/* ═══════════════════════════════════════════════════════════════
   SwingAI — Precision Sport Design System
   Fonts: Syne (display) · DM Mono (numbers) · Figtree (body)
═══════════════════════════════════════════════════════════════ */

:root {
  /* Core palette */
  --bg:          #0b0f0c;
  --bg-raised:   #111914;
  --bg-elevated: #172019;
  --border:      rgba(74, 222, 128, 0.1);
  --border-mid:  rgba(74, 222, 128, 0.18);

  /* Accent colors */
  --accent:      #4ade80;
  --accent-dim:  rgba(74, 222, 128, 0.15);
  --accent-glow: rgba(74, 222, 128, 0.25);
  --amber:       #fbbf24;
  --amber-dim:   rgba(251, 191, 36, 0.12);
  --red:         #f87171;
  --red-dim:     rgba(248, 113, 113, 0.12);

  /* Text */
  --text:        #edf2ee;
  --text-mid:    #a8b8aa;
  --text-dim:    #607062;

  /* Typography */
  --font-display: 'Syne', sans-serif;
  --font-mono:    'DM Mono', monospace;
  --font-body:    'Figtree', sans-serif;

  /* Layout */
  --header-h:  52px;
  --nav-h:     64px;
  --radius-sm: 8px;
  --radius:    14px;
  --radius-lg: 20px;
}

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

html {
  height: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
}

/* Subtle grain texture over everything */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
  opacity: 0.5;
}

/* ── App shell ─────────────────────────────────────────────── */
#app {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  max-width: 480px;
  margin: 0 auto;
  position: relative;
}

/* ── Header ────────────────────────────────────────────────── */
#appHeader {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  padding: 0 16px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  position: relative;
  z-index: 10;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  font-size: 1.4rem;
  line-height: 1;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.5px;
  color: var(--accent);
  line-height: 1;
}

.brand-sub {
  font-size: 0.65rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 1px;
}

.icon-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-raised);
  color: var(--text-mid);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
  -webkit-tap-highlight-color: transparent;
}

.icon-btn:hover, .icon-btn:focus-visible {
  color: var(--accent);
  border-color: var(--border-mid);
  background: var(--accent-dim);
}

/* ── Main content area ─────────────────────────────────────── */
#mainContent {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.view {
  display: none;
  position: absolute;
  inset: 0;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.view.active { display: block; }

/* ── Bottom nav ────────────────────────────────────────────── */
#bottomNav {
  display: flex;
  height: var(--nav-h);
  background: var(--bg);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  padding-bottom: env(safe-area-inset-bottom);
}

.nav-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: none;
  border: none;
  color: var(--text-dim);
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: color 0.2s;
  -webkit-tap-highlight-color: transparent;
  position: relative;
}

.nav-tab::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 0 0 2px 2px;
  transition: width 0.25s ease;
}

.nav-tab.active { color: var(--accent); }
.nav-tab.active::before { width: 32px; }

/* ═══════════════════════════════════════════════════════════════
   RECORD VIEW
═══════════════════════════════════════════════════════════════ */

#viewRecord {
  display: none;
  flex-direction: column;
  overflow: hidden;
}

#viewRecord.active {
  display: flex;
}

/* Camera container */
#videoContainer {
  position: relative;
  background: #000;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

#videoEl {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#videoContainer.flip-front #videoEl {
  transform: scaleX(-1);
}

#poseCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

#videoContainer.flip-front #poseCanvas {
  transform: scaleX(-1);
}

/* ── Countdown overlay ─────────────────────────────────────── */
#countdownOverlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s;
  z-index: 20;
  background: rgba(0,0,0,0.25);
}

#countdownOverlay.visible { opacity: 1; }

#countdownNum {
  font-family: var(--font-mono);
  font-size: 7rem;
  font-weight: 300;
  color: var(--accent);
  line-height: 1;
  text-shadow: 0 0 60px rgba(74,222,128,0.6), 0 0 20px rgba(74,222,128,0.4);
  animation: countPop 0.25s cubic-bezier(0.34,1.5,0.64,1);
}

#countdownNum.go {
  color: #fff;
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-shadow: 0 0 40px rgba(74,222,128,0.8);
}

@keyframes countPop {
  from { transform: scale(1.6); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}

#countdownStatus {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: rgba(237,242,238,0.7);
  text-transform: uppercase;
}

