/* ════════════════════════════════════════════════════════════
   Portfolio — Catur Achmad Widiyanto
   Struktur: tokens → base → layout/komponen per section → motion → responsive
   ════════════════════════════════════════════════════════════ */

/* ── TOKENS ─────────────────────────────────────────────────── */
:root {
  --bg: #F7F5F0;
  --bg2: #EFECEA;
  --surface: #FFFFFF;
  --ink: #1A1A18;
  --ink2: #5A5A56;
  --ink3: #6E6E68;            /* digelapkan dari #9A9A94 agar lolos kontras AA */
  --accent: #1D6B52;
  --accent-ink: #FFFFFF;      /* teks di atas aksen */
  --accent-light: #E1F5EE;
  --border: rgba(26, 26, 24, .12);
  --border-strong: rgba(26, 26, 24, .28);
  --shadow: 0 16px 40px rgba(26, 26, 24, .08);
  --nav-bg: rgba(247, 245, 240, .85);
  --ghost: rgba(26, 26, 24, .045);

  /* Section kontras (Skills) */
  --inv-bg: #1A1A18;
  --inv-ink: #F7F5F0;
  --inv-ink2: rgba(247, 245, 240, .68);
  --inv-accent: #6FCFAE;
  --inv-border: rgba(247, 245, 240, .1);
  --inv-surface: rgba(247, 245, 240, .035);

  --ease: cubic-bezier(.22, 1, .36, 1);
  --dur-fast: 180ms;
  --dur: 400ms;
  --dur-slow: 700ms;
  --radius: 12px;
  --radius-lg: 20px;

  --f-serif: 'DM Serif Display', Georgia, 'Times New Roman', serif;
  --f-sans: 'DM Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --f-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, 'Liberation Mono', monospace;

  --gutter: max(16px, 5vw);
  --header-h: 68px;
  color-scheme: light;
}

/* Tema gelap — dipakai saat JS memilih "dark" … */
:root[data-theme="dark"] {
  --bg: #111311;
  --bg2: #181B18;
  --surface: #1B1F1C;
  --ink: #F1EFE9;
  --ink2: #BAB8B1;
  --ink3: #93918A;
  --accent: #4FBF9A;
  --accent-ink: #0D1A15;
  --accent-light: rgba(79, 191, 154, .14);
  --border: rgba(241, 239, 233, .1);
  --border-strong: rgba(241, 239, 233, .26);
  --shadow: 0 16px 40px rgba(0, 0, 0, .35);
  --nav-bg: rgba(17, 19, 17, .82);
  --ghost: rgba(241, 239, 233, .04);
  --inv-bg: #0A0C0A;
  --inv-surface: rgba(241, 239, 233, .03);
  color-scheme: dark;
}
/* … dan saat JS mati tapi sistem memakai mode gelap */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg: #111311; --bg2: #181B18; --surface: #1B1F1C;
    --ink: #F1EFE9; --ink2: #BAB8B1; --ink3: #93918A;
    --accent: #4FBF9A; --accent-ink: #0D1A15; --accent-light: rgba(79, 191, 154, .14);
    --border: rgba(241, 239, 233, .1); --border-strong: rgba(241, 239, 233, .26);
    --shadow: 0 16px 40px rgba(0, 0, 0, .35); --nav-bg: rgba(17, 19, 17, .82);
    --ghost: rgba(241, 239, 233, .04); --inv-bg: #0A0C0A; --inv-surface: rgba(241, 239, 233, .03);
    color-scheme: dark;
  }
}

/* ── BASE ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-padding-top: calc(var(--header-h) + 8px);
  -webkit-text-size-adjust: 100%;
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  font-family: var(--f-sans);
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
body.is-locked { overflow: hidden; }

img, svg { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; background: none; border: 0; }
ul, ol { list-style: none; }
a { color: inherit; }

::selection { background: var(--accent); color: var(--accent-ink); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.sr-only {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
html:not(.js) .js-only { display: none !important; }

.skip-link {
  position: fixed; left: 16px; top: -100px; z-index: 300;
  background: var(--ink); color: var(--bg);
  padding: .6rem 1rem; border-radius: 8px; text-decoration: none; font-weight: 500;
}
.skip-link:focus { top: 12px; }

/* Penanda konten yang harus dilengkapi pemilik */
.isi {
  background: repeating-linear-gradient(-45deg, transparent 0 6px, var(--accent-light) 6px 12px);
  border: 1px dashed var(--accent);
  border-radius: 4px;
  padding: 0 .3em;
  color: var(--ink);
  font-family: var(--f-mono);
  font-size: .85em;
}

/* ── TYPO SHARED ────────────────────────────────────────────── */
section { padding: 7rem var(--gutter); }

