/* ============================================================
 * Adbook — design system v2
 * ============================================================ */

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

:root {
    /* Brand */
    --ab-primary: #4f46e5;
    --ab-primary-hover: #4338ca;
    --ab-primary-fg: #ffffff;
    --ab-primary-soft: #eef2ff;
    --ab-primary-border: #c7d2fe;

    /* Surfaces */
    --ab-bg: #f0f4fa;
    --ab-surface: #ffffff;
    --ab-surface-2: #f8fafc;
    --ab-border: #e2e8f0;
    --ab-border-2: #cbd5e1;

    /* Text */
    --ab-text: #0f172a;
    --ab-text-2: #475569;
    --ab-text-3: #94a3b8;

    /* Semantic */
    --ab-success: #16a34a;
    --ab-success-soft: #f0fdf4;
    --ab-success-border: #bbf7d0;
    --ab-warn: #d97706;
    --ab-warn-soft: #fffbeb;
    --ab-warn-border: #fde68a;
    --ab-danger: #dc2626;
    --ab-danger-soft: #fef2f2;
    --ab-danger-border: #fecaca;
    --ab-info: #0284c7;
    --ab-info-soft: #f0f9ff;
    --ab-info-border: #bae6fd;

    /* Sizing */
    --ab-radius-xs: 6px;
    --ab-radius-sm: 10px;
    --ab-radius: 14px;
    --ab-radius-lg: 20px;
    --ab-sidebar-w: 248px;
    --ab-topbar-h: 60px;

    /* Shadows */
    --ab-shadow-xs: 0 1px 3px rgba(15, 23, 42, .06), 0 0 0 1px rgba(15, 23, 42, .04);
    --ab-shadow-sm: 0 2px 8px rgba(15, 23, 42, .06), 0 0 0 1px rgba(15, 23, 42, .04);
    --ab-shadow: 0 4px 20px rgba(15, 23, 42, .08), 0 0 0 1px rgba(15, 23, 42, .04);
    --ab-shadow-lg: 0 12px 48px rgba(15, 23, 42, .12), 0 0 0 1px rgba(15, 23, 42, .05);
    --ab-shadow-modal: 0 32px 96px rgba(15, 23, 42, .28);

    /* Motion */
    --ab-ease: 150ms cubic-bezier(.4, 0, .2, 1);
    --ab-ease-slow: 300ms cubic-bezier(.4, 0, .2, 1);
}

@media (prefers-color-scheme: dark) {
    :root {
        --ab-bg: #0c0f1a;
        --ab-surface: #141824;
        --ab-surface-2: #1a1f2e;
        --ab-border: #1e2740;
        --ab-border-2: #253048;
        --ab-text: #f1f5f9;
        --ab-text-2: #94a3b8;
        --ab-text-3: #475569;
        --ab-primary-soft: #1e1b4b;
        --ab-primary-border: #4338ca;
        --ab-success-soft: #052e16;
        --ab-success-border: #166534;
        --ab-warn-soft: #1c0e00;
        --ab-warn-border: #92400e;
        --ab-danger-soft: #1c0606;
        --ab-danger-border: #991b1b;
        --ab-info-soft: #082032;
        --ab-info-border: #0c4a6e;
        --ab-shadow-xs: 0 1px 3px rgba(0, 0, 0, .5);
        --ab-shadow-sm: 0 2px 8px rgba(0, 0, 0, .4);
        --ab-shadow: 0 4px 20px rgba(0, 0, 0, .4);
        --ab-shadow-lg: 0 12px 48px rgba(0, 0, 0, .5);
        --ab-shadow-modal: 0 32px 96px rgba(0, 0, 0, .75);
    }
}

/* ── Reset & Base ──────────────────────────────────────────── */
*,
*::before,
*::after {
    box-sizing: border-box;
}

body.adbook-shell {
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    color: var(--ab-text);
    background: var(--ab-bg);
    margin: 0;
    font-size: 14px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
}

/* ── Topbar ────────────────────────────────────────────────── */
.adbook-topbar {
    height: var(--ab-topbar-h);
    background: var(--ab-surface);
    border-bottom: 1px solid var(--ab-border);
    padding: 0 1.25rem;
    display: flex;
    align-items: center;
    gap: .6rem;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.adbook-brand {
    display: flex;
    align-items: center;
    gap: .5rem;
    text-decoration: none;
    color: var(--ab-text);
    font-weight: 700;
    font-size: .95rem;
    letter-spacing: -.01em;
    flex-shrink: 0;
}

