/* ============================================================
   Zihuatanejo Run Club — Coastal Mexican run-club identity
   Sunset coral + ocean teal over warm sand. Light & dark.
   ============================================================ */

:root,
[data-theme='light'] {
  /* Surfaces — warm sand */
  --color-bg: #faf5ec;
  --color-surface: #fffdf8;
  --color-surface-2: #fff8ee;
  --color-surface-offset: #f3ead9;
  --color-divider: #e9dcc6;
  --color-border: #e2d2b8;

  /* Text — deep navy */
  --color-text: #152630;
  --color-text-muted: #5a6b74;
  --color-text-faint: #9aa6ac;
  --color-text-inverse: #fffdf8;

  /* Primary — ocean teal */
  --color-primary: #0a5466;
  --color-primary-hover: #073d4b;
  --color-primary-active: #052b36;
  --color-primary-highlight: #d4e6ea;

  /* Accent — sunset coral */
  --color-accent: #ef6a3c;
  --color-accent-hover: #d8542a;
  --color-accent-active: #b8421b;
  --color-accent-highlight: #fbe3d6;

  /* Supporting — pacific sky + sun gold */
  --color-sky: #2a8aa3;
  --color-gold: #e3a93a;

  --radius-sm: 0.5rem;
  --radius-md: 0.85rem;
  --radius-lg: 1.25rem;
  --radius-xl: 1.75rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px oklch(0.25 0.02 60 / 0.07);
  --shadow-md: 0 6px 20px oklch(0.25 0.03 60 / 0.10);
  --shadow-lg: 0 18px 50px oklch(0.25 0.04 50 / 0.16);

  --font-display: 'Boska', 'Georgia', serif;
  --font-body: 'General Sans', 'Inter', system-ui, sans-serif;

  /* Image filter for warmth/unity */
  --img-tint: saturate(1.05) contrast(1.02);
}

[data-theme='dark'] {
  --color-bg: #0d1a20;
  --color-surface: #12242c;
  --color-surface-2: #16303a;
  --color-surface-offset: #15303a;
  --color-divider: #1f3a44;
  --color-border: #274752;

  --color-text: #e9f1f2;
  --color-text-muted: #9fb4ba;
  --color-text-faint: #5e737a;
  --color-text-inverse: #12242c;

  --color-primary: #57c2d4;
  --color-primary-hover: #7dd2e2;
  --color-primary-active: #9bdcea;
  --color-primary-highlight: #1b3942;

  --color-accent: #ff8a5c;
  --color-accent-hover: #ffa07a;
  --color-accent-active: #ffb59a;
  --color-accent-highlight: #3a2418;

  --color-sky: #6fc0d4;
  --color-gold: #f0c35a;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 6px 20px oklch(0 0 0 / 0.4);
  --shadow-lg: 0 18px 50px oklch(0 0 0 / 0.5);

  --img-tint: saturate(0.92) contrast(1.04) brightness(0.9);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0d1a20;
    --color-surface: #12242c;
    --color-surface-2: #16303a;
    --color-surface-offset: #15303a;
    --color-divider: #1f3a44;
    --color-border: #274752;
    --color-text: #e9f1f2;
    --color-text-muted: #9fb4ba;
    --color-text-faint: #5e737a;
    --color-text-inverse: #12242c;
    --color-primary: #57c2d4;
    --color-primary-hover: #7dd2e2;
    --color-primary-active: #9bdcea;
    --color-primary-highlight: #1b3942;
    --color-accent: #ff8a5c;
    --color-accent-hover: #ffa07a;
    --color-accent-active: #ffb59a;
    --color-accent-highlight: #3a2418;
    --color-sky: #6fc0d4;
    --color-gold: #f0c35a;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
    --shadow-md: 0 6px 20px oklch(0 0 0 / 0.4);
    --shadow-lg: 0 18px 50px oklch(0 0 0 / 0.5);
  }
}

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

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-16, 4rem);
}

:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.15rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.6vw, 3.5rem);
  --text-hero: clamp(2.8rem, 0.8rem + 6.5vw, 6.5rem);