.section-label {
  font-family: var(--f-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink3);
  margin-bottom: .6rem;
}
.section-title {
  font-family: var(--f-serif);
  font-weight: 400;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -.02em;
  line-height: 1.15;
  margin-bottom: 3rem;
}

/* ── BUTTONS ────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: 44px;
  padding: .8rem 1.8rem;
  font-family: var(--f-sans);
  font-size: .88rem;
  font-weight: 500;
  letter-spacing: .03em;
  border-radius: 100px;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
  will-change: transform;
}
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--accent); color: var(--accent-ink); }
.btn-secondary { background: transparent; color: var(--ink); border-color: var(--border-strong); }
.btn-secondary:hover { border-color: var(--ink); }
.btn:disabled { cursor: progress; opacity: .8; }

.icon-btn {
  display: inline-grid; place-items: center;
  width: 40px; height: 40px;
  border-radius: 50%;
  color: var(--ink);
  border: 1px solid var(--border);
  transition: border-color var(--dur-fast), background-color var(--dur-fast), color var(--dur-fast);
}
.icon-btn:hover { border-color: var(--ink); }

/* ── HEADER / NAV ───────────────────────────────────────────── */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  background: var(--nav-bg);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background-color var(--dur) var(--ease);
}
.progress { position: absolute; inset: 0 0 auto 0; height: 2px; overflow: hidden; }
.progress-bar {
  display: block; height: 100%; width: 100%;
  background: var(--accent);
  transform-origin: 0 50%;
  transform: scaleX(0);
}
.nav {
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
  height: var(--header-h);
  padding: 0 var(--gutter);
}
.nav-logo {
  font-family: var(--f-serif);
  font-size: 1.25rem;
  text-decoration: none;
  letter-spacing: -.02em;
}
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; gap: 1.8rem; margin-left: auto; }
.nav-links a {
  position: relative;
  font-size: .8rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink2);
  text-decoration: none;
  padding: .4rem 0;
  transition: color var(--dur-fast);
}
.nav-links a::after {
  content: '';
  position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: var(--accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur) var(--ease);
}
.nav-links a:hover,
.nav-links a[aria-current="true"] { color: var(--ink); }
.nav-links a[aria-current="true"]::after { transform: scaleX(1); }

.nav-tools { display: flex; align-items: center; gap: .5rem; }

.theme-toggle .i-moon { display: none; }
[data-theme="dark"] .theme-toggle .i-sun { display: none; }
[data-theme="dark"] .theme-toggle .i-moon { display: block; }

.hamburger {
  display: none;
  flex-direction: column; justify-content: center; align-items: center; gap: 5px;
  width: 44px; height: 44px;
}
.hamburger span {
  display: block; width: 22px; height: 2px;
  background: var(--ink); border-radius: 2px;
  transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast);
}
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav {
  position: fixed; inset: 0; z-index: 99;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  padding: calc(var(--header-h) + 2rem) var(--gutter) 2rem;
}
.mobile-nav[hidden] { display: none; }
.mobile-nav ul { display: flex; flex-direction: column; align-items: center; gap: 1.6rem; }
.mobile-nav a {
  font-family: var(--f-serif);
  font-size: clamp(2rem, 9vw, 2.6rem);
  letter-spacing: -.02em;
  text-decoration: none;
  transition: color var(--dur-fast);
}
.mobile-nav a:hover, .mobile-nav a[aria-current="true"] { color: var(--accent); }

/* ── HERO ───────────────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding-top: calc(var(--header-h) + 4rem);
  padding-bottom: 4rem;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.hero-eyebrow {
  font-family: var(--f-mono);
  font-size: .78rem;
  letter-spacing: .12em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
  min-height: 1.4em;
}
.caret {
  display: none;
  width: 1px; height: 1em;
  margin-left: 2px;
  vertical-align: -.12em;
  background: currentColor;
}
.js .caret { display: inline-block; }
.hero-title {
  font-family: var(--f-serif);
  font-weight: 400;
  font-size: clamp(3rem, 8vw, 7rem);
  line-height: 1;
  letter-spacing: -.03em;
  max-width: 16ch;
}
.hero-title .w { display: inline-block; }
.hero-title em { font-style: italic; color: var(--accent); padding-right: .05em; }
.hero-sub {
  margin-top: 2.2rem;
  font-size: 1.05rem;
  color: var(--ink2);
  font-weight: 300;
  max-width: 52ch;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 2.5rem; }

.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 3.5rem;
  border-top: 1px solid var(--border);
  max-width: 1100px;
}
.metric {
  padding: 1.4rem 1.4rem 0 0;
  display: flex; flex-direction: column; gap: .3rem;
}
.metric + .metric { padding-left: 1.4rem; border-left: 1px solid var(--border); }
.metric-num {
  font-family: var(--f-serif);
  font-size: clamp(1.9rem, 3.2vw, 2.6rem);
  line-height: 1;
  letter-spacing: -.02em;
  font-variant-numeric: tabular-nums;
}
.metric-num small { font-size: .55em; color: var(--ink3); }
.metric-label { font-size: .82rem; color: var(--ink2); line-height: 1.45; max-width: 22ch; }

.hero-bg-text {
  position: absolute; right: -2vw; bottom: -3rem; z-index: -1;
  font-family: var(--f-serif);
  font-size: clamp(8rem, 22vw, 18rem);
  line-height: 1;
  color: var(--ghost);
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
  will-change: transform;
}

/* ── ABOUT ──────────────────────────────────────────────────── */
.about {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 4rem;
  align-items: start;
}
.profile-photo {
  position: relative;
  margin-top: 1rem;
  aspect-ratio: 3 / 4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg2);
  border: 1px solid var(--border);
}
.profile-photo img {
  position: relative;
  width: 100%; height: 100%;
  object-fit: cover; object-position: 50% 30%;
  transition: transform var(--dur-slow) var(--ease);
}
.profile-photo:hover img { transform: scale(1.02); }
.profile-photo.img-failed img { display: none; }
.avatar-fallback {
  position: absolute; inset: 0;
  display: grid; place-items: center;
  font-family: var(--f-serif);
  font-size: clamp(3rem, 6vw, 4.5rem);
  color: var(--accent);
  background: var(--accent-light);
  letter-spacing: -.02em;
}
.profile-photo::after {
  content: '';
  position: absolute; inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(29, 107, 82, .15);
  pointer-events: none;
}

.journey {
  position: relative;
  margin-top: 2rem;
  padding-left: 1.4rem;
  display: grid; gap: 1.1rem;
}
.journey::before {
  content: '';
  position: absolute; left: 4px; top: .5rem; bottom: .5rem;
  width: 1px; background: var(--border-strong);
}
.journey li { position: relative; display: flex; flex-direction: column; line-height: 1.35; }
.journey li::before {
  content: '';
  position: absolute; left: calc(-1.4rem + 0px); top: .35rem;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--bg); border: 1px solid var(--ink3);
}
.journey li.is-now::before { background: var(--accent); border-color: var(--accent); }
.journey-when { font-family: var(--f-mono); font-size: .68rem; letter-spacing: .1em; color: var(--ink3); text-transform: uppercase; }
.journey-what { font-size: .92rem; font-weight: 500; }

.about-text h2 {
  font-family: var(--f-serif);
  font-weight: 400;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  letter-spacing: -.02em;
  line-height: 1.25;
  margin-bottom: 1.25rem;
}
.about-text p { color: var(--ink2); font-weight: 300; margin-bottom: 1rem; max-width: 68ch; }
.about-facts {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 1rem; margin-top: 2rem;
}
.fact-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.3rem;
  min-width: 0;
}
.fact-card dt { font-size: .75rem; color: var(--ink3); margin-bottom: .2rem; }
.fact-card dd { font-weight: 500; font-size: .95rem; line-height: 1.45; }
.fact-email { display: flex; align-items: center; justify-content: space-between; gap: .5rem; flex-wrap: wrap; }
.fact-email a { text-decoration: none; overflow-wrap: anywhere; }
.fact-email a:hover { color: var(--accent); }
.copy-btn {
  font-family: var(--f-mono); font-size: .68rem; letter-spacing: .08em; text-transform: uppercase;
  padding: .3rem .6rem; border-radius: 6px; border: 1px solid var(--border-strong); color: var(--ink2);
  min-height: 32px;
}
.copy-btn:hover { color: var(--accent); border-color: var(--accent); }
.fact-status { border-color: color-mix(in srgb, var(--accent) 35%, transparent); background: var(--accent-light); }
.fact-status dd { color: var(--accent); display: flex; align-items: baseline; gap: .5rem; }
.status-dot {
  flex: none; width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  position: relative; top: -1px;
}

