/* ==========================================================
   Surajak Chansamrit — pixel resume
   Pixel-art accents, clean modern layout. Dark + light themes.
   ========================================================== */
:root {
  --px: 3px;
  --bg: #0a0e1c;
  --bg2: #0f1530;
  --card: #121937;
  --line: #27326a;
  --text: #e9edff;
  --muted: #9ba8d9;
  --accent: #4de1ff;
  --accent-ink: #04222b;
  --accent-dark: #1b8fae;
  --mint: #7cffb2;
  --amber: #ffcc4d;
  --pink: #ff6b9d;
  --dot: rgba(120, 140, 255, .16);
  --glow: rgba(77, 225, 255, .18);
  --font-body: 'Inter', 'Noto Sans Thai', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-head: 'Pixelify Sans', 'Noto Sans Thai', 'Inter', system-ui, sans-serif;
  --font-px: 'Press Start 2P', 'Noto Sans Thai', ui-monospace, monospace;
  color-scheme: dark;
}
:root[data-theme="light"] {
  --bg: #f2f5ff;
  --bg2: #e7edff;
  --card: #ffffff;
  --line: #c7d1ff;
  --text: #131a3b;
  --muted: #545f92;
  --accent: #0b78a8;
  --accent-ink: #ffffff;
  --accent-dark: #075677;
  --mint: #0b8f5a;
  --amber: #b97900;
  --pink: #d63a78;
  --dot: rgba(60, 80, 200, .13);
  --glow: rgba(11, 120, 168, .12);
  color-scheme: light;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { background: var(--bg); scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0; color: var(--text);
  font: 400 1rem/1.7 var(--font-body);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image: radial-gradient(var(--dot) 1.2px, transparent 1.4px);
  background-size: 24px 24px;
}
img, svg, canvas { max-width: 100%; }
a { color: var(--accent); }
h1, h2, h3 { font-family: var(--font-head); font-weight: 700; line-height: 1.15; margin: 0; }
p { margin: 0 0 1rem; }
ul { margin: 0; padding: 0; list-style: none; }
.pixel { font-family: var(--font-px); letter-spacing: .02em; }
.wrap { width: min(1120px, 100% - 40px); margin-inline: auto; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--accent-ink); padding: .5rem 1rem; z-index: 100; }
.skip:focus { left: 8px; }
:focus-visible { outline: 3px dashed var(--accent); outline-offset: 3px; }

/* ---- pixel frame (notched corners, no images) ---- */
.px {
  background: var(--card); margin: var(--px);
  box-shadow: 0 calc(var(--px) * -1) 0 0 var(--line), 0 var(--px) 0 0 var(--line),
    calc(var(--px) * -1) 0 0 0 var(--line), var(--px) 0 0 0 var(--line);
  transition: box-shadow .2s, transform .2s;
}

/* ---- buttons ---- */
.btn {
  --btn: var(--accent); --btn-dark: var(--accent-dark);
  display: inline-flex; align-items: center; gap: .5rem; cursor: pointer; text-decoration: none;
  background: var(--btn); color: var(--accent-ink); border: 0; margin: 3px 3px 9px;
  padding: .85rem 1.25rem; font: 700 .72rem/1.3 var(--font-px);
  box-shadow: 0 -3px 0 var(--btn), -3px 0 0 var(--btn), 3px 0 0 var(--btn), 0 6px 0 var(--btn-dark);
  transition: transform .1s, box-shadow .1s, filter .15s;
}
.btn:hover { transform: translateY(-2px); filter: brightness(1.08); }
.btn:active { transform: translateY(3px); box-shadow: 0 -3px 0 var(--btn), -3px 0 0 var(--btn), 3px 0 0 var(--btn), 0 3px 0 var(--btn-dark); }
.btn.ghost { --btn: var(--card); --btn-dark: var(--line); color: var(--text); }
.btn.small { font-size: .62rem; padding: .65rem .9rem; margin-top: .4rem; }
:root[data-theme="light"] .btn.ghost { box-shadow: 0 -3px 0 var(--line), -3px 0 0 var(--line), 3px 0 0 var(--line), 0 6px 0 var(--line); }

