/* ─── Design Tokens ─────────────────────────────────────────────────────────── */
:root {
  --bg:         #0a0e1a;
  --surface:    #111827;
  --surface2:   #1a2235;
  --border:     #1e2d45;
  --gold:       #f59e0b;
  --silver:     #94a3b8;
  --bronze:     #cd7c40;
  --teal:       #06b6d4;
  --teal-dark:  #0891b2;
  --text:       #e2e8f0;
  --text-muted: #64748b;
  --green:      #10b981;
  --red:        #ef4444;
  --amber:      #f59e0b;
  --blue:       #3b82f6;
}

/* ─── Reset ─────────────────────────────────────────────────────────────────── */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, sans-serif;
  min-height: 100vh;
}

/* ─── Header ─────────────────────────────────────────────────────────────────── */
.header {
  background: linear-gradient(135deg, #0c1a2e 0%, #0a1628 50%, #061020 100%);
  border-bottom: 1px solid var(--border);
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.logo { display: flex; align-items: center; gap: 12px; }
.logo-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--teal), #0284c7);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
}
.logo-text h1 {
  font-size: 1.5rem; font-weight: 700;
  background: linear-gradient(90deg, var(--teal), #38bdf8);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.logo-text p { font-size: 0.75rem; color: var(--text-muted); letter-spacing: 0.05em; text-transform: uppercase; }
.comp-select {
  background: var(--surface2); border: 1px solid var(--border);
  color: var(--text); padding: 8px 14px; border-radius: 8px;
  font-size: 0.875rem; cursor: pointer; outline: none;
}
.comp-select:focus { border-color: var(--teal); }

/* ─── Page Nav (Simulator ↔ Predictions) ──────────────────────────────────── */
.page-nav {
  display: flex; gap: 4px; align-items: center;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: 8px; padding: 3px;
}
.page-nav-link {
  padding: 6px 14px; border-radius: 6px;
  font-size: 0.8rem; font-weight: 600;
  text-decoration: none; color: var(--text-muted); transition: all 0.2s; white-space: nowrap;
}
.page-nav-link:hover { color: var(--text); background: rgba(255,255,255,0.05); }
.page-nav-link.active { background: var(--teal); color: #fff; }

/* ─── Controls ───────────────────────────────────────────────────────────────── */
.controls {
  padding: 16px 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
}
.gender-toggle {
  display: flex; background: var(--surface2);
  border-radius: 8px; overflow: hidden; border: 1px solid var(--border);
}
.gender-btn {
  padding: 7px 20px; font-size: 0.875rem; font-weight: 600;
  cursor: pointer; border: none; background: transparent; color: var(--text-muted); transition: all 0.2s;
}
.gender-btn.active { background: var(--teal); color: #fff; }
.category-tabs { display: flex; flex-wrap: wrap; gap: 6px; }
.cat-tab {
  padding: 6px 14px; border-radius: 6px; border: 1px solid var(--border);
  background: transparent; color: var(--text-muted); font-size: 0.8rem;
  cursor: pointer; transition: all 0.2s; font-weight: 500;
}
.cat-tab.active { border-color: var(--teal); color: var(--teal); background: rgba(6,182,212,0.1); }
.dist-btns { display: flex; flex-wrap: wrap; gap: 6px; margin-left: auto; }
.dist-btn {
  padding: 6px 12px; border-radius: 6px; border: 1px solid var(--border);
  background: var(--surface2); color: var(--text-muted); font-size: 0.8rem;
  cursor: pointer; transition: all 0.2s; font-weight: 600;
}
.dist-btn.active {
  background: linear-gradient(135deg, var(--teal), var(--teal-dark));
  border-color: transparent; color: #fff;
}

/* ─── Main Layout ────────────────────────────────────────────────────────────── */
.main { padding: 20px 24px; display: grid; gap: 20px; max-width: 1400px; margin: 0 auto; }

/* ─── Section Titles ─────────────────────────────────────────────────────────── */
.section-title {
  font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--teal); margin-bottom: 14px;
  display: flex; align-items: center; gap: 8px;
}
.section-title::after { content: ''; flex: 1; height: 1px; background: var(--border); }

