/* === Theme Variables === */
[data-theme="dark"] {
    --bg: #0b0d14;
    --surface: #12151e;
    --surface2: #1a1e2e;
    --surface3: #222738;
    --border: #2a2f42;
    --text: #e8eaf0;
    --text-secondary: #9ba1b5;
    --muted: #6b7280;
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.15);
    --green: #22c55e;
    --green-bg: rgba(34, 197, 94, 0.1);
    --red: #ef4444;
    --red-bg: rgba(239, 68, 68, 0.1);
    --yellow: #eab308;
    --gradient-start: #6366f1;
    --gradient-end: #8b5cf6;
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
}
[data-theme="light"] {
    --bg: #f5f6fa;
    --surface: #ffffff;
    --surface2: #f0f1f5;
    --surface3: #e8e9ef;
    --border: #dfe1e8;
    --text: #1a1d2e;
    --text-secondary: #5a5f72;
    --muted: #8b8fa3;
    --accent: #4f46e5;
    --accent-hover: #6366f1;
    --accent-glow: rgba(79, 70, 229, 0.1);
    --green: #16a34a;
    --green-bg: rgba(22, 163, 74, 0.08);
    --red: #dc2626;
    --red-bg: rgba(220, 38, 38, 0.08);
    --yellow: #ca8a04;
    --gradient-start: #4f46e5;
    --gradient-end: #7c3aed;
    --shadow: 0 4px 24px rgba(0,0,0,0.08);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
}

/* Logo visibility per theme */
[data-theme="dark"] .logo-light { display: none; }
[data-theme="dark"] .logo-dark { display: block; }
[data-theme="light"] .logo-dark { display: none; }
[data-theme="light"] .logo-light { display: block; }

/* Theme toggle icons */
[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    line-height: 1.5;
    overflow-x: hidden;
}
a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }

/* === Sidebar === */
.sidebar {
    width: 240px;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 200;
    transition: transform 0.3s ease;
}
.sidebar-header {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid var(--border);
}
.logo-link { display: block; }
.logo-img {
    height: 40px;
    width: auto;
    margin: 0 auto;
    display: block;
}
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem 0.5rem;
}
.nav-group-label {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--muted);
    padding: 1rem 0.75rem 0.35rem;
}
.nav-item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.55rem 0.75rem;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 500;
    transition: all 0.2s;
    margin-bottom: 2px;
}
.nav-item:hover {
    background: var(--surface2);
    color: var(--text);
}
.nav-item.active {
    background: var(--accent-glow);
    color: var(--accent);
    font-weight: 600;
}
.nav-item svg { flex-shrink: 0; opacity: 0.7; }
.nav-item.active svg { opacity: 1; }
.sidebar-footer {
    padding: 0.75rem;
    border-top: 1px solid var(--border);
}
.theme-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}
.theme-toggle:hover { background: var(--surface3); color: var(--text); }

/* Mobile menu */
.mobile-menu-btn {
    display: none;
    position: fixed;
    top: 1rem;
    left: 1rem;
    z-index: 300;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.5rem;
    color: var(--text);
    cursor: pointer;
}

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); box-shadow: var(--shadow); }
    .mobile-menu-btn { display: block; }
    .main-content { margin-left: 0 !important; padding: 0.75rem !important; padding-top: 3.5rem !important; max-width: 100vw !important; width: 100% !important; }

    /* Typography */
    h1 { font-size: 1.25rem; margin-bottom: 1rem; }

    /* Stats: 2 columns on mobile */
    .stats { grid-template-columns: 1fr 1fr; gap: 0.6rem; margin-bottom: 1rem; overflow: hidden; }
    .stat { padding: 0.85rem; min-width: 0; }
    .stat .value { font-size: 1.1rem; word-break: break-word; }
    .stat .label { font-size: 0.7rem; }

    /* Dashboard grid: single column */
    .dashboard-grid { grid-template-columns: 1fr; gap: 0.75rem; }

    /* Cards */
    .card { padding: 1rem; border-radius: 10px; margin-bottom: 0.75rem; }

