/* ════════════════════════════════════════════════════════════
   kevin-yin.com — v2
   Editorial / game-HUD hybrid. Archivo variable (wght+wdth),
   JetBrains Mono. Vanilla everything, zero dependencies.
   ════════════════════════════════════════════════════════════ */

:root {
  --bg: #060709;
  --bg-2: #0a0c12;
  --line: #1b1e27;
  --gold: #c8aa6e;
  --gold-deep: #785a28;
  --gold-hi: #f0e6d2;
  --teal: #0ac8b9;
  --txt: #e8e6e3;
  --mut: #8a8f9b;
  --dim: #565b66;
  --sans: "Archivo", "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, Consolas, monospace;
  --pad: clamp(20px, 5vw, 72px);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-io: cubic-bezier(0.65, 0, 0.35, 1);
}

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

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  background: var(--bg);
  color: var(--txt);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  font-weight: 380;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: rgba(200, 170, 110, 0.28); color: var(--gold-hi); }

.mono { font-family: var(--mono); }

a { color: inherit; text-decoration: none; }
:focus-visible { outline: 1px solid var(--gold); outline-offset: 4px; }

.skip-link {
  position: fixed; left: -9999px; top: 0; z-index: 300;
  background: var(--gold); color: var(--bg); padding: 10px 18px;
  font-family: var(--mono); font-size: 13px;
}
.skip-link:focus { left: 0; }

/* underline sweep links */
.u {
  position: relative; color: var(--gold);
  background: linear-gradient(var(--gold), var(--gold)) no-repeat 0 100% / 0 1px;
  transition: background-size 0.45s var(--ease-out), color 0.3s;
  padding-bottom: 2px;
}
.u:hover { background-size: 100% 1px; color: var(--gold-hi); }

/* ─────────── intro wipe ─────────── */

.intro {
  position: fixed; inset: 0; z-index: 200;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  transition: transform 0.8s var(--ease-io);
}
.intro.done { transform: translateY(-101%); }
.intro.gone { display: none; }
.intro-mark { display: flex; flex-direction: column; align-items: center; gap: 22px; }
.intro-hex {
  stroke-dasharray: 170; stroke-dashoffset: 170;
  animation: hexdraw 0.9s var(--ease-out) 0.05s forwards;
}
@keyframes hexdraw { to { stroke-dashoffset: 0; } }
.intro-word {
  font-size: 12px; letter-spacing: 0.6em; color: var(--gold);
  opacity: 0; animation: introword 0.6s ease 0.5s forwards;
}
@keyframes introword { to { opacity: 1; letter-spacing: 0.42em; } }

/* ─────────── custom cursor ─────────── */

.cursor-dot, .cursor-ring {
  position: fixed; top: 0; left: 0; z-index: 190;
  pointer-events: none; border-radius: 50%;
  transform: translate(-100px, -100px);
}
.cursor-dot { width: 5px; height: 5px; background: var(--gold-hi); }
.cursor-ring {
  width: 34px; height: 34px;
  border: 1px solid rgba(200, 170, 110, 0.55);
  transition: width 0.3s var(--ease-out), height 0.3s var(--ease-out),
    border-color 0.3s, background 0.3s;
}
.cursor-ring.on {
  width: 56px; height: 56px;
  border-color: var(--teal);
  background: rgba(10, 200, 185, 0.06);
}
@media (pointer: fine) {
  body.has-cursor, body.has-cursor a, body.has-cursor button { cursor: none; }
}
@media (pointer: coarse) { .cursor-dot, .cursor-ring { display: none; } }

