/* Modern Elite Swimming Mastery Theme */
:root {
  --bg-primary: #0a0f1d;
  --bg-secondary: #10192e;
  --bg-card: rgba(18, 28, 52, 0.7);
  --bg-card-hover: rgba(24, 38, 70, 0.85);
  --border-color: rgba(64, 110, 180, 0.25);
  --border-focus: #00d2ff;
  
  --text-main: #f0f4fc;
  --text-muted: #8ea2c6;
  --text-dim: #5a6e94;
  
  --accent-cyan: #00e5ff;
  --accent-blue: #0072ff;
  --accent-gold: #ffd166;
  --accent-green: #06d6a0;
  --accent-purple: #9d4edd;
  
  --glow-cyan: rgba(0, 229, 255, 0.25);
  --glow-blue: rgba(0, 114, 255, 0.25);
  
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(at 0% 0%, rgba(0, 114, 255, 0.12) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(0, 229, 255, 0.08) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  font-family: var(--font-sans);
  min-height: 100vh;
  padding: 24px;
}

.app-container {
  max-width: 1400px;
  margin: 0 auto;
}

/* Header */
.cockpit-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 20px 28px;
  margin-bottom: 24px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.brand {
  display: flex;
  align-items: center;
  gap: 18px;
}

.logo-icon {
  font-size: 2.4rem;
  background: linear-gradient(135deg, rgba(0, 229, 255, 0.2), rgba(0, 114, 255, 0.3));
  border: 1px solid var(--border-color);
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px var(--glow-cyan);
}

.brand-text h1 {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  background: linear-gradient(90deg, #ffffff, var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subtitle {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
  margin-top: 3px;
}

.header-badges {
  display: flex;
  gap: 12px;
}

.badge {
  font-size: 0.78rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 30px;
  border: 1px solid var(--border-color);
}

.badge-pulse {
  background: rgba(6, 214, 160, 0.12);
  color: var(--accent-green);
  border-color: rgba(6, 214, 160, 0.3);
}

.badge-workspace {
  background: rgba(0, 114, 255, 0.12);
  color: var(--accent-cyan);
  border-color: rgba(0, 229, 255, 0.3);
  font-family: var(--font-mono);
}

/* Nav Tabs */
.cockpit-nav {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
}

.nav-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s ease;
  backdrop-filter: blur(10px);
}

.nav-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-main);
  border-color: rgba(0, 229, 255, 0.4);
}

.nav-btn.active {
  background: linear-gradient(135deg, rgba(0, 114, 255, 0.3), rgba(0, 229, 255, 0.2));
  color: #ffffff;
  border-color: var(--accent-cyan);
  box-shadow: 0 4px 20px var(--glow-cyan);
}

.btn-icon {
  font-size: 1.2rem;
}

/* Tab Content */
.tab-content {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* TAB 1: KIDS SECTION */
.kids-hero-banner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(135deg, rgba(255, 209, 102, 0.1), rgba(0, 229, 255, 0.1));
  border: 1px solid rgba(255, 209, 102, 0.3);
  border-radius: 18px;
  padding: 24px 32px;
  margin-bottom: 24px;
}

.hero-info h2 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--accent-gold);
}

.motto {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 6px;
  max-width: 650px;
}

.current-level-box {
  background: rgba(10, 15, 29, 0.7);
  border: 1.5px solid var(--accent-gold);
  border-radius: 16px;
  padding: 14px 24px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(255, 209, 102, 0.15);
}

.lvl-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--accent-gold);
}

.lvl-number {
  font-size: 2.2rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.1;
  font-family: var(--font-mono);
}

.lvl-name {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* Levels Grid */
.levels-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.level-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 20px 16px;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 230px;
  transition: all 0.25s ease;
}

.level-card.completed {
  border-color: rgba(6, 214, 160, 0.4);
  background: rgba(6, 214, 160, 0.05);
}

.level-card.active-card {
  border-color: var(--accent-gold);
  background: linear-gradient(180deg, rgba(255, 209, 102, 0.15), rgba(18, 28, 52, 0.8));
  box-shadow: 0 6px 25px rgba(255, 209, 102, 0.2);
  transform: translateY(-4px);
}

.level-card.locked {
  opacity: 0.6;
}

.lvl-tag {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.pulse-tag {
  color: var(--accent-gold);
}

