/* ---
File: style.css (REVISI 71 - Center Tombol Lihat Semua)
Deskripsi: Meng-center tombol "Lihat Semua"
   --- */

/* --- 1. Global Setup & Font --- */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700;800&display=swap');

:root {
  --warna-putih: #FBFBFB;
  --warna-oren: #FAA533;
  --warna-biru: #0BA6DF;
  --warna-hijau: #28a745;
  --warna-gelap: #333;
  --warna-abu: #555;
  
  --warna-gelap-biru: #091057; /* Biru Navy */
  --warna-medium-biru: #024CAA; /* Biru Sedang */
  --warna-cerah-biru: #5bc0de; /* Biru untuk hero/gradasi gelombang */
  
  --font-utama: 'Poppins', sans-serif;
  --navbar-height: 80px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--navbar-height); 
}

body {
  font-family: var(--font-utama);
  background-color: var(--warna-putih); 
  color: var(--warna-gelap);
  overflow-x: hidden;
  line-height: 1.6;
  
  animation: fadeIn 0.5s ease-in-out forwards;
  opacity: 0;
}

.site-content {
  min-height: calc(100vh - 100px); 
}


@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* --- 2. Halaman Login & Register --- */
/* (Tidak ada perubahan) */
.login-container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: linear-gradient(135deg, var(--warna-medium-biru), var(--warna-gelap-biru));
  padding: 1rem;
}
.login-form {
  background: var(--warna-putih);
  padding: 2.5rem 3rem;
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  width: 100%;
  max-width: 420px;
  text-align: center;
}
.login-logo {
  display: block;
  text-align: center;
  margin-bottom: 2rem;
  font-size: 2.5rem; 
  text-shadow: none; 
  background: linear-gradient(45deg, var(--warna-oren), var(--warna-medium-biru));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
}
.form-group {
  margin-bottom: 1.25rem;
  text-align: left;
}
.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--warna-abu);
}
.form-group input {
  width: 100%;
  padding: 0.85rem;
  border: 1px solid #ccc;
  border-radius: 10px;
  font-family: var(--font-utama);
  font-size: 1rem;
  background-color: #fff; 
}
.form-switch {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--warna-abu);
}
.form-switch a {
  color: var(--warna-medium-biru);
  font-weight: 600;
  text-decoration: none;
}
.form-switch a:hover {
  text-decoration: underline;
}

/* --- 3. Animasi & Utility --- */
.reveal-fade {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.reveal-fade.visible {
  opacity: 1;
  transform: translateY(0);
}

.btn {
  padding: 0.7rem 1.5rem; 
  border: none;
  border-radius: 50px;
  font-family: var(--font-utama);
  font-weight: 600;
  font-size: 1rem; 
  text-decoration: none;
  color: var(--warna-putih);
  cursor: pointer;
  transition: all 0.3s ease;
}
.btn-login {
  background-color: var(--warna-hijau);
  box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
}
.btn-login:hover {
  background-color: #218838;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(40, 167, 69, 0.5);
}
.btn-register {
  background-color: var(--warna-oren);
  box-shadow: 0 4px 15px rgba(250, 165, 51, 0.3);
}
.btn-register:hover {
  background-color: #e69520;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(250, 165, 51, 0.5);
}

/* --- 4. Navbar --- */
.sticky-navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 5%;
  background-color: transparent; 
  transition: background-color 0.4s ease-out, box-shadow 0.4s ease-out;
}
.sticky-navbar.scrolled {
  background-color: var(--warna-biru);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}
.navbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
}
.logo-nav {
  font-size: 1.8rem;
  font-weight: 800;
  text-decoration: none;
  background: linear-gradient(45deg, var(--warna-oren), var(--warna-biru));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
  text-shadow: 0px 0px 3px rgba(255,255,255,0.3);
}
.sticky-navbar.scrolled .logo-nav {
  background: var(--warna-oren);
  -webkit-background-clip: text;
  background-clip: text;
  text-shadow: none;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.nav-link {
  text-decoration: none;
  color: var(--warna-gelap); 
  font-weight: 600;
  font-size: 1rem;
  padding: 0.3rem 0.5rem;
  border-radius: 5px;
  position: relative;
  transition: color 0.4s ease-out;
}
.sticky-navbar.scrolled .nav-link {
  color: var(--warna-putih); 
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--warna-oren), #ffc107);
  border-radius: 2px;
  transition: width 0.3s ease;
}
.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}
.nav-buttons {
  display: flex;
  gap: 0.8rem;
}
.hamburger {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}
.hamburger span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--warna-gelap); 
  border-radius: 3px;
  transition: all 0.3s ease;
}
.sticky-navbar.scrolled .hamburger span {
  background-color: var(--warna-putih); 
}

