/* === Reset & Base === */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --primary: #192a56;
    --primary-hover: #0f1d3d;
    --bg: #f8fafc;
    --surface: #ffffff;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --green: #00a651;
    --yellow: #ca8a04;
    --red: #dc2626;
    --radius: 6px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

html {
    font-size: 15px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* === Header === */
.site-header {
    background: var(--primary);
    color: #fff;
    padding: 0.6rem 0;
    box-shadow: var(--shadow);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    color: #fff;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-img {
    height: 32px;
    width: auto;
    display: block;
    /* Invert to white since header is dark */
    filter: brightness(0) invert(1);
}

.logo-subtitle {
    font-size: 0.85rem;
    font-weight: 400;
    opacity: 0.85;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.user-greeting {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* === Footer === */
.site-footer {
    padding: 1.5rem 0;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--border);
    margin-top: 2rem;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.footer-credit {
    font-size: 0.78rem;
    opacity: 0.6;
}

.footer-credit a {
    color: inherit;
    text-decoration: none;
}

.footer-credit a:hover {
    text-decoration: underline;
    opacity: 1;
}

/* === Buttons === */
.btn {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-size: 0.95rem;
    line-height: 1.5;
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.15s, border-color 0.15s, opacity 0.15s;
    vertical-align: middle;
    box-sizing: border-box;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--primary-hover);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.5);
    padding: 0.35rem 0.9rem;
    font-size: 0.85rem;
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
}

.btn-sm {
    padding: 0.3rem 0.75rem;
    font-size: 0.85rem;
}

.btn-block {
    display: block;
    width: 100%;
}

/* === Login === */
.login-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
    padding: 2rem 0;
}

.login-card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 2rem;
    width: 100%;
    max-width: 400px;
}

.login-logo {
    text-align: center;
    margin-bottom: 0.75rem;
}

.login-logo img {
    height: 52px;
    width: auto;
}

.login-subtitle {
    text-align: center;
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-muted);
    margin-bottom: 1.75rem;
    letter-spacing: 0.03em;
}


.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.35rem;
    color: var(--text);
}

.form-group input {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    transition: border-color 0.15s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(25, 42, 86, 0.15);
}

/* === Alerts === */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.alert-error {
    background: #fef2f2;
    color: var(--red);
    border: 1px solid #fecaca;
}

/* === Inventory === */
.inventory-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 1.5rem 0 1rem;
    gap: 1rem;
    flex-wrap: wrap;
}

.inventory-header h1 {
    font-size: 1.5rem;
}

.search-bar {
    position: relative;
}

.search-bar input {
    padding: 0.5rem 2rem 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    width: 280px;
    max-width: 100%;
}

.search-bar input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(25, 42, 86, 0.15);
}

.search-clear {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 1.2rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0 0.15rem;
    line-height: 1;
    display: none;
}

.search-clear:hover {
    color: var(--text);
}

.search-clear.visible {
    display: block;
}

.import-info {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 0.35rem;
}

.debug-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.78rem;
    color: var(--text-muted);
    background: #f8f9fb;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.3rem 0.75rem;
    margin-bottom: 1rem;
    width: fit-content;
}

.debug-sep {
    color: var(--border);
}

.debug-warn {
    color: #92400e;
}

/* === Table === */
.table-wrapper {
    width: 100%;
    overflow-x: auto;
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.inventory-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.inventory-table th {
    background: #f1f5f9;
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-muted);
    border-bottom: 2px solid var(--border);
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
    position: sticky;
    top: 0;
}

.inventory-table th:hover {
    color: var(--text);
}

/* Sort direction icons – inline with label text */
.inventory-table th[data-sort] .col-label::after {
    content: ' \2195'; /* ↕ */
    font-size: 0.95em;
    opacity: 0.4;
    margin-left: 0.35em;
}

.inventory-table th.sort-asc .col-label::after {
    content: ' \2191'; /* ↑ */
    opacity: 1;
    color: var(--primary);
}

.inventory-table th.sort-desc .col-label::after {
    content: ' \2193'; /* ↓ */
    opacity: 1;
    color: var(--primary);
}

.inventory-table th .col-sub,
.inventory-table td .col-sub {
    display: block;
    font-size: 0.75rem;
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
    opacity: 0.7;
}

.subtitle {
    font-size: 0.65em;
    font-weight: 400;
    color: var(--text-muted);
}

.inventory-table td {
    padding: 0.65rem 1rem;
    border-bottom: 1px solid var(--border);
}

.inventory-table tbody tr:hover {
    background: #f8fafc;
}

.inventory-table tbody tr:last-child td {
    border-bottom: none;
}

.empty-state {
    text-align: center;
    padding: 2rem 1rem !important;
    color: var(--text-muted);
}

.cell-stock {
    font-variant-numeric: tabular-nums;
}

/* === Stock Indicators === */
.stock-indicator {
    display: inline-block;
    font-size: 1.4rem;
    line-height: 1;
}

.stock-green {
    color: var(--green);
}

.stock-yellow {
    color: var(--yellow);
}

.stock-red {
    color: var(--red);
}

/* === Stock Row Colors === */
.row-stock-green {
    background-color: rgba(34, 197, 94, 0.08);
}