/* ── EXPERIENCE (timeline) ──────────────────────────────────── */
.experience { border-top: 1px solid var(--border); }
.timeline {
  --period-w: 200px;
  --col-gap: 3rem;
  --rail-x: calc(var(--period-w) + var(--col-gap) / 2);
  position: relative;
}
.tl-rail {
  position: absolute; top: .6rem; bottom: .6rem; left: var(--rail-x);
  width: 1px; background: var(--border);
}
.tl-fill {
  position: absolute; inset: 0;
  background: var(--accent);
  transform-origin: top;
  transform: scaleY(var(--tl, 1));
}
.tl-item {
  position: relative;
  display: grid;
  grid-template-columns: var(--period-w) minmax(0, 1fr);
  column-gap: var(--col-gap);
  padding: 0 0 3rem;
}
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: '';
  position: absolute; left: var(--rail-x); top: .45rem;
  width: 11px; height: 11px; margin-left: -5px;
  border-radius: 50%;
  background: var(--bg); border: 1px solid var(--ink3);
  z-index: 1;
}
.tl-item.is-active::before { background: var(--accent); border-color: var(--accent); }
.tl-period {
  font-family: var(--f-mono);
  font-size: .75rem;
  letter-spacing: .06em;
  color: var(--ink3);
  padding-top: .25rem;
  line-height: 1.6;
}
.badge {
  display: inline-block;
  margin-top: .4rem;
  background: var(--accent-light);
  color: var(--accent);
  font-size: .65rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .2rem .5rem;
  border-radius: 4px;
}
.tl-body { padding-left: var(--col-gap); max-width: 72ch; }
.tl-role { font-family: var(--f-serif); font-weight: 400; font-size: 1.4rem; letter-spacing: -.01em; line-height: 1.3; }
.tl-company { font-size: .88rem; font-weight: 500; color: var(--accent); margin: .2rem 0 .75rem; }
.tl-desc { font-size: .92rem; color: var(--ink2); font-weight: 300; margin-bottom: 1rem; }
.tags, .stack, .chips { display: flex; flex-wrap: wrap; gap: .4rem; }
.tags li, .stack li {
  font-family: var(--f-mono);
  font-size: .68rem;
  padding: .2rem .55rem;
  background: var(--bg2);
  color: var(--ink2);
  border-radius: 4px;
  border: 1px solid var(--border);
}

/* ── SKILLS (section kontras) ───────────────────────────────── */
.section-inverse { background: var(--inv-bg); color: var(--inv-ink); }
.section-inverse .section-label { color: var(--inv-ink2); }
.section-inverse .section-title { margin-bottom: .8rem; }
.skills-intro { color: var(--inv-ink2); font-weight: 300; margin-bottom: 3rem; }
.skill-groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr));
  gap: 1px;
  background: var(--inv-border);
  border: 1px solid var(--inv-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.skill-group {
  background: var(--inv-bg);
  padding: 2rem 1.8rem;
  display: flex; flex-direction: column;
  transition: background-color var(--dur-fast);
}
.skill-group:hover { background: color-mix(in srgb, var(--inv-bg) 94%, var(--inv-ink)); }
.skill-kicker { font-family: var(--f-mono); font-size: .72rem; color: var(--inv-accent); letter-spacing: .1em; margin-bottom: .8rem; }
.skill-group h3 { font-size: 1.1rem; font-weight: 500; margin-bottom: 1.1rem; }
.chips { margin-bottom: 1.5rem; }
.chips li {
  font-family: var(--f-mono);
  font-size: .72rem;
  padding: .3rem .65rem;
  border-radius: 100px;
  border: 1px solid var(--inv-border);
  background: var(--inv-surface);
  color: var(--inv-ink);
  transition: border-color var(--dur-fast), color var(--dur-fast);
}
.chips li:hover { border-color: var(--inv-accent); color: var(--inv-accent); }
.skill-used { margin-top: auto; font-size: .82rem; color: var(--inv-ink2); line-height: 1.5; }
.skill-used a { color: var(--inv-ink); text-decoration-color: var(--inv-accent); text-underline-offset: 3px; }
.skill-used a:hover { color: var(--inv-accent); }
.section-inverse :focus-visible { outline-color: var(--inv-accent); }

/* ── PROJECTS ───────────────────────────────────────────────── */
.section-header {
  display: flex; align-items: flex-end; justify-content: space-between;
  flex-wrap: wrap; gap: 1.5rem;
  margin-bottom: 3rem;
}
.section-header .section-title { margin-bottom: 0; }
.filters { display: flex; flex-wrap: wrap; gap: .4rem; }
.filter {
  font-size: .8rem;
  padding: .45rem 1rem;
  min-height: 38px;
  border-radius: 100px;
  border: 1px solid var(--border-strong);
  color: var(--ink2);
  transition: background-color var(--dur-fast), color var(--dur-fast), border-color var(--dur-fast);
}
.filter:hover { color: var(--ink); border-color: var(--ink); }
.filter[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 320px), 1fr));
  gap: 1.5rem;
}
.project-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
  transform-style: preserve-3d;
}
.project-card[hidden] { display: none; }
.project-card:hover { box-shadow: var(--shadow); border-color: var(--border-strong); }
.project-card:target { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-light); }
.project-card:focus-within:has(.project-open:focus-visible) { border-color: var(--accent); }

