/* Crypto Predict — Dark Cyberpunk Theme */
/* WCAG AAA 7:1 contrast ratio */

:root {
    --bg-primary: #0a0a0f;
    --bg-card: #12121f;
    --bg-card-alt: #0e0e1a;
    --border: #1e1e35;
    --grid-line: #1a1a2e;

    --text-primary: #e8e8f0;
    --text-secondary: #a0a0b8;
    --text-muted: #6a6a82;

    --accent-green: #00ff88;
    --accent-red: #ff3366;
    --accent-blue: #00bbff;
    --accent-yellow: #ffcc00;

    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    --radius: 8px;
    --gap: 16px;
}

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

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.6;
    min-height: 100vh;
}

/* --- Layout --- */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--gap);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--gap);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--gap);
}

@media (max-width: 768px) {
    .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* --- Header --- */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--gap) 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: var(--gap);
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-blue);
    font-family: var(--font-mono);
    letter-spacing: 2px;
}

.header nav a {
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 24px;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.header nav a:hover,
.header nav a.active {
    color: var(--text-primary);
}

/* --- Price Banner --- */
.price-banner {
    display: flex;
    align-items: baseline;
    gap: 16px;
    margin-bottom: var(--gap);
    padding: 12px 0;
}

.price-banner .pair {
    color: var(--text-secondary);
    font-size: 1rem;
}

.price-banner .price {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.price-banner .change {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 600;
}

.price-banner .change.up { color: var(--accent-green); }
.price-banner .change.down { color: var(--accent-red); }

/* --- Cards --- */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--gap);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.card-title {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card-value {
    font-family: var(--font-mono);
    font-size: 1.4rem;
    font-weight: 700;
}

/* --- Signal Panels --- */
.signal-section {
    margin: var(--gap) 0;
}

.signal-section-title {
    font-size: 1rem;
    color: var(--accent-blue);
    margin-bottom: 12px;
    font-family: var(--font-mono);
    letter-spacing: 1px;
}

.signal-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    position: relative;
}

.signal-type {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.signal-type.STRONG_BUY { color: var(--accent-green); text-shadow: 0 0 20px rgba(0, 255, 136, 0.4); }
.signal-type.BUY { color: var(--accent-green); }
.signal-type.HOLD { color: var(--accent-yellow); }
.signal-type.SELL { color: var(--accent-red); }
.signal-type.STRONG_SELL { color: var(--accent-red); text-shadow: 0 0 20px rgba(255, 51, 102, 0.4); }

.signal-arrow {
    font-size: 2rem;
    line-height: 1;
    margin-bottom: 4px;
}

.signal-prices {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--text-primary);
    margin: 8px 0;
}

.signal-change {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 600;
}

.signal-change.positive { color: var(--accent-green); }
.signal-change.negative { color: var(--accent-red); }

/* Confidence bar */
.confidence-bar {
    height: 6px;
    background: var(--bg-primary);
    border-radius: 3px;
    margin: 10px 0;
    overflow: hidden;
}

.confidence-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.5s ease;
}

.confidence-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.hit-rate {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 8px;
}

.signal-timeline {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 10px;
}

.signal-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.signal-dot.STRONG_BUY, .signal-dot.BUY { background: var(--accent-green); }
.signal-dot.HOLD { background: var(--accent-yellow); }
.signal-dot.SELL, .signal-dot.STRONG_SELL { background: var(--accent-red); }

.signal-target {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 8px;
}

.btn-history {
    display: inline-block;
    margin-top: 12px;
    padding: 4px 12px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.8rem;
    font-family: var(--font-sans);
    transition: all 0.2s;
}

.btn-history:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

/* --- Chart container --- */
.chart-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--gap);
    margin-bottom: var(--gap);
    position: relative;
}

.chart-wrapper {
    position: relative;
    height: 350px;
}

.chart-wrapper.short {
    height: 220px;
}

/* --- Modal --- */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    z-index: 1000;
    justify-content: center;
    align-items: flex-start;
    padding-top: 40px;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: 90%;
    max-width: 1000px;
    max-height: 85vh;
    overflow-y: auto;
    padding: 24px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    font-size: 1.2rem;
    color: var(--accent-blue);
    font-family: var(--font-mono);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 4px 8px;
}

.modal-close:hover {
    color: var(--text-primary);
}

/* Summary cards in modal */
.summary-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

@media (max-width: 768px) {
    .summary-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.summary-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px;
    text-align: center;
}

.summary-card .label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.summary-card .value {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* --- Table --- */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.data-table th {
    text-align: left;
    padding: 10px 12px;
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    user-select: none;
}

.data-table th:hover {
    color: var(--accent-blue);
}

.data-table td {
    padding: 8px 12px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    border-bottom: 1px solid var(--bg-primary);
}

.data-table tr:nth-child(even) {
    background: var(--bg-card-alt);
}

.data-table tr:nth-child(odd) {
    background: var(--bg-card);
}

.correct { color: var(--accent-green); }
.incorrect { color: var(--accent-red); }

/* --- Pagination --- */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-top: 16px;
    font-size: 0.85rem;
}

.pagination button {
    padding: 6px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-secondary);
    cursor: pointer;
    font-family: var(--font-sans);
}

.pagination button:hover:not(:disabled) {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.pagination button:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.pagination .page-info {
    color: var(--text-secondary);
}

/* --- Loading --- */
.skeleton {
    background: linear-gradient(90deg, var(--bg-card) 25%, var(--border) 50%, var(--bg-card) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 4px;
}

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

/* --- Auth --- */
.auth-bar {
    display: flex;
    align-items: center;
    gap: 12px;
}

.auth-bar .user-name {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.btn {
    padding: 6px 16px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    transition: all 0.2s;
}

.btn:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.btn-primary {
    background: var(--accent-blue);
    color: var(--bg-primary);
    border-color: var(--accent-blue);
    font-weight: 600;
}

.btn-primary:hover {
    background: #0099dd;
}

/* --- Filter --- */
.filter-bar {
    display: flex;
    gap: 8px;
    margin-bottom: 12px;
}

.filter-bar select {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-primary);
    padding: 6px 10px;
    font-family: var(--font-sans);
    font-size: 0.85rem;
}