/* ==========================================================================
   Halaman depan (frontend pengenalan).

   Berdiri sendiri, tidak memuat app.css. Nilai tokennya disalin persis dari
   sana supaya warna dan radiusnya identik dengan aplikasi, tapi kelas-kelas
   cangkang aplikasi (sidebar, tab, card) tidak ikut terbawa dan bertabrakan.

   Halaman ini hanya tampil bila App.halamanDepan dinyalakan — pada pemasangan
   klien biasa, "/" tetap langsung ke login seperti sebelumnya.
   ========================================================================== */

:root {
    --navy: #1F2A44;
    --navy-deep: #141D33;
    --ink: #243046;
    --muted: #6B7690;
    --line: #E4E8F0;
    --bg: #F4F6FA;
    --surface: #FFFFFF;
    --accent: #2F6FED;
    --accent-soft: #EAF1FE;
    --teal: #0E9F8A;
    --amber: #D98A18;
    --amber-soft: #FDF3E2;
    --ok: #17803D;
    --ok-soft: #DCFAE6;
    --radius: 14px;
    --shadow: 0 1px 2px rgba(20, 29, 51, .05), 0 8px 24px -12px rgba(20, 29, 51, .12);
    --shadow-besar: 0 2px 4px rgba(20, 29, 51, .04), 0 24px 60px -24px rgba(20, 29, 51, .28);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--surface);
    color: var(--ink);
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: var(--accent); }

.wadah {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

.sempit { max-width: 760px; }

/* ------------------------------------------------------------------ navigasi */

.atas {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 255, 255, .88);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
}

.atas-isi {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    height: 66px;
}

.merek {
    display: flex;
    align-items: center;
    gap: 11px;
    text-decoration: none;
    color: var(--navy);
}
.merek .tanda {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--accent);
    color: #fff;
    display: grid;
    place-items: center;
    font-weight: 800;
    font-size: 14px;
    letter-spacing: .02em;
}
.merek strong {
    font-size: 16px;
    font-weight: 800;
    letter-spacing: -.01em;
    display: block;
    line-height: 1.2;
}
.merek span {
    font-size: 12px;
    color: var(--muted);
    font-weight: 500;
}

.atas-tautan {
    display: flex;
    align-items: center;
    gap: 26px;
}
.atas-tautan a.biasa {
    color: var(--ink);
    text-decoration: none;
    font-size: 14.5px;
    font-weight: 600;
}
.atas-tautan a.biasa:hover { color: var(--accent); }

@media (max-width: 820px) {
    .atas-tautan a.biasa { display: none; }
}

/* -------------------------------------------------------------------- tombol */

.tombol {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 11px 20px;
    border-radius: 11px;
    font-weight: 700;
    font-size: 14.5px;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    white-space: nowrap;
}
.tombol-utama {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 1px 2px rgba(47, 111, 237, .3), 0 8px 20px -8px rgba(47, 111, 237, .5);
}
.tombol-utama:hover { background: #2560d8; }
.tombol-garis {
    background: var(--surface);
    color: var(--navy);
    border-color: var(--line);
}
.tombol-garis:hover { border-color: #c3cee2; }
.tombol-besar { padding: 14px 26px; font-size: 15.5px; }

/* ---------------------------------------------------------------------- hero */

.hero {
    background:
        radial-gradient(1000px 460px at 12% -8%, rgba(47, 111, 237, .10), transparent 62%),
        radial-gradient(760px 400px at 92% 4%, rgba(14, 159, 138, .09), transparent 60%),
        var(--surface);
    padding: 78px 0 0;
    border-bottom: 1px solid var(--line);
    overflow: hidden;
}

.mata {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-soft);
    color: var(--accent);
    font-size: 12.5px;
    font-weight: 700;
    letter-spacing: .06em;
    text-transform: uppercase;
    padding: 6px 13px;
    border-radius: 999px;
    margin-bottom: 22px;
}

h1 {
    font-size: clamp(2.15rem, 5.4vw, 3.55rem);
    line-height: 1.08;
    letter-spacing: -.032em;
    font-weight: 800;
    color: var(--navy);
    margin: 0 0 20px;
    max-width: 17ch;
    text-wrap: balance;
}
h1 em {
    font-style: normal;
    color: var(--accent);
}

