: 600;
    border-radius: var(--radius-sm);
}

/* Sections Common */
section {
    padding: var(--space-3xl) var(--space-lg);
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--space-3xl);
}

.section-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: rgba(155, 138, 251, 0.15);
    color: var(--primary-light);
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-md);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.section-description {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Features Section */
.features {
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid rgba(155, 138, 251, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    transition: all var(--transition-normal);
    opacity: 0;
    transform: translateY(30px);
}

.feature-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(155, 138, 251, 0.3);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(155, 138, 251, 0.2), rgba(125, 211, 252, 0.2));
    border-radius: var(--radius-md);
    font-size: 28px;
    margin-bottom: var(--space-md);
}

.feature-card h3 {
    font-family: var(--font-display);
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.feature-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

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

.steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.step-card {
    text-align: center;
    opacity: 0;
    transform: translateY(30px);
}

.step-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.step-number {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    color: var(--bg-primary);
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    border-radius: 50%;
    margin: 0 auto var(--space-lg);
}

.step-card h3 {
    font-family: var(--font-display);
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.step-card p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Stats Section */
.stats {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    padding: var(--space-2xl) var(--space-lg);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-xl);
}

.stat-item {
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
}

.stat-item.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.stat-value {
    display: block;
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 700;
    color: white;
    margin-bottom: var(--space-xs);
}

.stat-label {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
}

/* CTA Section */
.cta-section {
    background: var(--bg-secondary);
    text-align: center;
}

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

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.cta-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
}

.app-store-badge img {
    height: 54px;
    transition: transform var(--transition-fast);
}

.app-store-badge:hover img {
    transform: scale(1.05);
}

/* Footer */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid rgba(155, 138, 251, 0.1);
    padding: var(--space-3xl) var(--space-lg) var(--space-xl);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.footer-tagline {
    color: var(--text-secondary);
    font-size: 15px;
    max-width: 280px;
}

.footer-links h4 {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

.footer-links a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    margin-bottom: var(--space-sm);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-xl);
    border-top: 1px solid rgba(155, 138, 251, 0.1);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 14px;
}

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

.footer-legal a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    transition: color var(--transition-fast);
}

.footer-legal a:hover {
    color: var(--text-secondary);
}

.footer-legal .separator {
    color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        border-bottom: 1px solid rgba(155, 138, 251, 0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .nav-cta {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-description {
        margin: 0 auto var(--space-xl);
    }

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

    .hero-visual {
        display: none;
    }

    .features-grid,
    .steps-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-brand {
        margin-bottom: var(--space-lg);
    }

    .footer-logo {
        justify-content: center;
    }

    .footer-tagline {
        margin: 0 auto;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--space-md);
    }
}

/* Animation Delays for Staggered Effects */
.feature-card:nth-child(1) { transition-delay: 0s; }
.feature-card:nth-child(2) { transition-delay: 0.1s; }
.feature-card:nth-child(3) { transition-delay: 0.2s; }
.feature-card:nth-child(4) { transition-delay: 0.3s; }
.feature-card:nth-child(5) { transition-delay: 0.4s; }
.feature-card:nth-child(6) { transition-delay: 0.5s; }

.step-card:nth-child(1) { transition-delay: 0s; }
.step-card:nth-child(2) { transition-delay: 0.15s; }
.step-card:nth-child(3) { transition-delay: 0.3s; }

.stat-item:nth-child(1) { transition-delay: 0s; }
.stat-item:nth-child(2) { transition-delay: 0.1s; }
.stat-item:nth-child(3) { transition-delay: 0.2s; }
.stat-item:nth-child(4) { transition-delay: 0.3s; }

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* Selection */
::selection {
    background: var(--primary);
    color: white;
}