:root {
  --bg: #0a0c11;
  --panel: #11141b;
  --panel-2: #171b24;
  --panel-3: #1d2230;
  --border: #242a38;
  --text: #e8ebf2;
  --text-dim: #8e96a8;
  --accent: #4f7cff;
  --accent-hover: #6a91ff;
  --accent-soft: rgba(79, 124, 255, .14);
  --green: #35c977;
  --red: #ef5464;
  --yellow: #e6b23d;
  --radius: 12px;
  --shadow: 0 10px 30px rgba(0, 0, 0, .35);
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #f4f6fb;
  --panel: #ffffff;
  --panel-2: #f1f3f9;
  --panel-3: #e8ebf3;
  --border: #dfe3ec;
  --text: #161a23;
  --text-dim: #5d6576;
  --accent: #3563f0;
  --accent-hover: #2550d6;
  --accent-soft: rgba(53, 99, 240, .1);
  --green: #13994f;
  --red: #d63447;
  --yellow: #b7820f;
  --shadow: 0 10px 30px rgba(20, 30, 60, .12);
  color-scheme: light;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}
button, input, select, textarea { font-family: inherit; font-size: inherit; }
a { color: var(--accent); }
code { background: var(--panel-2); padding: 1px 5px; border-radius: 4px; font-size: 12px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* ---------- Login ---------- */
.login-body { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px;
  background: radial-gradient(1200px 600px at 10% -10%, var(--accent-soft), transparent), var(--bg); }
.login-card { width: 360px; max-width: 100%; background: var(--panel); border: 1px solid var(--border); border-radius: 16px;
  padding: 32px 28px; display: flex; flex-direction: column; gap: 12px; box-shadow: var(--shadow); }
.login-logo { font-size: 22px; font-weight: 750; display: flex; align-items: center; gap: 10px; }
.login-sub { margin: -6px 0 10px; color: var(--text-dim); font-size: 13px; }
.login-card input { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); padding: 11px 12px; border-radius: 9px; }
.login-card button { background: var(--accent); color: #fff; border: none; padding: 11px 12px; border-radius: 9px; font-weight: 650; cursor: pointer; }
.login-card button:hover { background: var(--accent-hover); }
.login-error { color: var(--red); font-size: 13px; min-height: 16px; }
.login-divider { display: flex; align-items: center; gap: 10px; color: var(--text-dim); font-size: 12px; margin: 6px 0; }
.login-divider::before, .login-divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.logo-mark { width: 30px; height: 30px; border-radius: 9px; display: inline-grid; place-items: center; color: #fff; font-size: 15px; font-weight: 800;
  background: linear-gradient(135deg, #4f7cff, #9b5cff); flex: none; }

/* ---------- App shell ---------- */
.app { display: flex; flex-direction: column; height: 100vh; }
.topbar { display: flex; align-items: center; gap: 16px; padding: 10px 20px; border-bottom: 1px solid var(--border); background: var(--panel); }
.topbar__brand { font-weight: 750; font-size: 16px; margin-right: auto; display: flex; align-items: center; gap: 10px; }
.topbar__selectors { display: flex; gap: 12px; }
.selector { display: flex; flex-direction: column; gap: 3px; font-size: 11px; color: var(--text-dim); }
.selector select { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); padding: 6px 8px; border-radius: 8px; min-width: 190px; font-size: 13px; }
.icon-btn { background: transparent; border: 1px solid var(--border); color: var(--text-dim); width: 34px; height: 34px; border-radius: 9px; cursor: pointer; display: grid; place-items: center; }
.icon-btn:hover { color: var(--text); background: var(--panel-2); }

.layout { flex: 1; display: flex; min-height: 0; }
.sidenav { width: 214px; border-right: 1px solid var(--border); background: var(--panel); display: flex; flex-direction: column; padding: 12px; gap: 2px; overflow-y: auto; }
.sidenav__group { font-size: 10.5px; text-transform: uppercase; letter-spacing: .08em; color: var(--text-dim); margin: 14px 10px 6px; font-weight: 650; }
.sidenav__group:first-child { margin-top: 4px; }
.sidenav__item { background: transparent; border: none; color: var(--text-dim); text-align: left; padding: 8px 10px; border-radius: 9px; cursor: pointer;
  font-size: 13.5px; display: flex; align-items: center; gap: 10px; }
.sidenav__item svg { width: 17px; height: 17px; flex: none; opacity: .9; }
.sidenav__item:hover { background: var(--panel-2); color: var(--text); }
.sidenav__item.is-active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.nav-count { margin-left: auto; background: var(--red); color: #fff; font-size: 10.5px; font-weight: 700; border-radius: 999px; padding: 1px 7px; }
.nav-count:empty { display: none; }

.content { flex: 1; overflow-y: auto; padding: 24px 28px 48px; }

/* ---------- Common ---------- */
.btn { background: var(--accent); color: #fff; border: 1px solid transparent; padding: 8px 14px; border-radius: 9px; font-size: 13px; font-weight: 600; cursor: pointer;
  display: inline-flex; align-items: center; gap: 6px; text-decoration: none; }
.btn:hover { background: var(--accent-hover); }
.btn:disabled, .btn[aria-disabled="true"] { opacity: .45; cursor: not-allowed; }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text-dim); }
.btn-ghost:hover { background: var(--panel-2); color: var(--text); }
.btn-danger { background: var(--red); }
.btn-danger:hover { background: #ff6b7a; }
.btn-success { background: var(--green); }
.btn-sm { padding: 5px 10px; font-size: 12px; }

.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.panel-head h2 { margin: 0; font-size: 20px; font-weight: 700; letter-spacing: -.01em; }
.panel-sub { color: var(--text-dim); margin: -8px 0 18px; font-size: 13px; }
.breadcrumb { color: var(--text-dim); font-size: 13px; margin-bottom: 8px; }
.breadcrumb a { color: var(--accent); cursor: pointer; text-decoration: none; }

.card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; margin-bottom: 16px; overflow-x: auto; }
.card h3 { margin: 0 0 10px; font-size: 15px; }
.card-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.toolbar { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.toolbar select, .toolbar input, .content > .panel-head select { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); padding: 7px 9px; border-radius: 8px; font-size: 13px; }

table { width: 100%; border-collapse: separate; border-spacing: 0; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
th, td { text-align: left; padding: 10px 12px; font-size: 13px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { color: var(--text-dim); font-weight: 600; background: var(--panel-2); font-size: 12px; }
tr:last-child td { border-bottom: none; }
tr.clickable { cursor: pointer; }
tr.clickable:hover td { background: var(--panel-2); }
.row-actions { white-space: nowrap; text-align: right; }
.num { text-align: right; font-variant-numeric: tabular-nums; }

.badge { padding: 3px 8px; border-radius: 999px; font-size: 11px; font-weight: 650; display: inline-block; white-space: nowrap; }
.badge-active { background: rgba(53, 201, 119, .15); color: var(--green); }
.badge-paused { background: rgba(230, 178, 61, .16); color: var(--yellow); }
.badge-other { background: rgba(139, 146, 163, .16); color: var(--text-dim); }
.badge-danger { background: rgba(239, 84, 100, .15); color: var(--red); }
.badge-info { background: var(--accent-soft); color: var(--accent); }

.empty-state { color: var(--text-dim); text-align: center; padding: 56px 20px; }
.error-banner { background: rgba(239, 84, 100, .1); border: 1px solid rgba(239, 84, 100, .4); color: var(--red); padding: 10px 14px; border-radius: 9px; margin-bottom: 16px; font-size: 13px; }
.info-banner { background: var(--accent-soft); border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent); color: var(--text); padding: 12px 14px; border-radius: 9px; margin-bottom: 16px; font-size: 13px; }
.warn-banner { background: rgba(230, 178, 61, .12); border: 1px solid rgba(230, 178, 61, .45); color: var(--text); padding: 12px 14px; border-radius: 9px; margin-bottom: 16px; font-size: 13px; }

/* ---------- Switch ---------- */
.switch { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; font-size: 13px; }
.switch input { appearance: none; width: 38px; height: 22px; border-radius: 999px; background: var(--panel-3); border: 1px solid var(--border); position: relative; cursor: pointer; margin: 0; transition: background .15s; }
.switch input::after { content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%; background: #fff; transition: transform .15s; }
.switch input:checked { background: var(--green); }
.switch input:checked::after { transform: translateX(16px); }

/* ---------- Boost / cards ---------- */
.post-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.post-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; }
.post-card img { width: 100%; height: 130px; object-fit: cover; background: var(--panel-2); }
.post-card__body { padding: 10px 12px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.post-card__msg { font-size: 13px; color: var(--text); flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.post-card__date { font-size: 11px; color: var(--text-dim); }
.post-card.is-picked { outline: 2px solid var(--accent); }

/* ---------- Modal ---------- */
.modal-backdrop { position: fixed; inset: 0; background: rgba(5, 8, 15, .6); backdrop-filter: blur(2px); display: none; align-items: center; justify-content: center; z-index: 50; padding: 16px; }
.modal-backdrop.is-open { display: flex; }
.modal { background: var(--panel); border: 1px solid var(--border); border-radius: 16px; width: 520px; max-width: 100%; max-height: calc(100vh - 32px); overflow-y: auto; padding: 22px; box-shadow: var(--shadow); }
.modal.is-wide { width: 860px; }
.modal h3 { margin-top: 0; }
.form-row { display: flex; flex-direction: column; gap: 5px; margin-bottom: 12px; }
.form-row.split { flex-direction: row; gap: 12px; }
.form-row.split > * { flex: 1; display: flex; flex-direction: column; gap: 5px; }
.form-row label { font-size: 12px; color: var(--text-dim); font-weight: 550; }
.form-row input, .form-row select, .form-row textarea { background: var(--panel-2); border: 1px solid var(--border); color: var(--text); padding: 9px 10px; border-radius: 8px; font-size: 13px; width: 100%; }
.form-row textarea { resize: vertical; min-height: 60px; }
.form-hint { font-size: 11.5px; color: var(--text-dim); }
.modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 16px; flex-wrap: wrap; }
.checkbox-row { display: flex; align-items: center; gap: 8px; font-size: 13px; margin-bottom: 12px; }
.checkbox-row input { width: auto; }
.chip { display: inline-flex; align-items: center; gap: 6px; background: var(--panel-3); border: 1px solid var(--border); border-radius: 999px; padding: 3px 4px 3px 10px; font-size: 12px; margin: 0 6px 6px 0; }
.chip button { background: transparent; border: none; color: var(--text-dim); cursor: pointer; font-size: 14px; line-height: 1; padding: 0 4px; }
.chip input { width: 54px; background: var(--panel); border: 1px solid var(--border); color: var(--text); border-radius: 6px; padding: 2px 4px; font-size: 12px; }
.search-results { border: 1px solid var(--border); border-radius: 8px; margin-top: 4px; max-height: 220px; overflow-y: auto; }
.search-results:empty { display: none; }
.search-results button { display: flex; width: 100%; justify-content: space-between; gap: 8px; background: transparent; border: none; border-bottom: 1px solid var(--border); color: var(--text); padding: 8px 10px; cursor: pointer; text-align: left; font-size: 13px; }
.search-results button:hover { background: var(--panel-2); }

/* ---------- KPIs / insights ---------- */
.insights-summary, .kpi-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; margin-bottom: 20px; }
.stat-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; min-width: 0; }
.stat-card__label { font-size: 11px; color: var(--text-dim); text-transform: uppercase; letter-spacing: .05em; font-weight: 600; }
.stat-card__value { font-size: 22px; font-weight: 750; margin-top: 4px; letter-spacing: -.01em; }
.stat-card__sub { font-size: 12px; color: var(--text-dim); margin-top: 2px; }
.chart { width: 100%; height: auto; display: block; }
.chart .bar { fill: var(--accent); opacity: .85; }
.chart .bar:hover { opacity: 1; }
.chart .axis { fill: var(--text-dim); font-size: 13px; }
.chart .grid { stroke: var(--border); stroke-width: 1; }
.chart .line { fill: none; stroke: var(--green); stroke-width: 2; }
.meter { height: 8px; background: var(--panel-3); border-radius: 999px; overflow: hidden; }
.meter > span { display: block; height: 100%; background: var(--accent); border-radius: 999px; }
.rank-ABOVE_AVERAGE { color: var(--green); }
.rank-AVERAGE { color: var(--text); }
.rank-BELOW_AVERAGE_10, .rank-BELOW_AVERAGE_20, .rank-BELOW_AVERAGE_35 { color: var(--red); }

/* ---------- Toast ---------- */
.toast { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%) translateY(20px); background: var(--panel-3); border: 1px solid var(--border); color: var(--text);
  padding: 10px 16px; border-radius: 9px; font-size: 13px; opacity: 0; pointer-events: none; transition: all .2s ease; z-index: 100; box-shadow: var(--shadow); max-width: calc(100vw - 32px); }
.toast.is-visible { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.is-error { border-color: var(--red); color: var(--red); }

/* ---------- Phones ---------- */
@media (max-width: 820px) {
  .topbar { flex-wrap: wrap; padding: 10px 16px; gap: 10px; }
  .topbar__selectors { order: 3; width: 100%; }
  .selector { flex: 1; }
  .selector select { min-width: 0; width: 100%; }
  .layout { flex-direction: column; }
  .sidenav { width: auto; flex-direction: row; border-right: none; border-bottom: 1px solid var(--border); overflow-x: auto; padding: 8px 12px; }
  .sidenav__group { display: none; }
  .sidenav__item { white-space: nowrap; }
  .content { padding: 16px; }
  table { display: block; overflow-x: auto; white-space: nowrap; }
  .form-row.split { flex-direction: column; }
}