/* --- 5. Hero & Wavy Dividers --- */
.hero-section {
position: relative;
height: 118vh;  
/* 1. Ini gambar default untuk desktop */
background-image: url("../assets/images/2.png");
background-size: cover;
background-position: center; 
background-blend-mode: multiply;
background-attachment: scroll; 
}

/* 2. Ini adalah 'perintah' khusus untuk layar kecil (HP) */
@media (max-width: 768px) {
.hero-section {
/* 3. Ganti gambarnya pakai versi mobile! */
background-image: url("../assets/images/ini.png");
/* 'background-size: cover' akan bekerja sempurna di sini
       karena rasio aspek gambarnya sudah pas (portrait) */
}
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--warna-putih);
  text-shadow: 0 2px 10px rgba(0,0,0,0.3);
  margin-bottom: 0.5rem;
}
.hero-content p {
  font-size: 1.3rem;
  color: var(--warna-putih);
  text-shadow: 0 1px 5px rgba(0,0,0,0.3);
}

.wavy-divider-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  line-height: 0;
  z-index: 10;
  transform: rotate(180deg); 
}
.wavy-divider-bottom svg {
  position: relative;
  display: block;
  width: calc(100% + 1.3px);
  height: 100px;
}
.wavy-divider-bottom .shape-fill,
.wavy-divider-bottom .shape-fill-white {
  fill: var(--warna-putih); 
}

.wavy-divider-top {
  position: absolute;
  top: -1px; 
  left: 0;
  width: 100%;
  line-height: 0;
  z-index: 10;
}
.wavy-divider-top svg {
  position: relative;
  display: block;
  width: calc(100% + 1.3px);
  height: 100px;
}
.wavy-divider-top .shape-fill-white {
  fill: var(--warna-putih);
}

/* --- 6. Content Sections --- */
.content-section {
  padding: 8rem 5%; 
  max-width: 1400px;
  margin: 0 auto;
  position: relative;
}
.content-section.bg-orange {
  background: linear-gradient(to bottom, var(--warna-oren) 90%, #f7d49e); 
  color: var(--warna-putih); 
}
.content-section.bg-blue {
  background: linear-gradient(to bottom, var(--warna-biru) 95%, var(--warna-cerah-biru)); 
  color: var(--warna-putih); 
  padding-bottom: 20rem; 
}

/* Atur warna fill gelombang per section */
#beranda .wavy-divider-bottom .shape-fill {
  fill: var(--warna-putih);
}
#video .wavy-divider-top .shape-fill-white {
  fill: var(--warna-putih); 
}
#video .wavy-divider-bottom .shape-fill-white {
  fill: var(--warna-putih);
}
#kuis .wavy-divider-top .shape-fill-white {
  fill: var(--warna-putih);
}
#kuis .wavy-divider-bottom .shape-fill-white {
  fill: var(--warna-oren); /* Warna footer */
}


.content-section.bg-orange .section-title,
.content-section.bg-blue .section-title {
  color: var(--warna-putih);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
}
[data-color="blue"] { color: var(--warna-biru); }
[data-color="orange"] { color: var(--warna-oren); }
[data-color="white"] { color: var(--warna-putih); }

.section-description {
  font-size: 1.1rem;
  font-weight: 400;
  color: var(--warna-abu);
  text-align: center;
  max-width: 800px; /* Biar rapi di layar lebar */
  margin: -2rem auto 3rem auto; /* Tarik ke atas & beri jarak bawah */
}

/* Ganti warna deskripsi di section oranye/biru */
.content-section.bg-orange .section-description,
.content-section.bg-blue .section-description {
  color: var(--warna-putih);
  opacity: 0.9;
}

