:root {
    --sidebar-width: 248px;
    --sidebar-collapsed-width: 78px;
    --bg: #eef0f7;
    --page-bg: #eef0f7;
    --sidebar-bg: #ffffff;
    --sidebar-text: #3f4254;
    --sidebar-muted: #8a8d9b;
    --sidebar-hover: #f2f3f9;
    --sidebar-accent: #5b5bd6;
    --sidebar-active: #5b5bd6;
    --card-bg: #fff;
    --surface-hover: #f2f3f9;
    --th-bg: #f4f5fb;
    --input-bg: #fff;
    --border: #e6e7f0;
    --accent: #5b5bd6;
    --accent-dark: #4a4ac0;
    --accent-soft: rgba(91,91,214,.12);
    --danger: #d13438;
    --success: #107c10;
    --warn: #797673;
    --text: #323130;
    --text-muted: #605e5c;
    --surface-2: #2d2d4e;
    --font: 'Segoe UI', system-ui, sans-serif;
    /* shape + depth — match sidebar */
    --radius-lg: 20px;
    --radius-md: 12px;
    --radius-sm: 10px;
    --shadow-card: 0 10px 34px rgba(30,30,70,.10);
    --shadow-soft: 0 6px 16px rgba(91,91,214,.22);
}

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

body {
    margin: 0; padding: 0; font-family: var(--font); font-size: 14px;
    background: var(--bg); color: var(--text);
}

/* ── Layout ── */
.app-layout { display: flex; height: 100vh; overflow: hidden; background: var(--page-bg); }

.sidebar {
    width: var(--sidebar-width); min-width: var(--sidebar-width);
    background: var(--sidebar-bg); color: var(--sidebar-text);
    display: flex; flex-direction: column;
    margin: 14px 0 14px 14px;
    border-radius: 20px;
    box-shadow: 0 10px 34px rgba(30,30,70,.10);
    transition: width 0.2s, min-width 0.2s;
    overflow: hidden;
}
.sidebar.collapsed { width: var(--sidebar-collapsed-width); min-width: var(--sidebar-collapsed-width); }
.sidebar.collapsed .nav-label,
.sidebar.collapsed .profile-name,
.sidebar.collapsed .logo-text,
.sidebar.collapsed .logo,
.sidebar.collapsed .switch,
.sidebar.collapsed .nav-divider { display: none; }
.sidebar.collapsed .sidebar-header { justify-content: center; }
.sidebar.collapsed .nav-item,
.sidebar.collapsed .nav-search { justify-content: center; gap: 0; }

.sidebar-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 16px 14px; flex-shrink: 0;
}
.logo { display: flex; align-items: center; gap: 11px; overflow: hidden; }
.logo-mark {
    width: 38px; height: 38px; flex-shrink: 0; border-radius: 11px;
    background: linear-gradient(135deg, #6d6df0, #5b5bd6);
    color: #fff; font-weight: 700; font-size: 14px; letter-spacing: .5px;
    display: flex; align-items: center; justify-content: center;
}
.logo-text { font-weight: 700; font-size: 16px; color: var(--sidebar-text); white-space: nowrap; }
.toggle-btn {
    width: 26px; height: 26px; flex-shrink: 0; border-radius: 50%; border: none;
    background: var(--sidebar-accent); color: #fff; cursor: pointer;
    font-size: 15px; line-height: 1; display: flex; align-items: center; justify-content: center;
    transition: transform .2s;
}
.toggle-btn.collapsed { transform: rotate(180deg); }

.profile-badge {
    display: flex; align-items: center; gap: 8px;
    margin: 0 12px 8px; padding: 8px 11px; border-radius: 11px;
    background: var(--sidebar-hover); font-size: 12px;
}
.profile-icon { font-size: 16px; }
.profile-name { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.identity-badge {
    display: flex; flex-direction: column;
    margin: 0 12px 10px; padding: 11px 12px;
    background: var(--sidebar-hover); border-radius: 13px;
    overflow: hidden;
}
.identity-name { font-size: 12.5px; font-weight: 600; color: var(--sidebar-text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.identity-email { font-size: 11px; color: var(--sidebar-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar.collapsed .identity-badge { display: none; }

.nav-search {
    display: flex; align-items: center; gap: 10px;
    margin: 2px 12px 8px; padding: 9px 12px; border-radius: 12px;
    background: var(--sidebar-hover); color: var(--sidebar-muted);
    font-size: 13.5px; white-space: nowrap;
}
.nav-search-input {
    flex: 1; min-width: 0; border: none; background: none; outline: none;
    color: var(--sidebar-text); font-family: inherit; font-size: 13.5px;
}
.nav-search-input::placeholder { color: var(--sidebar-muted); }
.nav-search-clear {
    border: none; background: none; cursor: pointer; padding: 0 2px;
    color: var(--sidebar-muted); font-size: 12px; line-height: 1;
}
.nav-search-clear:hover { color: var(--sidebar-text); }
.sidebar.collapsed .nav-search-input,
.sidebar.collapsed .nav-search-clear { display: none; }
.nav-empty { padding: 12px; font-size: 12px; color: var(--sidebar-muted); text-align: center; }