/* ─────────── viewport frame + HUD ─────────── */

.vframe i {
  position: fixed; width: 16px; height: 16px; z-index: 90;
  border: 0 solid rgba(200, 170, 110, 0.35); pointer-events: none;
}
.vframe i:nth-child(1) { top: 14px; left: 14px; border-top-width: 1px; border-left-width: 1px; }
.vframe i:nth-child(2) { top: 14px; right: 14px; border-top-width: 1px; border-right-width: 1px; }
.vframe i:nth-child(3) { bottom: 14px; left: 14px; border-bottom-width: 1px; border-left-width: 1px; }
.vframe i:nth-child(4) { bottom: 14px; right: 14px; border-bottom-width: 1px; border-right-width: 1px; }

.hud {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 26px var(--pad) 18px;
  background: linear-gradient(180deg, rgba(6, 7, 9, 0.92) 30%, transparent);
  pointer-events: none;
}
.hud > * { pointer-events: auto; }
.hud-logo { display: inline-flex; align-items: center; gap: 12px; }
.hud-logo .mono { font-size: 12px; letter-spacing: 0.32em; color: var(--txt); }
.hud-logo svg { transition: transform 0.6s var(--ease-out); }
.hud-logo:hover svg { transform: rotate(120deg); }

.hud-nav { display: flex; gap: 30px; font-size: 11.5px; letter-spacing: 0.14em; }
.hud-nav a { color: var(--mut); transition: color 0.25s; }
.hud-nav a:hover, .hud-nav a[aria-current] { color: var(--gold-hi); }
.hud-nav a[aria-current]::before { content: "◆ "; color: var(--teal); font-size: 8px; vertical-align: 2px; }
.hud-cv { color: var(--gold) !important; }
.hud-cv:hover { color: var(--gold-hi) !important; }

.hud-b {
  position: fixed; left: var(--pad); right: var(--pad); bottom: 18px; z-index: 90;
  display: flex; justify-content: space-between;
  font-size: 10px; letter-spacing: 0.22em; color: var(--dim);
  pointer-events: none;
}
#hudPct { color: var(--gold); }

.burger {
  display: none; flex-direction: column; gap: 7px;
  background: none; border: none; padding: 10px; cursor: pointer;
}
.burger span { width: 26px; height: 1.5px; background: var(--gold); transition: transform 0.35s var(--ease-out); }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(4.25px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { transform: translateY(-4.25px) rotate(-45deg); }

.menu {
  position: fixed; inset: 0; z-index: 95;
  background: rgba(6, 7, 9, 0.97);
  display: flex; flex-direction: column; justify-content: center;
  padding: 0 var(--pad);
  clip-path: inset(0 0 100% 0);
  transition: clip-path 0.55s var(--ease-io);
}
.menu.open { clip-path: inset(0 0 0 0); }
.menu-links { display: flex; flex-direction: column; }
.menu-links a {
  font-size: clamp(2rem, 9vw, 3.4rem); font-weight: 700; font-stretch: 80%;
  letter-spacing: 0.01em; padding: 10px 0; color: var(--txt);
  border-bottom: 1px solid var(--line);
  display: flex; align-items: baseline; gap: 18px;
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.4s ease, transform 0.4s var(--ease-out), color 0.25s;
}
.menu.open .menu-links a { opacity: 1; transform: none; }
.menu-links a:hover { color: var(--gold); }
.menu-links i { font-style: normal; font-size: 12px; color: var(--teal); letter-spacing: 0.2em; }
.menu-foot { margin-top: 40px; font-size: 10px; letter-spacing: 0.3em; color: var(--dim); }

/* ─────────── hero ─────────── */

.hero {
  position: relative; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 0 var(--pad) 12vh;
  overflow: hidden;
}
#hexCanvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-grade {
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, rgba(6, 7, 9, 0.5), transparent 35%, transparent 55%, var(--bg));
}