.project-media {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.project-media img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: top;
  transition: transform var(--dur-slow) var(--ease);
}
.project-card:hover .project-media img { transform: scale(1.04); }
.project-arrow {
  position: absolute; top: .9rem; right: .9rem;
  width: 38px; height: 38px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--surface); color: var(--ink);
  font-size: 1rem;
  box-shadow: 0 4px 14px rgba(0, 0, 0, .12);
  opacity: 0; transform: translate(-6px, 6px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.project-card:hover .project-arrow,
.project-card:focus-within .project-arrow { opacity: 1; transform: none; }
html:not(.js) .project-arrow { display: none; }

.project-body { padding: 1.8rem; display: flex; flex-direction: column; flex: 1; }
.project-tag, .case-tag {
  display: inline-block; align-self: flex-start;
  background: var(--accent-light);
  color: var(--accent);
  font-family: var(--f-mono);
  font-size: .68rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .3rem .75rem;
  border-radius: 100px;
  margin-bottom: 1.1rem;
}
.project-card h3 {
  font-family: var(--f-serif);
  font-weight: 400;
  font-size: 1.4rem;
  letter-spacing: -.01em;
  line-height: 1.25;
  margin-bottom: .75rem;
}
.project-open { text-align: left; letter-spacing: inherit; line-height: inherit; }
.project-open:focus-visible { outline: none; }
.project-open:focus-visible::after { outline: 2px solid var(--accent); outline-offset: -2px; }
/* Tombol judul "melebar" menutupi seluruh kartu agar kartu bisa diklik */
.js .project-open::after { content: ''; position: absolute; inset: 0; z-index: 1; border-radius: var(--radius); }
html:not(.js) .project-open { cursor: text; }
.project-body > p { font-size: .9rem; color: var(--ink2); font-weight: 300; flex: 1; margin-bottom: 1.4rem; }
.project-body .stack { margin-bottom: 1.4rem; }
.project-links {
  display: flex; align-items: center; justify-content: space-between; gap: .75rem; flex-wrap: wrap;
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.project-link {
  position: relative; z-index: 2;
  font-size: .84rem; font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  display: inline-flex; align-items: center; gap: .3rem;
  min-height: 32px;
}
.project-link:hover { text-decoration: underline; text-underline-offset: 3px; }
.project-private {
  font-family: var(--f-mono); font-size: .72rem; letter-spacing: .06em; color: var(--ink3);
}
.project-more { font-size: .8rem; color: var(--ink2); transition: color var(--dur-fast), transform var(--dur-fast); }
.project-card:hover .project-more { color: var(--ink); transform: translateX(3px); }

/* ── MODAL (case study) & LIGHTBOX — base dialog ────────────── */
dialog { border: 0; padding: 0; background: transparent; color: var(--ink); max-width: none; max-height: none; }
dialog::backdrop { background: rgba(10, 12, 10, .6); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }

.modal {
  width: min(760px, 100% - 32px);
  max-height: calc(100dvh - 48px);
  margin: auto;
  overflow: visible;
}
.modal-panel {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  max-height: calc(100dvh - 48px);
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: clamp(1.5rem, 4vw, 2.75rem);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .25);
}
.modal-close { position: sticky; top: 0; float: right; margin: -.5rem -.5rem 0 1rem; background: var(--bg); z-index: 2; }
.case-title {
  font-family: var(--f-serif); font-weight: 400;
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  letter-spacing: -.02em; line-height: 1.15;
  margin-bottom: 1.8rem;
}
.case-grid { display: grid; gap: 0; border-top: 1px solid var(--border); }
.case-grid > div {
  display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 1.5rem;
  padding: 1.1rem 0; border-bottom: 1px solid var(--border);
}
.case-grid dt {
  font-family: var(--f-mono); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase;
  color: var(--ink3); padding-top: .25rem;
}
.case-grid dd { color: var(--ink2); font-size: .95rem; font-weight: 300; }
.case-result dd { color: var(--ink); }
.case-num {
  display: block;
  font-family: var(--f-serif); font-weight: 400;
  font-size: 2rem; line-height: 1.1; letter-spacing: -.02em;
  color: var(--accent);
  margin-bottom: .2rem;
}
.case-diagram {
  margin: 0 0 1.8rem;
  padding: 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg2);
}
.case-diagram svg { width: 100%; height: auto; }
.case-diagram figcaption { margin-top: .75rem; font-size: .78rem; color: var(--ink3); }
.topo-links path { fill: none; stroke: var(--ink3); stroke-width: 1.2; stroke-dasharray: 4 4; }
.topo-node rect { fill: var(--surface); stroke: var(--border-strong); }
.topo-node.is-core rect { fill: var(--accent-light); stroke: var(--accent); }
.topo-node text { fill: var(--ink); font-family: var(--f-sans); font-size: 12px; text-anchor: middle; }
.topo-node .topo-sub { fill: var(--ink3); font-size: 10px; }