/* ─── Leaderboard ────────────────────────────────────────────────────────────── */
.leaderboard-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px; overflow: hidden;
}
.leaderboard-header {
  padding: 16px 20px; display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid var(--border);
}
.event-title { font-size: 1.1rem; font-weight: 700; }
.event-subtitle { font-size: 0.75rem; color: var(--text-muted); margin-top: 2px; }
.regen-btn {
  background: linear-gradient(135deg, #1e3a5f, #0f2d4a);
  border: 1px solid var(--teal); color: var(--teal);
  padding: 8px 16px; border-radius: 8px; cursor: pointer;
  font-size: 0.8rem; font-weight: 600; transition: all 0.2s;
  display: flex; align-items: center; gap: 6px;
}
.regen-btn:hover { background: rgba(6,182,212,0.15); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
thead th {
  background: var(--surface2); padding: 10px 14px; text-align: left;
  font-size: 0.7rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.06em; color: var(--text-muted); border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tbody tr { border-bottom: 1px solid var(--border); transition: background 0.15s; }
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: rgba(255,255,255,0.03); }
tbody td { padding: 12px 14px; vertical-align: middle; white-space: nowrap; }
.pos-cell { font-weight: 800; font-size: 1.1rem; text-align: center; width: 48px; }
.pos-1 { color: var(--gold); }
.pos-2 { color: var(--silver); }
.pos-3 { color: var(--bronze); }
.pos-other { color: var(--text-muted); }
.athlete-name { font-weight: 600; font-size: 0.9rem; }
.athlete-country { font-size: 0.72rem; color: var(--text-muted); margin-top: 1px; }
.pred-time { font-weight: 700; font-family: 'Courier New', monospace; font-size: 1rem; color: var(--teal); }
.prob-cell { min-width: 140px; }
.prob-bar-wrap { display: flex; align-items: center; gap: 8px; }
.prob-bar-bg { flex: 1; height: 6px; background: var(--border); border-radius: 3px; overflow: hidden; }
.prob-bar-fill { height: 100%; border-radius: 3px; transition: width 0.5s ease; }
.prob-bar-gold   { background: linear-gradient(90deg, var(--gold),  #fbbf24); }
.prob-bar-green  { background: linear-gradient(90deg, var(--green), #34d399); }
.prob-bar-blue   { background: linear-gradient(90deg, var(--blue),  #60a5fa); }
.prob-bar-grey   { background: var(--text-muted); }
.prob-pct { font-size: 0.75rem; font-weight: 700; width: 34px; text-align: right; }
.trend-up   { color: var(--green); font-size: 1rem; }
.trend-down { color: var(--red);   font-size: 1rem; }
.trend-flat { color: var(--text-muted); font-size: 1rem; }
.time-mono  { font-family: 'Courier New', monospace; font-size: 0.85rem; }
.age-cell   { color: var(--text-muted); font-size: 0.8rem; }
.wr-badge {
  display: inline-block; background: linear-gradient(135deg, var(--gold), #d97706);
  color: #000; font-size: 0.6rem; font-weight: 800; padding: 2px 5px;
  border-radius: 4px; margin-left: 4px; vertical-align: middle;
}

/* ─── Historical Form ────────────────────────────────────────────────────────── */
.form-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 20px; }
.form-charts { display: grid; grid-template-columns: repeat(auto-fill, minmax(175px, 1fr)); gap: 16px; margin-top: 4px; }
.form-athlete { background: var(--surface2); border-radius: 10px; padding: 14px; border: 1px solid var(--border); }
.form-athlete-name { font-size: 0.8rem; font-weight: 700; margin-bottom: 2px; }
.form-athlete-country { font-size: 0.65rem; color: var(--text-muted); margin-bottom: 10px; }
.form-bars { display: flex; align-items: flex-end; gap: 5px; height: 60px; }
.form-year-col { display: flex; flex-direction: column; align-items: center; gap: 4px; flex: 1; }
.form-bar { width: 100%; border-radius: 3px 3px 0 0; transition: height 0.4s ease; }
.form-year-label { font-size: 0.58rem; color: var(--text-muted); }
.form-time-label { font-size: 0.58rem; font-family: monospace; color: var(--text-muted); margin-top: 4px; }

/* ─── Head to Head ───────────────────────────────────────────────────────────── */
.h2h-card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 20px; }
.h2h-selectors { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.h2h-select {
  flex: 1; min-width: 160px; background: var(--surface2); border: 1px solid var(--border);
  color: var(--text); padding: 9px 12px; border-radius: 8px; font-size: 0.875rem; outline: none; cursor: pointer;
}
.h2h-select:focus { border-color: var(--teal); }
.vs-badge {
  background: linear-gradient(135deg, var(--teal-dark), #0284c7);
  color: white; padding: 6px 12px; border-radius: 20px;
  font-size: 0.75rem; font-weight: 800; letter-spacing: 0.05em;
}
.h2h-comparison { display: grid; grid-template-columns: 1fr auto 1fr; gap: 12px; align-items: start; }
.h2h-athlete { background: var(--surface2); border-radius: 10px; padding: 16px; border: 1px solid var(--border); }
.h2h-athlete.winner { border-color: var(--teal); background: rgba(6,182,212,0.05); }
.h2h-name { font-size: 1rem; font-weight: 700; }
.h2h-country { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 12px; }
.h2h-stats { display: flex; flex-direction: column; gap: 8px; }
.h2h-stat { display: flex; justify-content: space-between; align-items: center; font-size: 0.8rem; }
.h2h-stat-label { color: var(--text-muted); }
.h2h-stat-val { font-weight: 700; font-family: monospace; }
.h2h-stat-val.win { color: var(--green); }
.h2h-mid { display: flex; flex-direction: column; align-items: center; gap: 8px; padding-top: 40px; }
.h2h-prob-bar { width: 10px; height: 160px; background: var(--border); border-radius: 5px; overflow: hidden; position: relative; }
.h2h-prob-fill { position: absolute; bottom: 0; width: 100%; border-radius: 5px; background: linear-gradient(180deg, var(--teal), var(--teal-dark)); transition: height 0.5s ease; }
.h2h-label { font-size: 0.65rem; color: var(--text-muted); writing-mode: vertical-rl; text-orientation: mixed; }
.favored-badge {
  background: linear-gradient(135deg, var(--gold), #d97706);
  color: #000; font-size: 0.65rem; font-weight: 800; padding: 3px 8px; border-radius: 10px; text-transform: uppercase;
}
.no-data { color: var(--text-muted); font-size: 0.85rem; text-align: center; padding: 20px; }

/* ─── Footer ─────────────────────────────────────────────────────────────────── */
.footer {
  text-align: center; padding: 20px; color: var(--text-muted);
  font-size: 0.72rem; border-top: 1px solid var(--border); margin-top: 10px;
}

/* ─── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 700px) {
  .header { flex-direction: column; align-items: flex-start; }
  .controls { flex-direction: column; align-items: flex-start; }
  .dist-btns { margin-left: 0; }
  .h2h-comparison { grid-template-columns: 1fr; }
  .h2h-mid { flex-direction: row; padding-top: 0; }
  .h2h-prob-bar { width: 160px; height: 10px; }
  .h2h-prob-fill { top: 0; bottom: auto; height: 100%; width: 50%; right: 0; left: auto; }
  .main { padding: 14px; }
}

/* ─── Animations ─────────────────────────────────────────────────────────────── */
.animate-in { animation: fadeSlide 0.35s ease forwards; }
@keyframes fadeSlide {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── v2.0 New Styles ────────────────────────────────────────────────────────── */

/* Header right */
.header-right { display: flex; flex-direction: column; align-items: flex-end; gap: 4px; }
.data-version { font-size: 0.65rem; color: var(--text-muted); }

/* Championship performer badges */
.champs-badge { font-size: 0.7rem; margin-left: 4px; vertical-align: middle; }
.champs-elite  { color: #fbbf24; }
.champs-good   { color: #94a3b8; }
.champs-ok     { color: #cd7c40; }
.champs-poor   { color: var(--red); }

/* H2H historical record */
.h2h-hist-record {
  margin-top: 8px; font-size: 0.72rem; color: var(--teal);
  font-weight: 600; padding: 4px 8px; background: rgba(6,182,212,0.08);
  border-radius: 6px; border: 1px solid rgba(6,182,212,0.2);
}

/* Retired/inactive row */
.retired-row td { padding: 8px 14px; }
.retired-note {
  font-size: 0.72rem; color: var(--text-muted);
  background: rgba(239,68,68,0.05); border-top: 1px dashed var(--border);
  font-style: italic;
}
.status-badge {
  display: inline-block; font-size: 0.6rem; font-weight: 700;
  padding: 1px 5px; border-radius: 4px; margin-left: 4px; vertical-align: middle;
}
.status-badge.retired { background: rgba(239,68,68,0.15); color: var(--red); border: 1px solid rgba(239,68,68,0.3); }

/* Champs multiplier column */
.champs-mult-cell { font-size: 0.75rem; font-family: monospace; color: var(--text-muted); text-align: right; }

/* Model legend */
.model-legend {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
  padding: 8px 24px; background: var(--surface); border-bottom: 1px solid var(--border);
  font-size: 0.72rem;
}
.legend-item { display: flex; align-items: center; gap: 4px; }
.legend-sep { color: var(--border); }

/* Age info in H2H */
.h2h-age-note { font-size: 0.68rem; color: var(--text-muted); font-style: italic; }

/* World Record reference row */
.wr-ref-row {
  background: linear-gradient(90deg, rgba(245,158,11,0.08) 0%, transparent 60%);
  border-bottom: 2px solid rgba(245,158,11,0.3);
}
.wr-ref-pos {
  color: var(--gold) !important;
  font-size: 0.65rem !important;
  font-weight: 800;
  letter-spacing: 0.04em;
}
.wr-ref-name { color: var(--gold) !important; }
.wr-ref-time {
  color: var(--gold) !important;
  font-weight: 700;
}
.wr-ref-note {
  font-size: 0.68rem;
  color: rgba(245,158,11,0.55);
  font-style: italic;
  padding-left: 8px !important;
}

/* ─── Athlete Profile Modal ──────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(0,0,0,0.75); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  padding: 20px; opacity: 0; pointer-events: none; transition: opacity 0.2s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal-box {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; width: 100%; max-width: 760px;
  max-height: 88vh; overflow-y: auto;
  box-shadow: 0 24px 60px rgba(0,0,0,0.6);
  animation: modalIn 0.22s ease;
}
@keyframes modalIn {
  from { transform: translateY(14px) scale(0.97); opacity: 0; }
  to   { transform: translateY(0) scale(1); opacity: 1; }
}
.modal-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  padding: 20px 22px 16px; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 1;
  background: var(--surface);
}
.modal-athlete-name { font-size: 1.4rem; font-weight: 800; }
.modal-athlete-meta { font-size: 0.8rem; color: var(--text-muted); margin-top: 3px; }
.modal-close {
  background: var(--surface2); border: 1px solid var(--border);
  color: var(--text-muted); width: 32px; height: 32px; border-radius: 8px;
  cursor: pointer; font-size: 1rem; display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; transition: all 0.15s;
}
.modal-close:hover { color: var(--text); border-color: var(--text-muted); }
.modal-body { padding: 20px 22px; }
.profile-stats { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 22px; }
.profile-stat-chip {
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 14px; font-size: 0.8rem;
}
.profile-stat-chip .chip-label {
  color: var(--text-muted); font-size: 0.68rem; text-transform: uppercase;
  letter-spacing: 0.04em; margin-bottom: 2px;
}
.profile-stat-chip .chip-val { font-weight: 700; font-family: monospace; }
.profile-events-title {
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--teal); margin-bottom: 12px;
  display: flex; align-items: center; gap: 8px;
}
.profile-events-title::after { content: ''; flex: 1; height: 1px; background: var(--border); }
.profile-event-row {
  display: flex; align-items: center; gap: 12px; padding: 10px 12px;
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: 9px; margin-bottom: 8px; cursor: pointer; transition: border-color 0.15s;
}
.profile-event-row:hover { border-color: var(--teal); }
.profile-event-name { font-size: 0.82rem; font-weight: 700; min-width: 140px; }
.profile-event-times { display: flex; gap: 18px; font-family: monospace; font-size: 0.8rem; }
.profile-time-label { color: var(--text-muted); font-family: sans-serif; font-size: 0.68rem; }
.profile-mini-bars { display: flex; align-items: flex-end; gap: 3px; height: 40px; margin-left: auto; }
.profile-mini-bar-col { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.profile-mini-bar { width: 13px; border-radius: 2px 2px 0 0; }
.profile-mini-year { font-size: 0.5rem; color: var(--text-muted); }
.athlete-name-link { cursor: pointer; transition: color 0.15s; display: inline; }
.athlete-name-link:hover { color: var(--teal); text-decoration: underline; text-underline-offset: 2px; }

/* ─── Form chart: championship year markers ─────────────────────────────────── */
.form-year-col { position: relative; }
.champs-star {
  position: absolute; top: -15px; left: 50%; transform: translateX(-50%);
  font-size: 0.6rem; line-height: 1; pointer-events: none;
}
.form-champs-legend {
  font-size: 0.65rem; color: var(--text-muted); margin-top: 10px;
  display: flex; gap: 12px; flex-wrap: wrap;
}
.form-champs-legend span { display: flex; align-items: center; gap: 3px; }

/* WR badge variants */
.wr-badge {
  display: inline-block; font-size: 0.6rem; font-weight: 800;
  padding: 1px 5px; border-radius: 4px; margin-left: 5px; vertical-align: middle;
}
.wr-threat {
  background: rgba(245,158,11,0.2); color: var(--gold);
  border: 1px solid rgba(245,158,11,0.5);
  animation: pulse-wr 2s infinite;
}
.wr-pace {
  background: rgba(245,158,11,0.1); color: rgba(245,158,11,0.75);
  border: 1px solid rgba(245,158,11,0.25);
}
@keyframes pulse-wr {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}