/* HanaLima site. Dark by default (it's a tool for people who live in terminals),
   with a light theme for those who asked their OS for one. */

:root {
  --bg: #0b0d12;
  --bg-2: #10131a;
  --panel: #141822;
  --panel-2: #1a1f2b;
  --line: #262c3a;
  --text: #e7eaf1;
  --muted: #9aa3b5;
  --faint: #6b7385;
  --hana: #ff5fa2;      /* hana = flower */
  --hana-soft: rgba(255, 95, 162, .14);
  --lime: #b6f36b;      /* Lima, and a lime */
  --lime-soft: rgba(182, 243, 107, .12);
  --sky: #6cc6ff;
  --amber: #ffc861;
  --red: #ff6b6b;
  --grad: linear-gradient(100deg, var(--hana) 0%, #ffb0d4 45%, var(--lime) 100%);
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Hiragino Sans", "Hiragino Kaku Gothic ProN", system-ui, sans-serif;
  --radius: 14px;
  --max: 1120px;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f7f8fb;
    --bg-2: #eef1f6;
    --panel: #ffffff;
    --panel-2: #f3f5f9;
    --line: #dde2ea;
    --text: #141821;
    --muted: #4f586a;
    --faint: #7a8396;
    --hana: #e0337f;
    --hana-soft: rgba(224, 51, 127, .1);
    --lime: #4c9a0e;
    --lime-soft: rgba(76, 154, 14, .1);
    --sky: #1479c4;
    --amber: #a66a00;
    --red: #c9302c;
    --grad: linear-gradient(in oklch 100deg, #e0337f 0%, #8a4fd0 55%, #3f8f12 100%);
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 var(--sans);
  overflow-x: hidden;
}
a { color: inherit; }
img, svg { max-width: 100%; }
code, pre, kbd { font-family: var(--mono); }
code { font-size: .9em; padding: .1em .35em; border-radius: 6px; background: var(--panel-2); border: 1px solid var(--line); }

/* Language toggle: every bilingual text has an .en and a .ja version. */
html.lang-en .ja, html.lang-ja .en { display: none !important; }

.wrap { width: min(var(--max), 100% - 32px); margin-inline: auto; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.mono { font-family: var(--mono); }
.muted { color: var(--muted); }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; gap: 20px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; text-decoration: none; letter-spacing: .2px; }
.brand img { width: 28px; height: 28px; }
.nav-links { display: flex; gap: 18px; margin-left: auto; font-size: 14px; }
.nav-links a { text-decoration: none; color: var(--muted); }
.nav-links a:hover { color: var(--text); }
.nav-actions { display: flex; gap: 8px; align-items: center; }
.lang-toggle {
  display: inline-flex; border: 1px solid var(--line); border-radius: 999px; overflow: hidden; font: 600 12px var(--mono);
}
.lang-toggle button {
  border: 0; background: transparent; color: var(--muted); padding: 5px 10px; cursor: pointer; font: inherit;
}
html.lang-en .lang-toggle [data-lang="en"], html.lang-ja .lang-toggle [data-lang="ja"] { background: var(--panel-2); color: var(--text); }
@media (max-width: 860px) { .nav-links { display: none; } .nav-actions { margin-left: auto; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px; border-radius: 10px; font-weight: 600; text-decoration: none;
  border: 1px solid var(--line); background: var(--panel); transition: transform .15s, border-color .15s;
}
.btn:hover { transform: translateY(-1px); border-color: var(--faint); }
.btn.primary { background: var(--grad); color: #0b0d12; border: 0; }
.btn svg { width: 18px; height: 18px; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 84px 0 56px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: -40% -10% auto; height: 760px; z-index: -1;
  background:
    radial-gradient(40% 50% at 20% 30%, var(--hana-soft), transparent 70%),
    radial-gradient(35% 45% at 80% 20%, var(--lime-soft), transparent 70%);
}
.hero::after {
  /* faint grid, like a circuit board / packet diagram */
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: .35;
  background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(70% 60% at 50% 20%, #000 20%, transparent 75%);
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
@media (max-width: 960px) { .hero-grid { grid-template-columns: 1fr; } }
.hero-icon { display: block; width: 96px; height: 96px; margin-bottom: 18px; filter: drop-shadow(0 12px 28px rgba(255, 95, 162, .28)); }
.name-grid { display: grid; grid-template-columns: 200px 1fr; gap: 40px; align-items: center; }
.name-grid img { width: 200px; height: 200px; filter: drop-shadow(0 18px 40px rgba(255, 95, 162, .25)); }
@media (max-width: 760px) { .name-grid { grid-template-columns: 1fr; } .name-grid img { width: 140px; height: 140px; } }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px; font: 600 12px var(--mono); letter-spacing: .08em; text-transform: uppercase;
  color: var(--lime); padding: 5px 10px; border: 1px solid color-mix(in srgb, var(--lime) 40%, transparent); border-radius: 999px;
  background: var(--lime-soft);
}
.hero h1 { font-size: clamp(38px, 6vw, 66px); line-height: 1.04; letter-spacing: -.02em; margin: 18px 0 18px; }
.nb { display: inline-block; }   /* keeps a Japanese phrase on one line */
html.lang-ja .hero h1 { font-size: clamp(34px, 5.2vw, 58px); line-height: 1.12; }
.hero p.lead { font-size: clamp(17px, 2vw, 19px); color: var(--muted); max-width: 36em; margin: 0 0 26px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }
.badges { display: flex; flex-wrap: wrap; gap: 8px; }
.badge { font: 600 12px var(--mono); padding: 4px 9px; border-radius: 6px; background: var(--panel); border: 1px solid var(--line); color: var(--muted); }
.badge b { color: var(--text); }

