/* ================================================================
   Interstitial Manager — Main Stylesheet
   Modern dark-mode compatible, CSS variables, responsive
   ================================================================ */

/* ----------------------------------------------------------------
   CSS Variables / Design Tokens
   ---------------------------------------------------------------- */
:root {
    /* Colors */
    --color-bg:          #0f1117;
    --color-surface:     #161b27;
    --color-surface-2:   #1d2535;
    --color-surface-3:   #242d40;
    --color-border:      #2d3748;
    --color-border-2:    #374151;

    --color-text:        #e2e8f0;
    --color-text-muted:  #8892a4;
    --color-text-faint:  #4a5568;

    --color-primary:     #4f46e5;
    --color-primary-hover: #4338ca;
    --color-primary-light: rgba(79, 70, 229, 0.15);

    --color-success:     #10b981;
    --color-success-bg:  rgba(16, 185, 129, 0.12);
    --color-warning:     #f59e0b;
    --color-warning-bg:  rgba(245, 158, 11, 0.12);
    --color-danger:      #ef4444;
    --color-danger-bg:   rgba(239, 68, 68, 0.12);
    --color-info:        #3b82f6;
    --color-info-bg:     rgba(59, 130, 246, 0.12);

    --color-teal:        #14b8a6;
    --color-orange:      #f97316;
    --color-purple:      #a855f7;

    /* Sidebar */
    --sidebar-width:     240px;
    --sidebar-bg:        #0d1220;
    --topbar-height:     60px;

    /* Typography */
    --font-sans:         -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono:         'JetBrains Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;

    --text-xs:   0.75rem;
    --text-sm:   0.875rem;
    --text-base: 1rem;
    --text-lg:   1.125rem;
    --text-xl:   1.25rem;
    --text-2xl:  1.5rem;
    --text-3xl:  1.875rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;

    /* Borders & radius */
    --radius-sm: 4px;
    --radius:    8px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm:  0 1px 3px rgba(0,0,0,.4), 0 1px 2px rgba(0,0,0,.3);
    --shadow:     0 4px 6px rgba(0,0,0,.4), 0 2px 4px rgba(0,0,0,.3);
    --shadow-lg:  0 10px 25px rgba(0,0,0,.5), 0 5px 10px rgba(0,0,0,.3);
    --shadow-xl:  0 20px 40px rgba(0,0,0,.6);

    /* Transitions */
    --transition: 150ms ease;
    --transition-slow: 250ms ease;
}

/* Light theme override (optional) */
[data-theme="light"] {
    --color-bg:         #f8fafc;
    --color-surface:    #ffffff;
    --color-surface-2:  #f1f5f9;
    --color-surface-3:  #e2e8f0;
    --color-border:     #e2e8f0;
    --color-border-2:   #cbd5e1;
    --color-text:       #1e293b;
    --color-text-muted: #64748b;
    --color-text-faint: #94a3b8;
    --sidebar-bg:       #1e293b;
}

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

html { height: 100%; font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    min-height: 100%;
    -webkit-font-smoothing: antialiased;
}

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

img, svg { display: block; max-width: 100%; }

button { cursor: pointer; font-family: inherit; }

input, select, textarea, button {
    font-family: inherit;
    font-size: inherit;
}

/* ----------------------------------------------------------------
   Layout: App Shell
   ---------------------------------------------------------------- */
.app-body {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    min-height: 100vh;
}

.main-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ----------------------------------------------------------------
   Sidebar
   ---------------------------------------------------------------- */
.sidebar {
    background: var(--sidebar-bg);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    height: 100vh;
    position: sticky;
    top: 0;
    overflow-y: auto;
    z-index: 100;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-4);
    border-bottom: 1px solid var(--color-border);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-text);
    text-decoration: none;
    font-weight: 700;
    font-size: var(--text-base);
}
.brand-icon { font-size: 1.2rem; }
.brand-name { color: var(--color-text); }

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--color-text-muted);
    padding: var(--space-1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    transition: color var(--transition);
    cursor: pointer;
    flex-shrink: 0;
}
.sidebar-toggle:hover { color: var(--color-text); }

