/* ============================================================
   Base — Dark Technical Interface (Tremayne Performance)
   Unified design system matching DFA A1 Ramp Test PWA
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-base: #0e0f12;
  --bg-elevated: #141620;
  --bg-card: rgba(22, 24, 32, 0.85);
  --bg-input: rgba(16, 18, 26, 0.9);
  --accent: #3b82f6;
  --accent-dim: rgba(59, 130, 246, 0.15);
  --accent-glow: rgba(59, 130, 246, 0.25);
  --text-primary: #e5e7eb;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;
  --text-dim: #4b5563;
  --border: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(255, 255, 255, 0.1);
  --radius: 12px;
  --radius-sm: 8px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  overflow-x: hidden;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg-base);
  color: #d1d5db;
  line-height: 1.55;
  padding: 0;
  overflow-x: hidden;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 20px 40px;
}

/* Global table containment */
table {
  width: 100%;
  table-layout: fixed;
  border-collapse: collapse;
}
table td, table th {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Global input containment */
input, select, textarea, button {
  max-width: 100%;
}

/* ============================================================
   Top Navigation Bar
   ============================================================ */
.top-nav {
  background: rgba(14, 15, 18, 0.97);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 200;
  padding: 0 20px;
}
.top-nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  height: 48px;
  gap: 1.5rem;
}
.top-nav-brand {
  text-decoration: none;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.top-nav-logo {
  height: 28px;
  width: auto;
}
.top-nav-links {
  display: flex;
  gap: 0.25rem;
  flex: 1;
}
.top-nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}
.top-nav-links a:hover {
  color: var(--text-primary);
  background: var(--accent-dim);
}
.top-nav-links a.active {
  color: var(--accent);
  background: var(--accent-dim);
}
.top-nav-logout {
  background: none;
  border: 1px solid var(--border-accent);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
  flex-shrink: 0;
}
.top-nav-logout:hover {
  color: #ef4444;
  border-color: #ef4444;
}

/* ============================================================
   Admin — Stats Grid
   ============================================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0.75rem;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1rem;
  text-align: center;
}
.stat-value {
  font-family: 'Montserrat', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ============================================================
   Admin — Tabs
   ============================================================ */
.admin-tabs {
  display: flex;
  gap: 0.25rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}
.admin-tab {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.6rem 1rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.2s, border-color 0.2s;
}
.admin-tab:hover { color: var(--text-primary); }
.admin-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ============================================================
   Admin — Tables
   ============================================================ */
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
  table-layout: auto;
}
.admin-table th {
  text-align: left;
  padding: 0.6rem 0.5rem;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.admin-table td {
  padding: 0.55rem 0.5rem;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.admin-table tbody tr:hover {
  background: var(--accent-dim);
}
.admin-table.compact td,
.admin-table.compact th {
  padding: 0.35rem 0.4rem;
  font-size: 0.75rem;
}
.clickable-row { cursor: pointer; }
.empty-msg {
  text-align: center;
  color: var(--text-muted);
  padding: 2rem;
  font-size: 0.85rem;
}

/* ============================================================
   Admin — Badges
   ============================================================ */
.badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  text-transform: capitalize;
}
.badge-coach { background: var(--accent-dim); color: var(--accent); }
.badge-athlete { background: rgba(34,197,94,0.12); color: #22c55e; }
.badge-yes { background: rgba(34,197,94,0.12); color: #22c55e; }
.badge-no { background: rgba(239,68,68,0.1); color: #ef4444; }
.badge-bike { background: var(--accent-dim); color: var(--accent); }
.badge-run { background: rgba(249,115,22,0.12); color: #f97316; }
.badge-good { background: rgba(34,197,94,0.12); color: #22c55e; }
.badge-moderate { background: rgba(249,115,22,0.12); color: #f97316; }
.badge-poor { background: rgba(239,68,68,0.1); color: #ef4444; }

/* ============================================================
   Admin — Modal
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  padding: 1rem;
}
.modal-content {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 720px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 {
  font-family: 'Montserrat', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}
.modal-close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
  padding: 0 0.25rem;
}
.modal-close-btn:hover { color: var(--text-primary); }
.modal-body {
  padding: 1.25rem;
  overflow-y: auto;
}

/* Detail grid inside modal */
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.6rem;
}
.detail-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.detail-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.detail-value {
  font-size: 0.85rem;
  color: var(--text-primary);
}
.detail-pre {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ============================================================
   Header — Sticky bar matching ramp tool
   ============================================================ */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: rgba(14, 15, 18, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 48px;  /* below top-nav */
  z-index: 100;
  margin: 0 -20px 20px;
  text-align: left;
}
header h1 {
  font-family: 'Montserrat', 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.header-subtitle {
  font-family: 'Inter', sans-serif;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
  display: block;
  margin-top: 2px;
}
.subtitle {
  margin-top: 0.4rem;
  color: #6b7280;
  font-size: 0.88rem;
  max-width: 600px;
}

/* ============================================================
   Upload Grid
   ============================================================ */
.upload-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
  align-items: stretch;
}
@media (max-width: 640px) {
  .upload-grid { grid-template-columns: 1fr; }
}

.upload-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.upload-card:hover {
  border-color: rgba(39, 98, 214, 0.25);
  box-shadow: 0 0 24px 2px rgba(39, 98, 214, 0.08);
}
.upload-card .drop-zone {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.sport-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #222;
}
.sport-run-header  { border-bottom-color: #22c55e; }
.sport-bike-header { border-bottom-color: #3b82f6; }

.sport-header h2 {
  font-family: 'Montserrat', 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Drop zone */
.drop-zone {
  border: 2px dashed #444;
  border-radius: 8px;
  padding: 1.4rem 1rem;
  text-align: center;
  cursor: pointer;
  background: #12141a;
  transition: border-color 0.2s, background 0.2s;
  outline: none;
  min-height: 140px;
}
.drop-zone:hover, .drop-zone:focus, .drop-zone.drag-over {
  border-color: #2762d6;
  background: #1a1f2e;
  box-shadow: 0 0 20px 2px rgba(39, 98, 214, 0.12);
}
.drop-label   { font-size: 0.9rem; color: #9ca3af; }
.drop-sub     { font-size: 0.78rem; color: #555; margin-top: 0.2rem; }

.file-name {
  font-size: 0.8rem;
  color: #9ca3af;
  word-break: break-all;
}

.btn-primary {
  padding: 0.6rem 1.8rem;
  font-family: 'Montserrat', 'Inter', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, #2762d6, #3b82f6);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background 0.2s, opacity 0.2s, box-shadow 0.3s;
  align-self: flex-start;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.btn-primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #1e4fc0, #2563eb);
  box-shadow: 0 0 20px 3px rgba(39, 98, 214, 0.35);
}
.btn-primary:disabled { opacity: 0.35; cursor: default; }

/* ============================================================
   Status & Warnings
   ============================================================ */
.status-bar {
  padding: 0.55rem 0.9rem;
  border-radius: 6px;
  font-size: 0.84rem;
}
.status-info  { background: #1a2332; color: #60a5fa; border: 1px solid #1e3a5f; }
.status-error { background: #2a1515; color: #f87171; border: 1px solid #5f1e1e; }

.warnings-bar {
  background: #2a2210;
  border: 1px solid #5f4b1e;
  border-radius: 6px;
  padding: 0.6rem 0.9rem;
  font-size: 0.82rem;
  color: #fbbf24;
  margin-bottom: 0.8rem;
}
.warnings-bar p { margin: 0.15rem 0; }

/* ============================================================
   Sport Results Section
   ============================================================ */
.sport-section {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.sport-section-title {
  font-family: 'Montserrat', 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid #1e2028;
}
.sport-run-title  { border-bottom-color: #22c55e; }
.sport-bike-title { border-bottom-color: #3b82f6; }

/* ============================================================
   Meta Chips
   ============================================================ */
.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0.3rem 0 0.8rem;
}
.meta-chip {
  font-size: 0.73rem;
  background: #1e2028;
  color: #9ca3af;
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
  border: 1px solid #1e2028;
}
.meta-chip.source-hrv    { background: #0f2918; color: #4ade80; border-color: #1a4028; }
.meta-chip.source-record { background: #2a2210; color: #fbbf24; border-color: #3a3218; }
.meta-chip.artifact-chip { background: #1a1a2a; color: #818cf8; border-color: #2a2a3a; }

/* ============================================================
   Section Titles
   ============================================================ */
.section-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: #e5e7eb;
  margin: 1.2rem 0 0.35rem;
}
.chart-desc {
  font-size: 0.78rem;
  color: #555;
  margin-bottom: 0.6rem;
}

/* ============================================================
   Threshold Cards
   ============================================================ */
.threshold-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
}
@media (max-width: 480px) {
  .threshold-cards { grid-template-columns: 1fr; }
}

.card {
  background: rgba(26, 28, 36, 0.9);
  border-radius: 10px;
  padding: 0.9rem 1.1rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-left: 4px solid #1e2028;
  backdrop-filter: blur(8px);
  transition: box-shadow 0.3s;
}
.card:hover {
  box-shadow: 0 0 16px 1px rgba(39, 98, 214, 0.06);
}
.lt1-card { border-left-color: #f97316; }
.lt2-card { border-left-color: #ef4444; }

.card-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #6b7280;
  margin-bottom: 0.3rem;
}
.card-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: #e5e7eb;
}
.card-value.not-found { font-size: 0.9rem; color: #555; font-weight: 400; }
.card-unit  { font-size: 0.75rem; color: #555; margin-top: 0.05rem; margin-bottom: 0.3rem; }
.card-pct-hrmax { color: #f59e0b; font-weight: 600; margin-left: 0.3rem; }
.card-wkg { font-size: 0.72rem; font-weight: 600; color: #38bdf8; margin-left: 0.4rem; }
.card-note  { font-size: 0.72rem; color: #444; margin-top: 0.2rem; }
.card-range {
  font-size: 0.7rem;
  color: #4b5563;
  margin-top: 0.25rem;
  font-style: italic;
  letter-spacing: 0.01em;
}
/* Confidence precision badges */
.card-conf {
  font-size: 0.6rem;
  font-weight: 600;
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  margin-left: 0.5rem;
  letter-spacing: 0.02em;
  vertical-align: middle;
  text-transform: none;
}
.conf-high { background: rgba(34, 197, 94, 0.15); color: #22c55e; }
.conf-good { background: rgba(56, 189, 248, 0.15); color: #38bdf8; }
.conf-mod  { background: rgba(251, 191, 36, 0.15); color: #fbbf24; }
.conf-low  { background: rgba(239, 68, 68, 0.12); color: #ef4444; }

.card-range-ref {
  font-size: 0.62rem;
  color: #374151;
  margin-top: 0.6rem;
  font-style: italic;
  text-align: right;
  opacity: 0.6;
}
.card-proximity {
  font-size: 0.75rem;
  color: #9ca3af;
  margin-top: 0.2rem;
}
.card-method {
  font-size: 0.72rem;
  font-weight: 600;
  margin-top: 0.3rem;
  padding: 0.1rem 0.45rem;
  border-radius: 999px;
  display: inline-block;
}
.method-regression { background: #1a2540; color: #60a5fa; }
.method-cluster    { background: #2a2210; color: #fbbf24; }

/* ============================================================
   Insights Panel
   ============================================================ */
.insights-panel {
  background: #151520;
  border: 1px solid #252540;
  border-radius: 10px;
  padding: 1rem 1.2rem;
  margin-top: 1rem;
}

.insights-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: #818cf8;
  margin-bottom: 0.6rem;
}

.insight-chips-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: 0.8rem;
}
.insight-chip {
  font-size: 0.73rem;
  font-weight: 600;
  border-radius: 999px;
  padding: 0.18rem 0.7rem;
  background: #1e2028;
  color: #9ca3af;
  border: 1px solid #1e2028;
}
.ratio-chip.ratio-elite         { background: #0f2918; color: #4ade80; border-color: #1a4028; }
.ratio-chip.ratio-very-strong   { background: #0f2918; color: #34d399; border-color: #1a4028; }
.ratio-chip.ratio-good          { background: #1a2540; color: #60a5fa; border-color: #253560; }
.ratio-chip.ratio-developing    { background: #2a2210; color: #fbbf24; border-color: #3a3218; }
.ratio-chip.ratio-early-stage   { background: #2a1515; color: #f87171; border-color: #5f1e1e; }
.ratio-chip.ratio-insufficient-data { background: #161820; color: #555; }
.decline-chip.decline-gradual   { background: #0f2918; color: #4ade80; border-color: #1a4028; }
.decline-chip.decline-moderate  { background: #2a2210; color: #fbbf24; border-color: #3a3218; }
.decline-chip.decline-steep     { background: #2a1515; color: #f87171; border-color: #5f1e1e; }
.spread-chip { background: #1f1530; color: #a78bfa; border-color: #352560; }

.swrl-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
}
@media (max-width: 560px) {
  .swrl-grid { grid-template-columns: 1fr; }
}

.insight-block {
  background: #161820;
  border-radius: 8px;
  padding: 0.7rem 0.8rem;
  border-top: 2px solid #1e2028;
}
.strengths-block       { border-top-color: #22c55e; }
.weaknesses-block      { border-top-color: #f97316; }
.recommendations-block { border-top-color: #3b82f6; }
.event-block           { border-top-color: #8b5cf6; }

.insight-block h4 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #6b7280;
  margin-bottom: 0.4rem;
}
.insight-block ul {
  list-style: none;
  padding: 0;
}
.insight-block ul li {
  font-size: 0.82rem;
  color: #d1d5db;
  padding: 0.2rem 0;
  border-bottom: 1px solid #222;
  line-height: 1.4;
}
.insight-block ul li:last-child { border-bottom: none; }

.event-profile-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: #a78bfa;
  margin-bottom: 0.3rem;
}
.event-profile-desc {
  font-size: 0.8rem;
  color: #6b7280;
}

/* Profile cards grid */
.profile-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.8rem;
  margin-top: 0.5rem;
}
@media (max-width: 640px) {
  .profile-cards-grid { grid-template-columns: 1fr; }
}
.profile-card {
  background: rgba(26, 28, 36, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 10px;
  overflow: hidden;
  margin-top: 0.8rem;
  backdrop-filter: blur(8px);
  transition: box-shadow 0.3s;
}
.profile-card:hover {
  box-shadow: 0 0 16px 1px rgba(39, 98, 214, 0.06);
}
.profile-card:first-child,
.profile-cards-grid .profile-card,
.sw-cards-grid .profile-card { margin-top: 0; }
.profile-card-wide {
  margin-top: 0.8rem;
}
.profile-card-header {
  padding: 0.5rem 0.9rem;
  border-bottom: 1px solid #252540;
  background: #15161e;
}
.profile-card-title {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #6b7280;
}
.profile-card-body {
  padding: 0.75rem 0.9rem;
}
.profile-card-warn {
  border-color: rgba(245,158,11,0.25);
}
.profile-card-warn .profile-card-body { padding: 0.6rem 0.9rem; }

/* Classification card */
.ramp-ceiling-flag {
  background: rgba(239,68,68,0.15);
  color: #f87171;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  border: 1px solid rgba(239,68,68,0.3);
  margin-top: 0.3rem;
}

/* Development level card */
.ramp-dev-level-label {
  font-size: 1.1rem;
  font-weight: 700;
  color: #a78bfa;
  margin-bottom: 0.25rem;
}
.ramp-dev-level-note {
  font-size: 0.78rem;
  color: #9ca3af;
  line-height: 1.4;
}

/* Race pace bands */
.ramp-pace-bands { margin-top: 0; }
.pace-bands-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.78rem;
}
.pace-bands-table th {
  text-align: left;
  color: #6b7280;
  font-weight: 500;
  padding: 0.35rem 0.6rem;
  border-bottom: 1px solid #252540;
}
.pace-bands-table td {
  color: #d1d5db;
  padding: 0.35rem 0.6rem;
  border-bottom: 1px solid #1e1e30;
}
.pace-bands-table tr:last-child td { border-bottom: none; }

/* Strengths / Weaknesses cards — side by side */
.sw-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.8rem;
  margin-top: 0.8rem;
}
.sw-cards-grid[hidden] { display: none !important; }
@media (max-width: 640px) {
  .sw-cards-grid { grid-template-columns: 1fr; }
}
.sw-card {
  margin-top: 0 !important;
}
.sw-strengths {
  border-left: 4px solid #22c55e;
}
.sw-weaknesses {
  border-left: 4px solid #ef4444;
}
.sw-header-strengths {
  border-bottom: 1px solid rgba(34,197,94,0.2);
  background: rgba(34,197,94,0.05);
}
.sw-header-weaknesses {
  border-bottom: 1px solid rgba(239,68,68,0.2);
  background: rgba(239,68,68,0.05);
}
.sw-header-strengths .profile-card-title { color: #4ade80; }
.sw-header-weaknesses .profile-card-title { color: #f87171; }
.sw-list {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.sw-item {
  background: #12131a;
  border-radius: 6px;
  padding: 0.55rem 0.8rem;
  font-size: 0.8rem;
  color: #d1d5db;
  line-height: 1.45;
}
.sw-item-strength { border-left: 3px solid #22c55e; }
.sw-item-weakness { border-left: 3px solid #ef4444; }
.sw-empty {
  color: #555;
  font-style: italic;
  border-left: 3px solid #333;
}

/* Training Recommendations card */
.training-rec-card {
  border-left: 4px solid #3b82f6;
}
.training-rec-header {
  border-bottom: 1px solid rgba(59,130,246,0.2);
  background: rgba(59,130,246,0.05);
}
.training-rec-header .profile-card-title {
  color: #60a5fa;
}
.training-rec-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.training-rec-item {
  background: #12131a;
  border-radius: 6px;
  padding: 0.55rem 0.8rem;
  font-size: 0.8rem;
  color: #d1d5db;
  line-height: 1.45;
  border-left: 3px solid #3b82f6;
}

/* Protocol Visual Bar */
.protocol-visual-wrapper {
  margin-top: 0.8rem;
}
.protocol-bar {
  display: flex;
  height: 38px;
  border-radius: 6px;
  overflow: hidden;
  background: #12131a;
  border: 1px solid #252540;
  margin-top: 0.5rem;
}
.protocol-seg {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  font-weight: 600;
  color: #e5e7eb;
  border-right: 1px solid rgba(255,255,255,0.06);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  padding: 0 2px;
  cursor: default;
  position: relative;
}
.protocol-seg:last-child { border-right: none; }
.protocol-seg-warmup   { background: rgba(59,130,246,0.20); color: #93c5fd; }
.protocol-seg-ramp     { background: rgba(139,92,246,0.18); color: #c4b5fd; }
.protocol-seg-ramp-alt { background: rgba(139,92,246,0.28); color: #c4b5fd; }
.protocol-seg-recovery { background: rgba(34,197,94,0.18); color: #86efac; }
.protocol-seg-tte      { background: rgba(239,68,68,0.22); color: #fca5a5; }
.protocol-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.35rem;
  font-size: 0.65rem;
  color: #6b7280;
}
.protocol-legend-item {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.protocol-legend-swatch {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  display: inline-block;
}

/* Warnings */
.ramp-profile-warnings { }
.ramp-profile-warning {
  font-size: 0.78rem;
  color: #d97706;
  padding: 0.3rem 0;
  border-bottom: 1px solid #2a2210;
}
.ramp-profile-warning:last-child { border-bottom: none; }

/* ============================================================
   Charts
   ============================================================ */
.charts-details {
  margin-top: 1rem;
}
.charts-summary {
  font-size: 0.88rem;
  font-weight: 600;
  color: #9ca3af;
  cursor: pointer;
  user-select: none;
  padding: 0.4rem 0;
  list-style: none;
}
.charts-summary::-webkit-details-marker { display: none; }
.charts-summary::before { content: '\25B6\FE0E\2002'; font-size: 0.7em; }
details[open] .charts-summary::before { content: '\25BC\FE0E\2002'; }

.chart-container {
  position: relative;
  height: 300px;
  background: #161820;
  border-radius: 8px;
  padding: 0.7rem;
  border: 1px solid #1e2028;
  margin-bottom: 0.4rem;
}

/* ============================================================
   Combined Profile Section
   ============================================================ */
.profile-section {
  background: #161820;
  border-radius: 10px;
  padding: 1.4rem 1.5rem;
  margin-bottom: 1.6rem;
  border: 1px solid #1e2028;
  border-top: 3px solid #8b5cf6;
}

.profile-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #e5e7eb;
  margin-bottom: 0.9rem;
}

.archetype-row {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.archetype-badge {
  font-size: 0.95rem;
  font-weight: 700;
  padding: 0.35rem 1rem;
  border-radius: 999px;
  white-space: nowrap;
}
.archetype-diesel    { background: #0f2918; color: #4ade80; }
.archetype-allround  { background: #1a2540; color: #60a5fa; }
.archetype-run-spec  { background: #0f2918; color: #34d399; }
.archetype-bike-spec { background: #102a40; color: #38bdf8; }
.archetype-building  { background: #2a2210; color: #fbbf24; }
.archetype-developing{ background: #2a1515; color: #f87171; }

.archetype-desc {
  font-size: 0.85rem;
  color: #6b7280;
  max-width: 500px;
  padding-top: 0.3rem;
}

/* Comparison table */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
  margin-bottom: 1rem;
}
.comparison-table th {
  background: #1a1c24;
  font-weight: 700;
  text-align: left;
  padding: 0.5rem 0.8rem;
  color: #9ca3af;
  border-bottom: 2px solid #1e2028;
}
.comparison-table td {
  padding: 0.45rem 0.8rem;
  border-bottom: 1px solid #222;
  color: #d1d5db;
  vertical-align: top;
}
.comparison-table tr:last-child td { border-bottom: none; }
.comparison-table td:first-child   { font-weight: 600; color: #6b7280; white-space: nowrap; }

.aerobic-balance {
  background: #0f2918;
  border-left: 3px solid #22c55e;
  border-radius: 0 6px 6px 0;
  padding: 0.6rem 0.9rem;
  font-size: 0.84rem;
  color: #4ade80;
  margin-bottom: 1rem;
}

.profile-recommendations h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #6b7280;
  margin-bottom: 0.5rem;
}
.profile-recommendations ul {
  list-style: none;
  padding: 0;
}
.profile-recommendations ul li {
  font-size: 0.84rem;
  color: #d1d5db;
  padding: 0.25rem 0;
  border-bottom: 1px solid #222;
  line-height: 1.4;
}
.profile-recommendations ul li:last-child { border-bottom: none; }

/* ============================================================
   Footer
   ============================================================ */
footer {
  margin-top: 2.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-dim);
}
footer p        { margin-bottom: 0.4rem; }
footer strong   { color: #555; }

