/* ============================================================
   PORTOFOLIO — LEMBAR GAYA (style.css)
   ------------------------------------------------------------
   DAFTAR ISI:
   [1] Warna & font utama ........ ubah tampilan global di sini
   [2] Dasar & utilitas
   [3] Navigasi
   [4] Hero (nama besar + simulasi PID)
   [5] Marquee (teks berjalan)
   [6] Kerangka section + nomor bab
   [7] Tentang (latar terang)
   [8] Proyek & galeri
   [9] Keahlian / Kegiatan / 
   [10] Kontak & footer
   [11] Animasi masuk (reveal) + responsif
   ============================================================ */

/* ---------- [1] WARNA & FONT UTAMA ---------- */
/* >>> Ganti warna situs cukup dari sini <<< */
:root {
  --ink:    #0a0d12;   /* latar gelap utama */
  --ink2:   #0e1219;   /* latar panel */
  --paper:  #ece7dc;   /* latar terang (section kontras) */
  --text:   #e9e6de;   /* warna teks utama di latar gelap */
  --muted:  #8b93a3;   /* teks redup */
  --amber:  #ffb000;   /* warna aksen (tombol, garis, sorotan) */
  --line:   rgba(233, 230, 222, .10); /* garis rambat di latar gelap */
  --font-display: "Fraunces", serif;      /* huruf judul besar */
  --font-body:    "Instrument Sans", sans-serif; /* huruf isi */
  --font-mono:    "IBM Plex Mono", monospace;    /* huruf label/angka */
}

/* ---------- [2] DASAR & UTILITAS ---------- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--amber); color: var(--ink); }
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
.wrap { max-width: 1180px; margin-inline: auto; padding-inline: clamp(1.25rem, 4vw, 2.5rem); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex; align-items: center; gap: .75rem;
}
.eyebrow::before { content: ""; width: 2.2rem; height: 1px; background: var(--amber); }

/* ---------- [3] NAVIGASI ---------- */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem clamp(1.25rem, 4vw, 2.5rem);
  background: rgba(10, 13, 18, .72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav-logo { font-family: var(--font-display); font-weight: 600; font-size: 1.25rem; letter-spacing: .02em; }
.nav-logo span { color: var(--amber); }
.nav-links { display: flex; gap: clamp(.9rem, 2.4vw, 1.8rem); }
.nav-links a {
  font-family: var(--font-mono); font-size: .78rem; letter-spacing: .08em;
  color: var(--muted); transition: color .25s ease;
}
.nav-links a i { font-style: normal; color: var(--amber); margin-right: .35rem; font-size: .65rem; }
.nav-links a:hover { color: var(--text); }
.nav-cta { border: 1px solid var(--line); border-radius: 999px; padding: .35rem .9rem; }
.nav-cta:hover { border-color: var(--amber); }

/* ---------- [4] HERO ---------- */
.hero {
  min-height: 100vh;
  padding-top: clamp(7rem, 14vh, 9rem);
  position: relative;
  overflow: hidden;
  /* latar kertas biru cetak (grid halus) */
  background-image:
    radial-gradient(60rem 34rem at 78% 12%, rgba(255, 176, 0, .07), transparent 60%),
    linear-gradient(rgba(233,230,222,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(233,230,222,.045) 1px, transparent 1px);
  background-size: auto, 56px 56px, 56px 56px;
}
.hero-grid {
  display: grid; grid-template-columns: 1.05fr .95fr;
  gap: clamp(2rem, 5vw, 4.5rem); align-items: center;
  padding-bottom: 5rem;
}
.display {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(3rem, 8.2vw, 6.8rem);
  line-height: .98;
  letter-spacing: -.01em;
  text-transform: uppercase;
  margin: 1.4rem 0 1.6rem;
}
.display em { color: var(--amber); font-style: normal; }
/* efek "tirai": tiap baris naik dari balik mask saat halaman dibuka */
.mask { display: block; overflow: hidden; }
.mask .line {
  display: block;
  transform: translateY(112%);
  animation: rise 1s cubic-bezier(.2,.75,.2,1) forwards;
}
.mask:nth-child(2) .line { animation-delay: .12s; }
.mask:nth-child(3) .line { animation-delay: .24s; }
@keyframes rise { to { transform: translateY(0); } }

.hero-p { max-width: 30rem; color: var(--muted); font-size: 1.05rem; }
.hero-meta {
  display: flex; gap: 1.6rem; margin-top: 2.4rem; flex-wrap: wrap;
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--muted);
}
.hero-meta li::before { content: "·"; color: var(--amber); margin-right: .6rem; }

/* tombol */
.actions { display: flex; gap: .9rem; flex-wrap: wrap; margin-top: 2rem; }
.btn {
  font-family: var(--font-mono); font-size: .82rem; letter-spacing: .06em;
  padding: .85rem 1.7rem; border-radius: 999px;
  transition: transform .25s ease, background-color .25s ease, color .25s ease, border-color .25s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-main { background: var(--amber); color: var(--ink); }
.btn-main:hover { background: var(--text); }
.btn-line { border: 1px solid var(--line); color: var(--text); }
.btn-line:hover { border-color: var(--amber); color: var(--amber); }
.sec-light .btn-line { border-color: rgba(10,13,18,.25); color: var(--ink); }
.sec-light .btn-line:hover { border-color: var(--ink); color: var(--ink); }

