/* ============================================================
   GB7 MEETUP — Design system + landing page styles
   Mobile-first, accessible, framework-free.
   ============================================================ */

/* ---------- Design tokens ---------- */
:root {
  /* Brand palette — warm gold text, white background, charcoal secondary.
     (Legacy --brand-* names kept so existing component rules resolve.) */
  --brand-teal: #978668;          /* main gold */
  --brand-teal-strong: #7a6a4d;   /* darker gold — links & hover (readable on white) */
  --brand-indigo: #333333;        /* charcoal secondary */
  --accent: #978668;

  /* Neutrals (light) */
  --bg: #ffffff;
  --surface: #faf8f4;             /* warm off-white */
  --surface-2: #f1ece3;
  --border: #e7e0d3;
  --text: #978668;                /* main text = gold */
  --heading: #333333;             /* headings = charcoal secondary */
  --text-muted: #797263;          /* muted warm grey (readable) */
  --text-invert: #ffffff;

  /* Semantic */
  --success: #4f7a2f;
  --warning: #9a6b1a;
  --danger: #a5342a;

  /* Marker colours (functional — kept distinct for the map) */
  --pin-local: #7a6a4d;
  --pin-travel: #333333;
  --pin-event: #b07a2e;
  --pin-post: #978668;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, "Apple Color Emoji", sans-serif;
  --fs-100: 0.8125rem;
  --fs-200: 0.9375rem;
  --fs-300: 1rem;
  --fs-400: 1.125rem;
  --fs-500: 1.375rem;
  --fs-600: 1.75rem;
  --fs-700: 2.25rem;
  --fs-800: clamp(2.25rem, 5vw, 3.5rem);
  --lh-tight: 1.15;
  --lh-body: 1.6;

  /* Spacing scale */
  --sp-1: 0.25rem; --sp-2: 0.5rem; --sp-3: 0.75rem; --sp-4: 1rem;
  --sp-5: 1.5rem; --sp-6: 2rem; --sp-7: 3rem; --sp-8: 4rem; --sp-9: 6rem;

  /* Radius & shadow */
  --radius-sm: 8px; --radius: 14px; --radius-lg: 22px; --radius-pill: 999px;
  --shadow-sm: 0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.1);
  --shadow-md: 0 4px 16px rgba(16,24,40,.08);
  --shadow-lg: 0 24px 48px -12px rgba(16,24,40,.18);

  --gradient-brand: linear-gradient(135deg, #3d3d3d 0%, #262626 100%); /* charcoal — buttons, CTA, step numbers */
  --container: 1120px;
  --focus: 0 0 0 3px rgba(151,134,104,.5);
}

/* The warm white/gold theme is intentionally used in both light and dark OS modes
   (white background on request), so there is no dark-scheme palette override. */

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}
body {
  font-family: var(--font-sans);
  font-size: var(--fs-300);
  line-height: var(--lh-body);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3 { line-height: var(--lh-tight); font-weight: 750; letter-spacing: -0.01em; color: var(--heading); }
p { color: var(--text); }  /* main text = gold */
a { color: var(--brand-teal-strong); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { max-width: 100%; display: block; }
:focus-visible { outline: none; box-shadow: var(--focus); border-radius: var(--radius-sm); }

/* ---------- Utilities ---------- */
.container { width: min(100% - 2.5rem, var(--container)); margin-inline: auto; }
.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;
}
.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 100;
  background: var(--text); color: var(--bg); padding: .6rem 1rem;
  border-radius: var(--radius-sm); transition: top .2s;
}
.skip-link:focus { top: 12px; text-decoration: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font: inherit; font-weight: 650; cursor: pointer;
  padding: .65rem 1.15rem; border-radius: var(--radius-pill);
  border: 1.5px solid transparent; transition: transform .12s ease, box-shadow .2s ease, background .2s ease;
  white-space: nowrap; text-decoration: none;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn--lg { padding: .85rem 1.5rem; font-size: var(--fs-400); }
.btn--primary { background: var(--gradient-brand); color: #fff; box-shadow: var(--shadow-sm); }
.btn--primary:hover { box-shadow: var(--shadow-md); }
.btn--outline { border-color: var(--heading); color: var(--heading); background: var(--bg); }
.btn--outline:hover { border-color: var(--brand-teal); color: var(--brand-teal-strong); }
.btn--ghost { color: var(--heading); background: transparent; }
.btn--ghost:hover { background: var(--surface-2); }