.nav-menu { flex: 1; overflow-y: auto; padding: 2px 12px 8px; }
.nav-divider { padding: 14px 8px 6px; font-size: 10px; text-transform: uppercase; letter-spacing: .8px; color: var(--sidebar-muted); }

.nav-item {
    display: flex; align-items: center; gap: 12px; width: 100%;
    padding: 10px 12px; margin: 2px 0; border-radius: 12px;
    color: var(--sidebar-text); text-decoration: none;
    font-size: 13.5px; white-space: nowrap;
    border: none; background: none; cursor: pointer; font-family: inherit; text-align: left;
    transition: background 0.15s, color 0.15s, box-shadow 0.15s;
}
.nav-item:hover { background: var(--sidebar-hover); }
.nav-item.active {
    background: var(--sidebar-accent); color: #fff;
    box-shadow: 0 6px 16px rgba(91,91,214,.35);
}
.nav-icon { font-size: 16px; min-width: 22px; text-align: center; }
.nav-label { overflow: hidden; text-overflow: ellipsis; }

.sidebar-footer {
    flex-shrink: 0; padding: 8px 12px 14px; margin-top: 4px;
    border-top: 1px solid var(--sidebar-hover);
}
.theme-toggle { color: var(--sidebar-text); }
.switch {
    margin-left: auto; width: 38px; height: 20px; border-radius: 20px;
    background: #cfd2e0; position: relative; flex-shrink: 0; transition: background .15s;
}
.switch::after {
    content: ''; position: absolute; top: 2px; left: 2px;
    width: 16px; height: 16px; border-radius: 50%; background: #fff;
    box-shadow: 0 1px 2px rgba(0,0,0,.2); transition: left .15s;
}
.switch.on { background: var(--sidebar-accent); }
.switch.on::after { left: 20px; }

.content { flex: 1; overflow-y: auto; padding: 24px 28px; }

/* ── Sidebar dark variant ── */
[data-theme="dark"] {
    --page-bg: #15161c;
    --bg: #15161c;
    --sidebar-bg: #1f2128;
    --sidebar-text: #e7e8ee;
    --sidebar-muted: #9a9db0;
    --sidebar-hover: #2a2c36;
    /* content surfaces */
    --card-bg: #1f2128;
    --surface-hover: #2a2c36;
    --th-bg: #262834;
    --input-bg: #262834;
    --border: #313442;
    --text: #e7e8ee;
    --text-muted: #9a9db0;
    --shadow-card: 0 10px 34px rgba(0,0,0,.35);
}
[data-theme="dark"] .nav-search:hover { background: #32343f; }
[data-theme="dark"] .switch { background: #3a3d4a; }

/* ── Cards ── */
.card { background: var(--card-bg); border-radius: var(--radius-lg); border: none; box-shadow: var(--shadow-card); padding: 22px 24px; margin-bottom: 16px; }
.card-title { font-size: 16px; font-weight: 700; margin: 0 0 12px 0; color: var(--text); }

/* ── Forms ── */
.form-group { margin-bottom: 14px; }
.form-label { display: block; font-size: 12px; font-weight: 600; margin-bottom: 4px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .4px; }
.form-input, .form-select, .form-textarea {
    width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: var(--radius-md);
    font-size: 14px; font-family: var(--font); background: var(--input-bg); color: var(--text);
    transition: border-color 0.15s, box-shadow 0.15s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.form-textarea { min-height: 80px; resize: vertical; }
.form-row { display: flex; gap: 12px; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 180px; }

/* ── Buttons ── */
.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 9px 18px; border-radius: var(--radius-md); cursor: pointer;
    font-size: 14px; font-family: var(--font); font-weight: 600;
    border: 1px solid transparent; transition: background 0.15s, box-shadow 0.15s, opacity 0.15s;
    white-space: nowrap;
}
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: #fff; border-color: transparent; }
.btn-primary:hover:not(:disabled) { background: var(--accent-dark); box-shadow: var(--shadow-soft); }
.btn-secondary { background: var(--card-bg); color: var(--text); border-color: var(--border); }
.btn-secondary:hover:not(:disabled) { background: var(--surface-hover); }
.btn-danger { background: var(--danger); color: #fff; border-color: transparent; }
.btn-danger:hover:not(:disabled) { background: #a4262c; box-shadow: 0 6px 16px rgba(209,52,56,.28); }
.btn-sm { padding: 5px 12px; font-size: 12px; border-radius: var(--radius-sm); }
.btn-link { background: none; border-color: transparent; color: var(--accent); padding: 5px 8px; }
.btn-link:hover:not(:disabled) { text-decoration: underline; }

