/* Tamio — tamio.sh
   Dark first, light when the system is; hairline grids and mono labels. */

:root {
  --bg: #0b0d12;
  --bg-raised: #11141b;
  --bg-sunken: #07080c;
  --ink: #eef1f7;
  --ink-2: #a3abbb;
  --ink-3: #6b7385;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);
  --accent: #2b89fd;
  --accent-ink: #5ea6ff;
  --ok: #3dd47a;
  --glow: rgba(43, 137, 253, 0.32);
  --term: #0d1426;
  --term-ink: #d7e3ff;
  --radius: 14px;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #fbfbfa;
    --bg-raised: #ffffff;
    --bg-sunken: #f2f3f5;
    --ink: #0e1117;
    --ink-2: #4b5363;
    --ink-3: #8a91a0;
    --line: rgba(14, 17, 23, 0.09);
    --line-strong: rgba(14, 17, 23, 0.16);
    --accent-ink: #1a6fe0;
    --ok: #18a558;
    --glow: rgba(43, 137, 253, 0.22);
    color-scheme: light;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 16px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
code, pre { font-family: var(--mono); }
img { display: block; }

.wrap { width: min(1120px, 100% - 32px); margin-inline: auto; }

/* Navigation */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom: 1px solid var(--line);
}
.nav-inner { display: flex; align-items: center; gap: 24px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; letter-spacing: -0.01em; }
.brand img { border-radius: 7px; }
.nav-links { display: flex; gap: 22px; margin-left: auto; font-size: 14px; color: var(--ink-2); }
.nav-links a:hover { color: var(--ink); }

/* Buttons */
.button {
  display: inline-flex; align-items: center; gap: 8px;
  height: 44px; padding: 0 20px; border-radius: 999px;
  background: var(--accent); color: #fff; font-weight: 600; font-size: 15px;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.25) inset, 0 8px 24px -8px var(--glow);
  transition: transform 0.15s ease, filter 0.15s ease;
}
.button:hover { filter: brightness(1.08); transform: translateY(-1px); }
.button-small { height: 34px; padding: 0 14px; font-size: 14px; }
.button-ghost {
  background: transparent; color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--line-strong);
}
.button-ghost:hover { background: var(--bg-raised); filter: none; }

/* Hero */
.hero { position: relative; padding: 88px 0 72px; border-bottom: 1px solid var(--line); }
.glow {
  position: absolute; inset: -120px 0 auto; height: 620px; pointer-events: none;
  background: radial-gradient(50% 55% at 50% 30%, var(--glow), transparent 70%);
}
.glow-low { inset: auto 0 -160px; top: auto; }
.hero-inner { position: relative; text-align: center; display: flex; flex-direction: column; align-items: center; }
.hero-icon { width: 132px; height: 132px; filter: drop-shadow(0 18px 40px var(--glow)); }
.kana {
  margin: 22px 0 0; font: 500 14px/1 var(--mono); letter-spacing: 0.12em; color: var(--ink-2);
  display: inline-flex; gap: 10px; align-items: center;
}
.kana [lang="ja"] { font-family: "Noto Sans JP", var(--sans); letter-spacing: 0.2em; }
.kana .dot { color: var(--ink-3); }
h1 {
  margin: 18px 0 0; font-size: clamp(40px, 7vw, 76px); line-height: 1.02; letter-spacing: -0.045em;
  font-weight: 700;
}
.lede { max-width: 640px; margin: 22px 0 0; font-size: clamp(16px, 2.2vw, 19px); color: var(--ink-2); }
.cta { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-top: 32px; }
.fine { margin: 16px 0 0; font: 400 12.5px/1.4 var(--mono); color: var(--ink-3); letter-spacing: 0.02em; }

/* Homebrew, under the download buttons */
.brew {
  display: inline-flex; align-items: center; gap: 10px; margin-top: 18px; max-width: 100%;
  padding: 6px 6px 6px 14px; border-radius: 10px; background: var(--bg-raised); border: 1px solid var(--line);
}
.brew code { font-size: 13px; color: var(--ink); overflow-wrap: anywhere; text-align: left; }
.brew code::before { content: "$ "; color: var(--ink-3); }