/* ---- nav ---- */
.nav { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(12px); background: color-mix(in srgb, var(--bg) 82%, transparent); border-bottom: 2px solid var(--line); }
.nav-in { display: flex; align-items: center; gap: 1rem; min-height: 62px; }
.brand { display: flex; align-items: center; gap: .6rem; text-decoration: none; color: var(--text); font-size: .9rem; }
.links { display: flex; gap: .2rem; margin-left: auto; }
.links a { color: var(--muted); text-decoration: none; padding: .45rem .75rem; font-size: .9rem; font-weight: 500; border-bottom: 3px solid transparent; transition: color .15s, border-color .15s; }
.links a:hover, .links a.act { color: var(--text); border-color: var(--accent); }
.tools { display: flex; gap: .5rem; }
.tool { font: 700 .72rem/1 var(--font-px); color: var(--text); background: var(--card); border: 2px solid var(--line); padding: .6rem .7rem; cursor: pointer; }
.tool:hover { border-color: var(--accent); }
.tool .on { color: var(--accent); }
.tool.menu { display: none; }

/* ---- hero ---- */
.hero { position: relative; padding: 2.4rem 0 3rem; }
.hero::before { content: ""; position: absolute; inset: -20% 0 auto; height: 520px; z-index: -1; background: radial-gradient(60% 60% at 30% 30%, var(--glow), transparent 70%); }
.kicker { display: inline-flex; align-items: center; gap: .6rem; font-size: .62rem; color: var(--mint); margin-bottom: 1.2rem; }
.dot { width: 9px; height: 9px; background: var(--mint); display: inline-block; animation: blink 1.4s steps(2) infinite; }
@keyframes blink { 50% { opacity: .25; } }
.hero h1 { font-size: clamp(2.3rem, 7vw, 4.6rem); letter-spacing: -.01em; }
.hl { color: var(--accent); text-shadow: 4px 4px 0 var(--line); }
.cursor { display: inline-block; width: .38em; height: .8em; margin-left: .12em; background: var(--accent); vertical-align: baseline; animation: blink 1s steps(2) infinite; }
.role { font: 600 clamp(1.05rem, 2.3vw, 1.5rem)/1.3 var(--font-head); color: var(--text); margin: 1.1rem 0 .6rem; }
.lead { max-width: 60ch; color: var(--muted); font-size: 1.06rem; }
.cta { display: flex; flex-wrap: wrap; gap: .5rem .8rem; margin: 1.2rem 0 2rem; }
.cta.center { justify-content: center; margin: 1rem 0 .4rem; }

