:root {
  --bg: #f6f4ff;            /* lilac lembut */
  --bg-soft: #efeaff;
  --ink: #2c2740;          /* ungu tinta gelap */
  --ink-soft: #7d7799;
  --violet: #7c5cff;
  --violet-dark: #5f3fe0;
  --pink: #ff6fa5;
  --card: #ffffff;
  --shadow: 0 12px 34px rgba(90, 63, 224, 0.12);
  --radius: 22px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Nunito', system-ui, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1100px 480px at 85% -12%, #e9d9ff 0%, transparent 60%),
    radial-gradient(820px 460px at -10% 18%, #ffe0ee 0%, transparent 55%),
    var(--bg);
  line-height: 1.6;
}

h1, h2, h3, .logo { font-family: 'Plus Jakarta Sans', 'Nunito', sans-serif; }

.site-header {
  display: flex; align-items: center; justify-content: space-between;
  max-width: 920px; margin: 0 auto; padding: 22px 20px;
}
.logo { font-size: 1.3rem; font-weight: 800; color: var(--violet-dark); }
.nav a { color: var(--ink-soft); text-decoration: none; margin-left: 20px; font-weight: 700; }
.nav a:hover { color: var(--violet-dark); }

main { max-width: 760px; margin: 0 auto; padding: 0 20px 60px; }

.hero { text-align: center; padding: 18px 0 26px; }
.hero h1 {
  font-size: 2.5rem; margin: 0 0 12px; font-weight: 800;
  background: linear-gradient(90deg, var(--violet), var(--pink));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .sub { font-size: 1.08rem; color: var(--ink-soft); max-width: 560px; margin: 0 auto; }

/* Tool */
.tool-card {
  background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 28px 26px; margin-bottom: 26px;
}
.field-label { display: block; font-weight: 800; margin: 0 0 10px; }
#topicInput {
  width: 100%; resize: vertical; font-family: inherit; font-size: 1rem;
  border: 1.5px solid #e4ddf7; border-radius: 14px; padding: 13px 15px;
  background: #fdfcff; color: var(--ink);
}
#topicInput:focus { outline: none; border-color: var(--violet); }

.options { display: grid; gap: 14px; margin: 18px 0 22px; }
.opt-label { display: block; font-size: 0.85rem; font-weight: 700; color: var(--ink-soft); margin-bottom: 7px; text-transform: uppercase; letter-spacing: 0.4px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  border: 1.5px solid #e4ddf7; background: #fbfaff; color: var(--ink-soft);
  padding: 7px 16px; border-radius: 999px; font-weight: 700; cursor: pointer;
  font-family: inherit; font-size: 0.92rem; transition: all .15s ease;
}
.chip:hover { border-color: var(--violet); color: var(--violet-dark); }
.chip.active { background: var(--violet); border-color: var(--violet); color: #fff; box-shadow: 0 5px 14px rgba(124,92,255,0.35); }

.btn {
  font-family: inherit; font-weight: 800; font-size: 1.05rem;
  border: none; border-radius: 14px; padding: 14px 30px; cursor: pointer;
  transition: transform .06s ease, box-shadow .2s ease, background .2s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  width: 100%;
  background: linear-gradient(90deg, var(--violet), var(--pink)); color: #fff;
  box-shadow: 0 8px 20px rgba(124,92,255,0.4);
}
.btn-primary:hover { filter: brightness(1.04); }
.btn-primary:disabled { opacity: .6; cursor: default; }

.status { margin-top: 16px; color: var(--ink-soft); font-weight: 700; text-align: center; }

.result { display: grid; gap: 12px; margin-top: 20px; }
.caption-card {
  text-align: left; background: #fbfaff; border: 1.5px solid #ece6fb;
  border-radius: 16px; padding: 15px 16px; position: relative;
}
.caption-card .teks { font-size: 1.04rem; color: var(--ink); white-space: pre-wrap; }
.caption-card .tags { color: var(--violet-dark); font-weight: 700; font-size: 0.92rem; margin-top: 8px; }
.caption-card .copy {
  margin-top: 12px; border: 1.5px solid var(--violet); background: transparent;
  color: var(--violet-dark); border-radius: 10px; padding: 6px 16px; font-weight: 700;
  cursor: pointer; font-family: inherit; font-size: 0.9rem;
}
.caption-card .copy:hover { background: var(--violet); color: #fff; }
.caption-card .copy.done { background: var(--pink); border-color: var(--pink); color: #fff; }

/* Konten */
.prose { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 26px 28px; margin-bottom: 22px; }
.prose h2 { margin-top: 0; }
.prose a { color: var(--violet-dark); }
.prose details { border-top: 1px solid #efeaff; padding: 12px 0; }
.prose summary { font-weight: 800; cursor: pointer; }
.prose details p { color: var(--ink-soft); margin: 8px 0 0; }

.site-footer { text-align: center; color: var(--ink-soft); padding: 30px 20px 50px; font-size: 0.92rem; }

@media (max-width: 560px) {
  .hero h1 { font-size: 2rem; }
}