/* ============================================================
   ADLAN — PORTOFOLIO 2026
   stylesheet utama · gaya "catatan lapangan"
   kertas hangat / tinta pekat / oranye sinyal
   ============================================================ */

:root {
  --paper: #f4f1ea;
  --paper-2: #ebe7dc;
  --paper-3: #e3ddcf;
  --ink: #1c1913;
  --ink-70: rgba(28, 25, 19, .7);
  --ink-45: rgba(28, 25, 19, .45);
  --ink-15: rgba(28, 25, 19, .15);
  --ink-08: rgba(28, 25, 19, .08);
  --sig: #e8490f;
  --sig-dark: #c23a08;
  --ok: #1e7a46;

  --serif: "Fraunces", Georgia, serif;
  --sans: "IBM Plex Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;

  --rule: 1.5px solid var(--ink);
  --rule-thick: 2px solid var(--ink);
  --edge: clamp(1.1rem, 4vw, 3.5rem);
  --max: 1180px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  font-size: 1.02rem;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* tekstur kertas halus */
body::before {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 3;
  opacity: .5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.04 0'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

a { color: inherit; }
img { display: block; max-width: 100%; }
button { font-family: inherit; cursor: pointer; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--edge);
  padding-right: var(--edge);
}

/* ---------- progres baca di atas ---------- */
#progress {
  position: fixed; top: 0; left: 0; right: 0;
  height: 3px; background: var(--sig);
  transform-origin: 0 50%;
  transform: scaleX(0);
  z-index: 300;
}

/* ---------- kepala halaman ---------- */
.topbar {
  position: sticky; top: 0; z-index: 200;
  background: var(--paper);
  border-bottom: var(--rule-thick);
}
.topbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; min-height: 62px;
}
.mark {
  display: flex; align-items: baseline; gap: .6rem;
  text-decoration: none;
}
.mark strong {
  font-family: var(--serif); font-style: italic; font-weight: 600;
  font-size: 1.35rem; letter-spacing: -.01em; white-space: nowrap;
}
.mark span {
  font-family: var(--mono); font-size: .62rem; letter-spacing: .18em;
  text-transform: uppercase; color: var(--ink-45);
}
.nav { display: flex; align-items: center; gap: clamp(.55rem, 1.6vw, 1.5rem); }
.nav a {
  font-family: var(--mono); font-size: .74rem; letter-spacing: .08em;
  text-transform: uppercase; text-decoration: none;
  color: var(--ink-70); padding: .3rem 0;
  border-bottom: 2px solid transparent;
  transition: color .2s, border-color .2s;
  white-space: nowrap;
}
.nav a i {
  font-style: normal; color: var(--ink-45);
  font-size: .62rem; margin-right: .25em;
  transition: color .2s;
}
.nav a:hover { color: var(--ink); }
.nav a.on {
  color: var(--ink); border-color: var(--sig); font-weight: 500;
}
.nav a.on i { color: var(--sig); }

.clock {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .06em;
  color: var(--ink-45); white-space: nowrap;
  display: flex; align-items: center; gap: .45rem;
}
.clock b { color: var(--ink); font-weight: 500; }
.dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--ok); display: inline-block;
  animation: blink 2.2s infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: .25; } }

.burger {
  display: none;
  background: none; border: var(--rule);
  width: 42px; height: 42px;
  align-items: center; justify-content: center;
  flex-direction: column; gap: 5px;
}
.burger span {
  width: 18px; height: 2px; background: var(--ink);
  transition: transform .25s, opacity .25s;
}
.burger.x span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.x span:nth-child(2) { opacity: 0; }
.burger.x span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* navigasi desktop disembunyikan di layar kecil */
@media (max-width: 1020px) {
  .nav { display: none; }
  .burger { display: flex; }
}
@media (max-width: 700px) {
  .clock { display: none; }
}

/* menu layar penuh di ponsel */
.mnav {
  position: fixed; inset: 0; z-index: 150;
  background: var(--paper);
  display: flex; flex-direction: column;
  justify-content: center; padding: var(--edge);
  opacity: 0; visibility: hidden;
  transition: opacity .3s, visibility .3s;
}
.mnav.open { opacity: 1; visibility: visible; }
.mnav a {
  font-family: var(--serif); font-weight: 500;
  font-size: clamp(2rem, 9vw, 3.2rem);
  text-decoration: none; padding: .35rem 0;
  border-bottom: 1px solid var(--ink-15);
  display: flex; align-items: baseline; gap: 1rem;
  transform: translateY(14px); opacity: 0;
  transition: transform .4s cubic-bezier(.2,.7,.2,1), opacity .4s;
}
.mnav.open a { transform: none; opacity: 1; }
.mnav a i {
  font-family: var(--mono); font-style: normal;
  font-size: .8rem; color: var(--sig);
}
.mnav a:hover { font-style: italic; color: var(--sig); }

/* ---------- label & tipografi umum ---------- */
.mono { font-family: var(--mono); }