  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem;
  --space-4: 1rem; --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem; --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem; --space-20: 5rem; --space-24: 6rem;
  --space-32: 8rem;

  --content-narrow: 680px;
  --content-default: 1080px;
  --content-wide: 1240px;

  --transition: 200ms cubic-bezier(0.16, 1, 0.3, 1);
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

img, picture, video, svg { display: block; max-width: 100%; height: auto; }
ul[role='list'], ol[role='list'] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }

h1, h2, h3, h4 { text-wrap: balance; line-height: 1.08; }
p, li { text-wrap: pretty; max-width: 72ch; }

::selection { background: color-mix(in oklab, var(--color-accent) 30%, transparent); color: var(--color-text); }

:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

button { cursor: pointer; background: none; border: none; }
a, button, [role='button'] { transition: color var(--transition), background var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition); }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* ---------------- layout helpers ---------------- */
.container { width: 100%; max-width: var(--content-default); margin-inline: auto; padding-inline: clamp(var(--space-4), 5vw, var(--space-10)); }
.section { padding-block: clamp(var(--space-12), 7vw, var(--space-24)); }

.eyebrow {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.eyebrow::before { content: ''; width: 1.5rem; height: 2px; background: var(--color-accent); display: inline-block; }

.section-title { font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 500; letter-spacing: -0.01em; }
.lead { font-size: var(--text-lg); color: var(--color-text-muted); line-height: 1.5; }

/* ---------------- header ---------------- */
.header {
  position: sticky; top: 0; z-index: 60;
  background: color-mix(in oklab, var(--color-bg) 82%, transparent);
  backdrop-filter: blur(14px) saturate(1.1);
  -webkit-backdrop-filter: blur(14px) saturate(1.1);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.header--scrolled { border-bottom-color: var(--color-border); box-shadow: var(--shadow-sm); }
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); height: clamp(3.75rem, 8vw, 4.75rem); }
.brand { display: inline-flex; align-items: center; gap: var(--space-3); text-decoration: none; color: var(--color-text); }
.brand__mark { width: clamp(2rem, 5vw, 2.5rem); height: clamp(2rem, 5vw, 2.5rem); color: var(--color-primary); }
.brand__name { font-family: var(--font-display); font-weight: 600; font-size: var(--text-lg); letter-spacing: -0.01em; line-height: 1; }
.brand__name small { display: block; font-family: var(--font-body); font-size: var(--text-xs); font-weight: 500; letter-spacing: 0.16em; text-transform: uppercase; color: var(--color-text-muted); margin-top: 2px; }

.nav { display: none; gap: var(--space-8); align-items: center; }
.nav a { font-size: var(--text-sm); font-weight: 500; color: var(--color-text-muted); text-decoration: none; }
.nav a:hover { color: var(--color-text); }
.header__actions { display: flex; align-items: center; gap: var(--space-2); }

.icon-btn {
  width: 2.5rem; height: 2.5rem;
  display: inline-grid; place-items: center;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  border: 1px solid transparent;
}
.icon-btn:hover { color: var(--color-text); background: var(--color-surface-offset); }
.lang-toggle { font-size: var(--text-xs); font-weight: 700; letter-spacing: 0.05em; padding: 0 var(--space-1); }

@media (min-width: 760px) {
  .nav { display: flex; }
}

/* ---------------- buttons ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  font-size: var(--text-sm); font-weight: 600; letter-spacing: 0.01em;
  padding: 0.85rem 1.4rem; border-radius: var(--radius-full);
  text-decoration: none; line-height: 1; white-space: nowrap;
}
.btn svg { width: 1.1em; height: 1.1em; }
.btn--primary { background: var(--color-primary); color: var(--color-text-inverse); box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--color-primary-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--accent { background: var(--color-accent); color: #fff; box-shadow: var(--shadow-sm); }
.btn--accent:hover { background: var(--color-accent-hover); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--ghost { background: var(--color-surface); color: var(--color-text); border: 1px solid var(--color-border); }
.btn--ghost:hover { border-color: var(--color-text-muted); transform: translateY(-2px); }
.btn--on-photo { background: rgba(255,253,248,0.92); color: var(--color-primary-hover); backdrop-filter: blur(4px); }
.btn--on-photo:hover { background: #fff; transform: translateY(-2px); }
.btn--lg { padding: 1rem 1.6rem; font-size: var(--text-base); }

