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

:root {
  --bg: #0f1117;
  --bg-card: #1a1d27;
  --bg-hover: #22263a;
  --border: #2a2d3e;
  --text: #e2e8f0;
  --text-muted: #64748b;
  --text-dim: #94a3b8;
  --accent: #6366f1;
  --accent-hover: #4f52c9;
  --green: #10b981;
  --red: #ef4444;
  --yellow: #f59e0b;
  --blue: #3b82f6;
  --radius: 10px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

/* ── Header ──────────────────────────────────────────────────────── */
.app-header {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 0 1.5rem;
  height: 52px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}
.app-header__brand {
  font-weight: 700;
  font-size: 16px;
  color: var(--accent);
  white-space: nowrap;
}
.app-nav { display: flex; gap: .5rem; }
.app-nav__link {
  padding: 6px 14px;
  border-radius: 6px;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 13px;
  transition: background .15s, color .15s;
}
.app-nav__link:hover, .app-nav__link.active {
  background: var(--bg-hover);
  color: var(--text);
}
.app-header__actions { margin-left: auto; }

/* ── Main ────────────────────────────────────────────────────────── */
.app-main { padding: 1.5rem; max-width: 1400px; margin: 0 auto; }

/* ── Page header ─────────────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}
.page-title {
  font-size: 20px;
  font-weight: 700;
  flex: 1;
}
.page-title__sub {
  font-size: 14px;
  font-weight: 400;
  color: var(--text-muted);
  margin-left: .5rem;
}
.page-header__actions { display: flex; gap: .5rem; }
.section-title {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted);
  margin-bottom: .75rem;
}

/* ── Buttons ─────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: 7px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: background .15s, opacity .15s;
  white-space: nowrap;
}
.btn:disabled { opacity: .4; cursor: not-allowed; }
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover:not(:disabled) { background: var(--accent-hover); }
.btn--ghost { background: var(--bg-hover); color: var(--text-dim); border: 1px solid var(--border); }
.btn--ghost:hover { color: var(--text); }
.btn--danger { background: rgba(239,68,68,.15); color: var(--red); border: 1px solid rgba(239,68,68,.3); }
.btn--danger:hover { background: rgba(239,68,68,.25); }
.btn--sm { padding: 4px 10px; font-size: 12px; }

/* ── Toolbar ─────────────────────────────────────────────────────── */
.toolbar {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: .75rem;
  flex-wrap: wrap;
}
.toolbar__count { color: var(--text-muted); font-size: 12px; }

/* ── Search input ────────────────────────────────────────────────── */
.search-input {
  padding: 7px 12px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  font-size: 13px;
  min-width: 260px;
  outline: none;
}
.search-input:focus { border-color: var(--accent); }

/* ── Data table ──────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.data-table th {
  background: var(--bg-card);
  color: var(--text-muted);
  font-weight: 600;
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.data-table td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: var(--bg-hover); }
.data-table tbody tr.is-monitored { opacity: .5; }

.col-check { width: 40px; }
.mono { font-family: monospace; }

/* ── Product thumbnail ───────────────────────────────────────────── */
.product-thumb {
  width: 44px;
  height: 44px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--border);
  display: block;
}
.product-thumb--empty {
  background: var(--bg-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 18px;
}

/* ── Badges ──────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}
.badge--green { background: rgba(16,185,129,.15); color: var(--green); }
.badge--gray  { background: rgba(100,116,139,.15); color: var(--text-muted); }
.badge--blue  { background: rgba(59,130,246,.15); color: var(--blue); }

/* ── Empty state ─────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 64px 24px;
  color: var(--text-muted);
}
.empty-state--sm { padding: 32px 24px; }
.empty-state__icon { font-size: 2.5rem; margin-bottom: 12px; }
.empty-state__title { font-size: 15px; font-weight: 600; color: var(--text-dim); margin-bottom: 6px; }
.empty-state__hint  { font-size: 13px; }

/* ── Monitored grid ──────────────────────────────────────────────── */
.monitored-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1rem;
}
.monitored-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  gap: 1rem;
  padding: 1rem;
  transition: border-color .15s;
}
.monitored-card:hover { border-color: var(--accent); }
.monitored-card__photo img {
  width: 72px;
  height: 72px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.monitored-card__no-photo {
  width: 72px;
  height: 72px;
  background: var(--bg-hover);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 22px;
  flex-shrink: 0;
}
.monitored-card__info { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: .4rem; }
.monitored-card__article { font-size: 12px; color: var(--text-muted); }
.monitored-card__name {
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.monitored-card__meta { font-size: 12px; color: var(--text-muted); }
.monitored-card__actions { display: flex; gap: .4rem; flex-wrap: wrap; margin-top: auto; padding-top: .25rem; }

/* ── Campaign picker (searchable dropdown) ───────────────────────── */
.campaign-picker {
  position: relative;
  margin: 6px 0;
}
.campaign-picker__selected {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 12px;
  cursor: pointer;
  user-select: none;
  min-height: 28px;
}
.campaign-picker__selected:hover { border-color: var(--accent); }
.campaign-picker__sel-text { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.campaign-picker__placeholder { flex: 1; color: var(--text-muted); font-style: italic; }
.campaign-picker__caret { font-size: 10px; color: var(--text-muted); flex-shrink: 0; }
.campaign-picker__menu {
  position: absolute;
  top: calc(100% + 3px);
  left: 0; right: 0;
  background: #1a1d27;
  border: 1px solid var(--border);
  border-radius: 8px;
  z-index: 200;
  box-shadow: 0 8px 24px rgba(0,0,0,.5);
  overflow: hidden;
}
.campaign-picker__search {
  width: 100%;
  box-sizing: border-box;
  padding: 7px 10px;
  border: none;
  border-bottom: 1px solid var(--border);
  background: #1a1d27;
  color: var(--text);
  font-size: 12px;
  outline: none;
}
.campaign-picker__list {
  list-style: none;
  margin: 0; padding: 4px 0;
  max-height: 200px;
  overflow-y: auto;
}
.campaign-picker__item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  font-size: 12px;
  color: var(--text);
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.campaign-picker__item:hover { background: rgba(99,102,241,.15); }
.campaign-picker__item.selected { color: var(--accent); font-weight: 600; }
.campaign-picker__match-dot {
  display: inline-block;
  width: 14px;
  color: #f59e0b;
  font-size: 10px;
  flex-shrink: 0;
}
.campaign-picker__saving { font-size: 11px; color: var(--text-muted); padding: 2px 0; }
.campaign-picker--saved .campaign-picker__selected { border-color: #10b981; }

/* keep old select class for any fallback */
.campaign-form { display: flex; }
.campaign-select {
  flex: 1; padding: 5px 8px; border-radius: 6px;
  border: 1px solid var(--border); background: var(--bg);
  color: var(--text); font-size: 12px; cursor: pointer; outline: none;
}
.campaign-select:focus { border-color: var(--accent); }

/* ── Modal ───────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.7);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  z-index: 1000;
  padding: 40px 16px;
  overflow-y: auto;
}
.modal-overlay[hidden] { display: none; }
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  width: 100%;
  max-width: 1100px;
  box-shadow: var(--shadow);
  position: relative;
}
.modal__close {
  position: absolute;
  top: 12px;
  right: 14px;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 18px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
}
.modal__close:hover { color: var(--text); background: var(--bg-hover); }
.modal__body { padding: 1.5rem; }

/* ── Modal inner layout ──────────────────────────────────────────── */
.modal-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding-right: 2rem;
}
.modal-header__photo {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.modal-header__title { font-size: 16px; font-weight: 700; }
.modal-header__article { font-size: 12px; color: var(--text-muted); font-family: monospace; margin-top: 2px; }

/* Period selector */
.period-tabs { display: flex; gap: .35rem; margin-bottom: 1rem; }
.period-tab {
  padding: 4px 12px;
  border-radius: 5px;
  font-size: 12px;
  cursor: pointer;
  border: 1px solid var(--border);
  background: none;
  color: var(--text-dim);
  transition: background .12s, color .12s;
}
.period-tab.active, .period-tab:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

/* View toggle */
.view-toggle { display: flex; gap: .35rem; margin-bottom: 1rem; margin-left: auto; }
.view-btn {
  padding: 4px 12px;
  border-radius: 5px;
  font-size: 12px;
  cursor: pointer;
  border: 1px solid var(--border);
  background: none;
  color: var(--text-dim);
  transition: background .12s;
}
.view-btn.active { background: var(--bg-hover); color: var(--text); }

.modal-controls {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

/* Stats table in modal */
.stats-table-wrap { overflow-x: auto; margin-bottom: 1.5rem; }
.stats-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  white-space: nowrap;
}
.stats-table th {
  background: var(--bg);
  color: var(--text-muted);
  font-weight: 600;
  padding: 8px 10px;
  text-align: right;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
}
.stats-table th:first-child { text-align: left; }
.stats-table td {
  padding: 7px 10px;
  border-bottom: 1px solid var(--border);
  text-align: right;
  color: var(--text-dim);
}
.stats-table td:first-child { text-align: left; color: var(--text); font-family: monospace; font-size: 11px; }
.stats-table tbody tr:hover { background: var(--bg-hover); }
.stats-table .conv { color: var(--green); font-weight: 600; }
.stats-table .drr     { color: var(--yellow); }
.stats-table .adv-col { color: #a78bfa; }
.cell-sub  { font-size: 11px; color: var(--text-muted); margin-top: 1px; }
.delta     { font-size: 10px; font-weight: 600; margin-left: 4px; vertical-align: middle; }
.delta--good { color: #10b981; }
.delta--bad  { color: #ef4444; }
.stats-table .photo-changed { color: var(--yellow); }
.null-val { color: var(--text-muted); }

/* Chart wrapper */
.chart-block { margin-bottom: 1.5rem; }
.chart-title { font-size: 12px; font-weight: 600; color: var(--text-muted); margin-bottom: .5rem; text-transform: uppercase; letter-spacing: .05em; }
.chart-canvas-wrap { background: var(--bg); border-radius: 8px; padding: 1rem; border: 1px solid var(--border); }
canvas.chart-canvas { max-height: 220px; }

/* Group section separator */
.group-separator {
  border-top: 1px solid var(--border);
  margin: 1.5rem 0;
  padding-top: 1rem;
}
.group-item { margin-bottom: 2rem; }
.group-item__header {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: .75rem;
}
.group-item__photo {
  width: 36px;
  height: 36px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--border);
}
.group-item__name { font-weight: 600; font-size: 13px; }
.group-item__article { font-size: 11px; color: var(--text-muted); font-family: monospace; }

/* Loading */
.loading-center {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  color: var(--text-muted);
  font-size: 13px;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }