/* ===== Variables ===== */
:root {
  --color-bg: #f4f1eb;
  --color-bg-alt: #ebe5db;
  --color-surface: #ffffff;
  --color-primary: #1a3c34;
  --color-primary-light: #2a5a4e;
  --color-accent: #c4a574;
  --color-accent-soft: #e8d9c0;
  --color-text: #1c1c1c;
  --color-text-muted: #5a5a5a;
  --color-border: #ddd4c6;
  --font-sans: "Nunito", system-ui, -apple-system, sans-serif;
  --radius: 14px;
  --radius-lg: 18px;
  --shadow: 0 4px 18px rgba(26, 60, 52, 0.09);
  --shadow-md: 0 8px 28px rgba(26, 60, 52, 0.12);
  --shadow-lg: 0 14px 40px rgba(26, 60, 52, 0.14);
  --shadow-gallery: 0 6px 20px rgba(26, 60, 52, 0.14);
  --shadow-gallery-hover: 0 12px 32px rgba(26, 60, 52, 0.2);
  --transition: 0.25s ease;
  --header-h: 72px;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body {
  font-family: var(--font-sans);
  font-weight: 500;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }

.container {
  width: min(1120px, 92%);
  margin-inline: auto;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(244, 241, 235, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.header.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: 0 2px 16px rgba(0,0,0,0.05);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.logo {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}
.nav {
  display: flex;
  gap: 1.75rem;
}
.nav__link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-muted);
  transition: color var(--transition);
  position: relative;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition);
}
.nav__link:hover {
  color: var(--color-primary);
}
.nav__link:hover::after { width: 100%; }

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
}
.burger span {
  display: block;
  height: 2.5px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 82vh;
  display: flex;
  align-items: center;
  background:
    linear-gradient(155deg, #16352e 0%, #1f4a40 40%, #2d5f52 100%);
  color: #fff;
  overflow: hidden;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 15% 85%, rgba(196, 165, 116, 0.18) 0%, transparent 55%),
    radial-gradient(ellipse at 85% 15%, rgba(255,255,255,0.07) 0%, transparent 45%);
  pointer-events: none;
}
/* soft organic dots pattern */
.hero__overlay::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.07;
  background-image: radial-gradient(circle at 1px 1px, #fff 1px, transparent 0);
  background-size: 28px 28px;
}
.hero__content {
  position: relative;
  z-index: 1;
  padding: 7.5rem 0 4.5rem;
  max-width: 640px;
}
.hero__eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(196, 165, 116, 0.15);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  margin-bottom: 1.15rem;
}
.hero__title {
  font-size: clamp(2.35rem, 5.5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.18;
  margin-bottom: 1.15rem;
  letter-spacing: -0.02em;
}
.hero__text {
  font-size: 1.1rem;
  font-weight: 500;
  opacity: 0.92;
  margin-bottom: 2rem;
  max-width: 500px;
  line-height: 1.7;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.9rem;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: 999px;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.btn--primary {
  background: var(--color-accent);
  color: var(--color-primary);
  box-shadow: 0 6px 20px rgba(196, 165, 116, 0.35);
}
.btn--primary:hover {
  background: #d4b584;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(196, 165, 116, 0.45);
}

/* ===== Sections ===== */
.section {
  padding: 5rem 0;
  position: relative;
}
.section--upcoming { background: var(--color-bg); }
.section--past {
  background: var(--color-bg-alt);
  /* subtle top divider */
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.5);
}
.section--partners { background: var(--color-bg); }
.section--contact { background: var(--color-bg-alt); }

.section__header {
  text-align: center;
  margin-bottom: 3rem;
}
.section__eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.55rem;
}
.section__title {
  font-size: clamp(1.75rem, 3.8vw, 2.35rem);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}
.section__desc {
  margin-top: 0.65rem;
  color: var(--color-text-muted);
  font-size: 1.05rem;
  font-weight: 500;
  max-width: 480px;
  margin-inline: auto;
}

/* ===== Upcoming card ===== */
.upcoming-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2.25rem;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  max-width: 760px;
  margin-inline: auto;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.upcoming-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
}
.upcoming-card__badge {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.4rem 0.95rem;
  border-radius: 999px;
  margin-bottom: 1.15rem;
}
.upcoming-card__title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 0.9rem;
  line-height: 1.35;
}
.upcoming-card__text {
  color: var(--color-text-muted);
  max-width: 500px;
  margin: 0 auto 1.75rem;
  font-size: 1.02rem;
  font-weight: 500;
}
.upcoming-card__meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding: 1.35rem 0.5rem;
  background: var(--color-bg);
  border-radius: var(--radius);
}
.meta-item__label {
  display: block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
}
.meta-item__value {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 0.98rem;
}
.upcoming-card__note {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ===== Past events ===== */
.event {
  margin-bottom: 4.25rem;
  background: transparent;
  padding: 0;
  border: none;
  box-shadow: none;
}
.event:last-child { margin-bottom: 0; }
.event__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.4rem;
  gap: 1rem;
  padding: 1.15rem 1.35rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.event__title {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--color-primary);
}
.event__subtitle {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  margin-top: 0.15rem;
}
.event__date-badge {
  background: var(--color-primary);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  letter-spacing: 0.03em;
  flex-shrink: 0;
}

/* ===== Gallery ===== */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}
.gallery__item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  cursor: pointer;
  background: var(--color-border);
  box-shadow: var(--shadow-gallery);
  transition: transform var(--transition), box-shadow var(--transition);
}
.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.gallery__overlay {
  position: absolute;
  inset: 0;
  background: rgba(22, 53, 46, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition);
}
.gallery__overlay span {
  color: #fff;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  padding: 0.5rem 1.1rem;
  border: 1.5px solid rgba(255,255,255,0.7);
  border-radius: 999px;
  background: rgba(0,0,0,0.15);
}
.gallery__item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-gallery-hover);
}
.gallery__item:hover img { transform: scale(1.05); }
.gallery__item:hover .gallery__overlay { opacity: 1; }

/* ===== Partners ===== */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.15rem;
}
.partner-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  aspect-ratio: 3 / 2;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.4rem;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
}
.partner-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent-soft);
  transform: translateY(-3px);
}
.partner-card__placeholder {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  font-weight: 600;
  text-align: center;
  opacity: 0.65;
  line-height: 1.35;
}
.partner-card--invite {
  border-style: dashed;
  background: transparent;
  box-shadow: none;
}
.partner-card--invite:hover {
  border-color: var(--color-primary);
  background: var(--color-surface);
  box-shadow: var(--shadow);
}
.partner-card img {
  max-height: 70px;
  max-width: 100%;
  object-fit: contain;
  filter: none;
  opacity: 1;
  transition: transform var(--transition);
}
.partner-card:hover img {
  transform: scale(1.03);
}
a.partner-card {
  text-decoration: none;
  color: inherit;
}

/* ===== Contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.35rem;
  max-width: 700px;
  margin-inline: auto;
}
.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.1rem 1.6rem;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), box-shadow var(--transition);
}
.contact-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.contact-card__icon {
  width: 54px;
  height: 54px;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  border-radius: 50%;
  color: var(--color-primary);
  box-shadow: inset 0 0 0 1px var(--color-border);
}
.contact-card h3 {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.45rem;
}
.contact-card a {
  font-size: 1.12rem;
  font-weight: 700;
  color: var(--color-primary);
  transition: color var(--transition);
}
.contact-card a:hover { color: var(--color-primary-light); }

/* ===== Footer ===== */
.footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.88);
  padding: 2.4rem 0;
}
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.logo--footer { color: #fff; font-weight: 800; }
.footer__brand p {
  font-size: 0.88rem;
  opacity: 0.7;
  margin-top: 0.2rem;
  font-weight: 500;
}
.footer__copy {
  font-size: 0.9rem;
  opacity: 0.7;
  font-weight: 500;
}

/* ===== Lightbox ===== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(12, 28, 24, 0.93);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
.lightbox[hidden] { display: none; }
.lightbox__img {
  max-width: min(90vw, 1100px);
  max-height: 85vh;
  object-fit: contain;
  border-radius: 10px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.45);
}
.lightbox__close,
.lightbox__prev,
.lightbox__next {
  position: absolute;
  color: #fff;
  font-size: 2.5rem;
  line-height: 1;
  opacity: 0.85;
  transition: opacity var(--transition);
  z-index: 2;
  font-weight: 300;
}
.lightbox__close:hover,
.lightbox__prev:hover,
.lightbox__next:hover { opacity: 1; }
.lightbox__close {
  top: 1.25rem;
  right: 1.5rem;
  font-size: 2.8rem;
}
.lightbox__prev { left: 1.25rem; }
.lightbox__next { right: 1.25rem; }

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
  .upcoming-card__meta { grid-template-columns: 1fr; gap: 0.85rem; text-align: center; }
}

@media (max-width: 720px) {
  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: 1.5rem 1.5rem 2rem;
    gap: 1.15rem;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
    box-shadow: var(--shadow);
  }
  .nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .burger { display: flex; }
  .burger.active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
  .burger.active span:nth-child(2) { opacity: 0; }
  .burger.active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

  .hero { min-height: 74vh; }
  .hero__content { padding: 6.5rem 0 3.5rem; }
  .section { padding: 3.75rem 0; }
  .upcoming-card { padding: 1.85rem 1.35rem; }
  .contact-grid { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr 1fr; gap: 0.85rem; }
  .event__header { flex-direction: column; align-items: flex-start; }
  .footer__inner { flex-direction: column; text-align: center; }
  .lightbox__prev, .lightbox__next { font-size: 2rem; }
  .lightbox__prev { left: 0.5rem; }
  .lightbox__next { right: 0.5rem; }
}

@media (max-width: 420px) {
  .gallery { grid-template-columns: 1fr; }
  .partners-grid { grid-template-columns: 1fr; }
}