@import url('https://fonts.loli.net/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
    --primary: #111111;
    --primary-light: #333333;
    --accent: #111111;
    --accent-light: #333333;
    --accent-bg: rgba(0, 0, 0, 0.06);
    --accent-border: rgba(0, 0, 0, 0.15);

    --ink: #0f172a;
    --ink-2: #1e293b;
    --muted: #64748b;
    --muted-2: #94a3b8;
    --paper: #ffffff;
    --paper-2: #f8fafc;
    --paper-3: #f1f5f9;
    --border: #e2e8f0;
    --border-light: #f1f5f9;

    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.06), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.06), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.06), 0 8px 10px -6px rgba(0, 0, 0, 0.04);

    --radius-xs: 6px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    --green: #16a34a;
    --green-bg: #f0fdf4;
    --green-border: #bbf7d0;
    --red: #dc2626;
    --red-bg: #fef2f2;
    --red-border: #fecaca;
    --blue: #2563eb;
    --blue-bg: #eff6ff;
    --blue-border: #bfdbfe;
    --amber: #d97706;
    --amber-bg: #fffbeb;
    --amber-border: #fde68a;
    --gray-bg: #f8fafc;
    --gray-border: #e2e8f0;

    --ease: cubic-bezier(0.16, 1, 0.3, 1);
    --transition: 200ms var(--ease);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
}

body.admin-body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--ink-2);
    background: var(--paper-2);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ── Header ── */
.header {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 0 24px;
    height: 60px;
    background: var(--paper);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-xs);
}

.header h1 {
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--ink);
    display: flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
}

.header h1 i {
    color: var(--accent);
    font-size: 1.1rem;
}

.header-links {
    display: flex;
    align-items: center;
    gap: 2px;
}

.header-user {
    color: var(--muted);
    font-weight: 600;
    font-size: 0.82rem;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    margin-right: 8px;
}

.header a {
    color: var(--muted);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.82rem;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.header a:hover {
    color: var(--ink);
    background: var(--paper-3);
}

.header a[aria-current="page"] {
    color: var(--accent);
    background: var(--accent-bg);
    font-weight: 700;
}

/* ── Container ── */
.container {
    max-width: 100%;
    margin: 0 auto;
    padding: 24px 32px 40px;
}

.container--narrow {
    max-width: 860px;
}

/* ── Toolbar ── */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    margin: 0 0 20px;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 8px;
}

.search-box input,
.form-group input,
.form-group select,
.form-group textarea,
select,
input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--paper);
    font-size: 0.875rem;
    font-family: inherit;
    color: var(--ink-2);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.search-box input {
    min-width: min(360px, 72vw);
}

.search-box input:focus,
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus,
select:focus,
input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-bg);
}

.form-group input::placeholder,
.form-group textarea::placeholder,
input::placeholder {
    color: var(--muted-2);
}

.toolbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

/* ── Buttons ── */
.btn {
    padding: 9px 16px;
    border: 1px solid var(--border);
    background: var(--ink);
    color: var(--paper);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    user-select: none;
    white-space: nowrap;
}

.btn:hover {
    background: var(--primary);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn:active {
    transform: translateY(0);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-outline {
    background: var(--paper);
    color: var(--ink-2);
    border-color: var(--border);
}

.btn-outline:hover {
    background: var(--paper-3);
    border-color: var(--muted-2);
    transform: translateY(-1px);
}

.btn-ghost {
    background: transparent;
    color: var(--muted);
    border-color: transparent;
    padding: 9px 12px;
}

.btn-ghost:hover {
    background: var(--paper-3);
    color: var(--ink-2);
}

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

.btn-accent:hover {
    background: var(--accent-light);
    border-color: var(--accent-light);
}

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

.btn-danger:hover {
    opacity: 0.9;
}

/* ── Cards & Sections ── */
.card,
.section {
    background: var(--paper);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card {
    padding: 24px;
    margin-bottom: 16px;
}