.hero p.utama {
    font-size: 1.14rem;
    color: var(--muted);
    margin: 0 0 30px;
    max-width: 54ch;
}

.hero-aksi {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    margin-bottom: 18px;
}

.hero-nota {
    font-size: 13.5px;
    color: var(--muted);
    margin: 0 0 54px;
}

.hero-gambar {
    margin: 0 auto -1px;
    max-width: 1000px;
    border-radius: var(--radius) var(--radius) 0 0;
    border: 1px solid var(--line);
    border-bottom: 0;
    box-shadow: var(--shadow-besar);
    overflow: hidden;
    background: var(--bg);
}
.hero-gambar img { border-radius: var(--radius) var(--radius) 0 0; }

/* -------------------------------------------------------------------- bagian */

section.blok { padding: 84px 0; }
section.blok.abu { background: var(--bg); border-block: 1px solid var(--line); }

.kepala-blok { max-width: 640px; margin-bottom: 46px; }
.kepala-blok.tengah { margin-left: auto; margin-right: auto; text-align: center; }

.label {
    font-size: 12.5px;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: var(--accent);
    display: block;
    margin-bottom: 12px;
}

h2 {
    font-size: clamp(1.65rem, 3.6vw, 2.3rem);
    line-height: 1.18;
    letter-spacing: -.024em;
    font-weight: 800;
    color: var(--navy);
    margin: 0 0 14px;
    text-wrap: balance;
}

.kepala-blok p {
    font-size: 1.05rem;
    color: var(--muted);
    margin: 0;
}

h3 {
    font-size: 1.08rem;
    font-weight: 700;
    color: var(--navy);
    margin: 0 0 8px;
    letter-spacing: -.012em;
}

p { margin: 0 0 14px; }
p:last-child { margin-bottom: 0; }

/* -------------------------------------------------------------------- kisi */

.kisi {
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(auto-fit, minmax(268px, 1fr));
}
.kisi-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

/* Tangkapan layar dipaksa dua kolom. Dengan minmax yang lebih kecil, layar
   lebar memuat tiga kolom - empat kartu lalu tersusun 3+1 yang timpang, dan
   tiap gambar mengecil sampai isinya tidak lagi terbaca. */
.kisi-tangkapan { grid-template-columns: repeat(auto-fit, minmax(430px, 1fr)); }

.kotak {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px;
}
.kotak p { color: var(--muted); font-size: 15px; }

.rupa {
    width: 40px;
    height: 40px;
    border-radius: 11px;
    display: grid;
    place-items: center;
    margin-bottom: 15px;
    background: var(--accent-soft);
    color: var(--accent);
}
.rupa svg { width: 20px; height: 20px; }
.rupa.teal  { background: #E1F5F1; color: var(--teal); }
.rupa.amber { background: var(--amber-soft); color: var(--amber); }

/* ------------------------------------------------------------------- masalah */

.masalah {
    border-left: 3px solid var(--amber);
    padding: 2px 0 2px 20px;
}
.masalah + .masalah { margin-top: 26px; }
.masalah h3 { margin-bottom: 6px; }
.masalah p { color: var(--muted); font-size: 15.2px; }

/* ------------------------------------------------------------------ langkah */

.langkah-kisi {
    display: grid;
    gap: 28px;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    counter-reset: langkah;
}
.langkah { position: relative; padding-top: 46px; }
.langkah::before {
    counter-increment: langkah;
    content: counter(langkah, decimal-leading-zero);
    position: absolute;
    top: 0;
    left: 0;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: .08em;
    color: var(--accent);
    background: var(--accent-soft);
    padding: 5px 11px;
    border-radius: 8px;
    font-variant-numeric: tabular-nums;
}
.langkah p { color: var(--muted); font-size: 15px; }

