/* DecisionMap - Dark Tech Theme */
/* Based on app's dark gray/teal/cyan aesthetic */

:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-card: #21262d;
    --bg-card-hover: #30363d;
    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent-cyan: #58a6ff;
    --accent-teal: #3fb9a3;
    --accent-red: #f85149;
    --accent-green: #3fb950;
    --accent-orange: #d29922;
    --border-color: #30363d;
    --gradient-start: #0d1117;
    --gradient-mid: #0f2027;
    --gradient-end: #203a43;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --radius: 12px;
    --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: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-mid) 50%, var(--gradient-end) 100%);
    background-attachment: fixed;
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(13, 17, 23, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 0 24px;
    height: 64px;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.25rem;
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-brand-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-teal));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
    flex-shrink: 0;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 6px;
    transition: var(--transition);
    font-size: 0.9rem;
    white-space: nowrap;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--text-primary);
    background: var(--bg-card);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 8px;
}

/* Mobile Navigation */
@media (max-width: 768px) {
    .navbar {
        padding: 0 16px;
    }

    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 16px;
        gap: 4px;
        border-bottom: 1px solid var(--border-color);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-menu a {
        width: 100%;
        text-align: center;
        padding: 12px 16px;
    }
}

/* Main Content */
main {
    padding-top: 64px;
}

/* Hero Section */
.hero {
    min-height: calc(100vh - 64px);
    display: flex;
    align-items: center;
    padding: 60px 24px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 80%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(88, 166, 255, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    width: 100%;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(88, 166, 255, 0.1);
    border: 1px solid rgba(88, 166, 255, 0.3);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--accent-cyan);
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
    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-description {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
    max-width: 500px;
}

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

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

.device-frame {
    position: relative;
    max-width: 280px;
    padding: 12px;
    background: linear-gradient(145deg, #2d333b, #21262d);
    border-radius: 36px;
    box-shadow: var(--shadow-lg);
}

.device-frame::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 24px;
    background: #161b22;
    border-radius: 12px;
}

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

@media (max-width: 900px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

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

    .hero-mockup {
        order: -1;
    }

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-teal));
    color: var(--bg-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(88, 166, 255, 0.3);
}

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

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-cyan);
}

.btn-icon {
    font-size: 1.2rem;
}

/* Section Styles */
.section {
    padding: 80px 24px;
}

.section-dark {
    background: rgba(0, 0, 0, 0.2);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.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 {
    transform: translateY(-4px);
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, rgba(88, 166, 255, 0.2), rgba(63, 185, 163, 0.2));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

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

/* Screenshots Section */
.screenshots-section {
    max-height: 500px;
    padding: 60px 24px;
    overflow: hidden;
}

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

.carousel-track {
    display: flex;
    gap: 20px;
    transition: transform 0.5s ease;
    height: 100%;
    align-items: center;
    justify-content: center;
}

.carousel-slide {
    flex: 0 0 auto;
    display: none;
}

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

.screenshot-mockup {
    position: relative;
    max-width: 200px;
    margin: 0 auto;
}

.screenshot-mockup::before {
    content: '';
    position: absolute;
    inset: -16px;
    background: linear-gradient(145deg, #2d333b, #21262d);
    border-radius: 28px;
    z-index: -1;
}

.screenshot-mockup img {
    width: 100%;
    height: auto;
    max-height: 320px;
    object-fit: contain;
    border-radius: 16px;
    cursor: pointer;
    transition: var(--transition);
    filter: blur(5px);
}

.screenshot-mockup img.loaded {
    filter: blur(0);
}

.carousel-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin-top: 24px;
}

.carousel-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

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

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

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border-color);
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

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

/* Lightbox */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.lightbox.active {
    display: flex;
}

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

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

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.lightbox-close:hover {
    background: var(--accent-red);
}

/* How It Works */
.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 32px;
    counter-reset: step;
}

