/* ==========================================================================
   SVM Stock Predictor - Professional Theme
   Clean, modern dark UI with glassmorphism accents
   ========================================================================== */

/* ---------- CSS Variables ---------- */
:root {
    --bg-primary: #0b0e17;
    --bg-secondary: #111827;
    --bg-card: #1a1f35;
    --bg-card-hover: #212845;
    --bg-glass: rgba(26, 31, 53, 0.7);
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-accent: rgba(99, 132, 255, 0.25);
    --text-primary: #f0f2f8;
    --text-secondary: #8b95b0;
    --text-muted: #5c6580;
    --accent-blue: #6384ff;
    --accent-cyan: #38bdf8;
    --accent-green: #34d399;
    --accent-red: #f87171;
    --accent-amber: #fbbf24;
    --accent-purple: #a78bfa;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Global ---------- */
* { box-sizing: border-box; }

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.6;
}

a { color: var(--accent-cyan); text-decoration: none; }
a:hover { color: #7dd3fc; }

/* ---------- Navbar ---------- */
.navbar {
    background: rgba(11, 14, 23, 0.85) !important;
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border-bottom: 1px solid var(--border-subtle) !important;
    box-shadow: none !important;
    padding: 0.75rem 0;
}

.navbar-brand {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.3px;
    color: var(--text-primary) !important;
}

.navbar-brand i {
    color: var(--accent-blue);
    font-size: 1.3rem;
}

.navbar-nav .nav-link {
    color: var(--text-secondary) !important;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--text-primary) !important;
    background: rgba(99, 132, 255, 0.1);
}

.navbar-nav .nav-link.active {
    color: var(--accent-blue) !important;
}

.dropdown-menu {
    background: var(--bg-card) !important;
    border: 1px solid var(--border-subtle) !important;
    border-radius: var(--radius-md) !important;
    box-shadow: var(--shadow-lg) !important;
    padding: 0.5rem !important;
    backdrop-filter: blur(20px);
}

.dropdown-item {
    color: var(--text-secondary) !important;
    font-size: 0.85rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.dropdown-item:hover {
    color: var(--text-primary) !important;
    background: rgba(99, 132, 255, 0.12) !important;
}

/* ---------- Page Header ---------- */
.page-header {
    margin-bottom: 2rem;
}

.page-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.page-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* ---------- Cards ---------- */
.card {
    background: var(--bg-card) !important;
    border: 1px solid var(--border-subtle) !important;
    border-radius: var(--radius-md) !important;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition);
}

.card:hover {
    border-color: var(--border-accent) !important;
    box-shadow: var(--shadow-md);
}

.card-header {
    background: rgba(255, 255, 255, 0.02) !important;
    border-bottom: 1px solid var(--border-subtle) !important;
    padding: 1rem 1.25rem;
}

.card-header h5 {
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: -0.2px;
}

.card-body { padding: 1.25rem; }

.card-footer {
    background: rgba(255, 255, 255, 0.02) !important;
    border-top: 1px solid var(--border-subtle) !important;
}

/* ---------- Stat Cards ---------- */
.stat-card {
    border: 1px solid var(--border-subtle) !important;
    border-radius: var(--radius-lg) !important;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.stat-card.stat-green::before { background: var(--accent-green); }
.stat-card.stat-blue::before { background: var(--accent-blue); }
.stat-card.stat-amber::before { background: var(--accent-amber); }
.stat-card.stat-cyan::before { background: var(--accent-cyan); }

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-accent) !important;
}

.stat-card .stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.stat-card .stat-icon.icon-green { background: rgba(52, 211, 153, 0.12); color: var(--accent-green); }
.stat-card .stat-icon.icon-blue { background: rgba(99, 132, 255, 0.12); color: var(--accent-blue); }
.stat-card .stat-icon.icon-amber { background: rgba(251, 191, 36, 0.12); color: var(--accent-amber); }
.stat-card .stat-icon.icon-cyan { background: rgba(56, 189, 248, 0.12); color: var(--accent-cyan); }

.stat-card .stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    line-height: 1.2;
    margin-bottom: 0.25rem;
}

.stat-card .stat-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ---------- Tables ---------- */
.table-dark,
.table {
    --bs-table-bg: transparent !important;
    --bs-table-hover-bg: rgba(99, 132, 255, 0.06) !important;
    --bs-table-border-color: var(--border-subtle) !important;
    color: var(--text-primary);
}

.table thead th {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-subtle) !important;
    padding: 0.875rem 1rem;
    white-space: nowrap;
}

.table tbody td {
    font-size: 0.875rem;
    padding: 0.875rem 1rem;
    vertical-align: middle;
    border-bottom: 1px solid var(--border-subtle) !important;
}

.table tbody tr {
    transition: background var(--transition);
}

.table tbody tr:hover {
    background: rgba(99, 132, 255, 0.06) !important;
}

.table tbody tr:last-child td {
    border-bottom: none !important;
}

/* ---------- Badges ---------- */
.badge {
    font-weight: 600;
    letter-spacing: 0.3px;
    font-size: 0.72rem;
    padding: 0.35em 0.7em;
    border-radius: 6px;
}

.badge.bg-success {
    background: rgba(52, 211, 153, 0.15) !important;
    color: var(--accent-green) !important;
    border: 1px solid rgba(52, 211, 153, 0.25);
}

.badge.bg-danger {
    background: rgba(248, 113, 113, 0.15) !important;
    color: var(--accent-red) !important;
    border: 1px solid rgba(248, 113, 113, 0.25);
}

.badge.bg-secondary {
    background: rgba(139, 149, 176, 0.12) !important;
    color: var(--text-muted) !important;
    border: 1px solid rgba(139, 149, 176, 0.15);
}

