:root {
  --bg: #060708;
  --bg-2: #0b0c0e;
  --card: #0e1012;
  --line: #1c1f24;
  --line-2: #2a2e35;
  --text: #f1f2ec;
  --muted: #9197a0;
  --accent: #c6ff3d;
  --accent-dim: rgba(198, 255, 61, 0.12);
  --f-display: "Bricolage Grotesque", system-ui, sans-serif;
  --f-body: "Geist", system-ui, -apple-system, Arial, sans-serif;
  --f-mono: "JetBrains Mono", ui-monospace, Menlo, monospace;
  --r: 18px;
  --wrap: 1200px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--f-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
h1, h2, h3 { font-family: var(--f-display); margin: 0; line-height: 1.05; letter-spacing: -0.02em; }
p { margin: 0; }
::selection { background: var(--accent); color: #000; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.accent { color: var(--accent); }
.muted { color: var(--muted); }
.mono { font-family: var(--f-mono); font-size: 0.78rem; letter-spacing: 0.04em; }
.small { font-size: 0.75rem; }
.center { text-align: center; margin-top: 48px; }

.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: #000; padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }

.grain {
  position: fixed; inset: 0; pointer-events: none; z-index: 0; opacity: 0.5;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(198, 255, 61, 0.09), transparent 60%),
    radial-gradient(700px 500px at -10% 30%, rgba(198, 255, 61, 0.05), transparent 60%);
}
main, .footer, .nav { position: relative; z-index: 1; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 22px; border-radius: 999px; border: 1px solid var(--line-2);
  font-weight: 500; font-size: 0.95rem; background: transparent;
  transition: transform .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--accent { background: var(--accent); color: #0a0b0c; border-color: var(--accent); }
.btn--accent:hover { background: #d6ff6e; }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn--sm { padding: 9px 16px; font-size: 0.85rem; }
.btn--block { width: 100%; }
.btn:disabled { opacity: .6; cursor: wait; transform: none; }

/* ---------- Nav ---------- */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 50; padding: 14px 16px; transition: padding .3s ease; }
.nav__inner {
  max-width: var(--wrap); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 10px 12px 10px 20px; border: 1px solid transparent; border-radius: 999px; transition: all .3s ease;
}
.nav.is-scrolled .nav__inner, .nav.is-open .nav__inner { background: rgba(11, 12, 14, 0.82); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-color: var(--line); }
.logo { font-family: var(--f-mono); font-weight: 700; font-size: 0.95rem; }
.caret { color: var(--accent); animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.nav__links { display: flex; gap: 28px; }
.nav__links a { font-size: 0.9rem; color: var(--muted); transition: color .2s; position: relative; }
.nav__links a:hover, .nav__links a.is-active { color: var(--text); }
.nav__links a.is-active::after { content: ""; position: absolute; left: 50%; bottom: -8px; width: 4px; height: 4px; border-radius: 50%; background: var(--accent); transform: translateX(-50%); }
.nav__toggle { display: none; width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--line-2); background: transparent; position: relative; }
.nav__toggle span { position: absolute; left: 12px; right: 12px; height: 1.5px; background: var(--text); transition: transform .3s; }
.nav__toggle span:first-child { top: 17px; } .nav__toggle span:last-child { top: 23px; }
.nav.is-open .nav__toggle span:first-child { transform: translateY(3px) rotate(45deg); }
.nav.is-open .nav__toggle span:last-child { transform: translateY(-3px) rotate(-45deg); }
.nav__mobile { display: none; }

/* ---------- Hero ---------- */
.hero { padding: 150px 0 0; min-height: 100vh; display: flex; flex-direction: column; justify-content: space-between; }
.hero > .wrap { width: 100%; }
.hero__grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 56px; align-items: center; }
.hero__grid > *, .about > *, .contact__grid > *, .stack > *, .projects > *, .services > * { min-width: 0; }
.tag {
  display: inline-flex; align-items: center; gap: 10px; font-family: var(--f-mono); font-size: 0.72rem; letter-spacing: 0.08em;
  padding: 8px 14px; border: 1px solid var(--line-2); border-radius: 999px; color: var(--muted); background: var(--bg-2);
}
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(198,255,61,.6); animation: pulse 2s infinite; flex: none; }
@keyframes pulse { 70% { box-shadow: 0 0 0 8px rgba(198,255,61,0); } 100% { box-shadow: 0 0 0 0 rgba(198,255,61,0); } }
.eyebrow { margin-top: 28px; font-family: var(--f-mono); font-size: 0.8rem; color: var(--muted); }
.hero__title { margin-top: 14px; font-size: clamp(2.5rem, 5.4vw, 4.9rem); font-weight: 800; letter-spacing: -0.035em; }
.hero__lead { margin-top: 26px; max-width: 560px; color: var(--muted); font-size: 1.08rem; }
.hero__ctas { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 12px; }
.stats { list-style: none; padding: 0; margin: 48px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid var(--line); }
.stats li { padding: 18px 16px 0 0; }
.stats li + li { padding-left: 16px; border-left: 1px solid var(--line); }
.stats strong { display: block; font-family: var(--f-display); font-size: 1.8rem; font-weight: 700; }
.stats span { font-family: var(--f-mono); font-size: 0.7rem; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }

.hero__side { position: relative; }
.photo { position: relative; border-radius: 24px; overflow: hidden; border: 1px solid var(--line); background: linear-gradient(160deg, #15181c, #0a0b0d); aspect-ratio: 1 / 1; }
.photo::before { content: ""; position: absolute; inset: 0; background-image: radial-gradient(rgba(198,255,61,.22) 1px, transparent 1px); background-size: 22px 22px; mask-image: linear-gradient(to bottom, #000 30%, transparent 85%); }
.photo img { position: relative; width: 100%; height: 100%; object-fit: contain; object-position: center bottom; filter: grayscale(.1) contrast(1.05) drop-shadow(0 20px 40px rgba(0,0,0,.6)); }
.photo__chip { position: absolute; left: 16px; top: 16px; display: inline-flex; align-items: center; gap: 8px; padding: 7px 12px; border-radius: 999px; font-family: var(--f-mono); font-size: 0.72rem; background: rgba(6,7,8,.75); backdrop-filter: blur(8px); border: 1px solid var(--line-2); }
.terminal { position: relative; border-radius: 14px; border: 1px solid var(--line-2); background: rgba(11, 12, 14, 0.94); backdrop-filter: blur(10px); box-shadow: 0 30px 60px -20px rgba(0,0,0,.8); overflow: hidden; }
.terminal__bar { display: flex; align-items: center; gap: 6px; padding: 11px 14px; border-bottom: 1px solid var(--line); background: #0d0f11; }
.terminal__bar i { width: 10px; height: 10px; border-radius: 50%; background: #2c3036; }
.terminal__bar i:first-child { background: #ff5f57; } .terminal__bar i:nth-child(2) { background: #febc2e; } .terminal__bar i:nth-child(3) { background: #28c840; }
.terminal__bar span { margin-left: 10px; font-family: var(--f-mono); font-size: 0.7rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.terminal__body { margin: 0; padding: 16px 18px; font-family: var(--f-mono); font-size: 0.78rem; line-height: 1.75; white-space: pre-wrap; color: var(--text); }
.terminal__body .p { color: var(--accent); }
.terminal__body .o { color: var(--muted); }
.terminal__body .bar { color: var(--accent); }

.marquee { margin-top: 80px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); overflow: hidden; padding: 18px 0; mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent); }
.marquee__track { display: flex; gap: 28px; width: max-content; animation: scroll 40s linear infinite; font-family: var(--f-display); font-size: 1.4rem; font-weight: 600; white-space: nowrap; }
.marquee__track b { color: var(--accent); font-weight: 400; }
@keyframes scroll { to { transform: translateX(-50%); } }

/* ---------- Sections ---------- */
.section { padding: 120px 0 0; }
.section__head { margin-bottom: 56px; max-width: 820px; }
.section__head--sm { margin: 96px 0 32px; }
.section__head--row { max-width: none; display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; flex-wrap: wrap; }
.marker { display: inline-block; font-family: var(--f-mono); font-size: 0.75rem; color: var(--accent); letter-spacing: .1em; margin-bottom: 18px; }
.section h2 { font-size: clamp(2rem, 4.6vw, 3.6rem); font-weight: 700; }
.section__sub { margin-top: 18px; color: var(--muted); font-size: 1.05rem; }
.section__sub.mono { font-size: .85rem; }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); transition: border-color .3s, transform .3s, background .3s; }
.card:hover { border-color: var(--line-2); }

/* About */
.about { display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; }
.about__text p { color: var(--muted); }
.about__text p.big { font-family: var(--f-display); font-size: clamp(1.4rem, 2.4vw, 1.9rem); line-height: 1.25; color: var(--text); margin-bottom: 22px; letter-spacing: -0.01em; }
.meta { margin: 36px 0 0; display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.meta div { background: var(--bg-2); padding: 16px 18px; }
.meta dt { font-family: var(--f-mono); font-size: .68rem; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.meta dd { margin: 4px 0 0; font-weight: 500; }
.principles { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.principles li { display: flex; gap: 20px; padding: 22px 24px; border: 1px solid var(--line); border-radius: 14px; background: var(--card); transition: border-color .3s, transform .3s; }
.principles li:hover { border-color: var(--accent); transform: translateX(4px); }
.principles span { font-family: var(--f-mono); color: var(--accent); font-size: .8rem; padding-top: 4px; }
.principles h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 4px; }
.principles p { color: var(--muted); font-size: .95rem; }

/* Stack */
.stack { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.stack__card { padding: 28px; grid-column: span 1; grid-row: span 2; }
.stack__card--wide { grid-column: span 2; grid-row: span 1; }
.stack__card header { display: flex; justify-content: space-between; margin-bottom: 40px; }
.stack__card header .mono:first-child { color: var(--accent); }
.stack__card h3 { font-size: 1.6rem; font-weight: 700; margin-bottom: 10px; }
.stack__card p { color: var(--muted); max-width: 480px; }
.stack__stat { padding: 26px 28px; display: flex; flex-direction: column; gap: 6px; }
.stack__stat strong { font-family: var(--f-display); font-size: 2.8rem; line-height: 1; color: var(--accent); }
.stack__stat .mono { color: var(--muted); text-transform: uppercase; }
.meter { margin-top: auto; padding-top: 14px; }
.meter i { display: block; width: 0; transition: width 1.4s cubic-bezier(.2,.7,.2,1) .2s; height: 4px; border-radius: 4px; background: repeating-linear-gradient(90deg, var(--accent) 0 8px, transparent 8px 11px); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.chip { font-family: var(--f-mono); font-size: .75rem; padding: 6px 12px; border: 1px solid var(--line-2); border-radius: 999px; color: var(--text); background: var(--bg-2); transition: all .2s; }
.chip:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }

/* Services */
.services { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.service { padding: 28px 24px; display: flex; flex-direction: column; gap: 14px; min-height: 300px; }
.service:hover { border-color: var(--accent); transform: translateY(-4px); }
.service h3 { font-size: 1.35rem; font-weight: 600; margin-top: 30px; }
.service p { color: var(--muted); font-size: .94rem; }
.link { margin-top: auto; color: var(--accent); }
.link:hover { text-decoration: underline; text-underline-offset: 4px; }

/* Timeline */
.timeline { list-style: none; margin: 0; padding: 0 0 0 28px; position: relative; display: grid; gap: 18px; }
.timeline::before { content: ""; position: absolute; left: 6px; top: 8px; bottom: 8px; width: 1px; background: linear-gradient(var(--accent), var(--line) 60%); }
.commit { position: relative; }
.commit__dot { position: absolute; left: -28px; top: 28px; width: 13px; height: 13px; border-radius: 50%; border: 2px solid var(--line-2); background: var(--bg); }
.commit.is-current .commit__dot { border-color: var(--accent); background: var(--accent); box-shadow: 0 0 0 5px var(--accent-dim); }
.commit__body { padding: 24px 28px; }
.commit__body:hover { border-color: var(--line-2); background: #101215; }
.commit__top { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 12px; }
.commit__top .muted { margin-left: auto; }
.pill { font-size: .66rem; padding: 3px 9px; border-radius: 999px; background: var(--accent-dim); color: var(--accent); border: 1px solid rgba(198,255,61,.3); }
.commit h3 { font-size: 1.45rem; font-weight: 600; }
.commit p { margin-top: 6px; }
.commit ul { margin: 14px 0 0; padding: 0; list-style: none; display: grid; gap: 6px; }
.commit li { color: var(--muted); padding-left: 20px; position: relative; font-size: .95rem; }
.commit li::before { content: "+"; position: absolute; left: 0; color: var(--accent); font-family: var(--f-mono); }

.edu { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.edu__card { padding: 28px; }
.edu__card h3 { font-size: 1.35rem; font-weight: 600; margin: 18px 0 6px; }
.edu__card p { color: var(--muted); }

/* Projects */
.tabs { display: inline-flex; padding: 4px; border: 1px solid var(--line-2); border-radius: 999px; background: var(--bg-2); }
.tab { border: 0; background: transparent; padding: 10px 18px; border-radius: 999px; font-size: .88rem; color: var(--muted); transition: all .2s; }
.tab.is-active { background: var(--accent); color: #0a0b0c; font-weight: 500; }
.projects { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.project { overflow: hidden; display: flex; flex-direction: column; animation: rise .5s ease both; }
.project:nth-child(2) { animation-delay: .05s; } .project:nth-child(3) { animation-delay: .1s; } .project:nth-child(4) { animation-delay: .15s; } .project:nth-child(n+5) { animation-delay: .2s; }
.project:hover { border-color: var(--accent); transform: translateY(-4px); }
.project__body { padding: 24px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.project__top { display: flex; justify-content: space-between; }
.project h3 { font-size: 1.3rem; font-weight: 600; }
.project p { color: var(--muted); font-size: .93rem; }
.project .chips { margin-top: 4px; }
.project .link { padding-top: 8px; }
@keyframes rise { from { opacity: 0; transform: translateY(16px); } }

/* Contact */
.contact { padding-bottom: 120px; }
.contact__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; align-items: start; }
.contact__info { display: grid; }
.contact__row { display: grid; grid-template-columns: 110px 1fr auto; align-items: center; gap: 16px; padding: 22px 4px; border: 0; border-bottom: 1px solid var(--line); background: transparent; text-align: left; font-size: 1.05rem; transition: color .2s, padding .2s; word-break: break-word; }
.contact__row:first-child { border-top: 1px solid var(--line); }
a.contact__row:hover, .contact__row--btn:hover { color: var(--accent); padding-left: 10px; }
.arrow { color: var(--accent); }
.socials { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.socials a { padding: 9px 14px; border: 1px solid var(--line-2); border-radius: 999px; transition: all .2s; }
.socials a:hover { border-color: var(--accent); color: var(--accent); }
.form { overflow: hidden; }
.form__body { padding: 24px; display: grid; gap: 16px; }
.form label { display: grid; gap: 8px; font-family: var(--f-mono); font-size: .72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.form input, .form textarea { font: inherit; font-family: var(--f-body); font-size: 1rem; text-transform: none; letter-spacing: 0; color: var(--text); background: var(--bg-2); border: 1px solid var(--line-2); border-radius: 12px; padding: 14px 16px; outline: none; resize: vertical; transition: border-color .2s, box-shadow .2s; }
.form input:focus, .form textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-dim); }
.form__status { min-height: 1.2em; }
.form__status.ok { color: var(--accent); } .form__status.err { color: #ff7b72; }

.footer { border-top: 1px solid var(--line); padding: 28px 0; }
.footer__inner { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--muted); }
.footer a:hover { color: var(--accent); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1); }
.reveal.is-in { opacity: 1; transform: none; }
.hero .reveal:nth-child(2) { transition-delay: .08s; } .hero .reveal:nth-child(3) { transition-delay: .16s; } .hero .reveal:nth-child(4) { transition-delay: .24s; } .hero .reveal:nth-child(5) { transition-delay: .32s; } .hero .reveal:nth-child(6) { transition-delay: .4s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .services { grid-template-columns: repeat(2, 1fr); }
  .projects { grid-template-columns: repeat(2, 1fr); }
  .hero__grid { grid-template-columns: 1fr; }
  .hero__side { max-width: 480px; }
}
@media (max-width: 860px) {
  .nav__links, .nav__cta { display: none; }
  .nav__toggle { display: block; }
  .nav__mobile { max-width: var(--wrap); margin: 8px auto 0; display: grid; overflow: hidden; max-height: 0; border-radius: 22px; background: #0b0c0e; box-shadow: 0 30px 60px -20px rgba(0,0,0,.9); border: 1px solid transparent; transition: max-height .35s ease, border-color .3s; }
  .nav.is-open .nav__mobile { max-height: 420px; border-color: var(--line); }
  .nav__mobile a { padding: 14px 22px; border-bottom: 1px solid var(--line); font-family: var(--f-mono); font-size: .85rem; }
  .nav__mobile a:last-child { border-bottom: 0; }
  .about, .contact__grid, .edu { grid-template-columns: 1fr; }
  .stack { grid-template-columns: 1fr 1fr; }
  .stack__card, .stack__card--wide { grid-column: span 2; grid-row: auto; }
}
@media (max-width: 600px) {
  .wrap { padding: 0 16px; }
  .hero { padding-top: 120px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stats li:nth-child(3) { padding-left: 0; border-left: 0; }
  .services, .projects { grid-template-columns: 1fr; }
  .service { min-height: 0; }
  .service h3 { margin-top: 12px; }
  .stack__stat { padding: 20px; }
  .stack__stat strong { font-size: 2.1rem; }
  .hero__side .terminal { margin: -50px 0 0 12px; }
  .section { padding-top: 88px; }
  .meta { grid-template-columns: 1fr; }
  .contact__row { grid-template-columns: 1fr auto; font-size: .98rem; }
  .contact__row > .mono { grid-column: 1 / -1; }
  .commit__body { padding: 20px; }
  .commit__top .muted { margin-left: 0; width: 100%; }
  .tag { font-size: .62rem; }
}

/* ---------- Polish ---------- */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
.btn:focus-visible, .tab:focus-visible { border-radius: 999px; }
.photo picture { position: relative; display: block; width: 100%; height: 100%; }

/* Scroll progress */
.progress { position: fixed; top: 0; left: 0; height: 2px; width: 100%; background: var(--accent); transform-origin: 0 50%; transform: scaleX(0); z-index: 60; }

/* Cursor spotlight on cards */
.card { position: relative; isolation: isolate; }
.card::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; z-index: -1; opacity: 0; transition: opacity .3s;
  background: radial-gradient(380px circle at var(--mx, 50%) var(--my, 50%), rgba(198, 255, 61, 0.07), transparent 60%);
}
.card:hover::after { opacity: 1; }

/* Terminal typing */
.terminal__body .cursor { display: inline-block; width: .55em; height: 1.05em; vertical-align: -0.15em; background: var(--accent); animation: blink 1s steps(1) infinite; }
#term { min-height: 172px; }

/* Hero entrance for photo */
.hero__side .photo { transition: transform .6s cubic-bezier(.2,.7,.2,1); }
.hero__side:hover .photo { transform: translateY(-4px); }

/* =====================================================================
   v2: motion, case study, lab, WhatsApp
   ===================================================================== */
.hero__side .terminal { margin: -70px -18px 0 36px; }
.meter.is-in i { width: var(--w); }

/* Smooth scroll (Lenis) */
html.smooth-on { scroll-behavior: auto; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }
.lenis.lenis-stopped { overflow: hidden; }

/* Split-word heading reveal */
.split .w { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .12em; margin-bottom: -.12em; }
.split .w > span { display: inline-block; transform: translateY(110%) rotate(4deg); transform-origin: left bottom; transition: transform .95s cubic-bezier(.2,.75,.15,1) var(--d, 0s); }
.split.is-in .w > span { transform: none; }

/* Hero network canvas */
.hero { position: relative; }
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; mask-image: radial-gradient(120% 90% at 70% 40%, #000 30%, transparent 85%); -webkit-mask-image: radial-gradient(120% 90% at 70% 40%, #000 30%, transparent 85%); }
.hero > .wrap, .hero > .marquee { position: relative; z-index: 1; }