/* Lightbox */
.lightbox {
  width: 100%; height: 100%;
  max-width: 100vw; max-height: 100dvh;
  margin: 0;
  display: none;
  align-items: center; justify-content: center;
  padding: 64px 72px 24px;
  touch-action: pan-y;
}
.lightbox[open] { display: flex; }
.lightbox::backdrop { background: rgba(8, 9, 8, .88); }
.lb-figure { max-width: 100%; max-height: 100%; display: flex; flex-direction: column; align-items: center; gap: .8rem; }
.lb-figure img {
  max-width: 100%;
  max-height: calc(100dvh - 140px);
  width: auto; height: auto;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .4);
}
.lb-figure figcaption { color: #F1EFE9; font-size: .88rem; text-align: center; max-width: 60ch; }
.lb-count { font-family: var(--f-mono); font-size: .75rem; color: rgba(241, 239, 233, .7); margin-left: .5rem; }
.lightbox .icon-btn { color: #F1EFE9; border-color: rgba(241, 239, 233, .25); background: rgba(0, 0, 0, .3); }
.lightbox .icon-btn:hover { border-color: #F1EFE9; }
.lb-close { position: absolute; top: 16px; right: 16px; }
.lb-nav { position: absolute; top: 50%; transform: translateY(-50%); width: 48px; height: 48px; }
.lb-prev { left: 12px; }
.lb-next { right: 12px; }
.lightbox :focus-visible { outline-color: #F1EFE9; }

/* ── CERTIFICATES ───────────────────────────────────────────── */
.certificates { border-top: 1px solid var(--border); }
.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 240px), 1fr));
  gap: 1.5rem;
}
.cert-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.cert-card:hover { box-shadow: var(--shadow); border-color: var(--border-strong); }
.cert-preview {
  position: relative; display: block;
  aspect-ratio: 4 / 3;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  cursor: zoom-in;
}
.cert-preview img {
  width: 100%; height: 100%;
  object-fit: cover; object-position: top;
  transition: transform var(--dur-slow) var(--ease);
}
.cert-preview:hover img { transform: scale(1.04); }
.cert-preview:focus-visible { outline-offset: -3px; }
.cert-zoom {
  position: absolute; right: .75rem; bottom: .75rem;
  width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--surface); color: var(--ink);
  box-shadow: 0 4px 14px rgba(0, 0, 0, .12);
  opacity: .9;
}
.cert-body { padding: 1.2rem 1.4rem 1.4rem; }
.cert-issuer {
  font-family: var(--f-mono); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--accent); margin-bottom: .3rem;
}
.cert-name {
  font-family: var(--f-serif); font-weight: 400;
  font-size: 1.05rem; letter-spacing: -.01em; line-height: 1.3;
  margin-bottom: .35rem;
}
.cert-date { font-family: var(--f-mono); font-size: .75rem; color: var(--ink3); }
.cert-verify { display: inline-block; margin-top: .5rem; font-size: .8rem; color: var(--accent); }

/* ── CONTACT ────────────────────────────────────────────────── */
.contact { background: var(--bg2); border-top: 1px solid var(--border); text-align: center; }
.contact h2 {
  font-family: var(--f-serif); font-weight: 400;
  font-size: clamp(2.5rem, 6vw, 5rem);
  letter-spacing: -.03em; line-height: 1.05;
  margin-bottom: 1rem;
}
.contact h2 em { font-style: italic; color: var(--accent); }
.contact .sub { color: var(--ink2); font-weight: 300; max-width: 44ch; margin: 0 auto 2.2rem; }
.quick-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: .75rem; }

.or-divider {
  display: flex; align-items: center; gap: 1rem;
  max-width: 520px; margin: 2.5rem auto 2rem;
  font-family: var(--f-mono); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink3);
}
.or-divider::before, .or-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }

.contact-form {
  max-width: 520px; margin: 0 auto;
  display: flex; flex-direction: column; gap: 1rem;
  text-align: left;
}
.field { display: flex; flex-direction: column; gap: .35rem; }
.field label { font-size: .8rem; font-weight: 500; color: var(--ink2); }
.field input, .field textarea {
  width: 100%;
  padding: .85rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  font-family: var(--f-sans);
  font-size: 1rem;
  color: var(--ink);
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}
.field textarea { resize: vertical; min-height: 140px; }
.field input::placeholder, .field textarea::placeholder { color: var(--ink3); }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-light); }
.field [aria-invalid="true"] { border-color: #C0392B; }
[data-theme="dark"] .field [aria-invalid="true"] { border-color: #F08A7E; }
.field-error { min-height: 1.2em; font-size: .78rem; color: #B03A2E; line-height: 1.4; }
[data-theme="dark"] .field-error { color: #F4A196; }
.field-error:empty { min-height: 0; }

.hp { position: absolute !important; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.btn-submit { align-self: center; margin-top: .5rem; min-width: 190px; }
.btn-submit .spinner {
  display: none;
  width: 14px; height: 14px; border-radius: 50%;
  border: 2px solid currentColor; border-right-color: transparent;
}
.btn-submit[data-state="sending"] .spinner { display: inline-block; }
.btn-submit[data-state="success"] { background: var(--accent); color: var(--accent-ink); }
.btn-submit[data-state="error"] { background: #B03A2E; color: #fff; }
.form-status { text-align: center; font-size: .85rem; color: var(--ink2); min-height: 1.3em; }

.contact-social {
  display: flex; justify-content: center; flex-wrap: wrap; gap: .5rem 1.5rem;
  margin-top: 3rem;
}
.social-link {
  display: inline-block;
  font-family: var(--f-mono); font-size: .78rem; letter-spacing: .08em; text-transform: uppercase;
  color: var(--ink2); text-decoration: none;
  border-bottom: 1px solid var(--border-strong);
  padding: .5rem 0 2px;
  transition: color var(--dur-fast), border-color var(--dur-fast);
}
.social-link:hover { color: var(--accent); border-color: var(--accent); }

/* ── FOOTER ─────────────────────────────────────────────────── */
.site-footer {
  padding: 2rem var(--gutter);
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem;
}
.site-footer p { font-size: .8rem; color: var(--ink3); }
.back-top {
  font-family: var(--f-mono); font-size: .75rem; letter-spacing: .06em;
  color: var(--ink2); text-decoration: none;
  padding: .5rem 0;
}
.back-top:hover { color: var(--accent); }

/* ── TOAST ──────────────────────────────────────────────────── */
.toast {
  position: fixed; left: 50%; bottom: 1.5rem; z-index: 400;
  max-width: calc(100% - 32px);
  background: var(--ink); color: var(--bg);
  padding: .75rem 1.4rem;
  border-radius: 100px;
  font-size: .88rem; font-weight: 500;
  transform: translate(-50%, 150%);
  opacity: 0;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
  pointer-events: none;
}
.toast.show { transform: translate(-50%, 0); opacity: 1; }

/* ── CUSTOM CURSOR (P2, hanya pointer: fine) ────────────────── */
.cursor-dot, .cursor-ring {
  position: fixed; top: 0; left: 0; z-index: 500;
  pointer-events: none;
  border-radius: 50%;
  opacity: 0;
  transition: opacity var(--dur-fast);
}
.cursor-dot { width: 6px; height: 6px; margin: -3px 0 0 -3px; background: var(--accent); }
.cursor-ring {
  width: 34px; height: 34px; margin: -17px 0 0 -17px;
  border: 1px solid var(--accent);
  transition: opacity var(--dur-fast), width var(--dur-fast) var(--ease), height var(--dur-fast) var(--ease),
              margin var(--dur-fast) var(--ease), background-color var(--dur-fast);
}
.has-cursor .cursor-dot, .has-cursor .cursor-ring { opacity: 1; }
.cursor-ring.is-hover {
  width: 56px; height: 56px; margin: -28px 0 0 -28px;
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}
.cursor-hidden .cursor-dot, .cursor-hidden .cursor-ring { opacity: 0; }

/* ════════════════════════════════════════════════════════════
   MOTION — semua animasi hanya bila pengguna tidak meminta reduced motion.
   Konten tersembunyi hanya jika JS aktif (.js), jadi tetap terbaca tanpa JS.
   ════════════════════════════════════════════════════════════ */
@media (prefers-reduced-motion: no-preference) {
  @keyframes fadeUp {
    from { opacity: 0; transform: translateY(.45em); }
    to   { opacity: 1; transform: none; }
  }
  @keyframes pulse {
    0%   { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 45%, transparent); }
    70%  { box-shadow: 0 0 0 9px transparent; }
    100% { box-shadow: 0 0 0 0 transparent; }
  }
  @keyframes caret { 50% { opacity: 0; } }
  @keyframes modalIn {
    from { opacity: 0; transform: translateY(16px) scale(.98); }
    to   { opacity: 1; transform: none; }
  }
  @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