/* ---- arcade ---- */
.arcade { margin-top: .5rem; }
.hud { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: .6rem 1rem; font: .6rem/1 var(--font-px); color: var(--muted); padding: 0 .3rem .8rem; }
#hudCoins b, #hudLevel b { color: var(--amber); font-weight: 400; }
.hud-btn { font: inherit; color: var(--muted); background: transparent; border: 2px solid var(--line); padding: .5rem .6rem; cursor: pointer; }
.hud-btn[aria-pressed="true"] { color: var(--mint); border-color: var(--mint); }
.screen { position: relative; margin: 0 auto; background: #000; outline: none; max-width: 100%;
  box-shadow: 0 -4px 0 0 var(--accent), 0 4px 0 0 var(--accent), -4px 0 0 0 var(--accent), 4px 0 0 0 var(--accent), 0 14px 40px -8px var(--glow); }
.screen:focus-visible { outline: 3px dashed var(--accent); outline-offset: 10px; }
.screen canvas { display: block; width: 100%; height: 100%; image-rendering: pixelated; image-rendering: crisp-edges; image-rendering: pixelated; touch-action: none; }
.start-overlay { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 1rem;
  background: linear-gradient(rgba(6, 9, 26, .55), rgba(6, 9, 26, .78)); color: #eaf0ff; }
.start-overlay .title { font-size: clamp(1rem, 3.2vw, 2rem); color: #4de1ff; text-shadow: 3px 3px 0 #1b2560; margin-bottom: .8rem; }
.start-overlay .sub { color: #c5d0ff; max-width: 42ch; font-size: clamp(.8rem, 1.6vw, 1rem); margin-bottom: .2rem; }
.start-overlay .btn.ghost { --btn: #121937; --btn-dark: #27326a; color: #eaf0ff; }
.stage-card { position: absolute; top: 10px; left: 10px; width: min(420px, calc(100% - 20px)); padding: .8rem 1rem .9rem; color: #eef2ff; font-size: .85rem; line-height: 1.5;
  background: rgba(8, 12, 32, .9); backdrop-filter: blur(6px); border: 2px solid var(--c, #4de1ff); animation: pop .18s steps(4); }
.arcade > .stage-card { position: relative; top: auto; left: auto; width: auto; margin: 16px 3px 0; }
@keyframes pop { from { transform: translateY(-8px); opacity: 0; } }
.stage-card .c-lv { font: .55rem/1 var(--font-px); color: var(--c, #4de1ff); margin-bottom: .5rem; }
.stage-card h3 { font-size: 1.1rem; margin-bottom: .1rem; }
.stage-card .c-org { color: #a9b6ee; margin: 0 0 .5rem; font-size: .8rem; }
.stage-card ul { display: grid; gap: .25rem; margin-bottom: .55rem; }
.stage-card li { padding-left: 1rem; position: relative; }
.stage-card li::before { content: ""; position: absolute; left: 0; top: .5em; width: 6px; height: 6px; background: var(--c, #4de1ff); }
.stage-card a { color: var(--c, #4de1ff); font-weight: 600; font-size: .8rem; }
.touch { position: absolute; left: 0; right: 0; bottom: 8px; display: none; justify-content: space-between; padding: 0 10px; pointer-events: none; }
.touch div { display: flex; gap: 10px; }
.touch button { pointer-events: auto; width: 58px; height: 58px; font: 1.1rem var(--font-px); color: #fff; background: rgba(8, 12, 32, .55); border: 2px solid rgba(255, 255, 255, .55); touch-action: none; user-select: none; -webkit-user-select: none; }
.touch button.on { background: rgba(77, 225, 255, .55); }
@media (pointer: coarse) { .touch.live { display: flex; } }
.chips { display: flex; flex-wrap: wrap; justify-content: center; gap: .5rem; margin-top: 1.4rem; }
.chip { display: inline-flex; flex-direction: column; align-items: center; gap: .2rem; cursor: pointer; font: inherit; color: var(--text); background: var(--card); border: 2px solid var(--line); padding: .5rem .9rem; min-width: 96px; transition: border-color .15s, transform .1s; }
.chip:hover { border-color: var(--c, var(--accent)); transform: translateY(-2px); }
.chip .y { font: .58rem/1 var(--font-px); color: var(--c, var(--accent)); }
.chip .n { font-size: .82rem; font-weight: 600; }
.chip.act { border-color: var(--c, var(--accent)); box-shadow: 0 0 0 2px var(--c, var(--accent)) inset; }
.chip.done .y::after { content: " ✓"; }
.hint { text-align: center; color: var(--muted); font-size: .8rem; margin: 1rem 0 0; }

/* ---- sections ---- */
.sec { padding: clamp(3.2rem, 8vw, 6rem) 0; }
.sec.alt { background: var(--bg2); border-block: 2px solid var(--line); }
.sec-head { display: flex; flex-wrap: wrap; align-items: baseline; gap: .5rem 1rem; margin-bottom: 2.2rem; }
.sec-head h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
.idx { color: var(--accent); font-size: .7rem; padding: .35rem .5rem; border: 2px solid var(--accent); }
.sub-note { color: var(--muted); margin: 0 0 0 auto; font-size: .9rem; }