.card-title {
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--ink);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.card-title i {
    color: var(--accent);
    font-size: 1rem;
}

.section-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    background: var(--paper-2);
}

.section-header h2 {
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--ink);
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-header h2 i {
    color: var(--accent);
}

.section-body {
    padding: 20px;
}

/* ── Forms ── */
.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

@media (min-width: 820px) {
    .form-row.form-row--2 {
        grid-template-columns: 2fr 1fr;
    }
    .form-row.form-row--3 {
        grid-template-columns: 1fr 1fr 1fr;
    }
}

.form-group {
    margin-bottom: 0;
}

.form-group + .form-group {
    margin-top: 16px;
}

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 6px;
}

.form-hint {
    font-size: 0.8rem;
    color: var(--muted-2);
    margin-top: 6px;
    line-height: 1.5;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.checkbox-group input[type="checkbox"],
.checkbox-group input[type="radio"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
}

/* ── Tables ── */
.table-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin: 0 0 12px;
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 500;
}

.table-container {
    background: var(--paper);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.table-scroll {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
    font-size: 0.875rem;
}

th {
    background: var(--paper-2);
    color: var(--muted);
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    position: sticky;
    top: 0;
    z-index: 1;
}

tbody tr {
    transition: background var(--transition);
}

tbody tr:hover td {
    background: var(--paper-2);
}

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

.th-sort {
    background: transparent;
    border: none;
    padding: 0;
    margin: 0;
    cursor: pointer;
    font: inherit;
    color: inherit;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color var(--transition);
}

.th-sort:hover {
    color: var(--ink-2);
}

.th-sort i {
    width: 14px;
    text-align: center;
    opacity: 0.4;
    font-size: 0.7rem;
}

.th-sort.is-active {
    color: var(--accent);
}

.th-sort.is-active i {
    opacity: 1;
}

/* ── Badges ── */
.badge {
    padding: 3px 10px;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    border: 1px solid var(--gray-border);
    background: var(--gray-bg);
    color: var(--muted);
}

.badge-green {
    background: var(--green-bg);
    color: var(--green);
    border-color: var(--green-border);
}

.badge-red {
    background: var(--red-bg);
    color: var(--red);
    border-color: var(--red-border);
}

.badge-blue {
    background: var(--blue-bg);
    color: var(--blue);
    border-color: var(--blue-border);
}

.badge-amber {
    background: var(--amber-bg);
    color: var(--amber);
    border-color: var(--amber-border);
}

.badge-gray {
    background: var(--gray-bg);
    color: var(--muted);
    border-color: var(--gray-border);
}

/* ── Actions ── */
.actions {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.actions button {
    padding: 6px 8px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--paper);
    cursor: pointer;
    transition: all var(--transition);
    color: var(--muted);
    font-size: 0.82rem;
}

.actions button:hover {
    background: var(--paper-3);
    color: var(--ink-2);
    border-color: var(--muted-2);
}

/* ── Pagination ── */
.pagination {
    display: flex;
    justify-content: center;
    gap: 4px;
    margin-top: 20px;
    flex-wrap: wrap;
    align-items: center;
}

.pagination button {
    padding: 7px 12px;
    border: 1px solid var(--border);
    background: var(--paper);
    cursor: pointer;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.82rem;
    color: var(--muted);
    transition: all var(--transition);
}

.pagination button:hover {
    background: var(--paper-3);
    color: var(--ink-2);
    border-color: var(--muted-2);
}

.pagination button.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.pagination button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.pagination .pagination__sep {
    color: var(--muted-2);
    font-weight: 600;
    padding: 0 4px;
    font-size: 0.82rem;
}

/* ── Loading & Empty ── */
.loading, .empty {
    text-align: center;
    padding: 40px 16px;
    color: var(--muted);
    font-size: 0.875rem;
}

