/* ========================================
   MoonyPanda - Premium Dark Theme Styles
   ======================================== */

:root {
    /* Color Palette - Blue Theme (matching app) */
    --primary-blue: #448AFF;
    --secondary-blue: #2979FF;
    --dark-bg: #0A1931;
    --darker-bg: #050810;
    --card-bg: rgba(15, 23, 42, 0.6);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #448AFF 0%, #2979FF 100%);
    --gradient-secondary: linear-gradient(135deg, #2979FF 0%, #1565C0 100%);

    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Navbar height (logo 48px + 2x1.25rem padding + 1px border) */
    --nav-height: 89px;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Animations */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

/* ========================================
   Reset & Base Styles
   ======================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

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

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ========================================
   Navigation
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 14, 26, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    background: rgba(10, 14, 26, 0.95);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 0;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo {
    height: 48px;
    width: auto;
    transition: var(--transition-smooth);
}

.logo:hover {
    transform: scale(1.05) rotate(5deg);
}

.brand-name {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-smooth);
}

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

.nav-links a:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-toggle span {
    width: 28px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    position: relative;
    min-height: calc(100vh - var(--nav-height));
    margin-top: var(--nav-height);
    overflow: hidden;
    background: var(--darker-bg);
}

.hero-video-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.hero-mute-btn {
    position: absolute;
    bottom: 28px;
    right: 28px;
    z-index: 5;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(5, 12, 25, 0.55);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.hero-mute-btn:hover {
    background: rgba(5, 12, 25, 0.85);
    box-shadow: 0 0 20px rgba(68, 138, 255, 0.4);
}

.hero-mute-btn .icon-sound-on {
    display: none;
}

.hero-mute-btn.sound-on .icon-sound-off {
    display: none;
}

.hero-mute-btn.sound-on .icon-sound-on {
    display: block;
}

.hero-replay-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 6;
    display: none;
    align-items: center;
    justify-content: center;
    width: 88px;
    height: 88px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.35);
    background: rgba(5, 12, 25, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: #FFFFFF;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.hero-replay-btn.visible {
    display: flex;
    animation: replayPop 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.hero-replay-btn:hover {
    background: rgba(5, 12, 25, 0.9);
    box-shadow: 0 0 40px rgba(68, 138, 255, 0.5);
    transform: translate(-50%, -50%) scale(1.08);
}

@keyframes replayPop {
    0% {
        transform: translate(-50%, -50%) scale(0.4);
        opacity: 0;
    }
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 1;
    }
}

/* Portrait video (9:16) -> screen fitted, letterboxed on desktop */
.hero.video-portrait .hero-video-container {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #000;
}

.hero.video-portrait .hero-video {
    object-fit: contain;
}

/* ========================================
   Intro Section (text below video)
   ======================================== */

.app-intro {
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.app-intro .container {
    max-width: 900px;
}

.app-intro .section-title {
    margin-bottom: 1.5rem;
}

.app-intro .section-subtitle {
    margin-bottom: 2.5rem;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition-smooth);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 10px 30px rgba(68, 138, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(68, 138, 255, 0.4);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* ========================================
   Features Section
   ======================================== */

.features {
    padding: var(--spacing-xl) 0;
    position: relative;
}

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

.section-title {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2.5rem;
    transition: var(--transition-smooth);
    cursor: pointer;
}

.feature-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 20px 40px rgba(68, 138, 255, 0.2);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: white;
}

.feature-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   How It Works Section
   ======================================== */

.how-it-works {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, transparent 0%, rgba(68, 138, 255, 0.05) 50%, transparent 100%);
}

.steps-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1000px;
    margin: 0 auto;
    gap: 2rem;
}

.step {
    flex: 1;
    text-align: center;
}

.step-number {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
}

.step-content h3 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.step-connector {
    width: 100px;
    height: 2px;
    background: var(--gradient-primary);
    flex-shrink: 0;
}

/* ========================================
   Download Section
   ======================================== */

.download {
    padding: var(--spacing-xl) 0;
    text-align: center;
    scroll-margin-top: 100px;
}

.download-content {
    max-width: 800px;
    margin: 0 auto;
}

.download-buttons {
    display: flex;
    gap: 2rem;
    justify-content: center;
    margin: 3rem 0 2rem;
    flex-wrap: wrap;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem 2.5rem;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition-smooth);
    min-width: 280px;
}

.download-btn:not(.disabled):hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 15px 40px rgba(68, 138, 255, 0.3);
}

.download-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    filter: grayscale(1);
}

.download-icon {
    font-size: 2rem;
}

.android-btn .download-icon {
    color: #3DDC84;
}

.ios-btn .download-icon {
    color: #007AFF;
}

.download-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

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

.download-platform {
    font-size: 1.25rem;
    font-weight: 600;
}

.download-note {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-top: 1rem;
}

/* ========================================
   Supported Devices
   ======================================== */

.devices {
    padding: 6rem 0;
}

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

.device-table {
    width: 640px;
    margin: 3rem auto 2rem;
    border-collapse: collapse;
    text-align: left;
    table-layout: fixed;
    background: #FFFFFF;
    border-radius: 14px;
    overflow: hidden;
}

.device-table td {
    padding: 0.5rem 0.75rem;
    vertical-align: middle;
    background: #FFFFFF;
}

.device-logo-cell {
    width: 245px;
    text-align: center;
    padding: 0.75rem;
}

.device-logo-cell a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100px;
    background: #FFFFFF;
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.device-logo-cell a:hover {
    transform: scale(1.03);
    box-shadow: 0 10px 30px rgba(68, 138, 255, 0.3);
}

.device-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 8px;
}

.device-info-cell {
    width: 245px;
    padding-left: 0.75rem;
}

.device-notes-cell {
    width: 150px;
    text-align: center;
}

.device-notes-cell .install-notes-btn {
    padding: 0.6rem 0.75rem;
    font-size: 0.85rem;
    white-space: normal;
    text-align: center;
}

.device-name {
    display: block;
    font-size: 1.15rem;
    font-weight: 600;
    color: #0A1931;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.device-name:hover {
    color: #1565C0;
}

.device-detail {
    display: block;
    font-size: 0.875rem;
    color: rgba(10, 25, 49, 0.7);
    margin-top: 0.3rem;
}

.device-notes-link {
    margin-top: 1rem;
}

.install-notes-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 2rem;
    background: var(--gradient-secondary);
    border: none;
    border-radius: 12px;
    color: #FFFFFF;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-family: var(--font-primary);
}

.install-notes-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(41, 121, 255, 0.35);
}

/* ========================================
   Installation Notes Modal
   ======================================== */

.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    background: rgba(5, 8, 16, 0.85);
    backdrop-filter: blur(8px);
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    max-width: 620px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--glass-border);
}

.modal-header h3 {
    font-size: 1.35rem;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.modal-close:hover {
    color: #FFFFFF;
}

.modal-body {
    padding: 1.5rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.install-device-head {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.install-device-head h4 {
    font-size: 1.1rem;
    font-weight: 600;
}

.install-logo {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: #FFFFFF;
    object-fit: contain;
    padding: 4px;
}

.install-steps {
    padding-left: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.install-steps li {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.install-steps li strong {
    color: var(--text-primary);
}

.modal-footer {
    padding: 1.25rem 2rem;
    border-top: 1px solid var(--glass-border);
    text-align: right;
}

.modal-done-btn {
    padding: 0.7rem 2rem;
    background: var(--gradient-secondary);
    border: none;
    border-radius: 10px;
    color: #FFFFFF;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-family: var(--font-primary);
}

.modal-done-btn:hover {
    opacity: 0.9;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    background: var(--darker-bg);
    border-top: 1px solid var(--glass-border);
    padding: 2.5rem 0 1.5rem;
    margin-top: 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-logo {
    height: 48px;
    width: auto;
}

.footer-tagline {
    color: var(--text-secondary);
    font-size: 1rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-column a {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    margin-bottom: 0.75rem;
    transition: var(--transition-smooth);
}

.footer-column a:hover {
    color: var(--text-primary);
    transform: translateX(4px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
    color: var(--text-muted);
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 1024px) {
    .cta-buttons {
        justify-content: center;
    }

    .steps-container {
        flex-direction: column;
    }

    .step-connector {
        width: 2px;
        height: 60px;
    }
}

@keyframes fadeInText {
    0% {
        opacity: 0;
        transform: translateY(-10px) scale(0.95);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .nav-links.active {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        padding: 1.5rem 2rem;
        gap: 1.5rem;
        background: rgba(10, 14, 26, 0.97);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--glass-border);
        box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    }

    .mobile-menu-toggle {
        display: flex;
        transition: var(--transition-smooth);
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

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

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    /* 16:9 video on narrow screens: fit whole frame instead of cropping */
    .hero.video-landscape {
        min-height: 0;
    }

    .hero.video-landscape .hero-video-container {
        position: relative;
        width: 100%;
        height: auto;
        aspect-ratio: 16 / 9;
    }

    .section-title {
        font-size: 2rem;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .container {
        padding: 0 1.2rem;
    }
}

@media (max-width: 480px) {
    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* ========================================
   Utility Classes
   ======================================== */

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}