/* AssetBridge — Design System */

/* ── Design Tokens ── */
:root {
    /* Surfaces */
    --bg-page: #f0f2f5;
    --bg-card: #ffffff;
    --bg-card-hover: #f8fafc;
    --bg-input: #ffffff;
    --bg-header: linear-gradient(135deg, #667eea 0%, #764ba2 100%);

    /* Text */
    --text-primary: #1a1a2e;
    --text-secondary: #4a5568;
    --text-muted: #94a3b8;
    --text-on-primary: #ffffff;

    /* Borders */
    --border-default: #e2e8f0;
    --border-light: #f1f5f9;

    /* Semantic Colors */
    --color-invested: #6366f1;
    --color-profit: #10b981;
    --color-loss: #ef4444;
    --color-dividend: #f59e0b;
    --color-current: #3b82f6;
    --color-btc: #f7931a;

    /* Interactive */
    --color-primary: #6366f1;
    --color-primary-hover: #4f46e5;
    --color-primary-soft: #eef2ff;
    --color-danger: #ef4444;
    --color-danger-soft: #fef2f2;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
}

/* ── Dark Theme ── */
[data-theme="dark"] {
    --bg-page: #0f172a;
    --bg-card: #1e293b;
    --bg-card-hover: #2d3a4f;
    --bg-input: #1e293b;
    --bg-header: linear-gradient(135deg, #4338ca 0%, #5b21b6 100%);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --border-default: #334155;
    --border-light: #1e293b;

    --color-primary-soft: rgba(99,102,241,0.15);
    --color-danger-soft: rgba(239,68,68,0.15);

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 2px 8px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.5);
}

/* ── Base ── */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-page);
    color: var(--text-primary);
    line-height: 1.6;
}
.container { max-width: 1400px; margin: 0 auto; padding: 20px; }

/* ── Layout ── */
.page-layout {
    display: flex;
    align-items: flex-start;
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    gap: 20px;
}
.main-content { flex: 1; min-width: 0; }

/* ── Sidebar ── */
.sidebar {
    width: 180px;
    flex-shrink: 0;
    position: sticky;
    top: 20px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-default);
    overflow: hidden;
}
.sidebar-section {
    padding: 8px 0;
    border-bottom: 1px solid var(--border-light);
}
.sidebar-section:last-child { border-bottom: none; }
.sidebar-label {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--text-muted);
    padding: 8px 16px 4px;
}
.sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: all 0.15s;
    border-left: 3px solid transparent;
    justify-content: space-between;
}
.sidebar-link:hover { background: var(--color-primary-soft); color: var(--color-primary); }
.sidebar-link.active {
    background: var(--color-primary-soft);
    color: var(--color-primary);
    border-left-color: var(--color-primary);
    font-weight: 600;
}
.sidebar-sub { display: flex; flex-direction: column; padding: 2px 0; gap: 0; }
.sidebar-sub a { display: block; padding: 8px 16px 8px 20px; margin-left: 12px; text-decoration: none; color: var(--text-secondary); font-size: 13px; font-weight: 500; border-left: 3px solid transparent; transition: all 0.15s; }
.sidebar-sub a:hover { background: var(--color-primary-soft); color: var(--color-primary); }
.sidebar-sub a.active { background: var(--color-primary-soft); color: var(--color-primary); border-left-color: var(--color-primary); font-weight: 600; }

/* Sidebar chevron */
.sidebar-chevron {
    display: flex;
    align-items: center;
    color: var(--text-muted);
    transition: transform 0.2s ease, color 0.15s;
    flex-shrink: 0;
    padding: 2px;
    border-radius: 3px;
}
.sidebar-chevron:hover { color: var(--color-primary); background: var(--color-primary-soft); }
.sidebar-item.open > .sidebar-link .sidebar-chevron,
.sidebar-item.open > a .sidebar-chevron { transform: rotate(90deg); }
.sidebar-item > .sidebar-sub { display: none; }
.sidebar-item.open > .sidebar-sub { display: block; }
.sidebar-item.open { background: var(--color-primary-soft); margin: 2px 4px; border-radius: var(--radius-sm); }

