/* Tampilan halaman fitur publik (habit-tracker, catat-keuangan,
   tracker-investasi-kripto). HTML biasa tanpa JavaScript — biar Google
   langsung bisa baca isinya dan halamannya cepat kebuka di HP.
   Warnanya ikut aplikasi (mode gelap). */

:root {
  --latar: #101b1c;
  --latar2: #1b2a2c;
  --kartu: rgba(242, 245, 243, 0.05);
  --garis: rgba(242, 245, 243, 0.12);
  --teks: #f2f5f3;
  --redup: rgba(242, 245, 243, 0.72);
  --teal: #2dd4bf;
  --teal-lembut: rgba(45, 212, 191, 0.14);
}

* {
  box-sizing: border-box;
}
html {
  -webkit-text-size-adjust: 100%;
  /* Cadangan: di bawah gradien tetap gelap, jadi teks terang selalu kebaca. */
  background: var(--latar);
}
body {
  margin: 0;
  background: radial-gradient(circle at 85% 0%, rgba(45, 212, 191, 0.16), transparent 40%),
    linear-gradient(170deg, var(--latar2), var(--latar) 60%);
  /* Jangan pakai background-attachment: fixed — di HP (Safari/Chrome) dia
     sering nggak jalan, dan latar di bawah layar pertama jadi putih. */
  background-repeat: no-repeat;
  min-height: 100vh;
  color: var(--teks);
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  font-size: 17px;
  line-height: 1.6;
}
a {
  color: var(--teal);
}
img {
  max-width: 100%;
  height: auto;
}

.bungkus {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------------------------------------------------------- kepala */
.kepala {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 0;
}
.merek {
  display: flex;
  align-items: center;
  min-height: 44px;
  gap: 10px;
  color: var(--teks);
  font-weight: 800;
  font-size: 20px;
  text-decoration: none;
}
.merek img {
  width: 32px;
  height: 32px;
}
.kepala__masuk {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 18px;
  border: 1px solid var(--garis);
  border-radius: 99px;
  color: var(--teks);
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
}

/* ---------------------------------------------------------- pembuka */
.pembuka {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: 48px;
  align-items: center;
  padding: 40px 0 56px;
}
.label {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 99px;
  background: var(--teal-lembut);
  color: #5eead4;
  font-size: 14px;
  font-weight: 700;
}
h1 {
  margin: 16px 0 16px;
  font-size: clamp(32px, 6vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.5px;
  font-weight: 800;
}
h1 em {
  font-style: normal;
  color: var(--teal);
}
.pembuka__isi > p {
  margin: 0 0 28px;
  color: var(--redup);
  font-size: 19px;
}
.tombol {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 28px;
  border-radius: 99px;
  background: var(--teal);
  color: #04211e;
  font-weight: 800;
  font-size: 17px;
  text-decoration: none;
  box-shadow: 0 10px 30px rgba(45, 212, 191, 0.25);
}
.tombol:hover,
.tombol:focus-visible {
  background: #5eead4;
}
.harga {
  margin: 12px 0 0;
  color: var(--redup);
  font-size: 14px;
}
.hp {
  justify-self: center;
  width: 100%;
  max-width: 300px;
  border-radius: 32px;
  overflow: hidden;
  border: 6px solid rgba(242, 245, 243, 0.12);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5);
  background: var(--latar);
}
.hp img {
  display: block;
  width: 100%;
}

/* ---------------------------------------------------------- bagian */
section {
  padding: 40px 0;
}
h2 {
  margin: 0 0 20px;
  font-size: clamp(24px, 4vw, 32px);
  line-height: 1.2;
  font-weight: 800;
}
.kisi {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr));
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.kisi li {
  padding: 22px;
  border: 1px solid var(--garis);
  border-radius: 20px;
  background: var(--kartu);
}
.kisi strong {
  display: block;
  margin-bottom: 6px;
  font-size: 18px;
}
.kisi span {
  color: var(--redup);
  font-size: 16px;
}
.langkah {
  counter-reset: langkah;
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.langkah li {
  counter-increment: langkah;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}
.langkah li::before {
  content: counter(langkah);
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--teal-lembut);
  color: var(--teal);
  font-weight: 800;
}
.langkah p {
  margin: 8px 0 0;
}
.catatan {
  padding: 18px 20px;
  border-left: 4px solid var(--teal);
  border-radius: 0 16px 16px 0;
  background: var(--kartu);
  color: var(--redup);
}
.catatan p {
  margin: 0;
}

/* ---------------------------------------------------------- tanya jawab */
details {
  border-bottom: 1px solid var(--garis);
}
summary {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 0;
  font-weight: 700;
  font-size: 18px;
  cursor: pointer;
  list-style: none;
}
summary::-webkit-details-marker {
  display: none;
}
summary::after {
  content: '+';
  color: var(--teal);
  font-size: 24px;
  line-height: 1;
}
details[open] summary::after {
  content: '−';
}
details p {
  margin: 0 0 18px;
  color: var(--redup);
}

