/* =========================
   RESET DASAR
   ========================= */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Poppins', sans-serif;
  background: #f8f9fb;
  color: #333;
  line-height: 1.6;
}

/* =========================
   HEADER & LOGO
   ========================= */

.logo {
  width: 60px;
  max-width: 20vw;
  height: auto;
  margin-left: 12px;
  border-radius: 50%;
}

header {
  background-color: #004a99;
  color: #ffffff;
  padding: 15px 20px;
  display: flex;
  align-items: center;
  gap: 20px;
}

header h1 {
  font-size: 1.3rem;
  font-weight: 700;
}

.site-sub {
  font-size: 0.9rem;
  opacity: 0.9;
}

/* Tombol hamburger (disembunyikan di desktop) */
.nav-toggle {
  margin-left: auto;
  background: transparent;
  border: 2px solid #ffffff;
  color: #ffffff;
  font-size: 1.2rem;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  display: none; /* default: hanya tampil di HP via media query */
}

/* =========================
   NAVBAR - DESKTOP
   ========================= */

.navbar {
  background-color: #003366;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 10px 12px;
  gap: 18px;
}

.navbar a {
  text-decoration: none;
  color: #fff;
  font-weight: 600;
  padding: 6px 10px;
  display: inline-block;
}

/* Menu aktif di navbar */
.navbar a.active {
  background-color: #002850;
  border-radius: 4px;
}

/* Dropdown dasar */
.navbar .dropdown {
  position: relative;
}

.navbar .dropdown > a::after {
  content: " ▾";
}

/* Konten dropdown (default hidden) */
.navbar .dropdown-content {
  display: none;
  position: absolute;
  top: 36px;
  left: 0;
  min-width: 180px;
  background-color: #003366;
  border-radius: 4px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.18);
  z-index: 999;
}

.navbar .dropdown-content a {
  display: block;
  padding: 10px 12px;
  color: #ffffff;
}

/* Hover untuk desktop */
.navbar .dropdown:hover .dropdown-content {
  display: block;
}

/* Mode "open" (dipakai JS untuk HP) */
.navbar .dropdown.open .dropdown-content {
  display: block;
}

/* =========================
   HERO / BANNER (INDEX)
   ========================= */

/* HERO / SLIDER */
.hero {
  position: relative;
  width: 100%;
  height: 320px;
  overflow: hidden;
  background-color: #002850;
}

/* Container slider */
.hero-slider {
  position: relative;
  width: 100%;
  height: 100%;
}

/* Tiap slide */
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 0.7s ease;
}

.hero-slide.active {
  opacity: 1;
}

/* Gambar slide */
.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Teks di atas gambar */
.hero-caption {
  position: absolute;
  left: 50%;
  bottom: 18%;
  transform: translateX(-50%);
  text-align: center;
  color: #ffffff;
  text-shadow: 0 3px 6px rgba(0, 0, 0, 0.55);
  padding: 10px 18px;
  background: rgba(0, 0, 0, 0.35);
  border-radius: 10px;
}

.hero-caption h2 {
  font-size: 1.6rem;
  margin-bottom: 4px;
}

.hero-caption p {
  font-size: 0.95rem;
}

/* Titik indikator di bawah slider */
.hero-dots {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
}

.hero-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 1px solid #ffffff;
  background-color: rgba(255, 255, 255, 0.25);
  cursor: pointer;
  transition: 0.2s ease;
}

.hero-dot.active {
  background-color: #ffffff;
  transform: scale(1.1);
}

/* Responsif hero di HP */
@media (max-width: 768px) {
  .hero {
    height: 240px;
  }

  .hero-caption {
    bottom: 14%;
    padding: 8px 14px;
  }

  .hero-caption h2 {
    font-size: 1.2rem;
  }

  .hero-caption p {
    font-size: 0.8rem;
  }
}


/* =========================
   LAYOUT UTAMA
   ========================= */

.container {
  max-width: 1000px;
  margin: 22px auto;
  padding: 0 18px;
}

.section-title {
  font-size: 1.6rem;
  margin-bottom: 12px;
  color: #003366;
  font-weight: 700;
}

/* Grid cards umum */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.card {
  background: #ffffff;
  padding: 16px;
  border-radius: 8px;
  box-shadow: 0 1px 6px rgba(0,0,0,0.08);
}

.card h3 {
  color: #003366;
  margin-bottom: 8px;
}

.card p {
  font-size: 0.95rem;
}

/* ===== Layout dengan sidebar (index) ===== */
.layout-with-sidebar {
  display: grid;
  grid-template-columns: 2fr 1fr; /* konten utama lebih lebar */
  gap: 20px;
  align-items: flex-start;
}

.main-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Gallery images (untuk halaman galeri) */
.gallery-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 6px;
}

/* Footer */
footer {
  background-color: #003366;
  color: #ffffff;
  text-align: center;
  padding: 14px 0;
  margin-top: 30px;
}

/* Small text helper */
.small {
  font-size: 0.9rem;
  color: #666;
}

/* =========================
   SIDEBAR KALENDER
   ========================= */

.calendar-section .section-title {
  margin-bottom: 8px;
}

.calendar-widget {
  width: 100%;
  font-size: 0.9rem;
}

.cal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

#cal-month-year {
  font-weight: 600;
  color: #003366;
}

.cal-nav {
  border: 1px solid #ccd4e0;
  background: #f1f4fb;
  border-radius: 4px;
  padding: 2px 8px;
  cursor: pointer;
  font-size: 1rem;
}