.lvl-icon {
  font-size: 2.2rem;
  margin-bottom: 10px;
}

.level-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.level-card p {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin-bottom: 12px;
}

.status-badge {
  background: rgba(6, 214, 160, 0.2);
  color: var(--accent-green);
  font-size: 0.7rem;
  font-weight: 800;
  padding: 5px;
  border-radius: 8px;
}

.goal-pill {
  background: rgba(0, 229, 255, 0.1);
  color: var(--accent-cyan);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 5px;
  border-radius: 8px;
}

/* Two-Button Tracker */
.two-button-tracker {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 28px;
}

.tracker-header h3 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-main);
}

.tracker-header p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
  margin-bottom: 20px;
}

.tracker-inputs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.tracker-box {
  background: rgba(10, 15, 29, 0.6);
  border: 1.5px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
}

.box-badge {
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}

.rocket-box .box-badge { color: var(--accent-cyan); }
.submarine-box .box-badge { color: var(--accent-green); }

.tracker-box h4 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.box-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.input-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.input-row input {
  flex: 1;
  background: var(--bg-primary);
  border: 1.5px solid var(--border-color);
  border-radius: 12px;
  padding: 12px 18px;
  font-size: 1.3rem;
  font-family: var(--font-mono);
  font-weight: 700;
  color: #ffffff;
  outline: none;
  transition: all 0.2s;
}

.input-row input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 15px var(--glow-cyan);
}

.unit {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-muted);
}

.record-box {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  background: rgba(255, 255, 255, 0.04);
  padding: 8px 14px;
  border-radius: 8px;
}

.record-box strong {
  color: var(--accent-gold);
  font-family: var(--font-mono);
  font-size: 1rem;
}

.tracker-action {
  display: flex;
  gap: 14px;
  margin-bottom: 24px;
}

.note-input {
  flex: 1;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 12px 18px;
  color: #ffffff;
  font-size: 0.9rem;
  outline: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  border: none;
  border-radius: 12px;
  padding: 12px 28px;
  color: #000000;
  font-size: 0.95rem;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 4px 15px var(--glow-cyan);
  transition: all 0.2s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--glow-cyan);
}

.kids-history h4 {
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.log-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 18px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  margin-bottom: 8px;
  font-size: 0.85rem;
}

/* TAB 2: OHASHI KINEMATICS */
.ohashi-header-banner {
  background: linear-gradient(135deg, rgba(0, 114, 255, 0.15), rgba(157, 78, 221, 0.15));
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 24px 32px;
  margin-bottom: 24px;
}

.ohashi-header-banner h2 {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--accent-cyan);
}

.ohashi-layout {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 24px;
}

.calculator-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 26px;
}

.calculator-panel h3 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.calc-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  background: var(--bg-primary);
  border: 1.5px solid var(--border-color);
  border-radius: 10px;
  padding: 10px 14px;
  color: #ffffff;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  outline: none;
}

.form-group input:focus {
  border-color: var(--border-focus);
}

.helper {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-top: 4px;
  display: block;
}

.toggle-group {
  display: flex;
  gap: 8px;
}

.pool-toggle {
  flex: 1;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
}

.pool-toggle.active {
  background: var(--accent-blue);
  color: #ffffff;
  border-color: var(--accent-cyan);
}

.calc-constants {
  background: rgba(255, 255, 255, 0.03);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 10px;
}

.results-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 26px;
}

.results-panel h3 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 18px;
}

.tier-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: linear-gradient(135deg, rgba(6, 214, 160, 0.12), rgba(0, 114, 255, 0.12));
  border: 1.5px solid var(--accent-green);
  border-radius: 16px;
  padding: 18px 24px;
  margin-bottom: 22px;
}

.tier-badge {
  font-size: 1.4rem;
  font-weight: 800;
  background: var(--accent-green);
  color: #000000;
  padding: 8px 16px;
  border-radius: 12px;
  font-family: var(--font-mono);
}

.tier-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: #ffffff;
}

.tier-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 3px;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 24px;
}

.metric-box {
  background: rgba(10, 15, 29, 0.6);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 16px;
}

.metric-label {
  display: block;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.metric-val {
  display: block;
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  margin-bottom: 6px;
}

