/* IceLine Tracker - Dark Tech Theme */
/* Framework: Primer CSS base with custom dark hockey theme */

:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --bg-card: #1c2128;
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent-red: #c9243f;
    --accent-red-hover: #e02a47;
    --accent-cyan: #58a6ff;
    --accent-green: #3fb950;
    --border-color: #30363d;
    --border-light: #21262d;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
    background-color: var(--bg-primary);
    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: 1rem;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

a {
    color: var(--accent-cyan);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--text-primary);
    text-decoration: underline;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.nav {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 0 20px;
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
    gap: 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-brand:hover {
    text-decoration: none;
    color: var(--accent-red);
}

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

.nav-links {
    display: flex;
    gap: 8px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.nav-links a {
    color: var(--text-secondary);
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    font-size: 0.9rem;
    white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    text-decoration: none;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 50%, var(--bg-secondary) 100%);
    padding: 80px 20px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(201, 36, 63, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(88, 166, 255, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

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

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

.hero-text h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text .tagline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

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

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

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

.device-frame {
    background: linear-gradient(145deg, #2d333b 0%, #1c2128 100%);
    border-radius: 36px;
    padding: 12px;
    box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255,255,255,0.05);
    border: 1px solid var(--border-color);
}

.device-screen {
    border-radius: 28px;
    overflow: hidden;
    background: #000;
}

.device-screen img {
    width: 100%;
    height: auto;
    display: block;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background: var(--accent-red);
    color: white;
    box-shadow: 0 4px 14px rgba(201, 36, 63, 0.4);
}

.btn-primary:hover {
    background: var(--accent-red-hover);
    color: white;
    text-decoration: none;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(201, 36, 63, 0.5);
}

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

.btn-secondary:hover {
    background: var(--border-color);
    color: white;
    text-decoration: none;
    transform: translateY(-2px);
}

/* Feature Cards */
.features {
    padding: 80px 20px;
    background: var(--bg-primary);
}

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

.features-header h2 {
    margin-bottom: 1rem;
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--accent-red);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--accent-red) 0%, #e02a47 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 0.95rem;
    margin-bottom: 0;
    text-align: left;
}

/* Screenshots Section */
.screenshots {
    padding: 80px 20px;
    background: var(--bg-secondary);
    max-height: 500px;
    overflow: hidden;
}

.screenshots-header {
    text-align: center;
    margin-bottom: 40px;
}

.screenshot-carousel {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    height: 320px;
}

.carousel-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    height: 100%;
}

.carousel-slide {
    display: none;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.5s ease;
}

.carousel-slide.active {
    display: flex;
}

@keyframes fadeIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.carousel-device {
    max-width: 200px;
}

.carousel-device .device-frame {
    padding: 8px;
    border-radius: 28px;
}

.carousel-device .device-screen {
    border-radius: 22px;
}

.carousel-device .device-screen img {
    max-height: 280px;
    object-fit: contain;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.carousel-btn:hover {
    background: var(--accent-red);
    border-color: var(--accent-red);
}

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

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.carousel-dot.active {
    background: var(--accent-red);
    transform: scale(1.2);
}

/* CTA Section */
.cta {
    padding: 80px 20px;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta h2 {
    margin-bottom: 1rem;
}

.cta p {
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 40px 20px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-links {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

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

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

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

/* Page Content */
.page-header {
    background: var(--bg-secondary);
    padding: 60px 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
    margin-bottom: 0.5rem;
}

.page-header p {
    color: var(--text-muted);
    margin-bottom: 0;
}

.page-content {
    padding: 60px 20px;
    max-width: 800px;
    margin: 0 auto;
}

.page-content h2 {
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.page-content h2:first-child {
    margin-top: 0;
}

.page-content ul, .page-content ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.page-content li {
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.page-content a {
    color: var(--accent-cyan);
}

/* Contact Form */
.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.15);
}

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

.form-group input[type="file"] {
    padding: 12px;
    cursor: pointer;
}

.form-group input[type="file"]::file-selector-button {
    background: var(--accent-red);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    margin-right: 12px;
    font-weight: 500;
}

.form-submit {
    text-align: center;
}

.form-message {
    padding: 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    text-align: center;
}

.form-message.success {
    background: rgba(63, 185, 80, 0.15);
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
}

.form-message.error {
    background: rgba(201, 36, 63, 0.15);
    border: 1px solid var(--accent-red);
    color: var(--accent-red);
}

/* Privacy Accept Button */
.privacy-accept-container {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-top: 2px solid var(--accent-red);
    padding: 20px;
    z-index: 9999;
    display: none;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.5);
}

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

.privacy-accept-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.privacy-accept-content p {
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.btn-accept {
    background: var(--accent-red);
    color: white;
    padding: 16px 48px;
    font-size: 1.1rem;
    font-weight: 700;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(201, 36, 63, 0.4);
}

.btn-accept:hover {
    background: var(--accent-red-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(201, 36, 63, 0.5);
}

/* Lightbox */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.95);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.lightbox.show {
    display: flex;
}

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

.lightbox-content img {
    max-width: 100%;
    max-height: 80vh;
    border-radius: var(--radius-md);
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
    padding: 10px;
}

/* Responsive */
@media (max-width: 900px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

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

    .hero-text h1 {
        font-size: 2.2rem;
    }

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

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

@media (max-width: 768px) {
    .nav-content {
        flex-wrap: wrap;
        height: auto;
        padding: 12px 0;
        gap: 10px;
    }

    .nav-brand {
        font-size: 1.1rem;
    }

    .nav-links {
        width: 100%;
        justify-content: center;
        gap: 4px;
    }

    .nav-links a {
        padding: 6px 10px;
        font-size: 0.85rem;
    }

    h1 { font-size: 1.8rem; }
    h2 { font-size: 1.5rem; }

    .hero {
        padding: 50px 20px;
    }

    .hero-text h1 {
        font-size: 1.8rem;
    }

    .hero-text .tagline {
        font-size: 1rem;
    }

    .features, .screenshots, .cta {
        padding: 50px 20px;
    }

    .screenshots {
        max-height: 400px;
    }

    .screenshot-carousel {
        height: 260px;
    }

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

    .carousel-device .device-screen img {
        max-height: 220px;
    }

    .carousel-btn {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .contact-form {
        padding: 24px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .nav {
        padding: 0 12px;
    }

    .nav-brand {
        font-size: 1rem;
    }

    .nav-brand-icon {
        font-size: 1.2rem;
    }

    .nav-links a {
        padding: 5px 8px;
        font-size: 0.8rem;
    }

    .hero-text h1 {
        font-size: 1.5rem;
    }

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

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

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

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

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

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.mb-0 { margin-bottom: 0; }
.mt-2 { margin-top: 2rem; }