/* ----------------------------------------------------------------
   Sidebar collapsed (desktop toggle)
   ---------------------------------------------------------------- */
body.sidebar-collapsed .app-body {
    grid-template-columns: 60px 1fr;
}
body.sidebar-collapsed .sidebar .brand-name,
body.sidebar-collapsed .sidebar .nav-label,
body.sidebar-collapsed .sidebar .user-meta {
    display: none;
}
body.sidebar-collapsed .sidebar .sidebar-brand {
    justify-content: center;
    padding: 0;
}
body.sidebar-collapsed .sidebar .sidebar-header {
    justify-content: center;
    padding: var(--space-3) var(--space-2);
}
body.sidebar-collapsed .sidebar .nav-item {
    justify-content: center;
    padding: var(--space-2);
}
body.sidebar-collapsed .sidebar .nav-icon {
    width: auto;
}
body.sidebar-collapsed .sidebar .sidebar-footer {
    flex-direction: column;
    align-items: center;
    padding: var(--space-3) var(--space-2);
}
body.sidebar-collapsed .sidebar .user-info { display: none; }

.sidebar-nav {
    flex: 1;
    padding: var(--space-3) var(--space-2);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius);
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: var(--text-sm);
    font-weight: 500;
    transition: background var(--transition), color var(--transition);
}
.nav-item:hover {
    background: var(--color-surface-2);
    color: var(--color-text);
    text-decoration: none;
}
.nav-item.active {
    background: var(--color-primary-light);
    color: #818cf8;
}

.nav-icon { font-size: 1rem; width: 20px; text-align: center; flex-shrink: 0; }
.nav-label { white-space: nowrap; }

.sidebar-footer {
    padding: var(--space-4);
    border-top: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
}

.user-info { display: flex; align-items: center; gap: var(--space-2); min-width: 0; }
.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    color: white;
    font-size: var(--text-xs);
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.user-meta { min-width: 0; }
.user-name {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.user-role {
    font-size: 0.7rem;
    color: var(--color-text-muted);
    text-transform: capitalize;
}

.btn-logout {
    background: none;
    border: none;
    color: var(--color-text-muted);
    padding: var(--space-1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    flex-shrink: 0;
    transition: color var(--transition);
}
.btn-logout:hover { color: var(--color-danger); }

/* ----------------------------------------------------------------
   Topbar
   ---------------------------------------------------------------- */
.topbar {
    height: var(--topbar-height);
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--space-6);
    position: sticky;
    top: 0;
    z-index: 50;
}

.topbar-left { display: flex; align-items: center; gap: var(--space-4); }
.topbar-right { display: flex; align-items: center; gap: var(--space-2); }

.topbar-menu-btn {
    background: none;
    border: none;
    color: var(--color-text-muted);
    display: none;
    align-items: center;
    padding: var(--space-1);
}

.page-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text);
}


.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
}


/* ----------------------------------------------------------------
   Main Content
   ---------------------------------------------------------------- */
.main-content {
    flex: 1;
    padding: var(--space-6);
    max-width: 1400px;
    width: 100%;
}

/* ----------------------------------------------------------------
   Cards
   ---------------------------------------------------------------- */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--color-border);
}

.card-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text);
}

.card-action {
    font-size: var(--text-xs);
    color: var(--color-primary);
}

.card-body {
    padding: var(--space-5) var(--space-6);
}
.card-body.p-0 { padding: 0; }
.card--wide { grid-column: span 2; }



.table-card .data-table { 
    width: 100%;
    border-collapse: collapse;
}
    .table-card .data-table th { 
        text-align: left;
    }

/* ----------------------------------------------------------------
   Stats Grid
   ---------------------------------------------------------------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.stat-icon {
    width: 46px;
    height: 46px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}
.stat-icon--blue   { background: var(--color-info-bg);    color: var(--color-info);    }
.stat-icon--green  { background: var(--color-success-bg); color: var(--color-success); }
.stat-icon--purple { background: rgba(168,85,247,.12);     color: var(--color-purple);  }
.stat-icon--orange { background: rgba(249,115,22,.12);     color: var(--color-orange);  }
.stat-icon--teal   { background: rgba(20,184,166,.12);     color: var(--color-teal);    }

.stat-label {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-1);
}
.stat-value {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
}

/* ----------------------------------------------------------------
   Dashboard Grid
   ---------------------------------------------------------------- */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-6);
    margin-bottom: var(--space-6);
}

/* ----------------------------------------------------------------
   Campaign List in Dashboard
   ---------------------------------------------------------------- */
.campaign-list { }
.campaign-item {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-3) var(--space-5);
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition);
}
.campaign-item:last-child { border-bottom: none; }
.campaign-item:hover { background: var(--color-surface-2); }
.campaign-item-info { flex: 1; min-width: 0; }
.campaign-item-name a {
    font-weight: 500;
    color: var(--color-text);
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}
.campaign-item-name a:hover { color: var(--color-primary); }
.campaign-item-meta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-top: 2px;
}
.campaign-item-stats {
    display: flex;
    gap: var(--space-4);
    flex-shrink: 0;
}
.campaign-item-stats span {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}
.campaign-item-actions {
    display: flex;
    gap: var(--space-1);
    flex-shrink: 0;
}

/* ----------------------------------------------------------------
   Activity Feed
   ---------------------------------------------------------------- */
.activity-feed { }
.activity-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-5);
    border-bottom: 1px solid var(--color-border);
    font-size: var(--text-xs);
}
.activity-item:last-child { border-bottom: none; }
.activity-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    flex-shrink: 0;
}
.activity-dot--impression { background: var(--color-info); }
.activity-dot--click      { background: var(--color-success); }
.activity-body { flex: 1; color: var(--color-text-muted); }
.activity-body strong { color: var(--color-text); }
.activity-time { color: var(--color-text-faint); white-space: nowrap; }

/* ----------------------------------------------------------------
   Campaign Cards Grid
   ---------------------------------------------------------------- */
.publisher-group-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
    margin-top: var(--space-5);
    padding-bottom: var(--space-2);
    border-bottom: 1px solid var(--color-border);
}
.publisher-group-header:first-of-type { margin-top: 0; }
.publisher-group-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
}
.publisher-group-link:hover { color: var(--color-primary); }
.publisher-group-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-muted);
}
.publisher-group-count {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    padding: 1px 8px;
}

.campaigns-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.campaign-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: border-color var(--transition), box-shadow var(--transition);
}
.campaign-card:hover {
    border-color: var(--color-border-2);
    box-shadow: var(--shadow);
}

.campaign-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-border);
}

.campaign-type-badge {
    font-size: var(--text-xs);
    padding: 2px var(--space-2);
    border-radius: var(--radius-full);
    background: var(--color-surface-2);
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
    font-weight: 500;
    text-transform: capitalize;
}

.campaign-card-actions { display: flex; align-items: center; gap: var(--space-1); }

.campaign-card-body {
    padding: var(--space-4);
}

.campaign-card-name {
    font-size: var(--text-base);
    font-weight: 600;
    margin-bottom: var(--space-2);
}
.campaign-card-name a {
    color: var(--color-text);
    text-decoration: none;
}
.campaign-card-name a:hover { color: var(--color-primary); }

.campaign-card-meta { display: flex; align-items: center; gap: var(--space-2); flex-wrap: wrap; }

.campaign-card-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    border-top: 1px solid var(--color-border);
}

.camp-stat {
    text-align: center;
    padding: var(--space-3);
    border-right: 1px solid var(--color-border);
}
.camp-stat:last-child { border-right: none; }
.camp-stat-value {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-text);
}
.camp-stat-label {
    font-size: 0.65rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: .05em;
    margin-top: 2px;
}

/* Toggle switch */
.btn-toggle {
    position: relative;
    width: 40px;
    height: 22px;
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
}
.toggle-track {
    display: block;
    width: 40px;
    height: 22px;
    border-radius: var(--radius-full);
    background: var(--color-surface-3);
    border: 1px solid var(--color-border);
    transition: background var(--transition);
    position: relative;
}
.toggle-track::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: var(--radius-full);
    background: var(--color-text-muted);
    top: 2px;
    left: 2px;
    transition: transform var(--transition), background var(--transition);
}
.btn-toggle.active .toggle-track { background: var(--color-success-bg); border-color: var(--color-success); }
.btn-toggle.active .toggle-track::after {
    transform: translateX(18px);
    background: var(--color-success);
}