    /* Welcome hero */
    .welcome-hero { padding: 1.25rem 1rem; border-radius: 10px; margin-bottom: 1rem; }
    .welcome-hero h1 { font-size: 1.15rem; }
    .welcome-hero p { font-size: 0.85rem; }

    /* Tables: horizontal scroll */
    .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 0 -0.5rem; padding: 0 0.5rem; max-width: calc(100vw - 1.5rem); }
    table { min-width: 400px; }
    th, td { padding: 0.45rem 0.35rem; font-size: 0.78rem; white-space: nowrap; }

    /* Card detail: stack image above info */
    .card-detail-grid { grid-template-columns: 1fr !important; gap: 1rem !important; }
    .card-detail-grid > div:first-child { max-width: 180px; margin: 0 auto; }
    .card-detail-grid .stats { grid-template-columns: 1fr 1fr 1fr; }
    .card-detail-grid .stats .stat .value { font-size: 1.1rem; }

    /* Condition chips */
    .condition-prices { gap: 0.35rem; }
    .condition-chip { min-width: 58px; padding: 0.3rem 0.5rem; }
    .condition-chip .cond-price { font-size: 0.8rem; }

    /* Buttons */
    .btn { padding: 0.5rem 0.85rem; font-size: 0.82rem; }
    .btn-sm { padding: 0.3rem 0.55rem; font-size: 0.75rem; }

    /* Search */
    .search-box { flex-wrap: wrap; }
    .search-box input { font-size: 0.88rem; padding: 0.6rem 0.75rem 0.6rem 2.2rem; min-width: 0; width: 100%; }

    /* Forms */
    .form-row { grid-template-columns: 1fr 1fr; }

    /* Card images */
    .card-img-sm { width: 40px; height: 56px; }

    /* Portfolio chart */
    .portfolio-chart-grid { grid-template-columns: 1fr !important; gap: 1rem !important; }
    .portfolio-chart-grid > div:first-child { max-width: 220px !important; }
    .chart-container { height: 200px; }

    /* Prevent any overflow */
    .card { min-width: 0; max-width: 100%; overflow: hidden; }
    .card .table-wrap { overflow-x: auto; }

    /* Flex wrapping */
    .flex { flex-wrap: wrap; gap: 0.5rem; }
}

/* Small phones */
@media (max-width: 400px) {
    .stats { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .card-detail-grid .stats { grid-template-columns: 1fr; }
}

/* Backdrop overlay when sidebar is open on mobile */
.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 199;
}
@media (max-width: 768px) {
    .sidebar.open ~ .sidebar-backdrop { display: block; }
}

/* === Main Content === */
.main-content {
    margin-left: 240px;
    flex: 1;
    min-height: 100vh;
    padding: 2rem 2.5rem;
    max-width: 1400px;
    min-width: 0;
}

/* === Typography === */
h1 { font-size: 1.75rem; font-weight: 700; margin-bottom: 1.5rem; letter-spacing: -0.02em; }
h2 { font-size: 1.15rem; font-weight: 600; color: var(--text); margin-bottom: 0.75rem; }
h3 { font-size: 1rem; font-weight: 600; }
.page-subtitle { color: var(--text-secondary); font-size: 0.9rem; margin-top: -1rem; margin-bottom: 1.5rem; }

/* === Cards / Panels === */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.25rem;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s;
}
.card:hover { box-shadow: var(--shadow); }
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}
.card-header h2 { margin-bottom: 0; }

/* === Stats Grid === */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.stat {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}
.stat::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    opacity: 0;
    transition: opacity 0.2s;
}
.stat:hover::before { opacity: 1; }
.stat .value {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.2;
}
.stat .label {
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    margin-top: 0.35rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.stat-accent .value { color: var(--accent); }

/* Positive / Negative */
.positive { color: var(--green); }
.negative { color: var(--red); }

/* === Dashboard Grid === */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}
@media (max-width: 900px) { .dashboard-grid { grid-template-columns: 1fr; } }

/* === Tables === */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.75rem 0.75rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-size: 0.72rem; text-transform: uppercase; font-weight: 700; letter-spacing: 0.06em; }
tbody tr { transition: background 0.15s; }
tbody tr:hover { background: var(--surface2); }
tbody tr:last-child td { border-bottom: none; }