.cal-nav:hover {
  background: #e1e7f5;
}

.cal-weekdays,
.cal-days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
}

.cal-weekdays span {
  font-weight: 600;
  padding: 4px 0;
  color: #003366;
  font-size: 0.75rem;
}

/* Mendukung span atau button di dalam cal-days */
.cal-days span,
.cal-days button {
  border: none;
  background: transparent;
  padding: 4px 0;
  margin: 2px 0;
  cursor: default;
  font-size: 0.8rem;
}

/* Hari di bulan lain (padding) */
.cal-days .other-month {
  color: #c0c4ce;
}

/* Hari di bulan ini */
.cal-days .current-month {
  color: #333;
}

/* Hari ini */
.cal-days .today {
  background: #003366;
  color: #fff;
  border-radius: 50%;
  width: 26px;
  height: 26px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* =========================
   HALAMAN MATERI PELAJARAN
   ========================= */

.materi-intro {
  font-size: 0.95rem;
  color: #555;
}

/* Grid khusus daftar pelajaran */
.subjects-grid {
  margin-top: 16px;
}

/* Kartu tiap mata pelajaran */
.subject-card {
  max-width: 220px;      /* supaya kartunya kecil & elegan */
  margin: 0 auto;        /* biar kartunya center di kolomnya */
  text-align: center;
}

/* Gambar sampul buku */
.subject-card img {
  display: block;
  width: 100%;           /* ikut lebar kartu (max 220px) */
  height: auto;          /* proporsional, TIDAK terpotong */
  margin: 0 auto 8px;
  border-radius: 6px;
}

/* Nama pelajaran di kartu materi */
.subject-card h3 {
  margin-bottom: 4px;
}

/* Link nama buku */
.book-link {
  display: inline-block;
  margin-top: 4px;
  font-size: 0.9rem;
  font-weight: 600;
  color: #003366;
  text-decoration: none;
}

.book-link:hover {
  text-decoration: underline;
}

/* =========================
   Tampilan artikel (artikel.html)
   ========================= */

.artikel-grid {
  align-items: stretch;
}

.artikel-card {
  display: flex;
}

.artikel-content {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
}

/* Thumbnail artikel */
.artikel-thumb {
  width: 100%;
  max-height: 180px;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 6px;
}

/* Meta: tanggal + penulis */
.artikel-meta {
  font-size: 0.8rem;
  color: #777;
}

/* Ringkasan artikel */
.artikel-ringkasan {
  font-size: 0.9rem;
}

/* Isi lengkap artikel */
.artikel-body {
  font-size: 0.9rem;
  margin-top: 4px;
}

/* Tombol baca selengkapnya */
.artikel-toggle {
  margin-top: 6px;
  align-self: flex-start;
  padding: 4px 10px;
  font-size: 0.85rem;
  border-radius: 4px;
  border: 1px solid #003366;
  background-color: #003366;
  color: #fff;
  cursor: pointer;
}

.artikel-toggle:hover {
  background-color: #002850;
}

/* =========================
   HEADER KONTAK + POSISI
   ========================= */

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 18px;
}

/* Kontainer ikon */
.header-contact {
  display: flex;
  gap: 14px;
  align-items: center;
}

/* Style ikon bundar */
.contact-circle {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 2px solid #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  text-decoration: none;
  cursor: pointer;
  transition: 0.25s ease;
}

/* SVG di dalam ikon */
.contact-circle .contact-icon {
  width: 22px;
  height: 22px;
}

/* Email & WA warna berbeda */
.contact-circle.email { border-color: #ffcb41; }
.contact-circle.wa    { border-color: #25D366; }

/* Hover efek */
.contact-circle:hover {
  background-color: rgba(255, 255, 255, 0.2);
  transform: scale(1.12);
}

/* =========================
   RESPONSIVE HP / TABLET
   ========================= */

@media (max-width: 900px) {
  .layout-with-sidebar {
    grid-template-columns: 1fr;
  }

  .sidebar {
    margin-top: 14px;
  }
}

@media (max-width: 768px) {
  /* Header di HP: judul ke bawah, hamburger tampil */
  header {
    flex-wrap: wrap;
    justify-content: space-between;
    text-align: left;
  }

  header h1 {
    font-size: 1.1rem;
  }

  .nav-toggle {
    display: block;
  }

  /* Navbar jadi vertical, hidden dulu */
  .navbar {
    flex-direction: column;
    align-items: stretch;
    display: none;
    padding: 8px 0;
  }

  /* Saat tombol hamburger diklik (class .open ditambah via JS) */
  .navbar.open {
    display: flex;
  }

  .navbar a {
    width: 100%;
    padding: 10px 16px;
  }

  /* Dropdown di HP: posisi statis, tanpa shadow */
  .navbar .dropdown-content {
    position: static;
    box-shadow: none;
    border-radius: 0;
    background-color: #002850;
  }

  /* Nonaktifkan hover di HP, biar tidak bentrok dengan klik */
  .navbar .dropdown:hover .dropdown-content {
    display: none;
  }

  /* Yang dipakai: class .open dari JS */
  .navbar .dropdown.open .dropdown-content {
    display: block;
  }

  /* Hero boleh sedikit lebih pendek di HP */
  .hero {
    height: 220px;
    font-size: 1.6rem;
    text-align: center;
  }

  .artikel-card {
    flex-direction: column;
  }

  .artikel-thumb {
    max-height: 200px;
  }

  .header-left {
    width: 100%;
  }

  .header-right {
    margin-left: auto;
    gap: 10px;
  }

  .contact-circle {
    width: 32px;
    height: 32px;
  }

  .contact-circle .contact-icon {
    width: 18px;
    height: 18px;
  }
}