/* ==========================================================================
   PECK TRAIN — Standalone App Styles
   Brand Tokens: Military Green #5C6134 · Matte Black #151515 · Olive #8A8551
   ========================================================================== */

:root {
  --train-bg: #121411;
  --train-panel: #1a1e17;
  --train-panel-light: #242a20;
  --train-border: rgba(138, 133, 81, 0.28);
  --train-border-bright: rgba(138, 133, 81, 0.65);
  --train-accent: #8A8551;
  --train-accent-hot: #b0ab6d;
  --train-accent-glow: rgba(138, 133, 81, 0.35);
  --train-green: #5C6134;
  --train-green-bright: #7a8244;
  --train-text: #f0f2eb;
  --train-text-dim: #9da391;
  --train-card-bg: #181d16;
  --train-radius: 12px;
}

body.page-train {
  background: var(--train-bg);
  color: var(--train-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* App Main Container */
.train-app-wrap {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 24px 20px 80px;
  flex: 1;
}

/* Top App Bar */
.train-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: var(--train-panel);
  border: 1px solid var(--train-border);
  border-radius: var(--train-radius);
  margin-bottom: 24px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.train-brand-group {
  display: flex;
  align-items: center;
  gap: 14px;
}

.train-brand-group img {
  height: 28px;
  width: auto;
}

.train-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(92, 97, 52, 0.35);
  border: 1px solid var(--train-accent);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--train-accent-hot);
}

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

.train-icon-btn {
  background: var(--train-panel-light);
  border: 1px solid var(--train-border);
  color: var(--train-text);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
  text-decoration: none;
}

.train-icon-btn:hover {
  background: var(--train-accent);
  color: #121411;
  border-color: var(--train-accent);
}

.train-icon-btn.active {
  background: var(--train-green);
  border-color: var(--train-accent-hot);
  color: #fff;
}

/* App Navigation Tabs */
.train-nav-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--train-border);
  padding-bottom: 12px;
  overflow-x: auto;
  scrollbar-width: none;
}
.train-nav-tabs::-webkit-scrollbar { display: none; }

.train-tab-btn {
  background: transparent;
  border: 1px solid transparent;
  color: var(--train-text-dim);
  padding: 10px 18px;
  border-radius: 8px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.train-tab-btn:hover {
  color: var(--train-text);
  background: rgba(138, 133, 81, 0.1);
}

.train-tab-btn.active {
  background: var(--train-panel-light);
  border-color: var(--train-border-bright);
  color: var(--train-accent-hot);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
}

/* Tab View Panes */
.train-view-pane {
  display: none;
  animation: trainFadeIn 0.3s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.train-view-pane.active {
  display: block;
}

@keyframes trainFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --------------------------------------------------------------------------
   VIEW 1: WORKOUTS & SESSIONS
   -------------------------------------------------------------------------- */
.train-hero-card {
  background: linear-gradient(135deg, #272d1f 0%, #151813 100%);
  border: 1px solid var(--train-border-bright);
  border-radius: var(--train-radius);
  padding: 28px;
  margin-bottom: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.train-hero-content h2 {
  font-family: var(--font-display);
  font-size: 2.2rem;
  margin: 6px 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: #fff;
}

.train-hero-content p {
  color: var(--train-text-dim);
  font-size: 0.92rem;
  max-width: 580px;
  margin: 0 0 18px;
}

.train-hero-meta {
  display: flex;
  gap: 16px;
  align-items: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--train-accent-hot);
}

.train-btn-primary {
  background: var(--train-accent);
  color: #121411;
  border: none;
  padding: 12px 22px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 700;
  border-radius: 6px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
  box-shadow: 0 4px 16px rgba(138, 133, 81, 0.35);
}

.train-btn-primary:hover {
  background: var(--train-accent-hot);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(138, 133, 81, 0.5);
}

.train-btn-secondary {
  background: var(--train-panel-light);
  border: 1px solid var(--train-border);
  color: var(--train-text);
  padding: 11px 18px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.train-btn-secondary:hover {
  background: rgba(138, 133, 81, 0.2);
  border-color: var(--train-accent);
}

/* Category Filters */
.train-filters {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.train-filter-btn {
  background: var(--train-panel);
  border: 1px solid var(--train-border);
  color: var(--train-text-dim);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}

.train-filter-btn.active,
.train-filter-btn:hover {
  background: var(--train-green);
  color: #fff;
  border-color: var(--train-accent-hot);
}

/* Routine Cards Grid */
.train-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

.workout-box {
  background: var(--train-card-bg);
  border: 1px solid var(--train-border);
  border-radius: var(--train-radius);
  padding: 22px;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, border-color 0.25s ease;
  position: relative;
  overflow: hidden;
}

.workout-box:hover {
  transform: translateY(-3px);
  border-color: var(--train-border-bright);
}

.workout-box-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.workout-tag {
  font-size: 0.65rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(92, 97, 52, 0.35);
  color: var(--train-accent-hot);
  border: 1px solid var(--train-border);
}

.workout-box h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  text-transform: uppercase;
  margin: 0 0 8px;
  letter-spacing: 0.03em;
}

.workout-box p {
  color: var(--train-text-dim);
  font-size: 0.84rem;
  margin: 0 0 16px;
  flex: 1;
}

.workout-incline-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 0, 0, 0.4);
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--train-text);
  border: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 16px;
}

.workout-exercises-preview {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 12px;
}

.preview-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  color: var(--train-text-dim);
}

.preview-row strong {
  color: #e4e7dd;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   VIEW 2: ACTIVE PLAYER (Interactive Guided Session)
   -------------------------------------------------------------------------- */
.player-container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
}

.player-main-card {
  background: var(--train-card-bg);
  border: 1px solid var(--train-border-bright);
  border-radius: var(--train-radius);
  padding: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.6);
}

.player-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--train-border);
  padding-bottom: 14px;
  margin-bottom: 24px;
}

.player-session-title {
  text-align: left;
}

.player-session-title small {
  color: var(--train-accent-hot);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.player-session-title h3 {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-size: 1.3rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Circular Timer */
.player-timer-wrap {
  position: relative;
  width: 240px;
  height: 240px;
  margin: 10px auto 20px;
}

.player-timer-svg {
  transform: rotate(-90deg);
  width: 100%;
  height: 100%;
}

.timer-bg-circle {
  fill: none;
  stroke: rgba(255, 255, 255, 0.08);
  stroke-width: 8;
}

.timer-progress-circle {
  fill: none;
  stroke: var(--train-accent);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 691;
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 1s linear, stroke 0.3s;
}

.player-timer-inner {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.player-time-display {
  font-family: var(--font-display);
  font-size: 3.4rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1;
  color: #fff;
  font-variant-numeric: tabular-nums;
}

.player-time-label {
  font-size: 0.72rem;
  color: var(--train-text-dim);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 6px;
}

/* Current Exercise Information */
.player-exercise-name {
  font-family: var(--font-display);
  font-size: 1.9rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin: 0 0 8px;
  color: #fff;
}

.player-cue-box {
  background: rgba(0, 0, 0, 0.4);
  border-left: 3px solid var(--train-accent);
  padding: 12px 18px;
  border-radius: 4px;
  margin: 14px 0 20px;
  font-size: 0.88rem;
  color: #d8ddcf;
  text-align: left;
  max-width: 480px;
}

/* Board Setting Banner */
.player-board-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 8px 16px;
  background: var(--train-panel-light);
  border: 1px solid var(--train-border-bright);
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--train-accent-hot);
  margin-bottom: 24px;
}

/* Interactive Rep Counter */
.player-reps-counter {
  display: flex;
  align-items: center;
  gap: 16px;
  background: rgba(36, 42, 32, 0.6);
  border: 1px solid var(--train-border);
  padding: 8px 16px;
  border-radius: 8px;
  margin-bottom: 24px;
}

.player-reps-counter span {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--train-text-dim);
}

.player-reps-counter strong {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: #fff;
  min-width: 40px;
}

.rep-btn {
  background: var(--train-green);
  border: 1px solid var(--train-accent);
  color: #fff;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: all 0.15s ease;
}

.rep-btn:hover {
  background: var(--train-accent);
  color: #000;
  transform: scale(1.08);
}

/* Player Controls */
.player-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-ctrl {
  background: var(--train-panel-light);
  border: 1px solid var(--train-border);
  color: var(--train-text);
  padding: 10px 18px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 700;
  transition: all 0.2s ease;
}

.btn-ctrl:hover {
  background: rgba(138, 133, 81, 0.25);
  border-color: var(--train-accent);
}

.btn-ctrl.main-play {
  background: var(--train-accent);
  color: #121411;
  padding: 12px 28px;
  font-family: var(--font-display);
  font-size: 1.2rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: none;
}

.btn-ctrl.main-play:hover {
  background: var(--train-accent-hot);
  transform: translateY(-2px);
}

/* Player Sidebar: Exercise Sequence */
.player-sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sequence-card {
  background: var(--train-card-bg);
  border: 1px solid var(--train-border);
  border-radius: var(--train-radius);
  padding: 20px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.sequence-card h4 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 14px;
  color: var(--train-text);
}

.sequence-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.seq-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 6px;
  font-size: 0.82rem;
  transition: all 0.2s;
}

.seq-item.active {
  background: rgba(92, 97, 52, 0.4);
  border-color: var(--train-accent-hot);
  color: #fff;
  font-weight: 700;
}

.seq-item.done {
  opacity: 0.6;
  text-decoration: line-through;
}

/* --------------------------------------------------------------------------
   VIEW 3: ANGLE LAB (Slant Board Incline Simulator)
   -------------------------------------------------------------------------- */
.angle-lab-container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
}

.angle-sim-card {
  background: var(--train-card-bg);
  border: 1px solid var(--train-border-bright);
  border-radius: var(--train-radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.angle-sim-card h3 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  text-transform: uppercase;
  margin: 0 0 6px;
  letter-spacing: 0.04em;
}

.angle-sim-card p {
  color: var(--train-text-dim);
  font-size: 0.88rem;
  margin: 0 0 24px;
  text-align: center;
}

/* SVG Board Canvas */
.board-canvas-box {
  width: 100%;
  max-width: 520px;
  height: 260px;
  background: #0f120e;
  border: 1px solid var(--train-border);
  border-radius: 8px;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  margin-bottom: 24px;
}

.angle-display-tag {
  position: absolute;
  top: 14px;
  left: 16px;
  background: rgba(0, 0, 0, 0.65);
  border: 1px solid var(--train-accent);
  padding: 6px 12px;
  border-radius: 4px;
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--train-accent-hot);
}

/* Slider Controls */
.angle-slider-wrap {
  width: 100%;
  max-width: 480px;
  margin-bottom: 20px;
}

.angle-slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--train-text-dim);
  margin-bottom: 8px;
}

.angle-slider {
  width: 100%;
  accent-color: var(--train-accent);
  cursor: pointer;
  height: 8px;
  border-radius: 4px;
}

/* Preset Buttons */
.angle-presets {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.preset-btn {
  background: var(--train-panel-light);
  border: 1px solid var(--train-border);
  color: var(--train-text);
  padding: 8px 16px;
  border-radius: 6px;
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all 0.2s;
}

.preset-btn.active,
.preset-btn:hover {
  background: var(--train-accent);
  color: #121411;
  border-color: var(--train-accent);
}

/* Angle Info Sidebar */
.angle-info-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.angle-details-box {
  background: var(--train-card-bg);
  border: 1px solid var(--train-border);
  border-radius: var(--train-radius);
  padding: 22px;
}

.angle-details-box h4 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  text-transform: uppercase;
  margin: 0 0 10px;
  letter-spacing: 0.04em;
  color: var(--train-accent-hot);
}

.muscle-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 12px 0 16px;
}

.muscle-pill {
  background: rgba(92, 97, 52, 0.3);
  border: 1px solid var(--train-border);
  color: #e2e6d8;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
}

.safety-note-box {
  background: rgba(92, 97, 52, 0.2);
  border-left: 3px solid var(--train-accent-hot);
  padding: 12px 14px;
  font-size: 0.78rem;
  color: #d1d6c7;
  line-height: 1.45;
}

/* --------------------------------------------------------------------------
   VIEW 4: BREATH STUDIO
   -------------------------------------------------------------------------- */
.breath-studio-card {
  background: var(--train-card-bg);
  border: 1px solid var(--train-border-bright);
  border-radius: var(--train-radius);
  padding: 34px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.6);
}

.breath-mode-selector {
  display: flex;
  gap: 8px;
  margin-bottom: 30px;
  flex-wrap: wrap;
  justify-content: center;
}

.protocol-btn {
  background: var(--train-panel-light);
  border: 1px solid var(--train-border);
  color: var(--train-text-dim);
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}

.protocol-btn.active {
  background: var(--train-green);
  border-color: var(--train-accent-hot);
  color: #fff;
}

/* Animated Orb */
.orb-stage {
  width: 280px;
  height: 280px;
  display: grid;
  place-items: center;
  margin: 10px auto 26px;
  position: relative;
}

.breath-core-orb {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, #8A8551 0%, #5C6134 60%, #1a1e17 100%);
  display: grid;
  place-items: center;
  border: 2px solid var(--train-accent-hot);
  box-shadow: 0 0 35px var(--train-accent-glow), 0 0 70px rgba(92, 97, 52, 0.25);
  transition: transform 4s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 4s ease;
}

.orb-text-content {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #fff;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7);
}

.breath-instructions {
  color: var(--train-text-dim);
  font-size: 0.88rem;
  max-width: 440px;
  margin-bottom: 24px;
}

.breath-meta-stats {
  display: flex;
  gap: 24px;
  font-size: 0.8rem;
  font-weight: 800;
  color: var(--train-accent-hot);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* --------------------------------------------------------------------------
   VIEW 5: PROGRESS & STATS
   -------------------------------------------------------------------------- */
.stats-summary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stat-metric-card {
  background: var(--train-card-bg);
  border: 1px solid var(--train-border);
  border-radius: var(--train-radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.stat-metric-card span {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--train-text-dim);
  margin-bottom: 6px;
}

.stat-metric-card strong {
  font-family: var(--font-display);
  font-size: 2.4rem;
  color: #fff;
  letter-spacing: 0.02em;
}

.progress-charts-row {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 20px;
  margin-bottom: 24px;
}

.chart-panel {
  background: var(--train-card-bg);
  border: 1px solid var(--train-border);
  border-radius: var(--train-radius);
  padding: 24px;
}

.chart-panel h4 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin: 0 0 16px;
}

.train-week-bars {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  height: 140px;
  padding: 10px 0;
  border-bottom: 1px solid var(--train-border);
}

.train-bar-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  height: 100%;
  justify-content: flex-end;
}

.train-bar-fill {
  width: 100%;
  background: linear-gradient(to top, var(--train-green), var(--train-accent));
  border-radius: 4px 4px 0 0;
  transition: height 0.6s cubic-bezier(0.2, 0.7, 0.2, 1);
  min-height: 4px;
}

.train-bar-label {
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--train-text-dim);
}

/* History Log */
.history-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 280px;
  overflow-y: auto;
}

.history-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 6px;
  font-size: 0.8rem;
}

.history-item strong {
  color: #fff;
}

.history-item span {
  color: var(--train-accent-hot);
  font-weight: 700;
}

/* Celebration Modal */
.celebration-modal {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  display: grid;
  place-items: center;
  z-index: 10000;
  padding: 20px;
}

.celebration-modal[hidden] {
  display: none;
}

.celebration-box {
  background: #191e16;
  border: 2px solid var(--train-accent-hot);
  border-radius: var(--train-radius);
  padding: 36px 28px;
  max-width: 480px;
  width: 100%;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 40px var(--train-accent-glow);
  animation: celebIn 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes celebIn {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

.celebration-box h2 {
  font-family: var(--font-display);
  font-size: 2.2rem;
  text-transform: uppercase;
  margin: 12px 0 8px;
  letter-spacing: 0.04em;
  color: #fff;
}

.celebration-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 20px 0 24px;
}

.celeb-metric {
  background: rgba(0, 0, 0, 0.4);
  padding: 14px;
  border-radius: 8px;
  border: 1px solid var(--train-border);
}

.celeb-metric span {
  display: block;
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--train-text-dim);
}

.celeb-metric strong {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--train-accent-hot);
}

/* --------------------------------------------------------------------------
   RESPONSIVE QUERIES
   -------------------------------------------------------------------------- */
@media (max-width: 900px) {
  .player-container,
  .angle-lab-container,
  .progress-charts-row {
    grid-template-columns: 1fr;
  }
  
  .stats-summary-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .train-hero-card {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 600px) {
  .train-header-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .train-header-actions {
    width: 100%;
    justify-content: space-between;
  }

  .player-time-display {
    font-size: 2.6rem;
  }
}

/* --------------------------------------------------------------------------
   AUTHENTICATION GATE (Login Required)
   -------------------------------------------------------------------------- */
.train-auth-gate {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 60px 20px;
  animation: trainFadeIn 0.3s ease;
}

.auth-gate-box {
  background: var(--train-card-bg);
  border: 1px solid var(--train-border-bright);
  border-radius: var(--train-radius);
  padding: 44px 36px;
  max-width: 480px;
  width: 100%;
  text-align: center;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7), 0 0 35px var(--train-accent-glow);
  position: relative;
}

.auth-gate-badge {
  display: inline-block;
  background: rgba(92, 97, 52, 0.35);
  border: 1px solid var(--train-accent);
  color: var(--train-accent-hot);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 22px;
}

.auth-gate-logo {
  display: flex;
  justify-content: center;
  margin-bottom: 16px;
}

.auth-gate-logo img {
  max-width: 240px;
  height: auto;
}

.auth-gate-box h2 {
  font-family: var(--font-display);
  font-size: 2.3rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin: 0 0 10px;
  color: #fff;
}

.auth-gate-box h2 span {
  color: var(--train-accent-hot);
}

.auth-gate-sub {
  color: var(--train-text-dim);
  font-size: 0.88rem;
  line-height: 1.5;
  margin: 0 0 24px;
}

.auth-gate-form {
  text-align: left;
}

.auth-input-group {
  margin-bottom: 16px;
}

.auth-input-group label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--train-text-dim);
  margin-bottom: 6px;
}

.auth-input-group input {
  width: 100%;
  padding: 12px 14px;
  background: #0f120e;
  border: 1px solid var(--train-border);
  border-radius: 6px;
  color: #fff;
  font-family: inherit;
  font-size: 0.95rem;
  box-sizing: border-box;
  transition: border-color 0.2s;
}

.auth-input-group input:focus {
  border-color: var(--train-accent-hot);
  outline: none;
}

.auth-status-msg {
  min-height: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 10px;
  text-align: center;
}

.auth-status-msg.error {
  color: #ff6b6b;
}

.auth-status-msg.success {
  color: #8fd16a;
}

.auth-otp-notice {
  font-size: 0.82rem;
  color: var(--train-accent-hot);
  margin-bottom: 14px;
  text-align: center;
  line-height: 1.4;
}

.auth-text-btn {
  background: transparent;
  border: none;
  color: var(--train-accent-hot);
  cursor: pointer;
  padding: 0;
  font-size: 0.76rem;
  font-weight: 600;
  text-decoration: underline;
}

.auth-text-btn:hover {
  color: #fff;
}

.auth-gate-footer {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--train-border);
}

.auth-back-link {
  font-size: 0.78rem;
  color: var(--train-text-dim);
  text-decoration: none;
  transition: color 0.2s;
}

.auth-back-link:hover {
  color: #fff;
}

/* User Badge in Top Bar */
.train-user-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid var(--train-border);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--train-text);
}

.train-user-badge .user-avatar-icon {
  font-size: 0.85rem;
}