/* ── Header ── */
header {
    background: var(--bg-header);
    color: var(--text-on-primary);
}
header .container { padding: 10px 20px; display: flex; align-items: center; justify-content: space-between; }

/* Portfolio dropdown */
.portfolio-menu { position: relative; }
.portfolio-trigger {
    display: flex; align-items: center; gap: 8px;
    background: rgba(255,255,255,0.2);
    border: 1px solid rgba(255,255,255,0.3);
    color: var(--text-on-primary); padding: 8px 14px; border-radius: var(--radius-sm);
    cursor: pointer; font-size: 15px; font-weight: 700;
    transition: background 0.15s; white-space: nowrap;
}
.portfolio-trigger:hover { background: rgba(255,255,255,0.25); }
.portfolio-trigger svg { opacity: 0.7; flex-shrink: 0; }

.portfolio-dropdown {
    display: none; position: absolute; top: calc(100% + 6px); left: 0;
    background: var(--bg-card); border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg); border: 1px solid var(--border-default);
    min-width: 240px; z-index: 1000; overflow: hidden;
}
.portfolio-dropdown.open { display: block; }

.pd-section { padding: 6px 0; border-bottom: 1px solid var(--border-light); }
.pd-section:last-child { border-bottom: none; }
.pd-label {
    font-size: 10px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.8px; color: var(--text-muted); padding: 4px 14px 6px;
}
.pd-item {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 14px; color: var(--text-primary); font-size: 14px;
    cursor: pointer; background: none; border: none;
    width: 100%; text-align: left; transition: background 0.1s;
    text-decoration: none;
}
.pd-item:hover { background: var(--color-primary-soft); color: var(--color-primary); }
.pd-item.active-portfolio { font-weight: 600; color: var(--color-primary); }
.pd-item.active-portfolio .pd-check { opacity: 1; }
.pd-check { opacity: 0; color: var(--color-primary); flex-shrink: 0; }
.pd-item.danger:hover { background: var(--color-danger-soft); color: var(--color-danger); }
.pd-item svg { flex-shrink: 0; opacity: 0.5; }
.pd-item:hover svg { opacity: 1; }
.pd-item.danger:hover svg { opacity: 1; }

.pd-rename-row { display: flex; align-items: center; gap: 6px; padding: 8px 14px; }
.pd-rename-input {
    flex: 1; padding: 6px 8px; border: 1px solid var(--border-default);
    border-radius: var(--radius-sm); font-size: 14px; color: var(--text-primary);
    background: var(--bg-input); outline: none;
}
.pd-rename-input:focus { border-color: var(--color-primary); }
.pd-rename-save {
    padding: 6px 10px; background: var(--color-primary); color: var(--text-on-primary);
    border: none; border-radius: var(--radius-sm); font-size: 13px;
    cursor: pointer; white-space: nowrap;
}
.pd-rename-save:hover { background: var(--color-primary-hover); }

/* User dropdown */
.user-menu { position: relative; display: flex; align-items: center; gap: 10px; }
.user-menu-trigger {
    display: flex; align-items: center; gap: 8px;
    background: transparent; border: 1px solid rgba(255,255,255,0.15);
    color: var(--text-on-primary); padding: 7px 12px; border-radius: var(--radius-sm);
    cursor: pointer; font-size: 13px; font-weight: 400;
    transition: background 0.15s; white-space: nowrap;
}
.user-menu-trigger:hover { background: rgba(255,255,255,0.25); }
.user-menu-trigger svg { opacity: 0.7; flex-shrink: 0; }
.app-version { font-size: 11px; opacity: 0.45; letter-spacing: 0.03em; white-space: nowrap; }