.adbook-brand-icon {
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, var(--ab-primary) 0%, #7c3aed 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
}

.adbook-topbar nav {
    display: flex;
    align-items: center;
    gap: .2rem;
    margin-left: .25rem;
}

.adbook-topbar nav a {
    color: var(--ab-text-2);
    text-decoration: none;
    padding: .35rem .7rem;
    border-radius: var(--ab-radius-xs);
    font-size: .83rem;
    font-weight: 500;
    transition: background var(--ab-ease), color var(--ab-ease);
}

.adbook-topbar nav a:hover {
    background: var(--ab-surface-2);
    color: var(--ab-text);
}

.adbook-topbar nav a.active {
    background: var(--ab-primary-soft);
    color: var(--ab-primary);
    font-weight: 600;
}

.adbook-topbar-end {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: .75rem;
}

.adbook-hamburger {
    display: none;
    background: transparent;
    border: 0;
    cursor: pointer;
    color: var(--ab-text-2);
    padding: .3rem;
    border-radius: var(--ab-radius-xs);
    flex-shrink: 0;
    line-height: 0;
    transition: background var(--ab-ease);
}

.adbook-hamburger:hover {
    background: var(--ab-surface-2);
    color: var(--ab-text);
}

@media (max-width: 860px) {
    .adbook-hamburger {
        display: flex;
    }
}

/* ── Layout ────────────────────────────────────────────────── */
.adbook-layout {
    display: grid;
    grid-template-columns: var(--ab-sidebar-w) 1fr;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

@media (max-width: 860px) {
    .adbook-layout {
        grid-template-columns: 1fr;
    }
}

/* ── Sidebar ───────────────────────────────────────────────── */
.adbook-sidebar {
    background: var(--ab-surface);
    border-right: 1px solid var(--ab-border);
    padding: .75rem .625rem;
    height: calc(100dvh - var(--ab-topbar-h));
    position: sticky;
    top: var(--ab-topbar-h);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

@media (max-width: 860px) {
    .adbook-sidebar {
        position: fixed;
        top: var(--ab-topbar-h);
        left: 0;
        bottom: 0;
        width: var(--ab-sidebar-w);
        transform: translateX(-100%);
        transition: transform var(--ab-ease-slow), box-shadow var(--ab-ease-slow);
        z-index: 90;
        height: auto;
    }

    .adbook-sidebar.open {
        transform: translateX(0);
        box-shadow: var(--ab-shadow-lg);
    }
}

.adbook-sidebar-section {
    font-size: .68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .09em;
    color: var(--ab-text-3);
    padding: .9rem .7rem .3rem;
    user-select: none;
}

.adbook-sidebar button {
    display: flex;
    align-items: center;
    gap: .6rem;
    width: 100%;
    padding: .55rem .7rem;
    background: transparent;
    border: 0;
    border-radius: var(--ab-radius-sm);
    color: var(--ab-text-2);
    text-align: left;
    cursor: pointer;
    font-size: .875rem;
    font-weight: 500;
    font-family: inherit;
    transition: background var(--ab-ease), color var(--ab-ease);
    line-height: 1.3;
}

.adbook-sidebar button svg {
    width: 15px;
    height: 15px;
    flex-shrink: 0;
    opacity: .65;
    transition: opacity var(--ab-ease);
}

.adbook-sidebar button:hover {
    background: var(--ab-surface-2);
    color: var(--ab-text);
}

.adbook-sidebar button:hover svg {
    opacity: 1;
}

.adbook-sidebar button.active {
    background: var(--ab-primary-soft);
    color: var(--ab-primary);
    font-weight: 600;
}

.adbook-sidebar button.active svg {
    opacity: 1;
}

/* Mobile overlay */
.adbook-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(5, 8, 22, .45);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    z-index: 80;
}

.adbook-sidebar-overlay.show {
    display: block;
}

/* ── Main content ──────────────────────────────────────────── */
.adbook-main {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    min-width: 0;
    overflow-y: auto;
    height: calc(100dvh - var(--ab-topbar-h));
    transition: opacity .15s ease;
}

.adbook-main.fading {
    opacity: 0;
}

@media (max-width: 860px) {
    .adbook-main {
        padding: 1rem .875rem;
    }
}