.hero-name {
  position: relative; z-index: 2;
  font-weight: 780; font-stretch: 72%;
  font-size: clamp(4.2rem, 16.5vw, 15rem);
  line-height: 0.84; letter-spacing: -0.015em;
  text-transform: uppercase;
  margin-bottom: 5vh;
  pointer-events: none;
}
.hn-line { display: block; overflow: hidden; padding: 0.04em 0; }
.hn-line-2 { margin-left: clamp(28px, 12vw, 220px); }
.hn-outline {
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(200, 170, 110, 0.85);
  font-stretch: 95%; font-weight: 640;
}
/* per-letter spans injected by JS */
.ch-w { display: inline-block; overflow: hidden; vertical-align: top; }
.ch {
  display: inline-block;
  transform: translateY(120%) rotate(6deg);
  transition: transform 1s var(--ease-out);
  transition-delay: var(--d, 0s);
}
.in .ch { transform: none; }

.hero-meta { position: relative; z-index: 2; max-width: 560px; }
.hero-role { font-size: clamp(1rem, 1.6vw, 1.2rem); color: var(--txt); margin-bottom: 18px; }
.hero-status { font-size: 11.5px; letter-spacing: 0.2em; color: var(--teal); margin-bottom: 10px; }
.hero-hint { font-size: 10.5px; letter-spacing: 0.12em; color: var(--dim); }
.caret { display: inline-block; margin-left: 6px; animation: caret 1.1s steps(1) infinite; }
@keyframes caret { 50% { opacity: 0; } }

.reveal-l {
  opacity: 0; transform: translateY(22px); filter: blur(5px);
  transition: opacity 0.8s ease, transform 0.8s var(--ease-out), filter 0.8s ease;
  transition-delay: var(--d, 0s);
}
.in .reveal-l, .reveal-l.in { opacity: 1; transform: none; filter: none; }

.scroll-cue {
  position: absolute; right: var(--pad); bottom: 12vh; z-index: 2;
  writing-mode: vertical-rl;
  font-size: 10px; letter-spacing: 0.5em; color: var(--dim);
  display: flex; align-items: center; gap: 14px;
  transition: color 0.3s;
}
.scroll-cue:hover { color: var(--gold); }
.scroll-cue i {
  width: 1px; height: 64px; background: var(--line);
  position: relative; overflow: hidden; display: block;
}
.scroll-cue i::after {
  content: ""; position: absolute; left: 0; top: -40%;
  width: 100%; height: 40%; background: var(--gold);
  animation: cue 1.8s var(--ease-io) infinite;
}
@keyframes cue { to { top: 110%; } }

/* ─────────── sections / shared ─────────── */

.section { position: relative; padding: 16vh var(--pad) 10vh; }
.section-last { padding-bottom: 4vh; }

.ghost {
  position: absolute; top: 6vh; left: 0; z-index: 0;
  font-size: clamp(6rem, 22vw, 20rem); font-weight: 700;
  letter-spacing: 0.04em; white-space: nowrap;
  color: transparent; -webkit-text-stroke: 1px rgba(200, 170, 110, 0.09);
  pointer-events: none; user-select: none;
  will-change: transform;
}

.sec-head {
  position: relative; z-index: 1;
  display: flex; align-items: baseline; gap: 22px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 22px; margin-bottom: 8vh;
}
.sec-idx { font-size: 12px; letter-spacing: 0.3em; color: var(--teal); }
.sec-title {
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  font-weight: 700; font-stretch: 78%; letter-spacing: -0.01em;
  text-transform: uppercase; line-height: 1;
}
/* word-mask reveal (spans injected by JS) */
.w-w { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: 0.08em; }
.w {
  display: inline-block; transform: translateY(115%);
  transition: transform 0.9s var(--ease-out); transition-delay: var(--d, 0s);
}
.in .w { transform: none; }

.stackline { font-size: 10.5px; letter-spacing: 0.16em; color: var(--dim); line-height: 2; }

/* ─────────── 02 · work: sticky stack ─────────── */

.stack { position: relative; z-index: 1; }
.step { min-height: 102svh; display: flex; align-items: flex-start; }
.panel {
  position: sticky; top: 9vh;
  width: 100%;
  background: linear-gradient(165deg, #0b0d14, #080a0f);
  border: 1px solid var(--line);
  padding: clamp(26px, 4vw, 56px);
  will-change: transform;
  transform-origin: center top;
}
.panel::after { /* dimmer driven by scroll (–-cover set in JS) */
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: var(--bg); opacity: calc(var(--cover, 0) * 0.55);
  transition: opacity 0.1s linear;
}

.panel-top {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: clamp(20px, 3vh, 40px);
}
.panel-no {
  font-size: 12px; letter-spacing: 0.4em; color: var(--dim);
}
.live-tag {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 10.5px; letter-spacing: 0.26em; color: var(--teal);
}
.live-tag.gold { color: var(--gold); }
.live-tag.dim { color: var(--mut); }
.live-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--teal); animation: blip 2s ease infinite; }
@keyframes blip { 50% { opacity: 0.25; } }

.panel-grid {
  display: grid; grid-template-columns: 1.35fr 1fr; gap: clamp(28px, 4vw, 64px);
  align-items: center;
}
.panel-title {
  font-size: clamp(2.4rem, 5vw, 4.6rem);
  font-weight: 750; font-stretch: 75%; line-height: 0.95;
  text-transform: uppercase; letter-spacing: -0.01em;
  margin-bottom: 22px;
}
.u-big { transition: color 0.3s, letter-spacing 0.5s var(--ease-out); }
.u-big:hover { color: var(--gold); letter-spacing: 0.015em; }
.panel-desc { color: var(--mut); max-width: 520px; margin-bottom: 28px; }

.counters {
  list-style: none;
  display: grid; grid-template-columns: repeat(4, auto);
  justify-content: start; gap: 8px 40px;
  margin-bottom: 26px;
}
.counters b {
  display: block; font-weight: 720; font-stretch: 80%;
  font-size: clamp(1.5rem, 2.6vw, 2.3rem); line-height: 1.1;
  color: var(--gold-hi); font-variant-numeric: tabular-nums;
}
.counters .mono { font-size: 9.5px; letter-spacing: 0.2em; color: var(--dim); }

.panel-link {
  display: inline-flex; align-items: center; gap: 10px;
  margin-top: 26px; font-size: 12px; letter-spacing: 0.24em; color: var(--gold);
  transition: color 0.3s, gap 0.35s var(--ease-out);
}
.panel-link:hover { color: var(--gold-hi); gap: 18px; }
.panel-link i { font-style: normal; transition: transform 0.35s var(--ease-out); }

/* ladder mock */
.ladder {
  border: 1px solid var(--line); padding: clamp(20px, 2.5vw, 34px);
  display: flex; flex-direction: column; gap: 13px;
  background: rgba(6, 7, 9, 0.45);
}
.ladder-h { font-size: 10px; letter-spacing: 0.3em; color: var(--teal); margin-bottom: 6px; }
.l-row { display: grid; grid-template-columns: 18px 1fr 46px 34px; gap: 12px; align-items: center; }
.l-r { font-size: 11px; color: var(--dim); text-align: center; }
.l-r.g1 { color: var(--gold-hi); } .l-r.g2 { color: #b9c2cf; } .l-r.g3 { color: #b08d57; }
.l-bar { height: 5px; background: var(--line); position: relative; overflow: hidden; }
.l-bar::after {
  content: ""; position: absolute; inset: 0; width: var(--w);
  background: linear-gradient(90deg, var(--gold-deep), var(--gold));
  transform: scaleX(0); transform-origin: left;
  transition: transform 1.2s var(--ease-out); transition-delay: 0.15s;
}
.in .l-bar::after { transform: scaleX(1); }
.l-e { font-size: 11.5px; color: var(--txt); text-align: right; font-variant-numeric: tabular-nums; }
.l-d { font-size: 9.5px; text-align: right; }
.l-d.up { color: var(--teal); } .l-d.dn { color: #b3596a; }
.ladder-f { margin-top: 8px; font-size: 9px; letter-spacing: 0.14em; color: var(--dim); }

/* faux terminal art */
.panel-art { border-left: 1px solid var(--line); padding-left: clamp(20px, 3vw, 40px); }
.art-pre {
  font-size: clamp(10px, 1.05vw, 13px); line-height: 1.9;
  color: var(--mut); white-space: pre;
}
.art-pre::first-line { color: var(--teal); }

/* ─────────── 03 · experience ─────────── */

.xp { position: relative; z-index: 1; }
.xp-row { border-bottom: 1px solid var(--line); }
.xp-row:first-child { border-top: 1px solid var(--line); }
.xp-head {
  width: 100%; display: grid;
  grid-template-columns: 60px 1fr auto 60px;
  align-items: center; gap: 20px;
  padding: clamp(22px, 3.5vh, 38px) 0;
  background: none; border: none; color: inherit;
  text-align: left; cursor: pointer;
  transition: padding-left 0.4s var(--ease-out);
}
.xp-head:hover { padding-left: 14px; }
.xp-i { font-size: 12px; letter-spacing: 0.3em; color: var(--teal); }
.xp-role {
  font-size: clamp(1.4rem, 3.2vw, 2.4rem); font-weight: 680; font-stretch: 80%;
  text-transform: uppercase; letter-spacing: -0.005em; line-height: 1.1;
}
.xp-role em {
  display: block; font-style: normal; text-transform: none;
  font-family: var(--mono); font-size: 11px; font-weight: 400;
  letter-spacing: 0.2em; color: var(--mut); margin-top: 8px;
}
.xp-dates { font-size: 11px; letter-spacing: 0.2em; color: var(--dim); }
.xp-x { position: relative; width: 18px; height: 18px; justify-self: end; }
.xp-x::before, .xp-x::after {
  content: ""; position: absolute; background: var(--gold); inset: auto;
  transition: transform 0.45s var(--ease-out);
}
.xp-x::before { left: 0; top: 8px; width: 18px; height: 1.5px; }
.xp-x::after { left: 8px; top: 0; width: 1.5px; height: 18px; }
.open .xp-x::after { transform: rotate(90deg); }
.xp-body {
  display: grid; grid-template-rows: 0fr;
  transition: grid-template-rows 0.6s var(--ease-io);
}
.open .xp-body { grid-template-rows: 1fr; }
.xp-inner { overflow: hidden; }
.xp-list {
  list-style: none; max-width: 760px;
  padding: 0 0 10px 80px;
  display: grid; gap: 14px;
}
.xp-list li { color: var(--mut); padding-left: 20px; position: relative; }
.xp-list li::before {
  content: "◆"; position: absolute; left: 0; top: 2px;
  color: var(--gold-deep); font-size: 8px;
}
.xp-inner .stackline { padding: 6px 0 34px 80px; }

/* ─────────── 04 · capabilities ─────────── */

.marquees { margin: 0 calc(-1 * var(--pad)) 9vh; overflow: hidden; }
.marquee { overflow: hidden; white-space: nowrap; padding: 8px 0; }
.marquee-track {
  display: inline-flex; align-items: center; gap: 38px;
  font-size: clamp(2.4rem, 6vw, 4.8rem); font-weight: 700; font-stretch: 76%;
  letter-spacing: 0.02em; color: #1e222d;
  will-change: transform;
}
.marquee-track i { font-style: normal; font-size: 0.3em; color: var(--gold-deep); }
.marquee-track.outline-t {
  color: transparent; -webkit-text-stroke: 1px rgba(200, 170, 110, 0.28);
}

.caps {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: clamp(24px, 4vw, 60px);
}
.cap { border-top: 1px solid var(--line); padding-top: 26px; }
.cap-h { font-size: 11px; letter-spacing: 0.3em; color: var(--gold); margin-bottom: 16px; }
.cap p { color: var(--mut); font-size: 15.5px; }

/* ─────────── 05 · about ─────────── */

.about {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.1fr 1fr;
  gap: clamp(30px, 5vw, 80px); align-items: start;
}
.about-pull {
  position: sticky; top: 18vh;
  font-size: clamp(1.9rem, 3.8vw, 3.2rem);
  font-weight: 240; font-stretch: 88%; line-height: 1.25;
  color: var(--txt);
}
.about-pull .dly .w { transition-delay: calc(var(--d, 0s) + 0.25s); }
.about-body p { color: var(--mut); margin-bottom: 22px; max-width: 540px; }
.about-body strong { color: var(--txt); font-weight: 600; }
.about-facts { margin-top: 40px; border-top: 1px solid var(--line); }
.about-facts div {
  display: grid; grid-template-columns: 150px 1fr; gap: 16px;
  padding: 14px 0; border-bottom: 1px solid var(--line);
}
.about-facts dt { font-size: 10px; letter-spacing: 0.24em; color: var(--dim); }
.about-facts dd { font-size: 10.5px; letter-spacing: 0.14em; color: var(--txt); }

/* ─────────── 06 · contact ─────────── */

.contact {
  position: relative; z-index: 1;
  min-height: 62vh;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
}
.contact-lede { color: var(--mut); margin-bottom: 7vh; font-size: clamp(1rem, 1.5vw, 1.2rem); }
.mail { display: inline-block; will-change: transform; }
.mail-txt {
  display: block;
  font-size: clamp(3rem, 11vw, 9.5rem);
  font-weight: 780; font-stretch: 72%; line-height: 0.95;
  text-transform: uppercase; letter-spacing: -0.01em;
  color: var(--txt);
  transition: color 0.35s, letter-spacing 0.6s var(--ease-out);
  font-variant-numeric: tabular-nums;
}
.mail:hover .mail-txt { color: var(--gold); letter-spacing: 0.01em; }
.mail-sub {
  display: block; margin-top: 22px;
  font-size: 11px; letter-spacing: 0.3em; color: var(--dim);
  transition: color 0.35s;
}
.mail:hover .mail-sub { color: var(--teal); }
.socials { display: flex; gap: 44px; margin-top: 9vh; font-size: 11px; letter-spacing: 0.2em; }

.foot {
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  border-top: 1px solid var(--line);
  margin-top: 12vh; padding: 26px 0 40px;
  font-size: 10px; letter-spacing: 0.22em; color: var(--dim);
}

/* ─────────── responsive ─────────── */

@media (max-width: 1100px) {
  .panel-grid { grid-template-columns: 1fr; }
  .panel-art { border-left: none; border-top: 1px solid var(--line); padding: 24px 0 0; }
  .ladder { max-width: 520px; }
}

@media (max-width: 900px) {
  .hud-nav { display: none; }
  .burger { display: flex; }
  .hud-b, .vframe, .scroll-cue { display: none; }
  .step { min-height: 0; margin-bottom: 26px; display: block; }
  .panel { position: static; }
  .panel::after { display: none; }
  .caps { grid-template-columns: 1fr; }
  .about { grid-template-columns: 1fr; }
  .about-pull { position: static; }
  .counters { grid-template-columns: repeat(2, auto); }
  .xp-head { grid-template-columns: 34px 1fr auto 34px; gap: 12px; }
  .xp-list, .xp-inner .stackline { padding-left: 46px; }
  .foot { flex-direction: column; gap: 10px; text-align: center; }
  .hn-line-2 { margin-left: 8vw; }
}

/* ─────────── reduced motion ─────────── */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .intro { display: none; }
  .ch, .w, .reveal-l { transform: none !important; opacity: 1 !important; filter: none !important; }
  .l-bar::after { transform: scaleX(1); }
  .ghost { transform: none !important; }
}