/* ============================================================
   Sigma Nu — Gamma Upsilon Chapter (University of Arkansas)
   Rough draft stylesheet
   Palette: warm black / antique gold / parchment / white
   Type: Marcellus (display) + Source Sans 3 (body)
   ============================================================ */

:root {
  /* Arkansas Razorback theme: Cardinal red + black + white */
  --ink:        #14100F;   /* near-black */
  --ink-2:      #201817;   /* charcoal panel */
  --gold:       #9D2235;   /* Cardinal red (Arkansas primary accent) */
  --gold-soft:  #E24A5B;   /* bright cardinal for text/hover on dark */
  --parchment:  #F6F1EE;   /* warm off-white section bg */
  --paper:      #FFFFFF;
  --muted:      #6A5F5C;   /* muted body text on light */
  --muted-dk:   #C2ABA8;   /* muted text on dark */
  --line:       rgba(157,34,53,0.40); /* cardinal hairline */

  --maxw: 1120px;
  --serif: "Marcellus", Georgia, "Times New Roman", serif;
  --sans:  "Source Sans 3", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

/* ---------- Reset-ish ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }

/* ---------- Layout helpers ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section--parchment { background: var(--parchment); }
.section--dark { background: var(--ink); color: var(--parchment); }

.eyebrow {
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--gold);
  margin: 0 0 14px;
}
h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.12; letter-spacing: 0.01em; }
h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); margin: 0 0 20px; }
h3 { font-size: 1.4rem; margin: 0 0 10px; }
p { margin: 0 0 18px; }
.lead { font-size: 1.2rem; color: var(--muted); max-width: 62ch; }
.section--dark .lead { color: var(--muted-dk); }

/* Thin gold rule used as a recurring motif */
.rule { width: 64px; height: 2px; background: var(--gold); border: 0; margin: 0 0 26px; }
.rule--center { margin-left: auto; margin-right: auto; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(20,17,14,0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; padding: 14px 24px; max-width: var(--maxw); margin: 0 auto;
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--parchment); }
.brand__mark {
  font-family: var(--serif); font-size: 1.5rem; color: var(--gold);
  border: 1px solid var(--line); width: 44px; height: 44px;
  display: grid; place-items: center; letter-spacing: 0.02em;
}
.brand__logo {
  height: 34px; width: auto; display: block;
  background: #fff; padding: 4px 8px; border-radius: 5px;
}
.brand__text { display: flex; flex-direction: column; line-height: 1.1; }
.brand__name { font-family: var(--serif); font-size: 1.05rem; }
.brand__sub  { font-size: 0.68rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted-dk); }

.nav__links { display: flex; align-items: center; gap: 20px; list-style: none; margin: 0; padding: 0; flex-wrap: wrap; justify-content: flex-end; }
.nav__links a {
  text-decoration: none; color: var(--parchment); font-size: 0.9rem;
  letter-spacing: 0.08em; text-transform: uppercase; padding: 6px 0;
  border-bottom: 2px solid transparent; transition: border-color .2s, color .2s;
}
.nav__links a:hover, .nav__links a[aria-current="page"] { color: var(--gold-soft); border-bottom-color: var(--gold); }
.nav__fb {
  border: 1px solid var(--gold) !important; color: var(--gold) !important;
  padding: 8px 16px !important; border-radius: 2px; text-transform: uppercase;
}
.nav__fb:hover { background: var(--gold); color: var(--ink) !important; }

/* Hamburger button — hidden on desktop, shown on mobile */
.nav__toggle {
  display: none; /* hidden until mobile breakpoint */
  background: none; border: 1px solid var(--line);
  color: var(--parchment); cursor: pointer;
  width: 44px; height: 44px; border-radius: 4px;
  font-size: 1.5rem; line-height: 1; padding: 0;
}
.nav__toggle:hover { color: var(--gold-soft); border-color: var(--gold); }

/* Mobile nav: collapse links behind the hamburger */
@media (max-width: 760px) {
  .nav { flex-wrap: wrap; }
  .nav__toggle { display: block; }
  .nav__links {
    display: none; /* closed by default */
    width: 100%; flex-direction: column; align-items: center;
    gap: 20px; padding: 20px 0 8px;
  }
  .nav__links.is-open { display: flex; } /* JS adds this class to open */
}

