/* ═══════════════════════════════════════════════════════════════════════════
   Index-Edge.com — Custom Stylesheet
   Built on Bootstrap 5.3  |  Font: Inter  |  Scheme: Navy + Amber
   ═══════════════════════════════════════════════════════════════════════════ */

/* ── CSS Variables ──────────────────────────────────────────────────────── */
:root {
    --navy:          #0d2137;
    --navy-700:      #1a3a5c;
    --navy-600:      #1e4976;
    --navy-100:      #e8edf2;
    --amber:         #f59e0b;
    --amber-400:     #fbbf24;
    --amber-600:     #d97706;
    --bg:            #f1f5f9;
    --surface:       #ffffff;
    --text:          #0f172a;
    --text-muted:    #64748b;
    --border:        #e2e8f0;
    --positive:      #059669;
    --negative:      #dc2626;
    --chart-port:    #f59e0b;
    --chart-bench:   #94a3b8;

    /* Bootstrap overrides */
    --bs-primary:    #0d2137;
    --bs-font-sans-serif: 'Inter', system-ui, -apple-system, sans-serif;
    --bs-body-font-family: var(--bs-font-sans-serif);
    --bs-body-bg:    #f1f5f9;
    --bs-body-color: #0f172a;
}

/* ── Base ───────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
    -webkit-font-smoothing: antialiased;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

/* Tabular figures for numbers */
.num, td, .metric-value, .badge {
    font-feature-settings: 'tnum';
    font-variant-numeric: tabular-nums;
}

/* ── Navbar ─────────────────────────────────────────────────────────────── */
.navbar-ie {
    background: var(--navy);
    border-bottom: 3px solid var(--amber);
    padding: 0.75rem 0;
    box-shadow: 0 2px 16px rgba(0,0,0,0.18);
}

.navbar-ie .navbar-brand {
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--surface) !important;
    display: flex;
    align-items: center;
    gap: 0;
}

.navbar-ie .brand-accent {
    color: var(--amber);
}

.navbar-ie .nav-link {
    color: rgba(255,255,255,0.75) !important;
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 0.9rem !important;
    border-radius: 6px;
    transition: color 0.15s, background 0.15s;
}

.navbar-ie .nav-link:hover,
.navbar-ie .nav-link.active {
    color: var(--amber) !important;
    background: rgba(245,158,11,0.1);
}

.navbar-ie .navbar-toggler {
    border-color: rgba(255,255,255,0.3);
}

.navbar-ie .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255,255,255,0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ── Hero ───────────────────────────────────────────────────────────────── */
.portfolio-hero {
    background: var(--navy);
    color: var(--surface);
    padding: 2.5rem 0 2rem;
    position: relative;
    overflow: hidden;
}

.portfolio-hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--amber), var(--amber-600));
}

.portfolio-hero h1 {
    font-size: 1.85rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 0.5rem;
}

.portfolio-hero .lead {
    color: rgba(255,255,255,0.70);
    font-size: 0.95rem;
    font-weight: 400;
}

.badge-strategy {
    background: rgba(245,158,11,0.18);
    color: var(--amber-400);
    border: 1px solid rgba(245,158,11,0.35);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 0.3em 0.7em;
    border-radius: 20px;
}

.badge-updated {
    background: rgba(255,255,255,0.08);
    color: rgba(255,255,255,0.55);
    font-size: 0.75rem;
    padding: 0.3em 0.7em;
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.12);
}

/* ── Metric Cards ───────────────────────────────────────────────────────── */
.metrics-row {
    margin-top: -1.25rem;
    margin-bottom: 2rem;
}

.metric-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    height: 100%;
    transition: transform 0.15s, box-shadow 0.15s;
}

.metric-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.metric-label {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
}

.metric-value {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1;
    margin-bottom: 0.25rem;
}

.metric-value.positive { color: var(--positive); }
.metric-value.negative { color: var(--negative); }
.metric-value.neutral  { color: var(--navy); }