/* ---------- Mock app window ---------- */
.mock {
  border-radius: 14px; border: 1px solid var(--line); background: var(--panel);
  box-shadow: 0 30px 80px -30px rgba(0,0,0,.6), 0 0 0 1px rgba(255,255,255,.02) inset;
  overflow: hidden; font-size: 13px;
  transform: perspective(1400px) rotateY(-6deg) rotateX(3deg);
}
@media (max-width: 960px) { .mock { transform: none; } }
.mock-bar { display: flex; align-items: center; gap: 7px; padding: 10px 12px; border-bottom: 1px solid var(--line); background: var(--panel-2); }
.mock-bar i { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; display: block; }
.mock-bar i:nth-child(2) { background: #febc2e; }
.mock-bar i:nth-child(3) { background: #28c840; }
.mock-bar span { margin-left: 10px; font-weight: 600; }
.mock-tabs { margin-left: auto; display: flex; gap: 2px; background: var(--bg-2); border-radius: 8px; padding: 2px; font-size: 11px; }
.mock-tabs b { padding: 3px 9px; border-radius: 6px; font-weight: 500; color: var(--muted); }
.mock-tabs b.on { background: var(--panel); color: var(--text); }
.mock-body { display: grid; grid-template-columns: 168px 1fr; min-height: 330px; }
@media (max-width: 620px) { .mock-body { grid-template-columns: 1fr; } .mock-side, .mock-tabs { display: none; } .term { font-size: 10.5px; } }
.mock-side { border-right: 1px solid var(--line); padding: 12px 8px; background: var(--bg-2); }
.mock-side h6 { margin: 8px 8px 4px; font-size: 10.5px; color: var(--faint); font-weight: 600; }
.mock-side div { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 7px; }
.mock-side div.on { background: var(--panel-2); }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--faint); flex: none; }
.dot.run { background: #28c840; box-shadow: 0 0 8px #28c84088; }
.mock-main { padding: 14px; display: grid; gap: 10px; align-content: start; }
.mock-card { border: 1px solid var(--line); border-radius: 10px; background: var(--bg-2); }
.mock-row { display: flex; justify-content: space-between; gap: 12px; padding: 8px 12px; border-top: 1px solid var(--line); }
.mock-row:first-child { border-top: 0; }
.mock-row .k { color: var(--muted); }
.mock-row .v { font-family: var(--mono); font-size: 12px; text-align: right; }
.chip { font: 600 10.5px var(--mono); padding: 2px 7px; border-radius: 5px; background: var(--hana-soft); color: var(--hana); }
.chip.lime { background: var(--lime-soft); color: var(--lime); }
.chip.sky { background: color-mix(in srgb, var(--sky) 15%, transparent); color: var(--sky); }
.term {
  background: #07080c; color: #d6dbe6; border-radius: 10px; padding: 12px 14px; font: 12px/1.6 var(--mono);
  border: 1px solid var(--line); min-height: 112px; white-space: pre-wrap; overflow: hidden;
}
.term .p { color: var(--lime); }
.term .c { color: #7b8496; }
.term .h { color: #ff8fc0; }
.cursor { display: inline-block; width: 7px; height: 1.1em; vertical-align: -2px; background: var(--lime); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* ---------- Sections ---------- */
section { padding: 84px 0; }
section.alt { background: var(--bg-2); border-block: 1px solid var(--line); }
.kicker { font: 600 12px var(--mono); letter-spacing: .1em; text-transform: uppercase; color: var(--hana); }
h2 { font-size: clamp(28px, 4vw, 42px); line-height: 1.15; letter-spacing: -.015em; margin: 10px 0 14px; }
h3 { font-size: 19px; margin: 0 0 8px; letter-spacing: -.005em; }
.section-lead { color: var(--muted); max-width: 46em; font-size: 17px; margin: 0 0 40px; }