  .hero-eyebrow { animation: fadeUp 600ms var(--ease) both; }
  .hero-title .w { animation: fadeUp 600ms var(--ease) both; }
  .hero-title .w:nth-child(1) { animation-delay: 80ms; }
  .hero-title .w:nth-child(2) { animation-delay: 140ms; }
  .hero-title .w:nth-child(3) { animation-delay: 200ms; }
  .hero-sub     { animation: fadeUp 600ms 280ms var(--ease) both; }
  .hero-actions { animation: fadeUp 600ms 340ms var(--ease) both; }
  .metrics      { animation: fadeUp 600ms 400ms var(--ease) both; }
  .caret { animation: caret 1s steps(1) infinite; }

  .js .reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
    transition-delay: var(--delay, 0ms);
  }
  .js .reveal.is-visible { opacity: 1; transform: none; }

  .js .reveal-clip img { clip-path: inset(100% 0 0 0); transition: clip-path var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease); }
  .js .reveal-clip.is-visible img { clip-path: inset(0 0 0 0); }

  .tl-item.is-active::before, .status-dot { animation: pulse 2.4s var(--ease) infinite; }

  .modal[open] .modal-panel { animation: modalIn var(--dur) var(--ease); }
  .modal[open]::backdrop, .lightbox[open]::backdrop { animation: fadeIn var(--dur-fast) linear; }
  .lightbox[open] .lb-figure { animation: modalIn var(--dur) var(--ease); }
  .lb-figure.is-switching img { opacity: 0; }
  .lb-figure img { transition: opacity var(--dur-fast) linear; }

  .btn-submit[data-state="sending"] .spinner { animation: spin .8s linear infinite; }
  @keyframes spin { to { transform: rotate(360deg); } }

  ::view-transition-group(*) { animation-duration: var(--dur); animation-timing-function: var(--ease); }
}

/* Timeline terisi mengikuti scroll hanya jika motion diizinkan (JS menyetel --tl) */
@media (prefers-reduced-motion: reduce) {
  .tl-fill { transform: none; }
}

/* ── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .metric:nth-child(3) { padding-left: 0; border-left: 0; }
  .metric:nth-child(n+3) { padding-top: 1.2rem; }
}

@media (max-width: 900px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
}

@media (max-width: 768px) {
  :root { --header-h: 60px; }
  section { padding: 5rem var(--gutter); }
  .about { grid-template-columns: 1fr; gap: 2rem; }
  .about-left { display: grid; grid-template-columns: minmax(0, 200px) minmax(0, 1fr); gap: 0 1.5rem; align-items: end; }
  .about-left .section-label { grid-column: 1 / -1; }
  .profile-photo { margin-top: .5rem; }
  .journey { margin-top: 0; }
  .timeline { --period-w: 0px; --col-gap: 0px; --rail-x: 5px; }
  .tl-item { grid-template-columns: 1fr; padding-left: 1.75rem; }
  .tl-body { padding-left: 0; }
  .tl-period { margin-bottom: .4rem; padding-top: 0; }
  .tl-item::before { top: .3rem; }
  .case-grid > div { grid-template-columns: 1fr; gap: .3rem; }
  .lightbox { padding: 60px 12px 16px; }
  .lb-nav { top: auto; bottom: 16px; transform: none; }
  .lb-prev { left: calc(50% - 56px); }
  .lb-next { right: calc(50% - 56px); }
  .lb-figure img { max-height: calc(100dvh - 190px); }
  .lb-figure { padding-bottom: 60px; }
}

@media (max-width: 520px) {
  .about-left { grid-template-columns: 1fr; }
  .profile-photo { max-width: 240px; }
  .journey { margin-top: 1.5rem; }
  .about-facts { grid-template-columns: 1fr; }
  .metric { padding-right: .8rem; }
  .metric + .metric { padding-left: .8rem; }
  .metric:nth-child(3) { padding-left: 0; }
  .hero-actions .btn { flex: 1 1 auto; }
  .filters { width: 100%; }
}

@media print {
  .site-header, .mobile-nav, .hero-bg-text, .quick-actions, .contact-form, .or-divider, .toast { display: none !important; }
  .js .reveal { opacity: 1 !important; transform: none !important; }
  section { padding: 2rem 0; }
}

/* Kursor native disembunyikan hanya saat kursor kustom aktif; kembali normal di kolom teks & dialog */
.has-cursor:not(.dialog-open):not(.cursor-hidden),
.has-cursor:not(.dialog-open):not(.cursor-hidden) * { cursor: none !important; }
.dialog-open .cursor-dot, .dialog-open .cursor-ring { opacity: 0 !important; }