/* ============================================================
   Athlete Info Section
   ============================================================ */
.athlete-section {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: relative;
  overflow: visible;
  z-index: 10;
  transition: border-color 0.3s var(--ease);
}
.athlete-section:hover {
  border-color: var(--border-accent);
}
.athlete-section-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.8rem;
}
.athlete-section-header h2 {
  font-family: 'Montserrat', 'Inter', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  color: #ffffff;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.athlete-section-tag {
  font-family: 'Inter', sans-serif;
  font-size: 0.68rem;
  font-weight: 500;
  color: #60a5fa;
  background: rgba(39, 98, 214, 0.12);
  border: 1px solid rgba(39, 98, 214, 0.2);
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
  letter-spacing: 0.03em;
}
.athlete-inputs {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
}
.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  position: relative;
}
.input-group label {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  font-weight: 500;
  color: #6b7280;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.input-group input[type="text"],
.input-group input[type="number"] {
  font-family: 'Inter', sans-serif;
  padding: 0.5rem 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  font-size: 0.85rem;
  color: #e5e7eb;
  background: rgba(14, 15, 18, 0.7);
  width: 170px;
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}
.input-group input:focus {
  outline: none;
  border-color: #2762d6;
  background: rgba(22, 24, 32, 0.9);
  box-shadow: 0 0 0 3px rgba(39, 98, 214, 0.15);
}
.input-group input::placeholder {
  color: #4b5563;
  font-weight: 400;
}
/* Hide number input spinners */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
input[type="number"] {
  -moz-appearance: textfield;
}
/* Run protocol inputs side-by-side */
.run-protocol-row {
  display: flex;
  flex-direction: row;
  align-items: flex-end;
  gap: 0.6rem;
  flex-wrap: wrap;
}
.athlete-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(22, 24, 32, 0.98);
  border: 1px solid rgba(39, 98, 214, 0.3);
  border-radius: 10px;
  max-height: 220px;
  overflow-y: auto;
  z-index: 9999;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6), 0 0 16px rgba(39, 98, 214, 0.1);
  backdrop-filter: blur(16px);
  margin-top: 4px;
}
.athlete-dropdown-item {
  font-family: 'Inter', sans-serif;
  padding: 0.5rem 0.75rem;
  font-size: 0.84rem;
  color: #d1d5db;
  cursor: pointer;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  transition: background 0.15s;
}
.athlete-dropdown-item:last-child { border-bottom: none; }
.athlete-dropdown-item:hover,
.athlete-dropdown-item.active {
  background: rgba(39, 98, 214, 0.2);
  color: #ffffff;
}
.history-row-clickable { cursor: pointer; }
.history-row-clickable:hover { background: rgba(139,92,246,0.12); }
.input-group-inline {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.8rem;
}
.input-group-inline label {
  font-size: 0.72rem;
  font-weight: 600;
  color: #6b7280;
  white-space: nowrap;
}
.input-group-inline input {
  padding: 0.3rem 0.5rem;
  border: 1.5px solid #1e2028;
  border-radius: 6px;
  font-size: 0.78rem;
  color: #e5e7eb;
  background: #12141a;
  width: 80px;
  transition: border-color 0.15s;
}
.input-group-inline input:focus {
  outline: none;
  border-color: #8b5cf6;
  background: #161820;
}
.input-tooltip {
  cursor: help;
  color: #555;
  font-size: 0.8rem;
}
.checkbox-group { justify-content: flex-end; }
.checkbox-label {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  color: #9ca3af;
  cursor: pointer;
}

/* ============================================================
   Physiological Profile — HR Gauge
   ============================================================ */
.profile-heading {
  color: #818cf8;
  margin-top: 1.4rem;
}

.hr-gauge-wrapper {
  margin: 0.6rem 0 1rem;
  user-select: none;
}
.gauge-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: #6b7280;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.4rem;
}
.hr-gauge-bar {
  position: relative;
  display: flex;
  height: 24px;
  border-radius: 4px;
  overflow: visible;
}
.gauge-zone { height: 100%; }
.gauge-zone-easy     { background: #166534; border-radius: 4px 0 0 4px; }
.gauge-zone-moderate { background: #854d0e; }
.gauge-zone-hard     { background: #991b1b; border-radius: 0 4px 4px 0; }
.gauge-marker {
  position: absolute;
  top: -3px;
  bottom: -3px;
  width: 2px;
  transform: translateX(-50%);
  pointer-events: none;
}
.gauge-lt1-marker { background: #f97316; }
.gauge-lt2-marker { background: #ef4444; }
.gauge-pin {
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%);
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: inherit;
}
.gauge-labels-row {
  position: relative;
  height: 38px;
  margin-top: 3px;
  font-size: 0.72rem;
}
.gauge-label-zero  { position: absolute; left: 0; color: #555; }
.gauge-label-hrmax { position: absolute; right: 0; text-align: right; color: #9ca3af; font-weight: 600; }
.gauge-label-lt1 {
  position: absolute;
  transform: translateX(-50%);
  text-align: center;
  line-height: 1.3;
  font-weight: 600;
}
.gauge-label-lt2 {
  position: absolute;
  transform: translateX(-50%);
  text-align: center;
  line-height: 1.3;
  font-weight: 600;
}
.gauge-label-lt1-clr { color: #fb923c; }
.gauge-label-lt2-clr { color: #f87171; }
.gauge-label-lt1 small, .gauge-label-lt2 small { font-size: 0.65rem; color: #555; font-weight: 400; }

.gauge-legend {
  display: flex;
  gap: 0.8rem;
  margin-top: 0.2rem;
  font-size: 0.7rem;
  color: #555;
}
.legend-easy  { color: #4ade80; }
.legend-mod   { color: #fbbf24; }
.legend-hard  { color: #f87171; }

/* ============================================================
   %HRmax Metrics Grid
   ============================================================ */
.pct-metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.6rem;
  margin-bottom: 0.8rem;
}
@media (max-width: 700px) {
  .pct-metrics-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 440px) {
  .pct-metrics-grid { grid-template-columns: 1fr; }
}

.pct-card {
  background: #1a1c24;
  border-radius: 8px;
  padding: 0.7rem 0.8rem;
  border-top: 2px solid #1e2028;
}
.pct-lt1      { border-top-color: #f97316; }
.pct-lt2      { border-top-color: #ef4444; }
.pct-gap      { border-top-color: #8b5cf6; }
.pct-headroom { border-top-color: #3b82f6; }

.pct-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #6b7280;
  margin-bottom: 0.2rem;
}
.pct-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: #e5e7eb;
  line-height: 1.1;
}
.pct-subvalue {
  font-size: 0.73rem;
  color: #6b7280;
  margin-top: 0.1rem;
  margin-bottom: 0.2rem;
}

.pct-class {
  font-size: 0.7rem;
  font-weight: 700;
  border-radius: 999px;
  display: inline-block;
  padding: 0.1rem 0.5rem;
  margin: 0.15rem 0;
}
.pct-class-underdeveloped { background: #2a1515; color: #f87171; }
.pct-class-developing     { background: #2a2210; color: #fbbf24; }
.pct-class-well-developed { background: #1a2540; color: #60a5fa; }
.pct-class-strong         { background: #0f2918; color: #4ade80; }
.pct-class-elite          { background: #0f2918; color: #34d399; border: 1px solid #1a4028; }
.pct-class-low            { background: #2a1515; color: #f87171; }
.pct-class-good           { background: #1a2540; color: #60a5fa; }
.pct-class-very-wide      { background: #2a1515; color: #f87171; }
.pct-class-wide           { background: #2a2210; color: #fbbf24; }
.pct-class-moderate       { background: #1a2540; color: #60a5fa; }
.pct-class-narrow         { background: #0f2918; color: #4ade80; }
.pct-class-very-narrow    { background: #0f2918; color: #34d399; }
.pct-class-large          { background: #2a1515; color: #f87171; }
.pct-class-small          { background: #1a2540; color: #60a5fa; }
.pct-class-very-small     { background: #0f2918; color: #4ade80; }