.kicker {
  font-family: var(--mono); font-size: .72rem;
  letter-spacing: .22em; text-transform: uppercase;
  color: var(--ink-70);
  display: flex; align-items: center; gap: .7rem;
}
.kicker::before {
  content: ""; width: 34px; height: 1.5px; background: var(--sig);
}

.sec { padding: clamp(3.4rem, 8vw, 6.5rem) 0; }
.sec-rule { border-top: var(--rule-thick); }

.sec-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 1.5rem; margin-bottom: clamp(2rem, 5vw, 3.4rem);
}
.sec-head .num {
  font-family: var(--mono); font-size: .78rem; color: var(--sig);
  letter-spacing: .2em; margin-bottom: .5rem;
}
.sec-head h2 {
  font-family: var(--serif); font-weight: 550;
  font-size: clamp(2.1rem, 5.4vw, 3.6rem);
  line-height: 1.04; letter-spacing: -.015em;
}
.sec-head h2 em { font-style: italic; color: var(--sig); }
.sec-head .aside {
  font-family: var(--mono); font-size: .72rem;
  color: var(--ink-45); max-width: 240px; text-align: right;
  line-height: 1.7;
}
@media (max-width: 720px) { .sec-head { flex-direction: column; align-items: flex-start; } .sec-head .aside { text-align: left; } }

/* garis yang "digambar" saat discroll */
.draw {
  height: var(--rule-thick); background: var(--ink);
  border: 0; transform: scaleX(0); transform-origin: 0 50%;
}
.draw.is-in { transition: transform 1.1s cubic-bezier(.65,0,.15,1); transform: scaleX(1); }

/* ---------- tombol ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--mono); font-size: .78rem;
  letter-spacing: .1em; text-transform: uppercase;
  text-decoration: none; padding: .85rem 1.4rem;
  border: var(--rule-thick); background: var(--ink); color: var(--paper);
  box-shadow: 4px 4px 0 rgba(28,25,19,.28);
  transition: transform .18s, box-shadow .18s, background .18s, color .18s;
}
.btn:hover { transform: translate(-2px, -2px); box-shadow: 7px 7px 0 rgba(28,25,19,.28); }
.btn:active { transform: translate(1px, 1px); box-shadow: 2px 2px 0 rgba(28,25,19,.28); }
.btn.ghost { background: transparent; color: var(--ink); }
.btn.ghost:hover { background: var(--ink); color: var(--paper); }
.btn.sig { background: var(--sig); border-color: var(--ink); }
.btn .ar { transition: transform .2s; }
.btn:hover .ar { transform: translate(3px, -3px); }

/* ---------- pita berjalan (marquee) ---------- */
.tape-line {
  background: var(--sig); color: var(--paper);
  border-top: var(--rule-thick); border-bottom: var(--rule-thick);
  overflow: hidden; white-space: nowrap;
  padding: .62rem 0;
  transform: rotate(-.6deg) scale(1.02);
  margin: clamp(2rem, 5vw, 3.6rem) 0;
}
.tape-line.rev { background: var(--ink); color: var(--paper); }
.tape-track {
  display: inline-block;
  font-family: var(--mono); font-size: .8rem;
  letter-spacing: .22em; text-transform: uppercase;
  animation: slide 30s linear infinite;
}
.tape-line:hover .tape-track { animation-play-state: paused; }
@keyframes slide { to { transform: translateX(-50%); } }

/* ---------- reveal on scroll ---------- */
[data-rv] { opacity: 0; will-change: transform, opacity; }
[data-rv="up"]    { transform: translateY(34px); }
[data-rv="down"]  { transform: translateY(-26px); }
[data-rv="left"]  { transform: translateX(-36px); }
[data-rv="right"] { transform: translateX(36px); }
[data-rv="scale"] { transform: scale(.92); }
[data-rv].is-in {
  opacity: 1; transform: none;
  transition: opacity .8s ease, transform .9s cubic-bezier(.19,1,.22,1);
  transition-delay: var(--d, 0ms);
}

/* klip gambar: terbuka dari sisi */
[data-clip] {
  clip-path: inset(0 100% 0 0);
  transition: clip-path 1.1s cubic-bezier(.65,0,.15,1);
  transition-delay: var(--d, 0ms);
}
[data-clip="b"] { clip-path: inset(100% 0 0 0); }
[data-clip].is-in { clip-path: inset(0 0 0 0); }

/* teks di balik tirai */
.curtain { display: block; overflow: hidden; }
.curtain > span {
  display: block; transform: translateY(110%);
  transition: transform 1s cubic-bezier(.19,1,.22,1);
  transition-delay: var(--d, 0ms);
}
.curtain.is-in > span { transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-rv], [data-clip], .curtain > span { opacity: 1 !important; transform: none !important; clip-path: none !important; transition: none !important; }
  .tape-track { animation: none; }
  .dot { animation: none; }
}