/* ===================================================================
   Calculadora Algebraica — Tema oscuro
   =================================================================== */

:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-card: #1c2128;
    --bg-hover: #252c35;
    --border: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --accent: #58a6ff;
    --green: #3fb950;
    --red: #f85149;
    --yellow: #d29922;
    --orange: #db6d28;
    --purple: #bc8cff;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
}

/* Login */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 40px;
    text-align: center;
}

.login-card h1 {
    font-size: 24px;
    margin-bottom: 8px;
}

.login-card .subtitle {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 16px;
    text-align: left;
}

.form-group label {
    display: block;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-group input {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 14px;
}

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

.btn-primary {
    width: 100%;
    padding: 10px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 8px;
}

.btn-primary:hover {
    opacity: 0.9;
}

.error-msg {
    background: rgba(248, 81, 73, 0.1);
    border: 1px solid var(--red);
    color: var(--red);
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 13px;
}

/* Navbar */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .logo {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.navbar .nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 24px;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
}

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

.card-header h3 {
    font-size: 14px;
    font-weight: 600;
}

/* Buttons */
.btn {
    padding: 6px 14px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid var(--border);
    background: var(--bg-secondary);
    color: var(--text-primary);
    cursor: pointer;
}

.btn:hover { background: var(--bg-hover); }

.btn-sm {
    padding: 4px 10px;
    font-size: 11px;
}

/* Table */
.table-container {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

th {
    text-align: left;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

td {
    padding: 8px 12px;
    border-bottom: 1px solid var(--border);
    font-variant-numeric: tabular-nums;
}

tr:hover {
    background: var(--bg-hover);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

/* ===================================================================
   Calculadora — Extensiones
   =================================================================== */

/* Coin groups */
.coin-group {
    margin-bottom: 12px;
}

.coin-group-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border-radius: 6px;
    cursor: pointer;
    user-select: none;
}

.coin-group-header:hover {
    background: var(--bg-hover);
}

.coin-group-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--accent);
}

.coin-group-count {
    font-size: 12px;
    color: var(--text-muted);
}

.coin-checkboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: 8px 4px;
}

.coin-checkbox {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    color: var(--text-secondary);
    background: var(--bg-primary);
    border: 1px solid transparent;
    transition: all 0.15s;
}

.coin-checkbox:hover {
    border-color: var(--border);
    color: var(--text-primary);
}

.coin-checkbox input:checked + span {
    color: var(--accent);
    font-weight: 600;
}

.coin-checkbox input {
    width: 14px;
    height: 14px;
    accent-color: var(--accent);
}

/* Custom coin input */
.custom-coin-row {
    display: flex;
    gap: 8px;
    margin: 12px 0;
}

.custom-input {
    flex: 1;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 13px;
}

.custom-input:focus {
    outline: none;
    border-color: var(--accent);
}

/* Timeframe + Analyze row */
.analyze-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 12px;
    gap: 16px;
}

.timeframe-selector {
    display: flex;
    gap: 4px;
}

.tf-option {
    padding: 6px 16px;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    color: var(--text-secondary);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    transition: all 0.15s;
}

.tf-option:hover {
    border-color: var(--accent);
}

.tf-option input {
    display: none;
}

.tf-option:has(input:checked) {
    background: rgba(88, 166, 255, 0.15);
    border-color: var(--accent);
    color: var(--accent);
    font-weight: 600;
}

.analyze-btn {
    width: auto;
    padding: 10px 32px;
    font-size: 14px;
}

.analyze-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Progress */
.progress-card {
    text-align: center;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    margin-bottom: 8px;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 4px;
    transition: width 0.3s ease;
}

.progress-current {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 6px;
}

/* Results stats */
.results-stats {
    display: flex;
    gap: 12px;
    font-size: 12px;
}

.results-stats .stat-badge {
    padding: 2px 10px;
    border-radius: 10px;
    font-weight: 600;
}

/* Type badges */
.type-tendencial {
    background: rgba(63, 185, 80, 0.15);
    color: var(--green);
}

