/* ============================================================
   Solstice Ride — Styles
   ============================================================ */

/* --- Reset & Base ----------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #060b18;
  --surface:     #0d1427;
  --surface-2:   #131c34;
  --border:      #1c2840;
  --border-soft: #242f4a;

  --text:        #dde4f0;
  --text-muted:  #7b8baa;
  --text-dim:    #424f68;

  --winter:      #7ec8e3;
  --winter-dark: #3a89b8;
  --winter-glow: rgba(126,200,227,0.18);

  --summer:      #f0b84a;
  --summer-dark: #c87a10;
  --summer-glow: rgba(240,184,74,0.18);

  --accent:      #8b70d8;
  --success:     #45d48a;
  --error:       #f06060;

  --radius-sm:   6px;
  --radius:      12px;
  --radius-lg:   20px;

  --font-display: 'Cinzel', Georgia, serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;

  --max-width: 920px;
  --section-gap: 100px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
}

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

/* --- Nav -------------------------------------------------- */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(6, 11, 24, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  color: var(--text);
  cursor: default;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 28px;
}

nav ul a {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
  transition: color 0.2s;
}

nav ul a:hover {
  color: var(--text);
  text-decoration: none;
}

/* --- Hero ------------------------------------------------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px 60px;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(55,80,160,0.25) 0%, transparent 70%),
    radial-gradient(ellipse 60% 40% at 20% 100%, rgba(30,50,120,0.15) 0%, transparent 60%),
    var(--bg);
}

/* Subtle starfield using box-shadow */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 10% 15%, rgba(255,255,255,0.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 25% 8%, rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 40% 22%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 60% 5%, rgba(255,255,255,0.7) 0%, transparent 100%),
    radial-gradient(1px 1px at 75% 18%, rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 88% 12%, rgba(255,255,255,0.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 5%  40%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 33% 55%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 68% 48%, rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 92% 35%, rgba(255,255,255,0.6) 0%, transparent 100%),
    radial-gradient(1.5px 1.5px at 50% 70%, rgba(255,255,255,0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 18% 82%, rgba(255,255,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 80% 75%, rgba(255,255,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 45% 90%, rgba(255,255,255,0.3) 0%, transparent 100%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 680px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 8vw, 5.5rem);
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.1;
  background: linear-gradient(135deg, #c0d8f0 0%, #f0b84a 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
}

.tagline {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--text-muted);
  letter-spacing: 0.02em;
  margin-bottom: 40px;
  font-weight: 300;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Buttons ---------------------------------------------- */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  font-family: var(--font-body);
  letter-spacing: 0.01em;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--winter-dark), var(--accent));
  color: #fff;
  box-shadow: 0 4px 20px rgba(58,137,184,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(58,137,184,0.45);
  text-decoration: none;
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-soft);
}
.btn-secondary:hover {
  border-color: var(--text-muted);
  background: var(--surface);
  text-decoration: none;
  color: var(--text);
}

/* --- Sections --------------------------------------------- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: var(--section-gap) 24px; }

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-align: center;
  margin-bottom: 12px;
  color: var(--text);
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 48px;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
  font-size: 1.05rem;
}

/* --- Event Cards ------------------------------------------ */
.events-section {
  background: linear-gradient(180deg, var(--bg) 0%, var(--surface) 100%);
  padding-top: var(--section-gap);
  padding-bottom: var(--section-gap);
}

.events-section .section-title { margin-bottom: 48px; }

.events-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

.event-card {
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  position: relative;
  overflow: hidden;
  transition: transform 0.25s, box-shadow 0.25s;
}

.event-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
}

.event-card.winter {
  border-color: rgba(126,200,227,0.3);
  box-shadow: 0 0 40px var(--winter-glow);
}
.event-card.winter::before {
  background: radial-gradient(ellipse 80% 60% at 30% 0%, rgba(126,200,227,0.07) 0%, transparent 70%);
}

.event-card.summer {
  border-color: rgba(240,184,74,0.3);
  box-shadow: 0 0 40px var(--summer-glow);
}
.event-card.summer::before {
  background: radial-gradient(ellipse 80% 60% at 70% 0%, rgba(240,184,74,0.07) 0%, transparent 70%);
}