/* ---------- Badges ---------- */
.badge {
  display: inline-flex; align-items: center; gap: .35rem;
  font-size: var(--fs-100); font-weight: 650; letter-spacing: .01em;
  padding: .3rem .7rem; border-radius: var(--radius-pill);
}
.badge--soft { background: color-mix(in srgb, var(--brand-teal) 14%, transparent); color: var(--brand-teal-strong); }
.badge--event { background: color-mix(in srgb, var(--pin-event) 16%, transparent); color: var(--pin-event); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}
.header__inner { display: flex; align-items: center; justify-content: space-between; min-height: 68px; gap: 1rem; }
.brand { display: inline-flex; align-items: center; gap: .55rem; color: var(--text); font-weight: 700; }
.brand__logo { height: 34px; width: auto; display: block; }
@media (max-width: 520px) { .brand__logo { height: 28px; } }
.brand:hover { text-decoration: none; }
.brand__text { font-size: var(--fs-400); letter-spacing: -0.02em; }
.brand__text strong { color: var(--brand-teal-strong); }

.primary-nav { display: flex; align-items: center; gap: 1.5rem; }
.primary-nav__list { display: flex; align-items: center; gap: 1.25rem; list-style: none; padding: 0; }
.primary-nav__list a { color: var(--text-muted); font-weight: 550; }
.primary-nav__list a:hover { color: var(--text); text-decoration: none; }
.header__ctas { display: flex; align-items: center; gap: .6rem; }

.nav-toggle {
  display: none; width: 44px; height: 44px; border: 1px solid var(--border);
  background: var(--bg); border-radius: var(--radius-sm); cursor: pointer; position: relative;
}
.nav-toggle__bar, .nav-toggle__bar::before, .nav-toggle__bar::after {
  content: ""; position: absolute; left: 50%; top: 50%; width: 20px; height: 2px;
  background: var(--text); transform: translate(-50%,-50%); transition: transform .2s, opacity .2s;
}
.nav-toggle__bar::before { transform: translate(-50%, -7px); }
.nav-toggle__bar::after { transform: translate(-50%, 5px); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::before { transform: translate(-50%,-50%) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar::after { transform: translate(-50%,-50%) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { padding: clamp(2.5rem, 6vw, 5rem) 0 clamp(2rem, 5vw, 4rem); overflow: hidden; }
.hero__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(1.5rem, 4vw, 3rem); align-items: center; }
.hero__title { font-size: var(--fs-800); margin: .6rem 0 .4rem; }
.hero__lead { font-size: var(--fs-400); color: var(--text); max-width: 34ch; }
.hero__note {
  margin-top: 1rem; padding: .85rem 1rem; background: var(--surface);
  border: 1px solid var(--border); border-left: 4px solid var(--brand-teal);
  border-radius: var(--radius-sm); font-size: var(--fs-200); max-width: 46ch;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.5rem; }

/* Hero visual: phone + map mockup */
.hero__visual { display: grid; place-items: center; }
.phone {
  position: relative; width: min(300px, 78vw); aspect-ratio: 300 / 600;
  background: var(--surface-2); border: 10px solid #0b1220;
  border-radius: 40px; box-shadow: var(--shadow-lg); padding: 10px;
}
.phone__notch { position: absolute; top: 14px; left: 50%; transform: translateX(-50%); width: 42%; height: 20px; background: #0b1220; border-radius: 0 0 14px 14px; z-index: 3; }
.phone__screen { position: relative; height: 100%; border-radius: 28px; overflow: hidden; background: linear-gradient(160deg, #e8f0ef, #dfe6f5); }
.mapview { position: absolute; inset: 0; }
.mapview__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(120,140,170,.18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,140,170,.18) 1px, transparent 1px);
  background-size: 34px 34px;
}
.pin {
  position: absolute; transform: translate(-50%,-100%);
  font-size: 11px; font-weight: 650; color: #fff; white-space: nowrap;
  padding: .2rem .5rem .2rem .55rem; border-radius: var(--radius-pill);
  box-shadow: var(--shadow-sm);
}
.pin::after { content:""; position:absolute; left:14px; bottom:-5px; width:9px; height:9px; background:inherit; transform:rotate(45deg); border-radius:2px; }
.pin--local  { background: var(--pin-local); }
.pin--travel { background: var(--pin-travel); }
.pin--event  { background: var(--pin-event); }
.pin--post   { background: var(--pin-post); }
.pin--me {
  width: 18px; height: 18px; padding: 0; border-radius: 50%;
  background: var(--brand-indigo); border: 3px solid #fff; transform: translate(-50%,-50%);
}
.pin--me::after { display: none; }
.pin__pulse { position: absolute; inset: -6px; border-radius: 50%; border: 2px solid var(--brand-indigo); animation: pulse 2.2s ease-out infinite; }
@keyframes pulse { 0% { transform: scale(.6); opacity: .8; } 100% { transform: scale(2.2); opacity: 0; } }
.mapview__card {
  position: absolute; left: 12px; right: 12px; bottom: 12px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius); padding: .7rem .8rem; box-shadow: var(--shadow-md);
}
.mapview__card-title { color: var(--heading); font-weight: 650; font-size: var(--fs-200); margin-top: .25rem; }
.mapview__card-meta { font-size: var(--fs-100); }

