/* Amazon Financial & Inventory System - Modern Unified Theme */
:root {
    --bg-dark: #0b0f19;
    --bg-panel: #151e32;
    --bg-header: #1e293b;
    --bg-card-inner: #0f172a;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.25);
    --border: #24324f;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --purple: #a855f7;
    --teal: #14b8a6;
    --amber: #f59e0b;
    --emerald: #059669;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
}

/* App Header & Navigation */
.app-header {
    background-color: var(--bg-panel);
    border-bottom: 1px solid var(--border);
    padding: 16px 36px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    flex-wrap: wrap;
    gap: 16px;
}

.header-left { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.header-title { font-size: 19px; font-weight: 700; letter-spacing: 0.5px; color: #fff; display: flex; align-items: center; gap: 8px;}

/* Top Page Navigation Links (4 Modules) */
.main-nav {
    display: flex;
    background: #0f172a;
    padding: 4px;
    border-radius: 10px;
    border: 1px solid var(--border);
    gap: 4px;
    flex-wrap: wrap;
}
.nav-link {
    text-decoration: none;
    color: var(--text-muted);
    padding: 7px 15px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,0.05); }
.nav-link.active {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 2px 8px var(--accent-glow);
}
.nav-link.forecast.active {
    background: var(--teal);
    box-shadow: 0 2px 8px rgba(20, 184, 166, 0.4);
}
.nav-link.ledger.active {
    background: var(--purple);
    box-shadow: 0 2px 8px rgba(168, 85, 247, 0.4);
}
.nav-link.inventory.active {
    background: var(--emerald);
    box-shadow: 0 2px 8px rgba(5, 150, 105, 0.4);
}

.header-controls { display: flex; gap: 14px; align-items: center; flex-wrap: wrap; }

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
}
.badge.audit { background: rgba(168, 85, 247, 0.15); color: #c084fc; border: 1px solid rgba(168, 85, 247, 0.3); }
.badge.success { background: rgba(16, 185, 129, 0.15); color: var(--success); border: 1px solid rgba(16, 185, 129, 0.25); }
.badge.info { background: rgba(59, 130, 246, 0.15); color: var(--accent); border: 1px solid rgba(59, 130, 246, 0.25); }
.badge.warning { background: rgba(245, 158, 11, 0.15); color: var(--warning); border: 1px solid rgba(245, 158, 11, 0.3); }
.badge.danger { background: rgba(239, 68, 68, 0.15); color: var(--danger); border: 1px solid rgba(239, 68, 68, 0.25); }
.badge.teal { background: rgba(20, 184, 166, 0.15); color: var(--teal); border: 1px solid rgba(20, 184, 166, 0.3); }
.badge.emerald { background: rgba(5, 150, 105, 0.15); color: #34d399; border: 1px solid rgba(5, 150, 105, 0.3); }

/* Currency and Exch rate inputs */
.ctrl-group {
    display: flex;
    align-items: center;
    gap: 8px;
    background: #0f172a;
    padding: 4px 10px;
    border-radius: 8px;
    border: 1px solid var(--border);
    font-size: 13px;
}
.ctrl-select, .ctrl-input {
    background: transparent;
    border: none;
    color: var(--text-main);
    font-weight: 600;
    font-size: 13px;
    outline: none;
    cursor: pointer;
}
.ctrl-input {
    width: 50px;
    border-bottom: 1px dashed var(--text-muted);
    text-align: center;
}

/* Report Container */
.report-container { max-width: 1540px; margin: 30px auto; padding: 0 20px; display: flex; flex-direction: column; gap: 32px; }

.month-card, .dashboard-card {
    background-color: var(--bg-panel);
    border-radius: 14px;
    border: 1px solid var(--border);
    overflow: hidden;
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.3);
    animation: fadeIn 0.35s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.month-header, .card-header { 
    background-color: rgba(0,0,0,0.25); 
    padding: 22px 30px; 
    border-bottom: 2px solid var(--accent); 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    flex-wrap: wrap; 
    gap: 16px;
}
.card-header.teal { border-bottom-color: var(--teal); }
.card-header.purple { border-bottom-color: var(--purple); }
.card-header.emerald { border-bottom-color: var(--emerald); }

.month-header h2, .card-header h2 { font-size: 24px; color: var(--text-main); font-weight: 700; letter-spacing: 0.5px;}
.month-summary { display: flex; gap: 24px; font-size: 14px; flex-wrap: wrap; }
.month-summary > div { display: flex; flex-direction: column; min-width: 100px; }
.summary-label { color: var(--text-muted); font-size: 11px; text-transform: uppercase; margin-bottom: 4px; font-weight: 600; letter-spacing: 0.5px; }
.summary-val { font-weight: 700; font-size: 19px; }
.val-danger { color: var(--danger); }
.val-success { color: var(--success); }
.val-warning { color: var(--warning); }
.val-purple { color: #c084fc; }
.val-teal { color: #2dd4bf; }
.val-emerald { color: #34d399; }