/* Photo orbit + tilt */
.photo { transition: transform .5s cubic-bezier(.2,.7,.2,1); will-change: transform; }
.photo picture { z-index: 1; }
.photo__chip { z-index: 2; }
.orbit { position: absolute; left: 50%; top: 56%; width: 82%; aspect-ratio: 1; border: 1px dashed rgba(198,255,61,.28); border-radius: 50%; z-index: 0; animation: orbit 38s linear infinite; }
.orbit i { position: absolute; width: 9px; height: 9px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 14px var(--accent); }
.orbit i:nth-child(1) { top: -4px; left: calc(50% - 4px); }
.orbit i:nth-child(2) { bottom: 12%; left: 5%; width: 6px; height: 6px; }
.orbit i:nth-child(3) { top: 28%; right: -3px; width: 7px; height: 7px; }
@keyframes orbit { from { transform: translate(-50%, -50%) rotate(0deg); } to { transform: translate(-50%, -50%) rotate(360deg); } }

/* Magnetic buttons + WhatsApp icon */
.magnetic { transition: transform .35s cubic-bezier(.2,.7,.2,1), background .2s, border-color .2s, color .2s; }
.magnetic.is-pulled { transition: transform .12s linear, background .2s, border-color .2s, color .2s; }
.wa-ico { width: 18px; height: 18px; flex: none; }

/* Cursor ring */
.cursor-ring { position: fixed; top: 0; left: 0; width: 34px; height: 34px; margin: -17px 0 0 -17px; border: 1px solid rgba(198,255,61,.55); border-radius: 50%; pointer-events: none; z-index: 90; opacity: 0; transition: opacity .3s, width .25s, height .25s, margin .25s, background .25s; }
.cursor-ring.is-on { opacity: 1; }
.cursor-ring.is-hover { width: 58px; height: 58px; margin: -29px 0 0 -29px; background: rgba(198,255,61,.06); border-color: rgba(198,255,61,.8); }

/* Floating WhatsApp button */
.wa-fab { position: fixed; right: 22px; bottom: 22px; z-index: 70; width: 58px; height: 58px; border-radius: 50%; display: grid; place-items: center; background: var(--accent); color: #0a0b0c; box-shadow: 0 14px 34px -10px rgba(198,255,61,.55); opacity: 0; transform: translateY(24px) scale(.85); pointer-events: none; transition: opacity .35s, transform .35s cubic-bezier(.2,.7,.2,1); }
.wa-fab svg { width: 28px; height: 28px; }
.wa-fab.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.wa-fab::after { content: ""; position: absolute; inset: 0; border-radius: 50%; border: 2px solid var(--accent); animation: ping 2.4s cubic-bezier(0,.6,.4,1) infinite; }
.wa-fab.is-visible:hover { transform: scale(1.07); }
@keyframes ping { from { transform: scale(1); opacity: .7; } to { transform: scale(1.7); opacity: 0; } }

.contact__row--wa span:nth-child(2) { color: var(--accent); font-weight: 500; }

/* Projects: featured */
.project--featured { border-color: rgba(198,255,61,.35); background: linear-gradient(180deg, rgba(198,255,61,.05), var(--card) 40%); }

/* ---------- Case study ---------- */
.case-stats { list-style: none; margin: 0 0 20px; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: var(--r); background: var(--bg-2); overflow: hidden; }
.case-stats li { padding: 22px 24px; }
.case-stats li + li { border-left: 1px solid var(--line); }
.case-stats strong { display: block; font-family: var(--f-display); font-size: 2.2rem; font-weight: 700; color: var(--accent); line-height: 1.1; }
.case-stats span { font-family: var(--f-mono); font-size: .7rem; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }

.flow { padding: 24px; display: grid; gap: 22px; overflow: hidden; }
.flow__top { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.flow__top .tab .mono { opacity: .55; margin-right: 4px; font-size: .7rem; }
.flow__status { display: inline-flex; align-items: center; gap: 8px; }
.flow__stage { display: grid; grid-template-columns: 1fr 250px; align-items: center; }
.flow__track { display: flex; align-items: center; min-width: 0; }
.flow__node { flex: 1 1 0; min-width: 0; position: relative; display: grid; gap: 4px; padding: 14px 14px 16px; border: 1px solid var(--line-2); border-radius: 14px; background: var(--bg-2); transition: border-color .3s, box-shadow .3s, transform .3s; }
.flow__node strong { font-family: var(--f-display); font-size: 1rem; font-weight: 600; line-height: 1.15; padding-right: 16px; }
.flow__node .mono { font-size: .64rem; letter-spacing: .02em; }
.flow__idx { color: var(--muted); }
.flow__state { position: absolute; top: 12px; right: 12px; width: 12px; height: 12px; border-radius: 50%; border: 2px solid var(--line-2); transition: background .3s, border-color .3s; }
.flow__node.is-running { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-dim), 0 0 40px -6px rgba(198,255,61,.35); transform: translateY(-3px); }
.flow__node.is-running .flow__state { border-color: var(--accent); border-top-color: transparent; animation: spin .7s linear infinite; }
.flow__node.is-done { border-color: rgba(198,255,61,.45); }
.flow__node.is-done .flow__idx { color: var(--accent); }
.flow__node.is-done .flow__state { background: var(--accent); border-color: var(--accent); box-shadow: 0 0 10px var(--accent); }
@keyframes spin { to { transform: rotate(360deg); } }
.flow__wire { flex: 0 0 26px; height: 2px; background: var(--line-2); position: relative; }
.flow__wire--out { flex-basis: 34px; }
.flow__wire::before { content: ""; position: absolute; inset: 0; background: var(--accent); transform: scaleX(0); transform-origin: left center; transition: transform .45s ease; }
.flow__wire.is-on::before { transform: scaleX(1); }
.flow__wire i { position: absolute; top: 50%; left: 0; width: 9px; height: 9px; margin: -4.5px 0 0 -4.5px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 14px 2px var(--accent); opacity: 0; }
.flow__wire.is-on i { animation: packet .5s ease-out forwards; }
@keyframes packet { 0% { left: 0; opacity: 1; } 85% { opacity: 1; } 100% { left: 100%; opacity: 0; } }
@keyframes packetV { 0% { top: 0; opacity: 1; } 85% { opacity: 1; } 100% { top: 100%; opacity: 0; } }
.flow__fan { display: grid; gap: 10px; padding: 6px 0 6px 16px; border-left: 2px solid var(--line-2); transition: border-color .4s; }
.flow.is-done .flow__fan { border-left-color: var(--accent); }
.flow__fanlist { display: grid; gap: 6px; }
.flow__chip { font-family: var(--f-mono); font-size: .72rem; padding: 7px 10px; border: 1px solid var(--line-2); border-radius: 8px; color: var(--muted); background: var(--bg-2); transition: all .3s; }
.flow__chip::before { content: "○ "; }
.flow__chip.is-on { color: var(--text); border-color: rgba(198,255,61,.5); background: var(--accent-dim); transform: translateX(4px); }
.flow__chip.is-on::before { content: "● "; color: var(--accent); }
.flow__log .terminal__body { height: 196px; overflow: auto; font-size: .74rem; line-height: 1.7; }
.flow__log .terminal__body::-webkit-scrollbar { width: 6px; }
.flow__log .terminal__body::-webkit-scrollbar-thumb { background: var(--line-2); border-radius: 6px; }

.case-notes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 16px; }
.case-notes .card { padding: 24px; }
.case-notes p { margin-top: 12px; color: var(--muted); font-size: .95rem; }
.case-chips { margin-top: 20px; }

/* ---------- Lab ---------- */
.lab { display: grid; grid-template-columns: 1.1fr 1fr; gap: 16px; align-items: stretch; }

.shell { display: flex; flex-direction: column; overflow: hidden; min-height: 480px; }
.shell__out { flex: 1; padding: 16px 18px; font-family: var(--f-mono); font-size: .8rem; line-height: 1.75; overflow-y: auto; max-height: 360px; min-height: 280px; overflow-wrap: anywhere; }
.shell__line + .shell__line { margin-top: 4px; }
.shell__form { display: flex; align-items: center; gap: 8px; padding: 12px 18px; border-top: 1px solid var(--line); flex-wrap: wrap; }
.shell__form label { font-size: .78rem; white-space: nowrap; }
.shell__in { flex: 1; min-width: 120px; background: transparent; border: 0; outline: none; color: var(--text); font-family: var(--f-mono); font-size: .85rem; caret-color: var(--accent); }
.shell__in:focus-visible { outline: none; }
.shell__hints { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 18px 16px; }
.shell__hints .chip { cursor: pointer; }

/* ---------- Responsive v2 ---------- */
@media (max-width: 1024px) {
  .flow__stage { grid-template-columns: 1fr; gap: 16px; }
  .flow__wire--out { display: none; }
  .flow__fan { border-left: 0; border-top: 2px solid var(--line-2); padding: 14px 0 0; }
  .flow.is-done .flow__fan { border-top-color: var(--accent); }
  .flow__fanlist { grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); }
  .lab { grid-template-columns: 1fr; }
}
@media (max-width: 860px) {
  .flow__track { flex-direction: column; align-items: stretch; }
  .flow__wire { flex: 0 0 22px; width: 2px; height: auto; align-self: center; }
  .flow__wire::before { transform: scaleY(0); transform-origin: center top; }
  .flow__wire.is-on::before { transform: scaleY(1); }
  .flow__wire i { left: 50%; top: 0; }
  .flow__wire.is-on i { animation-name: packetV; }
  .case-stats { grid-template-columns: 1fr 1fr; }
  .case-stats li:nth-child(3) { border-left: 0; }
  .case-stats li:nth-child(n+3) { border-top: 1px solid var(--line); }
  .case-notes { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .hero__side .terminal { margin: -50px 0 0 12px; }
  .flow { padding: 16px; }
  .flow__top .tabs { width: 100%; overflow-x: auto; }
  .flow__top .tab { white-space: nowrap; padding: 9px 12px; font-size: .8rem; }
  .wa-fab { right: 16px; bottom: 16px; width: 52px; height: 52px; }
  .case-stats strong { font-size: 1.8rem; }
  .case-stats li { padding: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  .split .w > span { transform: none; }
  .meter i { width: var(--w); }
}

.flow > *, .flow__stage > * { min-width: 0; }
.flow__track { align-items: stretch; }
.flow__track .flow__wire { align-self: center; }

