/* CryptoPulse Alert - Tech/Gaming Dark Theme */
/* Design: Option E - Tech/Gaming with Primer CSS base */

:root {
    --primary-dark: #0a1929;
    --secondary-dark: #0d2137;
    --accent-gold: #F5D015;
    --accent-gold-hover: #ffd93d;
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --text-muted: #718096;
    --border-color: #1e3a5f;
    --card-bg: #0d2137;
    --success: #48bb78;
    --danger: #f56565;
    --gradient-start: #0a1929;
    --gradient-end: #1a365d;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 3vw, 1.75rem); }

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

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

a:hover {
    color: var(--accent-gold-hover);
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 25, 41, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 0.75rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
    flex-shrink: 0;
}

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

.navbar-menu {
    display: flex;
    gap: 1.5rem;
    list-style: none;
    flex-wrap: wrap;
    justify-content: center;
}

.navbar-menu a {
    color: var(--text-secondary);
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: color 0.3s ease;
    white-space: nowrap;
}

.navbar-menu a:hover,
.navbar-menu a.active {
    color: var(--accent-gold);
}

.navbar-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-gold);
    transition: width 0.3s ease;
}

.navbar-menu a:hover::after,
.navbar-menu a.active::after {
    width: 100%;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0 60px;
    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(245, 208, 21, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(30, 58, 95, 0.3) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    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 {
    margin-bottom: 1.5rem;
}

.hero-text h1 span {
    color: var(--accent-gold);
}

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

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.hero-device {
    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, #1a1a2e, #16213e);
    border-radius: 35px;
    padding: 12px;
    box-shadow:
        0 25px 50px rgba(0, 0, 0, 0.5),
        0 0 0 2px rgba(245, 208, 21, 0.2),
        inset 0 0 20px rgba(255, 255, 255, 0.05);
}

.device-frame::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 25px;
    background: #0a0a0f;
    border-radius: 0 0 15px 15px;
    z-index: 10;
}

.device-screen {
    border-radius: 25px;
    overflow: hidden;
    background: var(--primary-dark);
}

.device-screen img {
    width: 100%;
    height: auto;
    display: block;
    transition: filter 0.3s ease;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background: var(--accent-gold);
    color: var(--primary-dark);
}

.btn-primary:hover {
    background: var(--accent-gold-hover);
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(245, 208, 21, 0.3);
}

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

.btn-secondary:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
    transform: translateY(-2px);
}

/* Features Section */
.features {
    padding: 80px 0;
    position: relative;
}

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

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

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 30px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-gold);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-gold), #ffd93d);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: 1.25rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

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

/* Screenshots Section */
.screenshots {
    padding: 80px 0;
    max-height: 500px;
    overflow: visible;
}

.screenshot-carousel {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    height: 380px;
}

.carousel-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 350px;
}

.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;
    cursor: pointer;
}

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

.carousel-device .device-frame::before {
    width: 60px;
    height: 18px;
    top: 6px;
    border-radius: 0 0 10px 10px;
}

.carousel-device .device-screen {
    border-radius: 20px;
}

.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1.25rem;
    z-index: 10;
}

.carousel-nav:hover {
    background: var(--accent-gold);
    color: var(--primary-dark);
    border-color: var(--accent-gold);
}

.carousel-prev { left: 0; }
.carousel-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: all 0.3s ease;
}

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

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.lightbox.active {
    display: flex;
}

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

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    border-radius: 12px;
}

.lightbox-close {
    position: absolute;
    top: -40px;
    right: 0;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 2rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

.lightbox-close:hover {
    color: var(--accent-gold);
}

/* CTA Section */
.cta {
    padding: 80px 0;
    text-align: center;
    position: relative;
}

.cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(245, 208, 21, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
}

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

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

/* Footer */
.footer {
    background: rgba(10, 25, 41, 0.8);
    border-top: 1px solid var(--border-color);
    padding: 40px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

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

.footer-section p,
.footer-section a {
    color: var(--text-muted);
    font-size: 0.9rem;
    display: block;
    margin-bottom: 0.5rem;
}

.footer-section a:hover {
    color: var(--accent-gold);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

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

/* Page Header */
.page-header {
    padding: 120px 0 60px;
    text-align: center;
    position: relative;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 0%, rgba(245, 208, 21, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.page-header h1 {
    position: relative;
    z-index: 1;
}

.page-header p {
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
}

/* Content Sections */
.content-section {
    padding: 60px 0;
}

.content-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 40px;
    margin-bottom: 30px;
}

.content-card h2,
.content-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.content-card p,
.content-card li {
    color: var(--text-secondary);
    text-align: left;
    margin-bottom: 0.75rem;
}

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

.content-card a {
    color: var(--accent-gold);
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--secondary-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-gold);
}

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

.form-group input[type="file"] {
    padding: 0.75rem;
}

.form-group input[type="file"]::file-selector-button {
    background: var(--accent-gold);
    color: var(--primary-dark);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    margin-right: 1rem;
    font-weight: 500;
}

.form-success {
    display: none;
    background: rgba(72, 187, 120, 0.1);
    border: 1px solid var(--success);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    margin-top: 1.5rem;
}

.form-success.show {
    display: block;
}

.form-success p {
    color: var(--success);
    margin: 0;
}

/* Privacy Accept Button (Flutter Integration) */
.privacy-accept-container {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(10, 25, 41, 0.98);
    border-top: 2px solid var(--accent-gold);
    padding: 20px;
    z-index: 9999;
    text-align: center;
}

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

.privacy-accept-btn {
    background: var(--accent-gold);
    color: var(--primary-dark);
    border: none;
    padding: 1rem 3rem;
    font-size: 1.125rem;
    font-weight: 700;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.privacy-accept-btn:hover {
    background: var(--accent-gold-hover);
    transform: scale(1.05);
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

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

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

    .hero-device {
        order: -1;
    }

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

@media (max-width: 768px) {
    .navbar .container {
        justify-content: center;
    }

    .navbar-brand {
        width: 100%;
        justify-content: center;
        font-size: 1rem;
    }

    .navbar-menu {
        width: 100%;
        justify-content: center;
        gap: 1rem;
    }

    .navbar-menu a {
        font-size: 0.9rem;
    }

    .hero {
        padding: 140px 0 60px;
    }

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

    .screenshot-carousel {
        height: 320px;
    }

    .carousel-container {
        height: 280px;
    }

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

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

    .content-card {
        padding: 25px;
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }

    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
    }

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

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

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

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

    .screenshots {
        max-height: 400px;
    }

    .screenshot-carousel {
        height: 280px;
    }

    .carousel-container {
        height: 240px;
    }
}

/* Animations */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.animate-pulse {
    animation: pulse 2s infinite;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

/* Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.mt-4 { margin-top: 2rem; }
.mb-4 { margin-bottom: 2rem; }