/* Tables */
.data-table-wrapper { padding: 0 30px 28px 30px; }
.section-title { font-size: 16px; margin: 26px 0 14px 0; color: #e2e8f0; font-weight: 600; padding-left: 10px; border-left: 4px solid var(--accent); }
.section-title.teal { border-left-color: var(--teal); }
.section-title.purple { border-left-color: var(--purple); }
.section-title.emerald { border-left-color: var(--emerald); }

table { width: 100%; border-collapse: collapse; text-align: left; }
th { padding: 12px 14px; font-size: 12px; color: var(--text-muted); font-weight: 600; border-bottom: 2px solid var(--border); white-space: nowrap; text-transform: uppercase; letter-spacing: 0.5px;}
td { padding: 12px 14px; font-size: 13.5px; color: var(--text-main); border-bottom: 1px solid var(--border); vertical-align: middle; }
tbody tr:hover { background-color: rgba(255,255,255,0.03); }

/* Utilities */
.sku-name { font-weight: 600; color: var(--text-main); display: block; font-size: 13.5px; margin-bottom: 2px;}
.sku-desc { font-size: 11.5px; color: var(--text-muted); }
.money { font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace; font-size: 14px;}
.num { font-weight: 600; }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-purple { color: #c084fc; }
.text-teal { color: #2dd4bf; }
.text-emerald { color: #34d399; }

/* Navigation Tabs */
.month-tabs {
    background-color: var(--bg-panel);
    padding: 14px 36px;
    display: flex;
    gap: 10px;
    overflow-x: auto;
    border-bottom: 1px solid var(--border);
    scrollbar-width: thin;
}
.month-tabs::-webkit-scrollbar { height: 6px; }
.month-tabs::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

.tab-btn {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}
.tab-btn:hover {
    color: var(--text-main);
    border-color: var(--text-muted);
}
.tab-btn.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
    box-shadow: 0 4px 12px var(--accent-glow);
}

.view-section { display: none; }
.view-section.active { display: block; animation: fadeIn 0.35s ease forwards; }

.overview-card {
    background-color: var(--bg-panel);
    border-radius: 14px;
    border: 1px solid var(--border);
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.3);
    padding: 28px;
    width: 100%;
}
.overview-card h2 {
    font-size: 22px;
    color: var(--text-main);
    margin-bottom: 20px;
    border-left: 4px solid var(--purple);
    padding-left: 12px;
}
.chart-container {
    height: 400px;
    width: 100%;
    margin-top: 24px;
    position: relative;
}

/* Interactive Simulator Sliders */
.sim-panel {
    background: #0f172a;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 28px;
}
.sim-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 16px;
}
.sim-control {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.sim-control label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
}
.sim-control label span.val {
    color: var(--teal);
    font-size: 16px;
    font-weight: 700;
}
.sim-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: #1e293b;
    outline: none;
    cursor: pointer;
}
.sim-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--teal);
    cursor: pointer;
    box-shadow: 0 0 10px rgba(20, 184, 166, 0.6);
}

/* Metric KPI Grid */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.kpi-card {
    background: #0f172a;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
}
.kpi-card .kpi-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 600;
    margin-bottom: 6px;
}
.kpi-card .kpi-val {
    font-size: 22px;
    font-weight: 700;
}
.kpi-card .kpi-sub {
    font-size: 11.5px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Search and Filter Inputs */
.filter-bar {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
    margin-bottom: 16px;
    padding: 12px 20px;
    background: #0f172a;
    border-radius: 8px;
    border: 1px solid var(--border);
}
.filter-input {
    background: #1e293b;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 12px;
    color: #fff;
    font-size: 13px;
    outline: none;
}
.filter-input:focus { border-color: var(--accent); }

@media print {
    * { animation: none !important; transition: none !important; opacity: 1 !important; }
    body { background: #fff !important; color: #000 !important; }
    .app-header, .month-tabs, button, .tab-btn, .sim-panel, .filter-bar { display: none !important; }
    .view-section { display: none !important; }
    .view-section.active { display: block !important; }
    .month-card, .dashboard-card, .overview-card { box-shadow: none !important; border: none !important; background: transparent !important; margin: 0 !important; padding: 0 !important; }
    * { color: #000 !important; }
    .val-success, .text-success { color: #16a34a !important; }
    .val-danger, .text-danger, .danger, .money.text-danger { color: #dc2626 !important; }
    .val-warning { color: #ca8a04 !important; }
    th { border-bottom: 2px solid #aaa !important; background: transparent !important; }
    td { border-bottom: 1px solid #ddd !important; }
    .month-header, .card-header { background: transparent !important; border-bottom: 2px solid #000 !important; }
}