/* ---------- Hero ---------- */
.hero {
  position: relative; color: var(--parchment);
  min-height: 78vh; display: grid; place-items: center; text-align: center;
  /* Chapter-house photo with a dark overlay so the text stays readable.
     The gradient sits ON TOP of the photo (first layer = top). */
  background-image:
    linear-gradient(180deg, rgba(20,16,15,0.55), rgba(20,16,15,0.82)),
    url("../images/hero.jpg");
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.hero__inner { padding: 96px 24px; max-width: 820px; }
.hero__seal {
  font-family: var(--serif); color: var(--gold); font-size: 0.8rem;
  letter-spacing: 0.3em; text-transform: uppercase; margin-bottom: 22px;
}
.hero h1 { font-size: clamp(2.6rem, 7vw, 5rem); margin: 0 0 6px; }
.hero__chapter { font-size: clamp(1rem, 2.4vw, 1.3rem); letter-spacing: 0.14em; text-transform: uppercase; color: var(--gold-soft); margin: 0 0 26px; }
.hero__tag { font-size: 1.15rem; color: var(--muted-dk); max-width: 46ch; margin: 0 auto 34px; }
.hero__photo-note {
  position: absolute; bottom: 14px; left: 0; right: 0; text-align: center;
  font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: rgba(255,255,255,0.35);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; font-family: var(--sans); font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em; font-size: 0.85rem;
  text-decoration: none; padding: 14px 30px; border-radius: 2px;
  transition: transform .15s, background .2s, color .2s;
}
.btn--gold { background: var(--gold); color: var(--ink); }
.btn--gold:hover { background: var(--gold-soft); transform: translateY(-2px); }
.btn--ghost { border: 1px solid var(--gold); color: var(--gold); }
.btn--ghost:hover { background: var(--gold); color: var(--ink); }

/* ---------- Cards (home nav + events) ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--paper); border: 1px solid rgba(20,17,14,0.08);
  padding: 34px 28px; text-decoration: none; color: var(--ink);
  transition: transform .18s, box-shadow .2s, border-color .2s;
  position: relative;
}
.card::before { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 3px; background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform .25s; }
.card:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(20,17,14,0.12); }
.card:hover::before { transform: scaleX(1); }
.card__no { font-family: var(--serif); color: var(--gold); font-size: 1rem; letter-spacing: 0.2em; }
.card h3 { margin: 12px 0 8px; }
.card p { color: var(--muted); font-size: 0.98rem; margin: 0; }
.section--parchment .card { background: var(--paper); }

.cards--two { grid-template-columns: repeat(2, 1fr); }

@media (max-width: 860px) {
  .cards { grid-template-columns: 1fr; }
  .cards--two { grid-template-columns: 1fr; }
}

/* ---------- Values row ---------- */
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; text-align: center; }
.values .rule { margin-left: auto; margin-right: auto; }
.value h3 { color: var(--gold); }
@media (max-width: 760px) { .values { grid-template-columns: 1fr; gap: 30px; } }

/* ---------- Two-column prose ---------- */
.prose { max-width: 68ch; }
.prose p { color: var(--ink); }
.section--dark .prose p { color: var(--parchment); }
.note {
  border-left: 3px solid var(--gold); padding: 4px 0 4px 18px; margin: 0 0 18px;
  color: var(--muted); font-style: italic; font-size: 0.95rem;
}
.section--dark .note { color: var(--muted-dk); }

/* ---------- Gallery ---------- */
.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.tile {
  aspect-ratio: 1 / 1; background: linear-gradient(135deg, #2c2620, #14110E);
  display: grid; place-items: center; color: rgba(227,196,106,0.5);
  font-family: var(--serif); letter-spacing: 0.1em; font-size: 0.8rem;
  border: 1px solid var(--line); text-align: center; padding: 10px;
}
.tile--wide { grid-column: span 2; aspect-ratio: 2 / 1; }

/* Photos with captions + dates */
.photo {
  margin: 0; border: 1px solid var(--line);
  background: linear-gradient(135deg, #2c2620, #14110E);
  display: flex; flex-direction: column; overflow: hidden;
}
.photo img {
  width: 100%; aspect-ratio: 1 / 1; object-fit: cover;
  display: block; background: #14110E;
}
.photo figcaption {
  font-family: var(--serif); font-size: 0.74rem; line-height: 1.35;
  color: rgba(240,232,214,0.9); text-align: center;
  padding: 9px 10px 10px; flex: 1;
}
.photo-date {
  display: block; margin-top: 4px;
  font-size: 0.66rem; letter-spacing: 0.14em;
  color: var(--gold-soft); text-transform: uppercase;
}
@media (max-width: 900px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); } .tile--wide { grid-column: span 2; } }

/* ---------- Video embed ---------- */
.video-frame {
  position: relative; aspect-ratio: 16 / 9; background: var(--ink-2);
  border: 1px solid var(--line); display: grid; place-items: center;
  color: var(--muted-dk); text-align: center; padding: 20px;
}