/* ── Position status bar ───────────────────────────────────── */
#positionStatus {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border-mid);
  border-radius: 20px;
  padding: 5px 14px 7px;
  pointer-events: none;
  z-index: 15;
  min-width: 140px;
}

#positionStatus.visible { display: flex; }

#positionStatusText {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--text-mid);
  text-transform: uppercase;
  white-space: nowrap;
}

#positionStatus.ready #positionStatusText { color: var(--accent); }

#holdBar {
  width: 100%;
  height: 2px;
  background: rgba(255,255,255,0.08);
  border-radius: 1px;
  overflow: hidden;
}

#holdBarFill {
  height: 100%;
  background: var(--accent);
  border-radius: 1px;
  width: 0%;
  transition: width 0.1s linear;
}

/* ── Auto-record toggle ────────────────────────────────────── */
#autoToggleWrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  flex-shrink: 0;
}

.auto-label {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  text-transform: uppercase;
}

.auto-toggle-label {
  position: relative;
  display: block;
  width: 36px;
  height: 20px;
  cursor: pointer;
}

.auto-toggle-label input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.toggle-track {
  position: absolute;
  inset: 0;
  background: var(--bg-elevated);
  border: 1px solid var(--border-mid);
  border-radius: 10px;
  transition: background 0.25s, border-color 0.25s;
}

.toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  background: var(--text-dim);
  border-radius: 50%;
  transition: transform 0.25s cubic-bezier(0.34,1.5,0.64,1), background 0.25s;
}

.auto-toggle-label input:checked ~ .toggle-track {
  background: var(--accent-dim);
  border-color: var(--accent);
}

.auto-toggle-label input:checked ~ .toggle-track .toggle-thumb {
  transform: translateX(16px);
  background: var(--accent);
}

/* ── Tutorial angle cards ──────────────────────────────────── */
.tut-angle-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 2px;
}

.angle-card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px;
  position: relative;
}

.angle-card--best {
  border-color: rgba(74,222,128,0.3);
  background: rgba(74,222,128,0.04);
}

.angle-card-badge {
  display: inline-block;
  background: var(--accent);
  color: #0b0f0c;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  padding: 2px 6px;
  border-radius: 4px;
  margin-bottom: 6px;
}

.angle-diagram {
  margin-bottom: 6px;
}

.angle-name {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 3px;
}

.angle-desc {
  font-size: 0.73rem;
  color: var(--text-mid);
  line-height: 1.4;
}

.angle-desc strong { color: var(--text); }

/* REC indicator */
#recIndicator {
  position: absolute;
  top: 12px;
  left: 12px;
  display: none;
  align-items: center;
  gap: 6px;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  padding: 5px 11px;
  border-radius: 20px;
  border: 1px solid rgba(248,113,113,0.3);
}

.rec-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--red);
  animation: recBlink 1s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes recBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.2; }
}

.rec-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--red);
  letter-spacing: 0.1em;
}

/* Live metrics HUD */
#liveMetrics {
  display: none;
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, transparent 100%);
  padding: 24px 16px 12px;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 0;
}

.hud-metric {
  flex: 1;
  text-align: center;
}

.hud-val {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--accent);
  line-height: 1;
}

.hud-lbl {
  display: block;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-top: 3px;
}

.hud-divider {
  width: 1px;
  height: 32px;
  background: var(--border-mid);
  flex-shrink: 0;
}

/* Camera controls */
#cameraControls {
  position: absolute;
  top: 12px;
  right: 12px;
  display: flex;
  gap: 8px;
}

.cam-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.12);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.cam-btn:active {
  transform: scale(0.9);
  background: rgba(74,222,128,0.2);
}

/* Alignment tips */
#alignTips {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 4px;
  pointer-events: none;
  transition: opacity 0.4s;
}

#alignTips.hidden { opacity: 0; }

.align-tip-row {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(74,222,128,0.2);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 0.72rem;
  color: rgba(237,242,238,0.85);
  white-space: nowrap;
}

.align-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* Record controls bar */
#recordControls {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px 12px;
  background: var(--bg);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.club-select {
  flex: 1;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  font-family: var(--font-body);
  font-size: 0.88rem;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%236B7A6A' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 28px;
  cursor: pointer;
  transition: border-color 0.2s;
}

.club-select:focus {
  outline: none;
  border-color: var(--border-mid);
}

/* Record button */
.record-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.1s;
}

.record-btn:active { transform: scale(0.94); }

.record-btn-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 2px solid var(--accent);
  animation: ringPulse 2.5s ease-in-out infinite;
}

@keyframes ringPulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.04); }
}

.record-btn-inner {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--accent);
  transition: background 0.2s, border-radius 0.25s;
  position: relative;
  z-index: 1;
}

.record-btn.recording .record-btn-ring {
  border-color: var(--red);
  animation: none;
  opacity: 1;
}

.record-btn.recording .record-btn-inner {
  background: var(--red);
  border-radius: 6px;
  width: 22px;
  height: 22px;
}

.record-btn-label {
  position: absolute;
  bottom: -14px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  white-space: nowrap;
}

.record-btn.loading .record-btn-ring {
  border-color: rgba(251,191,36,0.5);
  animation: pulse-ring 1.2s ease-in-out infinite;
}

.record-btn.loading .record-btn-inner {
  background: rgba(251,191,36,0.3);
  border-radius: 50%;
  width: 18px;
  height: 18px;
}

/* Upload progress */
#uploadProgress {
  display: none;
  padding: 10px 16px;
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.progress-track {
  height: 3px;
  background: var(--bg-elevated);
  border-radius: 2px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 2px;
  width: 0%;
  transition: width 0.3s ease;
}

.progress-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  text-align: center;
  margin-top: 5px;
}

/* ── Analysis Results ──────────────────────────────────────── */
#analysisResult {
  display: none;
  padding: 0 0 16px;
  background: var(--bg);
  animation: slideUp 0.35s ease;
}

@keyframes slideUp {
  from { transform: translateY(16px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.results-header {
  padding: 14px 16px 10px;
  border-bottom: 1px solid var(--border);
}

.results-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.metrics-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  margin-bottom: 1px;
}

.metric-card {
  background: var(--bg);
  padding: 14px 16px 10px;
  display: flex;
  flex-direction: column;
  gap: 1px;
  position: relative;
  overflow: hidden;
}

.metric-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent-dim);
  opacity: 0;
  transition: opacity 0.3s;
}

.metric-card.good::before { opacity: 1; }
.metric-card.warn::before { background: var(--amber-dim); opacity: 1; }
.metric-card.bad::before  { background: var(--red-dim);   opacity: 1; }

.mc-val {
  font-family: var(--font-mono);
  font-size: 1.8rem;
  font-weight: 400;
  color: var(--accent);
  line-height: 1;
  position: relative;
}

.metric-card.warn .mc-val { color: var(--amber); }
.metric-card.bad  .mc-val { color: var(--red); }

.mc-unit {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
  position: relative;
}

.mc-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-mid);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 4px;
  position: relative;
}

.mc-bar {
  margin-top: 8px;
  height: 2px;
  background: rgba(255,255,255,0.06);
  border-radius: 1px;
  overflow: hidden;
  position: relative;
}

.mc-bar-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 1px;
  width: 0%;
  transition: width 0.8s cubic-bezier(0.34, 1.2, 0.64, 1);
}

.metric-card.warn .mc-bar-fill { background: var(--amber); }
.metric-card.bad  .mc-bar-fill { background: var(--red); }

/* Faults section */
.faults-section {
  padding: 14px 16px 0;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.faults-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.faults-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 11px 13px;
  background: var(--red-dim);
  border: 1px solid rgba(248,113,113,0.15);
  border-radius: var(--radius-sm);
  font-size: 0.83rem;
  line-height: 1.45;
}

.faults-list li .icon {
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.faults-list.ok li {
  background: var(--accent-dim);
  border-color: rgba(74,222,128,0.15);
}

/* Result action buttons */
.result-actions {
  display: flex;
  gap: 10px;
  padding: 14px 16px 0;
}

.btn-ghost {
  flex: 0 0 auto;
  padding: 11px 20px;
  background: transparent;
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-sm);
  color: var(--text-mid);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  -webkit-tap-highlight-color: transparent;
}

.btn-ghost:hover { background: var(--bg-elevated); color: var(--text); }
.btn-ghost:disabled { opacity: 0.35; cursor: default; }

.btn-primary {
  flex: 1;
  padding: 11px 20px;
  background: var(--accent);
  border: none;
  border-radius: var(--radius-sm);
  color: #0b0f0c;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.1s;
  -webkit-tap-highlight-color: transparent;
}

.btn-primary:hover { opacity: 0.9; }
.btn-primary:active { transform: scale(0.98); }
.btn-primary:disabled { opacity: 0.35; cursor: default; }

/* ═══════════════════════════════════════════════════════════════
   HISTORY VIEW
═══════════════════════════════════════════════════════════════ */