.pct-meaning {
  font-size: 0.72rem;
  color: #555;
  line-height: 1.4;
  margin-top: 0.25rem;
}

/* ============================================================
   Profile Description
   ============================================================ */
.profile-description {
  background: #1a1c24;
  border-radius: 8px;
  padding: 0.8rem 1rem;
  margin: 0.8rem 0;
  font-size: 0.85rem;
  color: #9ca3af;
  line-height: 1.5;
}

/* ============================================================
   Flags
   ============================================================ */
.flags-section {
  margin-bottom: 0.8rem;
}
.flag-item {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  padding: 0.55rem 0.8rem;
  border-radius: 6px;
  margin-bottom: 0.4rem;
  font-size: 0.8rem;
}
.flag-error   { background: #2a1515; border: 1px solid #5f1e1e; }
.flag-warning { background: #2a2210; border: 1px solid #5f4b1e; }
.flag-info    { background: #1a2332; border: 1px solid #1e3a5f; }

.flag-title { font-weight: 700; margin-bottom: 0.15rem; }
.flag-title + .flag-message, .flag-message { color: #9ca3af; line-height: 1.4; }
.flag-error .flag-title   { color: #f87171; }
.flag-warning .flag-title { color: #fbbf24; }
.flag-info .flag-title    { color: #60a5fa; }

/* ============================================================
   Limiter + Prescription
   ============================================================ */
.limiter-section {
  background: #151520;
  border: 1px solid #252540;
  border-radius: 10px;
  padding: 0.9rem 1.1rem;
  margin-bottom: 0.8rem;
}
.limiter-header { margin-bottom: 0.6rem; }
.limiter-label-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.3rem;
}
.limiter-title-text {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #6b7280;
}
.limiter-badge {
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
}
.limiter-critical { background: #2a1515; color: #f87171; }
.limiter-moderate { background: #2a2210; color: #fbbf24; }
.limiter-low      { background: #0f2918; color: #4ade80; }

.limiter-severity {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.12rem 0.4rem;
  border-radius: 4px;
}
.sev-critical { background: #2a1515; color: #f87171; }
.sev-moderate { background: #2a2210; color: #fbbf24; }
.sev-low      { background: #0f2918; color: #4ade80; }

.limiter-statement { font-size: 0.83rem; color: #9ca3af; }

.secondary-limiter {
  font-size: 0.8rem;
  color: #6b7280;
  padding: 0.4rem 0;
  border-top: 1px solid #252540;
  margin-top: 0.4rem;
}
.secondary-limiter-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.08rem 0.45rem;
  border-radius: 999px;
}
.secondary-limiter-desc { font-size: 0.78rem; color: #555; }

.prescription-details {
  margin-top: 0.7rem;
  background: #161820;
  border-radius: 6px;
  border: 1px solid #1e2028;
}
.prescription-summary {
  padding: 0.55rem 0.9rem;
  font-size: 0.84rem;
  font-weight: 700;
  color: #818cf8;
  cursor: pointer;
  list-style: none;
}
.prescription-summary::-webkit-details-marker { display: none; }
.prescription-summary::before { content: '\25B6\FE0E\2002'; font-size: 0.7em; }
details[open] .prescription-summary::before { content: '\25BC\FE0E\2002'; }

.prescription-body {
  padding: 0 0.9rem 0.9rem;
}
.prescription-summary-text {
  font-size: 0.82rem;
  color: #9ca3af;
  font-style: italic;
  margin-bottom: 0.6rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid #222;
}
.prescription-body h5 {
  font-size: 0.73rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #6b7280;
  margin: 0.6rem 0 0.3rem;
}
.prescription-list {
  list-style: none;
  padding: 0;
}
.prescription-list li {
  font-size: 0.82rem;
  color: #d1d5db;
  padding: 0.25rem 0 0.25rem 1rem;
  border-bottom: 1px solid #222;
  position: relative;
  line-height: 1.4;
}
.prescription-list li:last-child { border-bottom: none; }
.prescription-list li::before { content: '\2192'; position: absolute; left: 0; color: #3b82f6; font-weight: 700; }

.prescription-meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
  margin-top: 0.6rem;
}
@media (max-width: 560px) { .prescription-meta-grid { grid-template-columns: 1fr; } }

.prescription-meta {
  border-radius: 6px;
  padding: 0.55rem 0.7rem;
  font-size: 0.8rem;
  color: #9ca3af;
  line-height: 1.4;
}
.prescription-meta.monitor { background: #0f2918; border-left: 2px solid #22c55e; }
.prescription-meta.avoid   { background: #2a1515; border-left: 2px solid #ef4444; }
.meta-label { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: #6b7280; margin-bottom: 0.2rem; }

.prescription-disclaimer {
  margin-top: 0.6rem;
  font-size: 0.73rem;
  color: #444;
  font-style: italic;
  background: #12141a;
  border-radius: 4px;
  padding: 0.35rem 0.6rem;
}

/* ============================================================
   Zone Prescription Table (Section 3E)
   ============================================================ */
.zone-prescription-section {
  background: #151520;
  border: 1px solid #252540;
  border-radius: 10px;
  padding: 1rem 1.2rem;
  margin: 0.8rem 0;
}

.zone-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
  margin-bottom: 0.8rem;
}
.zone-table th {
  background: #1f1f2f;
  font-weight: 700;
  text-align: left;
  padding: 0.45rem 0.7rem;
  color: #9ca3af;
  border-bottom: 2px solid #1e2028;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.zone-table td {
  padding: 0.4rem 0.7rem;
  border-bottom: 1px solid #222;
  color: #d1d5db;
}
.zone-table tr:last-child td { border-bottom: none; }

.volume-input-row {
  display: flex;
  align-items: flex-end;
  gap: 0.6rem;
  margin-top: 0.6rem;
}
.btn-apply-volume {
  padding: 0.4rem 1rem;
  font-size: 0.82rem;
}
.volume-hint {
  font-size: 0.78rem;
  color: #555;
  margin-top: 0.3rem;
}
.coaching-note {
  background: #1a2540;
  border-left: 3px solid #3b82f6;
  border-radius: 0 6px 6px 0;
  padding: 0.55rem 0.8rem;
  font-size: 0.82rem;
  color: #93c5fd;
  margin-top: 0.6rem;
  line-height: 1.45;
}

/* ============================================================
   History Delta
   ============================================================ */
.delta-section {
  background: #151520;
  border-radius: 8px;
  border: 1px solid #252540;
  padding: 0.7rem 0.8rem;
  margin-bottom: 0.8rem;
}
.delta-header {
  font-size: 0.75rem;
  font-weight: 700;
  color: #60a5fa;
  margin-bottom: 0.5rem;
}
.delta-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.2rem;
}
.delta-item {
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.delta-key   { color: #6b7280; font-weight: 600; }
.delta-up    { color: #4ade80; font-weight: 700; }
.delta-down  { color: #f87171; font-weight: 700; }
.delta-same  { color: #6b7280; font-weight: 700; }
.delta-na    { color: #444; }
.delta-prev  { font-size: 0.73rem; color: #555; }

/* ============================================================
   Save Button
   ============================================================ */
.save-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-top: 0.4rem;
  margin-bottom: 0.4rem;
}
.btn-save {
  padding: 0.4rem 1rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: #fff;
  background: #7c3aed;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.2s;
}
.btn-save:hover:not(:disabled) { background: #6d28d9; }
.btn-save:disabled { opacity: 0.4; cursor: default; }
.save-confirm {
  font-size: 0.8rem;
  color: #4ade80;
  font-weight: 600;
}

header { position: relative; }

/* ============================================================
   Page Navigation — Integrated Tab Bar
   ============================================================ */
.page-nav {
  display: inline-flex;
  justify-content: center;
  gap: 0;
  margin-top: 0.8rem;
  background: #161820;
  border-radius: 8px;
  padding: 0.25rem;
  border: 1px solid #1e2028;
}
.nav-link {
  font-size: 0.82rem;
  font-weight: 600;
  color: #6b7280;
  text-decoration: none;
  padding: 0.4rem 1.2rem;
  border-radius: 6px;
  border: 1px solid transparent;
  transition: all 0.15s;
}
.nav-link:hover { color: #e5e7eb; background: #1e2028; }
.nav-link.active {
  color: #fff;
  background: #8b5cf6;
  border-color: #8b5cf6;
}

/* ============================================================
   FTP Page — Toggle Section
   ============================================================ */
.toggle-section {
  background: #161820;
  border-radius: 10px;
  padding: 0.8rem 1.2rem;
  margin-bottom: 1.2rem;
  border: 1px solid #1e2028;
}
.toggle-row {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  flex-wrap: wrap;
}
.toggle-group {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.toggle-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #6b7280;
  white-space: nowrap;
}

/* Sport Toggle */
.sport-toggle-bar {
  display: inline-flex;
  gap: 0;
  background: #12141a;
  border-radius: 6px;
  padding: 0.2rem;
  border: 1px solid #1e2028;
}
.sport-toggle-btn {
  padding: 0.35rem 1rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: #6b7280;
  background: transparent;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
}
.sport-toggle-btn:hover { color: #e5e7eb; background: #1e2028; }
.sport-toggle-btn.active {
  color: #fff;
  background: #3b82f6;
}
.sport-toggle-btn[data-sport="running"].active { background: #22c55e; }


/* Mode Toggle */
.mode-toggle-bar {
  display: inline-flex;
  gap: 0;
  background: #12141a;
  border-radius: 6px;
  padding: 0.2rem;
  border: 1px solid #1e2028;
}
.mode-toggle-btn {
  padding: 0.35rem 0.9rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: #6b7280;
  background: transparent;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
}
.mode-toggle-btn:hover { color: #e5e7eb; background: #1e2028; }
.mode-toggle-btn.active {
  color: #e5e7eb;
  background: #1e2028;
}

/* ============================================================
   FTP Page — Sections & Cards
   ============================================================ */
.ftp-section { margin-bottom: 1rem; }

/* ftp-athlete-section uses same purple accent as DFA page */

.ftp-upload-card {
  background: #161820;
  border-radius: 10px;
  padding: 1.2rem;
  border: 1px solid #1e2028;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  max-width: 500px;
  margin: 0 auto;
}

/* Manual entry grid */
.ftp-manual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 640px) {
  .ftp-manual-grid { grid-template-columns: 1fr; }
}

.ftp-effort-card {
  background: #161820;
  border-radius: 10px;
  padding: 1rem 1.2rem;
  border: 1px solid #1e2028;
  border-left: 4px solid #1e2028;
}

.ftp-effort-header {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #6b7280;
  padding-bottom: 0.4rem;
  margin-bottom: 0.7rem;
  border-bottom: none;
}
.ftp-effort-short ~ .ftp-effort-fields,
.ftp-effort-long ~ .ftp-effort-fields { }

/* Card left-border colours based on effort type */
.ftp-manual-grid .ftp-effort-card:first-child { border-left-color: #f97316; }
.ftp-manual-grid .ftp-effort-card:last-child { border-left-color: #3b82f6; }

.ftp-effort-fields {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.ftp-effort-fields .input-group input {
  width: 100%;
}

.ftp-calc-btn {
  margin-top: 0.8rem;
}

/* ============================================================
   FTP Page — Detected Efforts
   ============================================================ */
.ftp-detected-results {
  margin-top: 1rem;
}
.ftp-detect-note {
  font-size: 0.8rem;
  color: #6b7280;
  margin-bottom: 0.8rem;
}
.ftp-detected-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 0.8rem;
}
@media (max-width: 640px) {
  .ftp-detected-grid { grid-template-columns: 1fr; }
}

.ftp-detect-card {
  background: #1a1c24;
  border-radius: 8px;
  padding: 0.8rem 1rem;
  border-left: 4px solid #1e2028;
}
.ftp-detect-cycling-short, .ftp-detect-running-short { border-left-color: #f97316; }
.ftp-detect-cycling-long, .ftp-detect-running-long { border-left-color: #3b82f6; }

.ftp-detect-title {
  font-size: 0.82rem;
  font-weight: 700;
  color: #e5e7eb;
  margin-bottom: 0.5rem;
}

.ftp-detect-not-found {
  font-size: 0.82rem;
  color: #555;
  font-style: italic;
}

.ftp-detect-metric {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  padding: 0.15rem 0;
  border-bottom: 1px solid #1e2028;
}
.ftp-detect-metric:last-child { border-bottom: none; }
.ftp-dm-label { color: #6b7280; }
.ftp-dm-value { color: #e5e7eb; font-weight: 600; }

.ftp-accept-btn { margin-top: 0.5rem; }

/* ============================================================
   FTP Page — Results
   ============================================================ */
/* ftp-results inherits profile-section border-top (purple) */

/* Profile row */
.ftp-profile-row {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.ftp-ratio-display {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.ftp-ratio-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #6b7280;
  margin-bottom: 0.1rem;
}
.ftp-ratio-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: #e5e7eb;
}

.ftp-profile-badge {
  font-size: 1.1rem;
  font-weight: 700;
  padding: 0.5rem 1.5rem;
  border-radius: 999px;
  white-space: nowrap;
}
.ftp-profile-anaerobic { background: #2a1515; color: #f87171; }
.ftp-profile-balanced  { background: #0f2918; color: #4ade80; }
.ftp-profile-aerobic   { background: #1a2540; color: #60a5fa; }

/* Metrics grid */
.ftp-metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.6rem;
  margin-bottom: 1rem;
}

.ftp-metric-card {
  background: #1a1c24;
  border-radius: 8px;
  padding: 0.7rem 0.9rem;
  border-top: 2px solid #1e2028;
}
.ftp-mc-primary { border-top-color: #f97316; }

.ftp-mc-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #6b7280;
  margin-bottom: 0.2rem;
}
.ftp-mc-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: #e5e7eb;
  line-height: 1.1;
}
.ftp-mc-sub {
  font-size: 0.73rem;
  color: #6b7280;
  margin-top: 0.1rem;
}

/* HR insights */
.ftp-hr-insights {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.ftp-hr-insight {
  background: #1a1c24;
  border-radius: 6px;
  padding: 0.55rem 0.8rem;
  font-size: 0.82rem;
  color: #9ca3af;
  border-left: 3px solid #8b5cf6;
  line-height: 1.4;
}

/* Chart */
.ftp-chart-container { height: 250px; }
.ftp-timeline-chart { height: 350px; }

/* Save row */
.ftp-save-row { margin-top: 1rem; }

/* Disclaimer */
.ftp-disclaimer {
  margin-top: 1rem;
  padding: 0.6rem 0.8rem;
  font-size: 0.75rem;
  color: #444;
  font-style: italic;
  background: #12141a;
  border-radius: 6px;
}