/* ---------------- hero ---------------- */
.hero { position: relative; min-height: clamp(560px, 92vh, 860px); display: flex; align-items: flex-end; overflow: hidden; }
.hero__media { position: absolute; inset: 0; z-index: -2; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; filter: var(--img-tint); }
.hero__media::after {
  content: ''; position: absolute; inset: 0;
  background:
    linear-gradient(to top, color-mix(in oklab, var(--color-bg) 92%, transparent) 2%, transparent 55%),
    linear-gradient(to right, color-mix(in oklab, #07232b 60%, transparent), transparent 60%);
}
.hero__accent { position: absolute; inset: 0; z-index: -1; background: radial-gradient(120% 80% at 80% 10%, color-mix(in oklab, var(--color-accent) 22%, transparent), transparent 55%); pointer-events: none; }
.hero__inner { padding-block: clamp(var(--space-12), 6vw, var(--space-20)); position: relative; }
.hero__badge {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase;
  color: #fff; background: color-mix(in oklab, var(--color-accent) 88%, transparent);
  padding: 0.5rem 0.9rem; border-radius: var(--radius-full); margin-bottom: var(--space-5);
  box-shadow: var(--shadow-sm);
}
.hero__badge .dot { width: 0.5rem; height: 0.5rem; border-radius: 50%; background: #fff; animation: pulse 2.4s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1);} 50% { opacity: 0.5; transform: scale(0.8);} }
.hero h1 {
  font-family: var(--font-display); font-weight: 600;
  font-size: var(--text-hero); line-height: 0.98; letter-spacing: -0.02em;
  color: #fff; max-width: 14ch; text-shadow: 0 2px 30px oklch(0.2 0.03 250 / 0.4);
}
.hero h1 em { font-style: italic; color: var(--color-accent); }
.hero__tagline { margin-top: var(--space-5); font-size: var(--text-lg); color: #fdf6ec; max-width: 46ch; line-height: 1.4; text-shadow: 0 1px 12px oklch(0.1 0.03 250 / 0.5); }
.hero__cta { margin-top: var(--space-8); display: flex; flex-wrap: wrap; gap: var(--space-3); }
.hero__meta { margin-top: var(--space-8); display: flex; flex-wrap: wrap; gap: var(--space-6); color: #fdf6ec; font-size: var(--text-sm); }
.hero__meta span { display: inline-flex; align-items: center; gap: var(--space-2); }
.hero__meta svg { width: 1.1em; height: 1.1em; color: var(--color-accent); }

/* ---------------- info strip ---------------- */
.strip { background: var(--color-primary); color: var(--color-text-inverse); }
.strip__inner { display: grid; grid-template-columns: 1fr; gap: var(--space-4); padding-block: var(--space-6); }
.strip__item { display: flex; align-items: center; gap: var(--space-3); justify-content: center; text-align: center; }
.strip__item svg { width: 1.4rem; height: 1.4rem; color: var(--color-accent); flex-shrink: 0; }
.strip__item strong { display: block; font-size: var(--text-base); font-weight: 700; }
.strip__item span { font-size: var(--text-xs); opacity: 0.8; letter-spacing: 0.04em; }
@media (min-width: 760px) {
  .strip__inner { grid-template-columns: repeat(4, 1fr); }
  .strip__item { justify-content: flex-start; text-align: left; }
}

/* ---------------- about ---------------- */
.about__grid { display: grid; grid-template-columns: 1fr; gap: clamp(var(--space-8), 6vw, var(--space-16)); align-items: center; }
@media (min-width: 880px) { .about__grid { grid-template-columns: 1.05fr 0.95fr; } }
.about__media { position: relative; }
.about__media img { width: 100%; aspect-ratio: 4/3; object-fit: cover; border-radius: var(--radius-lg); filter: var(--img-tint); box-shadow: var(--shadow-lg); }
.about__media::after { content: ''; position: absolute; inset: auto -0.75rem -0.75rem auto; width: 40%; aspect-ratio: 1; border: 2px solid var(--color-accent); border-radius: var(--radius-lg); z-index: -1; }
.about__pillars { margin-top: var(--space-6); display: flex; flex-wrap: wrap; gap: var(--space-3); }
.pillar { display: inline-flex; align-items: center; gap: var(--space-2); font-size: var(--text-sm); font-weight: 600; padding: 0.5rem 1rem; border-radius: var(--radius-full); background: var(--color-surface-offset); color: var(--color-primary); }
.pillar svg { width: 1.1em; height: 1.1em; }

/* ---------------- run with us ---------------- */
.runwith { background: var(--color-surface-offset); }
.runwith__grid { display: grid; grid-template-columns: 1fr; gap: var(--space-6); margin-top: var(--space-10); }
@media (min-width: 720px) { .runwith__grid { grid-template-columns: repeat(3, 1fr); } }
.runcard { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-8); display: flex; flex-direction: column; gap: var(--space-3); }
.runcard__icon { width: 3rem; height: 3rem; display: grid; place-items: center; border-radius: var(--radius-md); background: color-mix(in oklab, var(--color-accent) 14%, transparent); color: var(--color-accent); margin-bottom: var(--space-2); }
.runcard__icon svg { width: 1.6rem; height: 1.6rem; }
.runcard h3 { font-family: var(--font-display); font-size: var(--text-lg); font-weight: 600; }
.runcard p { font-size: var(--text-sm); color: var(--color-text-muted); }
.runcard a { margin-top: auto; font-size: var(--text-sm); font-weight: 600; color: var(--color-primary); text-decoration: none; display: inline-flex; align-items: center; gap: var(--space-2); }
.runcard a:hover { color: var(--color-accent); gap: var(--space-3); }

/* ---------------- feature story ---------------- */
.feature { background: var(--color-bg); }
.feature__card { display: grid; grid-template-columns: 1fr; gap: 0; background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-md); }
@media (min-width: 820px) { .feature__card { grid-template-columns: 1.1fr 1fr; } }
.feature__media { position: relative; min-height: 260px; }
.feature__media img { width: 100%; height: 100%; object-fit: cover; filter: var(--img-tint); position: absolute; inset: 0; }
.feature__body { padding: clamp(var(--space-8), 4vw, var(--space-12)); display: flex; flex-direction: column; gap: var(--space-4); justify-content: center; }
.feature__body h3 { font-family: var(--font-display); font-size: var(--text-xl); font-weight: 500; }
.feature__body p { color: var(--color-text-muted); }

/* ---------------- connect cards ---------------- */
.connect__grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); margin-top: var(--space-10); }
@media (min-width: 620px) { .connect__grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 940px) { .connect__grid { grid-template-columns: repeat(3, 1fr); } }
.connect__grid .connect-card:nth-child(1) { grid-column: span 2; }
@media (min-width: 620px) { .connect__grid .connect-card:nth-child(1) { grid-column: span 1; } }
.connect-card {
  position: relative; display: flex; flex-direction: column; gap: var(--space-2);
  padding: var(--space-6); border-radius: var(--radius-lg);
  background: var(--color-surface); border: 1px solid var(--color-border);
  text-decoration: none; color: var(--color-text); overflow: hidden;
  min-height: 9.5rem; justify-content: flex-end;
}
.connect-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: transparent; }
.connect-card__icon { position: absolute; top: var(--space-5); left: var(--space-5); width: 1.8rem; height: 1.8rem; color: var(--color-primary); }
.connect-card:hover .connect-card__icon { color: var(--color-accent); }
.connect-card h3 { font-size: var(--text-base); font-weight: 700; }
.connect-card span { font-size: var(--text-xs); color: var(--color-text-muted); }
.connect-card__arrow { position: absolute; top: var(--space-5); right: var(--space-5); width: 1.1rem; height: 1.1rem; color: var(--color-text-faint); }
.connect-card:hover .connect-card__arrow { color: var(--color-accent); transform: translate(2px,-2px); }