.view-header {
  padding: 16px 16px 10px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 2;
}

.view-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--text-dim);
}

#historyList {
  padding: 12px 14px;
}

.swing-row {
  display: flex;
  align-items: stretch;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 10px;
  background: var(--bg-raised);
  cursor: pointer;
  transition: border-color 0.2s, transform 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.swing-row:hover  { border-color: var(--border-mid); }
.swing-row:active { transform: scale(0.99); }

.swing-thumb {
  width: 68px;
  flex-shrink: 0;
  background: #0a120b;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-dim);
  font-size: 1.4rem;
  overflow: hidden;
  position: relative;
}

.swing-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 60%, var(--bg-raised) 100%);
}

.swing-thumb video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.swing-info {
  flex: 1;
  padding: 11px 13px;
  min-width: 0;
}

.swing-date {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  letter-spacing: 0.03em;
  margin-bottom: 3px;
}

.swing-club {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.2px;
  margin-bottom: 5px;
}

.swing-mini-metrics {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.mini-metric {
  font-family: var(--font-mono);
  font-size: 0.67rem;
  color: var(--text-dim);
}

.mini-metric span {
  color: var(--accent);
  font-weight: 500;
}

.swing-fault-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  background: var(--red-dim);
  border: 1px solid rgba(248,113,113,0.15);
  border-radius: 20px;
  padding: 1px 7px;
  font-size: 0.62rem;
  font-family: var(--font-mono);
  color: var(--red);
}

.swing-fault-badge.none {
  background: var(--accent-dim);
  border-color: rgba(74,222,128,0.15);
  color: var(--accent);
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 60px 24px;
  color: var(--text-dim);
}

.empty-icon {
  font-size: 2.8rem;
  margin-bottom: 16px;
  opacity: 0.6;
}

.empty-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-mid);
  margin-bottom: 6px;
}

.empty-body {
  font-size: 0.83rem;
  line-height: 1.5;
}

/* ═══════════════════════════════════════════════════════════════
   DETAIL VIEW
═══════════════════════════════════════════════════════════════ */

.detail-header {
  padding: 10px 14px;
}

.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  color: var(--text-mid);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  padding: 6px 10px 6px 6px;
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
  -webkit-tap-highlight-color: transparent;
}

.back-btn:hover { color: var(--accent); background: var(--accent-dim); }

#detailContent {
  padding: 0 14px 20px;
}

#detailVideo {
  width: 100%;
  border-radius: var(--radius);
  background: #000;
  max-height: 45dvh;
  margin-bottom: 14px;
  display: block;
}

.detail-card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 10px;
}

.detail-card-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.detail-meta-date {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-bottom: 3px;
}

.detail-meta-club {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
}

.btn-danger {
  width: 100%;
  padding: 11px;
  background: transparent;
  border: 1px solid rgba(248,113,113,0.25);
  border-radius: var(--radius-sm);
  color: var(--red);
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
  margin-top: 6px;
  transition: background 0.2s;
  -webkit-tap-highlight-color: transparent;
}

.btn-danger:hover { background: var(--red-dim); }

/* Load more button */
#loadMoreBtn {
  display: block;
  width: 100%;
  padding: 11px;
  background: transparent;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
  font-family: var(--font-body);
  font-size: 0.83rem;
  cursor: pointer;
  margin-top: 4px;
  transition: border-color 0.2s, color 0.2s;
}

#loadMoreBtn:hover { border-color: var(--border-mid); color: var(--text-mid); }

/* ── Toast ─────────────────────────────────────────────────── */
#toast {
  position: fixed;
  bottom: calc(var(--nav-h) + 12px);
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  background: var(--bg-elevated);
  border: 1px solid var(--border-mid);
  color: var(--text);
  padding: 9px 20px;
  border-radius: 20px;
  font-size: 0.83rem;
  font-family: var(--font-body);
  opacity: 0;
  transition: opacity 0.25s, transform 0.25s;
  pointer-events: none;
  white-space: nowrap;
  z-index: 9998;
}

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

/* ═══════════════════════════════════════════════════════════════
   TUTORIAL OVERLAY
═══════════════════════════════════════════════════════════════ */

.tut-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11,15,12,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  z-index: 1000;
  display: flex;
  align-items: flex-end;
  padding: 0 0 env(safe-area-inset-bottom);
  transition: opacity 0.3s;
}

.tut-overlay.hidden {
  display: none;
}

.tut-modal {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border-mid);
  border-radius: 24px 24px 0 0;
  padding: 8px 0 0;
  max-height: 92dvh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: sheetUp 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes sheetUp {
  from { transform: translateY(60px); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}

/* Drag handle */
.tut-modal::before {
  content: '';
  display: block;
  width: 36px;
  height: 4px;
  background: var(--border-mid);
  border-radius: 2px;
  margin: 4px auto 12px;
  flex-shrink: 0;
}

.tut-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  z-index: 2;
  transition: color 0.2s, border-color 0.2s;
}

.tut-close:hover { color: var(--text); border-color: var(--border-mid); }

/* Slides container */
.tut-slides {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.tut-slide {
  display: none;
  padding: 8px 24px 0;
  animation: fadeTutIn 0.3s ease;
  overflow-y: auto;
  max-height: calc(92dvh - 130px);
  -webkit-overflow-scrolling: touch;
}

.tut-slide.active { display: block; }

@keyframes fadeTutIn {
  from { opacity: 0; transform: translateX(16px); }
  to   { opacity: 1; transform: translateX(0); }
}

.tut-icon-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 16px;
}

.tut-icon-ring {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--accent-dim);
  border: 1px solid var(--border-mid);
  display: flex;
  align-items: center;
  justify-content: center;
}

.tut-icon-ring--go {
  background: rgba(74,222,128,0.2);
  border-color: rgba(74,222,128,0.35);
}

.tut-icon-emoji { font-size: 2rem; }

.tut-heading {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.5px;
  margin-bottom: 10px;
  text-align: center;
}

.tut-body {
  font-size: 0.9rem;
  color: var(--text-mid);
  line-height: 1.6;
  text-align: center;
  margin-bottom: 14px;
}

.tut-body strong { color: var(--text); }
.tut-body-sm { font-size: 0.82rem; margin-bottom: 10px; }

.tut-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: var(--accent-dim);
  border: 1px solid rgba(74,222,128,0.2);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 0.75rem;
  color: var(--accent);
  text-align: center;
}

/* Diagram */
.tut-diagram {
  margin: 0 0 16px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.diag-scene {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 12px;
}

.diag-camera, .diag-golfer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.diag-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.diag-arrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.diag-hip-line {
  border-top: 1px dashed rgba(251,191,36,0.4);
  padding-top: 8px;
  text-align: center;
}

.diag-hip-label {
  font-size: 0.72rem;
  color: var(--amber);
}

/* Tips list */
.tut-tips {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tut-tip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 13px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-mid);
}

.tut-tip strong { color: var(--text); }

.tip-num {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--accent);
  background: var(--accent-dim);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: 0.02em;
}

/* Metric explainers */
.metric-explainers {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.me-row {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}

.me-key {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 44px;
  flex-shrink: 0;
}

.me-num {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 400;
  line-height: 1;
}

.me-unit {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 2px;
}

.me-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 0.8rem;
  color: var(--text-mid);
  line-height: 1.4;
}

.me-info strong { color: var(--text); display: block; font-weight: 600; }

/* Fault grid */
.fault-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.fg-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 11px;
  font-size: 0.8rem;
  color: var(--text-mid);
}

.fg-icon { font-size: 1rem; }

/* Steps */
.tut-steps {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.ts-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.88rem;
  color: var(--text-mid);
}

.ts-item strong { color: var(--text); }

.ts-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: #0b0f0c;
  background: var(--accent);
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.tut-go-btn {
  width: 100%;
  padding: 14px;
  background: var(--accent);
  border: none;
  border-radius: var(--radius-sm);
  color: #0b0f0c;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.1s;
  -webkit-tap-highlight-color: transparent;
  margin-bottom: 16px;
}

.tut-go-btn:active { transform: scale(0.98); opacity: 0.9; }

/* Tutorial footer */
.tut-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px 16px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.tut-dots {
  display: flex;
  gap: 6px;
  align-items: center;
}

.tut-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--border-mid);
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
}

.tut-dot.active {
  background: var(--accent);
  transform: scale(1.3);
}

.tut-next-btn {
  padding: 9px 20px;
  background: var(--accent);
  border: none;
  border-radius: var(--radius-sm);
  color: #0b0f0c;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.2s;
  -webkit-tap-highlight-color: transparent;
}

.tut-next-btn:hover { opacity: 0.9; }

/* Hide footer next button on last slide */
.tut-footer.last-slide .tut-next-btn { display: none; }