.event-card:hover { transform: translateY(-4px); }
.event-card.winter:hover { box-shadow: 0 8px 60px rgba(126,200,227,0.25); }
.event-card.summer:hover { box-shadow: 0 8px 60px rgba(240,184,74,0.25); }

.event-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  display: block;
}

.event-card h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.event-card.winter h3 { color: var(--winter); }
.event-card.summer h3 { color: var(--summer); }

.event-subtitle {
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.event-card p {
  color: var(--text-muted);
  font-size: 0.97rem;
  line-height: 1.7;
  margin-bottom: 24px;
}

.event-detail {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.03em;
}

.winter .event-detail {
  background: rgba(126,200,227,0.1);
  color: var(--winter);
  border: 1px solid rgba(126,200,227,0.25);
}
.summer .event-detail {
  background: rgba(240,184,74,0.1);
  color: var(--summer);
  border: 1px solid rgba(240,184,74,0.25);
}

/* --- Submit Form ------------------------------------------ */
.submit-section {
  background: var(--surface);
}

.ride-form {
  max-width: 680px;
  margin: 0 auto;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

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

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.form-row .form-group { margin-bottom: 0; }

label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.optional { color: var(--text-dim); font-weight: 400; }
.required { color: var(--summer); }

input[type="text"],
input[type="email"],
select {
  background: var(--surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 11px 14px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}

input::placeholder { color: var(--text-dim); }

input:focus, select:focus {
  border-color: var(--winter-dark);
  box-shadow: 0 0 0 3px rgba(58,137,184,0.15);
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%237b8baa' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  cursor: pointer;
}

select option { background: var(--surface-2); }

/* Event radio buttons */
.event-select {
  display: flex;
  gap: 12px;
}

.event-radio {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-soft);
  background: var(--surface);
  cursor: pointer;
  transition: all 0.2s;
  gap: 8px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
}

.event-radio input[type="radio"] { display: none; }

.event-radio.winter-radio:has(input:checked) {
  border-color: var(--winter-dark);
  background: rgba(126,200,227,0.08);
  color: var(--winter);
  box-shadow: 0 0 0 3px rgba(58,137,184,0.15);
}

.event-radio.summer-radio:has(input:checked) {
  border-color: var(--summer-dark);
  background: rgba(240,184,74,0.08);
  color: var(--summer);
  box-shadow: 0 0 0 3px rgba(200,122,16,0.15);
}

/* File drop zone */
.file-drop {
  border: 2px dashed var(--border-soft);
  border-radius: var(--radius);
  padding: 36px 24px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--surface);
  position: relative;
}

.file-drop:hover, .file-drop.drag-over {
  border-color: var(--winter-dark);
  background: rgba(58,137,184,0.05);
}

.file-drop-icon { font-size: 2rem; margin-bottom: 12px; display: block; }

.file-drop p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.file-hint {
  font-size: 0.82rem !important;
  color: var(--text-dim) !important;
}

.file-browse {
  color: var(--winter);
  cursor: pointer;
}

#gpx-file {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}

/* Distance preview */
.distance-preview {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: rgba(69,212,138,0.06);
  border: 1px solid rgba(69,212,138,0.25);
  border-radius: var(--radius);
  margin-bottom: 20px;
}

.distance-preview.hidden { display: none; }

.distance-icon { font-size: 1.5rem; }

.distance-text {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.distance-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-dim);
}

.distance-value {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--success);
  font-family: var(--font-display);
}

.btn-clear {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 1rem;
  padding: 4px 8px;
  border-radius: 4px;
  transition: color 0.2s;
}
.btn-clear:hover { color: var(--text); }

/* Form message */
.form-message {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  margin-bottom: 20px;
}
.form-message.hidden { display: none; }
.form-message.success {
  background: rgba(69,212,138,0.08);
  border: 1px solid rgba(69,212,138,0.3);
  color: var(--success);
}
.form-message.error {
  background: rgba(240,96,96,0.08);
  border: 1px solid rgba(240,96,96,0.3);
  color: var(--error);
}

.btn-submit {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
}

.btn-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* --- Field hint ------------------------------------------- */
.field-hint {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 6px;
  line-height: 1.4;
}

/* --- Reminder opt-in row ---------------------------------- */
.reminder-row {
  margin-bottom: 20px;
}
.reminder-row.hidden { display: none; }

