:root {
  --color-primary: #f8e27f;
  --color-dark: #2c1500;
  --color-bg: radial-gradient(circle at top left, #1a0d00 0%, #3b1e00 50%, #a67c52 100%);
  --font-main: "Poppins", sans-serif;
  --transition-fast: all 0.3s ease;
  --transition-medium: all 0.5s ease;
  --shadow-glow: 0 0 16px rgba(248, 226, 127, 0.5);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: var(--font-main);
}

html { scroll-behavior: smooth; }

body {
  background: var(--color-bg);
  color: #fff;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  user-select: none;
}

#main-nav {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 40px;
  background: rgba(12, 12, 12, 0.75);
  backdrop-filter: blur(10px);
  transition: background 0.4s ease, transform 0.4s ease, padding 0.3s ease;
  border-bottom: 1px solid rgba(248, 226, 127, 0.2);
}
#main-nav.hide { transform: translateY(-100%); }

#main-nav .logo {
  display: flex; align-items: center; gap: 12px;
  color: var(--color-primary);
  font-weight: 700; text-transform: uppercase;
  font-size: 1.2rem;
  text-decoration: none;
}
#main-nav .logo img {
  width: 52px; height: 52px;
  border-radius: 50%;
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-glow);
  transition: transform 0.4s ease;
}
#main-nav .logo:hover img { transform: rotate(10deg) scale(1.05); }

#main-nav .navbar-nav {
  display: flex; list-style: none; align-items: center;
  gap: 24px; transition: var(--transition-medium);
}
.nav-button {
  font-size: 16px; padding: 8px 22px;
  color: var(--color-primary);
  border: 1.5px solid transparent;
  border-radius: 8px; text-decoration: none;
  transition: var(--transition-fast);
  font-weight: 500;
}
.nav-button:hover {
  background: rgba(248, 226, 127, 0.1);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}
.special-button {
  background: linear-gradient(90deg, #fff8b0, #f8e27f, #fff3a1);
  color: var(--color-dark);
  font-weight: 800;
  font-size: 1rem;
  padding: 10px 28px;
  border-radius: 10px;
  border: none;
  box-shadow: 0 0 20px rgba(248, 226, 127, 0.7);
  animation: pulse-zoom 2.5s infinite ease-in-out;
  text-transform: uppercase;
  text-decoration: none;
  transition: var(--transition-fast);
}
.special-button:hover {
  transform: scale(1.05);
  box-shadow: 0 0 35px rgba(255, 245, 160, 1);
}
@keyframes pulse-zoom {
  0%, 100% { box-shadow: 0 0 16px rgba(248, 226, 127, 0.6); }
  50% { box-shadow: 0 0 30px rgba(248, 226, 127, 0.9); }
}

#menu-toggle {
  display: none; flex-direction: column; justify-content: space-between;
  width: 28px; height: 21px; cursor: pointer;
  background: transparent; border: none; z-index: 10000;
}
#menu-toggle span {
  height: 3px; width: 100%; background: var(--color-primary);
  border-radius: 3px; transition: var(--transition-medium);
  transform-origin: center;
}
#menu-toggle.open span:nth-child(1) { transform: rotate(45deg) translate(6px, 6px); }
#menu-toggle.open span:nth-child(2) { opacity: 0; transform: translateX(-20px); }
#menu-toggle.open span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

.carousel-section {
  width: 100%;
  height: 100vh;
  max-height: 800px;
  position: relative;
}
.carousel-container {
  position: relative; overflow: hidden;
  width: 100%; height: 100%;
}
.carousel-slide {
  display: flex; width: 100%; height: 100%;
  background-color: #000;
}
.carousel-slide img {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
}
.carousel-slide img.active { opacity: 1; z-index: 1; }
.carousel-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.5); color: var(--color-primary);
  border: none; font-size: 1.8rem; cursor: pointer;
  padding: 12px 18px; border-radius: 50%; z-index: 10;
  transition: var(--transition-fast); line-height: 1;
}
.carousel-btn:hover {
  background: var(--color-primary); color: var(--color-dark);
  transform: translateY(-50%) scale(1.1);
}
.carousel-btn.prev { left: 20px; }
.carousel-btn.next { right: 20px; }

.main-content {
  padding: 40px 20px;
  width: 100%;
  flex-grow: 1;
  background: var(--color-bg);
  position: relative;
  z-index: 5;
}