/* Stat strip */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
@media (max-width: 760px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat { background: var(--panel); padding: 22px 20px; }
.stat b { display: block; font: 700 34px/1.1 var(--mono); }
.stat span { color: var(--muted); font-size: 14px; }

/* "How is this possible" deep dives */
.dives { display: grid; gap: 18px; }
.dive {
  display: grid; grid-template-columns: 64px 1fr 1fr; gap: 24px; align-items: start;
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px;
  transition: border-color .2s;
}
.dive:hover { border-color: color-mix(in srgb, var(--hana) 45%, var(--line)); }
@media (max-width: 900px) { .dive { grid-template-columns: 1fr; gap: 14px; } }
.dive .num { font: 700 30px var(--mono); color: transparent; -webkit-text-stroke: 1px var(--hana); }
.dive p { margin: 0 0 10px; color: var(--muted); }
.dive .tag { display: inline-block; margin-top: 4px; }
pre.code {
  margin: 0; background: #07080c; color: #d6dbe6; border: 1px solid var(--line); border-radius: 10px;
  padding: 14px 16px; font-size: 12.5px; line-height: 1.6; overflow-x: auto;
}
pre.code .k { color: #ff8fc0; }
pre.code .s { color: #c3f58a; }
pre.code .c { color: #6f798c; }
pre.code .n { color: #8fd3ff; }

/* Concept figures next to each deep dive: small SVGs in the site's tokens. */
.fig { margin: 0; background: var(--bg-2); border: 1px solid var(--line); border-radius: 10px; padding: 12px; }
.fig svg { display: block; width: 100%; height: auto; }
.fig text { font-family: var(--mono); font-size: 12px; }
.fig .t { fill: var(--text); font-size: 13px; font-weight: 700; }
.fig .m { fill: var(--muted); }
.fig .f { fill: var(--faint); font-size: 11px; letter-spacing: .02em; }
.fig .ok { fill: var(--lime); font-weight: 600; }
.fig .ng { fill: var(--red); font-weight: 600; }
.fig .small { font-size: 11px; }
.fig .big { font-size: 18px; }
.fig .hana-t { fill: var(--hana); }
.fig .sky-t { fill: var(--sky); }
.fig .lime-t { fill: var(--lime); font-weight: 600; }
.fig .chip-t { fill: var(--muted); font-size: 10px; }
.fig .box { fill: var(--panel); stroke: var(--line); stroke-width: 1.2; }
.fig .box.hana { stroke: var(--hana); }
.fig .box.sky { stroke: var(--sky); }
.fig .box.lime { stroke: var(--lime); }
.fig .box.ng { stroke: var(--red); }
.fig .box.dashed { stroke-dasharray: 4 4; fill: none; }
.fig .chipbox { fill: var(--hana-soft); }
.fig .bus { fill: color-mix(in srgb, var(--sky) 14%, transparent); stroke: var(--sky); stroke-width: 1.2; }
.fig .bar { stroke-width: 1.2; }
.fig .bar.hana { fill: var(--hana-soft); stroke: var(--hana); }
.fig .bar.lime { fill: var(--lime-soft); stroke: var(--lime); }
.fig .bar.sky { fill: color-mix(in srgb, var(--sky) 14%, transparent); stroke: var(--sky); }
.fig .ln { fill: none; stroke: var(--muted); stroke-width: 1.8; }
.fig .ln.hana { stroke: var(--hana); }
.fig .ln.sky { stroke: var(--sky); }
.fig .ln.lime { stroke: var(--lime); }
.fig .ln.dash { stroke-dasharray: 4 4; }
.fig .strike { stroke: var(--hana); stroke-width: 2; }
.fig .term { fill: #07080c; stroke: var(--line); }
.fig .term-t { fill: #c3f58a; }
.fig .hl { fill: var(--hana-soft); }
.fig .off { opacity: .6; }