/* === Forms / Inputs === */
input, select, textarea {
    background: var(--surface2);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.55rem 0.85rem;
    border-radius: 8px;
    font-size: 0.88rem;
    transition: border-color 0.2s, box-shadow 0.2s;
    font-family: inherit;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-group { margin-bottom: 0.75rem; }
.form-group label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 500;
    margin-bottom: 0.3rem;
}
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 0.75rem;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.55rem 1.15rem;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    font-family: inherit;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    box-shadow: 0 2px 8px rgba(99,102,241,0.25);
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 4px 14px rgba(99,102,241,0.35); color: white; }
.btn:active { transform: translateY(0); }
.btn-sm { padding: 0.35rem 0.7rem; font-size: 0.8rem; }
.btn-danger { background: var(--red); box-shadow: none; }
.btn-danger:hover { background: #dc2626; box-shadow: 0 4px 14px rgba(239,68,68,0.3); }
.btn-success { background: var(--green); box-shadow: none; }
.btn-success:hover { background: #16a34a; }
.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    box-shadow: none;
}
.btn-outline:hover { background: var(--surface2); color: var(--text); transform: none; box-shadow: none; }
.btn-ghost { background: transparent; color: var(--text-secondary); box-shadow: none; padding: 0.4rem 0.7rem; }
.btn-ghost:hover { background: var(--surface2); color: var(--text); transform: none; box-shadow: none; }

/* === Search Box === */
.search-box {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    position: relative;
}
.search-box input {
    flex: 1;
    padding: 0.7rem 1rem 0.7rem 2.5rem;
    font-size: 0.95rem;
    border-radius: 10px;
    background: var(--surface);
    border: 1px solid var(--border);
}
.search-box input:focus { border-color: var(--accent); }
.search-icon {
    position: absolute;
    left: 0.85rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted);
    pointer-events: none;
}

/* === Tags / Badges === */
.tag {
    display: inline-block;
    padding: 0.2rem 0.55rem;
    border-radius: 6px;
    font-size: 0.72rem;
    font-weight: 600;
    background: var(--surface2);
    color: var(--text-secondary);
}
.deal-tag { background: var(--green-bg); color: var(--green); }
.tag-accent { background: var(--accent-glow); color: var(--accent); }

/* === Card Images === */
.card-img { width: 80px; height: 112px; object-fit: cover; border-radius: 6px; }
.card-img-sm { width: 50px; height: 70px; object-fit: cover; border-radius: 5px; }

/* === Utility === */
.flex { display: flex; align-items: center; gap: 0.75rem; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.empty {
    text-align: center;
    padding: 3rem 2rem;
    color: var(--muted);
    font-size: 0.95rem;
}
.empty svg { margin-bottom: 0.75rem; opacity: 0.4; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; }

/* === Portfolio Chart Area === */
.portfolio-chart-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: center; }
.chart-container { position: relative; height: 250px; margin: 1rem 0; }

/* === Condition Price Chips === */
.condition-prices {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}
.condition-chip {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.4rem 0.75rem;
    text-align: center;
    min-width: 70px;
}
.condition-chip .cond-label {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--muted);
    letter-spacing: 0.05em;
}
.condition-chip .cond-price {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
}

/* === Welcome Hero (Dashboard) === */
.welcome-hero {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: 14px;
    padding: 2rem 2.5rem;
    margin-bottom: 1.5rem;
    color: white;
    position: relative;
    overflow: hidden;
}
.welcome-hero h1 { color: white; margin-bottom: 0.3rem; font-size: 1.5rem; }
.welcome-hero p { opacity: 0.85; font-size: 0.95rem; margin-bottom: 0; }
.welcome-hero::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 300px;
    height: 300px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
}

/* HTMX */
.htmx-indicator { display: none; }
.htmx-request .htmx-indicator { display: inline; }

/* Details / Accordion */
details { border-radius: 8px; }
details summary {
    cursor: pointer;
    color: var(--accent);
    font-weight: 500;
    padding: 0.5rem 0;
}
details summary:hover { color: var(--accent-hover); }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }