/* ===================================
   Redscribe Landing Page Styles
   =================================== */

/* CSS Variables */
:root {
    --primary: #B83A3F;
    --primary-hover: #9E3338;
    --primary-light: rgba(184, 58, 63, 0.1);
    --background: #FAFAFA;
    --surface: #FFFFFF;
    --text: #1A1A1A;
    --text-muted: #666666;
    --text-light: #999999;
    --success: #059669;
    --border: #E5E5E5;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --radius: 12px;
    --radius-lg: 20px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--background);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

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

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--primary);
    color: white;
    border-radius: 8px;
    font-weight: 700;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition);
}

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

.nav-cta {
    background: var(--primary);
    color: white !important;
    padding: 10px 20px;
    border-radius: 8px;
    transition: var(--transition);
}

.nav-cta:hover {
    background: var(--primary-hover);
}

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

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

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 24px 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #fff 0%, #f8f8f8 50%, #fff 100%);
    z-index: -2;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(ellipse, var(--primary-light) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text {
    z-index: 1;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
}

.highlight {
    color: var(--primary);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
    z-index: 1;
}

.hero-mockup {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    transform: perspective(1000px) rotateY(-5deg);
    transition: var(--transition);
}

.hero-mockup:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.hero-mockup img {
    border-radius: var(--radius-lg);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.875rem;
    animation: bounce 2s infinite;
}

.hero-scroll-indicator svg {
    width: 24px;
    height: 24px;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ===================================
   Buttons
   =================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-icon {
    width: 20px;
    height: 20px;
}

.btn-icon-right {
    width: 20px;
    height: 20px;
    margin-left: 4px;
}

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

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

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

.btn-secondary:hover {
    border-color: var(--text-muted);
    transform: translateY(-2px);
}

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

.btn-light:hover {
    background: #f8f8f8;
    transform: translateY(-2px);
}

.btn-large {
    padding: 18px 36px;
    font-size: 1.1rem;
}

/* ===================================
   Section Styles
   =================================== */
section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   Features Section
   =================================== */
.features {
    background: var(--surface);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.feature-card {
    padding: 32px;
    background: var(--background);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    border-radius: var(--radius);
    margin-bottom: 20px;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    stroke: var(--primary);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-description {
    color: var(--text-muted);
    line-height: 1.7;
}

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

.steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    min-width: 250px;
    max-width: 300px;
    text-align: center;
    padding: 40px 30px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    position: relative;
}

.step-number {
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
}

.step-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    border-radius: 50%;
}

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

.step-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.step-description {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.step-connector {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
}

/* ===================================
   Screenshots Section
   =================================== */
.screenshots {
    background: var(--surface);
}

.screenshots-slider {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.screenshot-item {
    display: none;
    text-align: center;
}

.screenshot-item.active {
    display: block;
}

.screenshot-item img {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    margin: 0 auto;
}

.screenshot-caption {
    margin-top: 24px;
}

.screenshot-caption h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.screenshot-caption p {
    color: var(--text-muted);
}

.screenshot-nav {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 32px;
}

.screenshot-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    background: var(--border);
    cursor: pointer;
    transition: var(--transition);
}

.screenshot-dot.active,
.screenshot-dot:hover {
    background: var(--primary);
}

/* ===================================
   Free Credits Banner
   =================================== */
.free-credits {
    background: linear-gradient(135deg, var(--primary) 0%, #8B2D31 100%);
    padding: 80px 0;
}

.credits-card {
    text-align: center;
    color: white;
    position: relative;
}

.credits-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.credits-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: 12px;
}

.credits-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 40px;
}

.credits-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 40px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.credit-stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 1rem;
    opacity: 0.8;
    margin-top: 8px;
}

.credit-divider {
    width: 1px;
    height: 60px;
    background: rgba(255, 255, 255, 0.3);
}

/* ===================================
   Download Section
   =================================== */
.download {
    background: var(--background);
}

.download-card {
    max-width: 500px;
    margin: 0 auto;
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.download-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.download-platform {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
}

.platform-icon {
    width: 32px;
    height: 32px;
    fill: var(--text);
}

.download-version {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.download-btn {
    width: 100%;
}

.download-requirements {
    max-width: 500px;
    margin: 40px auto 0;
    text-align: left;
}

.download-requirements h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-muted);
}

.download-requirements ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.download-requirements li {
    color: var(--text-muted);
    font-size: 0.95rem;
    padding-left: 20px;
    position: relative;
}

.download-requirements li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 600;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--text);
    color: white;
    padding: 60px 0;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
}

.footer-brand .logo-icon {
    background: var(--primary);
}

.footer-links {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
}

.footer-copy {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

.footer-copy a {
    color: rgba(255, 255, 255, 0.7);
}

.footer-copy a:hover {
    color: white;
}

/* ===================================
   Animations
   =================================== */
.animate-fade-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeUp 0.8s ease forwards;
}

.delay-1 { animation-delay: 0.2s; }
.delay-2 { animation-delay: 0.4s; }
.delay-3 { animation-delay: 0.6s; }

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger animation for feature cards */
.features-grid .feature-card:nth-child(1) { transition-delay: 0.1s; }
.features-grid .feature-card:nth-child(2) { transition-delay: 0.2s; }
.features-grid .feature-card:nth-child(3) { transition-delay: 0.3s; }
.features-grid .feature-card:nth-child(4) { transition-delay: 0.4s; }
.features-grid .feature-card:nth-child(5) { transition-delay: 0.5s; }
.features-grid .feature-card:nth-child(6) { transition-delay: 0.6s; }

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

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

    .hero-mockup {
        transform: none;
        max-width: 600px;
        margin: 0 auto;
    }

    .step-connector {
        display: none;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--surface);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-toggle {
        display: flex;
    }

    .hero {
        padding-top: 100px;
    }

    .hero-scroll-indicator {
        display: none;
    }

    section {
        padding: 60px 0;
    }

    .credits-stats {
        flex-direction: column;
        gap: 24px;
    }

    .credit-divider {
        width: 60px;
        height: 1px;
    }

    .download-info {
        flex-direction: column;
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

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

/* Disclaimer Section */
.disclaimer-section {
    padding: 60px 0;
    background: var(--background);
    border-top: 1px solid var(--border);
}

.disclaimer-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    padding: 32px;
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.disclaimer-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 16px;
}

.disclaimer-content p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.disclaimer-content ul {
    list-style: none;
    text-align: left;
    display: inline-block;
}

.disclaimer-content li {
    color: var(--text-muted);
    font-size: 0.9rem;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

.disclaimer-content li:last-child {
    border-bottom: none;
}

.disclaimer-content li strong {
    color: var(--text);
}