/*
 * Buku Kuliah SALUT: dasar bersama portal mahasiswa dan situs.
 * Sampul bookcloth navy dengan foil emas, halaman kertas berpengaman, baris cetak mono,
 * cap karet untuk status. Huruf di-host sendiri (assets/vendor/fonts), tanpa CDN.
 */

@font-face { font-family: 'Inter Tight'; src: url('../../vendor/fonts/inter-tight/inter-tight-latin-400-normal.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Inter Tight'; src: url('../../vendor/fonts/inter-tight/inter-tight-latin-500-normal.woff2') format('woff2'); font-weight: 500; font-display: swap; }
@font-face { font-family: 'Inter Tight'; src: url('../../vendor/fonts/inter-tight/inter-tight-latin-600-normal.woff2') format('woff2'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'Inter Tight'; src: url('../../vendor/fonts/inter-tight/inter-tight-latin-700-normal.woff2') format('woff2'); font-weight: 700; font-display: swap; }
@font-face { font-family: 'Courier Prime'; src: url('../../vendor/fonts/courier-prime/courier-prime-latin-400-normal.woff2') format('woff2'); font-weight: 400; font-display: swap; }
@font-face { font-family: 'Courier Prime'; src: url('../../vendor/fonts/courier-prime/courier-prime-latin-700-normal.woff2') format('woff2'); font-weight: 700; font-display: swap; }
@font-face { font-family: 'Doto'; src: url('../../vendor/fonts/doto/doto-latin-800-normal.woff2') format('woff2'); font-weight: 800; font-display: swap; }
@font-face { font-family: 'Gilroy'; src: url('../../fonts/gilroy/Gilroy-SemiBold.woff2') format('woff2'); font-weight: 600; font-display: swap; }
@font-face { font-family: 'Gilroy'; src: url('../../fonts/gilroy/Gilroy-Bold.woff2') format('woff2'); font-weight: 700; font-display: swap; }

:root {
    /* Sampul */
    --sampul: #1E3A8A;             /* navy UT */
    --sampul-tua: #13265A;         /* bayangan sampul */
    --sampul-muda: #2C4BA3;
    --foil: #E8B54A;
    --foil-terang: #F7DA93;
    --foil-gelap: #9C6E17;
    --di-sampul: #DCE4F5;          /* teks sekunder di atas navy */
    /* Halaman */
    --kertas: #F3F6EF;
    --kertas-lipat: #E7ECE3;
    --kertas-putih: #FBFCF8;
    --tinta: #18202F;
    --tinta-2: #444E61;
    --tinta-3: #596274;
    --garis: #C3CCC0;
    --garis-titik: #A9B4A6;
    /* Cap */
    --cap-lunas: #1C7445;
    --cap-tunggu: #3741B0;
    --cap-tempo: #B1261B;
    --cap-arsip: #6A5418;
    --wa: #12784A;
    /* Huruf */
    --f-ui: 'Inter Tight', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    --f-cetak: 'Courier Prime', 'Courier New', ui-monospace, monospace;   /* pita printer: baris buku */
    --f-matriks: 'Doto', 'Courier Prime', ui-monospace, monospace;          /* dot-matrix: hanya angka besar */
    --f-timbul: 'Gilroy', 'Inter Tight', system-ui, sans-serif;
    /* Ritme */
    --r-1: 4px; --r-2: 8px; --r-3: 12px; --r-4: 16px; --r-5: 24px; --r-6: 32px; --r-7: 48px; --r-8: 72px;
    --sudut: 6px;
    --bayang-halaman: 0 1px 0 rgba(255,255,255,.7) inset, 0 18px 40px -22px rgba(12, 26, 64, .45), 0 2px 6px -2px rgba(12, 26, 64, .18);
    --ease-keluar: cubic-bezier(.16, 1, .3, 1);
}

/* Permukaan yang tidak kita gambar tetap ikut dunia ini. */
::selection { background: var(--foil-terang); color: var(--sampul-tua); }
html { -webkit-tap-highlight-color: transparent; scrollbar-color: var(--garis-titik) transparent; }
:focus-visible { outline: 2px solid var(--foil); outline-offset: 2px; border-radius: 3px; }
.kertas :focus-visible, .halaman :focus-visible { outline-color: var(--sampul-muda); }
a { text-underline-offset: .2em; text-decoration-thickness: 1px; }
.cetak, .angka { font-family: var(--f-cetak); font-variant-numeric: tabular-nums; letter-spacing: -.01em; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
[x-cloak] { display: none !important; }

/* ---------------------------------------------------------------- Sampul */
.bookcloth {
    background-color: var(--sampul);
    background-image:
        radial-gradient(140% 120% at 30% 10%, transparent 55%, rgba(8, 18, 48, .45) 100%),
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='k'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85 .55' numOctaves='3' seed='4'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .07 0'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23k)'/%3E%3C/svg%3E");
    color: var(--di-sampul);
}
.foil {
    color: var(--foil);
}
.timbul { font-family: var(--f-timbul); font-weight: 700; letter-spacing: .02em; }

/* ---------------------------------------------------------------- Halaman kertas */
.kertas {
    background-color: var(--kertas);
    background-image: url('../../img/buku/guilloche.svg');
    background-size: 240px 96px;
    color: var(--tinta);
}
.kertas-polos { background: var(--kertas-putih); color: var(--tinta); }

/* Kepala cetak di tiap halaman: nama lembaga, bagian, nomor halaman. */
.kepala-cetak {
    display: flex; justify-content: space-between; gap: var(--r-3); flex-wrap: wrap;
    font-family: var(--f-cetak); font-size: 11px; letter-spacing: .08em; text-transform: uppercase;
    color: var(--tinta-3);
    padding-bottom: var(--r-2); border-bottom: 1px solid var(--garis);
}

/* ---------------------------------------------------------------- Cap karet */
.cap {
    --cap: var(--cap-tunggu);
    display: inline-flex; align-items: center; gap: .45em;
    padding: .32em .7em .28em;
    font-family: var(--f-cetak); font-weight: 700; font-size: 12px; letter-spacing: .14em; text-transform: uppercase;
    color: var(--cap);
    border: 2px solid var(--cap);
    border-radius: 5px;
    box-shadow: inset 0 0 0 2px var(--kertas, #fff), inset 0 0 0 3px var(--cap);
    transform: rotate(var(--miring, -3deg));
    opacity: var(--pekat, .92);
    /* tinta yang tidak rata */
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='60'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' seed='7'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -.85 1.3'/%3E%3C/filter%3E%3Crect width='160' height='60' filter='url(%23n)'/%3E%3C/svg%3E");
            mask-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='60'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' seed='7'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 -.85 1.3'/%3E%3C/filter%3E%3Crect width='160' height='60' filter='url(%23n)'/%3E%3C/svg%3E");
    white-space: nowrap;
}
.cap--lunas { --cap: var(--cap-lunas); }
.cap--tempo { --cap: var(--cap-tempo); --miring: 2deg; }
:nth-child(3n+1) > .cap, tr:nth-child(3n+1) .cap { --miring: -2deg; --pekat: .9; }
:nth-child(3n+2) > .cap, tr:nth-child(3n+2) .cap { --miring: -4.5deg; --pekat: .95; }
:nth-child(3n) > .cap, tr:nth-child(3n) .cap { --miring: 1.5deg; --pekat: .86; }
.cap--arsip { --cap: var(--cap-arsip); }
.cap--besar { font-size: 15px; padding: .42em .9em .36em; }
.cap .bi { font-size: 1.05em; }

/* ---------------------------------------------------------------- Baris mutasi (ledger) */
.mutasi { width: 100%; border-collapse: collapse; font-size: 14px; }
.mutasi caption { text-align: left; caption-side: top; font: 600 14.5px/1.3 var(--f-ui); color: var(--tinta); padding-bottom: 6px; }
.mutasi th {
    font-family: var(--f-cetak); font-size: 11px; font-weight: 500; letter-spacing: .08em; text-transform: uppercase;
    color: var(--tinta-3); text-align: left; padding: var(--r-2) var(--r-2); border-bottom: 1px solid var(--tinta-2);
    white-space: nowrap;
}
.mutasi td {
    padding: var(--r-3) var(--r-2); vertical-align: top;
    border-bottom: 1px dotted var(--garis-titik);
}
.mutasi .no { width: 2.6em; font-family: var(--f-cetak); color: var(--tinta-3); font-size: 12px; }
.mutasi .uang { text-align: right; white-space: nowrap; font-family: var(--f-cetak); font-size: 15px; font-variant-numeric: tabular-nums; }
.mutasi .tgl { white-space: nowrap; font-family: var(--f-cetak); font-size: 14px; color: var(--tinta-2); }
.mutasi th.uang, .mutasi th.tgl { font-size: 11px; color: var(--tinta-3); }
.mutasi .ket b, .mutasi .ket strong { font-weight: 600; }
.mutasi .ket small { display: block; color: var(--tinta-3); font-size: 12.5px; margin-top: 2px; }
.mutasi tfoot td { border-bottom: 0; border-top: 1px solid var(--tinta-2); font-weight: 600; }

/* Daftar bertitik: "Keterangan ........ nilai" seperti formulir cetak. */
.titik { display: flex; align-items: baseline; gap: var(--r-2); padding: 7px 0; }
.titik > :first-child { flex: 0 1 auto; color: var(--tinta-2); }
.titik::after { content: none; }
.titik .isi-titik { flex: 1 1 auto; border-bottom: 1px dotted var(--garis-titik); transform: translateY(-4px); min-width: 16px; }
.titik > :last-child { flex: 0 0 auto; font-family: var(--f-cetak); font-variant-numeric: tabular-nums; text-align: right; }