/* ── Cards ─────────────────────────────────────────────────── */
.adbook-card {
    background: var(--ab-surface);
    border: 1px solid var(--ab-border);
    border-radius: var(--ab-radius);
    padding: 1.25rem;
    box-shadow: var(--ab-shadow-xs);
}

.adbook-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: .75rem;
    margin-bottom: 1.1rem;
}

.adbook-card h2 {
    font-size: 1rem;
    margin: 0 0 1.1rem;
    font-weight: 700;
    color: var(--ab-text);
    letter-spacing: -.015em;
}

.adbook-card h2.no-mb {
    margin-bottom: 0;
}

.adbook-card .muted {
    color: var(--ab-text-2);
    font-size: .85rem;
}

/* ── Stats grid ────────────────────────────────────────────── */
.adbook-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: .75rem;
}

.adbook-stat {
    background: var(--ab-surface-2);
    border: 1px solid var(--ab-border);
    border-radius: var(--ab-radius);
    padding: 1.1rem 1rem;
    position: relative;
    overflow: hidden;
}

.adbook-stat::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--ab-primary), #7c3aed);
}

.adbook-stat .label {
    font-size: .7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--ab-text-3);
}

.adbook-stat .value {
    font-size: 1.6rem;
    font-weight: 800;
    margin-top: .3rem;
    color: var(--ab-text);
    letter-spacing: -.04em;
    line-height: 1.1;
}

.adbook-stat .delta {
    font-size: .78rem;
    color: var(--ab-success);
    margin-top: .25rem;
    font-weight: 600;
}

/* ── Tables ────────────────────────────────────────────────── */
.adbook-table-wrap {
    overflow-x: auto;
}

.adbook-table {
    width: 100%;
    border-collapse: collapse;
    font-size: .875rem;
}

.adbook-table th {
    padding: .6rem .75rem;
    text-align: left;
    font-size: .69rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .07em;
    color: var(--ab-text-3);
    border-bottom: 1px solid var(--ab-border);
    white-space: nowrap;
    background: var(--ab-surface-2);
}

.adbook-table th:first-child {
    border-radius: var(--ab-radius-xs) 0 0 0;
}

.adbook-table th:last-child {
    border-radius: 0 var(--ab-radius-xs) 0 0;
}

.adbook-table td {
    padding: .75rem .75rem;
    border-bottom: 1px solid var(--ab-border);
    vertical-align: middle;
    color: var(--ab-text);
}

.adbook-table tbody tr:last-child td {
    border-bottom: 0;
}

.adbook-table tbody tr {
    transition: background var(--ab-ease);
}

.adbook-table tbody tr:hover td {
    background: var(--ab-surface-2);
}

.adbook-table .text-end {
    text-align: right;
}

.adbook-table .muted {
    color: var(--ab-text-2);
}

.adbook-table small {
    font-size: .8rem;
    color: var(--ab-text-3);
}

.adbook-table code {
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    font-size: .78rem;
    background: var(--ab-surface-2);
    padding: .15rem .4rem;
    border-radius: 5px;
    border: 1px solid var(--ab-border);
    color: var(--ab-primary);
}

/* ── Status pills ──────────────────────────────────────────── */
.adbook-pill {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    padding: .22rem .6rem;
    border-radius: 999px;
    font-size: .71rem;
    font-weight: 700;
    text-transform: capitalize;
    white-space: nowrap;
    background: var(--ab-surface-2);
    color: var(--ab-text-2);
    border: 1px solid var(--ab-border);
}

.adbook-pill::before {
    content: '';
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: currentColor;
    flex-shrink: 0;
}

.adbook-pill[data-status="active"] {
    background: var(--ab-success-soft);
    color: var(--ab-success);
    border-color: var(--ab-success-border);
}

.adbook-pill[data-status="approved"] {
    background: var(--ab-info-soft);
    color: var(--ab-info);
    border-color: var(--ab-info-border);
}

.adbook-pill[data-status="pending_review"] {
    background: var(--ab-warn-soft);
    color: var(--ab-warn);
    border-color: var(--ab-warn-border);
}

.adbook-pill[data-status="rejected"],
.adbook-pill[data-status="banned"],
.adbook-pill[data-status="suspended"] {
    background: var(--ab-danger-soft);
    color: var(--ab-danger);
    border-color: var(--ab-danger-border);
}