/* Realistic app-map preview: avatar pins, traveller badge, photo polaroids */
.mapview__map { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; }
.mapview .mapview__grid { z-index: 1; }
.mpin { position: absolute; transform: translate(-50%, -50%); z-index: 2; text-align: center; }
.mpin__avatar {
  display: grid; place-items: center; width: 44px; height: 44px; margin: 0 auto;
  border-radius: 50%; color: #fff; font-weight: 700; font-size: 16px;
  border: 2.5px solid #fff; box-shadow: 0 4px 10px rgba(0,0,0,.28);
}
.mpin--travel .mpin__avatar { border-color: var(--brand-teal); }
.mpin__badge {
  position: absolute; top: 26px; left: 50%; margin-left: 6px;
  width: 20px; height: 20px; border-radius: 50%; background: var(--brand-teal);
  color: #fff; display: grid; place-items: center; font-size: 10px; border: 2px solid #fff;
}
.mpin__label {
  display: inline-block; margin-top: 5px; background: var(--bg); color: var(--heading);
  font-size: 10px; font-weight: 600; line-height: 1; padding: 3px 7px;
  border-radius: var(--radius-pill); border: 1px solid var(--border); box-shadow: var(--shadow-sm);
  white-space: nowrap;
}
.mpost {
  position: absolute; transform: translate(-50%, -50%) rotate(var(--rot, -4deg)); z-index: 2;
  width: 66px; margin: 0; padding: 5px 5px 3px; background: #fff; border-radius: 5px;
  box-shadow: 0 7px 16px rgba(0,0,0,.24);
}
.mpost__photo { display: block; width: 100%; height: 50px; border-radius: 3px; }
.mpost__cap { font-size: 9px; font-weight: 600; color: var(--heading); text-align: center; margin-top: 3px; }
.mapview__card-row { display: flex; align-items: center; gap: .6rem; }
.mapview__card-avatar {
  flex: none; width: 38px; height: 38px; border-radius: 50%; color: #fff;
  display: grid; place-items: center; font-weight: 700; font-size: 15px;
}

/* ---------- Sections ---------- */
.section { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.section--muted { background: var(--surface); border-block: 1px solid var(--border); }
.section__title { font-size: var(--fs-700); text-align: center; }
.section__lead { text-align: center; max-width: 52ch; margin: .6rem auto 0; font-size: var(--fs-400); }
.section__head { text-align: center; display: grid; justify-items: center; gap: .5rem; margin-bottom: .5rem; }

/* ---------- Cards grid ---------- */
.cards { list-style: none; padding: 0; display: grid; gap: 1.25rem; margin-top: 2.5rem; }
.cards--3 { grid-template-columns: repeat(3, 1fr); }
.cards--4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.5rem 1.35rem; box-shadow: var(--shadow-sm); transition: transform .15s ease, box-shadow .2s ease;
}
.section--muted .card { background: var(--bg); }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.card__icon { font-size: 1.8rem; display: block; margin-bottom: .5rem; }
.card__title { font-size: var(--fs-400); margin-bottom: .3rem; color: var(--heading); }
.card p { font-size: var(--fs-200); }
.cards--safety .card { border-top: 3px solid var(--brand-teal); }

