:root {
    color-scheme: light dark;
    --latar: #f3f6fb;
    --latar-2: #e9eff8;
    --kartu: #ffffff;
    --kartu-2: #f8fafc;
    --teks: #132238;
    --teks-lembut: #5b6b82;
    --garis: #dbe4f0;
    --utama: #0f766e;
    --utama-gelap: #115e59;
    --utama-lembut: #ccfbf1;
    --aksen: #f59e0b;
    --sukses: #15803d;
    --sukses-lembut: #dcfce7;
    --bahaya: #b91c1c;
    --bahaya-lembut: #fee2e2;
    --peringatan: #92400e;
    --peringatan-lembut: #fef3c7;
    --radius: 16px;
    --radius-kecil: 10px;
    --bayangan: 0 12px 34px rgba(15, 23, 42, 0.08);
    --bayangan-kecil: 0 4px 14px rgba(15, 23, 42, 0.06);
}

@media (prefers-color-scheme: dark) {
    :root {
        --latar: #0b1220;
        --latar-2: #111b2e;
        --kartu: #141f33;
        --kartu-2: #18253c;
        --teks: #e6eefc;
        --teks-lembut: #9fb0c8;
        --garis: #263650;
        --utama: #2dd4bf;
        --utama-gelap: #14b8a6;
        --utama-lembut: #103b3a;
        --sukses-lembut: #0f2e1d;
        --bahaya-lembut: #3a1414;
        --peringatan-lembut: #3a2a0d;
        --bayangan: 0 16px 40px rgba(0, 0, 0, 0.35);
        --bayangan-kecil: 0 6px 18px rgba(0, 0, 0, 0.25);
    }
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(1100px 500px at 10% -10%, rgba(45, 212, 191, 0.12), transparent 60%),
        radial-gradient(900px 420px at 100% 0%, rgba(245, 158, 11, 0.08), transparent 60%),
        var(--latar);
    color: var(--teks);
    font-family: "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    font-size: 15px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--utama);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

h1, h2, h3 {
    margin: 0 0 0.35em;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 {
    font-size: clamp(1.7rem, 3vw, 2.35rem);
}

h2 {
    font-size: 1.35rem;
}

h3 {
    font-size: 1.08rem;
}

p {
    margin: 0 0 0.8em;
}

small {
    color: var(--teks-lembut);
}

code {
    padding: 2px 6px;
    border-radius: 6px;
    background: var(--latar-2);
    font-family: "JetBrains Mono", "Fira Code", Consolas, monospace;
    font-size: 0.86em;
}

hr.pemisah {
    border: 0;
    border-top: 1px solid var(--garis);
    margin: 18px 0;
}

.wadah {
    width: min(1180px, calc(100% - 32px));
    margin-inline: auto;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 40;
    background: color-mix(in srgb, var(--kartu) 88%, transparent);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--garis);
}

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

.merek {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--teks);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.merek:hover {
    text-decoration: none;
}

.merek-ikon {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: 11px;
    background: linear-gradient(135deg, var(--utama), var(--utama-gelap));
    color: #ffffff;
    font-weight: 800;
    box-shadow: 0 6px 16px rgba(15, 118, 110, 0.3);
}

.nav {
    display: flex;
    align-items: center;
    gap: 18px;
    font-size: 0.94rem;
    font-weight: 600;
}

.nav a {
    color: var(--teks-lembut);
}

.nav a:hover {
    color: var(--utama);
    text-decoration: none;
}

.tautan {
    border: 0;
    background: transparent;
    color: var(--teks-lembut);
    font: inherit;
    cursor: pointer;
    padding: 0;
}

.tautan:hover {
    color: var(--bahaya);
}

.inline {
    display: inline;
}

.utama {
    padding: 28px 0 56px;
}

.footer {
    border-top: 1px solid var(--garis);
    padding: 22px 0;
    color: var(--teks-lembut);
    font-size: 0.86rem;
}

