/* ═══════════════════════════════════════════════════════
   ArtemyStudio — main.css
   Bebas Neue (display) + IBM Plex Mono (mono)
═══════════════════════════════════════════════════════ */

:root {
  --bg:       #080808;
  --surface:  #0f0f0f;
  --border:   #1a1a1a;
  --border-2: #282828;
  --text:     #e8e8e8;
  --muted:    #606060;
  --dim:      #333;
  --cyan:     #36c5f0;

  --ff-disp: 'Bebas Neue', sans-serif;
  --ff-mono: 'IBM Plex Mono', ui-monospace, monospace;

  --max:     1100px;
  --gut:     clamp(1rem, 4vw, 3rem);
  --sec-pad: clamp(4rem, 8vw, 9rem);
  --nav-h:   50px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--ff-mono);
  font-size: 13px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { background: none; border: none; cursor: pointer; font: inherit; color: inherit; }

/* ── Noise ─────────────────────────────────────────────── */
.noise {
  position: fixed; inset: 0; z-index: 999;
  pointer-events: none; opacity: 0.028;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px;
}

/* ── NAV ───────────────────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--gut);
  height: var(--nav-h);
  border-bottom: 1px solid var(--border);
  background: rgba(8,8,8,0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.nav__logo {
  font-family: var(--ff-mono);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.08em;
  flex-shrink: 0;
}
.nav__center { display: flex; gap: 1.8rem; }
.nav__center a {
  font-size: 11px; letter-spacing: 0.08em;
  color: var(--muted); transition: color 130ms;
}
.nav__center a:hover, .nav__active { color: var(--text) !important; }
.nav__dewos { color: var(--cyan) !important; }
.nav__right { display: flex; align-items: center; gap: 1rem; flex-shrink: 0; }
.lang-toggle {
  font-size: 10px; letter-spacing: 0.1em;
  color: var(--muted); border: 1px solid var(--border-2);
  padding: 3px 8px; transition: color 130ms, border-color 130ms;
  touch-action: manipulation;
}
.lang-toggle:hover { color: var(--text); border-color: var(--muted); }
.nav__gh { font-size: 11px; letter-spacing: 0.06em; color: var(--muted); transition: color 130ms; }
.nav__gh:hover { color: var(--text); }
.nav__burger {
  display: none; flex-direction: column; gap: 5px;
  padding: 8px; margin: -8px; /* bigger tap target */
  touch-action: manipulation;
}
.nav__burger span { display: block; width: 18px; height: 1.5px; background: var(--text); border-radius: 1px; transition: transform 220ms, opacity 220ms; }
.nav__burger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Mobile nav ────────────────────────────────────────── */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  z-index: 45;
  background: rgba(8,8,8,0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0.5rem var(--gut) 1rem;
  flex-direction: column;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--border);
  color: var(--muted); font-size: 13px;
  letter-spacing: 0.06em;
  min-height: 48px; display: flex; align-items: center;
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a:hover, .mobile-nav a:active { color: var(--text); }

/* ── HERO ──────────────────────────────────────────────── */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gut);
  display: grid;
  min-height: 100svh;
  padding-top: calc(var(--nav-h) + 4rem);
  padding-bottom: 3rem;
  grid-template-rows: auto 1fr auto auto;
}
.hero__meta {
  display: flex; justify-content: space-between;
  color: var(--muted); font-size: 10px;
  letter-spacing: 0.16em; text-transform: uppercase;
  margin-bottom: 2.5rem; padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.hero__title {
  display: flex; flex-direction: column;
  font-family: var(--ff-disp);
  font-size: clamp(4.2rem, 17vw, 15rem);
  line-height: 0.88; letter-spacing: 0.01em;
  align-self: center; overflow: hidden;
}
.hero__word {
  display: block;
  transform: translateY(110%);
  animation: wordUp 0.75s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.hero__word:nth-child(1) { animation-delay: 0.05s; }
.hero__word:nth-child(2) { animation-delay: 0.18s; }
.hero__word:nth-child(3) { animation-delay: 0.30s; }
.hero__word--dim { color: var(--dim); }
@keyframes wordUp { to { transform: translateY(0); } }

.hero__floor {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end; gap: 1.5rem;
  margin-top: 2.5rem; padding-top: 1.2rem;
  border-top: 1px solid var(--border);
}
.hero__desc { color: var(--muted); font-size: 12px; line-height: 1.85; max-width: 460px; }
.hero__tags { display: flex; flex-wrap: wrap; gap: 0.35rem; justify-content: flex-end; }
.hero__tags span {
  font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--muted); border: 1px solid var(--border-2); padding: 4px 8px;
}
.hero__github {
  display: block; margin-top: 1.2rem;
  font-size: 10px; letter-spacing: 0.12em;
  color: var(--muted); text-transform: uppercase;
  opacity: 0; animation: fadeIn 0.8s 0.7s ease forwards;
  transition: color 130ms;
  min-height: 44px; display: flex; align-items: center;
}
.hero__github:hover { color: var(--text); }
@keyframes fadeIn { to { opacity: 1; } }

/* ── Rule ──────────────────────────────────────────────── */
.rule {
  display: flex; align-items: center; justify-content: space-between;
  max-width: var(--max); margin: var(--sec-pad) auto 0;
  padding: 0 var(--gut); color: var(--dim);
  font-size: 9px; letter-spacing: 0.22em; text-transform: uppercase;
  border-top: 1px solid var(--border); padding-top: 1rem;
}

/* ── Section scaffold ──────────────────────────────────── */
.section {
  display: grid; grid-template-columns: 72px 1fr;
  gap: 3rem; max-width: var(--max);
  margin: 0 auto; padding: 3.5rem var(--gut) var(--sec-pad);
}
.section__num { font-size: 9px; letter-spacing: 0.22em; color: var(--dim); padding-top: 0.6rem; }
.section__body h2 {
  font-family: var(--ff-disp);
  font-size: clamp(2.6rem, 7vw, 6rem);
  line-height: 0.9; letter-spacing: 0.01em; margin-bottom: 2.5rem;
}

/* ── Prose ─────────────────────────────────────────────── */
.prose { display: flex; flex-direction: column; gap: 1.1rem; max-width: 660px; }
.prose p { color: var(--muted); font-size: 13px; line-height: 1.85; }

/* ── Projects ──────────────────────────────────────────── */
.projects { display: flex; flex-direction: column; }
.project {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 2.5rem; align-items: start;
  border-top: 1px solid var(--border); padding: 2.2rem 0;
}
.project:last-child { border-bottom: 1px solid var(--border); }
.project__head {
  display: flex; align-items: baseline;
  gap: 0.9rem; margin-bottom: 0.8rem; flex-wrap: wrap;
}
.project__n { font-size: 9px; letter-spacing: 0.18em; color: var(--dim); }
.project__head h3 { font-family: var(--ff-disp); font-size: 2.4rem; letter-spacing: 0.02em; line-height: 1; }
.project__cta {
  margin-left: auto; font-size: 10px; letter-spacing: 0.1em;
  color: var(--cyan); border: 1px solid rgba(54,197,240,0.25);
  padding: 4px 10px; transition: background 140ms, border-color 140ms;
  min-height: 36px; display: inline-flex; align-items: center;
}
.project__cta:hover { background: rgba(54,197,240,0.08); border-color: var(--cyan); }
.project__left > p { color: var(--muted); font-size: 12px; line-height: 1.8; margin-bottom: 1rem; }
.project__pills { display: flex; flex-wrap: wrap; gap: 0.3rem; }
.project__pills span {
  font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted); border: 1px solid var(--border-2); padding: 3px 7px;
}
.project__code pre {
  background: var(--surface); border: 1px solid var(--border);
  padding: 1rem 1.2rem; font-size: 11px; line-height: 1.82;
  overflow-x: auto; white-space: pre;
}
.project__code code { color: #b0b0b0; }
.c-dim { color: var(--muted); }

/* ── Stack ─────────────────────────────────────────────── */
.stack { display: flex; flex-direction: column; }
.stack__row {
  display: grid; grid-template-columns: 130px 1fr 220px;
  align-items: center; gap: 1.5rem;
  padding: 0.85rem 0; border-top: 1px solid var(--border);
  opacity: 0; transform: translateY(8px);
  transition: opacity 380ms ease, transform 380ms ease;
}
.stack__row:last-child { border-bottom: 1px solid var(--border); }
.stack__row.visible { opacity: 1; transform: none; }
.stack__lang { font-size: 11px; font-weight: 500; letter-spacing: 0.04em; }
.stack__bar { height: 1px; background: var(--border-2); }
.stack__fill {
  height: 1px; width: var(--w); background: var(--text);
  transform-origin: left; transform: scaleX(0);
  transition: transform 650ms cubic-bezier(0.4, 0, 0.2, 1);
}
.stack__row.visible .stack__fill { transform: scaleX(1); }
.stack__note { font-size: 10px; color: var(--muted); letter-spacing: 0.03em; text-align: right; }

/* ── Contact ───────────────────────────────────────────── */
.contact { max-width: var(--max); margin: 0 auto; padding: 3.5rem var(--gut) calc(var(--sec-pad) * 1.4); }
.contact__inner { opacity: 0; transform: translateY(14px); transition: opacity 550ms ease, transform 550ms ease; }
.contact__inner.visible { opacity: 1; transform: none; }
.contact__label { font-size: 9px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--dim); margin-bottom: 1.4rem; }
.contact__link {
  display: inline-flex; align-items: baseline; gap: 0.4rem;
  font-family: var(--ff-disp);
  font-size: clamp(2rem, 8vw, 6.5rem);
  line-height: 0.9; letter-spacing: 0.01em;
  border-bottom: 1px solid var(--dim); padding-bottom: 0.2rem;
  transition: border-color 180ms, color 180ms;
}
.contact__link:hover { border-color: var(--text); }
.contact__arr { font-family: var(--ff-mono); font-size: 0.35em; color: var(--muted); }

/* ── Palette ───────────────────────────────────────────── */
.palette { position: fixed; inset: 0; z-index: 200; display: none; }
.palette.open { display: block; }
.palette__bg { position: absolute; inset: 0; background: rgba(0,0,0,0.72); backdrop-filter: blur(4px); }
.palette__box {
  position: relative;
  width: min(580px, calc(100% - 1.5rem));
  margin: 10vh auto 0;
  background: var(--surface); border: 1px solid var(--border-2);
}
.palette__prompt { display: flex; align-items: center; border-bottom: 1px solid var(--border); padding: 0 1rem; }
.palette__caret { color: var(--muted); font-size: 14px; margin-right: 0.5rem; flex-shrink: 0; }
.palette__box input {
  flex: 1; background: transparent; border: none; outline: none;
  padding: 0.9rem 0; color: var(--text); font-family: var(--ff-mono); font-size: 13px;
}
.palette__box input::placeholder { color: var(--dim); }
#paletteList { padding: 0.4rem; }
.palette-item {
  display: flex; justify-content: space-between; align-items: center;
  width: 100%; padding: 0.7rem 0.8rem; text-align: left;
  font-family: var(--ff-mono); font-size: 12px; color: var(--muted);
  transition: background 110ms, color 110ms;
  min-height: 44px;
}
.palette-item:hover, .palette-item:focus { background: var(--border); color: var(--text); }
.palette-item small { font-size: 10px; color: var(--dim); letter-spacing: 0.06em; }
.palette__foot { padding: 0.5rem 1rem; border-top: 1px solid var(--border); font-size: 9px; color: var(--dim); letter-spacing: 0.08em; }
.palette__foot kbd { font-family: var(--ff-mono); border: 1px solid var(--border-2); padding: 1px 5px; font-size: 8px; }

/* ── Reveal ────────────────────────────────────────────── */
[data-reveal] { opacity: 0; transform: translateY(14px); transition: opacity 480ms ease, transform 480ms ease; }
[data-reveal].visible { opacity: 1; transform: none; }

/* ── Misc ──────────────────────────────────────────────── */
::selection { background: var(--text); color: var(--bg); }
::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-2); }

/* ══════════════════════════════════════════════════════════
   RESPONSIVE — mobile first, built for iPhone 16 (390×844)
══════════════════════════════════════════════════════════ */

/* 900px — tablet/small laptop */
@media (max-width: 900px) {
  .nav__center { display: none; }
  .nav__burger { display: flex; }

  .project { grid-template-columns: 1fr; gap: 1.4rem; }
  .stack__row { grid-template-columns: 100px 1fr; }
  .stack__note { display: none; }
}

/* 640px — large phone */
@media (max-width: 640px) {
  :root { --gut: 1.1rem; --sec-pad: 3.5rem; }

  .section { grid-template-columns: 1fr; gap: 1.2rem; padding: 2.5rem var(--gut) var(--sec-pad); }
  .section__num { display: none; }
  .section__body h2 { font-size: clamp(2.4rem, 12vw, 4rem); margin-bottom: 1.5rem; }

  .hero { padding-top: calc(var(--nav-h) + 2.5rem); padding-bottom: 2rem; }
  .hero__title { font-size: clamp(3.8rem, 17vw, 7rem); }
  .hero__floor { grid-template-columns: 1fr; gap: 1rem; }
  .hero__tags { justify-content: flex-start; }
  .hero__meta { font-size: 9px; }

  .project__code pre { font-size: 10px; overflow-x: auto; -webkit-overflow-scrolling: touch; }

  .contact__link { font-size: clamp(1.8rem, 12vw, 3.5rem); word-break: break-all; }

  .rule { font-size: 8px; }
}

/* 430px — iPhone 16 Pro Max width */
@media (max-width: 430px) {
  :root { --gut: 0.9rem; }

  .hero__title { font-size: clamp(3.4rem, 16vw, 5.5rem); }
  .hero__meta { flex-direction: column; gap: 0.3rem; }

  .project { padding: 1.5rem 0; }
  .project__head h3 { font-size: 2rem; }

  .stack__row { grid-template-columns: 90px 1fr; gap: 1rem; padding: 0.75rem 0; }
  .stack__lang { font-size: 10px; }

  .palette__box { margin-top: 5vh; }
}

/* 390px — iPhone 16 / 15 exact */
@media (max-width: 390px) {
  :root { --gut: 0.8rem; }
  .hero__title { font-size: clamp(3rem, 15.5vw, 4.8rem); }
  .project__head { flex-direction: column; gap: 0.4rem; }
  .project__cta { margin-left: 0; }
}