.user-dropdown {
    display: none; position: absolute; top: calc(100% + 6px); right: 0;
    background: var(--bg-card); border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg); border: 1px solid var(--border-default);
    min-width: 220px; z-index: 1000; overflow: hidden;
}
.user-dropdown.open { display: block; }
.user-dropdown-section { padding: 8px 0; border-bottom: 1px solid var(--border-light); }
.user-dropdown-section:last-child { border-bottom: none; }
.user-dropdown-label {
    font-size: 10px; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.8px; color: var(--text-muted); padding: 4px 16px 6px;
}
.user-dropdown-item {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 16px; color: var(--text-primary); font-size: 14px;
    text-decoration: none; cursor: pointer;
    background: none; border: none; width: 100%; text-align: left;
    transition: background 0.1s;
}
.user-dropdown-item:hover { background: var(--color-primary-soft); color: var(--color-primary); }
.user-dropdown-item.danger:hover { background: var(--color-danger-soft); color: var(--color-danger); }
.user-dropdown-item svg { flex-shrink: 0; opacity: 0.6; }
.user-dropdown-item:hover svg { opacity: 1; }
.dropdown-currency,
.dropdown-theme { display: flex; gap: 6px; padding: 8px 16px; }
.dropdown-currency button,
.dropdown-theme button {
    flex: 1; padding: 6px; border: 1px solid var(--border-default); border-radius: var(--radius-sm);
    background: var(--bg-card); color: var(--text-secondary); font-size: 13px; font-weight: 500;
    cursor: pointer; transition: all 0.15s;
}
.dropdown-currency button:hover,
.dropdown-theme button:hover { border-color: var(--color-primary); color: var(--color-primary); }
.dropdown-currency button.active,
.dropdown-theme button.active { background: var(--color-primary); border-color: var(--color-primary); color: var(--text-on-primary); }

/* Hamburger */
.hamburger-btn {
    display: none;
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.25);
    color: var(--text-on-primary); padding: 8px; border-radius: var(--radius-sm);
    cursor: pointer; align-items: center; justify-content: center;
    flex-shrink: 0; transition: background 0.15s;
}
.hamburger-btn:hover { background: rgba(255,255,255,0.28); }

/* Sidebar overlay (mobile) */
.sidebar-overlay {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,0.4); z-index: 800;
}
.sidebar-overlay.active { display: block; }

/* Modal */
.modal-backdrop {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,0.5); z-index: 2000;
    align-items: center; justify-content: center;
}
.modal-backdrop.open { display: flex; }
.modal {
    background: var(--bg-card); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg); border: 1px solid var(--border-default);
    padding: 28px; width: 100%; max-width: 380px;
    animation: modalIn 0.15s ease;
}
@keyframes modalIn { from { opacity:0; transform: scale(0.95); } to { opacity:1; transform: scale(1); } }
.modal-title { font-size: 17px; font-weight: 700; color: var(--text-primary); margin-bottom: 16px; }
.modal-input {
    width: 100%; padding: 10px 12px; border: 1px solid var(--border-default);
    border-radius: var(--radius-sm); font-size: 15px; color: var(--text-primary);
    background: var(--bg-input); outline: none; box-sizing: border-box; margin-bottom: 16px;
}
.modal-input:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(99,102,241,0.12); }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; }
.modal-cancel {
    padding: 9px 18px; border: 1px solid var(--border-default); border-radius: var(--radius-sm);
    background: var(--bg-card); color: var(--text-secondary); font-size: 14px; cursor: pointer;
}
.modal-cancel:hover { background: var(--bg-card-hover); }
.modal-confirm {
    padding: 9px 18px; border: none; border-radius: var(--radius-sm);
    background: var(--color-primary); color: var(--text-on-primary); font-size: 14px;
    font-weight: 600; cursor: pointer;
}
.modal-confirm:hover { background: var(--color-primary-hover); }
.modal-error { color: var(--color-loss); font-size: 13px; margin-bottom: 10px; display: none; }

/* ── Content ── */
.upload-form {
    background: var(--bg-card); padding: 20px; border-radius: var(--radius-md);
    border: 1px solid var(--border-default);
    display: flex; gap: 10px; align-items: center;
    flex-wrap: wrap; margin-bottom: 20px;
}
.upload-form input[type="file"] { flex: 1; min-width: 200px; }
.upload-form button {
    background: var(--color-primary);
    color: var(--text-on-primary); border: none; padding: 10px 20px;
    border-radius: var(--radius-sm); cursor: pointer; font-weight: 600;
}
.upload-form button:hover { background: var(--color-primary-hover); }

