/*
 * Startline — application.css
 * All colors use CSS custom properties (--color-*) to support track theme switching.
 * Theme is set via data-theme="..." on <body>.
 */

/* ============================================================
   TRACK THEMES — Iconic running track color palettes
   ============================================================ */

:root,
[data-theme="track"] {
  /* Default: standard IAAF Mondo running track — vermillion/track orange */
  --color-primary:       #C8440A;
  --color-primary-hover: #A83608;
  --color-primary-light: rgba(200, 68, 10, 0.1);
}

[data-theme="berlin"] {
  /* Olympiastadion Berlin — vivid blue tartan (World Champs 2009+) */
  --color-primary:       #1560A8;
  --color-primary-hover: #0F4A84;
  --color-primary-light: rgba(21, 96, 168, 0.1);
}

[data-theme="paris"] {
  /* Stade de France — deep violet/purple (Paris 2024) */
  --color-primary:       #7B2FBE;
  --color-primary-hover: #6020A0;
  --color-primary-light: rgba(123, 47, 190, 0.1);
}

[data-theme="athens"] {
  /* Panathenaic Stadium — near-black marble aesthetic */
  --color-primary:       #1A1A1A;
  --color-primary-hover: #333333;
  --color-primary-light: rgba(26, 26, 26, 0.1);
}

/* ============================================================
   BASE TOKENS — theme-invariant
   ============================================================ */

:root {
  --color-bg:           #f5f5f5;
  --color-surface:      #ffffff;
  --color-text:         #1a1a1a;
  --color-text-muted:   #666666;
  --color-border:       #e0e0e0;
  --color-success:      #2d6a4f;
  --color-success-bg:   #d4edda;
  --color-error:        #dc3545;
  --color-error-bg:     #f8d7da;
  --color-error-text:   #721c24;
  --color-warning-bg:   #fff3cd;

  --font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;
  --radius:    6px;
  --shadow:    0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
}

/* ============================================================
   RESET & BASE
   ============================================================ */

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
}

a {
  color: var(--color-primary);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

/* ============================================================
   NAVIGATION — desktop top bar
   ============================================================ */

.navbar {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 0;
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.nav-brand a { color: var(--color-text); }
.nav-brand a:hover { color: var(--color-primary); text-decoration: none; }

.nav-links {
  display: flex;
  gap: 0.25rem;
  align-items: center;
}

.nav-link {
  color: var(--color-text-muted);
  text-decoration: none;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 500;
  transition: background-color 0.15s, color 0.15s;
}
.nav-link:hover { background-color: var(--color-primary-light); color: var(--color-primary); text-decoration: none; }
.nav-link.active { color: var(--color-primary); background-color: var(--color-primary-light); }

.nav-actions { display: flex; gap: 0.5rem; align-items: center; }

/* ============================================================
   FLASH MESSAGES
   ============================================================ */

.flash-wrapper {
  max-width: 800px;
  margin: 0.75rem auto;
  padding: 0 2rem;
}

.flash {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
}
.flash-notice { background-color: var(--color-success-bg); color: var(--color-success); border: 1px solid #c3e6cb; }
.flash-alert  { background-color: var(--color-error-bg); color: var(--color-error-text); border: 1px solid #f5c6cb; }

/* ============================================================
   LAYOUT
   ============================================================ */

.main-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
}

.page-header {
  margin-bottom: 2rem;
}
.page-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.page-header p { color: var(--color-text-muted); margin-top: 0.25rem; }

/* ============================================================
   CARDS
   ============================================================ */

.card {
  background-color: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 1rem;
}

/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
  padding: 0.6rem 1.25rem;
  border: none;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.15s;
  text-decoration: none;
  display: inline-block;
  text-align: center;
  line-height: 1.4;
}
.btn:hover { text-decoration: none; }

.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
}

.btn-google {
  background-color: #fff;
  color: #3c4043;
  border: 1px solid #dadce0;
  width: 100%;
}
.btn-google:hover { background-color: #f8f9fa; }

.oauth-divider {
  display: flex;
  align-items: center;
  margin: 1.25rem 0;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}
.oauth-divider::before,
.oauth-divider::after {
  content: "";
  flex: 1;
  border-top: 1px solid #dadce0;
}
.oauth-divider span { padding: 0 0.75rem; }
.btn-primary:hover { background-color: var(--color-primary-hover); }

.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}
.btn-secondary:hover { background-color: var(--color-primary-light); }

.btn-ghost {
  background-color: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover { background-color: var(--color-bg); }

.btn-danger {
  background-color: transparent;
  color: var(--color-error);
  border: 1px solid var(--color-error);
}
.btn-danger:hover { background-color: var(--color-error-bg); }

.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.85rem; }
.btn-full { width: 100%; }

/* ============================================================
   FORMS
   ============================================================ */

.form-stack { display: flex; flex-direction: column; gap: 1.25rem; }

.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-weight: 500; font-size: 0.9rem; color: var(--color-text); }

