/* =====================================================================
   global.css — Token desain "Tinta & Sutra" + reset + komponen bersama.
   Dimuat di SEMUA halaman. CSS khusus halaman ada di file terpisah.
   ===================================================================== */

:root {
    /* — Palet: Tinta & Sutra — */
    --ink-900: #0c0a09;      /* latar tinta terdalam */
    --ink-800: #14100e;
    --ink-700: #201a17;
    --ink-600: #2c2421;
    --paper:   #ede4d3;      /* kertas beras (section terang) */
    --paper-dim: #cabfa8;
    --cinnabar: #c1352b;     /* 朱砂 merah stempel */
    --cinnabar-bright: #e0463a;
    --jade:    #5c8a7b;      /* 翡翠 giok */
    --gold:    #c9a24b;      /* 鎏金 emas */
    --gold-soft: #e3c878;

    /* — Teks — */
    --text-on-ink: #ece3d4;
    --text-on-ink-dim: rgba(236, 227, 212, 0.62);
    --text-on-paper: #1c1714;
    --text-on-paper-dim: rgba(28, 23, 20, 0.6);

    /* — Tipografi — */
    --font-display: 'Cormorant Garamond', Georgia, serif;
    --font-body: 'Plus Jakarta Sans', system-ui, sans-serif;
    --font-cn: 'Ma Shan Zheng', serif;

    /* — Skala & ritme — */
    --step-xs: clamp(.75rem, .72rem + .15vw, .85rem);
    --step-sm: clamp(.9rem, .86rem + .2vw, 1rem);
    --step-md: clamp(1.05rem, 1rem + .3vw, 1.2rem);
    --step-lg: clamp(1.4rem, 1.2rem + 1vw, 2rem);
    --step-xl: clamp(2.2rem, 1.6rem + 3vw, 4rem);
    --step-2xl: clamp(3rem, 1.8rem + 6vw, 7rem);

    --shell: min(1180px, 90vw);
    --radius: 14px;
    --ease: cubic-bezier(.22, .61, .36, 1);
    --ease-out: cubic-bezier(.16, 1, .3, 1);
}

/* — Reset ringan — */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

body {
    font-family: var(--font-body);
    font-size: var(--step-md);
    line-height: 1.7;
    color: var(--text-on-ink);
    background: var(--ink-900);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img, picture, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 500; line-height: 1.05; letter-spacing: .01em; }

::selection { background: var(--cinnabar); color: var(--paper); }

/* — Layout shell — */
.shell { width: var(--shell); margin-inline: auto; }

/* — Eyebrow / label kecil dengan stempel — */
.eyebrow {
    font-family: var(--font-body);
    font-size: var(--step-xs);
    text-transform: uppercase;
    letter-spacing: .32em;
    color: var(--gold);
    display: inline-flex;
    align-items: center;
    gap: .8em;
}
.eyebrow::before {
    content: "";
    width: 2.4em; height: 1px;
    background: linear-gradient(90deg, transparent, var(--gold));
}

/* — Tombol — */
.btn {
    --bg: var(--cinnabar);
    display: inline-flex; align-items: center; gap: .6em;
    font-family: var(--font-body); font-weight: 600; font-size: var(--step-sm);
    letter-spacing: .02em;
    padding: .85em 1.7em;
    color: var(--paper);
    background: var(--bg);
    border: 0; border-radius: 100px;
    cursor: pointer;
    position: relative; overflow: hidden;
    transition: transform .4s var(--ease-out), box-shadow .4s var(--ease);
    box-shadow: 0 8px 30px -10px color-mix(in srgb, var(--bg) 70%, transparent);
}
.btn:hover { transform: translateY(-3px); box-shadow: 0 16px 40px -12px color-mix(in srgb, var(--bg) 80%, transparent); }
.btn--ghost {
    background: transparent; color: var(--text-on-ink);
    border: 1px solid color-mix(in srgb, var(--text-on-ink) 30%, transparent);
    box-shadow: none;
}
.btn--ghost:hover { border-color: var(--gold); color: var(--gold); }

