/* Chip Forecast Dashboard — Styles */
:root {
    --bg: #0f172a;
    --bg-card: #1e293b;
    --bg-sidebar: #1e293b;
    --text: #e2e8f0;
    --text-muted: #94a3b8;
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --border: #334155;
    --radius: 8px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg);
    color: var(--text);
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 240px;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
}
.sidebar-header { padding: 24px 20px 16px; border-bottom: 1px solid var(--border); }
.sidebar-header h2 { font-size: 1.25rem; color: var(--primary); }
.sidebar-header .version { font-size: 0.75rem; color: var(--text-muted); }
.nav-links { list-style: none; padding: 12px 0; flex: 1; }
.nav-links li a {
    display: block; padding: 10px 20px; color: var(--text-muted);
    text-decoration: none; transition: all 0.2s;
}
.nav-links li a:hover, .nav-links li a.active {
    color: var(--text); background: rgba(59,130,246,0.1);
    border-right: 3px solid var(--primary);
}
.sidebar-footer { padding: 16px 20px; border-top: 1px solid var(--border); }
.upload-form { display: flex; flex-direction: column; gap: 8px; }
.upload-label {
    font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase;
    letter-spacing: 0.05em;
}
.upload-form input[type="file"] { font-size: 0.8rem; color: var(--text-muted); width: 100%; }

/* Content */
.content { margin-left: 240px; padding: 32px; flex: 1; min-width: 0; }

h1 { font-size: 1.75rem; margin-bottom: 24px; }
h2 { font-size: 1.25rem; margin-bottom: 16px; color: var(--text); }
.subtitle { color: var(--text-muted); margin: -16px 0 24px; }
.back-link { color: var(--primary); text-decoration: none; display: inline-block; margin-bottom: 16px; }

/* Summary Cards */
.summary-cards {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px; margin-bottom: 32px;
}
.card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 20px; text-align: center;
}
.card-value { font-size: 2rem; font-weight: 700; color: var(--primary); }
.card-warning .card-value { color: var(--warning); }
.card-danger .card-value { color: var(--danger); }
.card-label { color: var(--text-muted); font-size: 0.85rem; margin-top: 4px; }

/* Dashboard Grid */
.dashboard-grid { display: grid; grid-template-columns: 3fr 2fr; gap: 24px; }
@media (max-width: 1200px) { .dashboard-grid { grid-template-columns: 1fr; } }
.alerts-container .data-table { font-size: 0.85rem; }
.alerts-container .data-table td, .alerts-container .data-table th { padding: 8px 8px; white-space: nowrap; }

.charts-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 32px; }
@media (max-width: 1000px) { .charts-row { grid-template-columns: 1fr; } }

.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 1000px) { .detail-grid { grid-template-columns: 1fr; } }

.chart-container {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 20px; min-height: 350px;
}
.chart-container canvas { max-height: 320px; }

.alerts-container {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 20px; overflow-x: auto;
}

/* Tables */
.data-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.data-table th {
    text-align: left; padding: 10px 12px; color: var(--text-muted);
    border-bottom: 2px solid var(--border); font-weight: 600;
    text-transform: uppercase; font-size: 0.75rem; letter-spacing: 0.05em;
}
.data-table td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
.data-table a { color: var(--primary); text-decoration: none; }
.data-table a:hover { text-decoration: underline; }
.data-table tbody tr:hover { background: rgba(59,130,246,0.05); }
.row-warning { background: rgba(245,158,11,0.08) !important; }
.row-critical { background: rgba(239,68,68,0.08) !important; }

.table-scroll { overflow-x: auto; }

/* Badges */
.badge {
    display: inline-block; padding: 3px 10px; border-radius: 12px;
    font-size: 0.75rem; font-weight: 600; text-transform: uppercase;
}
.badge-critical { background: rgba(239,68,68,0.2); color: #fca5a5; }
.badge-high { background: rgba(245,158,11,0.2); color: #fcd34d; }
.badge-medium { background: rgba(59,130,246,0.2); color: #93c5fd; }

/* Trends */
.trend-up { color: var(--success); }
.trend-down { color: var(--danger); }

/* Search */
.search-bar {
    display: flex; gap: 8px; margin-bottom: 24px; align-items: center;
}
.search-bar input[type="text"] {
    flex: 1; padding: 10px 16px; background: var(--bg-card);
    border: 1px solid var(--border); border-radius: var(--radius);
    color: var(--text); font-size: 0.95rem;
}
.search-bar input:focus { outline: none; border-color: var(--primary); }

/* Buttons */
.btn {
    display: inline-block; padding: 10px 20px; border-radius: var(--radius);
    font-size: 0.9rem; font-weight: 600; text-decoration: none;
    cursor: pointer; border: none; transition: all 0.2s;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: var(--bg-card); color: var(--text); border: 1px solid var(--border); }

/* Toolbar */
.toolbar {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 24px; color: var(--text-muted);
}

/* Forms */
.settings-form { max-width: 500px; }
.form-group { margin-bottom: 24px; }
.form-group label {
    display: block; margin-bottom: 6px; font-weight: 600; font-size: 0.9rem;
}
.form-group input, .form-group select {
    width: 100%; padding: 10px 12px; background: var(--bg-card);
    border: 1px solid var(--border); border-radius: var(--radius);
    color: var(--text); font-size: 0.95rem;
}
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--primary); }
.help-text { color: var(--text-muted); font-size: 0.8rem; margin-top: 4px; }

/* Flash messages */
.flash-messages { margin-bottom: 24px; }
.flash {
    padding: 12px 16px; border-radius: var(--radius); margin-bottom: 8px;
    font-size: 0.9rem;
}
.flash-success { background: rgba(16,185,129,0.15); color: #6ee7b7; border: 1px solid rgba(16,185,129,0.3); }
.flash-error { background: rgba(239,68,68,0.15); color: #fca5a5; border: 1px solid rgba(239,68,68,0.3); }
.flash-info { background: rgba(59,130,246,0.15); color: #93c5fd; border: 1px solid rgba(59,130,246,0.3); }

/* Empty states */
.empty-state { color: var(--text-muted); padding: 32px; text-align: center; font-style: italic; }

/* Error page */
.error-page { text-align: center; padding: 80px 20px; }
.error-page h1 { font-size: 5rem; color: var(--danger); margin-bottom: 16px; }
.error-page p { color: var(--text-muted); margin-bottom: 32px; }

/* Allocation styles */
.badge-priority-1 { background: rgba(239,68,68,0.2); color: #fca5a5; }
.badge-priority-2 { background: rgba(245,158,11,0.2); color: #fcd34d; }
.badge-priority-3 { background: rgba(59,130,246,0.2); color: #93c5fd; }
.badge-priority-4 { background: rgba(16,185,129,0.2); color: #6ee7b7; }
.badge-priority-5 { background: rgba(148,163,184,0.2); color: #94a3b8; }

.badge-hard { background: rgba(239,68,68,0.2); color: #fca5a5; }
.badge-soft { background: rgba(59,130,246,0.2); color: #93c5fd; }

.badge-active { background: rgba(16,185,129,0.2); color: #6ee7b7; }
.badge-fulfilled { background: rgba(59,130,246,0.2); color: #93c5fd; }
.badge-expired { background: rgba(148,163,184,0.2); color: #94a3b8; }
.badge-cancelled { background: rgba(239,68,68,0.15); color: #fca5a5; }
.badge-ongoing { background: rgba(245,158,11,0.2); color: #fcd34d; }
.badge-on-order { background: rgba(16,185,129,0.2); color: #6ee7b7; }
.badge-completed { background: rgba(16,185,129,0.2); color: #6ee7b7; }

.remaining-green { color: #10b981; font-weight: 600; }
.remaining-yellow { color: #f59e0b; font-weight: 600; }
.remaining-orange { color: #f97316; font-weight: 600; }
.remaining-red { color: #ef4444; font-weight: 700; }

.filter-bar { display: flex; gap: 12px; margin-bottom: 24px; flex-wrap: wrap; align-items: center; }
.filter-bar select, .filter-bar input {
    padding: 8px 12px; background: var(--bg-card);
    border: 1px solid var(--border); border-radius: var(--radius);
    color: var(--text); font-size: 0.85rem;
}

.overalloc-warning {
    background: rgba(245,158,11,0.15); border: 1px solid rgba(245,158,11,0.3);
    border-radius: var(--radius); padding: 12px 16px; margin-bottom: 20px;
    color: #fcd34d; font-size: 0.9rem;
}

.flash-warning { background: rgba(245,158,11,0.15); color: #fcd34d; border: 1px solid rgba(245,158,11,0.3); }

.btn-danger { background: var(--danger); color: #fff; border: none; cursor: pointer; padding: 10px 20px; border-radius: var(--radius); font-size: 0.9rem; font-weight: 600; }
.btn-danger:hover { background: #dc2626; }