/* Hero */
.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(240px, 0.7fr);
    gap: 26px;
    align-items: stretch;
    padding: 34px;
    margin: 12px 0 30px;
    border: 1px solid var(--garis);
    border-radius: calc(var(--radius) + 6px);
    background:
        linear-gradient(135deg, color-mix(in srgb, var(--kartu) 92%, transparent), color-mix(in srgb, var(--utama-lembut) 55%, var(--kartu))),
        var(--kartu);
    box-shadow: var(--bayangan);
    overflow: hidden;
    position: relative;
}

.hero::after {
    content: "";
    position: absolute;
    width: 320px;
    height: 320px;
    right: -120px;
    top: -140px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(45, 212, 191, 0.22), transparent 70%);
    pointer-events: none;
}

.hero-label {
    margin: 0 0 10px;
    color: var(--utama);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.hero h1 {
    font-size: clamp(2rem, 4.4vw, 3.2rem);
    max-width: 720px;
}

.hero h1 span {
    color: var(--utama);
}

.hero-teks {
    max-width: 640px;
    color: var(--teks-lembut);
    font-size: 1.02rem;
}

.hero-aksi {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.hero-panel {
    align-self: center;
    padding: 22px;
    border: 1px solid var(--garis);
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--kartu) 86%, transparent);
    box-shadow: var(--bayangan-kecil);
    text-align: center;
}

.hero-angka {
    font-size: 4.4rem;
    font-weight: 800;
    line-height: 1;
    color: var(--utama);
}

.hero-panel p {
    margin: 6px 0;
    color: var(--teks-lembut);
    font-weight: 600;
}

.hero-garis {
    display: grid;
    gap: 7px;
    margin: 14px 0;
}

.hero-garis span {
    display: block;
    height: 7px;
    border-radius: 99px;
    background: linear-gradient(90deg, var(--utama), transparent);
}

.hero-garis span:nth-child(2) {
    width: 72%;
    opacity: 0.75;
}

.hero-garis span:nth-child(3) {
    width: 46%;
    opacity: 0.5;
}

.hero-kecil {
    font-size: 0.76rem;
    font-weight: 500 !important;
}

/* Sections */
.bagian {
    margin: 30px 0;
}

.bagian-kepala {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 14px;
}

.bagian-teks {
    margin: 0;
    color: var(--teks-lembut);
}

.judul-halaman {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 18px;
    margin: 8px 0 22px;
}

.remah {
    margin: 0 0 6px;
    color: var(--teks-lembut);
    font-size: 0.86rem;
    font-weight: 600;
}

.remah a {
    color: var(--teks-lembut);
}

.aksi-baris {
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    align-items: center;
}

.aksi-bawah {
    margin-top: 18px;
}

/* Cards */
.kartu {
    background: var(--kartu);
    border: 1px solid var(--garis);
    border-radius: var(--radius);
    box-shadow: var(--bayangan-kecil);
}

.kartu-sempit {
    max-width: 720px;
    padding: 24px;
}

.kartu-form {
    padding: 20px;
    margin-top: 16px;
}

.kartu-form h3 {
    margin-bottom: 12px;
}

.grid-kartu {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.kartu-studi {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 20px;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.kartu-studi:hover {
    transform: translateY(-2px);
    box-shadow: var(--bayangan);
}

.kartu-atas {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.tanggal {
    color: var(--teks-lembut);
    font-size: 0.82rem;
}

.kartu-teks {
    margin: 0;
    color: var(--teks-lembut);
    font-size: 0.93rem;
    flex: 1;
}

.statistik-baris {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    color: var(--teks-lembut);
    font-size: 0.84rem;
}

.statistik-baris strong {
    color: var(--teks);
}

.grid-statistik {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin: 18px 0;
}

.statistik {
    padding: 16px 18px;
}

.statistik span {
    display: block;
    color: var(--teks-lembut);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.statistik strong {
    display: block;
    margin-top: 4px;
    font-size: 1.65rem;
    letter-spacing: -0.03em;
}