/* ----------------------------------------------------------------
   Dropdown
   ---------------------------------------------------------------- */
.dropdown { position: relative; }
.dropdown-menu {
    position: absolute;
    right: 0;
    top: calc(100% + 4px);
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    min-width: 180px;
    box-shadow: var(--shadow-lg);
    z-index: 200;
    display: none;
    overflow: hidden;
}
.dropdown.open .dropdown-menu { display: block; }
.dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    color: var(--color-text);
    cursor: pointer;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    text-decoration: none;
    transition: background var(--transition);
}
.dropdown-item:hover { background: var(--color-surface-3); text-decoration: none; }
.dropdown-item--danger { color: var(--color-danger); }
.dropdown-divider { height: 1px; background: var(--color-border); margin: var(--space-1) 0; }

/* ----------------------------------------------------------------
   Buttons
   ---------------------------------------------------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius);
    font-size: var(--text-sm);
    font-weight: 500;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background var(--transition), border-color var(--transition), color var(--transition), box-shadow var(--transition);
    text-decoration: none;
    white-space: nowrap;
    line-height: 1.4;
}
.btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}
.btn:hover { text-decoration: none; }

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

.btn-secondary {
    background: var(--color-surface-2);
    color: var(--color-text);
    border-color: var(--color-border);
}
.btn-secondary:hover { background: var(--color-surface-3); color: var(--color-text); }

.btn-ghost {
    background: transparent;
    color: var(--color-text-muted);
    border-color: transparent;
}
.btn-ghost:hover { background: var(--color-surface-2); color: var(--color-text); }

.btn-danger {
    background: var(--color-danger);
    color: white;
    border-color: var(--color-danger);
}
.btn-danger:hover { background: #dc2626; color: white; }

.btn-sm  { padding: var(--space-1) var(--space-3); font-size: var(--text-xs); }
.btn-xs  { padding: 2px var(--space-2); font-size: 0.7rem; }
.btn-block { width: 100%; }
.btn-icon { padding: var(--space-1); width: 30px; height: 30px; }

/* ----------------------------------------------------------------
   Badges
   ---------------------------------------------------------------- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .06em;
    border: 1px solid transparent;
}
.badge--active   { background: var(--color-success-bg); color: var(--color-success); border-color: rgba(16,185,129,.25); }
.badge--paused   { background: var(--color-warning-bg); color: var(--color-warning); border-color: rgba(245,158,11,.25); }
.badge--draft    { background: var(--color-surface-3);  color: var(--color-text-muted); border-color: var(--color-border); }
.badge--archived { background: var(--color-surface-3);  color: var(--color-text-faint); }
.badge--ended    { background: var(--color-danger-bg);  color: var(--color-danger); }

/* meta text */
.meta-text { font-size: var(--text-xs); color: var(--color-text-muted); }

/* ----------------------------------------------------------------
   Tables
   ---------------------------------------------------------------- */
.table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--text-sm);
}
.table th {
    text-align: left;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: .06em;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-surface-2);
}
.table td {
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
    vertical-align: middle;
}
.table tbody tr:hover { background: var(--color-surface-2); }
.table tbody tr:last-child td { border-bottom: none; }
.table-compact td, .table-compact th { padding: var(--space-2) var(--space-3); }
.table-link { color: var(--color-text); font-weight: 500; }
.table-link:hover { color: var(--color-primary); }

.ctr-bar { font-size: var(--text-sm); }
.mini-bar-wrap { display: flex; align-items: center; gap: var(--space-2); }
.mini-bar {
    height: 6px;
    border-radius: var(--radius-full);
    background: var(--color-primary);
    min-width: 2px;
    flex-shrink: 0;
}