.form-control {
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color 0.15s, box-shadow 0.15s;
  width: 100%;
}
.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.form-hint { font-size: 0.8rem; color: var(--color-text-muted); }

.form-actions { margin-top: 0.5rem; display: flex; gap: 0.75rem; flex-wrap: wrap; }

.auth-container {
  max-width: 420px;
  margin: 4rem auto;
  background-color: var(--color-surface);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.auth-container h1 { margin-bottom: 1.5rem; text-align: center; font-size: 1.5rem; }
.auth-link { text-align: center; margin-top: 1.25rem; color: var(--color-text-muted); font-size: 0.9rem; }

.error-messages {
  background-color: var(--color-error-bg);
  color: var(--color-error-text);
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  border: 1px solid #f5c6cb;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}
.error-messages ul { list-style: none; }
.error-messages li + li { margin-top: 0.3rem; }

/* ============================================================
   PR STATS ROW — headline stats at top of resume / public profile
   ============================================================ */

.pr-stats-row {
  display: flex;
  gap: 0.75rem;
  overflow-x: auto;
  padding-bottom: 0.5rem;
  margin-bottom: 2rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.pr-stats-row::-webkit-scrollbar { display: none; }

.pr-chip {
  flex-shrink: 0;
  min-width: 90px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
}
.pr-chip.has-pr { border-color: var(--color-primary); }

.pr-chip-label {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.3rem;
}
.pr-chip.has-pr .pr-chip-label { color: var(--color-primary); }

.pr-chip-time {
  display: block;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}
.pr-chip.empty .pr-chip-time { color: var(--color-border); }

/* ============================================================
   PROGRESSION CHART
   ============================================================ */

.chart-section {
  background-color: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 2rem;
}
.chart-section h2 {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

/* Ghost chart — empty state */
.ghost-chart {
  height: 200px;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  color: var(--color-text-muted);
  text-align: center;
}
.ghost-chart p { font-size: 0.9rem; }

/* ============================================================
   RACE LIST
   ============================================================ */

.race-list { display: flex; flex-direction: column; gap: 0; }

.race-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 1rem;
  padding: 0.875rem 1rem;
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}
.race-row:first-child { border-radius: var(--radius) var(--radius) 0 0; }
.race-row:last-child { border-bottom: none; border-radius: 0 0 var(--radius) var(--radius); }
.race-row:only-child { border-radius: var(--radius); }
.race-row:hover { background-color: #fafafa; }

.race-row-left { min-width: 0; }
.race-name { font-weight: 600; font-size: 0.95rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.race-meta { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 0.1rem; }

.race-row-center { display: flex; align-items: center; }

.distance-chip {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border-radius: 20px;
  white-space: nowrap;
}
.distance-chip.d-5k          { background: #e3f2fd; color: #1565c0; }
.distance-chip.d-10k         { background: #e0f7fa; color: #00695c; }
.distance-chip.d-10mi        { background: #fff3e0; color: #e65100; }
.distance-chip.d-half_marathon { background: #f3e5f5; color: #6a1b9a; }
.distance-chip.d-marathon    { background: #fce4ec; color: #880e4f; }

.race-row-right { display: flex; align-items: center; gap: 0.5rem; }

.race-time {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-text);
}

.badge-pr {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background-color: var(--color-primary);
  color: #fff;
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
}

.badge-registered {
  font-size: 0.72rem;
  font-weight: 600;
  background-color: var(--color-success-bg);
  color: var(--color-success);
  padding: 0.2rem 0.5rem;
  border-radius: 20px;
}

.badge-dnf, .badge-dns {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-text-muted);
  background-color: var(--color-bg);
  padding: 0.2rem 0.5rem;
  border-radius: 20px;
}

.race-actions { display: flex; gap: 0.25rem; }

/* ============================================================
   HEAD-TO-HEAD TABLE
   ============================================================ */

.h2h-section { margin-bottom: 2rem; }

.h2h-banner {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius) var(--radius) 0 0;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.h2h-banner .h2h-score {
  font-size: 1.75rem;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.h2h-banner .h2h-label { font-size: 0.8rem; color: var(--color-text-muted); text-align: center; }
.h2h-summary { font-size: 0.85rem; color: var(--color-text-muted); }

.h2h-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-surface);
  border-radius: 0 0 var(--radius) var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.h2h-table th {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: 0.6rem 1rem;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  text-align: left;
}
.h2h-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.9rem;
  vertical-align: middle;
}
.h2h-table tr:last-child td { border-bottom: none; }
.h2h-table .time-cell { font-family: var(--font-mono); font-weight: 600; }
.h2h-table .winner-cell { font-weight: 700; color: var(--color-primary); }
.h2h-table .delta-cell { font-family: var(--font-mono); color: var(--color-text-muted); font-size: 0.85rem; }
.h2h-table .delta-cell.faster { color: var(--color-success); }
.h2h-table .delta-cell.slower { color: var(--color-error); }

