/* ============================================================
   RR Stats — Telegram Mini App
   Естетика: темна, ігрова, з жовтими акцентами
   ============================================================ */

:root {
  /* Дефолтні кольори, можуть бути перезаписані з Telegram theme */
  --bg: #0f0f12;
  --bg-elevated: #17171c;
  --bg-elevated-2: #1f1f26;
  --border: #2a2a32;
  --text: #ececf0;
  --text-dim: #8a8a96;
  --hint: #6a6a76;
  --accent: #ffd24a;
  --accent-dim: rgba(255, 210, 74, 0.15);
  --green: #7ec97e;
  --red: #e85c47;
  --blue: #5da9ff;

  --font-display: 'JetBrains Mono', ui-monospace, monospace;
  --font-body: 'Inter', -apple-system, system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: contain;
}

body {
  min-height: 100vh;
  min-height: 100dvh;
  padding-bottom: 50px;
}

.hidden { display: none !important; }

/* ============================================================
   HEADER
   ============================================================ */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 10px;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
  border-bottom: 1px solid var(--border);
}

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

.title-mark {
  color: var(--accent);
  font-size: 11px;
  animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.app-header h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 2px;
  color: var(--text);
}

.icon-btn {
  width: 32px;
  height: 32px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 16px;
  cursor: pointer;
  transition: all 0.15s;
}
.icon-btn:hover, .icon-btn:active {
  background: var(--accent-dim);
  border-color: var(--accent);
  color: var(--accent);
}
.icon-btn.spinning { animation: spin 0.8s linear infinite; }

@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================
   TABS
   ============================================================ */
.tab-bar {
  display: flex;
  gap: 4px;
  padding: 10px 16px;
  overflow-x: auto;
  scrollbar-width: none;
}
.tab-bar::-webkit-scrollbar { display: none; }

.tab {
  flex-shrink: 0;
  padding: 8px 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-dim);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  letter-spacing: 0.2px;
}
.tab:active { transform: scale(0.97); }
.tab.active {
  background: var(--accent);
  color: #1a1a1f;
  border-color: var(--accent);
  font-weight: 600;
}

.range-bar {
  display: flex;
  gap: 4px;
  padding: 0 16px 12px;
}
.range {
  flex: 1;
  padding: 6px 0;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-dim);
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  letter-spacing: 1px;
  transition: all 0.15s;
}
.range.active {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

/* ============================================================
   DEPARTMENT SELECTOR
   ============================================================ */
.dept-selector-wrap {
  padding: 0 16px 12px;
}

.dept-selector {
  width: 100%;
  height: 38px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  padding: 0 12px;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path fill='%23ffd24a' d='M6 8L2 4h8z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}
.dept-selector:focus {
  outline: none;
  border-color: var(--accent);
}
.dept-selector option {
  background: var(--bg-elevated);
  color: var(--text);
}

/* ============================================================
   STATES
   ============================================================ */
.loading, .error, .empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--text-dim);
}
.loading { font-family: var(--font-display); letter-spacing: 1.5px; font-size: 12px; }
.error { color: var(--red); font-family: var(--font-display); font-size: 12px; }
.empty-mark {
  font-size: 48px;
  color: var(--border);
  margin-bottom: 12px;
}
.empty .hint { font-size: 12px; color: var(--hint); margin-top: 6px; }

/* ============================================================
   KPI GRID
   ============================================================ */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  padding: 0 16px 16px;
}

.kpi {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
  position: relative;
  overflow: hidden;
}
.kpi::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--accent);
  opacity: 0.6;
}
.kpi-label {
  font-size: 10px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
  font-family: var(--font-display);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.kpi-value {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.5px;
}
.kpi-delta {
  font-family: var(--font-display);
  font-size: 11px;
  margin-top: 4px;
  letter-spacing: 0.3px;
}
.kpi-delta.up { color: var(--green); }
.kpi-delta.down { color: var(--red); }
.kpi-delta.flat { color: var(--text-dim); }

/* ============================================================
   CHARTS
   ============================================================ */
.charts {
  padding: 0 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.chart-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 12px 8px;
}

.chart-card h3 {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 10px;
  padding-left: 4px;
}

.chart-canvas-wrap {
  position: relative;
  height: 260px;
}

/* ============================================================
   FOOTER
   ============================================================ */
.app-footer {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  padding: 10px 16px;
  background: var(--bg);
  border-top: 1px solid var(--border);
  font-family: var(--font-display);
  font-size: 10px;
  color: var(--hint);
  letter-spacing: 1px;
  text-align: center;
}