/* ==========================================================================
   Compress Video - Official Marketing Landing Page Stylesheet
   Design Style: Apple Dark Pro (Sleek Dark, Electric Blue, Glassmorphic)
   ========================================================================== */

:root {
    --bg-main: #06080F;
    --bg-surface: #0B101D;
    --bg-card: rgba(17, 24, 39, 0.65);
    --bg-card-hover: rgba(24, 34, 54, 0.85);
    --bg-glass: rgba(11, 16, 29, 0.75);
    
    --accent-blue: #0A84FF;
    --accent-blue-glow: rgba(10, 132, 255, 0.35);
    --accent-cyan: #5AC8FA;
    --accent-gold: #FFD60A;
    --accent-green: #30D158;
    
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(10, 132, 255, 0.4);
    
    --text-primary: #FFFFFF;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 32px;
    
    --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Styles */
* {
    box-sizing: border-box;
}

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

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

/* Background Ambient Glows */
.ambient-glow {
    position: absolute;
    width: 650px;
    height: 650px;
    border-radius: 50%;
    filter: blur(140px);
    pointer-events: none;
    z-index: 0;
    opacity: 0.35;
}

.glow-top-left {
    top: -150px;
    left: -150px;
    background: radial-gradient(circle, var(--accent-blue) 0%, rgba(10, 132, 255, 0) 70%);
}

.glow-hero-center {
    top: 250px;
    right: 5%;
    background: radial-gradient(circle, #2563EB 0%, rgba(37, 99, 235, 0) 70%);
    opacity: 0.25;
}

.glow-features {
    top: 1400px;
    left: 10%;
    background: radial-gradient(circle, #1E40AF 0%, rgba(30, 64, 175, 0) 70%);
    opacity: 0.2;
}

/* Navigation Bar */
.navbar-custom {
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    padding: 14px 0;
    transition: var(--transition);
    z-index: 1030;
}

.navbar-custom.scrolled {
    background: rgba(6, 8, 15, 0.92);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    border-bottom-color: rgba(255, 255, 255, 0.12);
}

.brand-logo-img {
    width: 38px;
    height: 38px;
    border-radius: 9px;
    box-shadow: 0 4px 12px rgba(10, 132, 255, 0.3);
    object-fit: cover;
}

.brand-title {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.nav-link-custom {
    color: var(--text-secondary) !important;
    font-size: 0.95rem;
    font-weight: 500;
    margin: 0 12px;
    padding: 8px 0;
    position: relative;
    transition: var(--transition);
}

.nav-link-custom:hover {
    color: var(--text-primary) !important;
}

.nav-link-custom::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-blue);
    transition: var(--transition);
    border-radius: 2px;
}

.nav-link-custom:hover::after {
    width: 100%;
}

/* App Store Buttons */
.btn-appstore {
    background: #000000;
    color: #FFFFFF !important;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--radius-md);
    padding: 10px 22px;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.btn-appstore:hover {
    background: #111827;
    border-color: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(10, 132, 255, 0.3);
}

.btn-appstore i.fab {
    font-size: 26px;
    color: #FFFFFF;
}

.btn-appstore .btn-text-sub {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    line-height: 1;
}

.btn-appstore .btn-text-main {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.2;
}

.btn-glow-blue {
    background: linear-gradient(135deg, #0A84FF 0%, #0066CC 100%);
    border: none;
    box-shadow: 0 4px 25px var(--accent-blue-glow);
}

.btn-glow-blue:hover {
    background: linear-gradient(135deg, #2590FF 0%, #0A84FF 100%);
    box-shadow: 0 8px 35px rgba(10, 132, 255, 0.55);
}

/* Hero Section */
.hero-section {
    padding: 130px 0 80px 0;
    position: relative;
    z-index: 1;
}

.badge-pill-tech {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(10, 132, 255, 0.12);
    border: 1px solid rgba(10, 132, 255, 0.28);
    color: var(--accent-cyan);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 50px;
    margin-bottom: 22px;
}

.badge-pill-tech i {
    color: var(--accent-gold);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 20px;
}

.gradient-text-blue {
    background: linear-gradient(135deg, #FFFFFF 30%, #60A5FA 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 580px;
    line-height: 1.55;
}

.hero-badges-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 20px;
    margin-top: 36px;
}

.hero-feature-bullet {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.hero-feature-bullet i {
    color: var(--accent-green);
    font-size: 1rem;
}

/* iPhone Device Mockup with Video */
.iphone-frame-wrapper {
    position: relative;
    max-width: 320px;
    margin: 0 auto;
    perspective: 1000px;
}

.iphone-frame {
    position: relative;
    width: 100%;
    padding-top: 208%; /* iPhone 19.5:9 ratio */
    background: #1C1D21;
    border-radius: 50px;
    box-shadow: 
        0 0 0 3px #3A3B40,
        0 0 0 6px #121316,
        0 25px 60px rgba(0, 0, 0, 0.8),
        0 0 50px rgba(10, 132, 255, 0.15);
    overflow: hidden;
}

.iphone-dynamic-island {
    position: absolute;
    top: 14px;
    left: 50%;
    transform: translateX(-50%);
    width: 95px;
    height: 25px;
    background: #000000;
    border-radius: 20px;
    z-index: 10;
}

.iphone-screen-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 46px;
}

.iphone-floating-badge {
    position: absolute;
    bottom: 24px;
    left: -20px;
    background: rgba(13, 18, 31, 0.88);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    padding: 12px 18px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
    z-index: 15;
    animation: floatSlow 4s ease-in-out infinite;
}

.iphone-floating-badge-right {
    position: absolute;
    top: 40px;
    right: -25px;
    background: rgba(13, 18, 31, 0.88);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-md);
    padding: 10px 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
    z-index: 15;
    animation: floatSlow 4s ease-in-out infinite 2s;
}

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

/* Social Proof & Metrics Bar */
.metrics-strip {
    background: var(--bg-surface);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
    padding: 38px 0;
    margin-top: 40px;
    position: relative;
    z-index: 1;
}

.metric-item {
    text-align: center;
    padding: 10px;
}

.metric-number {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #FFFFFF 0%, #93C5FD 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 4px;
}

.metric-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Interactive Size Calculator Section */
.calculator-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    position: relative;
    overflow: hidden;
}

.calculator-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-cyan), var(--accent-gold));
}

.preset-selector-btn {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    padding: 12px 18px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.preset-selector-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

.preset-selector-btn.active {
    background: rgba(10, 132, 255, 0.15);
    border-color: var(--accent-blue);
    color: var(--text-primary);
}

.preset-selector-btn.active i {
    color: var(--accent-blue);
}

.custom-range-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.1);
    outline: none;
    transition: var(--transition);
}

.custom-range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--accent-blue);
    cursor: pointer;
    box-shadow: 0 0 14px var(--accent-blue-glow);
    border: 3px solid #FFFFFF;
}

.calc-result-box {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 28px;
    text-align: center;
    position: relative;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.calc-savings-badge {
    position: absolute;
    top: 14px;
    right: 14px;
    background: rgba(48, 209, 88, 0.15);
    border: 1px solid rgba(48, 209, 88, 0.3);
    color: var(--accent-green);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 30px;
}

/* Feature Cards */
.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    height: 100%;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}

.feature-icon-wrapper {
    width: 58px;
    height: 58px;
    border-radius: var(--radius-md);
    background: rgba(10, 132, 255, 0.12);
    border: 1px solid rgba(10, 132, 255, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 22px;
    color: var(--accent-blue);
    font-size: 1.5rem;
    transition: var(--transition);
}

.feature-card:hover .feature-icon-wrapper {
    background: var(--accent-blue);
    color: #FFFFFF;
    box-shadow: 0 0 25px var(--accent-blue-glow);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

/* Screenshot Showcase Carousel */
.screenshot-mockup-item {
    border-radius: 28px;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    border: 4px solid #1E232F;
    background: #0B0E14;
    transition: var(--transition);
}

.screenshot-mockup-item:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 25px 60px rgba(10, 132, 255, 0.25);
    border-color: var(--accent-blue);
}

.screenshot-mockup-item img {
    width: 100%;
    height: auto;
    display: block;
}

/* Privacy Callout Banner */
.privacy-banner {
    background: linear-gradient(135deg, rgba(11, 16, 29, 0.95) 0%, rgba(17, 24, 39, 0.95) 100%);
    border: 1px solid rgba(16, 185, 129, 0.25);
    border-radius: var(--radius-xl);
    padding: 48px;
    position: relative;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.5);
}

.shield-icon-badge {
    width: 72px;
    height: 72px;
    border-radius: 20px;
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #10B981;
    font-size: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

/* FAQ Accordion */
.faq-accordion .accordion-item {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md) !important;
    margin-bottom: 14px;
    overflow: hidden;
    transition: var(--transition);
}

.faq-accordion .accordion-item:hover {
    border-color: rgba(255, 255, 255, 0.16);
}

.faq-accordion .accordion-button {
    background: transparent;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.05rem;
    padding: 20px 24px;
    box-shadow: none !important;
}

.faq-accordion .accordion-button:not(.collapsed) {
    background: rgba(10, 132, 255, 0.08);
    color: var(--accent-blue);
}

.faq-accordion .accordion-button::after {
    filter: invert(1);
    transition: transform 0.25s ease;
}

.faq-accordion .accordion-button:not(.collapsed)::after {
    filter: invert(48%) sepia(85%) saturate(3000%) hue-rotate(195deg);
}

.faq-accordion .accordion-body {
    color: var(--text-secondary);
    padding: 0 24px 22px 24px;
    line-height: 1.7;
    font-size: 0.95rem;
}

/* Final CTA Section */
.cta-box-card {
    background: linear-gradient(135deg, #0D1629 0%, #0A1E45 100%);
    border: 1px solid rgba(10, 132, 255, 0.35);
    border-radius: var(--radius-xl);
    padding: 60px 40px;
    text-align: center;
    box-shadow: 0 25px 80px rgba(10, 132, 255, 0.25);
    position: relative;
    overflow: hidden;
}

/* Footer */
.footer-custom {
    background: #04050A;
    border-top: 1px solid var(--border-subtle);
    padding: 60px 0 30px 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--accent-blue);
}

/* Responsive adjustments */
@media (max-width: 991.98px) {
    .hero-title {
        font-size: 2.75rem;
    }
    .hero-section {
        padding: 100px 0 60px 0;
        text-align: center;
    }
    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }
    .hero-badges-row {
        justify-content: center;
    }
    .iphone-frame-wrapper {
        margin-top: 40px;
    }
    .calculator-card {
        padding: 24px;
    }
    .privacy-banner {
        padding: 30px;
    }
}

@media (max-width: 575.98px) {
    .hero-title {
        font-size: 2.1rem;
    }
    .metric-number {
        font-size: 1.8rem;
    }
    .btn-appstore {
        width: 100%;
        justify-content: center;
    }
    .calculator-card {
        padding: 20px 16px;
    }
}