/* =====================================================================
   Tirai pembuka (page-load cinematic)
   ===================================================================== */
.curtain {
    position: fixed; inset: 0; z-index: 9999;
    background: var(--ink-900);
    display: grid; place-items: center;
    transition: opacity .8s var(--ease), visibility .8s;
}
.curtain__seal {
    font-family: var(--font-cn);
    font-size: clamp(4rem, 18vw, 11rem);
    color: var(--cinnabar);
    opacity: 0;
    animation: sealIn 1.1s var(--ease-out) forwards;
}
.curtain.is-done { opacity: 0; visibility: hidden; }
@keyframes sealIn {
    0%   { opacity: 0; transform: scale(.7) rotate(-6deg); filter: blur(8px); }
    60%  { opacity: 1; transform: scale(1.05) rotate(0); filter: blur(0); }
    100% { opacity: 1; transform: scale(1); }
}

/* =====================================================================
   Navbar
   ===================================================================== */
.nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: 1.4rem var(--shell-pad, 5vw);
    transition: background .5s var(--ease), padding .5s var(--ease), backdrop-filter .5s;
}
.nav.is-scrolled {
    background: color-mix(in srgb, var(--ink-900) 82%, transparent);
    backdrop-filter: blur(14px);
    padding-block: .9rem;
    border-bottom: 1px solid color-mix(in srgb, var(--gold) 18%, transparent);
}
.nav__brand { display: flex; align-items: center; gap: .6rem; }
.nav__brand-mark { font-family: var(--font-cn); font-size: 1.8rem; color: var(--cinnabar); line-height: 1; }
.nav__brand-text { font-family: var(--font-display); font-size: 1.25rem; letter-spacing: .12em; text-transform: uppercase; }
.nav__links { display: flex; gap: 2.2rem; }
.nav__links a {
    font-size: var(--step-sm); letter-spacing: .04em;
    color: var(--text-on-ink-dim); position: relative; padding-block: .3em;
    transition: color .3s var(--ease);
}
.nav__links a::after {
    content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
    background: var(--gold); transition: width .35s var(--ease);
}
.nav__links a:hover { color: var(--text-on-ink); }
.nav__links a:hover::after { width: 100%; }

.nav__toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav__toggle span { width: 26px; height: 2px; background: var(--text-on-ink); transition: .35s var(--ease); }
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 820px) {
    .nav__toggle { display: flex; }
    .nav__links {
        position: fixed; inset: 0 0 0 auto; width: min(78vw, 320px);
        flex-direction: column; justify-content: center; gap: 1.8rem;
        padding: 2rem 2.4rem;
        background: var(--ink-800);
        border-left: 1px solid color-mix(in srgb, var(--gold) 20%, transparent);
        transform: translateX(100%); transition: transform .5s var(--ease-out);
    }
    .nav__links.is-open { transform: translateX(0); }
    .nav__links a { font-size: 1.3rem; font-family: var(--font-display); }
}

/* =====================================================================
   Scroll reveal (dipakai semua halaman via global.js)
   ===================================================================== */
[data-reveal] {
    opacity: 0; transform: translateY(28px);
    transition: opacity .9s var(--ease-out), transform .9s var(--ease-out);
}
[data-reveal].is-in { opacity: 1; transform: none; }
[data-reveal-delay="1"] { transition-delay: .1s; }
[data-reveal-delay="2"] { transition-delay: .2s; }
[data-reveal-delay="3"] { transition-delay: .3s; }

/* =====================================================================
   Footer
   ===================================================================== */
.foot {
    background: var(--ink-800);
    border-top: 1px solid color-mix(in srgb, var(--gold) 16%, transparent);
    padding: 4rem var(--shell-pad, 5vw) 2rem;
    margin-top: 6rem;
}
.foot__inner { display: flex; flex-wrap: wrap; gap: 3rem; justify-content: space-between; max-width: 1180px; margin-inline: auto; }
.foot__mark { font-family: var(--font-cn); font-size: 2.6rem; color: var(--cinnabar); }
.foot__tag { font-family: var(--font-display); font-style: italic; font-size: var(--step-lg); color: var(--text-on-ink-dim); max-width: 16ch; margin-top: .4rem; }
.foot__cols { display: flex; gap: 3rem; flex-wrap: wrap; }
.foot__col h4 { font-family: var(--font-body); font-size: var(--step-xs); text-transform: uppercase; letter-spacing: .2em; color: var(--gold); margin-bottom: 1rem; }
.foot__col a { display: block; color: var(--text-on-ink-dim); padding-block: .35em; transition: color .3s; }
.foot__col a:hover { color: var(--text-on-ink); }
.foot__legal { text-align: center; margin-top: 3rem; font-size: var(--step-xs); color: var(--text-on-ink-dim); letter-spacing: .04em; }

/* — Aksesibilitas: fokus terlihat — */
:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 4px; }