/* tanda sudut ala blueprint */
.rig::before, .rig::after {
  content: ""; position: absolute; width: 14px; height: 14px;
  border: 1px solid var(--amber);
}
.rig::before { top: -1px; left: -1px; border-right: 0; border-bottom: 0; }
.rig::after { bottom: -1px; right: -1px; border-left: 0; border-top: 0; }

.rig-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.rig-title { font-family: var(--font-mono); font-weight: 500; font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; }
.presets { display: flex; gap: .4rem; }
.presets button {
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .06em;
  background: transparent; color: var(--muted);
  border: 1px solid var(--line); border-radius: 999px;
  padding: .3rem .8rem; cursor: pointer;
  transition: color .2s ease, border-color .2s ease, background-color .2s ease;
}
.presets button:hover { color: var(--text); border-color: var(--muted); }
.presets button[aria-pressed="true"] { background: var(--amber); border-color: var(--amber); color: var(--ink); }

.plot-wrap { border: 1px solid var(--line); background: var(--ink); }
.g-grid { stroke: rgba(233,230,222,.12); stroke-width: 1; }
.g-txt { fill: var(--muted); font-family: var(--font-mono); font-size: 10px; }
.g-band { fill: rgba(255,176,0,.08); }
.g-set  { stroke: var(--amber); stroke-width: 1; stroke-dasharray: 4 4; opacity: .8; }
.trace  { fill: none; stroke: var(--amber); stroke-width: 2; stroke-linejoin: round; }

.controls { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin: 1.2rem 0 .9rem; }
.ctl label { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); display: block; }
.ctl label b { color: var(--amber); }
.ctl output { font-family: var(--font-mono); font-size: .85rem; float: right; }
.ctl input[type="range"] { width: 100%; accent-color: var(--amber); cursor: pointer; }

.readout { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); padding-top: .9rem; }
.readout dt { font-family: var(--font-mono); font-size: .62rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.readout dd { font-family: var(--font-mono); font-size: 1.15rem; color: var(--text); }
.hint { font-size: .85rem; color: var(--amber); margin-top: .7rem; }
.note { font-size: .72rem; color: var(--muted); margin-top: .4rem; }

/* ---------- [5] MARQUEE ---------- */
.marquee { border-block: 1px solid var(--line); overflow: hidden; padding: 1.1rem 0; }
.marquee-track { display: flex; width: max-content; animation: marquee 36s linear infinite; }
.marquee-track span {
  font-family: var(--font-mono); font-size: .85rem; letter-spacing: .22em;
  text-transform: uppercase; color: var(--muted); white-space: nowrap;
}
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- [6] KERANGKA SECTION ---------- */
.sec { padding-block: clamp(5rem, 11vw, 8.5rem); }
.split { display: grid; grid-template-columns: 240px 1fr; gap: clamp(2rem, 5vw, 4.5rem); }
.sec-title {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(1.9rem, 3.6vw, 2.9rem); line-height: 1.08;
  position: sticky; top: 7rem; align-self: start;
}
.ch {
  display: block;
  font-family: var(--font-mono); font-size: .8rem; letter-spacing: .2em;
  color: var(--amber); margin-bottom: .9rem;
}
.sub-title {
  font-family: var(--font-mono); font-size: .78rem; font-weight: 500;
  letter-spacing: .16em; text-transform: uppercase; color: var(--amber);
  margin: 2.6rem 0 1.2rem;
}

/* ---------- [7] TENTANG (latar terang) ---------- */
.sec-light { background: var(--paper); color: var(--ink); }
.sec-light .lead { font-size: 1.25rem; line-height: 1.5; margin-bottom: 1.1rem; }
.sec-light p { max-width: 36rem; }
.about { display: grid; grid-template-columns: 220px 1fr; gap: clamp(1.6rem, 4vw, 3rem); align-items: start; }
.portrait-frame {
  position: relative;
}
.portrait-frame::after { /* sorotan cahaya di belakang foto */
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(70% 55% at 50% 20%, rgba(255,176,0,.28), transparent 70%);
  mix-blend-mode: screen; pointer-events: none;
}
.portrait { filter: grayscale(.35) contrast(1.05); transition: filter .5s ease; }
.portrait-frame:hover .portrait { filter: grayscale(0); }

.timeline li { display: grid; grid-template-columns: 96px 1fr; gap: 1.2rem; padding: .9rem 0; border-top: 1px solid rgba(10,13,18,.14); }
.tl-when { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .06em; color: rgba(10,13,18,.6); padding-top: .2rem; }
.tl-what strong { display: block; font-weight: 600; }
.tl-what span { font-size: .88rem; color: rgba(10,13,18,.65); }