/* Form inputs */
.form-input {
    padding: 8px;
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    background: var(--bg-input);
    color: var(--text-primary);
}
.form-input:focus { outline: none; border-color: var(--color-primary); }
.form-input--md { width: 130px; }
.form-input--flex { flex: 1; min-width: 150px; }

.message { padding: 10px 15px; border-radius: var(--radius-sm); margin-bottom: 20px; }
.message.success { background: #ecfdf5; color: #065f46; border: 1px solid #a7f3d0; }
.message.error { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
[data-theme="dark"] .message.success { background: rgba(16,185,129,0.1); color: #6ee7b7; border-color: rgba(16,185,129,0.3); }
[data-theme="dark"] .message.error { background: rgba(239,68,68,0.1); color: #fca5a5; border-color: rgba(239,68,68,0.3); }

/* ── Stat Cards ── */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}
.stat-card {
    background: var(--bg-card); padding: 20px; border-radius: var(--radius-md);
    border: 1px solid var(--border-default);
    position: relative; overflow: hidden;
}
.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--color-primary);
}
.stat-card h3 { color: var(--text-muted); font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 8px; }
.stat-card .value { font-size: 26px; font-weight: 700; color: var(--color-primary); }

/* Semantic stat card variants */
.stat-card--invested::before { background: var(--color-invested); }
.stat-card--invested .value { color: var(--color-invested); }
.stat-card--profit::before { background: var(--color-profit); }
.stat-card--profit .value { color: var(--color-profit); }
.stat-card--loss::before { background: var(--color-loss); }
.stat-card--loss .value { color: var(--color-loss); }
.stat-card--dividend::before { background: var(--color-dividend); }
.stat-card--dividend .value { color: var(--color-dividend); }
.stat-card--current::before { background: var(--color-current); }
.stat-card--current .value { color: var(--color-current); }
.stat-card--btc::before { background: var(--color-btc); }
.stat-card--btc .value { color: var(--color-btc); }

/* ── Tables (Modern Flat) ── */
.table-container {
    background: var(--bg-card); border-radius: var(--radius-md);
    border: 1px solid var(--border-default);
    overflow: auto; max-height: min(70vh, calc(100vh - 280px));
    -webkit-overflow-scrolling: touch;
}
table { width: 100%; min-width: 600px; border-collapse: separate; border-spacing: 0; }
th {
    background: var(--bg-card);
    color: var(--text-muted);
    font-size: 11px; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.05em;
    padding: 10px 16px; text-align: left;
    border-bottom: 2px solid var(--border-default);
    position: sticky; top: 0; z-index: 10;
    cursor: pointer; user-select: none; white-space: nowrap;
}
th:hover { background: var(--bg-card-hover); }
td {
    padding: 12px 16px; text-align: left;
    border-bottom: 1px solid var(--border-light);
    font-size: 14px; color: var(--text-primary);
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--bg-card-hover); }
th a { color: inherit; text-decoration: none; display: flex; align-items: center; justify-content: space-between; }
th .sort-icon { margin-left: 5px; opacity: 0.3; }
th.sorted .sort-icon { opacity: 1; }
th.sorted { color: var(--color-primary); }
.number { text-align: right; font-family: 'SF Mono', Monaco, monospace; }
.positive { color: var(--color-profit); }
.negative { color: var(--color-loss); }
.text-muted { color: var(--text-muted); }

/* ── Pagination ── */
.pagination {
    display: flex; justify-content: center; align-items: center; gap: 6px; margin-top: 20px; flex-wrap: wrap;
}
.pagination a, .pagination span {
    padding: 6px 12px; background: var(--bg-card); border: 1px solid var(--border-default);
    border-radius: var(--radius-sm); text-decoration: none; color: var(--text-primary); font-size: 13px;
}
.pagination a:hover { background: var(--color-primary-soft); color: var(--color-primary); border-color: var(--color-primary); }
.pagination .active {
    background: var(--color-primary);
    color: var(--text-on-primary); border-color: var(--color-primary); font-weight: 600;
}
.pagination .disabled { color: var(--text-muted); pointer-events: none; border-color: var(--border-light); }

/* Pager alias (taxes, tax-return) */
.pager { display: flex; align-items: center; gap: 6px; padding: 12px 0; font-size: 13px; flex-wrap: wrap; }
.pager a { color: var(--color-primary); text-decoration: none; padding: 4px 10px; border: 1px solid var(--border-default); border-radius: var(--radius-sm); }
.pager a:hover { background: var(--color-primary-soft); }
.pager span { color: var(--text-muted); padding: 0 4px; }
.pager .pager-cur { background: var(--color-primary); color: var(--text-on-primary); padding: 4px 10px; border-radius: var(--radius-sm); font-weight: 600; }
.pager .pager-info { margin-left: 8px; color: var(--text-muted); font-size: 12px; }

/* ── Loading ── */
.loading-spinner {
    display: inline-block; width: 20px; height: 20px;
    border: 3px solid var(--border-default); border-top: 3px solid var(--color-primary);
    border-radius: 50%; animation: spin 1s linear infinite;
}
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
.price-loading { color: var(--text-muted); font-style: italic; }

/* ── Charts ── */
.chart-container {
    background: var(--bg-card); padding: 20px; border-radius: var(--radius-md);
    border: 1px solid var(--border-default); margin-bottom: 20px;
}
.chart-wrapper { display: grid; grid-template-columns: 300px 1fr; gap: 30px; align-items: center; }
.chart-canvas { max-width: 300px; max-height: 300px; }
.chart-legend { }
.legend-item { display: flex; align-items: center; padding: 8px 0; border-bottom: 1px solid var(--border-light); }
.legend-color { width: 16px; height: 16px; border-radius: 3px; margin-right: 10px; }
.legend-label { flex: 1; color: var(--text-primary); }
.legend-value { font-weight: 600; font-family: 'SF Mono', Monaco, monospace; color: var(--text-primary); }
.legend-percent { color: var(--text-muted); margin-left: 10px; font-size: 14px; }

.chart-tabs {
    display: flex; gap: 0; margin-bottom: 20px;
    border-bottom: 2px solid var(--border-default);
    overflow-x: auto; -webkit-overflow-scrolling: touch;
    scrollbar-width: none; -ms-overflow-style: none;
}
.chart-tabs::-webkit-scrollbar { display: none; }
.chart-tab {
    padding: 12px 24px; background: none; border: none;
    cursor: pointer; font-size: 14px; font-weight: 500; color: var(--text-muted);
    border-bottom: 2px solid transparent; margin-bottom: -2px;
    transition: all 0.2s; flex-shrink: 0; white-space: nowrap;
}
.chart-tab:hover { color: var(--color-primary); }
.chart-tab.active { color: var(--color-primary); border-bottom-color: var(--color-primary); }
.chart-panel { display: none; }
.chart-panel.active { display: block; }

/* ── Empty State ── */
.empty-state {
    text-align: center; padding: 60px 20px;
    background: var(--bg-card); border-radius: var(--radius-md);
    border: 1px solid var(--border-default);
}
.empty-state svg { margin-bottom: 16px; opacity: 0.4; }
.empty-state h3 { color: var(--text-secondary); margin-bottom: 8px; font-size: 16px; }
.empty-state p { color: var(--text-muted); max-width: 360px; margin: 0 auto; font-size: 14px; }