/* ===================================================================
   HISTORY PANEL
   =================================================================== */
.history-panel {
  margin-top: 1.5rem;
  border: 1px solid var(--border, #1e2028);
  border-radius: 8px;
  padding: 0.75rem 1rem;
}
.history-summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text-secondary, #9ca3af);
  font-size: 0.95rem;
}
.history-summary:hover { color: var(--text-primary, #e5e7eb); }
.history-table-wrap { overflow-x: auto; }
.history-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  margin-top: 0.75rem;
}
.history-table th,
.history-table td {
  padding: 0.45rem 0.65rem;
  border-bottom: 1px solid var(--border, #1e2028);
  text-align: left;
  white-space: nowrap;
}
.history-table th {
  color: var(--text-secondary, #9ca3af);
  font-weight: 500;
  font-size: 0.78rem;
}
.history-btn-delete {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  color: #ef4444;
  font-size: 1.1rem;
  line-height: 1;
}
.history-btn-delete:hover { background: rgba(239, 68, 68, 0.15); }
.history-btn-reanalyze {
  background: none;
  border: 1px solid var(--accent, #3b82f6);
  cursor: pointer;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  color: var(--accent, #3b82f6);
  font-size: 0.7rem;
  font-weight: 500;
  margin-right: 0.35rem;
  transition: background 0.15s;
}
.history-btn-reanalyze:hover { background: rgba(59, 130, 246, 0.15); }
.history-empty {
  color: var(--text-muted, #6b7280);
  font-style: italic;
  padding: 0.75rem 0;
  font-size: 0.85rem;
}
.history-trend-chart { height: 250px; margin-top: 0.75rem; }


/* ===================================================================
   RAMP TEST PAGE
   =================================================================== */

/* Upload card */
.ramp-upload-section { max-width: 600px; margin: 0 auto; }
.ramp-upload-card .sport-header-sub {
  font-size: 0.75rem; color: rgba(255,255,255,0.7);
  margin: 0.2rem 0 0; font-weight: 400;
}
.file-name-display {
  font-size: 0.82rem; color: #9ca3af; margin: 0.5rem 0;
  font-family: 'SF Mono','Menlo', monospace;
}

/* Segment visualization bar */
.ramp-segment-bar {
  display: flex; height: 40px; border-radius: 6px;
  overflow: hidden; margin-bottom: 0.5rem;
  border: 1px solid #1e2028;
}
.ramp-seg {
  display: flex; align-items: center; justify-content: center;
  font-size: 0.65rem; font-weight: 700; color: #fff;
  min-width: 18px; transition: opacity 0.2s;
}
.ramp-seg:hover { opacity: 0.8; }
.ramp-seg-warmup   { background: #3b82f6; }
.ramp-seg-stage    { background: #8b5cf6; }
.ramp-seg-stage-alt{ background: #7c3aed; }
.ramp-seg-recovery { background: #6b7280; }
.ramp-seg-effort   { background: #ef4444; }
.ramp-seg-cooldown { background: #22c55e; }

/* Segment info row */
.ramp-segment-info {
  display: flex; flex-wrap: wrap; gap: 1rem;
  font-size: 0.78rem; color: #9ca3af; margin-bottom: 0.5rem;
}
.ramp-segment-info strong { color: #e5e7eb; }

/* Manual adjustment */
.ramp-manual-adjust { margin-top: 0.5rem; }
.ramp-adjust-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.5rem; margin: 0.5rem 0;
}
.ramp-adjust-item { display: flex; flex-direction: column; gap: 0.15rem; }
.ramp-adjust-item label { font-size: 0.68rem; color: #6b7280; }
.ramp-adjust-item input {
  background: #161820; border: 1px solid #1e2028; border-radius: 4px;
  padding: 0.3rem 0.5rem; color: #e5e7eb; font-size: 0.82rem;
  font-family: 'SF Mono','Menlo', monospace; width: 100%;
}

/* Three-column threshold cards for ramp */
.ramp-threshold-cards { grid-template-columns: 1fr 1fr 1fr; }

/* Wider chart for session overview */
.chart-container-wide { height: 350px; }

/* Save row */
.btn-save {
  background: #8b5cf6; color: #fff; border: none; border-radius: 6px;
  padding: 0.5rem 1.5rem; font-size: 0.9rem; font-weight: 600;
  cursor: pointer; transition: background 0.2s;
}
.btn-save:hover { background: #7c3aed; }
.save-confirm { color: #22c55e; font-size: 0.85rem; font-weight: 600; }

/* Secondary button */
.btn-secondary {
  background: transparent; color: #9ca3af; border: 1px solid #1e2028;
  border-radius: 6px; padding: 0.35rem 1rem; font-size: 0.8rem;
  cursor: pointer; transition: all 0.2s;
}
.btn-secondary:hover { border-color: #8b5cf6; color: #8b5cf6; }

/* ===================================================================
   RAMP PROTOCOL SUB-TABS (Bike / Run)
   =================================================================== */
.ramp-protocol-toggle {
  display: inline-flex;
  gap: 0;
  background: #12141a;
  border-radius: 6px;
  padding: 0.2rem;
  border: 1px solid #1e2028;
  margin-bottom: 1rem;
}
.ramp-protocol-btn {
  padding: 0.35rem 1.2rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: #6b7280;
  background: transparent;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
}
.ramp-protocol-btn:hover { color: #e5e7eb; background: #1e2028; }
.ramp-protocol-btn.active {
  color: #fff;
  background: #8b5cf6;
}

/* Run protocol input */
.run-protocol-input {
  margin-bottom: 1rem;
}
.run-protocol-input .input-group {
  max-width: 100%;
}

/* Protocol preview table */
.protocol-preview-table {
  width: 100%;
  table-layout: fixed;
  border-collapse: collapse;
  font-size: 0.82rem;
  margin-top: 0.75rem;
}
.protocol-preview-table th {
  color: #9ca3af;
  font-weight: 500;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: 0.45rem 0.65rem;
  border-bottom: 1px solid #1e2028;
  text-align: left;
}
.protocol-preview-table td {
  padding: 0.4rem 0.65rem;
  border-bottom: 1px solid #1e2028;
  color: #d1d5db;
}
.protocol-preview-table tr:last-child td { border-bottom: none; }
.protocol-preview-table .step-highlight {
  color: #8b5cf6;
  font-weight: 600;
}

/* Expected DFA ranges column */
.dfa-range-high { color: #22c55e; }
.dfa-range-transition { color: #fbbf24; }
.dfa-range-low { color: #ef4444; }

/* Unified analyze button row (centered below upload grid) */
.ramp-analyze-row {
  text-align: center;
  margin-bottom: 20px;
}
.ramp-analyze-row .btn-primary {
  padding: 0.6rem 2rem;
  font-size: 0.92rem;
}

/* Protocol preview wrapper (full width, below upload grid) */
.ramp-protocol-preview-wrapper {
  background: #161820;
  border-radius: 10px;
  padding: 1rem 1.2rem;
  border: 1px solid #1e2028;
  margin-bottom: 1rem;
}

/* Responsive */
@media (max-width: 900px) {
  .container { max-width: 100%; padding: 20px 0.5rem 40px; }
  .upload-grid { grid-template-columns: 1fr; }
  .threshold-cards { grid-template-columns: 1fr 1fr; }
  .ramp-threshold-cards { grid-template-columns: 1fr 1fr; }
  .swrl-grid { grid-template-columns: 1fr 1fr; }
  .ftp-manual-grid { grid-template-columns: 1fr; }
  .ftp-detected-grid { grid-template-columns: 1fr; }
  .ftp-metrics-grid { grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); }
}

@media (max-width: 640px) {
  .ramp-threshold-cards { grid-template-columns: 1fr; }
  .threshold-cards { grid-template-columns: 1fr; }
  .swrl-grid { grid-template-columns: 1fr; }
}

/* Ensure all sections stay contained */
section, details, .sport-section, .profile-section, .insights-panel,
.history-panel, .zone-prescription-section, .limiter-section,
.delta-section {
  overflow: hidden;
  max-width: 100%;
}
.athlete-section {
  overflow: visible;
  max-width: 100%;
}

/* Table horizontal scroll wrapper */
.history-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}


/* ===================================================================
   ALL TESTS BOTTOM TAB
   =================================================================== */
.all-tests-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 900;
  background: #16181d;
  border-top: 1px solid #2a2d35;
}
.all-tests-toggle {
  display: block;
  margin: 0 auto;
  background: #1e2028;
  border: 1px solid #2a2d35;
  border-bottom: none;
  color: #9ca3af;
  font-size: 0.78rem;
  font-weight: 600;
  padding: 0.35rem 1.6rem;
  border-radius: 6px 6px 0 0;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: color 0.15s, background 0.15s;
}
.all-tests-toggle:hover {
  color: #e5e7eb;
  background: #252830;
}
.all-tests-panel {
  max-height: 42vh;
  overflow-y: auto;
  padding: 0.5rem 1.2rem 0.75rem;
  -webkit-overflow-scrolling: touch;
}
.all-tests-toolbar {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 0.5rem;
  flex-wrap: wrap;
}
.all-tests-tabs {
  display: flex;
  gap: 0;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid #2a2d35;
}
.all-tests-tab {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  font-weight: 500;
  padding: 0.3rem 0.8rem;
  background: #1e2028;
  color: #9ca3af;
  border: none;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: background 0.2s, color 0.2s;
}
.all-tests-tab:hover { background: #2a2d35; color: #e5e7eb; }
.all-tests-tab.active {
  background: #7c3aed;
  color: #ffffff;
}
.all-tests-filter {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.all-tests-filter label {
  font-size: 0.72rem;
  color: #6b7280;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.all-tests-filter select {
  background: #1e2028;
  border: 1px solid #2a2d35;
  color: #e5e7eb;
  font-size: 0.8rem;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  outline: none;
}
.all-tests-filter select:focus {
  border-color: #7c3aed;
}
.all-tests-count {
  font-size: 0.72rem;
  color: #6b7280;
  margin-left: auto;
}
.all-tests-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.all-tests-table th.sortable {
  cursor: pointer;
  user-select: none;
  transition: color 0.15s;
}
.all-tests-table th.sortable:hover {
  color: #e5e7eb;
}
.all-tests-table th span {
  font-size: 0.65rem;
  color: #7c3aed;
}
/* Quality badge colours */
.qual-excellent { color: #22c55e; }
.qual-good      { color: #3b82f6; }
.qual-acceptable { color: #f59e0b; }
.qual-poor      { color: #ef4444; }

/* Pad main content so fixed bar doesn't overlap */
body { padding-bottom: 40px; }

/* ============================================================
   Export PDF Button
   ============================================================ */
.btn-export-pdf {
  font-family: 'Inter', sans-serif;
  font-size: 0.78rem;
  font-weight: 600;
  color: #e5e7eb;
  background: rgba(39, 98, 214, 0.15);
  border: 1px solid rgba(39, 98, 214, 0.3);
  border-radius: 8px;
  padding: 0.4rem 1rem;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  white-space: nowrap;
}
.btn-export-pdf:hover {
  background: rgba(39, 98, 214, 0.3);
  border-color: #2762d6;
  box-shadow: 0 0 12px 2px rgba(39, 98, 214, 0.15);
}

/* ============================================================
   Modal Overlay
   ============================================================ */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  display: none !important;
  align-items: center;
  justify-content: center;
  z-index: 99999;
}
.modal-overlay.visible {
  display: flex !important;
}
.modal-content {
  background: #161820;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  width: 90%;
  max-width: 520px;
  box-shadow: 0 16px 64px rgba(0, 0, 0, 0.6), 0 0 32px rgba(39, 98, 214, 0.1);
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.modal-title {
  font-family: 'Montserrat', 'Inter', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: #ffffff;
  letter-spacing: 0.03em;
}
.modal-close {
  background: none;
  border: none;
  color: #6b7280;
  font-size: 1.3rem;
  cursor: pointer;
  padding: 0.2rem;
  line-height: 1;
  transition: color 0.2s;
}
.modal-close:hover { color: #e5e7eb; }
.modal-body {
  padding: 1.2rem 1.3rem;
}
.modal-footer {
  display: flex;
  gap: 0.6rem;
  justify-content: flex-end;
  padding: 1rem 1.3rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* ============================================================
   Sport Dashboard Sections (Unified Page)
   ============================================================ */
.sport-dashboard {
  background: rgba(22, 24, 32, 0.65);
  border-radius: 14px;
  padding: 1.4rem;
  margin-bottom: 1.6rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(12px);
  position: relative;
}
.sport-dashboard::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  border-radius: 14px 14px 0 0;
}
.sport-dashboard.sport-cycling::before {
  background: linear-gradient(90deg, #2762d6, transparent);
}
.sport-dashboard.sport-running::before {
  background: linear-gradient(90deg, #22c55e, transparent);
}

.sport-dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.sport-dashboard-title {
  font-family: 'Montserrat', 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.test-type-select {
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  font-weight: 500;
  color: #e5e7eb;
  background: rgba(30, 32, 40, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  padding: 0.4rem 0.8rem;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M3 4.5L6 8l3-3.5H3z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.6rem center;
  padding-right: 2rem;
}
.test-type-select:focus {
  border-color: #2762d6;
  box-shadow: 0 0 12px 2px rgba(39, 98, 214, 0.2);
}
.test-type-select option {
  background: #1e2028;
  color: #e5e7eb;
}

/* ============================================================
   Combined Report Section
   ============================================================ */
.combined-report {
  background: rgba(22, 24, 32, 0.65);
  border-radius: 14px;
  padding: 1.4rem;
  margin-bottom: 1.6rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(12px);
  position: relative;
}
.combined-report::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  border-radius: 14px 14px 0 0;
  background: linear-gradient(90deg, #2762d6, #22c55e, transparent);
}

.combined-report-title {
  font-family: 'Montserrat', 'Inter', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 1rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 640px) {
  .comparison-grid { grid-template-columns: 1fr; }
}

/* Section divider between sport dashboards */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(39, 98, 214, 0.2), transparent);
  margin: 0.5rem 0;
}

/* ============================================================
   Global input focus ring (James Smith electric blue)
   ============================================================ */
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: #2762d6 !important;
  box-shadow: 0 0 0 2px rgba(39, 98, 214, 0.2);
}

/* ============================================================
   Section titles (Montserrat)
   ============================================================ */
.section-title,
.sport-section-title,
.profile-title,
.charts-summary {
  font-family: 'Montserrat', 'Inter', sans-serif;
}

/* ============================================================
   Threshold Interval Prescription
   ============================================================ */
.prescription-section {
  margin-top: 1.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.prescription-title {
  color: #a78bfa !important;
  font-size: 0.92rem !important;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.prescription-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
  margin-top: 0.8rem;
}
@media (max-width: 640px) {
  .prescription-grid { grid-template-columns: repeat(2, 1fr); }
}
.prescription-card {
  background: rgba(22, 24, 32, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 10px;
  padding: 0.8rem 1rem;
  text-align: center;
}
.prescription-card-header {
  font-family: 'Inter', sans-serif;
  font-size: 0.68rem;
  font-weight: 500;
  color: #9ca3af;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.35rem;
}
.prescription-card-value {
  font-family: 'Montserrat', 'Inter', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: #e5e7eb;
  line-height: 1.3;
}
.prescription-card-detail {
  font-size: 0.72rem;
  color: #6b7280;
  margin-top: 0.2rem;
}
.prescription-notes {
  margin-top: 0.6rem;
}
.prescription-note {
  font-size: 0.78rem;
  color: #f59e0b;
  background: rgba(245, 158, 11, 0.08);
  border-radius: 6px;
  padding: 0.4rem 0.7rem;
  margin-top: 0.35rem;
  line-height: 1.4;
}
.prescription-card-estimate {
  border-style: dashed;
  border-color: rgba(255, 255, 255, 0.1);
}
.prescription-card-estimate .prescription-card-header {
  color: #f59e0b;
}