/* --------------------------------------------------------------- tangkapan */

.tangkapan {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--surface);
    box-shadow: var(--shadow);
}
/* Rasio dipatok supaya keempat kartunya sama tinggi, dan gambar dipotong dari
   kiri-atas alih-alih diperkecil seluruhnya: diperkecil utuh, tulisan di
   dalamnya jadi terlalu kecil untuk dibaca dan kartunya jadi kepanjangan. */
.tangkapan img {
    border-bottom: 1px solid var(--line);
    width: 100%;
    /* height:auto wajib ada. Atribut height="..." pada <img> berlaku sebagai
       petunjuk presentasi, dan selama tingginya masih terpatok dari sana,
       aspect-ratio tidak pernah dipakai - kartunya jadi setinggi gambar asli. */
    height: auto;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    object-position: top left;
}
.tangkapan .keterangan { padding: 17px 20px; }
.tangkapan .keterangan h3 { margin-bottom: 5px; font-size: 1rem; }
.tangkapan .keterangan p { color: var(--muted); font-size: 14.2px; }

/* -------------------------------------------------------------------- demo */

.demo-panel {
    background: var(--navy);
    color: #fff;
    border-radius: 20px;
    padding: 48px;
    background-image:
        radial-gradient(700px 320px at 88% -20%, rgba(47, 111, 237, .5), transparent 62%),
        radial-gradient(520px 300px at 4% 116%, rgba(14, 159, 138, .32), transparent 60%);
}
.demo-panel h2 { color: #fff; }
.demo-panel > p { color: #C3CCDE; max-width: 56ch; }

.akun-kisi {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    margin: 26px 0 24px;
    max-width: 560px;
}
.akun {
    background: rgba(255, 255, 255, .09);
    border: 1px solid rgba(255, 255, 255, .16);
    border-radius: 11px;
    padding: 14px 17px;
}
.akun span {
    display: block;
    font-size: 11.5px;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: #93A2BE;
    font-weight: 700;
    margin-bottom: 4px;
}
.akun code {
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 15px;
    color: #fff;
    font-weight: 600;
    word-break: break-all;
}

.coba-daftar {
    margin: 0 0 28px;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 9px;
    max-width: 60ch;
}
.coba-daftar li {
    position: relative;
    padding-left: 27px;
    color: #C3CCDE;
    font-size: 15px;
}
.coba-daftar li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 9px;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--teal);
}

/* ------------------------------------------------------------------ banding */

.tabel-bungkus { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
table { border-collapse: collapse; width: 100%; min-width: 520px; font-size: 15px; }
th, td { text-align: left; padding: 14px 18px; border-bottom: 1px solid var(--line); vertical-align: top; }
th {
    background: var(--bg);
    font-size: 12px;
    letter-spacing: .07em;
    text-transform: uppercase;
    color: var(--muted);
    font-weight: 700;
    white-space: nowrap;
}
tr:last-child td { border-bottom: 0; }
td:first-child { font-weight: 600; color: var(--navy); width: 34%; }
td .ya { color: var(--ok); font-weight: 600; }
td .tidak { color: var(--muted); }

/* -------------------------------------------------------------------- tutup */

.tutup { text-align: center; padding: 88px 0; }
.tutup h2 { margin-bottom: 16px; }
.tutup p { color: var(--muted); max-width: 52ch; margin: 0 auto 28px; font-size: 1.05rem; }

footer.kaki {
    background: var(--navy-deep);
    color: #93A2BE;
    padding: 44px 0;
    font-size: 14px;
}
footer.kaki .wadah { display: flex; flex-wrap: wrap; gap: 20px; justify-content: space-between; align-items: flex-start; }
footer.kaki strong { color: #fff; display: block; margin-bottom: 5px; font-size: 15px; }
footer.kaki p { margin: 0; max-width: 46ch; line-height: 1.6; }
footer.kaki .sangkalan { font-size: 13px; color: #75839E; margin-top: 12px; }

/* ------------------------------------------------------------------ responsif */

@media (max-width: 700px) {
    .hero { padding-top: 52px; }
    section.blok { padding: 60px 0; }
    .demo-panel { padding: 32px 24px; }
    .hero-nota { margin-bottom: 40px; }
}

@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}

html { scroll-behavior: smooth; }

a:focus-visible, .tombol:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}