:root {
    --brand-primary: #c3073f;
    --brand-accent: #fd6c5d;
    --brand-dark: #9a0530;
    --ink-900: #0f172a;
    --ink-800: #1e293b;
    --ink-700: #334155;
    --ink-500: #64748b;
    --ink-400: #94a3b8;
    --line: #e2e8f0;
    --line-soft: #f1f5f9;
    --surface: #ffffff;
    --bg: #f8fafc;
    --bg-elevated: #ffffff;
    --success: #15803d;
    --success-bg: #ecfdf3;
    --warning: #b45309;
    --warning-bg: #fff7ed;
    --danger: #b42318;
    --danger-bg: #fef2f2;
    --info: #0369a1;
    --info-bg: #f0f9ff;
    --test: #7c3aed;
    --test-bg: #f5f3ff;
    --live: #15803d;
    --live-bg: #ecfdf3;
    --focus: rgba(195, 7, 63, 0.22);
    --radius-xl: 18px;
    --radius-lg: 14px;
    --radius-md: 10px;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-card: 0 4px 24px rgba(15, 23, 42, 0.06);
    --shadow-float: 0 12px 40px rgba(15, 23, 42, 0.08);
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --sidebar-width: 260px;
    --transition: 0.18s ease;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font-sans, 'Manrope', 'Segoe UI', system-ui, sans-serif);
    color: var(--ink-900);
    background:
        radial-gradient(900px 380px at 0% -5%, rgba(195, 7, 63, 0.07), transparent 55%),
        radial-gradient(800px 320px at 100% -5%, rgba(253, 108, 93, 0.08), transparent 55%),
        var(--bg);
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.layout {
    width: min(1320px, calc(100% - 32px));
    margin: 0 auto;
    padding: var(--space-5) 0 var(--space-8);
    display: grid;
    grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
    gap: var(--space-5);
    align-items: start;
}

.sidebar {
    position: sticky;
    top: var(--space-5);
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    padding: var(--space-5);
    box-shadow: var(--shadow-card);
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--ink-900);
    font-weight: 800;
    font-size: 0.98rem;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-5);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--line-soft);
}

.brand-logo {
    width: 36px;
    height: 36px;
    object-fit: contain;
    border-radius: 10px;
}

.brand-mark {
    width: 36px;
    height: 36px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
    box-shadow: 0 8px 20px rgba(195, 7, 63, 0.28);
    flex-shrink: 0;
}

.brand-text { line-height: 1.25; }
.brand-sub { display: block; font-size: 0.72rem; font-weight: 600; color: var(--ink-500); letter-spacing: 0; margin-top: 2px; }

.nav-title {
    margin: 0 0 var(--space-2);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--ink-400);
    font-weight: 800;
}

.nav { display: grid; gap: 4px; margin-bottom: var(--space-5); }

.nav-link {
    text-decoration: none;
    color: var(--ink-700);
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    padding: 10px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    transition: background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
}

.nav-link:hover {
    background: var(--line-soft);
    color: var(--ink-900);
}

.nav-link.active {
    color: #fff;
    background: linear-gradient(120deg, var(--brand-primary), var(--brand-accent));
    box-shadow: 0 8px 18px rgba(195, 7, 63, 0.22);
}

.nav-icon {
    width: 18px;
    height: 18px;
    opacity: 0.85;
    flex-shrink: 0;
}

.nav-link.active .nav-icon { opacity: 1; }

.sidebar-footer {
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--line-soft);
}

.user-chip {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: var(--space-3);
    padding: 10px;
    border-radius: var(--radius-md);
    background: var(--line-soft);
}

.user-avatar {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: linear-gradient(135deg, #e2e8f0, #cbd5e1);
    display: grid;
    place-items: center;
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--ink-700);
}

.user-meta { min-width: 0; }
.user-name { font-size: 0.84rem; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-email { font-size: 0.72rem; color: var(--ink-500); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.logout {
    width: 100%;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--ink-700);
    border-radius: var(--radius-md);
    padding: 10px 12px;
    font: inherit;
    font-size: 0.88rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: background var(--transition), color var(--transition);
}

.logout:hover { background: var(--line-soft); color: var(--ink-900); }

.content { min-width: 0; }

.page-head {
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    background: rgba(255, 255, 255, 0.94);
    padding: var(--space-5) var(--space-6);
    margin-bottom: var(--space-4);
    box-shadow: var(--shadow-card);
    display: flex;
    gap: var(--space-4);
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
}