/* ----------------------------------------------------------------
   Forms
   ---------------------------------------------------------------- */
.form-group { margin-bottom: var(--space-4); }
.form-group--full { grid-column: 1 / -1; }
.form-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: var(--space-1);
}
.form-label-link { font-size: var(--text-xs); color: var(--color-primary); font-weight: 400; }
.form-input, .form-select, .form-textarea {
    display: block;
    width: 100%;
    padding: var(--space-2) var(--space-3);
    background: var(--color-surface-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    font-size: var(--text-sm);
    transition: border-color var(--transition), box-shadow var(--transition);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-light);
}
.form-input::placeholder { color: var(--color-text-faint); }
.form-select option { background: var(--color-surface-2); }
.form-textarea { resize: vertical; min-height: 80px; }
.form-help { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: var(--space-1); }
.form-check { display: flex; align-items: center; gap: var(--space-2); }
.form-check-label {
    font-size: var(--text-sm);
    color: var(--color-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}
.form-checkbox {
    width: 16px;
    height: 16px;
    accent-color: var(--color-primary);
    cursor: pointer;
    flex-shrink: 0;
}
.checkbox-group { display: flex; flex-wrap: wrap; gap: var(--space-3); }

.required { color: var(--color-danger); }
.input-password-wrap { position: relative; }
.input-password-wrap .form-input { padding-right: 40px; }
.toggle-password {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    padding: 0;
}
.toggle-password:hover { color: var(--color-text); }

.password-strength { font-size: var(--text-xs); margin-top: var(--space-1); min-height: 16px; font-weight: 500; }

/* ----------------------------------------------------------------
   Form pages (create / edit)
   ---------------------------------------------------------------- */
.form-page { max-width: 840px; }
.form-page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-6);
}
.form-page-actions { display: flex; gap: var(--space-2); }

.form-sections { display: flex; flex-direction: column; gap: var(--space-1); }
.form-section {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5) var(--space-6);
    margin-bottom: var(--space-4);
}
.form-section-title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: .06em;
    margin-bottom: var(--space-4);
}
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

.form-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-6);
    margin-top: var(--space-2);
    border-top: 1px solid var(--color-border);
    gap: var(--space-3);
}
.form-footer-right { display: flex; gap: var(--space-2); }
.inline-form { display: inline; }

/* ----------------------------------------------------------------
   Pagination
   ---------------------------------------------------------------- */
.pagination {
    display: flex;
    gap: var(--space-1);
    justify-content: center;
    margin-top: var(--space-4);
}
.pagination-item {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    text-decoration: none;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    transition: background var(--transition), color var(--transition);
}
.pagination-item.active,
.pagination-item:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    text-decoration: none;
}

/* ----------------------------------------------------------------
   Page toolbar
   ---------------------------------------------------------------- */
.page-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-5);
    gap: var(--space-4);
    flex-wrap: wrap;
}
.filter-tabs { display: flex; gap: var(--space-1); flex-wrap: wrap; }
.filter-tab {
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 500;
    color: var(--color-text-muted);
    text-decoration: none;
    border: 1px solid var(--color-border);
    transition: background var(--transition), color var(--transition);
}
.filter-tab:hover { background: var(--color-surface-2); color: var(--color-text); text-decoration: none; }
.filter-tab.active { background: var(--color-primary-light); color: #818cf8; border-color: transparent; }

/* ----------------------------------------------------------------
   Alerts
   ---------------------------------------------------------------- */
.alert {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius);
    font-size: var(--text-sm);
    margin-bottom: var(--space-4);
    border: 1px solid transparent;
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
}
.alert-success { background: var(--color-success-bg); color: var(--color-success); border-color: rgba(16,185,129,.25); }
.alert-error   { background: var(--color-danger-bg);  color: var(--color-danger);  border-color: rgba(239,68,68,.25); }
.alert-warning { background: var(--color-warning-bg); color: var(--color-warning); border-color: rgba(245,158,11,.25); }
.alert-info    { background: var(--color-info-bg);    color: var(--color-info);    border-color: rgba(59,130,246,.25); }

/* ----------------------------------------------------------------
   Empty states
   ---------------------------------------------------------------- */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-12) var(--space-8);
    text-align: center;
    color: var(--color-text-muted);
    gap: var(--space-4);
}
.empty-state p { max-width: 300px; }
.empty-state--page { min-height: 400px; }

/* ----------------------------------------------------------------
   Embed code blocks
   ---------------------------------------------------------------- */
.embed-code-block {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-4);
    position: relative;
    margin-bottom: var(--space-4);
}
.embed-code-block pre, .embed-code-block code {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: #a5b4fc;
    word-break: break-all;
    white-space: pre-wrap;
}
.embed-code-block--large { margin-bottom: var(--space-6); }
.embed-code-block--large pre { font-size: var(--text-sm); }

.copy-btn {
    position: absolute;
    top: var(--space-2);
    right: var(--space-2);
}

.embed-notes { font-size: var(--text-sm); }
.embed-notes h4 { margin-bottom: var(--space-2); font-size: var(--text-sm); }
.embed-notes ul { padding-left: 1.5rem; color: var(--color-text-muted); }
.embed-notes ul li { margin-bottom: var(--space-1); }

.embed-alt-title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-muted);
    margin: var(--space-4) 0 var(--space-2);
}

.embed-page-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-6);
    align-items: start;
}

.embed-features { display: flex; flex-direction: column; gap: var(--space-1); }
.embed-feature { font-size: var(--text-xs); color: var(--color-success); }

/* ----------------------------------------------------------------
   Detail list
   ---------------------------------------------------------------- */
.detail-list {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
}
.detail-list dt { color: var(--color-text-muted); font-weight: 500; }
.detail-list dd { color: var(--color-text); }

/* ----------------------------------------------------------------
   Auth layout
   ---------------------------------------------------------------- */
.auth-body {
    display: flex;
    min-height: 100vh;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    background-image: radial-gradient(ellipse at 30% 20%, rgba(79,70,229,.08) 0%, transparent 60%),
                      radial-gradient(ellipse at 70% 80%, rgba(168,85,247,.06) 0%, transparent 60%);
}
.auth-wrapper {
    width: 100%;
    max-width: 420px;
    padding: var(--space-6) var(--space-4);
}
.auth-brand {
    text-align: center;
    margin-bottom: var(--space-8);
}
.auth-logo {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--color-text);
    text-decoration: none;
}
.auth-tagline {
    font-size: var(--text-xs);
    color: var(--color-text-faint);
    margin-top: var(--space-1);
}

.auth-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    box-shadow: var(--shadow-xl);
}
.auth-title {
    font-size: var(--text-2xl);
    font-weight: 700;
    margin-bottom: var(--space-1);
}
.auth-subtitle {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    margin-bottom: var(--space-6);
}

.auth-form { display: flex; flex-direction: column; gap: var(--space-4); }

.auth-switch {
    text-align: center;
    font-size: var(--text-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-5);
}

/* ----------------------------------------------------------------
   Analytics breakdown grid
   ---------------------------------------------------------------- */
.analytics-breakdown-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

/* ----------------------------------------------------------------
   Error page
   ---------------------------------------------------------------- */
.error-page { text-align: center; }
.error-code { font-size: 6rem; font-weight: 900; color: var(--color-primary); line-height: 1; }
.error-title { font-size: var(--text-2xl); margin: var(--space-3) 0; }
.error-message { color: var(--color-text-muted); margin-bottom: var(--space-6); }

/* ----------------------------------------------------------------
   Help text
   ---------------------------------------------------------------- */
.help-text { font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-4); }

/* ----------------------------------------------------------------
   Responsive
   ---------------------------------------------------------------- */
@media (max-width: 1280px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .dashboard-grid { grid-template-columns: 1fr; }
    .analytics-breakdown-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 1024px) {
    .app-body { grid-template-columns: 1fr; }
    .sidebar {
        position: fixed;
        left: -100%;
        top: 0;
        height: 100vh;
        z-index: 300;
        transition: left var(--transition-slow);
    }
    .sidebar.open { left: 0; }
    .topbar-menu-btn { display: flex; }
    .card--wide { grid-column: span 1; }
    .embed-page-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .main-content { padding: var(--space-4); }
    .campaigns-grid { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .analytics-breakdown-grid { grid-template-columns: 1fr; }
    .campaign-card-stats { grid-template-columns: repeat(3, 1fr); }
    .page-toolbar { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr; }
    .auth-card { padding: var(--space-5); }
}