/* ── Modals ── */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(4px);
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 24px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--paper);
    padding: 28px;
    max-width: 520px;
    width: 100%;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-xl);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    gap: 12px;
}

.modal-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--ink);
}

.modal-close {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--muted);
    border-radius: var(--radius-sm);
    width: 36px;
    height: 36px;
    cursor: pointer;
    transition: all var(--transition);
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--paper-3);
    color: var(--ink);
}

/* ── Alerts ── */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    border: 1px solid;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    font-size: 0.875rem;
    font-weight: 500;
}

.alert-success {
    background: var(--green-bg);
    color: #15803d;
    border-color: var(--green-border);
}

.alert-error {
    background: var(--red-bg);
    color: #b91c1c;
    border-color: var(--red-border);
}

.alert-info {
    background: var(--blue-bg);
    color: #1d4ed8;
    border-color: var(--blue-border);
}

.alert-warning {
    background: var(--amber-bg);
    color: #92400e;
    border-color: var(--amber-border);
}

/* ── Toast Notifications ── */
.toast-container {
    position: fixed;
    top: 72px;
    right: 24px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.toast {
    pointer-events: auto;
    padding: 12px 20px;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow-lg);
    border: 1px solid;
    animation: toastIn 0.3s var(--ease) forwards;
    max-width: 420px;
}

.toast.toast-out {
    animation: toastOut 0.25s var(--ease) forwards;
}

.toast-success {
    background: var(--green-bg);
    color: #15803d;
    border-color: var(--green-border);
}

.toast-error {
    background: var(--red-bg);
    color: #b91c1c;
    border-color: var(--red-border);
}

.toast-info {
    background: var(--blue-bg);
    color: #1d4ed8;
    border-color: var(--blue-border);
}

@keyframes toastIn {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes toastOut {
    from { opacity: 1; transform: translateX(0); }
    to { opacity: 0; transform: translateX(20px); }
}

/* ── Password Toggle ── */
.password-toggle {
    position: relative;
}

.password-toggle input {
    padding-right: 44px;
}

.password-toggle button {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    width: 34px;
    height: 34px;
    cursor: pointer;
    color: var(--muted);
    transition: all var(--transition);
}

.password-toggle button:hover {
    background: var(--paper-3);
    color: var(--ink-2);
}

/* ── Tabs ── */
.tabs {
    display: flex;
    gap: 4px;
    margin: 0 0 20px;
    flex-wrap: wrap;
    background: var(--paper-3);
    padding: 4px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
}

.tab {
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius-sm);
    background: transparent;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--muted);
    transition: all var(--transition);
}

.tab:hover {
    color: var(--ink-2);
    background: var(--paper);
}

.tab.active {
    background: var(--paper);
    color: var(--ink);
    box-shadow: var(--shadow-xs);
}

.panel {
    display: none;
}

.panel.active {
    display: block;
}

/* ── Code Display ── */
.code-display {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    background: var(--paper-3);
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    letter-spacing: 0.02em;
    display: inline-flex;
    color: var(--ink-2);
}

.codes-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}

.code-item {
    background: var(--paper-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 8px 12px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.85rem;
}

.code-item button {
    background: var(--paper);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    width: 30px;
    height: 30px;
    color: var(--muted);
    transition: all var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.code-item button:hover {
    background: var(--paper-3);
    color: var(--ink-2);
}

/* ── Misc ── */
.btn-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 16px;
}

.test-result {
    margin-top: 12px;
    display: none;
}

.credits-cell {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-weight: 700;
    color: var(--ink);
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .container {
        padding: 16px;
    }

    .header {
        padding: 0 16px;
        gap: 8px;
    }

    .header-links {
        gap: 0;
    }

    .search-box input {
        min-width: 0;
    }

    .modal-content {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .header {
        height: auto;
        padding: 12px 16px;
        flex-direction: column;
        align-items: flex-start;
    }

    .header-links {
        flex-wrap: wrap;
    }
}