/* ============================================================
   MarathonsCountdown.com — Shared Stylesheet
   Mobile-first · WCAG AA · AdSense-ready
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,400&family=DM+Mono:wght@400;500&display=swap');

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

:root {
  --ink:      #0a0a0f;
  --ink2:     #3a3a48;
  --ink3:     #7a7a8c;
  --paper:    #f5f3ee;
  --paper2:   #ede9e0;
  --paper3:   #e4e0d5;
  --white:    #ffffff;
  --accent:   #c8392b;
  --accent2:  #e8b84b;
  --card-r:   12px;
  --max-w:    1200px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--paper);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

/* --- Skip Link (Accessibility) --- */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: var(--accent);
  color: var(--white);
  padding: 0.5rem 1rem;
  border-radius: 4px;
  font-size: 0.85rem;
  z-index: 9999;
  transition: top 0.2s;
}
.skip-link:focus { top: 1rem; }

/* --- Navigation --- */
.site-nav {
  background: var(--ink);
  position: sticky;
  top: 0;
  z-index: 200;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.5rem;
  gap: 1rem;
}
.nav-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.3rem;
  color: var(--white);
  letter-spacing: 2px;
  text-decoration: none;
  flex-shrink: 0;
}
.nav-logo span { color: var(--accent); }

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 6px;
  color: var(--white);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.3rem 0.6rem;
  line-height: 1;
}
.nav-menu {
  display: flex;
  list-style: none;
  gap: 0.2rem;
  flex-wrap: wrap;
}
.nav-menu a {
  display: block;
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  font-size: 0.72rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 0.4rem 0.6rem;
  border-radius: 6px;
  transition: color 0.2s, background 0.2s;
  font-family: 'DM Mono', monospace;
}
.nav-menu a:hover,
.nav-menu a.active { color: var(--white); background: rgba(255,255,255,0.08); }
.nav-menu a.active { color: var(--accent2); }

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--ink);
    flex-direction: column;
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.08);
    gap: 0.1rem;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a { font-size: 0.9rem; padding: 0.7rem 0.5rem; }
}

/* --- Ad Containers (AdSense-ready) --- */
.ad-container {
  width: 100%;
  text-align: center;
  padding: 0.5rem 0;
  overflow: hidden;
}
.ad-container[data-ad-slot]::before {
  content: 'Advertisement';
  display: block;
  font-family: 'DM Mono', monospace;
  font-size: 0.6rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: 0.3rem;
}
/* Development placeholder */
.ad-placeholder {
  background: var(--paper2);
  border: 1px dashed var(--paper3);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--ink3);
  font-family: 'DM Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 1px;
  margin: 0 auto;
  padding: 1rem;
}
.ad-leaderboard { width: 728px; height: 90px; max-width: 100%; }
.ad-rectangle  { width: 300px; height: 250px; }
.ad-banner     { width: 320px; height: 50px; max-width: 100%; }

/* --- Footer --- */
.site-footer {
  background: var(--ink);
  color: rgba(255,255,255,0.35);
  padding: 2rem 1.5rem;
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
.footer-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.2rem;
  color: var(--white);
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}
.footer-logo span { color: var(--accent); }
.footer-desc { font-size: 0.82rem; line-height: 1.7; max-width: 300px; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 0.4rem; }
.footer-links a {
  color: rgba(255,255,255,0.4);
  text-decoration: none;
  font-size: 0.8rem;
  font-family: 'DM Mono', monospace;
  letter-spacing: 1px;
  transition: color 0.2s;
}
.footer-links a:hover { color: var(--accent2); }
.footer-bottom {
  max-width: var(--max-w);
  margin: 0 auto;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.72rem;
  font-family: 'DM Mono', monospace;
  letter-spacing: 0.5px;
}

@media (max-width: 640px) {
  .footer-inner { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .site-footer { padding: 2rem 1rem; }
  .container { padding: 0 1rem; }
}

/* --- Utility --- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 3.5rem 0; }
.section-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: 0.4rem;
}
.section-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2rem, 5vw, 3rem);
  letter-spacing: 1px;
  line-height: 1;
  margin-bottom: 2rem;
}

/* --- Countdown unit --- */
.countdown-strip {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
}
.cd-unit {
  flex: 1;
  background: rgba(255,255,255,0.08);
  border-radius: 8px;
  padding: 0.6rem 0.3rem;
  text-align: center;
}
.cd-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2rem, 6vw, 3rem);
  line-height: 1;
  display: block;
}
.cd-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.55rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: 0.5;
}