.row-stock-yellow {
    background-color: rgba(234, 179, 8, 0.1);
}

.row-stock-red {
    background-color: rgba(239, 68, 68, 0.08);
}

.row-stock-green:hover {
    background-color: rgba(34, 197, 94, 0.15);
}

.row-stock-yellow:hover {
    background-color: rgba(234, 179, 8, 0.18);
}

.row-stock-red:hover {
    background-color: rgba(239, 68, 68, 0.15);
}

/* === Stock Legend === */
.stock-legend {
    display: flex;
    gap: 1.25rem;
    margin-bottom: 0.75rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.legend-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.legend-dot.legend-green {
    background: var(--green);
}

.legend-dot.legend-yellow {
    background: var(--yellow);
}

.legend-dot.legend-red {
    background: var(--red);
}

/* === Pagination === */
.load-sentinel {
    height: 1px;
}

.load-spinner {
    display: flex;
    justify-content: center;
    gap: 0.4rem;
    padding: 1.5rem 0;
}

.spinner-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
    opacity: 0.3;
    animation: spinner-pulse 1.2s infinite ease-in-out;
}

.spinner-dot:nth-child(2) { animation-delay: 0.2s; }
.spinner-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes spinner-pulse {
    0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
    40%           { opacity: 1;   transform: scale(1.2); }
}

/* === Admin === */
.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 1.5rem 0 1rem;
    gap: 1rem;
}

.admin-header h1 {
    font-size: 1.5rem;
}

/* === Settings page === */
.settings-page {
    padding: 1.5rem 0 3rem;
}

.settings-page > h1 {
    font-size: 1.6rem;
    margin-bottom: 2rem;
}

.settings-section {
    margin-bottom: 2.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--border);
}

.settings-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.settings-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.settings-section-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.settings-form-card {
    max-width: 420px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.data-table th {
    background: #f1f5f9;
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-muted);
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
}

.data-table td {
    padding: 0.65rem 1rem;
    border-bottom: 1px solid var(--border);
}

.data-table tbody tr:hover {
    background: #f8fafc;
}

.data-table tbody tr:last-child td {
    border-bottom: none;
}

.cell-actions {
    display: flex;
    gap: 0.35rem;
    flex-wrap: wrap;
}

.inline-form {
    display: inline;
}

.badge {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.badge-superadmin {
    background: #ede9fe;
    color: #6d28d9;
}

.badge-admin {
    background: #dbeafe;
    color: var(--primary);
}

.badge-active {
    background: #dcfce7;
    color: var(--green);
}

.badge-inactive {
    background: #fee2e2;
    color: var(--red);
}

.badge-available {
    background: rgba(0, 166, 81, 0.12);
    color: var(--green);
}

.badge-unavailable {
    background: #fee2e2;
    color: var(--red);
}

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

.btn-outline-dark {
    background: transparent;
    color: var(--text);
    border-color: var(--border);
}

.btn-outline-dark:hover {
    background: #f1f5f9;
}

.btn-danger {
    background: var(--red);
    color: #fff;
    border-color: var(--red);
}

.btn-danger:hover {
    background: #b91c1c;
    border-color: #b91c1c;
}

.alert-success {
    background: #f0fdf4;
    color: var(--green);
    border: 1px solid #bbf7d0;
}

/* === Form Page (Admin) === */
.form-page {
    display: flex;
    justify-content: center;
    padding: 2rem 0;
}

.form-card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 2rem;
    width: 100%;
    max-width: 500px;
}

.form-card h1 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-hint {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.form-check label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.form-check input[type="checkbox"] {
    width: 1.1rem;
    height: 1.1rem;
}

.form-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.form-group input[readonly] {
    background: #f1f5f9;
    color: var(--text-muted);
}

/* === Responsive === */
@media (max-width: 768px) {
    .inventory-header {
        flex-direction: column;
        align-items: stretch;
    }

    .search-bar input {
        width: 100%;
    }

    /* ── Mobile card layout ── */
    .inventory-table thead {
        display: none;
    }

    .inventory-table,
    .inventory-table tbody {
        display: block;
    }

    /* Each row becomes a compact 2-col card */
    .inventory-table tr {
        display: grid;
        grid-template-columns: 1fr auto;
        grid-template-rows: auto auto;
        gap: 0.1rem 0.75rem;
        padding: 0.6rem 1rem;
        border-bottom: 2px solid var(--border);
    }

    .inventory-table td {
        padding: 0;
        border: none;
        word-break: break-word;
    }

    /* Article number – top row, full width, small & muted */
    .inventory-table td:nth-child(1) {
        grid-column: 1 / -1;
        grid-row: 1;
        font-size: 0.75rem;
        color: var(--text-muted);
        font-weight: 500;
        letter-spacing: 0.02em;
    }

    .inventory-table td:nth-child(1)::before {
        content: '# ';
        font-weight: 700;
        color: var(--primary);
        opacity: 0.7;
    }

    /* Description – bottom left, main text */
    .inventory-table td:nth-child(2) {
        grid-column: 1;
        grid-row: 2;
        font-size: 0.95rem;
        font-weight: 500;
        align-self: center;
    }

    /* Stock + unit – bottom right, bold number with unit appended */
    .inventory-table td:nth-child(3) {
        grid-column: 2;
        grid-row: 2;
        text-align: right;
        font-weight: 700;
        font-size: 1rem;
        align-self: center;
        white-space: nowrap;
    }

    .inventory-table td:nth-child(3)::after {
        content: " " attr(data-unit);
        font-weight: 400;
        font-size: 0.8em;
        opacity: 0.65;
    }

    /* Unit column – hidden, merged into stock display above */
    .inventory-table td:nth-child(4) {
        display: none;
    }

    .header-inner {
        flex-direction: column;
        gap: 0.5rem;
    }

    .user-greeting {
        display: none;
    }
}