/* =============================================================
   AI SHEETS  (Modernist)
   Bottom sheets for the AI Macro Advisor and AI Program Generator.
   JS toggles inline display/transform on the panel + backdrop, so the
   initial `display:none; transform:translateY(100%)` stay inline in the
   markup; everything else lives here.
   ============================================================= */

.ai-sheet-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1050;
  display: block;
  background: rgba(0, 0, 0, 0.6);
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
}

.ai-sheet {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1060;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 560px;
  max-height: 88vh;
  margin: 0 auto;
  overflow: hidden;
  background: var(--pod-bg);
  border: 1px solid var(--border-default);
  border-bottom: 0;
  border-radius: 24px 24px 0 0;
  box-shadow: 0 -16px 40px rgba(0, 0, 0, 0.5), var(--pod-bevel);
  transition: transform 0.32s cubic-bezier(0.32, 0.72, 0, 1);
}

.ai-sheet-head {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 14px 12px 16px;
  border-bottom: 1px solid var(--border-header);
}
.ai-sheet-title { display: flex; align-items: center; gap: 12px; min-width: 0; }
.ai-sheet-badge {
  width: 40px;
  height: 40px;
  flex: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--fill-avatar);
  color: #eafaf1;
}
.ai-sheet-badge .ui-icon { width: 18px; height: 18px; }
.ai-sheet-name { font-family: var(--font-display); font-size: 20px; line-height: 1.1; text-transform: uppercase; letter-spacing: 0.02em; color: var(--text-primary); }
.ai-sheet-status { font-family: var(--font-label); font-size: 12px; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--mx-faint); margin-top: 2px; }

.ai-sheet-body {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 14px 16px 28px;
}
.ai-sheet-body .pod { margin-bottom: 0; }

/* ── States ─────────────────────────────────────────────────── */
.ai-loading { display: flex; align-items: center; gap: 12px; padding: 24px 0; font-size: 14px; color: var(--text-tertiary); }
.ai-spinner {
  width: 18px;
  height: 18px;
  flex: none;
  border: 2px solid var(--border-chip);
  border-top-color: var(--green-70);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
.ai-error {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 16px;
  border-radius: var(--radius-pod);
  border: 1px solid var(--border-alert);
  background: var(--danger-bg);
  font-size: 14px;
  line-height: 1.45;
  color: var(--danger-text-mobile);
}
.ai-error .ui-icon { width: 18px; height: 18px; flex: none; margin-top: 1px; }

/* ── Macro advisor ──────────────────────────────────────────── */
.ai-advice .mx-kicker { display: flex; align-items: center; gap: 6px; color: var(--green-90); }
.ai-advice .mx-kicker .ui-icon { width: 15px; height: 15px; }
.ai-row { align-items: center; padding: 10px 0; }
.ai-row-vals { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-size: 18px; font-variant-numeric: tabular-nums; }
.ai-cur { color: var(--text-tertiary); }
.ai-arrow { color: var(--mx-faint); font-family: var(--font-label); }
.ai-up { color: var(--green-90); }
.ai-down { color: var(--danger-text-mobile); }
.ai-same { color: var(--text-primary); }

/* ── Program generator ──────────────────────────────────────── */
.ai-form { display: flex; flex-direction: column; gap: 14px; }
.ai-eq { display: flex; flex-wrap: wrap; gap: 8px; }
.pag-eq-pill {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 44px;
  margin: 0;
  padding: 0 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-chip);
  background: var(--pod-bg-alt);
  box-shadow: none;
  color: var(--text-tertiary);
  font-family: var(--font-label);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
}
.pag-eq-pill .ui-icon { width: 16px; height: 16px; }
.pag-eq-pill.active { background: var(--fill-btn-primary-mobile); border-color: transparent; color: var(--label-on-green); }
.ai-submit.is-busy { animation: pag-pulse 1.2s ease-in-out infinite; }
@keyframes pag-pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.6; } }
@media (prefers-reduced-motion: reduce) {
  .ai-submit.is-busy { animation: none; opacity: 0.7; }
  .ai-sheet { transition: none; }
}
.ai-day { align-items: center; }
.ai-note-flat { border-top: 0; padding-top: 0; }

/* ── Workout story modal actions ─────────────────────────────── */
.story-actions { display: flex; align-items: center; gap: 10px; }
.story-save { flex: 1.4; width: auto; padding: 0 9px 0 20px; font-size: 16px; }
.story-share { flex: 1; }
.story-caption { text-align: center; color: rgba(255, 255, 255, 0.5); font-size: 12.5px; margin: 14px 0 0; }