/* Architecture diagram */
.diagram { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.diagram svg { display: block; width: 100%; height: auto; }
.diagram text { font-family: var(--mono); }
.flow { stroke-dasharray: 6 6; animation: flow 1.2s linear infinite; }
@keyframes flow { to { stroke-dashoffset: -12; } }
.legend { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 14px; color: var(--muted); font-size: 13px; }
.legend i { display: inline-block; width: 18px; height: 3px; border-radius: 2px; vertical-align: middle; margin-right: 6px; }

/* Comparison table */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; min-width: 640px; background: var(--panel); font-size: 14.5px; }
th, td { padding: 13px 16px; text-align: left; border-bottom: 1px solid var(--line); }
th { font-size: 12.5px; color: var(--muted); font-weight: 600; background: var(--panel-2); }
tr:last-child td { border-bottom: 0; }
td.hl, th.hl { background: color-mix(in srgb, var(--hana) 7%, var(--panel)); }
.yes { color: var(--lime); font-weight: 700; }
.no { color: var(--faint); }

/* Feature grid */
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 960px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .grid { grid-template-columns: 1fr; } }
/* A card that closes the grid on its own row in the 3-column layout (no orphan). */
@media (min-width: 961px) { .grid > .card.wide { grid-column: 1 / -1; } }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; position: relative; }
.card .icon { width: 36px; height: 36px; border-radius: 9px; display: grid; place-items: center; background: var(--hana-soft); color: var(--hana); margin-bottom: 14px; }
.card .icon svg { width: 20px; height: 20px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.status { position: absolute; top: 18px; right: 18px; font: 600 10.5px var(--mono); padding: 2px 7px; border-radius: 5px; }
.status.done { background: var(--lime-soft); color: var(--lime); }
.status.next { background: color-mix(in srgb, var(--amber) 15%, transparent); color: var(--amber); }
.status.later { background: var(--panel-2); color: var(--faint); border: 1px dashed var(--line); }

/* Quick start */
.qs { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
@media (max-width: 900px) { .qs { grid-template-columns: 1fr; } }
.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.steps li { counter-increment: step; display: grid; grid-template-columns: 34px 1fr; gap: 12px; }
.steps li::before { content: counter(step); width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center; font: 700 13px var(--mono); background: var(--panel-2); border: 1px solid var(--line); }
.steps p { margin: 4px 0 0; color: var(--muted); font-size: 15px; }
.copyable { position: relative; }
.copy {
  position: absolute; top: 8px; right: 8px; font: 600 11px var(--mono); padding: 4px 8px; border-radius: 6px;
  background: var(--panel-2); color: var(--muted); border: 1px solid var(--line); cursor: pointer;
}
.copy:hover { color: var(--text); }

/* Roadmap */
.road { display: grid; grid-template-columns: repeat(7, 1fr); gap: 0; position: relative; }
@media (max-width: 900px) { .road { grid-template-columns: 1fr; } }
.milestone { padding: 0 16px 0 0; position: relative; }
.milestone .bar { height: 4px; border-radius: 2px; background: var(--line); margin-bottom: 16px; }
.milestone.done .bar { background: var(--grad); }
.milestone.next .bar { background: linear-gradient(90deg, var(--amber), transparent); }
.milestone.later .bar { background: repeating-linear-gradient(90deg, var(--faint) 0 6px, transparent 6px 12px); opacity: .6; }
.milestone.later h3, .milestone.later ul { color: var(--faint); }
.milestone h3 { font: 700 15px var(--mono); }
.milestone ul { margin: 6px 0 0; padding-left: 18px; color: var(--muted); font-size: 14px; }
@media (max-width: 900px) { .milestone { padding: 0 0 22px; } }

/* Disclaimer + footer */
.notice { border: 1px solid color-mix(in srgb, var(--amber) 40%, var(--line)); background: color-mix(in srgb, var(--amber) 7%, var(--panel)); border-radius: var(--radius); padding: 18px 20px; font-size: 15px; }
.notice strong { color: var(--amber); }
footer { padding: 40px 0 60px; color: var(--faint); font-size: 14px; border-top: 1px solid var(--line); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 14px 28px; align-items: center; justify-content: space-between; }
footer a { color: var(--muted); }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }