/* ── Light theme (default) ──────────────────────────── */
:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --accent: #1d4ed8;
  --btn-bg: #eff6ff;
  --btn-border: #bfdbfe;
  --btn-text: #1e3a8a;
  --btn-hover: #dbeafe;
  --input-bg: #ffffff;
  --input-border: #cbd5e1;
  --topbar-bg: #ffffff;
  --ok: #dcfce7; --ok-text: #166534;
  --pending: #fef3c7; --pending-text: #92400e;
  --escalated: #fee2e2; --escalated-text: #991b1b;
  --total: #dbeafe; --total-text: #1e3a8a;
  --viber: #ede9fe; --viber-text: #5b21b6;
  --telegram: #e0f2fe; --telegram-text: #0369a1;
  --row-hover: #f8fafc;
  --shadow: 0 1px 3px rgba(0,0,0,.06);
}

/* ── Dark theme ────────────────────────────────────── */
[data-theme="dark"] {
  --bg: #0f172a;
  --panel: #1e293b;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --border: #334155;
  --accent: #60a5fa;
  --btn-bg: #1e293b;
  --btn-border: #475569;
  --btn-text: #93c5fd;
  --btn-hover: #334155;
  --input-bg: #0f172a;
  --input-border: #475569;
  --topbar-bg: #020617;
  --ok: #064e3b; --ok-text: #6ee7b7;
  --pending: #78350f; --pending-text: #fde68a;
  --escalated: #7f1d1d; --escalated-text: #fca5a5;
  --total: #1e3a5f; --total-text: #93c5fd;
  --viber: #2e1065; --viber-text: #c4b5fd;
  --telegram: #0c4a6e; --telegram-text: #7dd3fc;
  --row-hover: #1a2436;
  --shadow: 0 1px 3px rgba(0,0,0,.3);
}

/* ── Reset ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  transition: background .2s, color .2s;
}

.hidden { display: none !important; }

/* ── Auth Screen ───────────────────────────────────── */
.auth-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg);
}
.auth-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 28px;
  width: 340px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.auth-card h2 { margin: 0 0 4px; font-size: 20px; text-align: center; }
.error-msg { color: #ef4444; font-size: 13px; min-height: 18px; margin: 0; }

/* ── Top bar ───────────────────────────────────────── */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  border-bottom: 1px solid var(--border);
  background: var(--topbar-bg);
  position: sticky; top: 0; z-index: 10;
}
.topbar h1 { margin: 0; font-size: 20px; }
.topbar-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.small { font-size: 12px; }

/* ── Buttons ───────────────────────────────────────── */
button {
  border: 1px solid var(--btn-border);
  background: var(--btn-bg);
  color: var(--btn-text);
  border-radius: 10px;
  padding: 8px 14px;
  cursor: pointer;
  font-weight: 600;
  font-size: 13px;
  transition: background .15s;
}
button:hover { background: var(--btn-hover); }
button:disabled { cursor: not-allowed; opacity: .55; }

/* ── Container ─────────────────────────────────────── */
.container { max-width: 1320px; margin: 14px auto; padding: 0 12px 32px; }

/* ── Tabs ──────────────────────────────────────────── */
.tabs { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.tab-btn { border: 1px solid var(--border); background: var(--panel); color: var(--muted); }
.tab-btn.active { border-color: var(--accent); color: var(--accent); font-weight: 700; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ── KPI Grid ──────────────────────────────────────── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0,1fr));
  gap: 10px;
  margin-bottom: 12px;
}
.kpi-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  box-shadow: var(--shadow);
}
.kpi-card h2 { font-size: 12px; margin: 0; font-weight: 600; }
.kpi-card p { margin: 6px 0 0; font-size: 28px; font-weight: 700; }
.kpi-card.total   { background: var(--total);     color: var(--total-text); }
.kpi-card.ok       { background: var(--ok);        color: var(--ok-text); }
.kpi-card.pending  { background: var(--pending);   color: var(--pending-text); }
.kpi-card.escalated{ background: var(--escalated); color: var(--escalated-text); }
.kpi-card.channel-viber    { background: var(--viber);    color: var(--viber-text); }
.kpi-card.channel-telegram { background: var(--telegram); color: var(--telegram-text); }

/* ── Panels ────────────────────────────────────────── */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 12px;
  padding: 16px;
  box-shadow: var(--shadow);
}
.panel h2 { margin: 0 0 10px; font-size: 16px; }

/* ── Forms ─────────────────────────────────────────── */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 12px;
}
.span-2 { grid-column: span 2; }
.form-actions { display: flex; justify-content: flex-end; gap: 8px; }

label {
  display: flex;
  flex-direction: column;
  gap: 5px;
  font-size: 13px;
  color: var(--muted);
  font-weight: 500;
}

input, select, textarea {
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text);
  border-radius: 10px;
  padding: 8px 10px;
  width: 100%;
  font: inherit;
  font-size: 14px;
  transition: border-color .15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}
textarea { resize: vertical; }

/* ── Recipient checkboxes ──────────────────────────── */
.recipient-list {
  max-height: 200px;
  overflow-y: auto;
  border: 1px solid var(--input-border);
  border-radius: 10px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.recipient-list label {
  flex-direction: row;
  align-items: center;
  gap: 8px;
  font-weight: 400;
  color: var(--text);
  cursor: pointer;
}
.recipient-list input[type="checkbox"] { width: 16px; height: 16px; }

.inline-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

.message-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px;
  background: color-mix(in srgb, var(--panel) 88%, var(--bg));
}

.message-card textarea {
  min-height: 120px;
}

.emoji-picker-trigger {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text);
  border-radius: 8px;
  padding: 5px 12px;
  font-size: 13px;
  cursor: pointer;
  margin-bottom: 6px;
}

.emoji-picker-trigger:hover {
  background: var(--btn-hover);
}

.ep-popup {
  position: fixed;
  z-index: 9999;
  width: 318px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: 0 8px 30px rgba(0,0,0,.18);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.ep-popup.ep-hidden {
  display: none;
}

.ep-cats {
  display: flex;
  gap: 2px;
  padding: 6px 8px;
  overflow-x: auto;
  border-bottom: 1px solid var(--border);
  scrollbar-width: none;
}

.ep-cats::-webkit-scrollbar { display: none; }

.ep-cat-btn {
  border: none;
  background: transparent;
  font-size: 19px;
  padding: 4px 6px;
  border-radius: 6px;
  cursor: pointer;
  flex-shrink: 0;
  line-height: 1;
}

.ep-cat-btn.active {
  background: var(--btn-hover);
}

.ep-grid {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  gap: 1px;
  padding: 6px;
  height: 210px;
  overflow-y: auto;
}

.ep-emoji-btn {
  border: none;
  background: transparent;
  font-size: 20px;
  padding: 4px 2px;
  border-radius: 6px;
  cursor: pointer;
  text-align: center;
  line-height: 1;
}

.ep-emoji-btn:hover {
  background: var(--btn-hover);
}

.file-picker-card {
  margin-top: 8px;
  gap: 8px;
}

.file-picker-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
}

.file-picker-shell {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--input-border);
  border-radius: 14px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel) 92%, white), var(--input-bg));
  min-height: 58px;
  position: relative;
  overflow: hidden;
}

.file-picker-shell input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.file-picker-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 122px;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--btn-border);
  background: var(--btn-bg);
  color: var(--btn-text);
  font-weight: 700;
}

.file-picker-name {
  color: var(--text);
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Weekday picker ────────────────────────────────── */
.weekday-picker {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 6px;
}
.weekday-item {
  flex-direction: row;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  font-weight: 400;
  color: var(--text);
  border: 1px solid var(--input-border);
  border-radius: 8px;
  padding: 6px 10px;
  font-size: 13px;
  transition: background .15s, border-color .15s;
}
.weekday-item:has(input:checked) {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.weekday-item input[type="checkbox"] { display: none; }

/* ── Danger button ─────────────────────────────────── */
.btn-danger-sm {
  background: var(--escalated);
  color: var(--escalated-text);
  border-color: var(--escalated);
  font-size: 12px;
  padding: 4px 10px;
}
.btn-danger-sm:hover { opacity: .85; }

.action-btns { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }

/* ── Tables ────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { border-bottom: 1px solid var(--border); text-align: left; padding: 9px 10px; font-size: 13px; }
th { color: var(--muted); font-weight: 600; }
tbody tr:hover { background: var(--row-hover); }

.status-chip {
  display: inline-block;
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 600;
}
.chip-ok        { background: var(--ok);        color: var(--ok-text); }
.chip-replied   { background: var(--ok);        color: var(--ok-text); }
.chip-sent      { background: var(--total);     color: var(--total-text); }
.chip-reminder  { background: var(--pending);   color: var(--pending-text); }
.chip-escalated { background: var(--escalated); color: var(--escalated-text); }

/* ── Utility ───────────────────────────────────────── */
.muted { color: var(--muted); }
.hint { margin: 10px 0 0; color: var(--muted); font-size: 12px; }

/* ── Responsive ────────────────────────────────────── */
@media (max-width: 1080px) {
  .kpi-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
}
@media (max-width: 700px) {
  .kpi-grid, .form-grid { grid-template-columns: 1fr; }
  .span-2 { grid-column: span 1; }
  .topbar { flex-direction: column; gap: 8px; }
}