.step-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: left;
    counter-increment: step;
}

.step-card::before {
    content: counter(step);
    position: absolute;
    top: -16px;
    left: 24px;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-teal));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--bg-primary);
}

.step-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 12px;
    margin-top: 8px;
    color: var(--text-primary);
}

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

/* Bias Detection Section */
.bias-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.bias-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 20px;
    border-left: 4px solid var(--accent-orange);
    transition: var(--transition);
}

.bias-card:hover {
    border-color: var(--accent-orange);
    transform: translateX(4px);
}

.bias-card h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--accent-orange);
}

.bias-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-align: left;
    line-height: 1.5;
}

/* CTA Section */
.cta-section {
    text-align: center;
    padding: 80px 24px;
    background: linear-gradient(180deg, transparent, rgba(88, 166, 255, 0.05));
}

.cta-section h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-section p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 32px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

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

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 48px 24px 24px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
}

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

.footer-brand h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-align: left;
    line-height: 1.6;
}

.footer-links h4 {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 16px;
}

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

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
}

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

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Content Pages */
.page-header {
    padding: 100px 24px 60px;
    text-align: center;
    background: linear-gradient(180deg, rgba(88, 166, 255, 0.05), transparent);
}

.page-header h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.content-section {
    padding: 60px 24px;
}

.content-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.content-container h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 32px;
    margin-bottom: 16px;
    color: var(--text-primary);
}

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

.content-container h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-top: 24px;
    margin-bottom: 12px;
    color: var(--accent-cyan);
}

.content-container p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    text-align: left;
    line-height: 1.7;
}

.content-container ul,
.content-container ol {
    margin-bottom: 16px;
    padding-left: 24px;
    color: var(--text-secondary);
}

.content-container li {
    margin-bottom: 8px;
    text-align: left;
    line-height: 1.6;
}

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

.content-container a:hover {
    text-decoration: underline;
}

/* Contact Form */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    max-width: 1000px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

.contact-info h2 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    text-align: left;
    line-height: 1.6;
}

.contact-details {
    list-style: none;
}

.contact-details li {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    text-align: left;
}

.contact-details .icon {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-primary);
    text-align: left;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.1);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.form-group input[type="file"] {
    padding: 10px;
    cursor: pointer;
}

.form-group input[type="file"]::file-selector-button {
    padding: 8px 16px;
    background: var(--bg-card-hover);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    cursor: pointer;
    margin-right: 12px;
    transition: var(--transition);
}

.form-group input[type="file"]::file-selector-button:hover {
    background: var(--accent-cyan);
    color: var(--bg-primary);
}

.form-submit {
    width: 100%;
}

.form-message {
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: center;
    display: none;
}

.form-message.success {
    display: block;
    background: rgba(63, 185, 80, 0.1);
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
}

.form-message.error {
    display: block;
    background: rgba(248, 81, 73, 0.1);
    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: 1px solid var(--border-color);
    padding: 20px 24px;
    z-index: 1500;
    display: none;
    text-align: center;
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.3);
}

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

.privacy-accept-container p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.privacy-accept-btn {
    padding: 16px 48px;
    font-size: 1.1rem;
    min-width: 200px;
}

/* Stats */
.stats-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 48px;
    padding: 40px 0;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-cyan);
    line-height: 1;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 8px;
}

/* Utilities */
.text-center {
    text-align: center;
}

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

.mt-4 {
    margin-top: 32px;
}

.mb-4 {
    margin-bottom: 32px;
}

/* Responsive adjustments */
@media (max-width: 600px) {
    .section {
        padding: 60px 16px;
    }

    .content-container {
        padding: 24px;
    }

    .contact-form {
        padding: 24px;
    }

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

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

    .screenshot-mockup img {
        max-height: 280px;
    }

    .screenshots-section {
        max-height: 450px;
    }

    .screenshot-carousel {
        height: 340px;
    }
}