/* ============================================================
   ACCB — Asociación Civil de Corredores de BMX Córdoba
   Design system: deportivo + institucional
   Base oscura, acento lima para acción, naranja para énfasis.
   ============================================================ */

:root {
  --bg: #0a0d12;
  --bg-elevated: #12161d;
  --bg-elevated-2: #191f28;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.18);

  --text: #f4f6f8;
  --text-muted: #9aa7b5;
  --text-faint: #6b7684;

  --accent: #d7ff3f;
  --accent-ink: #10130a;
  --accent-2: #ff7a1a;
  --accent-2-ink: #1a0e04;

  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;

  --container: 1180px;
  --font-display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --font-body: "Barlow", "Segoe UI", sans-serif;

  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.45);
}

/* ---------- reset ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font: inherit; }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 1.05;
  margin: 0 0 0.5em;
}
p { margin: 0 0 1em; color: var(--text-muted); }
p:last-child { margin-bottom: 0; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 10px 16px;
  z-index: 1000;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-accent { background: var(--accent); color: var(--accent-ink); }
.btn-accent:hover { background: #e4ff70; }
.btn-secondary { background: var(--accent-2); color: var(--accent-2-ink); }
.btn-secondary:hover { background: #ff8f3d; }
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line-strong);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-lg { padding: 16px 32px; font-size: 19px; }
.btn-sm { padding: 9px 16px; font-size: 14px; }
.btn:disabled, .btn[aria-disabled="true"] {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
}
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.btn-row.center { justify-content: center; }

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--line);
}
/* Blur lives on a ::before layer, not on .site-header itself: a
   backdrop-filter on .site-header would create a new containing block
   for its position:fixed descendants (the mobile nav panel), anchoring
   it to the 76px-tall header instead of the viewport. */
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(10, 13, 18, 0.85);
  backdrop-filter: blur(10px);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 26px;
  text-transform: lowercase;
  letter-spacing: -0.02em;
  line-height: 1;
}
.brand-mark-a { color: #e0473f; }
.brand-mark-b { color: #3fa64a; }
.brand-name { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name strong {
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: 0.08em;
}
.brand-name small { color: var(--text-faint); font-size: 11px; letter-spacing: 0.04em; }

.primary-nav { display: flex; align-items: center; gap: 32px; }
.primary-nav ul { display: flex; gap: 26px; }
.primary-nav a {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  transition: color 0.15s ease;
}
.primary-nav a:hover { color: var(--accent); }
.nav-cta { padding: 10px 20px; font-size: 15px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: var(--text);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- hero ---------- */
.hero {
  position: relative;
  padding: 96px 0 80px;
  overflow: hidden;
  isolation: isolate;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 900px 500px at 15% -10%, rgba(215, 255, 63, 0.16), transparent 60%),
    radial-gradient(ellipse 700px 500px at 100% 10%, rgba(255, 122, 26, 0.14), transparent 60%),
    repeating-linear-gradient(115deg, rgba(255,255,255,0.035) 0 2px, transparent 2px 34px),
    repeating-linear-gradient(115deg, rgba(255,255,255,0.02) 0 10px, transparent 10px 90px),
    linear-gradient(180deg, #0a0d12 0%, #0d1117 100%);
}
.hero .eyebrow { color: var(--accent); }
.hero h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); max-width: 14ch; }
.hero .lead { font-size: 19px; max-width: 46ch; color: var(--text-muted); }

.eyebrow {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 14px;
  color: var(--accent-2);
  margin: 0 0 10px;
}

/* ---------- sections ---------- */
.section { padding: 84px 0; }
.section-alt { background: var(--bg-elevated); }
.section-head { max-width: 640px; margin-bottom: 40px; }
.section-head h2 { font-size: clamp(1.9rem, 4vw, 2.6rem); }
.section-lead { font-size: 17px; }

.two-col {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
}
.two-col.reverse { grid-template-columns: 1fr 1.1fr; }
.two-col.reverse > *:first-child { order: 2; }
.two-col h2 { font-size: clamp(1.9rem, 4vw, 2.4rem); }

.fine-print { font-size: 13px; color: var(--text-faint); }
.fine-print a { color: var(--accent); text-decoration: underline; }

.badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 122, 26, 0.15);
  color: var(--accent-2);
}
.badge.pending { background: rgba(255,255,255,0.08); color: var(--text-faint); }

/* ---------- próxima fecha ---------- */
.next-date-card {
  background: linear-gradient(155deg, var(--bg-elevated-2), var(--bg-elevated));
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 36px;
  align-items: center;
  box-shadow: var(--shadow-lg);
}
.next-date-number {
  font-family: var(--font-display);
  font-size: 72px;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.next-date-number span { display: block; font-size: 13px; color: var(--text-faint); font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; margin-top: 4px; }
.next-date-body h3 { font-size: 26px; margin-bottom: 12px; }
.next-date-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-bottom: 10px;
}
.next-date-meta div { font-size: 14px; color: var(--text-muted); }
.next-date-meta strong { display: block; color: var(--text); font-size: 15px; }
.next-date-actions { display: flex; flex-direction: column; gap: 10px; min-width: 220px; }
.next-date-actions .fine-print { text-align: center; }
.next-date-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 8px;
}
.next-date-status.is-live::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #ff3b3b;
  box-shadow: 0 0 0 4px rgba(255,59,59,0.2);
}

/* ---------- stats ---------- */
.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin: 0;
}
.stat {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
}
.stat dt { font-size: 13px; color: var(--text-faint); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 6px; }
.stat dd {
  margin: 0;
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 800;
  color: var(--accent);
}
.stat-unit { font-size: 14px; color: var(--text-faint); font-weight: 600; }
.stat-text { font-size: 20px; color: var(--accent); }

/* ---------- chips ---------- */
.chip-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 8px; }
.chip {
  background: var(--bg-elevated-2);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: 8px 18px;
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 14px;
  letter-spacing: 0.03em;
  color: var(--text);
}

/* ---------- link cards ---------- */
.link-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 32px;
}
.link-card {
  background: var(--bg-elevated-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.link-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.link-card h3 { font-size: 19px; margin-bottom: 8px; }
.link-card p { font-size: 14px; margin: 0; }

/* ---------- calendar ---------- */
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
}
.cal-card {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: border-color 0.15s ease;
}
.cal-card.is-next {
  border-color: var(--accent);
  background: linear-gradient(160deg, rgba(215,255,63,0.08), var(--bg-elevated));
}
.cal-card.is-past { opacity: 0.7; }
.cal-card-top { display: flex; justify-content: space-between; align-items: flex-start; }
.cal-card-num {
  font-family: var(--font-display);
  font-size: 34px;
  font-weight: 800;
  color: var(--text-faint);
  line-height: 1;
}
.cal-card.is-next .cal-card-num { color: var(--accent); }
.cal-card h3 { font-size: 18px; margin: 0; }
.cal-card .cal-date { font-size: 14px; color: var(--text-muted); }
.cal-card .btn { margin-top: auto; align-self: flex-start; }

/* ---------- pistas ---------- */
.track-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.track-card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.track-card-header {
  padding: 20px 22px 16px;
  border-bottom: 1px solid var(--line);
}
.track-card-header h3 { font-size: 19px; margin-bottom: 4px; }
.track-card-body { padding: 16px 22px 22px; display: flex; flex-direction: column; gap: 8px; }
.track-card-row { display: flex; justify-content: space-between; gap: 12px; font-size: 14px; }
.track-card-row .k { color: var(--text-faint); }
.track-card-row .v { color: var(--text-muted); text-align: right; }
.track-card-actions { margin-top: 10px; display: flex; gap: 10px; flex-wrap: wrap; }

/* ---------- faq ---------- */
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-item:first-child { border-top: 1px solid var(--line); }
.faq-q {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  background: none;
  border: none;
  color: var(--text);
  text-align: left;
  padding: 18px 4px;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
}
.faq-q::after {
  content: "+";
  font-size: 22px;
  color: var(--accent);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}
.faq-item.is-open .faq-q::after { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.faq-a p { padding: 0 4px 18px; font-size: 15px; }
.faq-item.is-open .faq-a { max-height: 200px; }