.badge.bg-warning {
    background: rgba(251, 191, 36, 0.15) !important;
    color: var(--accent-amber) !important;
    border: 1px solid rgba(251, 191, 36, 0.25);
}

.badge.bg-info {
    background: rgba(56, 189, 248, 0.15) !important;
    color: var(--accent-cyan) !important;
    border: 1px solid rgba(56, 189, 248, 0.25);
}

.badge.signal-badge {
    font-size: 0.8rem;
    padding: 0.4em 0.9em;
}

.sector-badge {
    font-size: 0.7rem;
    padding: 0.3em 0.7em;
    border-radius: 20px;
}

/* ---------- Buttons ---------- */
.btn {
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.45rem 1.1rem;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    letter-spacing: 0.1px;
}

.btn-primary {
    background: var(--accent-blue) !important;
    border-color: var(--accent-blue) !important;
    color: #fff !important;
    box-shadow: 0 2px 8px rgba(99, 132, 255, 0.3);
}

.btn-primary:hover {
    background: #7b9aff !important;
    border-color: #7b9aff !important;
    box-shadow: 0 4px 16px rgba(99, 132, 255, 0.4);
}

.btn-outline-primary {
    border-color: rgba(99, 132, 255, 0.3) !important;
    color: var(--accent-blue) !important;
    background: transparent !important;
}

.btn-outline-primary:hover,
.btn-outline-primary.active {
    background: var(--accent-blue) !important;
    border-color: var(--accent-blue) !important;
    color: #fff !important;
}

.btn-outline-light {
    border-color: var(--border-subtle) !important;
    color: var(--text-secondary) !important;
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.06) !important;
    border-color: rgba(255, 255, 255, 0.15) !important;
    color: var(--text-primary) !important;
}

.btn-group .btn {
    border-radius: var(--radius-sm) !important;
    margin-right: 4px;
}

.btn-group .btn:last-child { margin-right: 0; }

/* ---------- Progress Bars ---------- */
.progress {
    background: rgba(255, 255, 255, 0.06);
    border-radius: 20px;
    overflow: hidden;
}

.progress-bar {
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.3px;
}

.progress-bar.bg-success { background: var(--accent-green) !important; }
.progress-bar.bg-warning { background: var(--accent-amber) !important; }
.progress-bar.bg-danger { background: var(--accent-red) !important; }

/* ---------- Prediction Cards ---------- */
.prediction-card {
    border-radius: var(--radius-md) !important;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.prediction-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    width: 3px;
}

.prediction-card.pred-up::after { background: var(--accent-green); }
.prediction-card.pred-down::after { background: var(--accent-red); }

.prediction-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.prediction-card .card-header {
    background: transparent !important;
    border-bottom: 1px solid var(--border-subtle) !important;
    padding: 1rem 1.25rem;
}

.prediction-card .stock-symbol {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.prediction-card .stock-name {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ---------- Info Cards (Model Info, Metrics) ---------- */
.info-card .table {
    margin-bottom: 0;
}

.info-card .table td {
    padding: 0.65rem 0.5rem;
    font-size: 0.85rem;
}

.info-card .table td:first-child {
    color: var(--text-muted);
    font-weight: 500;
}

.info-card .table td:last-child {
    color: var(--text-primary);
    font-weight: 600;
    text-align: right;
}

/* ---------- Stock Detail Page ---------- */
.price-card .price-value {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -1px;
}

.price-card .price-change {
    font-size: 1rem;
    font-weight: 600;
}

.price-card .price-ohlc {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.timeframe-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    transition: all var(--transition);
    text-align: center;
}

.timeframe-box:hover {
    background: rgba(99, 132, 255, 0.06);
    border-color: var(--border-accent);
}

.timeframe-box .tf-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.timeframe-box .tf-direction {
    font-size: 1.25rem;
    font-weight: 700;
}

.timeframe-box .tf-confidence {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ---------- Chart ---------- */
#stockChart {
    background: transparent;
    border-radius: var(--radius-sm);
}

/* ---------- Footer ---------- */
footer {
    background: rgba(11, 14, 23, 0.9) !important;
    backdrop-filter: blur(16px);
    border-top: 1px solid var(--border-subtle) !important;
}

footer small {
    color: var(--text-muted);
    font-size: 0.78rem;
    letter-spacing: 0.2px;
}

/* ---------- Text Utilities ---------- */
.text-success { color: var(--accent-green) !important; }
.text-danger { color: var(--accent-red) !important; }
.text-warning { color: var(--accent-amber) !important; }
.text-info { color: var(--accent-cyan) !important; }
.text-primary { color: var(--accent-blue) !important; }
.text-muted { color: var(--text-muted) !important; }

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

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

::-webkit-scrollbar-thumb {
    background: rgba(99, 132, 255, 0.3);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(99, 132, 255, 0.5);
}

/* ---------- Timeframe Description ---------- */
.tf-desc-card {
    background: rgba(99, 132, 255, 0.04) !important;
    border: 1px solid rgba(99, 132, 255, 0.1) !important;
}

.tf-desc-card strong {
    color: var(--accent-blue);
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    .stat-card .stat-value {
        font-size: 1.4rem;
    }

    .btn-group {
        flex-wrap: wrap;
    }

    .btn-group .btn {
        margin-bottom: 4px;
    }

    .page-header h2 {
        font-size: 1.4rem;
    }

    .price-card .price-value {
        font-size: 1.5rem;
    }
}

/* ---------- Animation ---------- */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-in {
    animation: fadeInUp 0.4s ease-out forwards;
}

.animate-in:nth-child(1) { animation-delay: 0.05s; }
.animate-in:nth-child(2) { animation-delay: 0.1s; }
.animate-in:nth-child(3) { animation-delay: 0.15s; }
.animate-in:nth-child(4) { animation-delay: 0.2s; }