/* --- Reset & Variables ---------------------------------------------------- */

:root {
    --color-bg: #f5f6fa;
    --color-surface: #ffffff;
    --color-primary: #3b82f6;
    --color-primary-hover: #2563eb;
    --color-text: #1e293b;
    --color-text-muted: #64748b;
    --color-border: #e2e8f0;
    --color-success: #22c55e;
    --color-error: #ef4444;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* --- Topbar --------------------------------------------------------------- */

.topbar {
    display: flex;
    align-items: center;
    gap: 2rem;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0 2rem;
    height: 56px;
    box-shadow: var(--shadow);
}

.topbar-brand a {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-text);
}

.topbar-brand a:hover {
    text-decoration: none;
}

.topbar-nav {
    display: flex;
    gap: 1.5rem;
}

.topbar-link {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

.topbar-link:hover {
    color: var(--color-text);
    text-decoration: none;
}

.topbar-user {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* --- Container ------------------------------------------------------------ */

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem;
}

/* --- Page Header ---------------------------------------------------------- */

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.page-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.page-actions {
    display: flex;
    gap: 0.5rem;
}

/* --- Buttons -------------------------------------------------------------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
    text-decoration: none;
    line-height: 1.4;
}

.btn:hover {
    text-decoration: none;
}

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

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

.btn-secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-bg);
}

.btn-sm {
    padding: 0.3rem 0.75rem;
    font-size: 0.8rem;
}

.btn-block {
    width: 100%;
}

/* --- Tables --------------------------------------------------------------- */

.table {
    width: 100%;
    background: var(--color-surface);
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    border-collapse: separate;
    border-spacing: 0;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.table th,
.table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.table th {
    background: var(--color-bg);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--color-text-muted);
}

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

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

/* --- Badges --------------------------------------------------------------- */

.badge {
    display: inline-block;
    padding: 0.15rem 0.55rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 999px;
}

.badge-success {
    background: #dcfce7;
    color: #166534;
}

.badge-muted {
    background: #f1f5f9;
    color: var(--color-text-muted);
}

/* --- Stats Grid ----------------------------------------------------------- */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-top: 0.25rem;
}

/* --- Sections ------------------------------------------------------------- */

.section {
    margin-bottom: 2rem;
}

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

.section-header h2 {
    font-size: 1.1rem;
    font-weight: 600;
}

/* --- Detail Card ---------------------------------------------------------- */

.detail-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.detail-grid {
    display: grid;
    gap: 1rem;
}

.detail-row {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--color-border);
}

.detail-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.detail-label {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* --- Forms ---------------------------------------------------------------- */

.form-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    max-width: 600px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-weight: 600;
    font-size: 0.85rem;
    margin-bottom: 0.35rem;
    color: var(--color-text);
}

.form-input,
.form-card input[type="text"],
.form-card input[type="email"],
.form-card input[type="password"],
.form-card input[type="url"],
.form-card textarea,
.form-card select {
    width: 100%;
    padding: 0.55rem 0.75rem;
    font-size: 0.9rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface);
    color: var(--color-text);
    transition: border-color 0.15s;
}

.form-input:focus,
.form-card input:focus,
.form-card textarea:focus,
.form-card select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

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

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

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

/* --- Auth ----------------------------------------------------------------- */

.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80vh;
}

.auth-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2.5rem;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow);
    text-align: center;
}

.auth-card h1 {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.auth-subtitle {
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.auth-card .form-group {
    text-align: left;
}

/* --- Alerts --------------------------------------------------------------- */

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

.alert-error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-success {
    background: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
}

/* --- Empty State ---------------------------------------------------------- */

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--color-text-muted);
}

/* --- Pagination ----------------------------------------------------------- */

.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.pagination-info {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* --- Checkbox ------------------------------------------------------------- */

.form-card input[type="checkbox"] {
    width: auto;
}

/* --- Integration Cards ---------------------------------------------------- */

.integration-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow);
}

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

.integration-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1rem;
}

.integration-details {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.integration-details .detail-row {
    padding-bottom: 0.5rem;
}

.badge-warning {
    background: #fef9c3;
    color: #854d0e;
}

.badge-error {
    background: #fef2f2;
    color: #991b1b;
}

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

/* --- Offer-specific ------------------------------------------------------- */

.text-mono {
    font-family: "SF Mono", "Fira Code", "Consolas", monospace;
    font-size: 0.85rem;
}

.text-muted {
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

.page-subtitle {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

.alert-warning {
    background: #fefce8;
    color: #854d0e;
    border: 1px solid #fef08a;
}

.description-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    line-height: 1.7;
    overflow-wrap: break-word;
}

.description-card img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    margin: 0.5rem 0;
}

.raw-payload-toggle {
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-text-muted);
    padding: 0.5rem 0;
}

.raw-payload {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1rem;
    font-size: 0.8rem;
    overflow-x: auto;
    max-height: 400px;
    overflow-y: auto;
    margin-top: 0.5rem;
}

/* --- Inline Form ---------------------------------------------------------- */

.inline-form-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.inline-form-row .form-input,
.inline-form-row select {
    flex: 1;
    padding: 0.45rem 0.75rem;
    font-size: 0.9rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface);
    color: var(--color-text);
}