.cards-section {
  display: flex; flex-direction: column; gap: 80px;
  width: 100%; max-width: 1100px; margin: 40px auto;
}
.large-card {
  display: flex; border-radius: 22px; overflow: hidden;
  background: rgba(255, 255, 255, 0.05);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.45);
  opacity: 0; transform: translateY(40px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.large-card.reverse { flex-direction: row-reverse; }
.large-card.visible { opacity: 1; transform: translateY(0); }
.card-image { flex: 1 1 50%; min-height: 400px; }
.card-image img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s ease, filter 0.6s ease;
}
.large-card:hover .card-image img { transform: scale(1.05); filter: brightness(1.1); }
.card-content {
  flex: 1 1 50%; padding: 50px;
  background: rgba(43, 21, 0, 0.7); backdrop-filter: blur(8px);
  display: flex; flex-direction: column; justify-content: center;
}
.card-title {
  font-size: 2.2rem; font-weight: 700; color: var(--color-primary);
  margin-bottom: 16px; position: relative;
}
.card-title::after {
  content: ""; position: absolute; left: 0; bottom: -8px;
  width: 60px; height: 4px; background: var(--color-primary);
  border-radius: 2px;
}
.card-text { font-size: 1.05rem; line-height: 1.7; color: #fceec9; margin: 20px 0; }
.card-button {
  align-self: flex-start; padding: 14px 38px;
  background: var(--color-primary); color: var(--color-dark);
  border-radius: 10px; font-weight: 700; font-size: 1rem;
  text-decoration: none; box-shadow: var(--shadow-glow);
  transition: var(--transition-fast);
}
.card-button:hover {
  background: #fff8c5; transform: translateY(-3px) scale(1.05);
  box-shadow: 0 0 35px rgba(248, 226, 127, 0.8);
}

#particles { position: fixed; inset: 0; z-index: -1; overflow: hidden; }
.particle {
  position: absolute; background: var(--color-primary);
  border-radius: 50%; animation: float 25s ease-in-out infinite; opacity: 0;
}
@keyframes float {
  0% { transform: translate(0, 0) scale(0.5); opacity: 0; }
  50% { opacity: 0.7; }
  100% { transform: translate(var(--x, 50) * 1px, var(--y, 50) * 1px) scale(1.2); opacity: 0; }
}

footer {
  background: #1a0d00;
  padding: 50px 20px 30px;
  text-align: center;
  border-top: 2px solid var(--color-primary);
  margin-top: auto;
  width: 100%;
  position: relative;
  z-index: 5;
}
.footer-cards {
  display: flex; justify-content: center;
  flex-wrap: wrap; gap: 30px; margin-bottom: 30px;
}
.social-card {
  width: 150px; height: 150px; border-radius: 16px;
  display: flex; flex-direction: column; justify-content: center;
  align-items: center; color: #fff; font-weight: 600;
  text-decoration: none; transition: var(--transition-fast);
}
.social-card i { font-size: 3rem; margin-bottom: 10px; }
.social-card.facebook { background: #1877f2; }
.social-card.instagram { background: radial-gradient(circle at 30% 107%, #fdf497 0%, #fd5949 45%, #d6249f 60%, #285aeb 90%); }
.social-card.campus { background: var(--color-primary); color: var(--color-dark); }
.social-card:hover {
  transform: translateY(-8px) scale(1.03);
  filter: brightness(1.15);
  box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}
.copyright { font-size: 0.95rem; color: #f8e27f; }


@media (max-width: 991px) {
  #main-nav { padding: 12px 20px; }
  #menu-toggle { display: flex; }
  .navbar-nav {
    position: fixed; top: 0; right: -100%;
    width: 100vw; height: 100vh;
    flex-direction: column; background: rgba(15, 7, 0, 0.98);
    backdrop-filter: blur(10px); justify-content: center;
    align-items: center; gap: 30px;
    transition: right 0.5s cubic-bezier(0.77, 0, 0.175, 1);
  }
  .navbar-nav.active { right: 0; }
  body.no-scroll { overflow: hidden; }
  .nav-button, .special-button {
    width: 100%; max-width: 300px; text-align: center;
    font-size: 1.3rem; padding: 18px 20px;
  }
  .large-card, .large-card.reverse { flex-direction: column; }
  .carousel-section { height: 80vh; }
}

@media (max-width: 600px) {
  .card-content { padding: 30px 25px; }
  .card-title { font-size: 1.8rem; }
  .card-button { align-self: stretch; text-align: center; }
  .carousel-section { height: 70vh; }
  .carousel-btn { padding: 8px 14px; font-size: 1.4rem; }
  .carousel-btn.prev { left: 10px; }
  .carousel-btn.next { right: 10px; }
  .footer-cards { gap: 15px; }
}