/* ─── Buttons ─────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: opacity 0.15s, transform 0.1s;
    white-space: nowrap;
    text-decoration: none;
}

.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover { background: var(--accent-light); text-decoration: none; color: #fff; }

.btn-secondary {
    background: var(--bg-hover);
    color: var(--text-primary);
    border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--border); text-decoration: none; color: var(--text-primary); }

.btn-danger {
    background: var(--red-dim);
    color: var(--red);
    border: 1px solid rgba(239,68,68,0.3);
}
.btn-danger:hover { background: var(--red); color: #fff; text-decoration: none; }

.btn-success {
    background: var(--green-dim);
    color: var(--green);
    border: 1px solid rgba(34,197,94,0.3);
}
.btn-success:hover { background: var(--green); color: #fff; text-decoration: none; }

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}

.btn-icon {
    padding: 7px;
    background: var(--bg-hover);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
}
.btn-icon:hover { color: var(--text-primary); }

/* ─── Forms ───────────────────────────────────────────────── */

.form-group {
    margin-bottom: 18px;
}

.form-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: border-color 0.15s;
}

.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-control::placeholder {
    color: var(--text-muted);
}

select.form-control {
    cursor: pointer;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.form-error {
    font-size: 12px;
    color: var(--red);
    margin-top: 6px;
}

/* ─── Cards ───────────────────────────────────────────────── */

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* ─── Stat Cards ──────────────────────────────────────────── */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.stat-card .stat-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.stat-card .stat-value {
    font-size: 26px;
    font-weight: 700;
    line-height: 1;
}

.stat-card .stat-sub {
    font-size: 12px;
    color: var(--text-secondary);
}

.stat-card.green .stat-value { color: var(--green); }
.stat-card.red .stat-value   { color: var(--red); }
.stat-card.accent .stat-value { color: var(--accent-light); }
.stat-card.yellow .stat-value { color: var(--yellow); }

/* ─── Table ───────────────────────────────────────────────── */

.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

thead th {
    background: var(--bg-card);
    padding: 12px 16px;
    text-align: left;
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

tbody tr {
    border-bottom: 1px solid var(--border);
    transition: background 0.1s;
}

tbody tr:last-child {
    border-bottom: none;
}

tbody tr:hover {
    background: var(--bg-hover);
}

tbody td {
    padding: 13px 16px;
    color: var(--text-primary);
    vertical-align: middle;
}

/* ─── Badges ──────────────────────────────────────────────── */

.badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.badge-green  { background: var(--green-dim);  color: var(--green); }
.badge-red    { background: var(--red-dim);    color: var(--red); }
.badge-yellow { background: var(--yellow-dim); color: var(--yellow); }
.badge-blue   { background: var(--blue-dim);   color: var(--blue); }
.badge-accent { background: var(--accent-dim); color: var(--accent-light); }

/* ─── Modal ───────────────────────────────────────────────── */

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.65);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    padding: 24px;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: all;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 540px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow);
    transform: translateY(16px);
    transition: transform 0.2s;
}

.modal-overlay.open .modal {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.modal-title {
    font-size: 16px;
    font-weight: 600;
}

.modal-close {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--bg-hover);
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: background 0.15s;
}

.modal-close:hover {
    background: var(--border);
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 16px 24px;
    border-top: 1px solid var(--border);
}

/* ─── Charts ──────────────────────────────────────────────── */

.charts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 28px;
}

.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}

.chart-card .chart-container {
    position: relative;
    height: 220px;
}

/* ─── Page header ─────────────────────────────────────────── */

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.page-header h1 {
    font-size: 22px;
}

.page-header p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* ─── Filter bar ──────────────────────────────────────────── */

.filter-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.filter-bar .form-control {
    width: auto;
    min-width: 140px;
}

.search-input {
    flex: 1;
    min-width: 200px;
    max-width: 320px;
}

/* ─── Filter date group ───────────────────────────────────── */

.filter-date-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.filter-label {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
}

/* ─── Profit display ──────────────────────────────────────── */

.profit-positive { color: var(--green); font-weight: 600; }
.profit-negative { color: var(--red);   font-weight: 600; }

/* ─── Alerts ──────────────────────────────────────────────── */

.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin-bottom: 16px;
}

.alert-error {
    background: var(--red-dim);
    border: 1px solid rgba(239,68,68,0.3);
    color: var(--red);
}

.alert-success {
    background: var(--green-dim);
    border: 1px solid rgba(34,197,94,0.3);
    color: var(--green);
}

/* ─── Empty state ─────────────────────────────────────────── */

.empty-state {
    text-align: center;
    padding: 60px 24px;
    color: var(--text-muted);
}

.empty-state .empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.empty-state p {
    font-size: 15px;
    margin-bottom: 20px;
}

/* ─── Loading spinner ─────────────────────────────────────── */

.spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-center {
    display: flex;
    justify-content: center;
    padding: 60px;
}

/* ─── Hamburger ───────────────────────────────────────────── */

.hamburger {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 22px;
    cursor: pointer;
    padding: 4px 8px;
    margin-right: 4px;
    border-radius: var(--radius-sm);
    line-height: 1;
}

.hamburger:hover {
    background: var(--bg-hover);
}

/* ─── Sidebar overlay ─────────────────────────────────────── */

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 99;
}

.sidebar-overlay.active {
    display: block;
}

/* ─── Responsive ──────────────────────────────────────────── */

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }

    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.25s ease;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .topbar {
        padding: 0 16px;
    }

    .page-content {
        padding: 16px;
    }

    .charts-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

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

    .filter-bar {
        display: grid;
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }

    .filter-bar .search-input {
        grid-column: 1 / -1;
        max-width: 100%;
        min-width: 0;
        flex: none;
    }

    .filter-bar .form-control {
        min-width: 0;
        width: 100%;
    }

    .filter-clear {
        justify-self: start;
        width: auto;
    }

    .modal-overlay {
        padding: 12px;
        align-items: flex-end;
    }

    .modal {
        max-height: 95vh;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}

@media (max-width: 420px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .topbar-title {
        font-size: 15px;
    }
}