/* ---------- [8] PROYEK & GALERI ---------- */
.projects > li { border-top: 1px solid var(--line); padding: 2.2rem 0; transition: background-color .3s ease; }
.projects > li:hover { background: rgba(233,230,222,.02); }
.p-head { display: flex; align-items: baseline; gap: 1.2rem; flex-wrap: wrap; margin-bottom: .7rem; }
.p-num { font-family: var(--font-mono); font-size: .72rem; color: var(--amber); letter-spacing: .1em; }
.p-title { font-family: var(--font-display); font-weight: 500; font-size: clamp(1.25rem, 2.4vw, 1.7rem); line-height: 1.2; flex: 1 1 60%; transition: color .3s ease; }
.projects > li:hover .p-title { color: var(--amber); }
.p-when { font-family: var(--font-mono); font-size: .72rem; color: var(--muted); letter-spacing: .08em; }
.projects p { color: var(--muted); max-width: 44rem; font-size: .95rem; }

.tags { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: .95rem; }
.tags li {
  font-family: var(--font-mono); font-size: .66rem; letter-spacing: .08em;
  text-transform: uppercase; color: var(--muted);
  border: 1px solid var(--line); border-radius: 999px; padding: .28rem .75rem;
}
.sec-light .tags li { border-color: rgba(10,13,18,.2); color: rgba(10,13,18,.7); }

/* proyek utama: gambar + teks berdampingan */
.project.lead { display: grid; grid-template-columns: 300px 1fr; gap: clamp(1.4rem, 3.5vw, 2.6rem); }
.p-img {
  overflow: hidden;
  border: 1px solid var(--line);
  align-self: start;
}
.p-img img {
  width: 100%;
  height: auto;
  transition: transform .6s cubic-bezier(.2,.75,.2,1);
}
.project.lead:hover .p-img img { transform: scale(1.045); }

/* galeri: foto tersusun ke bawah */
.galeri-wrap { margin-top: 4rem; }
.galeri {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.1rem;
}
.galeri figure {
  border: 1px solid var(--line);
  background: var(--ink2);
  overflow: hidden;
}
.galeri img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform .5s ease;
}
.galeri figure:hover img { transform: scale(1.05); }
.galeri figcaption {
  font-family: var(--font-mono); font-size: .68rem; letter-spacing: .06em;
  color: var(--muted); padding: .7rem .9rem;
}

/* ---------- [10] KONTAK & FOOTER ---------- */
.sec-contact { padding-bottom: 0; }
.contact-big {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(2.2rem, 6vw, 4.6rem); line-height: 1.05;
  margin: 1.5rem 0 .5rem;
}
.contact-big em { color: var(--amber); font-style: italic; }
.footer {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem;
  border-top: 1px solid var(--line); margin-top: 6rem; padding-block: 1.6rem;
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .08em; color: var(--muted);
}
.footer a:hover { color: var(--amber); }

/* ---------- [11] ANIMASI MASUK & RESPONSIF ---------- */
/* elemen .reveal muncul saat terlihat di layar (diaktifkan script.js bagian 2) */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.75,.2,1); }
.reveal.in { opacity: 1; transform: none; }
/* elemen hero yang muncul langsung saat halaman dibuka */
.reveal-now { animation: fadeUp .9s cubic-bezier(.2,.75,.2,1) both; }
.d3 { animation-delay: .35s; } .d4 { animation-delay: .48s; } .d5 { animation-delay: .6s; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }

/* hormati pengguna yang mematikan animasi */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}

/* tablet */
@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .sec-title { position: static; }
  .project.lead { grid-template-columns: 1fr; }
  .skills { grid-template-columns: 1fr; }
  .about { grid-template-columns: 180px 1fr; }
}
/* ponsel */
@media (max-width: 640px) {
  .nav-links a:not(.nav-cta) i { display: none; }
  .nav-links { gap: .8rem; }
  .nav-links a { font-size: .68rem; }
  .controls { grid-template-columns: 1fr; }
  .readout { gap: .8rem; }
  .about { grid-template-columns: 1fr; }
  .portrait-frame { max-width: 240px; }
}
/* ---------- [9] KEGIATAN ---------- */
.events > li { border-top: 1px solid var(--line); padding: 2rem 0; }

.event > div {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap; margin-bottom: .6rem;
}
.event h3 {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(1.15rem, 2.2vw, 1.5rem); line-height: 1.25;
  flex: 1 1 60%; transition: color .3s ease;
}
.event:hover h3 { color: var(--amber); }
.event p { color: var(--muted); max-width: 44rem; font-size: .95rem; }

/* kegiatan dengan foto: foto di kiri, teks di kanan */
.event.has-img {
  display: grid;
  grid-template-columns: 220px 1fr;
  grid-template-rows: auto 1fr;
  column-gap: clamp(1.2rem, 3vw, 2.2rem);
  align-items: start;
}
.event.has-img .e-img { grid-column: 1; grid-row: 1 / span 2; }
.event.has-img > div,
.event.has-img > p { grid-column: 2; }

.e-img { overflow: hidden; border: 1px solid var(--line); background: var(--ink2); }
.e-img img {
  width: 100%; aspect-ratio: 4 / 3; object-fit: cover;
  transition: transform .6s cubic-bezier(.2,.75,.2,1);
}
.event:hover .e-img img { transform: scale(1.045); }