/* 1987 - RinkSync Coach - Dark Hockey Theme */
/* Design System: Tech/Gaming with Primer CSS base */
/* Color Palette: Ice blue, cyan, dark navy with neon accents */

:root {
    /* Primary colors - Ice hockey inspired */
    --ice-blue: #7dd3fc;
    --cyan-glow: #22d3ee;
    --deep-navy: #0f172a;
    --dark-surface: #1e293b;
    --card-surface: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --accent-orange: #f59e0b;
    --accent-cyan: #06b6d4;
    --success-green: #10b981;
    --error-red: #ef4444;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;

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

    /* Shadows */
    --shadow-glow: 0 0 20px rgba(34, 211, 238, 0.3);
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-button: 0 4px 15px rgba(34, 211, 238, 0.4);
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    background: linear-gradient(135deg, var(--deep-navy) 0%, #1a2744 50%, var(--deep-navy) 100%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--space-md);
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    background: linear-gradient(135deg, var(--ice-blue), var(--cyan-glow));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    color: var(--text-primary);
}

h3 {
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    color: var(--ice-blue);
}

p {
    color: var(--text-secondary);
    margin-bottom: var(--space-sm);
}

a {
    color: var(--cyan-glow);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--ice-blue);
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(125, 211, 252, 0.1);
    z-index: 1000;
    padding: var(--space-sm) 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-brand .logo-icon {
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    gap: var(--space-lg);
    list-style: none;
}

.nav-menu a {
    color: var(--text-secondary);
    font-weight: 500;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--cyan-glow);
    background: rgba(34, 211, 238, 0.1);
}

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

.nav-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    padding: calc(80px + var(--space-2xl)) 0 var(--space-2xl);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.hero-content {
    text-align: left;
}

.hero-content h1 {
    margin-bottom: var(--space-md);
}

.hero-content .tagline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

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

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Device Mockup */
.device-mockup {
    position: relative;
    max-width: 280px;
    margin: 0 auto;
}

.device-frame {
    position: relative;
    background: linear-gradient(145deg, #2d3748, #1a202c);
    border-radius: 36px;
    padding: 12px;
    box-shadow: var(--shadow-glow), var(--shadow-card);
}

.device-frame::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 24px;
    background: #1a202c;
    border-radius: 12px;
    z-index: 10;
}

.device-frame img {
    width: 100%;
    height: auto;
    border-radius: 24px;
    display: block;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--cyan-glow), var(--ice-blue));
    color: var(--deep-navy);
    box-shadow: var(--shadow-button);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(34, 211, 238, 0.5);
    color: var(--deep-navy);
}

.btn-secondary {
    background: transparent;
    color: var(--cyan-glow);
    border: 2px solid var(--cyan-glow);
}

.btn-secondary:hover {
    background: rgba(34, 211, 238, 0.1);
    color: var(--ice-blue);
    border-color: var(--ice-blue);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent-orange), #fbbf24);
    color: var(--deep-navy);
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(245, 158, 11, 0.4);
    color: var(--deep-navy);
}

/* Section Styling */
.section {
    padding: var(--space-2xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
}

.section-header p {
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.feature-card {
    background: var(--dark-surface);
    border: 1px solid rgba(125, 211, 252, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: rgba(34, 211, 238, 0.3);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.2), rgba(125, 211, 252, 0.1));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
}

.feature-card h3 {
    margin-bottom: var(--space-sm);
}

.feature-card p {
    text-align: left;
}

/* Screenshots Section */
.screenshots-section {
    background: var(--dark-surface);
    padding: var(--space-2xl) 0;
    max-height: 500px;
    overflow: hidden;
}

.screenshot-carousel {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    height: 350px;
}

.carousel-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    overflow: hidden;
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease;
    height: 100%;
    align-items: center;
}

.carousel-slide {
    flex: 0 0 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 var(--space-md);
}

.screenshot-device {
    position: relative;
    max-width: 200px;
    cursor: pointer;
}

.screenshot-device img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: var(--shadow-card);
    transition: all 0.3s ease;
    filter: blur(0);
}

.screenshot-device img.loading {
    filter: blur(5px);
}

.screenshot-device:hover img {
    transform: scale(1.02);
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    background: var(--card-surface);
    border: 2px solid var(--cyan-glow);
    border-radius: 50%;
    color: var(--cyan-glow);
    font-size: 1.25rem;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-btn:hover {
    background: var(--cyan-glow);
    color: var(--deep-navy);
}

.carousel-btn.prev {
    left: 0;
}

.carousel-btn.next {
    right: 0;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: var(--space-xs);
    margin-top: var(--space-md);
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--card-surface);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.carousel-dot.active {
    background: var(--cyan-glow);
    box-shadow: 0 0 10px var(--cyan-glow);
}

/* Lightbox */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: var(--space-lg);
}

.lightbox.active {
    display: flex;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    border-radius: var(--radius-md);
}

.lightbox-close {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    width: 48px;
    height: 48px;
    background: var(--card-surface);
    border: 2px solid var(--cyan-glow);
    border-radius: 50%;
    color: var(--cyan-glow);
    font-size: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.lightbox-close:hover {
    background: var(--cyan-glow);
    color: var(--deep-navy);
}

/* Alternating Content Blocks */
.content-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
    margin-bottom: var(--space-2xl);
}

.content-block:nth-child(even) {
    direction: rtl;
}

.content-block:nth-child(even) > * {
    direction: ltr;
}

.content-block-text {
    text-align: left;
}

.content-block-text h3 {
    margin-bottom: var(--space-md);
}

.content-block-text ul {
    list-style: none;
    margin-top: var(--space-md);
}

.content-block-text li {
    padding: var(--space-xs) 0;
    padding-left: var(--space-lg);
    position: relative;
    color: var(--text-secondary);
}

.content-block-text li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--cyan-glow);
}

.content-block-image {
    display: flex;
    justify-content: center;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.1), rgba(125, 211, 252, 0.05));
    border-top: 1px solid rgba(125, 211, 252, 0.1);
    border-bottom: 1px solid rgba(125, 211, 252, 0.1);
    text-align: center;
    padding: var(--space-2xl) 0;
}

.cta-section h2 {
    margin-bottom: var(--space-sm);
}

.cta-section p {
    margin-bottom: var(--space-lg);
}

/* Footer */
.footer {
    background: var(--dark-surface);
    border-top: 1px solid rgba(125, 211, 252, 0.1);
    padding: var(--space-2xl) 0 var(--space-lg);
}

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

.footer-brand h3 {
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.footer-brand p {
    font-size: 0.9rem;
}

.footer-links h4 {
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: var(--space-md);
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--space-xs);
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: var(--cyan-glow);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(125, 211, 252, 0.1);
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Privacy & Terms Pages */
.legal-page {
    padding-top: calc(80px + var(--space-2xl));
    padding-bottom: var(--space-2xl);
    min-height: 100vh;
}

.legal-content {
    max-width: 800px;
    margin: 0 auto;
    background: var(--dark-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    border: 1px solid rgba(125, 211, 252, 0.1);
}

.legal-content h1 {
    margin-bottom: var(--space-lg);
    text-align: center;
}

.legal-content h2 {
    font-size: 1.5rem;
    color: var(--ice-blue);
    margin-top: var(--space-xl);
    margin-bottom: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid rgba(125, 211, 252, 0.1);
}

.legal-content h2:first-of-type {
    border-top: none;
    padding-top: 0;
}

.legal-content p {
    text-align: left;
    margin-bottom: var(--space-md);
}

.legal-content ul {
    list-style: disc;
    margin-left: var(--space-lg);
    margin-bottom: var(--space-md);
}

.legal-content li {
    color: var(--text-secondary);
    margin-bottom: var(--space-xs);
    text-align: left;
}

.legal-content a {
    color: var(--cyan-glow);
}

.last-updated {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--space-lg);
}

/* Contact Page */
.contact-page {
    padding-top: calc(80px + var(--space-2xl));
    padding-bottom: var(--space-2xl);
    min-height: 100vh;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--space-2xl);
    align-items: start;
}

.contact-info {
    background: var(--dark-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    border: 1px solid rgba(125, 211, 252, 0.1);
}

.contact-info h2 {
    margin-bottom: var(--space-md);
}

.contact-info p {
    text-align: left;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

.contact-item-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.2), rgba(125, 211, 252, 0.1));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-item-text h4 {
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
    font-size: 1rem;
}

.contact-item-text p {
    font-size: 0.9rem;
    margin: 0;
}

.contact-form-container {
    background: var(--dark-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    border: 1px solid rgba(125, 211, 252, 0.1);
}

.contact-form-container h2 {
    margin-bottom: var(--space-lg);
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: var(--space-xs);
    text-align: left;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--space-sm);
    background: var(--card-surface);
    border: 1px solid rgba(125, 211, 252, 0.2);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--cyan-glow);
    box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.1);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.form-group input[type="file"] {
    padding: var(--space-sm);
    cursor: pointer;
}

.form-group input[type="file"]::file-selector-button {
    background: var(--cyan-glow);
    color: var(--deep-navy);
    border: none;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    margin-right: var(--space-sm);
    font-weight: 500;
}

.form-submit {
    width: 100%;
    padding: var(--space-md);
    font-size: 1.1rem;
}

.form-message {
    margin-top: var(--space-md);
    padding: var(--space-md);
    border-radius: var(--radius-sm);
    text-align: center;
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success-green);
    color: var(--success-green);
}

.form-message.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error-red);
    color: var(--error-red);
}

/* Privacy Accept Button (Flutter Integration) */
.privacy-accept-container {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.98);
    backdrop-filter: blur(10px);
    padding: var(--space-md);
    border-top: 2px solid var(--cyan-glow);
    z-index: 9999;
    display: none;
}

.privacy-accept-container.visible {
    display: block;
}

.privacy-accept-btn {
    display: block;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    padding: var(--space-md) var(--space-xl);
    background: linear-gradient(135deg, var(--accent-orange), #fbbf24);
    color: var(--deep-navy);
    font-size: 1.25rem;
    font-weight: 700;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-align: center;
    transition: all 0.3s ease;
}

.privacy-accept-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(245, 158, 11, 0.5);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content {
        text-align: center;
    }

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

    .hero-image {
        order: -1;
    }

    .device-mockup {
        max-width: 220px;
    }

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

    .content-block:nth-child(even) {
        direction: ltr;
    }

    .content-block-text {
        text-align: left;
    }

    .content-block-image {
        order: -1;
    }

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

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.98);
        flex-direction: column;
        padding: var(--space-md);
        gap: var(--space-sm);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        border-bottom: 1px solid rgba(125, 211, 252, 0.1);
    }

    .nav-menu.active {
        transform: translateY(0);
    }

    .nav-toggle {
        display: flex;
    }

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

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

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

    .hero {
        min-height: auto;
        padding-top: calc(70px + var(--space-xl));
    }

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

    .btn {
        width: 100%;
        max-width: 280px;
    }

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

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

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

    .screenshots-section {
        max-height: 400px;
    }

    .screenshot-carousel {
        height: 300px;
    }

    .screenshot-device {
        max-width: 160px;
    }

    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .legal-content {
        padding: var(--space-lg);
        margin: 0 var(--space-sm);
    }

    .contact-info,
    .contact-form-container {
        padding: var(--space-lg);
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .container {
        padding: 0 var(--space-sm);
    }

    .device-mockup {
        max-width: 180px;
    }

    .screenshot-device {
        max-width: 140px;
    }

    .carousel-btn {
        width: 36px;
        height: 36px;
    }
}

/* Orientation changes */
@media (orientation: landscape) and (max-height: 500px) {
    .hero {
        min-height: auto;
        padding: calc(70px + var(--space-md)) 0 var(--space-md);
    }

    .device-mockup {
        max-width: 150px;
    }

    .screenshots-section {
        max-height: 300px;
    }

    .screenshot-carousel {
        height: 250px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(34, 211, 238, 0.3);
    }
    50% {
        box-shadow: 0 0 40px rgba(34, 211, 238, 0.5);
    }
}

.animate-fade-in {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-glow {
    animation: glow 2s ease-in-out infinite;
}

/* Utility classes */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.mt-lg {
    margin-top: var(--space-lg);
}

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