/* Tickers.info - Optimized CSS */
:root {
    --bg: #0a0a0f;
    --surface: #12121a;
    --border: #1e1e2e;
    --text: #e4e4e7;
    --muted: #71717a;
    --accent: #22d3ee;
    --green: #22c55e;
    --red: #ef4444;
}

*, *::before, *::after {
    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: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 0;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text);
    font-size: 1.25rem;
    font-weight: 400;
}

.logo strong {
    color: var(--accent);
    font-weight: 700;
}

.nav {
    display: flex;
    gap: 0.25rem;
}

.nav a {
    color: var(--muted);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.15s, background 0.15s;
}

.nav a:hover, .nav a:focus {
    color: var(--text);
    background: var(--surface);
}

/* Hero */
.hero {
    padding: 3rem 0 2rem;
    text-align: center;
    background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
}

.hero h1 {
    font-size: clamp(1.75rem, 5vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
    background: linear-gradient(135deg, var(--text) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    color: var(--muted);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Ticker Tape */
.ticker-tape {
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
}

/* Sections */
.section {
    padding: 3rem 0;
}

.section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.section-desc {
    color: var(--muted);
    margin-bottom: 1.5rem;
    font-size: 0.9375rem;
}

/* Widget Grid */
.widget-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1rem;
    margin-bottom: 1rem;
}

.widget-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.widget-card.full {
    grid-column: 1 / -1;
}

.widget-card h3 {
    font-size: 0.875rem;
    font-weight: 600;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.tv-widget {
    min-height: 400px;
}

.tv-chart {
    min-height: 500px;
}

/* Features */
.features {
    padding: 4rem 0;
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.features h2 {
    text-align: center;
    font-size: 1.75rem;
    margin-bottom: 2.5rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
}

.features-grid article {
    text-align: center;
    padding: 1.5rem;
}

.features-grid svg {
    margin-bottom: 1rem;
}

.features-grid h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.features-grid p {
    color: var(--muted);
    font-size: 0.9375rem;
}

/* Footer */
.footer {
    background: var(--bg);
    padding: 3rem 0 1.5rem;
    border-top: 1px solid var(--border);
}

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

.footer-brand p {
    color: var(--muted);
    font-size: 0.875rem;
    margin-top: 1rem;
    max-width: 280px;
}

.footer-links h4 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--muted);
    margin-bottom: 1rem;
}

.footer-links a {
    display: block;
    color: var(--text);
    text-decoration: none;
    font-size: 0.875rem;
    padding: 0.25rem 0;
    transition: color 0.15s;
}

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

.footer-bottom {
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-bottom p {
    color: var(--muted);
    font-size: 0.8125rem;
}

/* Page Styles (About, Contact, etc.) */
.page-header {
    padding: 3rem 0;
    text-align: center;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.page-header h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.page-header p {
    color: var(--muted);
}

.page-content {
    padding: 3rem 0;
    max-width: 800px;
    margin: 0 auto;
}

.page-content h2 {
    font-size: 1.25rem;
    margin: 2rem 0 1rem;
}

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

.page-content p {
    margin-bottom: 1rem;
    color: var(--muted);
}

.page-content ul {
    margin: 0 0 1rem 1.5rem;
    color: var(--muted);
}

.page-content li {
    margin-bottom: 0.5rem;
}

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

/* Contact Form */
.contact-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    margin-top: 2rem;
}

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

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    color: var(--text);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.15s;
}

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

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: var(--bg);
    font-size: 0.9375rem;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: opacity 0.15s;
}

.btn:hover {
    opacity: 0.9;
}

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

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

    .footer-brand {
        grid-column: 1 / -1;
    }

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

@media (max-width: 480px) {
    .footer-grid {
        grid-template-columns: 1fr;
    }

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

/* Loading placeholder */
.tv-widget::before,
.tv-chart::before {
    content: '';
    display: block;
    background: linear-gradient(90deg, var(--border) 25%, var(--surface) 50%, var(--border) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    height: 100%;
    min-height: inherit;
    border-radius: 4px;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Remove shimmer when widget loads */
.tv-widget:has(iframe)::before,
.tv-chart:has(iframe)::before {
    display: none;
}