.adbook-pill[data-status="paused"] {
    background: var(--ab-warn-soft);
    color: var(--ab-warn);
    border-color: var(--ab-warn-border);
}

.adbook-pill[data-status="archived"] {
    background: var(--ab-surface-2);
    color: var(--ab-text-3);
    border-color: var(--ab-border);
}

.adbook-pill[data-status="draft"] {
    background: var(--ab-primary-soft);
    color: var(--ab-primary);
    border-color: var(--ab-primary-border);
}

/* ── Buttons ───────────────────────────────────────────────── */
.adbook-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .4rem;
    padding: .5rem 1rem;
    border-radius: var(--ab-radius-sm);
    border: 1px solid transparent;
    background: var(--ab-primary);
    color: var(--ab-primary-fg);
    cursor: pointer;
    font-size: .84rem;
    font-weight: 600;
    font-family: inherit;
    line-height: 1.2;
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
    -webkit-user-select: none;
    transition: background var(--ab-ease), box-shadow var(--ab-ease), transform var(--ab-ease);
}

.adbook-btn:hover:not([disabled]) {
    background: var(--ab-primary-hover);
    box-shadow: 0 4px 14px rgba(79, 70, 229, .35);
}

.adbook-btn:active:not([disabled]) {
    transform: scale(.97);
}

.adbook-btn:focus-visible {
    outline: 2px solid var(--ab-primary);
    outline-offset: 2px;
}

.adbook-btn.ghost {
    background: transparent;
    color: var(--ab-primary);
    border-color: var(--ab-primary-border);
}

.adbook-btn.ghost:hover:not([disabled]) {
    background: var(--ab-primary-soft);
    box-shadow: none;
}

.adbook-btn.subtle {
    background: var(--ab-surface-2);
    color: var(--ab-text-2);
    border-color: var(--ab-border);
}

.adbook-btn.subtle:hover:not([disabled]) {
    background: var(--ab-border);
    color: var(--ab-text);
    box-shadow: none;
}

.adbook-btn.danger {
    background: var(--ab-danger);
}

.adbook-btn.danger:hover:not([disabled]) {
    background: #b91c1c;
    box-shadow: 0 4px 14px rgba(220, 38, 38, .35);
}

.adbook-btn.sm {
    padding: .3rem .65rem;
    font-size: .78rem;
    border-radius: var(--ab-radius-xs);
}

.adbook-btn[disabled] {
    opacity: .4;
    cursor: not-allowed;
}

.adbook-btn-group {
    display: flex;
    gap: .35rem;
    align-items: center;
    flex-wrap: wrap;
}

/* ── Forms ─────────────────────────────────────────────────── */
.adbook-form {
    display: grid;
    gap: 1rem;
}

.adbook-form label {
    display: grid;
    gap: .3rem;
    font-size: .8rem;
    color: var(--ab-text-2);
    font-weight: 600;
    letter-spacing: -.005em;
}

.adbook-form input,
.adbook-form select,
.adbook-form textarea,
.adbook-input {
    padding: .6rem .8rem;
    border-radius: var(--ab-radius-sm);
    border: 1.5px solid var(--ab-border-2);
    font: inherit;
    font-size: .875rem;
    background: var(--ab-surface);
    color: var(--ab-text);
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    transition: border-color var(--ab-ease), box-shadow var(--ab-ease);
}

.adbook-form input:focus,
.adbook-form select:focus,
.adbook-form textarea:focus,
.adbook-input:focus {
    outline: none;
    border-color: var(--ab-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, .12);
}

.adbook-form textarea {
    min-height: 88px;
    resize: vertical;
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: .82rem;
}

.adbook-form .row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: .75rem;
}

@media (max-width: 600px) {
    .adbook-form .row {
        grid-template-columns: 1fr;
    }
}

.adbook-form .actions {
    display: flex;
    gap: .5rem;
    justify-content: flex-end;
    padding-top: .25rem;
}

/* ── Loading & Empty states ────────────────────────────────── */
.adbook-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 1.5rem;
}

/* Spinner */
.ab-spinner {
    width: 28px;
    height: 28px;
    border: 2.5px solid var(--ab-border);
    border-top-color: var(--ab-primary);
    border-radius: 50%;
    animation: ab-spin .65s linear infinite;
    flex-shrink: 0;
}