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: var(--muted-dk); padding: 56px 0 40px; border-top: 1px solid var(--line); }
.footer-inner { display: flex; flex-wrap: wrap; gap: 20px; justify-content: space-between; align-items: center; }
.footer-brand { font-family: var(--serif); color: var(--parchment); font-size: 1.15rem; }
.footer-brand span { color: var(--gold); }
.site-footer a { color: var(--gold-soft); text-decoration: none; }
.site-footer a:hover { color: var(--gold); }
.footer-legal { font-size: 0.8rem; width: 100%; margin-top: 24px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.08); }

/* ---------- Nav CTA (Give button) ---------- */
.nav__cta {
  background: var(--gold) !important; color: var(--ink) !important;
  padding: 8px 16px !important; border-radius: 2px; text-transform: uppercase;
  font-weight: 700; border: 1px solid var(--gold) !important;
}
.nav__cta:hover { background: var(--gold-soft) !important; border-color: var(--gold-soft) !important; }

/* ---------- Giving tiers ---------- */
.tiers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 44px; }
.tier {
  background: var(--paper); border: 1px solid rgba(20,17,14,0.10);
  padding: 32px 26px; text-align: center; position: relative;
  transition: transform .18s, box-shadow .2s, border-color .2s;
}
.tier:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(20,17,14,0.12); border-color: var(--line); }
.tier--featured { border-color: var(--gold); border-width: 2px; }
.tier__badge {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  background: var(--gold); color: var(--ink); font-size: 0.66rem; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase; padding: 5px 14px; border-radius: 2px;
}
.tier__amount { font-family: var(--serif); font-size: 2.4rem; color: var(--gold); margin: 0 0 4px; }
.tier__name { font-family: var(--serif); font-size: 1.15rem; margin: 0 0 12px; }
.tier__impact { color: var(--muted); font-size: 0.96rem; margin: 0; }
@media (max-width: 860px) { .tiers { grid-template-columns: 1fr; } }

/* ---------- Event / matchup card ---------- */
.event-card {
  max-width: 560px; margin: 30px auto 0; text-align: center;
  background: linear-gradient(160deg, #221c17, #14100F);
  border: 1px solid var(--line); border-radius: 4px;
  padding: 34px 28px 32px;
}
.event-card__badge {
  display: inline-block; font-family: var(--serif);
  font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--gold-soft); border: 1px solid var(--line);
  padding: 5px 14px; border-radius: 999px; margin-bottom: 18px;
}
.event-card__matchup {
  font-family: var(--serif); font-size: 1.9rem; line-height: 1.1;
  color: #F6F1EE; margin: 0 0 12px;
}
.event-card__matchup span {
  font-size: 0.85rem; color: var(--gold-soft);
  text-transform: uppercase; letter-spacing: 0.12em; margin: 0 10px;
}
.event-card__date {
  font-family: var(--serif); font-size: 1.1rem; color: var(--gold-soft);
  letter-spacing: 0.05em; margin: 0 0 4px;
}
.event-card__meta { color: rgba(240,232,214,0.75); font-size: 0.95rem; margin: 0 0 16px; }
.event-card__note {
  color: rgba(240,232,214,0.6); font-size: 0.85rem;
  max-width: 420px; margin: 0 auto 22px; line-height: 1.5;
}

/* ---------- Forms ---------- */
.form { max-width: 620px; margin: 34px auto 0; text-align: left; }
.form__row { margin: 0 0 18px; }
.form__row--split { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form label {
  display: block; font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--muted); margin: 0 0 7px;
}
.section--dark .form label { color: var(--muted-dk); }
.form input, .form select, .form textarea {
  width: 100%; font-family: var(--sans); font-size: 1rem; color: var(--ink);
  background: var(--paper); border: 1px solid rgba(20,17,14,0.20);
  border-radius: 3px; padding: 12px 14px;
}
.form input:focus, .form select:focus, .form textarea:focus {
  outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(157,34,53,0.12);
}
.form textarea { resize: vertical; min-height: 96px; }
.form__submit { margin-top: 6px; }
@media (max-width: 560px) { .form__row--split { grid-template-columns: 1fr; } }

/* ---------- Spotlight list ---------- */
.spotlights { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 12px; }
.spotlight {
  background: var(--paper); border: 1px solid rgba(20,17,14,0.08);
  padding: 28px 26px; border-top: 3px solid var(--gold);
}
.spotlight h3 { margin: 0 0 4px; }
.spotlight__meta { font-size: 0.78rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gold); margin: 0 0 12px; }
.spotlight p { color: var(--muted); font-size: 0.96rem; margin: 0; }
@media (max-width: 860px) { .spotlights { grid-template-columns: 1fr; } }

/* ---------- Accessibility ---------- */
:focus-visible { outline: 2px solid var(--gold-soft); outline-offset: 3px; }
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}