.type-mean_reversion {
    background: rgba(88, 166, 255, 0.15);
    color: var(--accent);
}

.type-breakout {
    background: rgba(219, 109, 40, 0.15);
    color: var(--orange);
}

.type-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.mixed-indicator {
    font-size: 10px;
    color: var(--yellow);
    margin-left: 4px;
}

/* Sortable headers */
th.sortable {
    cursor: pointer;
    user-select: none;
}

th.sortable:hover {
    color: var(--accent);
}

th.sort-asc::after {
    content: " \u25B2";
    font-size: 9px;
}

th.sort-desc::after {
    content: " \u25BC";
    font-size: 9px;
}

/* Expandable detail row */
.detail-row td {
    padding: 0;
    border-bottom: 1px solid var(--border);
}

.detail-content {
    padding: 12px 16px;
    background: var(--bg-secondary);
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

@media (max-width: 768px) {
    .detail-grid {
        grid-template-columns: 1fr;
    }
    .analyze-row {
        flex-direction: column;
    }
    .analyze-btn {
        width: 100%;
    }
}

.detail-section h4 {
    font-size: 12px;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.detail-row-item {
    display: flex;
    justify-content: space-between;
    padding: 3px 0;
    font-size: 12px;
    border-bottom: 1px solid rgba(48, 54, 61, 0.3);
}

.detail-row-item:last-child {
    border-bottom: none;
}

.detail-row-item .label {
    color: var(--text-secondary);
}

.detail-row-item .value {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

/* Recommendation box */
.rec-box {
    margin-top: 10px;
    padding: 10px 12px;
    border-radius: 6px;
    font-size: 12px;
    line-height: 1.5;
}

.rec-tendencial {
    background: rgba(63, 185, 80, 0.08);
    border: 1px solid rgba(63, 185, 80, 0.3);
    color: var(--green);
}

.rec-mean_reversion {
    background: rgba(88, 166, 255, 0.08);
    border: 1px solid rgba(88, 166, 255, 0.3);
    color: var(--accent);
}

.rec-breakout {
    background: rgba(219, 109, 40, 0.08);
    border: 1px solid rgba(219, 109, 40, 0.3);
    color: var(--orange);
}

/* Regime banner */
.regime-banner {
    margin-bottom: 16px;
    padding: 14px 20px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg-card);
}

.regime-loading {
    font-size: 13px;
    color: var(--text-muted);
    text-align: center;
}

.regime-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.regime-main {
    display: flex;
    align-items: center;
    gap: 12px;
}

.regime-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    font-weight: 600;
}

.regime-value {
    font-size: 18px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.regime-conf {
    font-size: 13px;
    color: var(--text-secondary);
}

.regime-metrics {
    display: flex;
    gap: 16px;
    font-size: 12px;
}

.regime-metric {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.regime-metric .label {
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.regime-metric .value {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.regime-banner.bullish {
    border-color: rgba(63, 185, 80, 0.4);
    background: rgba(63, 185, 80, 0.06);
}

.regime-banner.bullish .regime-value {
    color: var(--green);
}

.regime-banner.bearish {
    border-color: rgba(248, 81, 73, 0.4);
    background: rgba(248, 81, 73, 0.06);
}

.regime-banner.bearish .regime-value {
    color: var(--red);
}

.regime-banner.neutral {
    border-color: rgba(139, 148, 158, 0.4);
    background: rgba(139, 148, 158, 0.06);
}

.regime-banner.neutral .regime-value {
    color: var(--text-secondary);
}

.regime-banner.weakening {
    border-color: rgba(210, 153, 34, 0.5);
    background: rgba(210, 153, 34, 0.08);
}

.regime-banner.weakening .regime-value {
    color: #d29922;
}

.regime-implication {
    font-size: 12px;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid rgba(48, 54, 61, 0.5);
    color: var(--text-secondary);
}

/* Clickable row */
tr.result-row {
    cursor: pointer;
}

tr.result-row.expanded {
    background: var(--bg-hover);
}