.headline {
    margin: 0;
    font-size: clamp(1.35rem, 2.4vw, 1.95rem);
    letter-spacing: -0.03em;
    font-weight: 800;
    line-height: 1.15;
}

.subline {
    margin: 8px 0 0;
    color: var(--ink-500);
    font-size: 0.95rem;
    max-width: 720px;
    line-height: 1.65;
}

.head-actions { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }

.alerts { margin-bottom: var(--space-4); display: grid; gap: 10px; }

.alert {
    border-radius: var(--radius-lg);
    border: 1px solid transparent;
    padding: 12px 14px;
    font-size: 0.9rem;
    background: #fff;
}

.alert-success { border-color: #bbf7d0; background: var(--success-bg); color: var(--success); }
.alert-error { border-color: #fecaca; background: var(--danger-bg); color: var(--danger); }
.alert-warning { border-color: #fed7aa; background: var(--warning-bg); color: var(--warning); }
.alert-info { border-color: #bae6fd; background: var(--info-bg); color: var(--info); }

.card {
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    background: var(--surface);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
}

.card-tight { padding: var(--space-4); }
.card-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; flex-wrap: wrap; margin-bottom: var(--space-4); }
.card-title { margin: 0; font-size: 1.02rem; font-weight: 800; letter-spacing: -0.02em; }
.card-subtitle { margin: 6px 0 0; color: var(--ink-500); font-size: 0.88rem; }

.grid { display: grid; gap: var(--space-4); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-sidebar { grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr); }

.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--space-3); }

.kpi-card {
    border: 1px solid var(--line);
    border-radius: var(--radius-lg);
    padding: 16px;
    background: #fff;
    transition: box-shadow var(--transition), transform var(--transition);
}

.kpi-card:hover { box-shadow: var(--shadow-card); transform: translateY(-1px); }

.kpi-label {
    margin: 0;
    font-size: 0.72rem;
    color: var(--ink-500);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 800;
}

.kpi-value {
    margin: 10px 0 0;
    font-size: 1.65rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1;
}

.kpi-hint { margin: 8px 0 0; color: var(--ink-500); font-size: 0.8rem; }

.pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.pill-success { background: var(--success-bg); color: var(--success); }
.pill-danger { background: var(--danger-bg); color: var(--danger); }
.pill-warning { background: var(--warning-bg); color: var(--warning); }
.pill-neutral { background: var(--line-soft); color: var(--ink-700); }
.pill-test { background: var(--test-bg); color: var(--test); }
.pill-live { background: var(--live-bg); color: var(--live); }

.btn {
    border: 0;
    border-radius: var(--radius-md);
    padding: 10px 16px;
    font: inherit;
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    color: #fff;
    background: linear-gradient(120deg, var(--brand-primary), var(--brand-accent));
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: filter var(--transition), transform var(--transition), box-shadow var(--transition);
    box-shadow: 0 4px 14px rgba(195, 7, 63, 0.2);
}

.btn:hover { filter: brightness(1.03); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-outline {
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    padding: 9px 14px;
    font: inherit;
    font-weight: 700;
    font-size: 0.88rem;
    cursor: pointer;
    color: var(--ink-700);
    background: #fff;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.btn-outline:hover { background: var(--line-soft); border-color: #cbd5e1; color: var(--ink-900); }
.btn-outline.active { border-color: var(--brand-primary); color: var(--brand-primary); background: #fff7f8; }

.btn-danger { background: linear-gradient(120deg, #b42318, #dc2626); box-shadow: 0 4px 14px rgba(180, 35, 24, 0.2); }

.btn-sm { padding: 7px 11px; font-size: 0.82rem; }

.btn:focus-visible,
.btn-outline:focus-visible,
.nav-link:focus-visible,
.logout:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible {
    outline: 3px solid var(--focus);
    outline-offset: 2px;
}

.input,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="url"],
input[type="file"],
select,
textarea {
    width: 100%;
    border: 1px solid #cbd5e1;
    border-radius: var(--radius-md);
    padding: 10px 12px;
    font: inherit;
    color: var(--ink-900);
    background: #fff;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.input:focus,
input:focus,
select:focus,
textarea:focus {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px var(--focus);
    outline: none;
}

.label { display: grid; gap: 6px; }
.label-text { font-size: 0.82rem; font-weight: 700; color: var(--ink-700); }
.label-hint { font-size: 0.78rem; color: var(--ink-500); }

.form-grid { display: grid; gap: 14px; }

.checkbox-row {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px;
    border-radius: var(--radius-md);
    border: 1px solid #fed7aa;
    background: var(--warning-bg);
}

.checkbox-row input { width: auto; margin-top: 3px; }
.checkbox-row label { font-size: 0.86rem; color: var(--warning); font-weight: 600; }

.table-wrap { overflow: auto; border: 1px solid var(--line); border-radius: var(--radius-lg); }
.table { width: 100%; border-collapse: collapse; font-size: 0.86rem; }
.table th, .table td { padding: 11px 12px; border-bottom: 1px solid var(--line-soft); text-align: left; vertical-align: top; }
.table thead th {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ink-500);
    font-weight: 800;
    background: #f8fafc;
}
.table tbody tr:hover { background: #fafbfc; }
.table tbody tr:last-child td { border-bottom: 0; }

code, .code-block {
    font-family: ui-monospace, 'Cascadia Code', 'SF Mono', monospace;
    font-size: 0.84em;
}

.code-block {
    display: block;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    background: #f8fafc;
    word-break: break-all;
    overflow-x: auto;
}

.secret-panel {
    border: 1px solid #fed7aa;
    background: var(--warning-bg);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-bottom: var(--space-4);
}

.secret-panel.danger { border-color: #fecaca; background: var(--danger-bg); }

.sparkline { display: flex; align-items: flex-end; gap: 6px; height: 88px; padding-top: 8px; }
.spark-col { flex: 1; min-width: 18px; display: grid; justify-items: center; gap: 6px; }
.spark-bar {
    width: 100%;
    border-radius: 8px 8px 4px 4px;
    background: linear-gradient(180deg, var(--brand-accent), var(--brand-primary));
    min-height: 6px;
}
.spark-label { font-size: 0.68rem; color: var(--ink-500); font-weight: 600; }

.empty-state {
    border: 1px dashed #cbd5e1;
    border-radius: var(--radius-lg);
    padding: 28px 20px;
    text-align: center;
    color: var(--ink-500);
    background: #f8fafc;
}

.tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-top: var(--space-4); }

.env-banner {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
    font-size: 0.88rem;
    font-weight: 600;
}

.env-banner-body {
    display: grid;
    gap: 6px;
    flex: 1;
    min-width: 0;
}

.env-banner-body p {
    margin: 0;
    line-height: 1.6;
    font-weight: 500;
}

.env-banner-body code {
    font-size: 0.84rem;
}

.env-banner.test { background: var(--test-bg); border: 1px solid #ddd6fe; color: #5b21b6; }
.env-banner.live { background: var(--live-bg); border: 1px solid #bbf7d0; color: var(--live); }

.admin-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 4px 0 16px;
}

.brand-preview {
    width: 120px;
    height: 120px;
    border: 1px dashed var(--line);
    border-radius: var(--radius-lg);
    display: grid;
    place-items: center;
    background: var(--line-soft);
    overflow: hidden;
}

.brand-preview img { max-width: 100%; max-height: 100%; object-fit: contain; }

.skeleton { position: relative; overflow: hidden; background: #f1f5f9; border-radius: var(--radius-md); }
.skeleton::after {
    content: "";
    position: absolute;
    inset: 0;
    transform: translateX(-100%);
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.65), transparent);
    animation: shimmer 1.2s infinite;
}

@keyframes shimmer { 100% { transform: translateX(100%); } }

.public-shell { width: min(1200px, calc(100% - 32px)); margin: 0 auto; padding: 24px 0 48px; }
.public-topbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.public-hero { text-align: center; max-width: 720px; margin: 0 auto 32px; }
.public-hero h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); letter-spacing: -0.04em; margin: 0 0 12px; }
.public-hero p { color: var(--ink-500); font-size: 1.05rem; line-height: 1.7; margin: 0; }

.api-reference-frame {
    border: 1px solid var(--line);
    border-radius: var(--radius-xl);
    overflow: hidden;
    min-height: 72vh;
    background: #fff;
    box-shadow: var(--shadow-card);
}

.sandbox-card { max-width: 520px; margin: 48px auto; }
.sandbox-status { font-size: 2rem; font-weight: 800; letter-spacing: -0.03em; margin: 0; }

@media (max-width: 1080px) {
    .layout { grid-template-columns: 1fr; }
    .sidebar { position: static; }
    .grid-2, .grid-sidebar, .grid-3 { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .layout { width: calc(100% - 20px); padding-top: 16px; }
    .page-head { padding: 16px; }
    .head-actions { width: 100%; }
    .head-actions .btn, .head-actions .btn-outline { flex: 1; }
}