.about { display: grid; grid-template-columns: 1.15fr 1fr; gap: 2.4rem; align-items: start; }
.about-text p { font-size: 1.08rem; color: var(--text); }
.about-text strong { color: var(--accent); font-weight: 600; }
.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.1rem; }
.stat { padding: 1.2rem 1rem; }
.stat-n { font-size: clamp(1.4rem, 3.2vw, 2rem); color: var(--accent); margin-bottom: .6rem; }
.stat p { margin: 0; color: var(--muted); font-size: .85rem; line-height: 1.4; }

/* timeline */
.timeline { position: relative; display: grid; gap: 1.6rem; padding-left: 38px; }
.timeline::before { content: ""; position: absolute; left: 11px; top: 8px; bottom: 8px; width: 4px;
  background: repeating-linear-gradient(to bottom, var(--line) 0 8px, transparent 8px 14px); }
.quest { position: relative; padding: 1.4rem 1.5rem 1.3rem; margin-left: 0; }
.quest .node { position: absolute; left: -35px; top: 1.6rem; width: 18px; height: 18px; background: var(--c); box-shadow: 0 0 0 4px var(--bg2), 0 0 0 7px var(--c); }
.quest:hover { box-shadow: 0 calc(var(--px) * -1) 0 0 var(--c), 0 var(--px) 0 0 var(--c), calc(var(--px) * -1) 0 0 0 var(--c), var(--px) 0 0 0 var(--c); transform: translateX(3px); }
.q-head { display: flex; flex-wrap: wrap; align-items: center; gap: .6rem 1rem; margin-bottom: .6rem; }
.lv { font-size: .58rem; color: #0a0e1c; background: var(--c); padding: .4rem .5rem; }
.date { color: var(--muted); font-size: .85rem; font-weight: 500; }
.quest h3 { font-size: clamp(1.15rem, 2.3vw, 1.5rem); }
.org { color: var(--c); font-weight: 600; margin: .2rem 0 1rem; }
:root[data-theme="light"] .org { filter: brightness(.78); }
.quest ul { display: grid; gap: .55rem; margin-bottom: 1rem; }
.quest li { position: relative; padding-left: 1.3rem; }
.quest li::before { content: ""; position: absolute; left: 0; top: .62em; width: 7px; height: 7px; background: var(--c); }
.quest li b { color: var(--text); background: color-mix(in srgb, var(--c) 22%, transparent); padding: 0 .25em; font-weight: 700; }
.tags { display: flex; flex-wrap: wrap; gap: .4rem; }
.tag { font-size: .74rem; font-weight: 600; padding: .2rem .55rem; color: var(--muted); border: 2px solid var(--line); background: var(--bg2); }

/* skills */
.skill-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.4rem; }
.skill { padding: 1.3rem 1.4rem 1.4rem; }
.skill h3 { font-size: 1.2rem; margin-bottom: 1rem; display: flex; align-items: center; gap: .6rem; }
.skill h3::before { content: ""; width: 12px; height: 12px; background: var(--c); flex: none; }
.pills { display: flex; flex-wrap: wrap; gap: .45rem; }
.pill { font-size: .84rem; font-weight: 500; padding: .28rem .65rem; background: var(--bg2); border: 2px solid var(--line); transition: transform .12s, border-color .12s, background .12s; cursor: default; }
.pill:hover { transform: translateY(-3px); border-color: var(--c); background: color-mix(in srgb, var(--c) 16%, var(--bg2)); }

/* projects */
.proj-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1.6rem; }
.proj { padding: 1.5rem; display: flex; flex-direction: column; align-items: flex-start; gap: .2rem; }
.proj h3 { font-size: 1.5rem; margin: .6rem 0 .5rem; }
.proj p { color: var(--muted); }
.badge { font-size: .55rem; background: var(--accent); color: var(--accent-ink); padding: .4rem .5rem; }
.badge.alt { background: var(--pink); color: #fff; }
.proj .tags { margin: .4rem 0 1rem; }

/* achievements */
.ach-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 1.6rem; }
.ach { padding: 1.4rem 1.5rem; }
.ach h3 { font-size: 1.25rem; margin-bottom: 1rem; color: var(--amber); }
.ach-list { display: grid; gap: .8rem; }
.ach-list li { padding-left: 1.2rem; position: relative; }
.ach-list li::before { content: "★"; position: absolute; left: 0; color: var(--amber); font-size: .75rem; top: .1rem; }
.yr { display: inline-block; font-size: .78rem; color: var(--muted); margin-left: .3rem; }

/* contact */
.clear { padding-block: clamp(3rem, 8vw, 5.5rem); }
.clear-box { text-align: center; padding: clamp(2rem, 6vw, 3.6rem) 1.4rem; max-width: 780px; margin: 0 auto; }
.gc { color: var(--amber); font-size: .8rem; margin-bottom: 1rem; animation: blink 1.6s steps(2) infinite; }
.clear-box h2 { font-size: clamp(1.9rem, 5vw, 3rem); margin-bottom: 1rem; }
.clear-box p { color: var(--muted); max-width: 52ch; margin-inline: auto; }
.clear-box .mail { margin-top: 1.2rem; font-size: .85rem; }

.foot { padding: 2rem 0 3rem; text-align: center; color: var(--muted); font-size: .85rem; }
.foot p { margin: 0 0 .4rem; }
.egg { font-size: .5rem; opacity: .35; }

/* toast */
.toast { position: fixed; left: 50%; bottom: 22px; transform: translate(-50%, 30px); z-index: 90; opacity: 0; pointer-events: none;
  background: #0a0e1c; color: #eef2ff; border: 2px solid var(--accent); padding: .65rem 1rem; font: .6rem/1.6 var(--font-px); max-width: calc(100% - 30px); text-align: center; transition: opacity .18s, transform .18s; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast.gold { border-color: #ffcc4d; color: #ffe08a; }

/* reveal */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .5s ease, transform .5s ease; }
.js .reveal.in { opacity: 1; transform: none; }
.rainbow { animation: hue 2.4s linear 2; }
@keyframes hue { to { filter: hue-rotate(360deg); } }

/* ---- responsive ---- */
@media (max-width: 900px) {
  .about { grid-template-columns: 1fr; }
  .sub-note { margin-left: 0; width: 100%; }
}
@media (max-width: 820px) {
  .tool.menu { display: inline-block; }
  .links { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; margin: 0; padding: .5rem 20px 1rem; background: var(--bg); border-bottom: 2px solid var(--line); }
  .links.open { display: flex; }
  .links a { padding: .8rem .2rem; border-bottom: 2px solid var(--line); }
  .tools { margin-left: auto; }
}
@media (max-width: 560px) {
  .timeline { padding-left: 28px; }
  .quest .node { left: -27px; width: 14px; height: 14px; }
  .timeline::before { left: 6px; }
  .quest { padding: 1.1rem 1rem; }
  .touch button { width: 50px; height: 50px; }
  .stage-card .c-org { margin-bottom: .3rem; }
  .btn { font-size: .62rem; padding: .75rem .9rem; }
  .chip { min-width: 84px; padding: .4rem .6rem; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal { opacity: 1; transform: none; }
}
@media print {
  body::before, .nav, .arcade, .cta, .toast, .hero::before, .foot .egg { display: none !important; }
  :root, :root[data-theme] { --bg: #fff; --bg2: #fff; --card: #fff; --line: #bbb; --text: #000; --muted: #333; --accent: #0b5f86; }
  .js .reveal { opacity: 1 !important; transform: none !important; }
  .sec { padding: 1.2rem 0; } .px { box-shadow: 0 0 0 1px #bbb; }
}