.metric-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ── Cards (general) ────────────────────────────────────────────────────── */
.ie-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.06);
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.ie-card-header {
    padding: 1.1rem 1.5rem 1rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.ie-card-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--navy);
    letter-spacing: -0.01em;
    margin: 0;
}

.ie-card-body {
    padding: 1.25rem 1.5rem;
}

/* ── Chart container ────────────────────────────────────────────────────── */
.chart-container {
    position: relative;
    width: 100%;
    height: 380px;
}

.chart-container-bar {
    position: relative;
    width: 100%;
    height: 300px;
}

/* Range buttons */
.range-btn {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.65rem;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
}

.range-btn:hover {
    border-color: var(--amber);
    color: var(--amber-600);
}

.range-btn.active {
    background: var(--amber);
    border-color: var(--amber);
    color: var(--navy);
}

/* Chart legend */
.chart-legend {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.chart-legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 500;
}

.legend-line {
    display: inline-block;
    width: 24px;
    height: 3px;
    border-radius: 2px;
}

.legend-line.portfolio  { background: var(--chart-port); }
.legend-line.benchmark  { background: var(--chart-bench); }

/* ── Period returns table ────────────────────────────────────────────────── */
.returns-table {
    width: 100%;
    font-size: 0.85rem;
}

.returns-table th {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 0.5rem 0.75rem;
    border-bottom: 2px solid var(--border);
    text-align: right;
}

.returns-table th:first-child { text-align: left; }

.returns-table td {
    padding: 0.65rem 0.75rem;
    border-bottom: 1px solid var(--border);
    text-align: right;
    font-weight: 500;
}

.returns-table td:first-child {
    text-align: left;
    color: var(--text-muted);
    font-weight: 400;
}

.returns-table tr:last-child td { border-bottom: none; }
.returns-table .ret-positive { color: var(--positive); }
.returns-table .ret-negative { color: var(--negative); }

/* ── Annual returns table (text alternative) ─────────────────────────────── */
.annual-table {
    font-size: 0.82rem;
    width: 100%;
}

.annual-table th {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 0.5rem 0.75rem;
    border-bottom: 2px solid var(--border);
    text-align: right;
}

.annual-table th:first-child { text-align: left; }

.annual-table td {
    padding: 0.55rem 0.75rem;
    border-bottom: 1px solid var(--border);
    text-align: right;
}

.annual-table td:first-child { text-align: left; font-weight: 500; }
.annual-table tr:last-child td { border-bottom: none; }

/* ── Loading skeleton ────────────────────────────────────────────────────── */
.skeleton {
    background: linear-gradient(90deg, #e2e8f0 25%, #f1f5f9 50%, #e2e8f0 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 6px;
}

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

.skeleton-text { height: 1em; margin-bottom: 0.5em; }
.skeleton-chart { height: 380px; }

/* ── Holdings table ──────────────────────────────────────────────────────── */
.holdings-table {
    font-size: 0.85rem;
    width: 100%;
}

.holdings-table th {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 0.6rem 1rem;
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
}

.holdings-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.holdings-table tr:last-child td { border-bottom: none; }
.holdings-table tr:hover td { background: #fafbfc; }

.symbol-badge {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--navy);
    background: var(--navy-100);
    padding: 0.2em 0.55em;
    border-radius: 5px;
    letter-spacing: 0.02em;
}

/* ── Paywall ─────────────────────────────────────────────────────────────── */
.paywall-banner {
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-700) 100%);
    border: 1px solid rgba(245,158,11,0.3);
    border-radius: 16px;
    padding: 3rem 2rem;
    text-align: center;
    color: var(--surface);
}

.paywall-banner h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.paywall-banner p {
    color: rgba(255,255,255,0.7);
    margin-bottom: 1.5rem;
}

.btn-amber {
    background: var(--amber);
    color: var(--navy);
    font-weight: 700;
    border: none;
    padding: 0.75rem 2rem;
    border-radius: 8px;
    font-size: 0.95rem;
    transition: background 0.15s, transform 0.1s;
    text-decoration: none;
    display: inline-block;
}

.btn-amber:hover {
    background: var(--amber-400);
    color: var(--navy);
    transform: translateY(-1px);
}