/* Sections */
.section { position: relative; padding: 96px 0; border-bottom: 1px solid var(--line); }
.eyebrow { margin: 0; font: 500 12.5px var(--mono); letter-spacing: 0.08em; color: var(--accent-ink); text-transform: uppercase; }
h2 { margin: 14px 0 0; font-size: clamp(30px, 4.6vw, 48px); line-height: 1.08; letter-spacing: -0.035em; font-weight: 700; max-width: 760px; }
.section-lede { max-width: 680px; margin: 18px 0 0; font-size: 17px; color: var(--ink-2); }

.grid { display: grid; margin-top: 48px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--line); gap: 1px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.cell { background: var(--bg); padding: 28px; min-width: 0; }
.cell-label { margin: 0; font: 500 13px var(--mono); color: var(--ink); letter-spacing: 0.01em; }
.cell-label::before { content: "▸ "; color: var(--accent-ink); }
.cell-text { margin: 10px 0 0; color: var(--ink-2); font-size: 15px; }
.cell-text code { font-size: 13px; padding: 1px 5px; border-radius: 5px; background: var(--bg-sunken); border: 1px solid var(--line); }

.code {
  display: flex; align-items: center; gap: 12px; margin-top: 16px; padding: 14px 14px 14px 16px;
  background: var(--bg-sunken); border: 1px solid var(--line); border-radius: 10px;
}
.code code { flex: 1; min-width: 0; font-size: 12.5px; color: var(--ink); overflow-wrap: anywhere; }
.code code::before { content: "$ "; color: var(--ink-3); }
.copy {
  flex: none; height: 28px; padding: 0 12px; border-radius: 7px; cursor: pointer;
  font: 500 12px var(--sans); color: var(--ink); background: var(--bg-raised);
  border: 1px solid var(--line-strong);
}
.copy:hover { border-color: var(--accent); }
.tools { display: flex; flex-wrap: wrap; gap: 6px; margin: 18px 0 0; padding: 0; list-style: none; }
.tools li { font: 11.5px var(--mono); padding: 3px 8px; border-radius: 6px; border: 1px solid var(--line); color: var(--ink-2); }

/* Download */
.final { text-align: center; overflow: hidden; border-bottom: 0; }
.final-inner { position: relative; display: flex; flex-direction: column; align-items: center; }
.final-inner img { filter: drop-shadow(0 14px 32px var(--glow)); }
.final h2 { margin-top: 24px; }
.not-found { min-height: 100vh; display: grid; place-items: center; }
.not-found .eyebrow { margin-top: 28px; }

/* Footer */
.footer { border-top: 1px solid var(--line); padding: 36px 0 48px; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; }
.footer-brand { display: flex; align-items: center; gap: 9px; font-weight: 600; }
.footer-brand img { border-radius: 5px; }
.kana-small { font: 500 12px "Noto Sans JP", var(--sans); color: var(--ink-3); letter-spacing: 0.15em; }
.footer-links { display: flex; flex-wrap: wrap; gap: 20px; margin-left: auto; font-size: 14px; color: var(--ink-2); }
.footer-links a:hover, .footer-fine a:hover { color: var(--ink); }
.footer-fine { flex-basis: 100%; margin: 0; font-size: 12.5px; color: var(--ink-3); }
.footer-fine a { text-decoration: underline; text-decoration-color: var(--line-strong); text-underline-offset: 3px; }

/* Narrower screens */
@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .hero { padding-top: 64px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .section { padding: 72px 0; }
  .cell { padding: 22px; }
  .hide-sm { display: none; }
  .nav-links { gap: 16px; }
}
@media (max-width: 560px) {
  .nav-links { display: none; }
  .button-small { margin-left: auto; }
  .grid-4 { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}