:root {
  --bg: #FBFAF6;
  --bg-alt: #F1F3EC;
  --green: #17301F;
  --green-hover: #1F3D28;
  --text: #1C2620;
  --text-muted: #40493F;
  --text-muted-2: #6B7566;
  --text-muted-3: #8A9182;
  --border: #E4DFCF;
  --border-2: #D9D4C2;
  --border-3: #D6D2C0;
  --gold: #B08D3E;
  --gold-hover: #C6A559;
  --on-dark-1: #AFB8A2;
  --on-dark-2: #96A088;
  --on-dark-3: #C9D0BE;
  --on-dark-4: #728064;
  --cream: #F4EFE3;
  --nav-link: #D8DECB;
  --section-pad-y: 110px;
  --section-pad-x: 8vw;
  --max-wide: 1400px;
  --max-schedule: 900px;
  --max-faq: 800px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', sans-serif;
  overflow-x: hidden;
}

::selection { background: var(--gold); color: var(--bg); }

a { text-decoration: none; }

.eyebrow {
  color: var(--gold);
  font-size: 13px;
  letter-spacing: 3px;
  font-weight: 600;
  margin-bottom: 16px;
}

.heading {
  font-family: 'Playfair Display', serif;
  font-weight: 600;
  color: var(--green);
}

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--green);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 48px;
  box-shadow: 0 2px 20px rgba(0,0,0,0.15);
}

.nav__logo {
  font-family: 'Playfair Display', serif;
  color: var(--cream);
  font-size: 19px;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__link {
  color: var(--nav-link);
  font-size: 14px;
  letter-spacing: 0.3px;
  transition: color 0.15s ease;
}
.nav__link:hover { color: var(--gold); }

.nav__cta {
  background: var(--gold);
  color: var(--green);
  padding: 10px 22px;
  border-radius: 2px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.3px;
  transition: background 0.15s ease;
}
.nav__cta:hover { background: var(--gold-hover); }

.nav__toggle {
  display: none;
  background: none;
  border: none;
  color: var(--cream);
  font-size: 26px;
  cursor: pointer;
}

/* Hero */
.hero { width: 100%; background: var(--bg); }
.hero__img { width: 100%; display: block; }
.hero__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 26px var(--section-pad-x);
  background: var(--green);
  flex-wrap: wrap;
  gap: 20px;
}
.hero__meta {
  color: #E7E4D6;
  font-size: 15px;
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
}
.hero__meta .dot { color: var(--gold); }
.hero__actions { display: flex; gap: 16px; flex-wrap: wrap; }

.btn-gold {
  background: var(--gold);
  color: var(--green);
  padding: 13px 30px;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.3px;
  border: none;
  cursor: pointer;
  transition: background 0.15s ease;
}
.btn-gold:hover { background: var(--gold-hover); }

.btn-outline-cream {
  border: 1px solid var(--cream);
  color: var(--cream);
  padding: 13px 30px;
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.3px;
  background: transparent;
  transition: background 0.15s ease;
}
.btn-outline-cream:hover { background: rgba(244,239,227,0.1); }

/* About */
#about {
  padding: var(--section-pad-y) var(--section-pad-x);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 80px;
  align-items: start;
  max-width: var(--max-wide);
  margin: 0 auto;
}
#about p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-muted);
  margin-bottom: 20px;
}
#about p:last-child { margin-bottom: 0; }
#about h2 { font-size: 38px; margin: 0 0 28px; }

.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}
.stat-cell { background: var(--bg); padding: 40px 28px; }
.stat-cell__num {
  font-family: 'Playfair Display', serif;
  font-size: 40px;
  color: var(--green);
  font-weight: 700;
}
.stat-cell__num--sm { font-size: 30px; }
.stat-cell__label {
  font-size: 13px;
  color: var(--text-muted-2);
  letter-spacing: 0.5px;
  margin-top: 6px;
}

/* Cause */
#cause {
  background: var(--green);
  padding: var(--section-pad-y) var(--section-pad-x);
  color: var(--cream);
}
#cause .inner { max-width: var(--max-wide); margin: 0 auto; }
#cause .intro { text-align: center; max-width: 720px; margin: 0 auto 60px; }
#cause h2 { font-size: 38px; margin: 0 0 24px; color: var(--cream); }
#cause .intro p { font-size: 16px; line-height: 1.8; color: var(--on-dark-3); }

.card-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(244,239,227,0.15);
  margin-bottom: 50px;
}
.card-grid-4--light { background: var(--border); border: 1px solid var(--border); margin-bottom: 70px; }

.cause-card { background: var(--green); padding: 40px 30px; }
.benefit-card { background: var(--bg); padding: 40px 28px; }

