/* Patto 公開サイト（トップ・プライバシーポリシー・利用規約）共通 */

:root {
  --bg: #ffffff;
  --bg-subtle: #f5f6f8;
  --ink: #15181c;
  --ink-2: #4a525c;
  --ink-3: #6b7480;
  --line: #e4e7eb;
  --accent: #0a6cff;
  --accent-ink: #ffffff;
  --shot-border: rgba(21, 24, 28, 0.10);
  --radius: 14px;
  --max: 1080px;
  --font: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN",
    "Noto Sans JP", "Yu Gothic UI", Meiryo, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1113;
    --bg-subtle: #171a1d;
    --ink: #eef0f2;
    --ink-2: #b9c0c8;
    --ink-3: #8e97a1;
    --line: #2a2f35;
    --accent: #4c95ff;
    --accent-ink: #0b0d10;
    --shot-border: rgba(255, 255, 255, 0.12);
  }
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-padding-top: 72px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; height: auto; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

h1, h2, h3 { margin: 0; line-height: 1.35; letter-spacing: 0.01em; font-weight: 700; }
/* 日本語の見出しを文節の途中で折り返さない */
h1, h2, h3 { word-break: auto-phrase; text-wrap: balance; }
.hero h1 span { display: inline-block; }
p { margin: 0; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom: 1px solid var(--line);
}

.site-header .container {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 700;
  font-size: 18px;
}
.brand:hover { text-decoration: none; }
.brand img { width: 30px; height: 30px; border-radius: 7px; }

.site-nav { display: flex; gap: 24px; margin-left: auto; font-size: 14px; }
.site-nav a { color: var(--ink-2); }
.site-nav a:hover { color: var(--ink); text-decoration: none; }

.header-cta { font-size: 14px; }

@media (max-width: 760px) {
  .site-nav { display: none; }
  .header-cta { margin-left: auto; }
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 20px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 15px;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; }

.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { opacity: 0.88; }

.btn-secondary { border: 1px solid var(--line); color: var(--ink); background: var(--bg); }
.btn-secondary:hover { background: var(--bg-subtle); }

.btn-small { height: 36px; padding: 0 14px; font-size: 14px; border-radius: 8px; }

.btn svg { width: 18px; height: 18px; flex: none; }

/* ---------- Hero ---------- */

.hero { padding: 88px 0 72px; }

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}

.eyebrow {
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 16px;
}

.hero h1 { font-size: clamp(30px, 3.8vw, 44px); line-height: 1.3; }

.hero .lead {
  margin-top: 24px;
  font-size: 17px;
  color: var(--ink-2);
  max-width: 34em;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 36px; }

.hero-note { margin-top: 16px; font-size: 13px; color: var(--ink-3); }

.hero-visual { display: flex; justify-content: center; }

/* ---------- Screenshots ---------- */

.shot {
  width: 100%;
  max-width: 300px;
  border-radius: 36px;
  border: 1px solid var(--shot-border);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 24px 48px -24px rgba(0, 0, 0, 0.22);
  background: var(--bg-subtle);
}

/* ---------- Sections ---------- */

.section { padding: 96px 0; border-top: 1px solid var(--line); }
.section-subtle { background: var(--bg-subtle); }

.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(26px, 3vw, 32px); }
.section-head p { margin-top: 16px; color: var(--ink-2); }

/* Feature rows */

.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: 72px 0;
  border-top: 1px solid var(--line);
}
.feature:first-of-type { border-top: 0; padding-top: 0; }
.feature:last-of-type { padding-bottom: 0; }

.feature-visual { display: flex; justify-content: center; }
.feature.reverse .feature-visual { order: -1; }

.feature-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-3);
  letter-spacing: 0.06em;
  margin-bottom: 12px;
}

.feature h3 { font-size: clamp(22px, 2.4vw, 28px); }
.feature p { margin-top: 16px; color: var(--ink-2); }

.points { list-style: none; margin: 24px 0 0; padding: 0; }
.points li {
  position: relative;
  padding: 10px 0 10px 20px;
  border-top: 1px solid var(--line);
  font-size: 15px;
  color: var(--ink-2);
}
.points li:last-child { border-bottom: 1px solid var(--line); }
.points li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 21px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* More features */

.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.grid > div {
  padding: 28px 28px 32px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.grid h3 { font-size: 16px; }
.grid p { margin-top: 8px; font-size: 14px; color: var(--ink-2); }

/* Pricing */

.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; max-width: 880px; }

.plan {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  background: var(--bg);
}
.plan.featured { border-color: var(--ink); }

.plan-name { font-size: 15px; font-weight: 600; color: var(--ink-2); }
.plan-price { margin-top: 8px; font-size: 32px; font-weight: 700; }
.plan-price small { font-size: 15px; font-weight: 500; color: var(--ink-3); margin-left: 4px; }
.plan-sub { margin-top: 4px; font-size: 14px; color: var(--ink-3); }

.plan .points { margin-top: 24px; }

.fine { margin-top: 24px; font-size: 13px; color: var(--ink-3); max-width: 880px; }

/* FAQ */

.faq { max-width: 760px; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 20px 32px 20px 0;
  font-weight: 600;
  position: relative;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "";
  position: absolute;
  right: 6px;
  top: 28px;
  width: 8px;
  height: 8px;
  border-right: 1.5px solid var(--ink-3);
  border-bottom: 1.5px solid var(--ink-3);
  transform: rotate(45deg);
}
.faq details[open] summary::after { transform: rotate(-135deg); top: 32px; }
.faq details p { padding: 0 0 20px; color: var(--ink-2); font-size: 15px; }

/* Download */

.download { text-align: left; }
.download .container { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.download h2 { font-size: clamp(24px, 2.8vw, 30px); }
.download p { margin-top: 12px; color: var(--ink-2); }
.download .hero-actions { margin-top: 0; }

/* ---------- Footer ---------- */

.site-footer { border-top: 1px solid var(--line); padding: 40px 0 48px; font-size: 14px; color: var(--ink-3); }
.site-footer .container { display: flex; flex-wrap: wrap; gap: 16px 32px; align-items: center; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 24px; }
.site-footer nav a { color: var(--ink-2); }
.site-footer .copy { margin-left: auto; }

/* ---------- Legal documents ---------- */

.doc { max-width: 720px; margin: 0 auto; padding: 64px 24px 96px; }
.doc h1 { font-size: clamp(28px, 3.4vw, 34px); }
.doc .updated { margin-top: 12px; font-size: 14px; color: var(--ink-3); }
.doc h2 {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 20px;
}
.doc .sub-heading { margin-top: 24px; font-weight: 700; }
.doc p { margin-top: 12px; color: var(--ink-2); }
.doc ul, .doc ol { margin: 12px 0 0; padding-left: 1.4em; color: var(--ink-2); }
.doc li { margin-top: 4px; }
.doc a { word-break: break-all; }

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .hero { padding: 56px 0 48px; }
  .hero .container, .feature { grid-template-columns: 1fr; gap: 40px; }
  .feature.reverse .feature-visual { order: 0; }
  .feature { padding: 56px 0; }
  .section { padding: 72px 0; }
  .grid { grid-template-columns: 1fr 1fr; }
  .plans { grid-template-columns: 1fr; }
  .shot { max-width: 260px; }
}

@media (max-width: 560px) {
  .container { padding: 0 16px; }
  .grid { grid-template-columns: 1fr; }
  .plan { padding: 24px; }
  .site-footer .copy { margin-left: 0; }
  .doc { padding: 40px 16px 72px; }
}