/* ---------------------------------------------------------------- Tombol */
.tombol {
    --t-bg: var(--sampul); --t-fg: #fff; --t-garis: var(--sampul);
    display: inline-flex; align-items: center; justify-content: center; gap: .55em;
    min-height: 46px; padding: 0 1.15em;
    font: 600 15px/1 var(--f-ui); letter-spacing: .005em;
    color: var(--t-fg); background: var(--t-bg); border: 1px solid var(--t-garis); border-radius: var(--sudut);
    text-decoration: none; cursor: pointer;
    box-shadow: 0 1px 0 rgba(255,255,255,.18) inset, 0 6px 14px -8px rgba(12,26,64,.6);
    transition: transform .18s var(--ease-keluar), box-shadow .18s var(--ease-keluar), background-color .18s;
}
.tombol:hover { background: var(--sampul-muda); }
.tombol:active { transform: translateY(1px); box-shadow: 0 1px 0 rgba(255,255,255,.12) inset, 0 2px 6px -4px rgba(12,26,64,.6); }
.tombol:disabled, .tombol[aria-disabled="true"] { opacity: .55; cursor: not-allowed; transform: none; }
.tombol--emas { --t-bg: var(--foil); --t-fg: var(--sampul-tua); --t-garis: var(--foil-gelap); box-shadow: 0 1px 0 var(--foil-terang) inset, 0 8px 18px -10px rgba(0,0,0,.6); }
.tombol--emas:hover { background: #F0C463; }
.tombol--garis { --t-bg: transparent; --t-fg: var(--sampul); --t-garis: var(--sampul); box-shadow: none; }
.tombol--garis:hover { background: rgba(19,38,90,.06); }
.tombol--garis-terang { --t-bg: transparent; --t-fg: #fff; --t-garis: rgba(232,181,74,.65); box-shadow: none; }
.tombol--garis-terang:hover { background: rgba(232,181,74,.12); }
.tombol--wa { --t-bg: var(--wa); --t-fg: #fff; --t-garis: var(--wa); }
.tombol--wa:hover { background: #0E6640; }
.tombol--penuh { width: 100%; }
.tombol--besar { min-height: 54px; font-size: 16px; padding: 0 1.4em; }
.tautan { color: var(--sampul-muda); font-weight: 600; text-decoration: underline; text-decoration-color: rgba(30,58,138,.35); }
.tautan:hover { text-decoration-color: currentColor; }

/* ---------------------------------------------------------------- Isian formulir */
.isian { display: block; }
.isian > span, .isian label, .label { display: block; font: 600 13px/1.3 var(--f-ui); color: var(--tinta-2); margin-bottom: 6px; }
.isian input, .isian select, .isian textarea, .kotak-isian {
    width: 100%; min-height: 48px; padding: 10px 12px;
    font: 500 16px/1.3 var(--f-ui); color: var(--tinta);
    background: var(--kertas-putih); border: 1px solid var(--garis-titik); border-bottom: 2px solid var(--tinta-2); border-radius: 4px 4px 2px 2px;
    transition: border-color .15s, background-color .15s;
}
.isian input::placeholder { color: #7A8293; }
.isian input:focus, .isian select:focus, .isian textarea:focus, .kotak-isian:focus { outline: none; border-color: var(--sampul-muda); border-bottom-color: var(--sampul-muda); background: #fff; box-shadow: 0 0 0 3px rgba(30,58,138,.14); }
.isian .petunjuk { display: block; font-size: 12.5px; color: var(--tinta-3); margin-top: 6px; }
.isian--galat input { border-bottom-color: var(--cap-tempo); }

/* Pilihan berbentuk slip (radio). */
.slip {
    display: flex; align-items: center; gap: var(--r-3); padding: 12px 14px; min-height: 58px;
    background: var(--kertas-putih); border: 1px dashed var(--garis-titik); border-radius: 4px; cursor: pointer;
    transition: border-color .15s, background-color .15s;
}
.slip:hover { border-color: var(--tinta-2); }
.slip:has(input:checked) { border: 1px solid var(--sampul); background: #fff; box-shadow: 0 0 0 1px var(--sampul) inset; }
.slip input[type=radio] { width: 18px; height: 18px; accent-color: var(--sampul); flex: 0 0 auto; }

/* ---------------------------------------------------------------- Catatan (pemberitahuan) */
.catatan { display: flex; gap: var(--r-3); padding: 12px 14px; border-radius: 4px; font-size: 14px; line-height: 1.5; border: 1px solid; }
.catatan > .bi { font-size: 18px; line-height: 1.2; flex: 0 0 auto; }
.catatan--info { background: #E9EEF8; border-color: #B9C6E4; color: #1D2B57; }
.catatan--baik { background: #E5F2EA; border-color: #A9D2B8; color: #154B30; }
.catatan--awas { background: #FBF0D9; border-color: #E5C987; color: #5C3F05; }
.catatan--galat { background: #FBE7E4; border-color: #E9B2AA; color: #7A1C13; }

/* ---------------------------------------------------------------- Gerak */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}