/*
  Mix:
  - sleepyreinze: black base, 3-col header, key/value status rows, skill marquee
  - decka: serif display statement, personal voice
  - hololive: wide-tracked titles + JP subtitle, triangle/▶ motif, pill buttons, TO TOP
  - theKOLLAB: hard offset shadows, section rule lines
  Palette: monochrome only: black, white, greys.
*/
:root {
  --black: #0b0b0f;
  --panel: #131319;
  --panel-2: #181820;
  --white: #f2f2f4;
  --mute: #8e909c;
  --line: rgba(255,255,255,.12);
  --line-strong: rgba(255,255,255,.28);
  --shadow: #2c2c36;
  --max: 1160px;
  --tri: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='48'%3E%3Cpath d='M0 48 28 0l28 48' fill='none' stroke='%23fff' stroke-opacity='.035' stroke-width='1.2'/%3E%3C/svg%3E");
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--black); color: var(--white); font: 16px/1.6 "DM Sans", system-ui, sans-serif; }
a { color: inherit; text-decoration: none; }
.wrap { max-width: var(--max); margin: 0 auto; padding-left: 16px; padding-right: 16px; }
.mono { font-family: "JetBrains Mono", ui-monospace, monospace; }
.serif { font-family: "Instrument Serif", Georgia, serif; font-weight: 400; }

/* ---------- buttons (hololive pill + kollab hard shadow) ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 14px;
  padding: 12px 22px; border-radius: 999px;
  background: var(--white); color: var(--black); border: 1px solid var(--white);
  font: 600 13px/1 "JetBrains Mono", monospace; text-transform: uppercase; letter-spacing: .06em;
  box-shadow: 4px 4px 0 var(--shadow); transition: transform .12s, box-shadow .12s;
}
.btn::after { content: "▶"; font-size: 10px; }
.btn:hover { transform: translate(2px, 2px); box-shadow: 2px 2px 0 var(--shadow); }
.btn-ghost { background: transparent; color: var(--white); border-color: var(--line-strong); box-shadow: none; }
.btn-ghost:hover { border-color: var(--white); transform: none; box-shadow: none; }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- header (sleepy 3-col) ---------- */
.nav { position: sticky; top: 0; z-index: 20; background: rgba(11,11,15,.9); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.nav .wrap { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 24px; height: 72px; }
.logo { font-weight: 700; font-size: 18px; display: flex; align-items: center; gap: 8px; }
.logo i { font-style: normal; font-size: 12px; }
.nav small { display: block; font-size: 10px; letter-spacing: .14em; color: var(--mute); text-transform: uppercase; }
.quick a { font-size: 14px; color: var(--mute); transition: color .15s; }
.quick a:not(:last-child)::after { content: ","; margin-right: 6px; }
.quick a:hover { color: var(--white); }
.based { text-align: right; font-size: 14px; }

/* ---------- hero (decka serif + sleepy status card) ---------- */
.hero { display: grid; grid-template-columns: 1.4fr 1fr; gap: 56px; align-items: end; padding-top: 96px; padding-bottom: 80px; }
.hero h1 { font-size: clamp(48px, 7vw, 92px); line-height: .98; letter-spacing: -.01em; }
.hero h1 em { font-style: italic; color: var(--mute); }
.hero .lead { color: var(--mute); font-size: 18px; max-width: 560px; margin: 28px 0 36px; }
.status { border: 1px solid var(--line); border-radius: 18px; padding: 8px 24px; background: var(--panel); }
.status .avatar { aspect-ratio: 6 / 5; margin: 16px 0; border-radius: 12px; border: 1px solid var(--line-strong); background: var(--panel-2) url("erico.jpg") 50% 66% / 125% auto no-repeat; }
.kv { display: flex; justify-content: space-between; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.kv:last-child { border-bottom: 0; }
.kv span { color: var(--mute); font: 12px "JetBrains Mono", monospace; text-transform: uppercase; letter-spacing: .08em; }
.live::before { content: ""; display: inline-block; width: 7px; height: 7px; border-radius: 50%; background: var(--white); margin-right: 8px; animation: blink 2s ease-in-out infinite; }
@keyframes blink { 50% { opacity: .25; } }

/* ---------- marquee ---------- */
.marquee { overflow: hidden; white-space: nowrap; border-block: 1px solid var(--line); }
.marquee-track { display: inline-flex; padding: 16px 0; animation: slide 40s linear infinite; font-weight: 500; font-size: 15px; color: var(--mute); }
.marquee-track span { padding: 0 28px; }
.marquee-track span::after { content: "▶"; font-size: 9px; margin-left: 56px; vertical-align: middle; color: var(--line-strong); }
@keyframes slide { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) { .marquee-track, .live::before { animation: none; } }


/* ---------- section title (hololive) ---------- */
.band { padding: 96px 0; position: relative; border-top: 1px solid var(--line); }
.band-alt { background: var(--panel) var(--tri); }
.band-title { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; margin-bottom: 48px; }
.band-title h2 { font: 700 clamp(40px, 7vw, 76px)/1 "Outfit", sans-serif; letter-spacing: .12em; text-transform: uppercase; }
.band-title h2 small { display: block; font: 500 13px/1.6 "DM Sans", sans-serif; letter-spacing: .1em; margin-top: 6px; color: var(--mute); }
.band-title h2::before { content: "▶"; display: block; font-size: 16px; letter-spacing: 0; color: var(--mute); margin-bottom: 8px; }

/* ---------- receipts ---------- */
.stats { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.stat { background: var(--black); border: 1px solid var(--line); border-radius: 16px; padding: 24px 20px; box-shadow: 5px 5px 0 var(--shadow); }
.stat b { display: block; font: 700 36px/1.1 "Outfit", sans-serif; }
.stat span { font-size: 13px; color: var(--mute); }
.qrr b { color: var(--white); font-weight: 600; }
@media (max-width: 860px) { .stats { grid-template-columns: 1fr 1fr; } .stat:last-child { grid-column: span 2; } }

/* ---------- services (sleepy-style list rows) ---------- */
.list { border-top: 1px solid var(--line); }
.item { display: grid; grid-template-columns: 80px 1fr 1.3fr; gap: 24px; align-items: baseline; padding: 28px 0; border-bottom: 1px solid var(--line); transition: padding-left .2s; }
.item:hover { padding-left: 12px; }
.item .n { color: var(--mute); font: 13px "JetBrains Mono", monospace; }
.item h3 { font-size: 26px; font-weight: 500; }
.item p { color: var(--mute); }
.item .pill { display: inline-block; font: 11px "JetBrains Mono", monospace; border: 1px solid var(--line-strong); color: var(--mute); border-radius: 999px; padding: 1px 10px; margin-left: 10px; vertical-align: middle; }

/* ---------- tools (cards) ---------- */
.tools { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
/* 7 cards: first + last span 2 → full 3×3 grid; on 2 cols only first spans → full 2×4 */
.tools .tool:first-child, .tools .tool:last-child { grid-column: span 2; }
@media (max-width: 1000px) { .tools { grid-template-columns: repeat(2, 1fr); } .tools .tool:last-child { grid-column: auto; } }
@media (max-width: 640px) { .tools { grid-template-columns: 1fr; } .tools .tool:first-child { grid-column: auto; } }
.tool { background: var(--black); border-radius: 16px; padding: 28px; border: 1px solid var(--line); box-shadow: 5px 5px 0 var(--shadow); transition: border-color .15s; }
.tool:hover { border-color: var(--line-strong); }
.tag { display: inline-block; border-radius: 999px; padding: 3px 12px; font: 600 11px "JetBrains Mono", monospace; text-transform: uppercase; letter-spacing: .06em; border: 1px solid var(--line-strong); color: var(--white); margin-bottom: 14px; }
.tool h3 { font: 700 22px/1.2 "Outfit", sans-serif; margin-bottom: 8px; }
.tool p { color: var(--mute); font-size: 15px; }

/* ---------- case studies ---------- */
.case { border: 1px solid var(--line); border-radius: 20px; overflow: hidden; margin-bottom: 20px; background: var(--panel); }
.case-top { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; padding: 14px 28px; border-bottom: 1px solid var(--line); color: var(--mute); font: 600 12px "JetBrains Mono", monospace; text-transform: uppercase; letter-spacing: .08em; }
.case-top span:first-child { color: var(--white); }
.case-body { padding: 32px 28px; }
.case h3 { font-size: clamp(30px, 4vw, 44px); line-height: 1.05; max-width: 22ch; }
.qrr { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; margin-top: 32px; }
.qrr h4 { font: 600 11px "JetBrains Mono", monospace; text-transform: uppercase; letter-spacing: .1em; color: var(--white); margin-bottom: 8px; }
.qrr p { color: var(--mute); }

/* ---------- experience ---------- */
.exp .item { grid-template-columns: 200px 1fr; }

/* ---------- contact ---------- */
.about { max-width: 760px; }
.about p { color: var(--mute); font-size: 18px; margin: 0 0 18px; }
.about p.serif { color: inherit; font-size: clamp(30px, 4vw, 44px); line-height: 1.1; margin-bottom: 28px; }

.contact { text-align: center; }
.contact .serif { font-size: clamp(44px, 7vw, 88px); line-height: 1; }
.contact p { margin: 20px 0 36px; color: var(--mute); }
.contact p.mono { margin: 0 0 16px; }
.contact .cta-row { justify-content: center; }

/* hololive TO TOP */
.to-top { position: absolute; right: 24px; top: -48px; width: 96px; height: 96px; border-radius: 50%; background: var(--black); border: 1px solid var(--line-strong); color: var(--white); display: grid; place-items: center; text-align: center; font: 700 12px/1.2 "Outfit", sans-serif; letter-spacing: .1em; transition: border-color .15s; }
.to-top:hover { border-color: var(--white); }
.to-top::before { content: "▲"; display: block; font-size: 14px; }

footer { border-top: 1px solid var(--line); color: var(--mute); font-size: 12px; padding: 24px 0; }
footer .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

/* ---------- mobile ---------- */
@media (max-width: 860px) {
  .nav .wrap { grid-template-columns: 1fr auto; }
  .quick { display: none; }
  .hero { grid-template-columns: 1fr; gap: 40px; padding-top: 56px; }
  .item, .exp .item { grid-template-columns: 1fr; gap: 6px; }
  .qrr { grid-template-columns: 1fr; gap: 18px; }
  .band-title { flex-direction: column; align-items: flex-start; }
  .to-top { width: 72px; height: 72px; top: -36px; right: 16px; font-size: 10px; }
}