/* ── History page ────────────────────────────────────────────────────────── */
.rebalance-row td { font-size: 0.83rem; }

.tag-entry {
    background: rgba(5,150,105,0.1);
    color: var(--positive);
    border: 1px solid rgba(5,150,105,0.25);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.15em 0.5em;
    border-radius: 4px;
    margin: 0.1em;
    display: inline-block;
}

.tag-exit {
    background: rgba(220,38,38,0.08);
    color: var(--negative);
    border: 1px solid rgba(220,38,38,0.2);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.15em 0.5em;
    border-radius: 4px;
    margin: 0.1em;
    display: inline-block;
}

.tag-hold {
    background: rgba(100,116,139,0.08);
    color: var(--text-muted);
    border: 1px solid rgba(100,116,139,0.2);
    font-size: 0.72rem;
    font-weight: 500;
    padding: 0.15em 0.5em;
    border-radius: 4px;
    margin: 0.1em;
    display: inline-block;
}

/* ── Footer ──────────────────────────────────────────────────────────────── */
.site-footer {
    background: var(--navy);
    color: rgba(255,255,255,0.55);
    padding: 2.5rem 0 1.5rem;
    margin-top: 4rem;
    font-size: 0.78rem;
}

.site-footer .footer-brand {
    font-size: 1rem;
    font-weight: 700;
    color: var(--surface);
    margin-bottom: 0.5rem;
}

.site-footer .footer-brand span { color: var(--amber); }

.site-footer a {
    color: rgba(255,255,255,0.55);
    text-decoration: none;
    transition: color 0.15s;
}

.site-footer a:hover { color: var(--amber); }

.disclaimer {
    background: rgba(0,0,0,0.2);
    border-left: 3px solid var(--amber);
    padding: 0.75rem 1rem;
    border-radius: 0 6px 6px 0;
    font-size: 0.72rem;
    line-height: 1.5;
    color: rgba(255,255,255,0.45);
    margin-top: 1.5rem;
}

/* ── Homepage ────────────────────────────────────────────────────────────── */
.hero-home {
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-700) 100%);
    color: var(--surface);
    padding: 5rem 0 4rem;
    position: relative;
    overflow: hidden;
}

.hero-home::before {
    content: '';
    position: absolute;
    top: -60px; right: -60px;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(245,158,11,0.12) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-home h1 {
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.1;
}

.hero-home h1 .accent { color: var(--amber); }

.hero-home .lead {
    font-size: 1.05rem;
    color: rgba(255,255,255,0.70);
    max-width: 560px;
}

.portfolio-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1.5rem;
    text-decoration: none;
    color: var(--text);
    display: block;
    transition: transform 0.18s, box-shadow 0.18s, border-color 0.18s;
    height: 100%;
}

.portfolio-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(13,33,55,0.12);
    border-color: var(--amber);
    color: var(--text);
}

.portfolio-card .pc-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--navy);
    margin-bottom: 0.25rem;
    letter-spacing: -0.01em;
}

.portfolio-card .pc-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

.portfolio-card .pc-cagr {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    color: var(--positive);
    line-height: 1;
}

.portfolio-card .pc-cagr-label {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.portfolio-card .pc-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    padding-top: 1rem;
    margin-top: 1rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
}

/* ── Utilities ───────────────────────────────────────────────────────────── */
.text-positive { color: var(--positive) !important; }
.text-negative { color: var(--negative) !important; }
.text-navy     { color: var(--navy) !important; }
.text-amber    { color: var(--amber) !important; }
.bg-navy       { background: var(--navy) !important; }
.section-gap   { margin-bottom: 2rem; }

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 767px) {
    .portfolio-hero h1 { font-size: 1.4rem; }
    .metric-value { font-size: 1.4rem; }
    .chart-container { height: 260px; }
    .chart-container-bar { height: 220px; }
    .ie-card-body { padding: 1rem; }
    .ie-card-header { padding: 0.85rem 1rem; }
    .metrics-row { margin-top: -0.75rem; }
    .hero-home { padding: 3rem 0 2.5rem; }
}