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-soft);
  background: var(--surface);
  transition: border-color 0.2s, background 0.2s;
  user-select: none;
}

.checkbox-label:hover {
  border-color: var(--accent);
  background: rgba(139,112,216,0.04);
}

.checkbox-label input[type="checkbox"] { display: none; }

.checkbox-custom {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 2px solid var(--border-soft);
  background: var(--surface-2);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom {
  background: var(--accent);
  border-color: var(--accent);
}

.checkbox-label input[type="checkbox"]:checked + .checkbox-custom::after {
  content: '✓';
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1;
}

.checkbox-text { flex: 1; }

/* --- Solstice Year hint (form) ---------------------------- */
.sy-hint {
  font-size: 0.85rem;
  color: var(--accent);
  background: rgba(139,112,216,0.08);
  border: 1px solid rgba(139,112,216,0.25);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 20px;
}
.sy-hint.hidden { display: none; }

/* --- Leaderboard ------------------------------------------ */
.leaderboard-section {
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
}

.leaderboard-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 24px;
}

.tab-btn {
  padding: 10px 24px;
  border-radius: 50px;
  border: 1px solid var(--border-soft);
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.tab-btn.active[data-event="combined"] {
  background: rgba(139,112,216,0.1);
  border-color: rgba(139,112,216,0.4);
  color: var(--accent);
}

.tab-btn.active[data-event="summer"] {
  background: rgba(240,184,74,0.1);
  border-color: rgba(240,184,74,0.4);
  color: var(--summer);
}

.tab-btn.active[data-event="winter"] {
  background: rgba(126,200,227,0.1);
  border-color: rgba(126,200,227,0.4);
  color: var(--winter);
}

.year-select-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 32px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.year-select-row select {
  width: auto;
  padding: 7px 32px 7px 12px;
}

#leaderboard-content {
  max-width: var(--max-width);
  margin: 0 auto;
}

.loading-spinner {
  text-align: center;
  color: var(--text-dim);
  padding: 60px;
}

.leaderboard-empty {
  text-align: center;
  color: var(--text-dim);
  padding: 60px 24px;
  font-size: 1.05rem;
}

.leaderboard-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.leaderboard-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.leaderboard-table th {
  background: var(--surface-2);
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 14px 20px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.leaderboard-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

.leaderboard-table tbody tr:last-child td { border-bottom: none; }

.leaderboard-table tbody tr {
  background: var(--surface);
  transition: background 0.15s;
}

.leaderboard-table tbody tr:nth-child(even) {
  background: var(--surface-2);
}

.leaderboard-table tbody tr:hover {
  background: rgba(255,255,255,0.03);
}

.rank-cell {
  width: 60px;
  text-align: center;
  font-weight: 700;
  color: var(--text-dim);
}

.rank-medal { font-size: 1.2rem; }

.distance-cell {
  font-weight: 600;
  font-family: var(--font-display);
  font-size: 1rem;
}

.distance-cell.summer-dist { color: var(--summer); }
.distance-cell.winter-dist { color: var(--winter); }
.distance-cell.total-dist  { color: var(--accent); font-size: 1.05rem; }

.unit { font-size: 0.78rem; color: var(--text-dim); font-family: var(--font-body); font-weight: 400; }

.year-tag {
  font-size: 0.72rem;
  color: var(--text-dim);
  font-family: var(--font-body);
  font-weight: 400;
  margin-left: 4px;
}

.complete-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--success);
  background: rgba(69,212,138,0.08);
  border: 1px solid rgba(69,212,138,0.2);
  border-radius: 50px;
  padding: 2px 8px;
  margin-left: 8px;
  vertical-align: middle;
}

.date-cell { color: var(--text-muted); font-size: 0.87rem; }

/* --- Footer ----------------------------------------------- */
footer {
  text-align: center;
  padding: 32px 24px;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.875rem;
}

footer a { color: var(--text-dim); }
footer a:hover { color: var(--text-muted); }

/* --- Responsive ------------------------------------------- */
@media (max-width: 640px) {
  .events-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .ride-form { padding: 28px 20px; }
  .event-select { flex-direction: column; }
  nav ul { gap: 16px; }
}