/* แพร AI Trainer — styles.css (mobile-first, เน้นปุ่มใหญ่สำหรับ iPad) */
:root {
  --green: #0b6e4f;
  --green-dark: #085c42;
  --green-light: #e6f4ec;
  --accent: #ff8c42;
  --bg: #f4f6f5;
  --card: #ffffff;
  --text: #1d2421;
  --muted: #6b7671;
  --danger: #c0392b;
  --radius: 14px;
  --shadow: 0 2px 10px rgba(0,0,0,.08);
}
* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html { font-size: 17px; }
body {
  margin: 0; padding: 0 0 96px 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "Noto Sans Thai", "TH Sarabun New", sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.55;
}
.app-header {
  background: linear-gradient(135deg, var(--green), var(--green-dark));
  color: #fff; padding: 18px 16px; position: sticky; top: 0; z-index: 50;
}
.header-inner { display: flex; gap: 12px; align-items: center; max-width: 900px; margin: 0 auto; }
.logo { font-size: 2.2rem; }
.app-header h1 { margin: 0; font-size: 1.35rem; }
.subtitle { margin: 2px 0 0; font-size: .85rem; opacity: .9; }
main { max-width: 900px; margin: 0 auto; padding: 12px 12px 24px; }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fade .25s ease; }
@keyframes fade { from { opacity: 0 } to { opacity: 1 } }
.tab-intro { color: var(--muted); margin: 4px 2px 12px; }

.card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 16px; margin-bottom: 14px;
}
.card h2 { margin: 0 0 10px; font-size: 1.15rem; }
.card h3 { margin: 14px 0 6px; font-size: 1.02rem; color: var(--green-dark); }
.note-card { border-left: 5px solid var(--green); }
.plain-list { margin: 0; padding-left: 20px; }
.plain-list li { margin-bottom: 6px; }
.cue-list { margin: 6px 0; padding-left: 20px; }
.cue-list li { margin-bottom: 5px; }
.mistake { color: var(--danger); }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 12px 20px; font-size: 1.02rem; font-family: inherit;
  border: 2px solid var(--green); background: #fff; color: var(--green-dark);
  border-radius: 12px; cursor: pointer; font-weight: 600;
}
.btn:active { transform: scale(.97); }
.btn.primary { background: var(--green); color: #fff; border-color: var(--green); }
.btn.success { background: #2e7d32; border-color: #2e7d32; color: #fff; }
.btn.big { min-height: 60px; font-size: 1.15rem; flex: 1; }
.btn.icon-btn { min-height: 48px; min-width: 48px; padding: 8px 12px; font-size: 1.3rem; border-radius: 50%; }
.btn:disabled { opacity: .45; }

/* การ์ดท่าออกกำลังกาย */
.ex-card { border: 1px solid #e2e8e5; }
.ex-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 8px; }
.ex-head h3 { margin: 0; font-size: 1.12rem; color: var(--text); }
.ex-meta { color: var(--muted); font-size: .92rem; margin: 4px 0 8px; }
.ex-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.tag { background: var(--green-light); color: var(--green-dark); border-radius: 20px; padding: 4px 12px; font-size: .85rem; }
details.ex-detail { margin-top: 6px; border-top: 1px dashed #dfe5e2; padding-top: 8px; }
details.ex-detail summary { cursor: pointer; font-weight: 600; color: var(--green-dark); min-height: 44px; display: flex; align-items: center; }
.video-wrap { position: relative; padding-bottom: 56.25%; height: 0; margin: 10px 0; border-radius: 10px; overflow: hidden; background: #000; }
.video-wrap iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; }
.ex-actions { display: flex; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.ex-actions .btn { flex: 1; }

/* โปรแกรมรายวัน */
.day-card { border-left: 5px solid var(--accent); }
.day-card.today { border-left-color: var(--green); box-shadow: 0 0 0 3px var(--green-light), var(--shadow); }
.day-head { display: flex; justify-content: space-between; align-items: center; }
.day-badge { background: var(--green); color: #fff; border-radius: 20px; padding: 4px 14px; font-size: .9rem; font-weight: 700; }
.day-list { list-style: none; padding: 0; margin: 10px 0; }
.day-list li { padding: 10px 4px; border-bottom: 1px solid #eef1ef; display: flex; justify-content: space-between; gap: 8px; align-items: center; }
.day-list .sets { color: var(--muted); font-size: .92rem; white-space: nowrap; }

.chip-row { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.chip { border: 2px solid #cfd8d4; background: #fff; border-radius: 20px; padding: 8px 16px; font-size: .95rem; cursor: pointer; min-height: 44px; }
.chip.active { background: var(--green); border-color: var(--green); color: #fff; }

/* ฟอร์ม */
.add-form summary { cursor: pointer; font-weight: 700; color: var(--green-dark); min-height: 48px; display: flex; align-items: center; }
.add-form form { display: grid; gap: 10px; margin-top: 10px; }
.add-form label { display: grid; gap: 4px; font-size: .95rem; }
.add-form input, .add-form select {
  min-height: 50px; font-size: 1rem; padding: 8px 12px; border: 2px solid #cfd8d4;
  border-radius: 10px; font-family: inherit; width: 100%;
}
.bia-row { display: flex; justify-content: space-between; padding: 10px 4px; border-bottom: 1px solid #eef1ef; }
.bia-row .delta-up { color: var(--danger); } .bia-row .delta-down { color: #2e7d32; }
.goal-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 8px; }
.goal-box { background: var(--green-light); border-radius: 10px; padding: 10px 6px; text-align: center; }
.goal-box .g-num { font-size: 1.5rem; font-weight: 800; color: var(--green-dark); }
.goal-box .g-label { font-size: .8rem; color: var(--muted); }
.log-row { padding: 10px 4px; border-bottom: 1px solid #eef1ef; display: flex; justify-content: space-between; }
.empty { color: var(--muted); text-align: center; padding: 16px; }