/* ---------- Steps ---------- */
.steps { list-style: none; padding: 0; counter-reset: step; display: grid; gap: 1rem; margin-top: 2.5rem; grid-template-columns: repeat(5, 1fr); }
.step { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.4rem 1.2rem; box-shadow: var(--shadow-sm); }
.step__num {
  display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 50%;
  background: var(--gradient-brand); color: #fff; font-weight: 750; font-size: var(--fs-400); margin-bottom: .7rem;
}
.step__title { font-size: var(--fs-300); margin-bottom: .3rem; color: var(--heading); }
.step p { font-size: var(--fs-200); }

/* ---------- CTA ---------- */
.cta { padding: clamp(3rem, 7vw, 5.5rem) 0; }
.cta__inner {
  text-align: center; background: var(--gradient-brand); color: #fff;
  border-radius: var(--radius-lg); padding: clamp(2.5rem, 6vw, 4rem) 1.5rem; box-shadow: var(--shadow-lg);
}
.cta__title { font-size: var(--fs-700); color: #fff; }
.cta__lead { color: rgba(255,255,255,.9); font-size: var(--fs-400); margin: .6rem auto 0; max-width: 40ch; }
.cta__actions { display: flex; flex-wrap: wrap; gap: .75rem; justify-content: center; margin-top: 1.6rem; }
.cta .btn--primary { background: #fff; color: var(--brand-teal-strong); }
.cta .btn--outline { border-color: rgba(255,255,255,.6); color: #fff; background: transparent; }
.cta .btn--outline:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,.12); }
.cta__fineprint { color: rgba(255,255,255,.85); font-size: var(--fs-100); margin-top: 1rem; }

/* ---------- Footer ---------- */
.site-footer { background: var(--surface); border-top: 1px solid var(--border); padding-top: clamp(2.5rem, 5vw, 3.5rem); }
.footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 2rem; }
.footer__tag { font-size: var(--fs-200); margin-top: .5rem; max-width: 30ch; }
.footer__heading { font-size: var(--fs-100); text-transform: uppercase; letter-spacing: .06em; color: var(--text-muted); margin-bottom: .8rem; }
.footer__col ul { list-style: none; padding: 0; display: grid; gap: .5rem; }
.footer__col a { color: var(--text); font-size: var(--fs-200); }
.footer__col a:hover { color: var(--brand-teal-strong); }
.footer__bottom {
  display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; justify-content: space-between;
  border-top: 1px solid var(--border); margin-top: 2.5rem; padding-block: 1.25rem 1.75rem;
}
.footer__bottom p { font-size: var(--fs-100); }

/* ---------- Legal / prose pages ---------- */
.legal-header { border-bottom: 1px solid var(--border); }
.legal-header .header__inner { min-height: 68px; display: flex; align-items: center; }
.prose { max-width: 72ch; margin-inline: auto; padding: clamp(2rem, 5vw, 3.5rem) 0 4rem; }
.prose h1 { font-size: var(--fs-700); margin-bottom: .5rem; }
.prose h2 { font-size: var(--fs-500); margin: 2rem 0 .5rem; color: var(--heading); }
.prose p, .prose li { color: var(--text-muted); font-size: var(--fs-300); }
.prose ul { padding-left: 1.25rem; display: grid; gap: .35rem; margin: .5rem 0; }
.prose a { color: var(--brand-teal-strong); }
.notice {
  background: color-mix(in srgb, var(--warning) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--warning) 40%, transparent);
  border-radius: var(--radius-sm); padding: .9rem 1.1rem; margin-bottom: 1.5rem;
}
.notice p { color: var(--text); font-size: var(--fs-200); margin: 0; }
.prose__meta { color: var(--text-muted); font-size: var(--fs-100); margin-bottom: 1.5rem; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .cards--4 { grid-template-columns: repeat(2, 1fr); }
  .cards--3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .hero__grid { grid-template-columns: 1fr; }
  .hero__visual { order: -1; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .primary-nav {
    position: absolute; inset: 68px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--border);
    padding: .5rem 1.25rem 1.25rem; box-shadow: var(--shadow-md);
    display: none;
  }
  .primary-nav.is-open { display: flex; }
  .primary-nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .primary-nav__list li { border-bottom: 1px solid var(--border); }
  .primary-nav__list a { display: block; padding: .85rem .25rem; }
  .header__ctas { margin-top: .85rem; }
  .header__ctas .btn { flex: 1; }
}
@media (max-width: 520px) {
  .cards--4, .cards--3, .steps { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; }
}