.metric-val small {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.metric-formula {
  font-size: 0.68rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
}

.session-breakdown-box h4 {
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.breakdown-table {
  background: rgba(10, 15, 29, 0.5);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
}

.b-row {
  display: grid;
  grid-template-columns: 50px 70px 80px 60px 60px 100px 1fr;
  padding: 10px 16px;
  font-size: 0.82rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.header-row {
  background: rgba(255, 255, 255, 0.03);
  font-weight: 800;
  color: var(--text-muted);
}

.master-row {
  background: rgba(0, 114, 255, 0.08);
}

.highlight {
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

/* TAB 3: TELEMETRY */
.telemetry-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.telemetry-header h2 {
  font-size: 1.35rem;
  font-weight: 800;
}

.telemetry-header p {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 3px;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 8px 18px;
  color: var(--text-main);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
}

.telemetry-summary-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.sum-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 18px 22px;
}

.card-num {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  color: #ffffff;
  font-family: var(--font-mono);
  margin-bottom: 4px;
}

.card-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 600;
}

.telemetry-table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  overflow: hidden;
  max-height: 550px;
  overflow-y: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.82rem;
}

.data-table th {
  position: sticky;
  top: 0;
  background: #141f38;
  padding: 12px 16px;
  font-weight: 800;
  color: var(--text-muted);
  border-bottom: 1.5px solid var(--border-color);
}

.data-table td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.data-table tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

/* AI Debrief Hero Card */
.ai-debrief-hero {
  background: linear-gradient(135deg, rgba(14, 25, 48, 0.85), rgba(18, 38, 70, 0.7));
  border: 1.5px solid rgba(0, 229, 255, 0.35);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.4), inset 0 0 24px rgba(0, 229, 255, 0.05);
  border-radius: 20px;
  padding: 24px 28px;
  margin-bottom: 28px;
  position: relative;
  overflow: hidden;
}

.ai-debrief-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-blue), var(--accent-gold));
}

.debrief-top-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}

.debrief-title-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.debrief-badge {
  background: rgba(0, 229, 255, 0.15);
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.5px;
}

.debrief-model-tag {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
  padding: 4px 10px;
  border-radius: 8px;
}

.debrief-title-wrap h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  width: 100%;
  margin-top: 4px;
}

.debrief-meta {
  display: flex;
  gap: 10px;
  align-items: center;
}

.session-date-pill, .session-stat-pill {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-color);
  padding: 6px 12px;
  border-radius: 8px;
  color: var(--accent-gold);
}

/* Golden Cue Banner */
.golden-cue-banner {
  background: linear-gradient(135deg, rgba(255, 209, 102, 0.1), rgba(255, 183, 3, 0.04));
  border: 1.5px solid rgba(255, 209, 102, 0.4);
  border-radius: 16px;
  padding: 20px 24px;
  margin-bottom: 18px;
}

.cue-left-accent {
  font-size: 0.78rem;
  font-weight: 800;
  color: var(--accent-gold);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.cue-main-text {
  font-size: 1.35rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1.4;
  margin-bottom: 8px;
  text-shadow: 0 0 20px rgba(255, 209, 102, 0.25);
}

.cue-subtext {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Dialectic Accordion */
.dialectic-accordion {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
}

.accordion-summary {
  padding: 12px 18px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--accent-cyan);
  user-select: none;
}

.accordion-summary:hover {
  background: rgba(255, 255, 255, 0.03);
}

.accordion-content {
  padding: 16px 18px;
  border-top: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sparring-step {
  background: rgba(14, 23, 44, 0.6);
  border-left: 3px solid var(--accent-blue);
  border-radius: 8px;
  padding: 14px 16px;
}

.step-qwen { border-left-color: var(--accent-green); }
.step-v3 { border-left-color: var(--accent-cyan); }
.step-r1 { border-left-color: var(--accent-gold); }

.step-head {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.step-badge {
  font-size: 0.7rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.08);
}

.step-qwen .step-badge { color: var(--accent-green); }
.step-v3 .step-badge { color: var(--accent-cyan); }
.step-r1 .step-badge { color: var(--accent-gold); }

.step-body {
  font-size: 0.85rem;
  color: var(--text-main);
  line-height: 1.6;
  white-space: pre-line;
}