/* โหมดกล้อง AI */
.coach-overlay {
  position: fixed; inset: 0; z-index: 200; background: #101512; color: #fff;
  display: flex; flex-direction: column;
}
.coach-overlay.hidden, .timer-overlay.hidden { display: none; }
.coach-top { display: flex; align-items: center; gap: 10px; padding: 12px; background: rgba(0,0,0,.5); }
.coach-top .btn.icon-btn { background: rgba(255,255,255,.12); border-color: transparent; color: #fff; }
.coach-title { flex: 1; } .coach-title h2 { margin: 0; font-size: 1.1rem; } .coach-title p { margin: 0; font-size: .85rem; opacity: .75; }
.coach-stage { position: relative; flex: 1; min-height: 0; background: #000; overflow: hidden; }
#coach-video, #coach-canvas { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
#coach-video { transform: scaleX(-1); } /* กระจกเงาให้เหมือนมองตัวเอง */
.coach-status {
  position: absolute; top: 10px; left: 50%; transform: translateX(-50%);
  background: rgba(0,0,0,.65); padding: 8px 16px; border-radius: 20px; font-size: .9rem; max-width: 92%;
  text-align: center;
}
.coach-panel { padding: 12px 14px calc(14px + env(safe-area-inset-bottom)); background: #18211c; }
.coach-stats { display: flex; gap: 10px; margin-bottom: 8px; }
.stat { flex: 1; background: rgba(255,255,255,.08); border-radius: 12px; padding: 8px; text-align: center; }
.stat-num { display: block; font-size: 1.9rem; font-weight: 800; color: #7cf2b8; }
.stat.phase .stat-num { font-size: 1.2rem; color: var(--accent); }
.stat-label { font-size: .82rem; opacity: .7; }
.coach-cue { font-size: 1.08rem; min-height: 3.2em; margin: 6px 0 10px; color: #ffe9c9; }
.coach-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.coach-actions .btn { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.25); color: #fff; }
.coach-actions .btn.primary { background: var(--green); border-color: var(--green); }
.coach-actions .btn.success { background: #2e7d32; border-color: #2e7d32; }
.disclaimer { font-size: .8rem; opacity: .65; margin: 10px 0 0; }

/* ตัวจับเวลายืดเหยียด */
.timer-overlay {
  position: fixed; inset: 0; z-index: 210; background: rgba(10,20,15,.96); color: #fff;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; padding: 24px;
}
.timer-count { font-size: 5rem; font-weight: 800; color: #7cf2b8; }
.timer-cue { font-size: 1.05rem; color: #ffe9c9; text-align: center; max-width: 420px; }

/* แถบเมนูล่าง */
.tabbar {
  position: fixed; bottom: 0; left: 0; right: 0; z-index: 100;
  display: flex; background: #fff; border-top: 1px solid #dfe5e2;
  padding-bottom: env(safe-area-inset-bottom);
  box-shadow: 0 -2px 12px rgba(0,0,0,.08);
}
.tab-btn {
  flex: 1; border: 0; background: none; font-family: inherit; cursor: pointer;
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  padding: 10px 4px 8px; font-size: 1.35rem; color: var(--muted); min-height: 64px;
}
.tab-btn span { font-size: .78rem; }
.tab-btn.active { color: var(--green); font-weight: 700; }

@media (min-width: 700px) {
  html { font-size: 18px; }
  #library-list { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
  #library-list .card { margin-bottom: 0; }
}

/* โปรไฟล์ */
.header-title { flex: 1; }
.profile-picker { display: flex; align-items: center; gap: 6px; font-size: 1.2rem; }
.profile-picker select {
  min-height: 44px; max-width: 132px; font-family: inherit; font-size: .98rem;
  border: 2px solid rgba(255,255,255,.55); border-radius: 10px;
  background: rgba(255,255,255,.16); color: #fff; padding: 4px 8px;
}
.profile-picker option { color: var(--text); }
.profile-row { display: flex; gap: 8px; margin: 8px 0; }
.profile-row input {
  flex: 1; min-width: 0; min-height: 50px; font-size: 1rem; padding: 8px 12px;
  border: 2px solid #cfd8d4; border-radius: 10px; font-family: inherit;
}
.profile-row label { display: grid; gap: 4px; font-size: .95rem; flex: 1; min-width: 0; }
.profile-row .btn { white-space: nowrap; }
.btn.danger { border-color: var(--danger); color: var(--danger); background: #fff; }

/* ตั้งค่าโค้ชในโหมดกล้อง AI */
.coach-settings { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 10px; }
.coach-settings label { display: flex; align-items: center; gap: 6px; font-size: .92rem; color: #ffe9c9; }
.coach-settings select {
  min-height: 44px; font-family: inherit; font-size: .92rem; padding: 6px 8px;
  background: rgba(255,255,255,.1); color: #fff;
  border: 1px solid rgba(255,255,255,.3); border-radius: 10px;
}
.coach-settings option { color: var(--text); }
.coach-avatar { width: 46px; height: 46px; border-radius: 50%; overflow: hidden; background: #fff; flex: none; display: inline-block; }
.coach-avatar svg { width: 100%; height: 100%; display: block; }