/* ---------- bmxarg cta ---------- */
.bmxarg-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.bmxarg-inner h2 { margin-bottom: 12px; }
.bmxarg-inner .section-lead { margin: 0; max-width: 52ch; }

/* ---------- news ---------- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.news-card {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.news-thumb {
  aspect-ratio: 16/10;
  background:
    repeating-linear-gradient(135deg, rgba(255,255,255,0.05) 0 2px, transparent 2px 18px),
    linear-gradient(160deg, var(--bg-elevated-2), var(--bg));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-faint);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.news-card-body { padding: 18px 20px 22px; }
.news-card h3 { font-size: 17px; margin-bottom: 6px; }
.news-card p { font-size: 14px; margin: 0; }
.news-date { font-size: 12px; color: var(--accent-2); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 700; margin-bottom: 8px; display: block; }
.news-footer { margin-top: 32px; text-align: center; }

/* ---------- community photos ---------- */
.photo-strip {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  grid-template-rows: 1fr 1fr;
  gap: 14px;
  height: 380px;
}
.photo-slot {
  border-radius: var(--radius);
  background:
    repeating-linear-gradient(115deg, rgba(255,255,255,0.04) 0 2px, transparent 2px 24px),
    linear-gradient(160deg, var(--bg-elevated-2), var(--bg-elevated));
  border: 1px solid var(--line);
}
.photo-slot:first-child { grid-row: span 2; }

/* ---------- sponsors ---------- */
.sponsor-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 40px;
}
.sponsor-slot {
  aspect-ratio: 3/2;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg-elevated);
}

/* ---------- contact ---------- */
.contact-list { margin-top: 24px; display: flex; flex-direction: column; gap: 14px; }
.contact-list li { display: flex; justify-content: space-between; align-items: center; gap: 12px; border-bottom: 1px solid var(--line); padding-bottom: 12px; }
.contact-label { font-family: var(--font-display); font-weight: 700; text-transform: uppercase; font-size: 13px; letter-spacing: 0.04em; color: var(--text-faint); }
.contact-list a { color: var(--accent); font-weight: 600; }

.contact-form {
  background: var(--bg-elevated-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-faint);
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  background: var(--bg);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.contact-form button { align-self: flex-start; margin-top: 6px; }
.form-status { font-size: 14px; color: var(--accent); min-height: 1.2em; }

/* ---------- footer ---------- */
.site-footer {
  background: #06080b;
  border-top: 1px solid var(--line);
  padding: 48px 0 32px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 24px;
  align-items: start;
}
.footer-brand { display: flex; gap: 14px; align-items: flex-start; }
.footer-brand p { margin: 0; font-size: 14px; color: var(--text-muted); }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  justify-content: flex-end;
}
.footer-links a { font-size: 14px; color: var(--text-muted); }
.footer-links a:hover { color: var(--accent); }
.footer-credits {
  grid-column: 1 / -1;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .two-col, .two-col.reverse { grid-template-columns: 1fr; gap: 32px; }
  .two-col.reverse > *:first-child { order: 0; }
  .link-cards { grid-template-columns: 1fr 1fr; }
  .sponsor-row { grid-template-columns: repeat(2, 1fr); }
  .next-date-card { grid-template-columns: 1fr; text-align: left; }
  .next-date-actions { min-width: 0; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links { justify-content: flex-start; }
}

@media (max-width: 760px) {
  .nav-toggle { display: flex; }
  .primary-nav {
    position: fixed;
    inset: 76px 0 0 0;
    background: var(--bg);
    flex-direction: column;
    align-items: stretch;
    padding: 24px 20px;
    transform: translateX(100%);
    transition: transform 0.25s ease;
    overflow-y: auto;
  }
  .primary-nav.is-open { transform: translateX(0); }
  .primary-nav ul { flex-direction: column; gap: 4px; }
  .primary-nav ul a { display: block; padding: 14px 4px; border-bottom: 1px solid var(--line); }
  .nav-cta { margin-top: 20px; align-self: flex-start; }
  .link-cards { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .bmxarg-inner { flex-direction: column; align-items: flex-start; }
  .photo-strip { height: auto; grid-template-rows: 220px 140px 140px; grid-template-columns: 1fr; }
  .photo-slot:first-child { grid-row: auto; }
}