.grid-2 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
}

/* ── Utility Classes ── */
.btn-edit {
    background: var(--color-primary); color: var(--text-on-primary); border: none;
    padding: 4px 8px; border-radius: var(--radius-sm); cursor: pointer; font-size: 12px; margin-right: 4px;
}
.btn-delete {
    background: var(--color-loss); color: var(--text-on-primary); border: none;
    padding: 4px 8px; border-radius: var(--radius-sm); cursor: pointer; font-size: 12px;
}
.badge-buy {
    padding: 2px 8px; border-radius: 3px; font-size: 12px;
    background: #ecfdf5; color: #065f46;
}
.badge-sell {
    padding: 2px 8px; border-radius: 3px; font-size: 12px;
    background: #fef2f2; color: #991b1b;
}
[data-theme="dark"] .badge-buy { background: rgba(16,185,129,0.15); color: #6ee7b7; }
[data-theme="dark"] .badge-sell { background: rgba(239,68,68,0.15); color: #fca5a5; }

/* ── Info Box (collapsible) ── */
.info-box {
    background: #fffbeb; border: 1px solid #fde68a; border-radius: var(--radius-md);
    margin-bottom: 20px; font-size: 13px; color: #92400e; line-height: 1.7;
}
[data-theme="dark"] .info-box {
    background: rgba(245,158,11,0.08); border-color: rgba(245,158,11,0.2); color: #fbbf24;
}
.info-box-summary {
    padding: 14px 18px; cursor: pointer; font-weight: 600;
    list-style: none; display: flex; align-items: center; gap: 8px;
}
.info-box-summary::-webkit-details-marker { display: none; }
.info-box-summary::before {
    content: '▶'; font-size: 10px; transition: transform 0.2s;
}
.info-box[open] .info-box-summary::before { transform: rotate(90deg); }
.info-box-content { padding: 0 18px 14px; }
.info-box strong { color: #78350f; }
[data-theme="dark"] .info-box strong { color: #fde68a; }

/* ── Responsive: Tablet (≤1023px) ── */
@media (max-width: 1023px) {
    header {
        position: sticky;
        top: 0;
        z-index: 700;
    }
    .hamburger-btn { display: flex; }
    .app-version { display: none; }

    .page-layout { padding: 16px; gap: 0; }
    .sidebar {
        position: fixed !important;
        left: -240px !important;
        top: 0 !important; bottom: 0 !important;
        width: 220px !important; height: 100vh !important;
        z-index: 900 !important;
        border-radius: 0 var(--radius-md) var(--radius-md) 0 !important;
        transition: left 0.25s ease !important;
        overflow-y: auto !important;
        border: none !important;
    }
    .sidebar.mobile-open {
        left: 0 !important;
        box-shadow: 4px 0 24px rgba(0,0,0,0.22) !important;
    }
    .main-content { width: 100% !important; }

    .stats { grid-template-columns: repeat(2, 1fr); }
    .overview-grid { grid-template-columns: repeat(2, 1fr); }
    .grid-2 { grid-template-columns: 1fr; }

    .chart-wrapper { grid-template-columns: 220px 1fr; gap: 20px; }
    .chart-canvas { max-width: 220px; max-height: 220px; }

    table {
        display: block; overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

/* ── Responsive: Mobile (≤767px) ── */
@media (max-width: 767px) {
    header .container { padding: 8px 14px; gap: 6px; }
    .portfolio-trigger { font-size: 13px; padding: 6px 10px; }
    .user-menu-trigger { font-size: 13px; padding: 6px 10px; }
    .user-menu { gap: 6px; }

    .page-layout { padding: 10px; }
    .sidebar { width: 200px !important; left: -220px !important; }

    .stats,
    .overview-grid { grid-template-columns: 1fr 1fr !important; }

    .chart-wrapper { grid-template-columns: 1fr; }
    .chart-canvas { max-width: 200px; max-height: 200px; margin: 0 auto; }

    .upload-form { flex-direction: column; }
    .upload-form .form-input,
    .upload-form .form-input--md,
    .upload-form .form-input--flex,
    .upload-form select,
    .upload-form input[type="date"],
    .upload-form input[type="file"] { width: 100%; min-width: 0; }
    .upload-form button { width: 100%; }
}

/* ── Responsive utility classes ── */
@media (max-width: 1023px) {
    .hide-tablet { display: none !important; }
}
@media (max-width: 767px) {
    .hide-mobile { display: none !important; }
}