/* X-Health Tools Section — Calculator + AI Professor (2026-05-25) */

#health-tools-section { padding: 80px 0; position: relative; z-index: 1; }
#health-tools-section .section-header { margin-bottom: 32px; }
.ht-badge { display: inline-flex; align-items: center; gap: 8px; padding: 5px 12px; background: rgba(124,58,237,0.15); border: 1px solid rgba(124,58,237,0.35); border-radius: 100px; font-family: var(--font-display); font-size: 0.72rem; color: #a78bfa; letter-spacing: 1px; text-transform: uppercase; }
.ht-title { font-family: var(--font-heading); font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700; margin: 12px 0 8px; }
.ht-subtitle { color: var(--text-sec); font-size: 1rem; max-width: 720px; margin: 0 auto; }

.ht-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 24px; align-items: start; }
@media (max-width: 920px) { .ht-grid { grid-template-columns: 1fr; gap: 20px; } }

/* ===== Cards ===== */
.ht-card {
  background: var(--surface);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
}
.ht-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--accent-gradient, linear-gradient(90deg, #10b981, #7c3aed)); }
.ht-card__title { font-family: var(--font-heading); font-size: 1.15rem; font-weight: 700; display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.ht-card__title svg, .ht-card__title .ico { width: 22px; height: 22px; flex-shrink: 0; color: var(--accent, #10b981); }
.ht-card__sub { color: var(--text-sec); font-size: 0.88rem; margin-bottom: 18px; }

/* ===== Calculator ===== */
.ht-calc-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; padding: 4px; background: rgba(16,24,40,0.45); border-radius: var(--r-md); border: 1px solid var(--border); }
.ht-calc-tab { flex: 1 1 auto; padding: 9px 10px; border: 0; background: transparent; color: var(--text-sec); font-family: var(--font-body); font-size: 0.78rem; font-weight: 600; border-radius: var(--r-sm); cursor: pointer; transition: all .15s; min-width: max-content; }
.ht-calc-tab:hover { color: var(--text); }
.ht-calc-tab[aria-selected="true"] { background: linear-gradient(135deg, #10b981, #059669); color: #fff; box-shadow: 0 2px 10px rgba(16,185,129,0.35); }

.ht-form { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.ht-form .ht-row--full { grid-column: 1 / -1; }
.ht-field { display: flex; flex-direction: column; gap: 5px; }
.ht-label { font-size: 0.74rem; color: var(--text-sec); font-weight: 600; letter-spacing: 0.3px; }
.ht-input, .ht-select {
  width: 100%; padding: 10px 12px;
  background: rgba(16,24,40,0.55); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--r-sm);
  font-size: 0.95rem; font-family: var(--font-body);
  transition: border-color .15s, box-shadow .15s;
}
.ht-input:focus, .ht-select:focus { outline: 0; border-color: rgba(16,185,129,0.6); box-shadow: 0 0 0 3px rgba(16,185,129,0.12); }

.ht-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 18px; border: 0; border-radius: var(--r-sm); background: linear-gradient(135deg, #10b981, #059669); color: #fff; font-weight: 700; font-size: 0.92rem; cursor: pointer; transition: filter .15s, transform .1s; }
.ht-btn:hover { filter: brightness(1.08); }
.ht-btn:active { transform: translateY(1px); }
.ht-btn[disabled] { opacity: 0.65; cursor: wait; }
.ht-btn--purple { background: linear-gradient(135deg, #7c3aed, #6d28d9); }
.ht-btn--full { width: 100%; }
.ht-btn--lg { padding: 13px 20px; font-size: 1rem; }