/* ---------------------------------------------------------- penutup */
.penutup {
  margin: 24px 0 48px;
  padding: 40px 28px;
  border: 1px solid var(--garis);
  border-radius: 28px;
  background: linear-gradient(160deg, rgba(45, 212, 191, 0.16), rgba(45, 212, 191, 0.04));
  text-align: center;
}
.penutup p {
  margin: 0 0 24px;
  color: var(--redup);
}
.lain {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.lain a {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid var(--garis);
  border-radius: 99px;
  color: var(--teks);
  font-weight: 700;
  text-decoration: none;
}
.kaki {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 24px;
  padding: 24px 0 40px;
  border-top: 1px solid var(--garis);
  color: var(--redup);
  font-size: 14px;
}
.kaki nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
}
.kaki a {
  color: var(--redup);
}

@media (max-width: 760px) {
  body {
    font-size: 16px;
  }
  .pembuka {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    padding: 20px 0 32px;
  }
  .pembuka__isi > p {
    font-size: 17px;
  }
  .tombol {
    width: 100%;
  }
  .hp {
    max-width: 260px;
  }
  section {
    padding: 28px 0;
  }
}

/* ------------------------------------------------ panduan (artikel) */
.remah {
  font-size: 14px;
  color: var(--redup);
  margin: 8px 0 4px;
}
.remah a {
  color: var(--redup);
}
.artikel {
  max-width: 720px;
}
.artikel h1 {
  font-size: clamp(28px, 6vw, 42px);
  line-height: 1.15;
  margin: 12px 0 8px;
}
.artikel h1 em,
.artikel em {
  color: var(--teal);
  font-style: normal;
}
.artikel h2 {
  margin-top: 36px;
}
.artikel__tanggal {
  font-size: 14px;
  color: var(--redup);
  margin-top: 0;
}
.artikel p,
.artikel li {
  color: var(--teks);
}
.artikel li + li {
  margin-top: 6px;
}
.artikel details {
  border-top: 1px solid var(--garis);
  padding: 12px 0;
}
.artikel summary {
  cursor: pointer;
  font-weight: 700;
}
.rumus {
  background: var(--teal-lembut);
  border-left: 3px solid var(--teal);
  padding: 12px 16px;
  border-radius: 8px;
  font-weight: 700;
}
/* Tabel lebar di HP: digeser ke samping, halamannya sendiri nggak melebar. */
.tabel {
  display: block;
  overflow-x: auto;
  border-collapse: collapse;
  max-width: 100%;
  font-size: 15px;
  margin: 12px 0;
}
.tabel th,
.tabel td {
  border-bottom: 1px solid var(--garis);
  padding: 8px 12px;
  text-align: left;
  white-space: nowrap;
}
.tabel th {
  color: var(--redup);
  font-weight: 600;
}
.daftar-artikel {
  list-style: none;
  padding: 0;
  margin: 24px 0;
  display: grid;
  gap: 12px;
}
.daftar-artikel a {
  display: block;
  padding: 16px 18px;
  border: 1px solid var(--garis);
  border-radius: 14px;
  background: var(--kartu);
  text-decoration: none;
  color: var(--teks);
}
.daftar-artikel a:hover,
.daftar-artikel a:focus-visible {
  border-color: var(--teal);
}
.daftar-artikel strong {
  display: block;
  color: var(--teal);
  margin-bottom: 4px;
}
.daftar-artikel span {
  color: var(--redup);
  font-size: 15px;
}

/* ------------------------------------------------ kalkulator */
.kalk {
  max-width: 720px;
}
.kalk-baris {
  display: grid;
  grid-template-columns: 92px 1fr 1fr 1fr 40px;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}
.kalk-kepala {
  font-size: 13px;
  color: var(--redup);
}
.kalk input,
.kalk select {
  width: 100%;
  min-width: 0;
  height: 44px;
  padding: 0 10px;
  border-radius: 10px;
  border: 1px solid var(--garis);
  background: rgba(0, 0, 0, 0.25);
  color: var(--teks);
  font: inherit;
  font-size: 16px;
}
.kalk-hapus {
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--garis);
  background: transparent;
  color: var(--redup);
  font-size: 20px;
  cursor: pointer;
}
.kalk-tambah {
  margin: 4px 0 20px;
  height: 44px;
  padding: 0 16px;
  border-radius: 10px;
  border: 1px dashed var(--teal);
  background: transparent;
  color: var(--teal);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}
.kalk-hasil {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin: 8px 0 12px;
}
.kalk-hasil div {
  border: 1px solid var(--garis);
  border-radius: 14px;
  padding: 14px 16px;
  background: var(--kartu);
}
.kalk-hasil span {
  display: block;
  font-size: 13px;
  color: var(--redup);
}
.kalk-hasil b {
  font-size: 20px;
}
.kalk-pesan {
  color: #fb923c;
  min-height: 1.6em;
}
@media (max-width: 560px) {
  /* HP: [jenis ......... ×] / [jumlah][harga ...] / [biaya ..........] */
  .kalk-baris {
    grid-template-columns: 1fr 1fr 44px;
    margin-bottom: 14px;
  }
  .kalk-baris > :nth-child(1) {
    grid-column: 1 / 3;
    grid-row: 1;
  }
  .kalk-baris > :nth-child(5) {
    grid-column: 3;
    grid-row: 1;
  }
  .kalk-baris > :nth-child(2) {
    grid-column: 1;
    grid-row: 2;
  }
  .kalk-baris > :nth-child(3) {
    grid-column: 2 / 4;
    grid-row: 2;
  }
  .kalk-baris > :nth-child(4) {
    grid-column: 1 / 4;
    grid-row: 3;
  }
  .kalk-kepala {
    display: none;
  }
}