.h2h-empty {
  background-color: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
  text-align: center;
  color: var(--color-text-muted);
}

/* ============================================================
   FEED CARDS
   ============================================================ */

.feed-section { margin-bottom: 2.5rem; }
.feed-section-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.feed-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  background-color: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 0.875rem 1rem;
  margin-bottom: 0.5rem;
}

.feed-card-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.feed-card-body { flex: 1; min-width: 0; }
.feed-card-main { font-weight: 600; font-size: 0.9rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.feed-card-sub  { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 0.1rem; }

.feed-card-right { display: flex; align-items: center; gap: 0.5rem; flex-shrink: 0; }

.feed-time { font-family: var(--font-mono); font-weight: 700; font-size: 0.9rem; }

/* ============================================================
   SECTION HEADERS
   ============================================================ */

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.section-header h2 { font-size: 1.1rem; font-weight: 700; }

/* ============================================================
   EMPTY STATES
   ============================================================ */

.empty-state {
  text-align: center;
  padding: 3rem 2rem;
  background-color: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.empty-state p { color: var(--color-text-muted); margin-bottom: 1.25rem; }

/* ============================================================
   AUTOCOMPLETE DROPDOWN
   ============================================================ */

.autocomplete-wrapper { position: relative; }

.autocomplete-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow: var(--shadow);
  z-index: 50;
  max-height: 240px;
  overflow-y: auto;
}

.autocomplete-option {
  padding: 0.6rem 0.85rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  font-size: 0.9rem;
}
.autocomplete-option:hover, .autocomplete-option.active { background-color: var(--color-primary-light); }
.autocomplete-option-name { font-weight: 500; }
.autocomplete-option-meta { font-size: 0.75rem; color: var(--color-text-muted); white-space: nowrap; }
.autocomplete-option-create { color: var(--color-primary); font-style: italic; }

/* ============================================================
   USERNAME AVAILABILITY
   ============================================================ */

.username-status { font-size: 0.82rem; margin-top: 0.3rem; }
.username-status.available { color: var(--color-success); }
.username-status.taken { color: var(--color-error); }
.username-suggestions { display: flex; gap: 0.5rem; margin-top: 0.5rem; flex-wrap: wrap; }
.username-suggestion-btn {
  font-size: 0.8rem;
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: 20px;
  background: var(--color-surface);
  cursor: pointer;
  color: var(--color-text-muted);
}
.username-suggestion-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }

/* ============================================================
   ONBOARDING
   ============================================================ */

.onboarding-container { max-width: 540px; margin: 3rem auto; }
.onboarding-step-indicator { font-size: 0.8rem; color: var(--color-text-muted); margin-bottom: 0.5rem; }
.onboarding-skip { font-size: 0.85rem; color: var(--color-text-muted); }

/* ============================================================
   THEME PICKER
   ============================================================ */

.theme-picker { display: flex; gap: 0.75rem; flex-wrap: wrap; }
.theme-swatch {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 3px solid transparent;
  cursor: pointer;
  appearance: none;
  outline: none;
  transition: transform 0.15s;
}
.theme-swatch:checked, .theme-swatch:hover { transform: scale(1.15); border-color: var(--color-text); }
.theme-swatch.swatch-track   { background-color: #C8440A; }
.theme-swatch.swatch-berlin  { background-color: #1560A8; }
.theme-swatch.swatch-paris   { background-color: #7B2FBE; }
.theme-swatch.swatch-athens  { background-color: #1A1A1A; }

/* ============================================================
   RESPONSIVE — mobile (≤768px)
   ============================================================ */

@media (max-width: 768px) {
  .nav-container { padding: 0 1rem; }
  .main-content  { padding: 1rem; }
  .auth-container { margin: 2rem 1rem; }

  /* Hide desktop nav links on mobile — show bottom tab bar instead */
  .nav-links { display: none; }

  .bottom-nav {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border);
    z-index: 100;
  }
  .bottom-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0.5rem 0 0.4rem;
    font-size: 0.65rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-decoration: none;
    gap: 0.2rem;
  }
  .bottom-nav-item.active { color: var(--color-primary); }
  .bottom-nav-item svg { width: 20px; height: 20px; }

  /* Add bottom padding so content isn't hidden behind bottom nav */
  .main-content { padding-bottom: 5rem; }

  .race-row { grid-template-columns: 1fr auto; }
  .race-row-center { display: none; } /* hide distance chip on very narrow screens if needed */

  .h2h-banner { flex-direction: column; text-align: center; }

  .feed-card-right .btn { display: none; } /* "I'm in" button shows as full-width row below on mobile */

  .pr-stats-row { gap: 0.5rem; }
  .pr-chip { min-width: 75px; padding: 0.6rem 0.75rem; }
}

@media (min-width: 769px) {
  .bottom-nav { display: none; }
}
