/* ============================================================
   NemakiWare — site styles
   Teal/blue enterprise SaaS. Bilingual (EN/JA).
   ============================================================ */

:root {
  /* brand */
  --teal-700: oklch(0.44 0.135 252);
  --teal-600: oklch(0.52 0.155 252);
  --teal-500: oklch(0.60 0.165 252);
  --teal-400: oklch(0.70 0.135 252);
  --teal-200: oklch(0.89 0.06 252);
  --teal-100: oklch(0.955 0.03 252);

  --accent: var(--teal-600);
  --accent-strong: #076bb8;
  --accent-bright: oklch(0.72 0.15 254);

  /* ink / neutrals (cool) */
  --ink-900: oklch(0.21 0.018 235);
  --ink-800: oklch(0.27 0.018 235);
  --ink-700: oklch(0.37 0.016 235);
  --ink-600: oklch(0.48 0.014 235);
  --ink-500: oklch(0.58 0.012 235);
  --ink-400: oklch(0.70 0.010 235);
  --line: oklch(0.90 0.008 235);
  --line-soft: oklch(0.94 0.006 235);

  /* surfaces */
  --bg: oklch(0.99 0.003 230);
  --bg-tint: oklch(0.975 0.006 215);
  --surface: #ffffff;

  /* dark surfaces */
  --night-900: oklch(0.20 0.028 240);
  --night-850: oklch(0.235 0.030 240);
  --night-800: oklch(0.27 0.032 240);
  --night-700: oklch(0.34 0.030 240);
  --night-line: oklch(0.40 0.030 240 / 0.5);

  /* type */
  --display: "Space Grotesk", "Noto Sans JP", sans-serif;
  --body: "Hanken Grotesk", "Noto Sans JP", sans-serif;
  --mono: "IBM Plex Mono", "Noto Sans JP", monospace;

  --maxw: 1180px;
  --pad: clamp(20px, 5vw, 64px);
  --radius: 14px;
  --radius-lg: 22px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--body);
  background: var(--bg);
  color: var(--ink-800);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

:lang(ja), [data-lang="ja"] { font-feature-settings: "palt" 1; }

h1, h2, h3, h4 {
  font-family: var(--display);
  color: var(--ink-900);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0;
  font-weight: 600;
  text-wrap: balance;
}

p { margin: 0; text-wrap: pretty; }
a { color: inherit; text-decoration: none; }

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

/* layout helpers ------------------------------------------------ */
.wrap { max-width: var(--maxw); margin: 0 auto; padding-inline: var(--pad); }
.section { padding-block: clamp(64px, 9vw, 130px); position: relative; }
.section--tight { padding-block: clamp(48px, 6vw, 88px); }

.eyebrow {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--accent-strong);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 9px;
}
.eyebrow::before {
  content: "";
  width: 22px; height: 1px;
  background: var(--accent);
  display: inline-block;
}
.eyebrow--plain::before { display: none; }

.sec-head { max-width: 760px; margin-bottom: clamp(36px, 5vw, 60px); }
.sec-head h2 {
  font-size: clamp(30px, 4.4vw, 50px);
  margin-top: 18px;
  white-space: pre-line;
}
.sec-head p {
  margin-top: 20px;
  font-size: clamp(17px, 1.6vw, 20px);
  color: var(--ink-600);
  max-width: 62ch;
}

/* buttons ------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--body);
  font-weight: 600;
  font-size: 15.5px;
  padding: 13px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .16s ease, background .2s ease, border-color .2s ease, color .2s ease, box-shadow .2s ease;
  white-space: nowrap;
  line-height: 1;
}
.btn svg { width: 17px; height: 17px; }
.btn--primary {
  background: var(--accent-strong);
  color: #fff;
  box-shadow: 0 12px 26px -14px color-mix(in oklab, var(--accent-strong) 80%, transparent);
}
.btn--primary:hover { background: var(--teal-700); transform: translateY(-1px); }
.btn--ghost {
  background: transparent;
  color: var(--ink-800);
  border-color: var(--line);
}
.btn--ghost:hover { border-color: var(--ink-400); background: var(--surface); }
.btn--ondark {
  background: rgba(255,255,255,0.07);
  color: #fff;
  border-color: rgba(255,255,255,0.16);
}
.btn--ondark:hover { background: rgba(255,255,255,0.13); }
.btn--lg { padding: 16px 28px; font-size: 16.5px; }

/* pills / tags -------------------------------------------------- */
.pill {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 5px 11px 4px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--ink-600);
  background: var(--surface);
  font-weight: 500;
}
.pill--beta {
  color: oklch(0.52 0.13 60);
  border-color: oklch(0.86 0.07 70);
  background: oklch(0.97 0.03 75);
}
.pill--accent {
  color: var(--accent-strong);
  border-color: var(--teal-200);
  background: var(--teal-100);
}
.dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* generic card -------------------------------------------------- */
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
.card:hover { border-color: var(--teal-200); box-shadow: 0 18px 40px -28px oklch(0.45 0.06 220 / 0.55); }

.icon-tile {
  width: 44px; height: 44px;
  border-radius: 11px;
  display: grid; place-items: center;
  background: var(--teal-100);
  color: var(--accent-strong);
  border: 1px solid var(--teal-200);
  margin-bottom: 18px;
}
.icon-tile svg { width: 22px; height: 22px; }

/* dark section -------------------------------------------------- */
.dark {
  background: var(--night-900);
  color: oklch(0.86 0.012 235);
}
.dark h1, .dark h2, .dark h3, .dark h4 { color: #fff; }
.dark .sec-head p { color: oklch(0.74 0.012 235); }
.dark .eyebrow { color: var(--accent-bright); }
.dark .eyebrow::before { background: var(--accent-bright); }
.dark .card {
  background: var(--night-850);
  border-color: var(--night-line);
}
.dark .card:hover { border-color: oklch(0.55 0.06 200 / 0.6); box-shadow: none; }
.dark .pill { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.14); color: oklch(0.78 0.012 235); }
.dark .icon-tile { background: oklch(0.40 0.06 200 / 0.25); border-color: oklch(0.55 0.06 200 / 0.4); color: var(--accent-bright); }

/* divider line */
.hr { height: 1px; background: var(--line); border: 0; }

/* utility */
.muted { color: var(--ink-500); }
.grid { display: grid; gap: 20px; }
@media (max-width: 860px) { .section { padding-block: clamp(54px, 11vw, 80px); } }

/* fade-up reveal */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }