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

:root {
  --bg:           var(--tg-theme-bg-color, #ffffff);
  --text:         var(--tg-theme-text-color, #000000);
  --hint:         var(--tg-theme-hint-color, #999999);
  --link:         var(--tg-theme-link-color, #2481cc);
  --btn-bg:       var(--tg-theme-button-color, #2481cc);
  --btn-text:     var(--tg-theme-button-text-color, #ffffff);
  --secondary-bg: var(--tg-theme-secondary-bg-color, #f1f1f1);
  --border:       rgba(128, 128, 128, 0.25);
  --danger:       #e53935;
  --success:      #43a047;
  --radius:       10px;
  --radius-sm:    6px;
  --font:         -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

html, body {
  height: 100%;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  min-height: 100vh;
  padding-bottom: env(safe-area-inset-bottom, 0);
}

/* ── Tab bar ────────────────────────────────────── */
.tab-bar {
  display: flex;
  background: var(--secondary-bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.tab-btn {
  flex: 1;
  padding: 12px 4px;
  border: none;
  background: transparent;
  color: var(--hint);
  font-size: 13px;
  font-family: var(--font);
  cursor: pointer;
  transition: color 0.15s, border-bottom 0.15s;
  border-bottom: 2px solid transparent;
  font-weight: 500;
}

.tab-btn.active {
  color: var(--btn-bg);
  border-bottom: 2px solid var(--btn-bg);
}

/* ── Tab content ────────────────────────────────── */
.tab-content {
  display: none;
  padding: 16px;
  max-width: 600px;
  margin: 0 auto;
}

.tab-content.active {
  display: block;
}

/* ── Sections ───────────────────────────────────── */
.section {
  background: var(--secondary-bg);
  border-radius: var(--radius);
  padding: 14px 14px 12px;
  margin-bottom: 12px;
}

.section-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--hint);
  margin-bottom: 10px;
}

.danger-title {
  color: var(--danger);
}

/* ── Radio group ────────────────────────────────── */
.radio-group {
  display: flex;
  gap: 16px;
  margin-bottom: 12px;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 14px;
}

.radio-label input[type="radio"] {
  accent-color: var(--btn-bg);
  width: 16px;
  height: 16px;
}

/* ── Chip group (multi-select checkboxes) ───────── */
.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  display: flex;
  align-items: center;
  gap: 5px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 5px 12px;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
  user-select: none;
  white-space: nowrap;
}

.chip input[type="checkbox"] {
  display: none;
}

.chip:has(input:checked) {
  background: var(--btn-bg);
  border-color: var(--btn-bg);
  color: var(--btn-text);
}

.chip--danger:has(input:checked) {
  background: var(--danger);
  border-color: var(--danger);
  color: #fff;
}

/* Fallback for browsers without :has() */
.chip.chip--checked {
  background: var(--btn-bg);
  border-color: var(--btn-bg);
  color: var(--btn-text);
}

/* ── Select ─────────────────────────────────────── */
.select {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: var(--font);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23999' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
  cursor: pointer;
}

.select:focus {
  outline: 2px solid var(--btn-bg);
  outline-offset: 1px;
}

/* ── Field ──────────────────────────────────────── */
.field {
  margin-bottom: 10px;
}

.field-label {
  display: block;
  font-size: 12px;
  color: var(--hint);
  margin-bottom: 6px;
  font-weight: 500;
}

/* ── Range input row ────────────────────────────── */
.range-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.range-sep {
  color: var(--hint);
  flex-shrink: 0;
}

.input {
  flex: 1;
  padding: 10px 12px;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: var(--font);
  width: 0; /* let flex handle it */
}

.input:focus {
  outline: 2px solid var(--btn-bg);
  outline-offset: 1px;
}

.input::placeholder {
  color: var(--hint);
}

/* ── Tag list (selected areas / lines) ──────────── */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--btn-bg);
  color: var(--btn-text);
  border-radius: 20px;
  padding: 3px 10px 3px 12px;
  font-size: 12px;
}

.tag-remove {
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  padding: 0;
  font-size: 14px;
  line-height: 1;
  opacity: 0.8;
}

.tag-remove:hover { opacity: 1; }

/* ── Buttons ─────────────────────────────────────── */
.actions {
  margin-top: 8px;
  padding-bottom: 16px;
}

.btn-primary {
  display: block;
  width: 100%;
  padding: 13px;
  background: var(--btn-bg);
  color: var(--btn-text);
  border: none;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: opacity 0.15s;
}

.btn-primary:active { opacity: 0.8; }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-secondary {
  display: inline-block;
  padding: 8px 14px;
  background: transparent;
  color: var(--btn-bg);
  border: 1px solid var(--btn-bg);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.12s;
  margin-top: 8px;
}

.btn-secondary:active { background: rgba(36, 129, 204, 0.1); }

.btn-danger {
  display: block;
  width: 100%;
  padding: 13px;
  background: transparent;
  color: var(--danger);
  border: 1px solid var(--danger);
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.btn-danger:hover {
  background: var(--danger);
  color: #fff;
}

/* ── Toast ───────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: #333;
  color: #fff;
  padding: 10px 20px;
  border-radius: 20px;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  white-space: nowrap;
  z-index: 100;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── States ─────────────────────────────────────── */
.loading-state,
.empty-state {
  text-align: center;
  padding: 48px 16px;
  color: var(--hint);
}

.empty-state p { margin-bottom: 16px; }
.empty-state .btn-primary { display: inline-block; width: auto; padding: 10px 24px; }

/* ── Detail list (view tab) ─────────────────────── */
.status-badge-row {
  margin-bottom: 12px;
}

.badge {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}

.badge--active {
  background: rgba(67, 160, 71, 0.15);
  color: var(--success);
}

.badge--paused {
  background: rgba(153, 153, 153, 0.15);
  color: var(--hint);
}

.detail-list {
  background: var(--secondary-bg);
  border-radius: var(--radius);
  overflow: hidden;
}

.detail-list dt {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--hint);
  padding: 10px 14px 2px;
}

.detail-list dd {
  font-size: 14px;
  padding: 0 14px 10px;
  border-bottom: 1px solid var(--border);
}

.detail-list dd:last-child { border-bottom: none; }

/* ── Manage tab ─────────────────────────────────── */
.manage-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.manage-status-text {
  font-size: 14px;
}

.manage-row .btn-primary {
  width: auto;
  padding: 9px 18px;
  font-size: 13px;
}