/* =========================================================================
   株式会社ライブオンズ コーポレートサイト — Design System
   ミニマル × 大胆なタイポ × 余白 / 白基調 + パープル1アクセント
   ========================================================================= */

:root {
  /* color */
  --accent: #601986;
  --accent-ink: #43115e;      /* hover / pressed */
  --accent-soft: #f3e9f6;     /* tints */
  --bg: #ffffff;
  --bg-sub: #f5f5f7;
  --ink: #1a1a1a;
  --ink-2: #666666;
  --ink-3: #9a9aa0;
  --line: #e7e7ea;

  /* type */
  --jp: "Zen Kaku Gothic New", system-ui, sans-serif;
  --latin: "Archivo", "Helvetica Neue", Arial, sans-serif;

  /* layout */
  --maxw: 1200px;
  --gutter: clamp(18px, 5vw, 64px);
  --radius: 12px;

  --ease: cubic-bezier(.22, .61, .36, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; overflow-x: clip; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--jp);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "palt" 1;
  letter-spacing: .01em;
  line-height: 1.85;
  overflow-x: clip;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ---- layout helpers ---- */
.wrap {
  width: min(calc(100% - (var(--gutter) * 2)), calc(var(--maxw) - (var(--gutter) * 2)));
  margin-inline: auto;
}
.section { padding-block: clamp(72px, 11vw, 150px); }
.section--sub { background: var(--bg-sub); }

/* eyebrow / section label (Latin) */
.eyebrow {
  font-family: var(--latin);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 22px;
}
.eyebrow::before {
  content: "";
  width: 28px; height: 1.5px;
  background: var(--accent);
  display: inline-block;
}

/* headings */
.h-xl { font-weight: 900; font-size: clamp(34px, 6vw, 72px); line-height: 1.08; letter-spacing: 0; margin: 0; }
.h-lg { font-weight: 800; font-size: clamp(28px, 4.4vw, 50px); line-height: 1.18; letter-spacing: 0; margin: 0; }
.h-md { font-weight: 700; font-size: clamp(21px, 2.4vw, 28px); line-height: 1.4; margin: 0; }
.lede { font-size: clamp(16px, 1.5vw, 19px); color: var(--ink-2); line-height: 2; max-width: 60ch; text-wrap: pretty; }

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

/* ---- buttons ---- */
.btn {
  --bh: 54px;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: var(--bh); padding-inline: 30px;
  font-family: var(--jp); font-weight: 700; font-size: 15px; letter-spacing: .04em;
  border-radius: 999px; border: 1.5px solid transparent;
  cursor: pointer; transition: transform .2s var(--ease), background .2s var(--ease), color .2s, border-color .2s;
  max-width: 100%; min-width: 0; text-align: center; white-space: nowrap;
}
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-ink); transform: translateY(-2px); }
.btn--dark { background: var(--ink); color: #fff; }
.btn--dark:hover { transform: translateY(-2px); background: #000; }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: #fff; transform: translateY(-2px); }
.btn--sm { --bh: 44px; padding-inline: 22px; font-size: 14px; }
.btn .arr { transition: transform .25s var(--ease); }
.btn:hover .arr { transform: translateX(4px); }

/* text link with arrow */
.tlink {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 15px; color: var(--accent); letter-spacing: .02em;
}
.tlink .arr { transition: transform .25s var(--ease); }
.tlink:hover .arr { transform: translateX(5px); }

/* ---- reveal on scroll ---- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1 !important; transform: none !important; } }

/* ---- image placeholder ---- */
.ph {
  position: relative; overflow: hidden;
  background-color: #e9e9ee;
  background-image: repeating-linear-gradient(135deg,
    rgba(0,0,0,.045) 0 2px, transparent 2px 11px);
  display: flex; align-items: center; justify-content: center;
  color: #8a8a92;
}
.ph::after {
  content: attr(data-label);
  font-family: "Archivo", monospace;
  font-size: 12px; letter-spacing: .14em; text-transform: uppercase;
  padding: 7px 12px; border: 1px dashed #b6b6c0; border-radius: 6px;
  background: rgba(255,255,255,.62); color: #76767e;
  text-align: center; max-width: 80%;
}
.ph img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.ph--image {
  background: none;
}
.ph--image::after {
  display: none;
}
.ph--dark { background-color: #1c1f24; background-image: repeating-linear-gradient(135deg, rgba(255,255,255,.05) 0 2px, transparent 2px 11px); }
.ph--dark::after { background: rgba(0,0,0,.35); border-color: rgba(255,255,255,.25); color: rgba(255,255,255,.7); }

@media (max-width: 600px) {
  :root {
    --gutter: clamp(18px, 5.2vw, 24px);
    --radius: 10px;
  }

  body {
    font-size: 15px;
    line-height: 1.75;
  }

  .section {
    padding-block: 64px;
  }

  .eyebrow {
    gap: 10px;
    margin-bottom: 16px;
    font-size: 11px;
    letter-spacing: .14em;
  }

  .eyebrow::before {
    width: 22px;
  }

  .h-xl {
    font-size: clamp(32px, 9vw, 42px);
  }

  .h-lg {
    font-size: clamp(26px, 8vw, 36px);
    line-height: 1.25;
  }

  .h-md {
    font-size: clamp(20px, 6vw, 24px);
  }

  .lede {
    font-size: 15px;
    line-height: 1.9;
    overflow-wrap: anywhere;
  }

  .btn {
    --bh: 50px;
    min-height: var(--bh);
    height: auto;
    padding: 12px 20px;
    font-size: 14px;
    line-height: 1.35;
    white-space: normal;
  }

  .ph::after {
    max-width: calc(100% - 28px);
    padding: 6px 8px;
    font-size: 10px;
    line-height: 1.5;
    letter-spacing: .08em;
    overflow-wrap: anywhere;
  }
}

@media (max-width: 380px) {
  :root {
    --gutter: 16px;
  }

  .btn {
    padding-inline: 16px;
  }
}