.teks-peringatan {
    color: var(--peringatan);
}

/* Buttons */
.tombol {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    min-height: 40px;
    padding: 9px 15px;
    border: 1px solid transparent;
    border-radius: var(--radius-kecil);
    background: var(--kartu-2);
    color: var(--teks);
    font: inherit;
    font-weight: 700;
    font-size: 0.9rem;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.14s ease, background 0.14s ease, border-color 0.14s ease, box-shadow 0.14s ease;
}

.tombol:hover {
    transform: translateY(-1px);
    text-decoration: none;
}

.tombol:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--utama) 35%, transparent);
    outline-offset: 2px;
}

.tombol-utama {
    background: linear-gradient(135deg, var(--utama), var(--utama-gelap));
    color: #ffffff;
    box-shadow: 0 8px 18px rgba(15, 118, 110, 0.22);
}

.tombol-sekunder {
    background: var(--utama-lembut);
    color: var(--utama-gelap);
    border-color: color-mix(in srgb, var(--utama) 30%, transparent);
}

.tombol-bahaya {
    background: var(--bahaya-lembut);
    color: var(--bahaya);
    border-color: color-mix(in srgb, var(--bahaya) 25%, transparent);
}

.tombol-kosong {
    background: transparent;
    border-color: var(--garis);
    color: var(--teks-lembut);
}

.tombol-kecil {
    min-height: 32px;
    padding: 5px 10px;
    border-radius: 8px;
    font-size: 0.8rem;
}

.tombol-penuh {
    width: 100%;
}

.tombol:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Badges */
.lencana {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 8px;
    border-radius: 99px;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.lencana-netral {
    background: var(--latar-2);
    color: var(--teks-lembut);
}

.lencana-benefit {
    background: var(--sukses-lembut);
    color: var(--sukses);
}

.lencana-cost {
    background: var(--bahaya-lembut);
    color: var(--bahaya);
}

/* Forms */
label {
    display: grid;
    gap: 6px;
    font-size: 0.86rem;
    font-weight: 700;
    color: var(--teks-lembut);
}

label span small {
    font-weight: 500;
}

input, select, textarea {
    width: 100%;
    min-height: 40px;
    padding: 9px 11px;
    border: 1px solid var(--garis);
    border-radius: var(--radius-kecil);
    background: var(--kartu);
    color: var(--teks);
    font: inherit;
    font-size: 0.92rem;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--utama);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--utama) 18%, transparent);
}

input[type="number"] {
    font-variant-numeric: tabular-nums;
}

textarea {
    resize: vertical;
}

.form-vertikal {
    display: grid;
    gap: 15px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 13px;
    align-items: end;
}

.form-grid .form-aksi {
    align-self: end;
}

.form-ubah {
    display: grid;
    gap: 9px;
    min-width: 230px;
    margin-top: 10px;
    padding: 12px;
    border: 1px solid var(--garis);
    border-radius: var(--radius-kecil);
    background: var(--kartu-2);
}

.bantuan {
    color: var(--teks-lembut);
    font-size: 0.82rem;
}

.input-galat {
    border-color: var(--bahaya) !important;
    background: var(--bahaya-lembut) !important;
}

/* Tables */
.tabel-gulir {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--garis);
    border-radius: var(--radius);
    background: var(--kartu);
    box-shadow: var(--bayangan-kecil);
}

.tabel-gulir-besar {
    max-height: 68vh;
    overflow: auto;
}

.tabel {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.9rem;
}

.tabel th, .tabel td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--garis);
    text-align: left;
    vertical-align: middle;
}

.tabel thead th {
    position: sticky;
    top: 0;
    z-index: 2;
    background: var(--kartu-2);
    color: var(--teks-lembut);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    white-space: nowrap;
}