/* ===== Calculator Results ===== */
.ht-result { margin-top: 16px; padding: 16px; background: linear-gradient(135deg, rgba(16,185,129,0.08), rgba(124,58,237,0.06)); border: 1px solid rgba(16,185,129,0.25); border-radius: var(--r-md); display: none; }
.ht-result.is-visible { display: block; animation: htFadeIn 0.3s ease; }
@keyframes htFadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }
.ht-result__primary { font-family: var(--font-display); font-size: 1.8rem; font-weight: 700; color: #fff; line-height: 1.1; }
.ht-result__label { font-size: 0.78rem; color: var(--text-sec); margin-bottom: 4px; text-transform: uppercase; letter-spacing: 1px; }
.ht-result__zone { display: inline-block; margin-top: 6px; padding: 3px 10px; border-radius: 100px; font-size: 0.75rem; font-weight: 600; background: rgba(16,185,129,0.15); color: #10b981; }
.ht-result__zone--warn { background: rgba(245,158,11,0.15); color: #f59e0b; }
.ht-result__zone--danger { background: rgba(239,68,68,0.15); color: #ef4444; }
.ht-result__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 10px; margin-top: 14px; }
.ht-result__item { padding: 10px 12px; background: rgba(7,11,20,0.4); border: 1px solid var(--border); border-radius: var(--r-sm); }
.ht-result__item-val { font-family: var(--font-display); font-size: 1.05rem; font-weight: 700; color: var(--accent); }
.ht-result__item-lbl { font-size: 0.7rem; color: var(--text-sec); margin-top: 2px; }
.ht-result__tip { margin-top: 12px; padding: 10px 12px; background: rgba(124,58,237,0.08); border-left: 3px solid #7c3aed; border-radius: var(--r-sm); font-size: 0.85rem; color: var(--text-sec); line-height: 1.5; }
.ht-error { color: #ef4444; font-size: 0.85rem; margin-top: 10px; min-height: 16px; }

/* ===== AI Professor ===== */
.ht-textarea {
  width: 100%; min-height: 110px; resize: vertical;
  padding: 12px 14px;
  background: rgba(16,24,40,0.55); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--r-sm);
  font-size: 0.95rem; font-family: var(--font-body); line-height: 1.5;
  transition: border-color .15s, box-shadow .15s;
}
.ht-textarea:focus { outline: 0; border-color: rgba(124,58,237,0.6); box-shadow: 0 0 0 3px rgba(124,58,237,0.12); }
.ht-hint { font-size: 0.78rem; color: var(--text-dim); margin: 6px 2px 12px; }
.ht-chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 10px 0 14px; }
.ht-chip { padding: 5px 10px; border: 1px solid var(--border); border-radius: 100px; background: rgba(16,24,40,0.4); color: var(--text-sec); font-size: 0.78rem; cursor: pointer; transition: all .15s; }
.ht-chip:hover { color: var(--text); border-color: rgba(124,58,237,0.5); background: rgba(124,58,237,0.08); }

.ht-ai-result { margin-top: 18px; padding: 18px; background: rgba(7,11,20,0.55); border: 1px solid rgba(124,58,237,0.25); border-radius: var(--r-md); display: none; }
.ht-ai-result.is-visible { display: block; animation: htFadeIn 0.4s ease; }
.ht-ai-result__head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.ht-ai-result__avatar { width: 38px; height: 38px; border-radius: 50%; background: linear-gradient(135deg, #7c3aed, #4c1d95); display: flex; align-items: center; justify-content: center; font-size: 1.2rem; flex-shrink: 0; }
.ht-ai-result__name { font-family: var(--font-heading); font-weight: 700; }
.ht-ai-result__role { font-size: 0.78rem; color: var(--text-dim); }
.ht-ai-result__body { color: var(--text); font-size: 0.95rem; line-height: 1.65; white-space: pre-wrap; word-wrap: break-word; }
.ht-ai-result__disclaimer { margin-top: 14px; padding: 10px 12px; background: rgba(245,158,11,0.08); border-left: 3px solid #f59e0b; border-radius: var(--r-sm); font-size: 0.82rem; color: var(--text-sec); }
.ht-ai-result__cta { margin-top: 14px; display: flex; gap: 8px; flex-wrap: wrap; }

.ht-loader { display: inline-block; width: 16px; height: 16px; border: 2px solid rgba(255,255,255,0.25); border-top-color: #fff; border-radius: 50%; animation: htSpin 0.7s linear infinite; vertical-align: middle; }
@keyframes htSpin { to { transform: rotate(360deg); } }

/* ===== Stats strip ===== */
.ht-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; margin-top: 28px; }
.ht-stat { padding: 18px 16px; text-align: center; background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-md); }
.ht-stat__val { font-family: var(--font-display); font-size: 1.4rem; font-weight: 700; color: var(--accent); }
.ht-stat__lbl { font-size: 0.78rem; color: var(--text-sec); margin-top: 4px; }