/* ── User multi-select list ── */
.user-select-list {
    margin-top: 8px; max-height: 280px; overflow-y: auto;
    border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--card-bg);
}
.user-select-row {
    display: flex; align-items: center; gap: 10px;
    padding: 7px 12px; border-bottom: 1px solid var(--border); cursor: pointer; font-weight: normal;
}
.user-select-row:last-child { border-bottom: none; }
.user-select-row:hover { background: var(--surface-hover); }
.user-select-name { font-weight: 500; }

/* ── Progress ── */
.progress-bar { height: 6px; background: var(--surface-hover); border-radius: 3px; overflow: hidden; margin: 8px 0; }
.progress-fill { height: 100%; background: var(--accent); border-radius: 3px; transition: width 0.3s; }
.progress-msg { font-size: 12px; color: var(--text-muted); margin-bottom: 4px; }

/* ── Tables ── */
.data-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-md); }
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table th { background: var(--th-bg); padding: 10px 12px; text-align: left; font-weight: 700; border-bottom: 1px solid var(--border); white-space: nowrap; color: var(--text-muted); }
.data-table td { padding: 8px 12px; border-bottom: 1px solid var(--border); word-break: break-word; }
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--surface-hover); }
.data-table .num { text-align: right; font-variant-numeric: tabular-nums; }

/* ── Alerts ── */
.alert { padding: 11px 15px; border-radius: var(--radius-md); margin: 8px 0; font-size: 13px; }
.alert-error { background: #fde7e9; border: 1px solid #f4abab; color: #831111; }
.alert-success { background: #dff6dd; border: 1px solid #92c47a; color: #215732; }
.alert-info { background: #e8f4fd; border: 1px solid #84bae3; color: #1b4b72; }
.alert-warn { background: #fff4ce; border: 1px solid #ffd966; color: #523a00; }

/* ── Tags / Chips ── */
.chip { display: inline-block; padding: 2px 8px; border-radius: 12px; font-size: 11px; font-weight: 600; }
.chip-blue { background: #dbeafe; color: #1e40af; }
.chip-green { background: #d1fae5; color: #065f46; }
.chip-red { background: #fee2e2; color: #991b1b; }
.chip-yellow { background: #fef3c7; color: #92400e; }
.chip-gray { background: #f3f4f6; color: #374151; }

/* ── Misc ── */
.page-title { font-size: 20px; font-weight: 700; margin: 0 0 20px 0; color: var(--text); }
.page-subtitle { font-size: 13px; color: var(--text-muted); margin: -14px 0 20px 0; }
.flex-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.spacer { flex: 1; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.text-muted { color: var(--text-muted); font-size: 12px; }
.count-badge { background: var(--accent); color: #fff; border-radius: 12px; padding: 1px 8px; font-size: 11px; font-weight: 700; }

/* ── Site picker ── */
.site-list { max-height: 300px; overflow-y: auto; border: 1px solid var(--border); border-radius: var(--radius-md); }
.site-item { display: flex; align-items: center; gap: 8px; padding: 9px 12px; cursor: pointer; border-bottom: 1px solid var(--border); font-size: 13px; }
.site-item:last-child { border-bottom: none; }
.site-item:hover { background: var(--surface-hover); }
.site-item.selected { background: var(--accent-soft); }

/* ── CSV validation table ── */
.val-valid td { background: #f0fff4; }
.val-error td { background: #fff0f0; }
.val-error-msg { color: var(--danger); font-size: 11px; }

/* ── No-profile state ── */
.no-profile { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.no-profile h2 { color: var(--text); }

/* ── Modal ── */
.modal-overlay {
    position: fixed; inset: 0; z-index: 1000;
    display: flex; align-items: center; justify-content: center;
    background: rgba(0, 0, 0, .45);
    padding: 20px;
    animation: modal-fade .15s ease-out;
}
.modal-dialog {
    background: var(--card-bg); border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px rgba(30, 30, 70, .28);
    width: 100%; max-width: 440px; max-height: 90vh; overflow-y: auto;
    padding: 24px;
    animation: modal-rise .15s ease-out;
}
.modal-header { margin-bottom: 16px; }
.modal-header h3 { margin: 0 0 6px 0; font-size: 18px; font-weight: 600; color: var(--text); }
.modal-header .text-muted { margin: 0; line-height: 1.4; }
.modal-footer { display: flex; justify-content: flex-end; gap: 10px; margin-top: 20px; }
@keyframes modal-fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes modal-rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

/* ── Progress panel ── */
.progress-panel { margin: 8px 0; }
.progress-fill.indeterminate {
    width: 40%;
    background: var(--accent);
    animation: indeterminate 1.1s ease-in-out infinite;
}
@keyframes indeterminate {
    0%   { margin-left: -40%; }
    100% { margin-left: 100%; }
}

/* ── Feature cards (Home) ── */
.feature-card { cursor: pointer; transition: box-shadow .15s, transform .15s; }
.feature-card:hover { box-shadow: 0 14px 36px rgba(91, 91, 214, .22); transform: translateY(-2px); }

/* ── Theme (light-only palette; System resolves via JS) ── */
[data-theme="light"] { color-scheme: light; }