.num-badge {
  width: 52px; height: 52px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Playfair Display', serif;
  color: var(--gold);
  font-size: 16px;
  margin-bottom: 22px;
}
.cause-card__title { font-family: 'Playfair Display', serif; font-size: 19px; margin-bottom: 12px; color: var(--cream); }
.cause-card__desc { font-size: 14px; line-height: 1.7; color: var(--on-dark-1); }
.benefit-card__title { font-family: 'Playfair Display', serif; font-size: 19px; margin-bottom: 12px; color: var(--green); }
.benefit-card__desc { font-size: 14px; line-height: 1.7; color: var(--text-muted-2); }

.cause-disclaimer {
  border-top: 1px solid rgba(244,239,227,0.15);
  padding-top: 30px;
  text-align: center;
}
.cause-disclaimer p {
  font-size: 14px; color: var(--on-dark-1); line-height: 1.7;
  max-width: 780px; margin: 0 auto;
}

/* Schedule */
#schedule {
  padding: var(--section-pad-y) var(--section-pad-x);
  max-width: var(--max-schedule);
  margin: 0 auto;
}
.section-head { text-align: center; margin-bottom: 60px; }
.section-head h2 { font-size: 38px; margin: 0; }

.sched-row {
  display: grid;
  grid-template-columns: 140px 1px 1fr;
  gap: 28px;
  padding: 26px 0;
  border-bottom: 1px solid var(--border);
}
.sched-row--highlight {
  padding: 26px 22px;
  margin-top: 14px;
  background: var(--bg-alt);
  border-left: 3px solid var(--gold);
  border-bottom: none;
}
.sched-row__time { font-family: 'Playfair Display', serif; font-size: 17px; color: var(--green); font-weight: 600; }
.sched-row__rule { background: var(--gold); width: 1px; }
.sched-row__segment { font-size: 16px; font-weight: 600; color: var(--green); margin-bottom: 6px; }
.sched-row__detail { font-size: 14px; color: var(--text-muted-2); line-height: 1.6; }

/* Register */
#register { background: var(--bg-alt); padding: var(--section-pad-y) var(--section-pad-x); }
#register .inner { max-width: var(--max-wide); margin: 0 auto; }

.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}
.cat-card {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 40px 32px;
  cursor: pointer;
  text-align: left;
  font-family: inherit;
  transition: background 0.15s ease;
}
.cat-card__id { font-family: 'Playfair Display', serif; font-size: 34px; font-weight: 700; color: var(--green); margin-bottom: 6px; }
.cat-card__name { font-size: 15px; font-weight: 600; color: var(--green); margin-bottom: 14px; }
.cat-card__desc { font-size: 14px; color: var(--text-muted-2); line-height: 1.6; margin-bottom: 22px; min-height: 42px; }
.cat-card__fee { font-family: 'Playfair Display', serif; font-size: 24px; color: var(--green); font-weight: 600; }
.cat-card__fee-label { font-size: 12px; color: var(--text-muted-2); letter-spacing: 0.5px; margin-top: 4px; }
.cat-card__badge {
  margin-top: 18px; display: inline-block;
  background: var(--gold); color: var(--green);
  font-size: 12px; letter-spacing: 0.5px; font-weight: 600;
  padding: 6px 14px;
}

.cat-card.selected {
  background: var(--green);
}
.cat-card.selected .cat-card__id,
.cat-card.selected .cat-card__name,
.cat-card.selected .cat-card__fee { color: var(--cream); }
.cat-card.selected .cat-card__desc,
.cat-card.selected .cat-card__fee-label { color: var(--on-dark-1); }

.form-panel, .confirm-panel {
  background: var(--bg);
  border: 1px solid var(--border);
  max-width: 640px;
  margin: 0 auto;
  padding: 50px;
}
.confirm-panel { max-width: 560px; padding: 60px; text-align: center; }

.form-panel__title {
  font-family: 'Playfair Display', serif;
  font-size: 22px; color: var(--green);
  margin-bottom: 30px; font-weight: 600;
}
.form-stack { display: flex; flex-direction: column; gap: 20px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field label {
  display: block; font-size: 13px; color: var(--text-muted-2);
  margin-bottom: 8px; letter-spacing: 0.3px;
}
.field input, .field select {
  width: 100%; box-sizing: border-box;
  padding: 13px 16px; border: 1px solid var(--border-3);
  background: var(--bg); font-size: 15px;
  font-family: 'Inter', sans-serif; color: var(--green);
}
.field input:focus, .field select:focus { outline: 2px solid var(--gold); outline-offset: -1px; }

.checkbox-row {
  display: flex; align-items: flex-start; gap: 12px;
  font-size: 14px; color: var(--text-muted); line-height: 1.6; cursor: pointer;
}
.checkbox-row input { margin-top: 3px; }

.submit-btn {
  margin-top: 10px; background: var(--green); color: var(--cream);
  border: none; padding: 17px; font-size: 15px; font-weight: 600;
  letter-spacing: 0.3px; cursor: pointer; transition: background 0.15s ease;
}
.submit-btn:hover { background: var(--green-hover); }
.submit-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.form-note { font-size: 12px; color: var(--text-muted-3); text-align: center; }
.form-error {
  font-size: 13px; color: #9C3B2E; background: #FBEAE6;
  border: 1px solid #E7C4BB; padding: 12px 14px;
}

.confirm-check {
  width: 60px; height: 60px; border-radius: 50%;
  border: 1px solid var(--gold);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 26px;
  font-family: 'Playfair Display', serif; color: var(--gold); font-size: 26px;
}
.confirm-panel__title { font-family: 'Playfair Display', serif; font-size: 24px; color: var(--green); margin-bottom: 14px; font-weight: 600; }
.confirm-panel__body { font-size: 15px; color: var(--text-muted-2); line-height: 1.7; margin-bottom: 30px; }
.btn-outline-green {
  background: none; border: 1px solid var(--green); color: var(--green);
  padding: 13px 28px; font-size: 14px; font-weight: 600; cursor: pointer;
}

.certificate-link { display: inline-block; margin-bottom: 14px; }
.certificate-note { margin-bottom: 24px; }

/* Sponsors */
#sponsors { padding: var(--section-pad-y) var(--section-pad-x); max-width: var(--max-wide); margin: 0 auto; }
#sponsors .intro { text-align: center; max-width: 760px; margin: 0 auto 60px; }
#sponsors h2 { font-size: 38px; margin: 0 0 24px; }
#sponsors .intro p { font-size: 16px; line-height: 1.8; color: var(--text-muted); }

.partners-label { text-align: center; margin-bottom: 30px; font-size: 13px; letter-spacing: 2px; color: var(--text-muted-3); }
.logo-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.logo-slot {
  width: 100%; height: 90px;
  border: 1px dashed var(--border-2);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted-3); font-size: 12px; text-align: center;
  background: var(--bg-alt);
}

/* FAQ */
#faq { background: var(--bg-alt); padding: var(--section-pad-y) var(--section-pad-x); }
#faq .inner { max-width: var(--max-faq); margin: 0 auto; }
#faq h2 { font-size: 38px; margin: 0; }

.faq-item { border-bottom: 1px solid var(--border-2); }
.faq-item__q {
  display: flex; justify-content: space-between; align-items: center;
  padding: 24px 4px; cursor: pointer; background: none; border: none;
  width: 100%; text-align: left; font-family: inherit;
}
.faq-item__q-text { font-size: 16px; font-weight: 600; color: var(--green); }
.faq-item__marker { font-family: 'Playfair Display', serif; font-size: 20px; color: var(--gold); }
.faq-item__a { padding: 0 4px 26px; font-size: 15px; color: #5B6B5E; line-height: 1.7; }

/* Footer */
.footer { background: var(--green); color: var(--on-dark-3); padding: 80px 8vw 40px; }
.footer .inner {
  max-width: var(--max-wide); margin: 0 auto 60px;
  display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 60px;
}
.footer__brand { font-family: 'Playfair Display', serif; color: var(--cream); font-size: 22px; margin-bottom: 16px; }
.footer__tagline { font-size: 14px; line-height: 1.7; color: var(--on-dark-2); }
.footer__col-label { font-size: 13px; letter-spacing: 1.5px; color: var(--gold); margin-bottom: 18px; }
.footer__col-body { font-size: 14px; line-height: 1.8; color: var(--on-dark-2); }
.footer__bottom {
  border-top: 1px solid rgba(244,239,227,0.12); padding-top: 28px;
  font-size: 13px; color: var(--on-dark-4); text-align: center;
}

/* Responsive */
@media (max-width: 980px) {
  #about { grid-template-columns: 1fr; gap: 48px; }
  .card-grid-4, .card-grid-4--light { grid-template-columns: repeat(2, 1fr); }
  .cat-grid { grid-template-columns: 1fr; }
  .logo-grid { grid-template-columns: repeat(3, 1fr); }
  .footer .inner { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 760px) {
  .nav { padding: 14px 20px; }
  .nav__links {
    position: fixed; top: 60px; left: 0; right: 0;
    background: var(--green); flex-direction: column; align-items: flex-start;
    padding: 20px 24px; gap: 20px;
    transform: translateY(-140%); transition: transform 0.2s ease;
  }
  .nav__links.open { transform: translateY(0); }
  .nav__toggle { display: block; }
  #about, #cause, #schedule, #register, #sponsors, #faq {
    padding-left: 6vw; padding-right: 6vw;
  }
  :root { --section-pad-y: 70px; }
  .heading, #about h2, #cause h2, .section-head h2, #register h2, #sponsors h2, #faq h2 { font-size: 28px !important; }
  .stat-grid, .card-grid-4, .card-grid-4--light { grid-template-columns: 1fr; }
  .form-row-2 { grid-template-columns: 1fr; }
  .sched-row, .sched-row--highlight { grid-template-columns: 90px 1px 1fr; gap: 16px; }
  .footer .inner { grid-template-columns: 1fr; }
  .logo-grid { grid-template-columns: repeat(2, 1fr); }
  .form-panel, .confirm-panel { padding: 32px 22px; }
}