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

/* Skeleton shimmer */
.ab-skel {
    background: linear-gradient(90deg,
            var(--ab-border) 25%,
            var(--ab-surface-2) 50%,
            var(--ab-border) 75%);
    background-size: 400% 100%;
    animation: ab-shimmer 1.5s ease infinite;
    border-radius: var(--ab-radius-sm);
}

@keyframes ab-shimmer {
    from {
        background-position: 100% 0;
    }

    to {
        background-position: -100% 0;
    }
}

.ab-skel-stat {
    height: 88px;
}

.ab-skel-line {
    height: 14px;
}

.ab-skel-row {
    height: 44px;
}

.ab-skel-chart {
    height: 120px;
}

.adbook-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: .75rem;
    padding: 3rem 1.5rem;
    color: var(--ab-text-3);
    text-align: center;
}

.adbook-empty svg {
    width: 44px;
    height: 44px;
    opacity: .3;
}

.adbook-empty p {
    margin: 0;
    font-size: .9rem;
    line-height: 1.5;
}

.adbook-empty p strong {
    color: var(--ab-text-2);
}

/* ── Toast ─────────────────────────────────────────────────── */
.adbook-toast-stack {
    position: fixed;
    bottom: 1.25rem;
    right: 1.25rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: .45rem;
    align-items: flex-end;
    pointer-events: none;
}

.adbook-toast {
    background: #1e293b;
    color: #f1f5f9;
    padding: .75rem 1.1rem;
    border-radius: var(--ab-radius);
    box-shadow: var(--ab-shadow-lg);
    font-size: .875rem;
    font-weight: 500;
    pointer-events: auto;
    opacity: 0;
    transform: translateX(20px) scale(.95);
    transition: opacity .2s, transform .2s;
    max-width: 340px;
    line-height: 1.4;
    border-left: 3px solid var(--ab-primary);
}

.adbook-toast.show {
    opacity: 1;
    transform: none;
}

.adbook-toast.error {
    border-left-color: var(--ab-danger);
}

.adbook-toast.ok {
    border-left-color: var(--ab-success);
}

/* ── Modal ─────────────────────────────────────────────────── */
.adbook-modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(5, 8, 22, .6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 9000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 4vh 1rem 2rem;
    overflow-y: auto;
    animation: ab-fade-in .15s ease;
}

@keyframes ab-fade-in {
    from {
        opacity: 0;
    }
}

.adbook-modal {
    background: var(--ab-surface);
    border: 1px solid var(--ab-border);
    border-radius: var(--ab-radius-lg);
    width: 100%;
    max-width: 640px;
    padding: 1.5rem;
    box-shadow: var(--ab-shadow-modal);
    animation: ab-slide-up .18s cubic-bezier(.16, 1, .3, 1);
}

@keyframes ab-slide-up {
    from {
        transform: translateY(16px);
        opacity: 0;
    }
}

.adbook-modal header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--ab-border);
}

.adbook-modal h3 {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -.015em;
}

.close-x {
    background: var(--ab-surface-2);
    border: 1px solid var(--ab-border);
    border-radius: var(--ab-radius-xs);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--ab-text-2);
    font-size: 1.1rem;
    line-height: 1;
    flex-shrink: 0;
    transition: background var(--ab-ease), color var(--ab-ease);
}

.close-x:hover {
    background: var(--ab-border);
    color: var(--ab-text);
}

/* ── Charts ────────────────────────────────────────────────── */
.adbook-chart-wrap {
    height: 120px;
    margin-top: .75rem;
    position: relative;
}

.adbook-chart {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    display: block;
    overflow: visible;
}

/* ── Grids ─────────────────────────────────────────────────── */
.adbook-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

@media (max-width: 800px) {
    .adbook-grid-2 {
        grid-template-columns: 1fr;
    }
}

/* ── Creative preview ──────────────────────────────────────── */
.adbook-creative-preview {
    border: 1.5px dashed var(--ab-border-2);
    border-radius: var(--ab-radius);
    padding: 1.25rem;
    background: var(--ab-surface-2);
}

.adbook-creative-preview img {
    max-width: 100%;
    border-radius: var(--ab-radius-sm);
}

/* ── Misc utilities ────────────────────────────────────────── */
.muted {
    color: var(--ab-text-2);
}

.small {
    font-size: .8rem;
}

.text-end {
    text-align: right;
}