/* ===== Palet dari logo =====
   Hijau UPN:  #1F4D2C (primary)
   Kuning Emas: #D4B200 (accent)
   Hijau muda lembut: #2E5F39 (hover/variasi)
   Cream terang: #FFF8E6 (kontainer)
*/
:root{
  --green: #1F4D2C;
  --green-2: #2E5F39;
  --gold: #D4B200;
  --text: #24352B;
  --container: #FFF8E6;
  --white: #FFFFFF;

  --shadow-strong: 0 18px 40px rgba(0,0,0,.14), 0 6px 14px rgba(0,0,0,.06);
  --shadow-soft: 0 10px 24px rgba(0,0,0,.10), 0 3px 8px rgba(0,0,0,.05);

  --radius: 16px;
  --radius-lg: 22px;
}

*{ box-sizing: border-box; }
html, body{ height: 100%; }
body{
  margin: 0;
  color: var(--text);
  font-family: "Montserrat", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;

  /* Background tidak polos: radial gradient + grain halus */
  background:
    radial-gradient(1200px 800px at 20% 0%, #2F6A3A 0%, #244D2E 35%, #1F3F28 70%, #102416 100%),
    radial-gradient(800px 600px at 80% 100%, #446B2F55, #0000 60%),
    linear-gradient(#254D2A, #1E3B24);
  position: relative;
}
body::before{
  /* motif halus */
  content:"";
  position: fixed; inset: 0;
  background-image:
    radial-gradient(#0000000f 1px, transparent 1px),
    radial-gradient(#0000000a 1px, transparent 1px);
  background-size: 24px 24px, 36px 36px;
  background-position: 0 0, 12px 18px;
  pointer-events: none;
}

.wrapper{
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
}

.card-container{
  width: 100%;
  max-width: 680px;
  background: var(--container);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-strong);
  padding: 28px 22px;
  border: 2px solid #e8dcaf;
}

.site-header{
  text-align: center;
  margin-bottom: 12px;
}
.brand-logo{
  width: 88px; height: 88px;
  object-fit: contain;
  display: block;
  margin: 0 auto 10px;
  filter: drop-shadow(0 6px 12px rgba(0,0,0,.15));
}
.site-title{
  font-family: "Playfair Display", Georgia, serif;
  font-size: 1.8rem;
  margin: 0 0 6px;
}
.site-tagline{ font-weight: 700; margin: 0 0 6px; }
.site-desc{ margin: 0 auto 12px; max-width: 56ch; }

/* ===== Visi-Misi Buttons ===== */
.vm-actions{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 10px 0 6px;
}
.vm-btn{
  display: inline-grid;
  grid-auto-flow: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 12px;
  font-weight: 700;
  color: #0f2016;
  border: 0;
  cursor: pointer;
  box-shadow: var(--shadow-soft);
  transition: transform .12s ease, filter .12s ease, background-color .15s ease;
}
.vm-btn:active{ transform: translateY(1px); filter: brightness(.98); }
.btn-green{ background: #A6CFB4; } /* hijau lembut agar kontras */
.btn-green:hover{ background: #90bf9f; }
.btn-gold{ background: #F0D66B; }
.btn-gold:hover{ background: #E8C842; }

/* ===== Flashcard (per item) ===== */
.flashcard{
  margin: 8px 0 16px;
  perspective: 1200px;
}
.is-hidden{ display: none; }

.flashcard-inner{
  background: #FFF2C7; /* nuansa krem-kuning */
  border: 1.5px solid #e9d39b;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  transform-style: preserve-3d;
  transition: transform .7s cubic-bezier(.2,.65,.2,1);
}
.flashcard.is-flipped .flashcard-inner{ transform: rotateY(180deg); }

.flashcard-face{
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  padding: 18px 16px;
  min-height: 150px;
  border-radius: var(--radius);
}
.flashcard-back{
  position: absolute;
  inset: 0;
  transform: rotateY(180deg);
}
.flashcard h3, .flashcard h4{
  margin: 0 0 8px;
  font-family: "Playfair Display", Georgia, serif;
}
.flashcard ul{ margin: 0 0 8px 18px; padding: 0; }
.flip-hint{
  display: inline-flex;
  align-items: center; gap: 6px;
  font-size: .9rem; font-weight: 600; opacity: .9;
}

/* ===== Link Groups ===== */
.links-group{ margin: 18px 0; }
.section-title{
  display: flex; align-items: center; gap: 10px;
  font-family: "Playfair Display", Georgia, serif;
  font-size: 1.25rem; margin: 0 0 10px;
}
.dot{ width: 12px; height: 12px; border-radius: 50%; box-shadow: var(--shadow-soft); }
.dot-green{ background: #A6CFB4; }
.dot-gold{ background: #F0D66B; }

.subsection{
  margin: 12px 0 8px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--green);
  display: flex; align-items: center; gap: 8px;
}

.links{ display: grid; gap: 10px; }
.link-btn{
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center; gap: 10px;
  padding: 14px 16px;
  border-radius: 14px;
  font-weight: 700;
  text-decoration: none;
  color: var(--text);
  box-shadow: var(--shadow-soft);
  transition: transform .12s ease, filter .12s ease, background-color .15s ease;
}
.link-btn .ext{ opacity: .85; }
.link-btn:active{ transform: translateY(1px); filter: brightness(.98); }

.btn-gold{ background: #F0D66B; }
.btn-gold:hover{ background: #E8C842; }
.btn-green{ background: #A6CFB4; }
.btn-green:hover{ background: #90bf9f; }

.site-footer{
  margin-top: 22px; text-align: center; font-size: .95rem; opacity: .95;
}

/* Responsif */
@media (min-width: 560px){
  .site-title{ font-size: 2rem; }
  .link-btn{ padding: 16px 18px; border-radius: 16px; }
}

/* Aksesibilitas: reduce motion */
@media (prefers-reduced-motion: reduce){
  .flashcard-inner{ transition: none; }
}