/* ---------------- FAQ ---------------- */
.faq { background: var(--color-surface-offset); }
.faq__list { margin-top: var(--space-10); display: flex; flex-direction: column; gap: var(--space-3); max-width: var(--content-narrow); }
details.faq-item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); overflow: hidden; }
details.faq-item summary { list-style: none; cursor: pointer; padding: var(--space-5) var(--space-6); font-weight: 600; font-size: var(--text-base); display: flex; justify-content: space-between; align-items: center; gap: var(--space-4); }
details.faq-item summary::-webkit-details-marker { display: none; }
details.faq-item summary .chev { width: 1.2rem; height: 1.2rem; flex-shrink: 0; color: var(--color-accent); transition: transform var(--transition); }
details.faq-item[open] summary .chev { transform: rotate(45deg); }
details.faq-item .faq-item__body { padding: 0 var(--space-6) var(--space-6); color: var(--color-text-muted); font-size: var(--text-sm); }

/* ---------------- CTA band ---------------- */
.cta-band { position: relative; overflow: hidden; color: #fdf6ec; text-align: center; }
.cta-band__media { position: absolute; inset: 0; z-index: -2; }
.cta-band__media img { width: 100%; height: 100%; object-fit: cover; filter: var(--img-tint); }
.cta-band::after { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(to bottom, color-mix(in oklab, #07232b 72%, transparent), color-mix(in oklab, #07232b 88%, transparent)); }
.cta-band__inner { padding-block: clamp(var(--space-16), 8vw, var(--space-24)); max-width: var(--content-narrow); margin-inline: auto; }
.cta-band h2 { font-family: var(--font-display); font-size: var(--text-2xl); font-weight: 600; color: #fff; }
.cta-band p { margin-top: var(--space-4); color: #fde9d8; font-size: var(--text-lg); }
.cta-band .hero__cta { justify-content: center; margin-top: var(--space-8); }

/* ---------------- footer ---------------- */
.footer { background: var(--color-primary-active); color: var(--color-text-inverse); }
.footer__inner { padding-block: clamp(var(--space-10), 5vw, var(--space-16)); display: grid; grid-template-columns: 1fr; gap: var(--space-10); }
@media (min-width: 720px) { .footer__inner { grid-template-columns: 1.4fr 1fr 1fr; } }
.footer .brand { color: var(--color-text-inverse); }
.footer .brand__mark { color: var(--color-accent); }
.footer .brand__name small { color: color-mix(in oklab, var(--color-text-inverse) 70%, transparent); }
.footer__about { margin-top: var(--space-4); font-size: var(--text-sm); color: color-mix(in oklab, var(--color-text-inverse) 72%, transparent); max-width: 38ch; }
.footer h4 { font-size: var(--text-xs); letter-spacing: 0.16em; text-transform: uppercase; color: color-mix(in oklab, var(--color-text-inverse) 60%, transparent); margin-bottom: var(--space-4); }
.footer ul { display: flex; flex-direction: column; gap: var(--space-3); }
.footer ul a { font-size: var(--text-sm); color: color-mix(in oklab, var(--color-text-inverse) 82%, transparent); text-decoration: none; }
.footer ul a:hover { color: var(--color-accent); }
.footer__bottom { border-top: 1px solid color-mix(in oklab, var(--color-text-inverse) 16%, transparent); padding-block: var(--space-6); display: flex; flex-wrap: wrap; gap: var(--space-3); justify-content: space-between; align-items: center; font-size: var(--text-xs); color: color-mix(in oklab, var(--color-text-inverse) 60%, transparent); }
.footer__socials { display: flex; gap: var(--space-2); }
.footer__socials a { width: 2.25rem; height: 2.25rem; display: grid; place-items: center; border-radius: 50%; border: 1px solid color-mix(in oklab, var(--color-text-inverse) 20%, transparent); color: color-mix(in oklab, var(--color-text-inverse) 85%, transparent); }
.footer__socials a:hover { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }
.footer__socials svg { width: 1.1rem; height: 1.1rem; }

/* ---------------- reveal animation ---------------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1); }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } }