/* FaceGate Website Stylesheet */

/* --- Design Tokens & Variables --- */
:root {
    --bg-primary: #040306;
    --bg-secondary: #08070d;
    --bg-tertiary: #0e0d16;
    
    /* Accents (Minimalist white/silver with dark blue glow base) */
    --accent-blue-dark: #0d2556;
    --accent-blue-glow: rgba(20, 50, 160, 0.75);
    
    /* Glassmorphism */
    --bg-glass: rgba(255, 255, 255, 0.02);
    --bg-glass-hover: rgba(255, 255, 255, 0.04);
    --border-glass: rgba(255, 255, 255, 0.06);
    --border-glass-hover: rgba(255, 255, 255, 0.12);
    --shadow-glass: 0 20px 40px rgba(0, 0, 0, 0.6);
    
    /* Typography */
    --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #52525b;
    
    /* Structure */
    --container-width: 1200px;
    --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    overscroll-behavior: none;
}

body {
    overflow-x: hidden;
    min-height: 100vh;
    line-height: 1.6;
    overscroll-behavior: none;
}

/* Hide browser default scrollbars */
::-webkit-scrollbar {
    display: none;
    width: 0;
    height: 0;
}
html {
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE and Edge */
}

/* Top Progress Bar */
.scroll-progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: transparent;
    z-index: 1000;
    pointer-events: none;
}

.scroll-progress-bar {
    height: 100%;
    width: 0%;
    background: #ffffff;
    box-shadow: 0 0 8px #ffffff;
    transition: width 0.05s ease-out;
    will-change: width;
}

/* Utility Containers */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.small-container {
    max-width: 900px;
}

.section {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

/* --- Starfield Background & Nebulae --- */
#starfield {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -3;
    pointer-events: none;
}



/* --- Navigation Header --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    z-index: 100;
    background: transparent;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    border-bottom: none;
    transition: var(--transition-smooth);
}

.header.scrolled {
    height: 70px;
    background: transparent;
    border-bottom-color: transparent;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.logo:hover {
    transform: scale(1.02);
}

.logo-img {
    width: 38px;
    height: 38px;
    border-radius: 8px;
    box-shadow: none;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    gap: 6px;
}

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

.nav-link.github-link {
    background: rgba(255, 255, 255, 0.05);
    padding: 6px 12px;
    border-radius: 20px;
    border: 1px solid var(--border-glass);
}

.nav-link.github-link:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.icon-external {
    width: 14px;
    height: 14px;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 10px 24px;
    border-radius: 24px;
    font-weight: 500;
    font-size: 0.92rem;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
    white-space: nowrap;
}

.btn svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.btn-primary {
    background: #ffffff;
    color: #000000;
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.05);
}

.btn-primary:hover {
    transform: translateY(-2px);
    background: #f3f4f6;
    box-shadow: 0 8px 24px rgba(255, 255, 255, 0.15);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--border-glass);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.btn-nav {
    padding: 8px 18px;
    font-size: 0.85rem;
    border-radius: 18px;
}

.btn-full {
    width: 100%;
}

/* --- Mobile Menu Toggle --- */
.mobile-nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 101;
}

.mobile-nav-toggle .bar {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 130px;
    padding-bottom: 60px;
    position: relative;
    overflow: hidden;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.badge-wrapper {
    margin-bottom: 24px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(139, 92, 246, 0.08);
    border: 1px solid rgba(139, 92, 246, 0.25);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #c084fc;
}

.badge-pulse {
    width: 6px;
    height: 6px;
    background: #c084fc;
    border-radius: 50%;
    box-shadow: 0 0 8px #c084fc;
    animation: pulse 1.8s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.9); opacity: 0.6; }
    50% { transform: scale(1.3); opacity: 1; }
    100% { transform: scale(0.9); opacity: 0.6; }
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -1.5px;
    margin-bottom: 20px;
}

.gradient-text {
    color: #ffffff;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
    max-width: 600px;
    line-height: 1.6;
}

.hero-ctas {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
    width: 100%;
}

.icon-github {
    width: 18px;
    height: 18px;
}

/* App Icon Container Hero */
.hero-image-container {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.app-icon-glowing-wrapper {
    position: relative;
    width: 256px;
    height: 256px;
}

.hero-app-icon {
    width: 100%;
    height: 100%;
    object-fit: contain;
    position: relative;
    z-index: 2;
    border-radius: 52px;
}

.glow-layer {
    display: none;
}

@keyframes float {
    0% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-16px) rotate(1.5deg); }
    100% { transform: translateY(0px) rotate(0deg); }
}

@keyframes rotate-glow {
    0% { transform: rotate(0deg) scale(0.95); }
    50% { transform: rotate(180deg) scale(1.05); }
    100% { transform: rotate(360deg) scale(0.95); }
}

/* --- Terminal Block Component --- */
.terminal-block {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: var(--transition-smooth);
}

.terminal-divider {
    text-align: center;
    position: relative;
    margin: 4px 20px;
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.terminal-divider::before, .terminal-divider::after {
    content: "";
    position: absolute;
    top: 50%;
    width: 42%;
    height: 1px;
    background: var(--border-glass);
}

.terminal-divider::before { left: 0; }
.terminal-divider::after { right: 0; }

.terminal-block:hover {
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 45px rgba(255, 255, 255, 0.02);
}

.terminal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.02);
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-glass);
}

.terminal-dots {
    display: flex;
    gap: 8px;
}

.terminal-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.terminal-dots .dot.red { background-color: #ef4444; }
.terminal-dots .dot.yellow { background-color: #eab308; }
.terminal-dots .dot.green { background-color: #22c55e; }

.terminal-title {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: var(--font-body);
    font-weight: 500;
}

.terminal-body {
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.terminal-prompt {
    color: var(--accent-pink);
    font-family: monospace;
    font-weight: 700;
    user-select: none;
}

.terminal-code {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.85rem;
    color: #e5e7eb;
    white-space: nowrap;
    overflow-x: auto;
    flex-grow: 1;
    padding-bottom: 2px;
}

/* Hide scrollbar for terminals */
.terminal-code::-webkit-scrollbar {
    height: 4px;
}
.terminal-code::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border: none;
}

.btn-copy, .btn-copy-tab {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
    transition: var(--transition-smooth);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-copy:hover, .btn-copy-tab:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.btn-copy svg, .btn-copy-tab svg {
    width: 18px;
    height: 18px;
}

.hidden {
    display: none !important;
}

/* --- Section Title Header --- */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px auto;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.8px;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
}

/* --- Preview / Mac Mockup --- */
.mac-mockup {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    background: #181726;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.65), 0 0 100px rgba(20, 50, 160, 0.1);
}

.mac-header {
    background: #0f0e1a;
    padding: 12px 20px;
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.mac-controls {
    display: flex;
    gap: 8px;
}

.mac-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.mac-dot.red { background-color: #fc605c; }
.mac-dot.yellow { background-color: #fdbc40; }
.mac-dot.green { background-color: #34c749; }

.mac-address {
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.03);
    padding: 4px 16px;
    border-radius: 6px;
    font-family: var(--font-body);
    letter-spacing: 0.2px;
    border: 1px solid rgba(255, 255, 255, 0.03);
    width: fit-content;
    justify-self: center;
}

/* --- Screenshots Showcase Component --- */
.screenshots-showcase-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    margin-top: 20px;
    z-index: 10;
}

.showcase-content {
    text-align: center;
    margin-bottom: 30px;
    min-height: 80px;
}

.showcase-title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.showcase-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    max-width: 600px;
    margin: 0 auto;
}

.carousel-viewport {
    position: relative;
    width: 100vw;
    height: 50vh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
    -webkit-mask-image: linear-gradient(to right, transparent, black 15%, black 85%, transparent);
}

.carousel-wheel {
    position: absolute;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    will-change: transform;
}

.screenshot-card {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 480px;
    height: 300px;
    margin-left: -240px;
    margin-top: -150px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
    background: #0f0e1a;
    transition: filter 0.5s ease, border-color 0.5s ease;
    will-change: transform, opacity;
    transform-style: preserve-3d;
}

.screenshot-card.active {
    border-color: rgba(255, 255, 255, 0.3);
}

.screenshot-card.portrait {
    width: 240px;
    height: 360px;
    margin-left: -120px;
    margin-top: -180px;
}

.screenshot-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* --- Features Grid --- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    padding: 36px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.feature-card:hover {
    transform: translateY(-6px);
    background: var(--bg-glass-hover);
    border-color: var(--border-glass-hover);
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.45);
}

.feature-icon-wrapper {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    position: relative;
    background: rgba(255, 255, 255, 0.04);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.feature-icon-wrapper svg {
    width: 24px;
    height: 24px;
}

.feature-card-title {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 12px;
}

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

/* --- Security / Privacy Card --- */
.security-card {
    background: radial-gradient(circle at top right, rgba(13, 37, 86, 0.25), transparent 60%), var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 28px;
    padding: 60px;
    box-shadow: var(--shadow-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}

.security-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.security-badge {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    color: #ffffff;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.security-title {
    font-family: var(--font-heading);
    font-size: 2.3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    color: #ffffff;
}

.security-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 30px;
    line-height: 1.65;
}

.security-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.security-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.security-list li strong {
    color: var(--text-primary);
}

.icon-check-circle {
    width: 20px;
    height: 20px;
    color: #ffffff;
    flex-shrink: 0;
    margin-top: 2px;
}

/* Security Graphic Visual */
.security-graphic {
    display: flex;
    justify-content: center;
    align-items: center;
}

.shield-container {
    position: relative;
    width: 200px;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.shield-ring {
    position: absolute;
    border-radius: 50%;
    border: 1px dashed rgba(255, 255, 255, 0.08);
}

.shield-ring.ring-1 {
    width: 100%;
    height: 100%;
    animation: rotate-clockwise 30s linear infinite;
}
.shield-ring.ring-2 {
    width: 80%;
    height: 80%;
    border-style: solid;
    border-color: rgba(255, 255, 255, 0.03);
    animation: rotate-counter-clockwise 20s linear infinite;
}
.shield-ring.ring-3 {
    width: 60%;
    height: 60%;
    animation: rotate-clockwise 15s linear infinite;
}

.shield-icon-box {
    width: 80px;
    height: 80px;
    background: radial-gradient(circle, rgba(13, 37, 86, 0.4) 0%, rgba(255, 255, 255, 0.03) 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    box-shadow: 0 10px 30px rgba(13, 37, 86, 0.3);
}

.shield-icon {
    width: 38px;
    height: 38px;
    color: #ffffff;
}

@keyframes rotate-clockwise {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
@keyframes rotate-counter-clockwise {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(-360deg); }
}

/* --- Installation Section --- */
.install-tabs-wrapper {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--shadow-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.tab-headers {
    display: flex;
    justify-content: center;
    border-bottom: 1px solid var(--border-glass);
    margin-bottom: 30px;
    gap: 10px;
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 12px 20px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    color: #ffffff;
    border-bottom-color: #ffffff;
}

.tab-content {
    display: none;
    width: 100%;
}

.tab-content.active {
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: fade-in-tab 0.4s ease;
}

@keyframes fade-in-tab {
    0% { opacity: 0; transform: translateY(5px); }
    100% { opacity: 1; transform: translateY(0); }
}

.tab-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
    line-height: 1.6;
    text-align: center;
}

/* Manual installer details */
.manual-steps {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.steps-list {
    display: flex;
    flex-direction: column;
    max-width: 600px;
    width: 100%;
    margin: 0 auto;
    gap: 16px;
}

.step-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.step-number {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.step-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

.step-text code {
    background: rgba(255, 255, 255, 0.05);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    color: #ffffff;
}

/* --- Footer --- */
.footer {
    background-color: #030206;
    border-top: 1px solid var(--border-glass);
    padding: 80px 0 40px 0;
    position: relative;
    z-index: 1;
}

.footer-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-left {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
}

.footer-tagline {
    color: var(--text-secondary);
    max-width: 320px;
    font-size: 0.9rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.link-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.link-group h4 {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.link-group a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

.link-group a:hover {
    color: var(--text-primary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding-top: 30px;
}

.copyright {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.copyright a {
    color: var(--text-secondary);
    text-decoration: none;
}

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

.disclaimer {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* --- Scroll Animation Reveals --- */
.scroll-reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.8, 0.25, 1),
                transform 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.scroll-reveal.delay-1 {
    transition-delay: 0.15s;
}

.scroll-reveal.delay-2 {
    transition-delay: 0.3s;
}

/* --- Demo Section --- */
.demo-section {
    background: transparent;
}

.demo-video-wrapper {
    width: fit-content;
    max-width: 900px;
    margin: 0 auto;
    background: #181726;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.65), 0 0 100px rgba(20, 50, 160, 0.15);
    position: relative;
    padding: 3px;
    transition: var(--transition-smooth);
    display: flex;
}

.demo-video-wrapper:hover {
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.75), 0 0 100px rgba(20, 50, 160, 0.25);
}

.demo-video {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 13px;
}

/* --- Responsive Layout Breakpoints --- */

@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .security-grid {
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }
    
    /* Nav bar mobile menu */
    .mobile-nav-toggle {
        display: flex;
    }
    
    .nav {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        height: 0;
        background: var(--bg-primary);
        border-bottom: 1px solid transparent;
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: 0 24px;
        gap: 24px;
        overflow: hidden;
        transition: var(--transition-smooth);
        backdrop-filter: blur(16px);
    }
    
    .header.nav-active .nav {
        height: 240px;
        padding-top: 24px;
        border-bottom-color: var(--border-glass);
    }
    
    .header.nav-active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .header.nav-active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .header.nav-active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .btn-nav {
        display: none; /* Hide top bar button, merge into hero/footer CTA */
    }
    
    /* Hero layout */
    .hero {
        padding-top: 100px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .hero-ctas {
        justify-content: center;
    }
    
    .hero-app-icon {
        width: 192px;
        height: 192px;
    }
    
    /* Features & Security */
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .security-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .security-card {
        padding: 30px;
    }
    
    .security-graphic {
        order: -1; /* Display graphic above text on small screens */
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.2rem;
    }
    .hero-ctas {
        flex-direction: column;
        width: 100%;
    }
    .btn {
        width: 100%;
    }
    .tab-headers {
        flex-wrap: wrap;
    }
    .tab-btn {
        flex-grow: 1;
        text-align: center;
        padding: 8px 12px;
        font-size: 0.85rem;
    }
}

/* --- Horizontal Scroll Layout (Desktop & Tablet) --- */
@media (min-width: 769px) {
    main {
        height: 680vh; /* Hero (100) + Preview (100) + Demo (100) + Features (100) + Security (100) + Install (100) + Footer (80) = 680vh scrollable height */
        position: relative;
    }
    
    .horizontal-wrapper {
        position: sticky;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        overflow: hidden;
    }
    
    .horizontal-track {
        display: flex;
        flex-direction: row;
        width: max-content;
        height: 100%;
        will-change: transform;
    }
    
    /* Set viewport size for horizontal slides */
    .horizontal-track > section {
        width: 100vw;
        height: 100vh;
        flex-shrink: 0;
        display: flex;
        align-items: center;
        justify-content: center;
        padding: 0 40px;
        overflow: hidden;
        position: relative;
        box-sizing: border-box;
    }
    
    /* Hero section size adjustments for viewport */
    .hero-container {
        display: grid;
        grid-template-columns: 1.2fr 0.8fr;
        gap: 60px;
        align-items: center;
        max-height: 80vh;
    }
    
    .hero-title {
        font-size: 3rem;
        margin-bottom: 16px;
    }
    
    .hero-subtitle {
        font-size: 1.05rem;
        margin-bottom: 24px;
    }
    
    .hero-ctas {
        margin-bottom: 24px;
    }
    
    .preview-section {
        padding-top: 100px !important;
        box-sizing: border-box;
    }

    .preview-section .container {
        max-height: 90vh;
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }

    .demo-section {
        padding-top: 100px !important;
        box-sizing: border-box;
    }

    .demo-section .container {
        max-height: 90vh;
        width: 100%;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }

    .demo-section .section-header {
        margin-bottom: 24px;
    }

    .demo-video-wrapper {
        max-height: calc(85vh - 180px);
        width: fit-content;
        max-width: 100%;
    }

    .demo-video {
        max-height: calc(85vh - 186px); /* subtract wrapper padding */
        width: auto;
        max-width: 100%;
        object-fit: contain;
    }
    
    /* Features Horizontal timeline slide */
    .horizontal-track > .features-section {
        width: 100vw;
    }
    
    .features-section .container {
        max-width: none;
        width: 90%;
        height: 100%;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
        padding-top: 120px;
        box-sizing: border-box;
     }
    
    .features-section .section-header {
        margin-bottom: 20px;
    }
    
    .features-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        grid-template-rows: repeat(2, auto);
        gap: 16px;
        width: 100%;
        margin-top: 10px;
    }
    
    .feature-card {
        height: auto;
        padding: 16px 20px;
        display: flex;
        flex-direction: column;
        justify-content: flex-start;
    }
    
    .features-section .feature-icon-wrapper {
        width: 36px;
        height: 36px;
        border-radius: 8px;
        margin-bottom: 10px;
    }
    
    .features-section .feature-icon-wrapper svg {
        width: 18px;
        height: 18px;
    }
    
    .features-section .feature-card-title {
        font-size: 1.1rem;
        margin-bottom: 6px;
    }
    
    .features-section .feature-card-desc {
        font-size: 0.85rem;
        line-height: 1.5;
    }
    
    /* Security block sizing */
    .security-card {
        padding: 40px;
        max-height: 80vh;
        display: flex;
        align-items: center;
    }
    
    .security-title {
        font-size: 2rem;
        margin-bottom: 12px;
    }
    
    .security-desc {
        font-size: 0.95rem;
        margin-bottom: 20px;
    }
    
    .security-list {
        gap: 12px;
    }
    
    .install-section .container {
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
    
    .install-tabs-wrapper {
        padding: 20px 30px;
        margin-top: 15px;
    }
    
    .manual-steps {
        gap: 16px;
    }
    
    .steps-list {
        gap: 12px;
    }
    
    /* Horizontal Footer */
    .horizontal-track > .footer {
        width: 80vw;
        height: 100vh;
        flex-shrink: 0;
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        padding: 80px 60px 40px 60px;
        border-top: none;
        border-left: 1px solid var(--border-glass);
        box-sizing: border-box;
    }
    
    .footer-container {
        grid-template-columns: 1.2fr 0.8fr;
        gap: 40px;
        margin-bottom: 0;
    }
}

/* Hide mobile carousel controls on desktop */
.carousel-nav-btn, .carousel-dots {
    display: none;
}

/* --- Mobile View Standard Vertical Override --- */
@media (max-width: 768px) {
    main {
        height: auto !important;
    }
    
    .horizontal-wrapper {
        position: relative !important;
        width: 100% !important;
        height: auto !important;
        overflow: visible !important;
    }
    
    .horizontal-track {
        display: block !important;
        width: 100% !important;
        transform: none !important;
        transition: none !important;
    }
    
    .horizontal-track > section {
        width: 100% !important;
        height: auto !important;
        min-height: auto !important;
        padding: 80px 0 40px 0 !important;
        display: block !important;
        overflow: visible !important;
    }
    
    .horizontal-track > .features-section {
        width: 100% !important;
    }
    
    .features-grid {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: 20px !important;
        margin-top: 30px !important;
    }
    
    .feature-card {
        height: auto !important;
    }
    
    .horizontal-track > .footer {
        width: 100% !important;
        height: auto !important;
        border-left: none !important;
        border-top: 1px solid var(--border-glass) !important;
        padding: 60px 0 40px 0 !important;
        display: block !important;
    }

    /* Mobile Carousel Adjustments */
    .carousel-viewport {
        height: 320px !important;
        width: 100% !important;
        margin-top: 20px;
    }

    .screenshot-card {
        width: 260px !important;
        height: 162.5px !important;
        margin-left: -130px !important;
        margin-top: -81.25px !important;
    }

    .screenshot-card.portrait {
        width: 130px !important;
        height: 195px !important;
        margin-left: -65px !important;
        margin-top: -97.5px !important;
    }

    .carousel-nav-btn {
        display: flex;
        align-items: center;
        justify-content: center;
        position: absolute;
        top: 55%;
        transform: translateY(-50%);
        width: 38px;
        height: 38px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid rgba(255, 255, 255, 0.1);
        color: #ffffff;
        cursor: pointer;
        z-index: 150;
        transition: var(--transition-smooth);
        backdrop-filter: blur(8px);
        -webkit-backdrop-filter: blur(8px);
    }

    .carousel-nav-btn:hover {
        background: rgba(255, 255, 255, 0.08);
        border-color: rgba(255, 255, 255, 0.2);
    }

    .carousel-nav-btn.prev {
        left: 12px;
    }

    .carousel-nav-btn.next {
        right: 12px;
    }

    .carousel-nav-btn svg {
        width: 18px;
        height: 18px;
    }

    .carousel-dots {
        display: flex;
        justify-content: center;
        gap: 8px;
        margin-top: 20px;
        z-index: 120;
        position: relative;
    }

    .carousel-dot {
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.2);
        border: none;
        cursor: pointer;
        transition: var(--transition-smooth);
        padding: 0;
    }

    .carousel-dot.active {
        background: #ffffff;
        transform: scale(1.2);
        box-shadow: 0 0 8px #ffffff;
    }

    /* Refined Mobile Layout Enhancements */
    .nav {
        background: rgba(4, 3, 6, 0.85) !important;
        backdrop-filter: blur(20px) !important;
        -webkit-backdrop-filter: blur(20px) !important;
    }

    .screenshot-card {
        transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.4s ease, filter 0.4s ease, border-color 0.5s ease !important;
    }

    .feature-card {
        padding: 24px !important;
    }

    .terminal-block {
        max-width: 100% !important;
        width: 100% !important;
    }

    .terminal-code {
        font-size: 0.72rem !important;
        padding-bottom: 4px;
    }

    .terminal-body {
        padding: 12px 16px !important;
    }

    .hero-image-container {
        margin-top: 20px;
    }

    .app-icon-glowing-wrapper {
        width: 180px !important;
        height: 180px !important;
        margin: 0 auto;
    }

    .hero-app-icon {
        border-radius: 36px !important;
    }
}