/* =========================================
   1. Root Variables - Color Scheme 
   (TIDAK DIUBAH SAMA SEKALI)
========================================= */
:root {
  /* Primary colors */
  --bg-color: #ffd6c3;
  --container-bg-color: #ffae8b;
  --container-bg-color-dark: #ff9b70;
  --primary: #ca5342;
  --primary-dark: #a93320;
  --text-color-glow: #fef2f2;
  /* UI colors */
  --nav-headings: white;
  /* Navbar footer */
  --navbar-hover: #fff9f6;
}

/* =========================================
   2. Reset and Base Styles
========================================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  background-color: var(--bg-color);
  color: white;
  width: 100%; /* PENTING: 100% mencegah horizontal scroll, jangan pakai 100vw */
  min-height: 100vh;
  overflow-x: hidden;
  font-family: sans-serif; /* Opsional: Sesuaikan dengan font project kamu */
}

p, li {
  font-size: 110%;
}

/* =========================================
   3. Utility Classes & Layouts
========================================= */
.kewa {
  display: flex;
  flex-direction: row;
  width: 100%;
}

.kepan {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.hidden {
  transform: translateY(100%);
  filter: blur(10px);
  opacity: 0;
  transition: all 0.7s ease-in-out;
}

.show {
  transform: translateY(0);
  filter: blur(0);
  opacity: 1;
}

/* =========================================
   4. Banner Section
========================================= */
section.banner {
  --size: 100vw;
  position: relative;
  width: var(--size);
  height: calc(var(--size) / 1.6);
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  margin-top: 0;
  background-color: var(--bg-color);
}

section.banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

section.banner .gradient-banner {
  position: absolute;
  z-index: 10;
  left: 0;
  bottom: 0;
  height: 10rem;
  width: 100%;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0), var(--bg-color));
}

/* =========================================
   5. Main Sections (About & Content)
========================================= */
section.about, section.content {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 90%; /* Menggunakan % agar aman dari scrollbar */
  max-width: 1200px;
  margin: 2rem auto 4rem auto;
  background: linear-gradient(to bottom, var(--container-bg-color), var(--container-bg-color-dark));
  box-shadow: 0px 10px 30px rgba(0, 0, 0, 0.2);
  border-radius: 20px;
  text-align: center;
  padding: 3rem 2rem;
}

section.content h1, section.about h1 {
  font-weight: 700;
  color: white;
  margin: 0;
}

section.content h2 {
  font-weight: 700;
  color: white;
}

/* =========================================
   6. About Components
========================================= */
.about-title {
  margin-bottom: 1.5rem;
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: 2px;
}

.about-desc {
  font-size: 1.15rem;
  color: #fff;
  max-width: 900px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.22);
  padding: 20px 30px;
  border-radius: 18px;
  backdrop-filter: blur(6px);
  line-height: 1.5;
  margin-bottom: 2.5rem;
}

.about-panitia-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  width: 100%;
  max-width: 1000px;
}

.about-panitia-item {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.22);
  padding: 20px;
  border-radius: 18px;
  backdrop-filter: blur(6px);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.about-panitia-role {
  color: #fff;
  font-size: 1.1rem;
  font-weight: bold;
  letter-spacing: 0.5px;
}

.about-panitia-name {
  font-size: 1.1rem;
  font-weight: 400;
  margin-top: 8px;
}

/* =========================================
   7. Deadline Badge
========================================= */
.deadline-container {
  width: 100%;
  margin: 2rem 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

.deadline-badge {
  display: inline-block;
  background: var(--container-bg-color);
  color: #fff;
  padding: 12px 30px;
  border-radius: 999px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.deadline-badge h2 { font-size: 1.2rem; margin-bottom: 4px; }
.deadline-badge p { margin: 0; font-size: 1rem; opacity: 0.9; }

/* =========================================
   8. Posters & Cards Grid
========================================= */
section.content .header {
  text-align: center;
  padding: 15px 40px;
  background: #ffba9d;
  border-radius: 40px;
  max-width: 600px;
  margin: 0 auto 20px auto;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.posters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 25px;
  width: 100%;
  max-width: 1200px;
  margin-top: 20px;
}

.poster-card {
  background: rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  cursor: pointer;
}

.poster-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  border-color: rgba(255, 255, 255, 0.3);
}

.poster-link {
  display: block;
  text-decoration: none;
  color: inherit;
  width: 100%;
  height: 100%;
}

.poster-image-wrapper {
  position: relative;
  width: 100%;
  padding-top: 140%; /* Aspect ratio poster */
  overflow: hidden;
  background: rgba(0, 0, 0, 0.2);
}

.poster-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.poster-card:hover .poster-image {
  transform: scale(1.05);
}

.poster-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.8) 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
  display: flex;
  align-items: flex-end;
  padding: 20px;
}

.poster-card:hover .poster-overlay {
  opacity: 1;
}

.poster-info { width: 100%; }

.poster-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 5px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
  line-height: 1.3;
}

.poster-click {
  font-size: 0.9rem;
  color: #e1dec2;
  font-weight: 500;
  display: inline-block;
  transition: transform 0.2s ease;
}

.poster-card:hover .poster-click {
  transform: translateX(5px);
}

/* =========================================
   9. Footer & Navigation
========================================= */
.footer {
  margin-top: 0;
  background: linear-gradient(to bottom, var(--container-bg-color), var(--container-bg-color-dark));
  width: 100%;
  margin-bottom: 0;
}

.footer .column2 a h1, .footer .column3 a h2, .footer .copyright {
  color: var(--bg-color);
}

.footer .footer-content a:hover {
  color: var(--nav-headings);
  animation: nav-hover-a 0.2s linear;
}

.navbar {
  background-color: var(--primary);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 5000;
}

.navbar a:hover {
  animation: glowUp 0.3s forwards;
}

.navbar a:not(:hover) {
  animation: glowDown 0.3s forwards;
}

/* =========================================
   10. Animations
========================================= */
@keyframes glowUp {
  from { text-shadow: none; }
  to { text-shadow: 0 0 5px var(--navbar-hover), 0 0 2px white; }
}

@keyframes glowDown {
  from { text-shadow: 0 0 5px var(--navbar-hover), 0 0 2px white; }
  to { text-shadow: none; }
}

/* =========================================
   11. MEDIA QUERIES (Sangat Bersih & Responsif)
========================================= */

/* ===== 1024px - Tablet Landscape ===== */
@media screen and (max-width: 1024px) {
  section.about, section.content {
    width: 95%;
    padding: 2rem 1.5rem;
  }
  
  .posters-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
  }
  
  .about-panitia-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ===== 768px - Tablet Portrait ===== */
@media screen and (max-width: 768px) {
  .about-title { font-size: 2rem; }
  .about-desc { font-size: 1rem; padding: 15px 20px; }
  
  .posters-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 15px;
  }
  
  section.banner .gradient-banner { height: 6rem; }
}

/* ===== 480px - All Mobile Phones (Fluid) ===== */
@media screen and (max-width: 480px) {
  section.about, section.content {
    margin: 1rem auto;
    padding: 1.5rem 1rem;
    border-radius: 15px;
  }

  .about-title { font-size: 1.6rem; margin-bottom: 1rem; }
  .about-desc { font-size: 0.95rem; padding: 12px; margin-bottom: 1.5rem; }

  /* Panitia jadi 1 kolom di HP */
  .about-panitia-row {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  
  .about-panitia-item { padding: 12px; }

  /* Poster jadi 2 kolom sejajar di HP */
  .posters-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .poster-overlay { padding: 10px; }
  .poster-name { font-size: 0.9rem; margin-bottom: 2px; }
  .poster-click { font-size: 0.75rem; }
  
  section.content .header {
    padding: 10px 20px;
    width: 90%;
  }
  
  section.content .header h1 { font-size: 1.1rem; }
  section.banner .gradient-banner { height: 4rem; }
  .deadline-badge { width: 90%; padding: 8px 15px; }
  .deadline-badge h2 { font-size: 1rem; }
  .deadline-badge p { font-size: 0.85rem; }
  p, li { font-size: 90%; }
}

/* =========================================
   12. FIX UNTUK LAYAR SENTUH (HP/TABLET)
========================================= */
@media (hover: none) {
  /* Di perangkat tanpa mouse (layar sentuh), overlay text selalu dimunculkan agar bisa dibaca tanpa harus di-tap dulu */
  .poster-overlay {
    opacity: 1; 
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0) 40%, rgba(0, 0, 0, 0.85) 100%);
  }
  .poster-click {
    transform: translateX(5px);
  }
}