/* =====================================================================
   v3: splash, AI architect, UX + mobile polish
   ===================================================================== */
[hidden] { display: none !important; }
.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; }
html.is-splashing, html.is-splashing body { overflow: hidden; }

/* ---------- Splash ---------- */
.splash { display: none; }
html.js:not(.no-splash) .splash { display: flex; }
.splash { position: fixed; inset: 0; z-index: 200; background: var(--bg); align-items: center; justify-content: center; padding: 24px; clip-path: inset(0 0 0 0); transition: clip-path 1s cubic-bezier(.77,0,.18,1); }
.splash.is-leaving { clip-path: inset(0 0 100% 0); }
.splash.is-leaving .splash__inner, .splash.is-leaving .splash__count { opacity: 0; transform: translateY(-30px); }
.splash__grid { position: absolute; inset: 0; background-image: linear-gradient(rgba(198,255,61,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(198,255,61,.05) 1px, transparent 1px); background-size: 48px 48px; mask-image: radial-gradient(60% 60% at 50% 50%, #000, transparent); -webkit-mask-image: radial-gradient(60% 60% at 50% 50%, #000, transparent); }
.splash__inner { position: relative; width: min(440px, 100%); display: grid; gap: 18px; transition: opacity .5s, transform .6s; }
.splash__logo { font-family: var(--f-mono); font-weight: 700; font-size: clamp(1.4rem, 5vw, 1.9rem); }
.splash__boot { margin: 0; min-height: 8.6em; font-family: var(--f-mono); font-size: .8rem; line-height: 1.75; color: var(--text); white-space: pre-wrap; }
.splash__bar { height: 2px; background: var(--line-2); overflow: hidden; border-radius: 2px; }
.splash__bar i { display: block; height: 100%; background: var(--accent); box-shadow: 0 0 12px var(--accent); transform: scaleX(0); transform-origin: left; }
.splash__meta { display: flex; justify-content: space-between; font-family: var(--f-mono); font-size: .7rem; letter-spacing: .1em; color: var(--muted); }
.splash__meta span:last-child { color: var(--accent); }
.splash__count { position: absolute; right: clamp(16px, 4vw, 48px); bottom: clamp(8px, 3vw, 24px); font-family: var(--f-display); font-weight: 800; font-size: clamp(5rem, 18vw, 13rem); line-height: 1; letter-spacing: -.05em; color: transparent; -webkit-text-stroke: 1px rgba(198,255,61,.35); transition: opacity .5s, transform .6s; pointer-events: none; }

/* ---------- Lab layout ---------- */
.lab { grid-template-columns: 1fr; }

/* ---------- AI Architect ---------- */
.arch { display: grid; grid-template-columns: 380px 1fr; overflow: hidden; }
.arch__panel { padding: 28px; display: grid; gap: 12px; align-content: start; border-right: 1px solid var(--line); background: linear-gradient(180deg, rgba(198,255,61,.04), transparent 60%); }
.arch__panel h3 { font-size: clamp(1.5rem, 2.6vw, 2rem); font-weight: 700; margin-top: 4px; }
.arch__panel > p { font-size: .95rem; }
.arch__form { display: grid; gap: 12px; margin-top: 8px; }
.arch__form textarea { font: inherit; font-size: 1rem; line-height: 1.5; color: var(--text); background: var(--bg-2); border: 1px solid var(--line-2); border-radius: 14px; padding: 14px 16px; resize: vertical; min-height: 120px; outline: none; transition: border-color .2s, box-shadow .2s; }
.arch__form textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-dim); }
.arch__examples { display: flex; flex-wrap: wrap; gap: 6px; }
.arch__examples .chip { cursor: pointer; }
.arch__note { font-size: .72rem; min-height: 1.2em; }
.arch__note.err { color: #ff7b72; }
.spark { display: inline-block; transition: transform .4s; }
.btn.is-loading .spark { animation: spin 1s linear infinite; }
.btn:hover .spark { transform: rotate(90deg) scale(1.2); }

.arch__stage { position: relative; padding: 28px; min-height: 460px; display: grid; align-content: start; min-width: 0; }
.arch__idle { display: grid; place-items: center; align-content: center; gap: 18px; min-height: 400px; text-align: center; }
.ghost { display: grid; gap: 10px; width: min(320px, 80%); }
.ghost i { display: block; height: 46px; border-radius: 12px; border: 1px dashed var(--line-2); background: linear-gradient(90deg, transparent, rgba(198,255,61,.06), transparent) 0 0 / 200% 100%; animation: shimmer 2.4s linear infinite; }
.ghost i:nth-child(2) { animation-delay: .2s; width: 88%; } .ghost i:nth-child(3) { animation-delay: .4s; width: 94%; } .ghost i:nth-child(4) { animation-delay: .6s; width: 80%; }
@keyframes shimmer { to { background-position: -200% 0; } }
.arch__log { min-height: 400px; margin: 0; font-size: .82rem; line-height: 1.9; padding: 0; overflow: hidden; }
.arch__result { display: grid; gap: 20px; animation: rise .5s ease both; }
.arch__head h4 { font-family: var(--f-display); font-size: clamp(1.4rem, 2.6vw, 1.9rem); font-weight: 700; margin: 6px 0; line-height: 1.1; }
.arch__head .mono { font-size: .7rem; color: var(--accent); letter-spacing: .06em; text-transform: uppercase; }
.arch__body { display: grid; grid-template-columns: 1fr 230px; gap: 22px; align-items: start; }
.arch__side { display: grid; gap: 16px; }
.arch__side .flow__fanlist { margin-top: 8px; }
.arch__side .chips { margin-top: 8px; }
.arch__side .chip { font-size: .68rem; padding: 4px 9px; }
.arch__metric { padding: 14px 16px; border: 1px solid var(--line); border-radius: 12px; background: var(--bg-2); }
.arch__metric strong { display: block; font-family: var(--f-display); font-size: 1.8rem; color: var(--accent); line-height: 1.1; }
.arch__metric .mono { font-size: .64rem; color: var(--muted); text-transform: uppercase; }

/* Vertical track (architect, and case study on phones) */
.flow__track--v { flex-direction: column; align-items: stretch; }
.flow__track--v .flow__wire { flex: 0 0 18px; width: 2px; height: auto; align-self: flex-start; margin-left: 26px; }
.flow__track--v .flow__wire::before { transform: scaleY(0); transform-origin: center top; }
.flow__track--v .flow__wire.is-on::before { transform: scaleY(1); }
.flow__track--v .flow__wire i { left: 50%; top: 0; }
.flow__track--v .flow__wire.is-on i { animation-name: packetV; }
.flow__track--v .flow__node { flex: none; grid-template-columns: auto 1fr; column-gap: 12px; align-items: baseline; padding: 12px 40px 12px 16px; }
.flow__track--v .flow__node .flow__idx { grid-row: span 2; }
.flow__track--v .flow__node .mono.muted { grid-column: 2; }
.flow__track--v .flow__node.is-running { transform: translateX(4px); }

/* Terminal thinking indicator */
.thinking::after { content: ""; animation: dots 1.2s steps(4) infinite; }
@keyframes dots { 0% { content: ""; } 25% { content: "."; } 50% { content: ".."; } 75% { content: "..."; } }

/* Avoid flicker when the case flow resets */
.flow.is-resetting * { transition: none !important; }

/* Projects: show-all button only on small screens */
.more-wrap { margin-top: 24px; }
.more-wrap:has(button[hidden]) { display: none; }
@media (min-width: 701px) { #moreProjects { display: none !important; } .more-wrap { display: none; } }
@media (max-width: 700px) { .projects.is-collapsed .project:nth-child(n+7) { display: none; } }

/* ---------- Global responsive polish ---------- */
.hero { min-height: 100vh; min-height: 100svh; }
@media (max-width: 1024px) {
  .hero__side { margin: 8px auto 0; width: 100%; }
  .arch { grid-template-columns: 1fr; }
  .arch__panel { border-right: 0; border-bottom: 1px solid var(--line); }
  .arch__stage { min-height: 0; }
  .arch__idle, .arch__log { min-height: 260px; }
}
@media (max-width: 860px) {
  .flow__track:not(.flow__track--v) .flow__node { padding: 12px 14px; }
  .nav__mobile a { padding: 16px 22px; }
}
@media (max-width: 700px) {
  .arch__body { grid-template-columns: 1fr; }
  .arch__side { grid-template-columns: 1fr 1fr; }
  .arch__side > div:nth-child(n+3) { grid-column: 1 / -1; }
  .arch__panel, .arch__stage { padding: 20px; }
  .shell { min-height: 0; }
  .shell__out { min-height: 220px; max-height: 300px; }
  .shell__in, .form input, .form textarea, .arch__form textarea { font-size: 16px; }
  .footer { padding-bottom: 92px; }
  .section__head--row .btn { width: 100%; }
  .hero__ctas .btn { flex: 1 1 auto; }
  .contact__row { padding: 18px 4px; }
  .principles li { padding: 18px; gap: 14px; }
  .stack__card { padding: 22px; }
  .stack__card header { margin-bottom: 24px; }
  .service h3 { margin-top: 8px; }
  .case-notes .card, .edu__card { padding: 20px; }
  .commit h3 { font-size: 1.2rem; }
  .cursor-ring { display: none; }
}
@media (max-width: 380px) {
  .hero__title { font-size: 2.2rem; }
  .stats strong { font-size: 1.5rem; }
  .tag { letter-spacing: .04em; }
  .shell__form label { display: none; }
}
@media (hover: none) {
  .principles li:hover, .service:hover, .project:hover { transform: none; }
}

/* Footer live clock */
.footer__inner { align-items: center; }
.clock { display: inline-flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: center; padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px; background: var(--bg-2); }
.clock__time { color: var(--text); font-size: .95rem; font-weight: 700; font-variant-numeric: tabular-nums; letter-spacing: .04em; min-width: 8ch; }
.clock .mono.muted { font-size: .68rem; }
.clock__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(198,255,61,.6); animation: pulse 2s infinite; flex: none; }
.clock__dot.is-away { background: #f5a524; animation: none; box-shadow: 0 0 10px rgba(245,165,36,.5); }
@media (max-width: 860px) { .footer__inner { flex-direction: column; text-align: center; gap: 14px; } .clock { order: -1; border-radius: 16px; } }