/* DIEDIT: Bungkus tombol "Lihat Semua" */
.lihat-semua-container {
  width: 100%;
  text-align: center;
  margin-top: 2.5rem;
}
.btn-lihat-semua {
  display: inline-block;
  /* margin-top: 2.5rem; Dihapus */
  padding: 0.7rem 1.8rem;
  background-color: var(--warna-gelap-biru); 
  color: var(--warna-putih);
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
}
.btn-lihat-semua:hover {
  background-color: var(--warna-medium-biru);
  transform: translateY(-2px);
}
.btn-lihat-semua.btn-lihat-semua-white {
  background-color: var(--warna-putih);
  color: var(--warna-oren);
}
.btn-lihat-semua.btn-lihat-semua-white:hover {
  background-color: #f0f0f0;
}

.item-card-content p {
  font-size: 0.9rem;
  color: var(--warna-abu);
  font-weight: 500;
  line-height: 1.4;
}

/* --- 7. Card Styles (Buku, Video, Puisi) --- */
.item-grid {
  display: grid;
  gap: 2rem;
}
.item-grid.grid-3-col {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}
.item-grid.grid-5-col {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.item-card-cover img {
  width: 100%;
  height: 100%; /* (Ini 100% dari 200px tinggi parent-nya) */
/* Ini 'sihir'-nya:
     'cover' akan zoom gambar agar pas & memotong 
     (crop) sisanya, BUKAN bikin penyok. */
  object-fit: cover; 
}
.item-card {
  background: var(--warna-putih);
  border-radius: 20px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  text-decoration: none;
  color: var(--warna-gelap);
  transition: all 0.3s ease;
}
.item-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}
.item-card-cover {
  width: 100%;
  height: 200px;
  background-image: linear-gradient(45deg, var(--warna-biru), var(--warna-medium-biru)); 
  display: flex;
  justify-content: center;
  align-items: center;
  color: white;
  font-weight: 600;
}
.item-card-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.item-card-content {
  padding: 1.2rem;
  text-align: center;
}
.item-card-content h3 {
  font-weight: 700;
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}
.item-card-content p {
  font-size: 0.9rem;
  color: var(--warna-abu);
  font-weight: 500;
  line-height: 1.4;
}

/* --- 8. Kuis Section --- */
.straight-divider-top {
  position: absolute;
  top: 0;
  left:0px;
  width: 100%;
  height: 200px; 
  background-color: var(--warna-putih); 
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10; 
}

.straight-divider-top img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.quiz-title-bar {
  background-color: rgba(255,255,255, 0.2); 
  padding: 0.8rem;
  border-radius: 10px;
  margin-top: 180px; 
  margin-bottom: 2.5rem;
}
.quiz-title-bar h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--warna-putih);
  text-align: center;
}

.quiz-grid {
  display: flex;
  justify-content: space-around;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}
.quiz-card {
  background: var(--warna-putih);
  border-radius: 20px;
  padding: 2rem 1.5rem;
  width: 250px;
  text-align: center;
  text-decoration: none;
  color: var(--warna-gelap);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}
.quiz-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.15);
}
.quiz-emoji {
  font-size: 3.5rem;
  display: block;
  margin-bottom: 1rem;
}
.quiz-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
}

/* --- 9. Footer --- */
.fat-footer {
  background-color: var(--warna-oren); 
  color: var(--warna-gelap); 
  padding: 4rem 5%;
  position: relative; 
  z-index: 5; 
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}
.footer-brand h2 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--warna-gelap-biru); 
  margin-bottom: 0.5rem;
}
.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.5;
  max-width: 350px;
}
.footer-links h4,
.footer-contact h4 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--warna-gelap-biru); 
  margin-bottom: 1rem;
}
.footer-links ul {
  list-style: none;
}
.footer-links li {
  margin-bottom: 0.5rem;
}
.footer-links a {
  text-decoration: none;
  color: var(--warna-gelap); 
  transition: color 0.3s ease;
}
.footer-links a:hover {
  color: var(--warna-biru); 
}
.footer-contact p {
  font-size: 0.9rem;
  line-height: 1.5;
}

.copyright-bar {
  background-color: #e69520; 
  color: var(--warna-putih); 
  text-align: center;
  padding: 1rem 5%;
  font-size: 0.85rem;
}

/* --- 10. Responsive --- */
@media (max-width: 992px) {
  /* Tablet */
  .hamburger {
    display: flex;
    z-index: 1001; 
  }
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%; 
    width: 60%;
    height: 100vh;
    background-color: var(--warna-gelap-biru); 
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    transition: right 0.4s ease-in-out;
  }
  .nav-links.active {
    right: 0; 
  }
  .nav-link,
  .sticky-navbar.scrolled .nav-link {
    color: var(--warna-putih);
    font-size: 1.3rem;
  }
  .nav-buttons {
    flex-direction: column;
    gap: 1rem;
    position: absolute;
    bottom: 5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
  }
  .btn-login, .btn-register {
    width: 100%;
    text-align: center;
  }
  
  .hamburger.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
    background-color: var(--warna-putih);
  }
  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }
  .hamburger.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
    background-color: var(--warna-putih);
  }
  
  .hero-content h1 { font-size: 3rem; }
  .hero-content p { font-size: 1.1rem; }
  
  .item-grid.grid-3-col { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
  .item-grid.grid-5-col { grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
  
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  /* HP Kecil */
  .hero-content h1 { font-size: 2.5rem; }
  .section-title { font-size: 2rem; }
  
  .item-grid.grid-3-col,
  .item-grid.grid-5-col {
    grid-template-columns: 1fr;
  }
  
  .quiz-grid { flex-direction: column; }
  .quiz-card { width: 100%; max-width: 300px; }
  
  .nav-links { width: 80%; }
}

/* --- 11. Viewer Styles (dari project lama) --- */
.main-container {
  padding-top: var(--navbar-height);
  padding-bottom: 2rem;
}
.sticky-header-card {
  position: sticky;
  top: var(--navbar-height);
  z-index: 900;
  background: var(--warna-putih);
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.2rem 2rem;
  border-radius: 0 0 20px 20px;
  text-align: center;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
  margin-bottom: 3rem;
}
.sticky-header-card .page-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--warna-gelap-biru);
  margin-bottom: 0.5rem;
}
.page-description {
  font-size: 1.1rem;
  color: var(--warna-abu);
  font-weight: 500;
  line-height: 1.5;
}
.page-title { 
  font-size: 2rem;
  font-weight: 700;
  color: var(--warna-gelap-biru);
  margin-bottom: 2rem;
  text-align: center;
  padding-top: var(--navbar-height);
}

.viewer-container { 
  width: 100%; 
  height: 100vh; 
  display: flex; 
  flex-direction: column; 
  background: #fbfbfb; 
  overflow: hidden; 
  position: fixed; 
  top: 0;
  left: 0;
}
.viewer-header { 
  background: var(--warna-putih); 
  padding: 0.75rem 2rem; 
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1); 
  flex-shrink: 0; 
  display: flex; 
  align-items: center; 
  height: 60px;
}
.btn-back { 
  background: var(--warna-gelap-biru); 
  color: var(--warna-putih); 
  padding: 0.5rem 1.2rem; 
  border-radius: 50px; 
  font-family: var(--font-utama); 
  font-size: 0.9rem; 
  font-weight: 600; 
  cursor: pointer; 
  text-decoration: none; 
  transition: all 0.3s ease; 
}
.btn-back:hover { background: var(--warna-medium-biru); }
.viewer-content { 
  flex-grow: 1; 
  width: 100%; 
  position: relative; 
  display: flex; 
  justify-content: center;
  align-items: center;
  padding: 1rem; 
}
.pdf-viewer { 
  width: 100%; 
  height: 100%; 
  border: none; 
  max-width: 1000px; 
  max-height: calc(100vh - 60px - 2rem); 
}
.video-responsive-wrapper {
  position: relative;
  width: 100%;
  overflow: hidden;
  max-width: 1000px; 
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(8, 6, 6, 0.3);
  margin: auto;
  /* 1. Jaga rasio 16:9 secara otomatis */
  aspect-ratio: 16 / 9;

  /* 2. Batasi tinggi agar tidak kepotong di laptop */
  max-height: calc(100vh - 60px - 2rem); /* 60px header + 2rem padding */

  /* 3. Latar belakang jika video lebih kecil (letterbox) */
  background: #000;
}
.video-responsive-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
}