.tabel tbody tr:last-child td,
.tabel tbody tr:last-child th {
    border-bottom: 0;
}

.tabel tbody tr:hover > td,
.tabel tbody tr:hover > th {
    background: color-mix(in srgb, var(--utama-lembut) 22%, transparent);
}

.tabel .angka {
    text-align: right;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.tabel .kolom-aksi {
    white-space: nowrap;
    text-align: right;
}

.tabel-matriks th,
.tabel-matriks td {
    text-align: center;
    min-width: 110px;
}

.tabel-matriks thead th small,
.tabel-matriks tbody th small {
    display: block;
    max-width: 130px;
    margin: 2px auto 0;
    color: var(--teks-lembut);
    font-size: 0.72rem;
    font-weight: 500;
}

.tabel-matriks .lengket {
    position: sticky;
    left: 0;
    z-index: 3;
    background: var(--kartu-2);
    text-align: left;
    min-width: 170px;
}

.tabel-matriks thead .lengket {
    z-index: 4;
}

.tabel-matriks input {
    min-width: 92px;
    text-align: right;
}

.kode-kriteria,
.kode-alternatif {
    display: block;
    color: var(--teks);
    font-weight: 800;
}

.tabel-ringkas {
    margin-top: 12px;
}

.baris-teratas > td,
.baris-teratas > th {
    background: color-mix(in srgb, var(--utama-lembut) 55%, transparent) !important;
    font-weight: 700;
}

.daftar-pesan {
    margin: 8px 0 0;
    padding-left: 20px;
}

/* Notifications */
.notif {
    padding: 13px 16px;
    margin: 0 0 16px;
    border: 1px solid transparent;
    border-radius: var(--radius-kecil);
    font-size: 0.9rem;
}

.notif-sukses {
    background: var(--sukses-lembut);
    border-color: color-mix(in srgb, var(--sukses) 25%, transparent);
    color: var(--sukses);
}

.notif-galat {
    background: var(--bahaya-lembut);
    border-color: color-mix(in srgb, var(--bahaya) 25%, transparent);
    color: var(--bahaya);
}

.notif-peringatan {
    background: var(--peringatan-lembut);
    border-color: color-mix(in srgb, var(--peringatan) 25%, transparent);
    color: var(--peringatan);
}

/* Details */
details.ubah summary {
    cursor: pointer;
    list-style: none;
}

details.ubah summary::-webkit-details-marker {
    display: none;
}

details.ubah summary::after {
    content: " ▾";
    font-size: 0.7em;
}

details.ubah[open] summary::after {
    content: " ▴";
}

/* Ranking */
.daftar-peringkat {
    display: grid;
    gap: 11px;
}

.peringkat {
    display: flex;
    align-items: stretch;
    gap: 14px;
    padding: 14px;
    border: 1px solid var(--garis);
    border-radius: var(--radius);
    background: var(--kartu);
    box-shadow: var(--bayangan-kecil);
}

.peringkat-teratas {
    border-color: color-mix(in srgb, var(--utama) 45%, var(--garis));
    background: linear-gradient(135deg, color-mix(in srgb, var(--utama-lembut) 55%, var(--kartu)), var(--kartu));
}

.peringkat-nomor {
    display: grid;
    place-items: center;
    width: 42px;
    min-width: 42px;
    border-radius: 12px;
    background: var(--latar-2);
    color: var(--teks-lembut);
    font-size: 1.05rem;
    font-weight: 800;
}

.peringkat-teratas .peringkat-nomor {
    background: linear-gradient(135deg, var(--utama), var(--utama-gelap));
    color: #ffffff;
}

.peringkat-isi {
    flex: 1;
    min-width: 0;
}

.peringkat-kepala {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
}

.peringkat-kepala strong {
    display: block;
    font-size: 1rem;
}

.peringkat-kepala small {
    font-size: 0.78rem;
}

.peringkat-nilai {
    font-size: 1.05rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    color: var(--utama-gelap);
}

.bar {
    height: 9px;
    overflow: hidden;
    border-radius: 99px;
    background: var(--latar-2);
}

.bar span {
    display: block;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--utama), #5eead4);
}

/* Steps */
.langkah-daftar {
    display: grid;
    gap: 12px;
    margin-top: 26px;
}

.langkah {
    border: 1px solid var(--garis);
    border-radius: var(--radius);
    background: var(--kartu);
    box-shadow: var(--bayangan-kecil);
    overflow: hidden;
}

.langkah > summary {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 18px;
    cursor: pointer;
    font-weight: 800;
    list-style: none;
    background: var(--kartu-2);
}

.langkah > summary::-webkit-details-marker {
    display: none;
}

.langkah > summary::after {
    content: "＋";
    margin-left: auto;
    color: var(--teks-lembut);
    font-size: 1.1rem;
}

.langkah[open] > summary::after {
    content: "−";
}

.langkah-nomor {
    display: grid;
    place-items: center;
    width: 28px;
    height: 28px;
    border-radius: 9px;
    background: var(--utama-lembut);
    color: var(--utama-gelap);
    font-size: 0.82rem;
    font-weight: 800;
}

.langkah-isi {
    padding: 16px 18px 20px;
}

/* Empty */
.kosong {
    padding: 38px 24px;
    border: 1px dashed color-mix(in srgb, var(--garis) 75%, var(--teks-lembut));
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--kartu) 70%, transparent);
    text-align: center;
}

.kosong-kecil {
    padding: 22px;
}

.kosong-besar {
    margin-top: 40px;
    padding: 60px 24px;
}

.kosong h3 {
    margin-bottom: 6px;
}

.kosong p {
    color: var(--teks-lembut);
}

.kode-besar {
    margin: 0;
    font-size: 4rem;
    font-weight: 800;
    line-height: 1;
    color: var(--utama);
}

/* Login */
.halaman-masuk {
    display: grid;
    place-items: center;
    min-height: 62vh;
}

.kartu-masuk {
    width: min(420px, 100%);
    padding: 26px;
}

.masuk-merek {
    margin-bottom: 20px;
    font-size: 1.05rem;
}

/* Print */
@media print {
    .topbar, .footer, .aksi-baris, .notif, .langkah > summary::after {
        display: none !important;
    }

    body {
        background: #ffffff;
        color: #000000;
        font-size: 11px;
    }

    .utama {
        padding: 0;
    }

    .kartu, .langkah, .tabel-gulir, .peringkat {
        box-shadow: none;
        border-color: #cccccc;
        break-inside: avoid;
    }

    .langkah {
        break-inside: avoid;
    }

    .tabel-gulir {
        overflow: visible;
    }

    .tabel thead th {
        position: static;
        background: #f2f2f2;
        color: #000000;
    }

    .bar span {
        background: #333333;
    }

    a {
        color: #000000;
        text-decoration: none;
    }
}

/* Responsive */
@media (max-width: 900px) {
    .hero {
        grid-template-columns: 1fr;
        padding: 26px;
    }

    .hero-panel {
        display: none;
    }

    .grid-statistik {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .form-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .judul-halaman {
        align-items: start;
        flex-direction: column;
    }
}

@media (max-width: 620px) {
    .wadah {
        width: min(100% - 22px, 1180px);
    }

    .topbar-isi {
        min-height: 60px;
    }

    .nav {
        gap: 12px;
        font-size: 0.86rem;
    }

    .grid-statistik,
    .form-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        padding: 22px;
    }

    .hero h1 {
        font-size: 1.85rem;
    }

    .kartu-sempit,
    .kartu-form,
    .kartu-masuk {
        padding: 18px;
    }

    .tabel th, .tabel td {
        padding: 8px 9px;
    }

    .peringkat-kepala {
        align-items: start;
        flex-direction: column;
        gap: 4px;
    }
}