/* ==========================================================
   Kanawa — 設備保全・点検記録クラウド  共通スタイル
   方向性: 「点検表」モチーフ(紙色 × 鉄紺 × 検印の朱)
   ========================================================== */

:root {
  --bg: #f5f2ea;            /* 点検用紙のクリーム */
  --bg-alt: #ebe6da;        /* 罫線がかった帯 */
  --surface: #ffffff;
  --line: #d6d0c2;
  --line-strong: #b9b1a0;
  --text: #1d2126;
  --muted: #5a626d;         /* 4.5:1 以上 on --bg */
  --primary: #1f3a5f;       /* 鉄紺 */
  --primary-strong: #16294a;
  --primary-soft: #dfe7f2;
  --accent: #b83a2b;        /* 検印の朱 */
  --accent-soft: #f6e2de;
  --ok: #2f6b3a;
  --ok-soft: #dcecdf;
  --warn: #875c08;
  --warn-soft: #f7ebcd;
  --shadow: 0 1px 2px rgba(29, 33, 38, 0.06), 0 8px 24px rgba(29, 33, 38, 0.07);
  --radius: 6px;
  --radius-lg: 12px;
  --font: "Noto Sans JP", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --mono: "IBM Plex Mono", "Menlo", "Consolas", monospace;
  --measure: 40rem;
  --container: 1120px;
  --focus: 0 0 0 3px var(--bg), 0 0 0 6px var(--accent);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #15181c;
    --bg-alt: #1b1f25;
    --surface: #20252c;
    --line: #353c46;
    --line-strong: #4a5461;
    --text: #e9e5dc;
    --muted: #aab1ba;
    --primary: #8fb3e0;
    --primary-strong: #b5cdec;
    --primary-soft: #263647;
    --accent: #e6806f;
    --accent-soft: #46292a;
    --ok: #8fcf9a;
    --ok-soft: #22392a;
    --warn: #e2b95a;
    --warn-soft: #3d3218;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 24px rgba(0, 0, 0, 0.35);
    color-scheme: dark;
  }
}

/* ---------- Reset & base ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  font-feature-settings: "palt";
}

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

h1, h2, h3, h4 {
  margin: 0;
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: 0.01em;
}

p { margin: 0; }
p + p { margin-top: 1em; }

a { color: var(--primary); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--primary-strong); }

:focus-visible {
  outline: none;
  box-shadow: var(--focus);
  border-radius: var(--radius);
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem; top: -4rem;
  background: var(--accent);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  z-index: 100;
  transition: top 0.15s;
}
.skip-link:focus { top: 1rem; color: #fff; }

.container {
  width: min(100% - 2.5rem, var(--container));
  margin-inline: auto;
}

.num { font-family: var(--mono); font-variant-numeric: tabular-nums; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.04em;
}
.brand-mark {
  width: 32px; height: 32px;
  flex: none;
}
.brand small {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.08em;
  line-height: 1.2;
}

.nav-toggle {
  display: none;
  appearance: none;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 0.5rem 0.7rem;
  color: var(--text);
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  align-items: center;
  gap: 0.5rem;
}
.nav-toggle .bars {
  width: 20px; height: 14px;
  position: relative;
  display: inline-block;
}
.nav-toggle .bars::before,
.nav-toggle .bars::after,
.nav-toggle .bars span {
  content: "";
  position: absolute;
  left: 0; right: 0;
  height: 2px;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.2s, opacity 0.2s;
}
.nav-toggle .bars::before { top: 0; }
.nav-toggle .bars span { top: 6px; }
.nav-toggle .bars::after { bottom: 0; }
.nav-toggle[aria-expanded="true"] .bars::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .bars span { opacity: 0; }
.nav-toggle[aria-expanded="true"] .bars::after { transform: translateY(-6px) rotate(-45deg); }

.site-nav ul {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.site-nav a {
  display: inline-block;
  padding: 0.5rem 0.85rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 500;
  border-radius: var(--radius);
}
.site-nav a:hover { background: var(--bg-alt); color: var(--text); }
.site-nav a[aria-current="page"] {
  color: var(--primary);
  box-shadow: inset 0 -2px 0 var(--accent);
  border-radius: 0;
}
.site-nav .nav-cta { margin-left: 0.5rem; }

@media (max-width: 767px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute;
    left: 0; right: 0; top: 100%;
    background: var(--bg);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow);
    display: none;
  }
  .site-nav.is-open { display: block; }
  .site-nav ul {
    flex-direction: column;
    align-items: stretch;
    padding: 0.75rem 1.25rem 1.25rem;
    gap: 0.25rem;
  }
  .site-nav a { display: block; padding: 0.8rem 0.75rem; font-size: 1.05rem; }
  .site-nav a[aria-current="page"] {
    box-shadow: inset 3px 0 0 var(--accent);
    border-radius: 0;
    padding-left: 1rem;
  }
  .site-nav .nav-cta { margin: 0.5rem 0 0; }
  .site-nav .nav-cta .btn { display: inline-flex; width: 100%; justify-content: center; padding: 0.75rem 1.4rem; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.4rem;
  min-height: 48px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font: inherit;
  font-weight: 700;
  line-height: 1.3;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s, color 0.15s, transform 0.1s, border-color 0.15s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #a2311f; color: #fff; }
.btn-secondary {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}
.btn-secondary:hover { background: var(--primary-soft); color: var(--primary); }
.btn-ghost {
  background: var(--surface);
  color: var(--text);
  border-color: var(--line-strong);
}
.btn-ghost:hover { border-color: var(--text); }
.btn-lg { padding: 0.95rem 1.8rem; font-size: 1.05rem; }
.btn-block { width: 100%; }

@media (prefers-color-scheme: dark) {
  .btn-primary { background: #c4452f; color: #fff; }
  .btn-primary:hover { background: #d4553f; }
}

/* ---------- Sections ---------- */
.section { padding: clamp(3.5rem, 8vw, 6rem) 0; }
.section-alt {
  background: var(--bg-alt);
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0 31px,
    color-mix(in srgb, var(--line) 35%, transparent) 31px 32px
  );
}
.section-head { max-width: var(--measure); margin-bottom: 2.5rem; }
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}
.eyebrow::before {
  content: "";
  width: 1.6rem; height: 2px;
  background: currentColor;
}
.section-title { font-size: clamp(1.6rem, 3.2vw, 2.2rem); }
.section-lead { color: var(--muted); margin-top: 1rem; }
.lead { font-size: 1.1rem; color: var(--muted); }

/* ---------- Hero ---------- */
.hero {
  padding: clamp(3rem, 7vw, 5.5rem) 0 clamp(3rem, 7vw, 5rem);
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(color-mix(in srgb, var(--line) 50%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--line) 50%, transparent) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.5), transparent 70%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,0.5), transparent 70%);
  pointer-events: none;
}
.hero .container {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 3rem;
  align-items: center;
}
.hero-title {
  font-size: clamp(2rem, 4.4vw, 3.1rem);
  line-height: 1.3;
  margin: 0.75rem 0 1.25rem;
}
.hero-title em {
  font-style: normal;
  color: var(--accent);
  background-image: linear-gradient(transparent 68%, var(--accent-soft) 68%);
}
.hero-lead { font-size: 1.1rem; color: var(--muted); max-width: 34rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 1.75rem; }
.hero-note {
  margin-top: 1.25rem;
  font-size: 0.9rem;
  color: var(--muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.25rem;
}
.hero-note li { list-style: none; display: inline-flex; align-items: center; gap: 0.35rem; }
.hero-note ul { margin: 0; padding: 0; display: contents; }
.hero-note .check { color: var(--ok); font-weight: 700; }

.hero-visual { position: relative; }

@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-visual { max-width: 560px; }
}

/* ---------- Phone mock (点検記録画面) ---------- */
.device-scene {
  display: grid;
  grid-template-columns: 1fr 1.35fr;
  gap: 1rem;
  align-items: end;
}
.phone {
  background: var(--text);
  border-radius: 28px;
  padding: 10px;
  box-shadow: var(--shadow);
}
@media (prefers-color-scheme: dark) { .phone { background: #0b0d10; } }
.phone-screen {
  background: var(--surface);
  border-radius: 20px;
  padding: 1rem 0.9rem;
  min-height: 330px;
  font-size: 0.78rem;
  line-height: 1.5;
}
.phone-screen .bar {
  display: flex; justify-content: space-between;
  font-family: var(--mono); font-size: 0.65rem; color: var(--muted);
  margin-bottom: 0.6rem;
}
.phone-screen h3 { font-size: 0.9rem; margin-bottom: 0.15rem; }
.phone-screen .sub { color: var(--muted); font-size: 0.68rem; margin-bottom: 0.7rem; }
.checklist { list-style: none; margin: 0; padding: 0; }
.checklist li {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.45rem 0.2rem;
  border-top: 1px solid var(--line);
}
.checklist li:last-child { border-bottom: 1px solid var(--line); }
.checklist .box {
  width: 18px; height: 18px; flex: none;
  border: 1.5px solid var(--line-strong);
  border-radius: 4px;
  display: grid; place-items: center;
  color: #fff;
}
.checklist .box.done { background: #2f6b3a; border-color: #2f6b3a; }
.checklist .box.ng { background: #b83a2b; border-color: #b83a2b; }
.checklist .val { margin-left: auto; font-family: var(--mono); font-size: 0.7rem; color: var(--muted); }
.checklist .val.alert { color: var(--accent); font-weight: 700; }
.phone-screen .submit {
  margin-top: 0.8rem;
  background: #b83a2b;
  color: #fff;
  text-align: center;
  padding: 0.5rem;
  border-radius: 6px;
  font-weight: 700;
}

.dash {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 1rem;
  font-size: 0.78rem;
}
.dash-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 0.6rem; }
.dash-head strong { font-size: 0.85rem; }
.dash-head span { font-family: var(--mono); font-size: 0.65rem; color: var(--muted); }
.dash-kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem; margin-bottom: 0.8rem; }
.dash-kpis div {
  background: var(--bg);
  border-radius: 6px;
  padding: 0.45rem 0.55rem;
}
.dash-kpis small { display: block; color: var(--muted); font-size: 0.62rem; }
.dash-kpis b { font-family: var(--mono); font-size: 1rem; }
.dash-kpis b.alert { color: var(--accent); }
.dash-kpis b.ok { color: var(--ok); }
.dash svg { width: 100%; height: auto; }

@media (max-width: 480px) {
  .device-scene { grid-template-columns: 1fr; }
  .phone { max-width: 260px; }
}

/* ---------- Problem / Feature cards ---------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
@media (max-width: 900px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow);
}
.card h3 { font-size: 1.15rem; margin-bottom: 0.6rem; }
.card p { color: var(--muted); }

.problem-card {
  position: relative;
  padding-left: 2rem;
  border-left: 3px solid var(--accent);
  background: transparent;
  border-radius: 0;
  box-shadow: none;
  border-top: 0; border-right: 0; border-bottom: 0;
}
.problem-card .quote {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.6rem;
}
.problem-card .quote::before { content: "“"; color: var(--accent); }
.problem-card .quote::after { content: "”"; color: var(--accent); }

.feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  padding: 2.5rem 0;
  border-top: 1px solid var(--line);
}
.feature:last-child { border-bottom: 1px solid var(--line); }
.feature:nth-child(even) .feature-visual { order: -1; }
.feature-index {
  font-family: var(--mono);
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}
.feature h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }
.feature p { color: var(--muted); }
.feature ul { margin: 1rem 0 0; padding-left: 1.2rem; color: var(--muted); }
.feature li + li { margin-top: 0.3rem; }
.feature-visual {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}
.feature-visual svg { width: 100%; height: auto; }
@media (max-width: 800px) {
  .feature { grid-template-columns: 1fr; gap: 1.5rem; }
  .feature:nth-child(even) .feature-visual { order: 0; }
}

/* ---------- Stats ---------- */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
.stat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.25rem;
  border-top: 4px solid var(--primary);
}
.stat .value {
  font-family: var(--mono);
  font-size: 2.4rem;
  font-weight: 600;
  line-height: 1.1;
  color: var(--primary);
}
.stat .value small { font-size: 1rem; margin-left: 0.15rem; font-family: var(--font); }
.stat .label { font-weight: 700; margin-top: 0.5rem; }
.stat .note { color: var(--muted); font-size: 0.85rem; margin-top: 0.25rem; }
@media (max-width: 900px) { .stats { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 420px) { .stats { grid-template-columns: 1fr; } }

/* ---------- Case teaser ---------- */
.case-teaser {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
@media (max-width: 900px) { .case-teaser { grid-template-columns: 1fr; } }
.case-card {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text);
}
.case-card:hover { border-color: var(--primary); color: var(--text); }
.case-card .industry {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}
.case-card h3 { font-size: 1.1rem; }
.case-card .result {
  display: flex; align-items: baseline; gap: 0.5rem;
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--line-strong);
}
.case-card .result b { font-family: var(--mono); font-size: 1.6rem; color: var(--accent); }
.case-card .result span { color: var(--muted); font-size: 0.9rem; }
.case-card .more { color: var(--primary); font-weight: 700; font-size: 0.95rem; }

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--primary);
  color: #fff;
  padding: clamp(3rem, 7vw, 4.5rem) 0;
  position: relative;
  overflow: hidden;
}
@media (prefers-color-scheme: dark) {
  .cta-band { background: #1c2e4a; }
}
.cta-band::after {
  content: "";
  position: absolute;
  right: -80px; top: -80px;
  width: 320px; height: 320px;
  border: 40px solid rgba(255,255,255,0.06);
  border-radius: 50%;
  pointer-events: none;
}
.cta-band .container {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 2rem;
  align-items: center;
  position: relative;
}
.cta-band h2 { font-size: clamp(1.5rem, 3vw, 2rem); color: #fff; }
.cta-band p { color: rgba(255,255,255,0.85); margin-top: 0.75rem; }
.cta-band .actions { display: flex; flex-direction: column; gap: 0.75rem; }
.cta-band .btn-secondary { color: #fff; border-color: rgba(255,255,255,0.7); }
.cta-band .btn-secondary:hover { background: rgba(255,255,255,0.12); color: #fff; }
@media (max-width: 720px) {
  .cta-band .container { grid-template-columns: 1fr; }
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 3rem 0 2rem;
  color: var(--muted);
  font-size: 0.9rem;
}
.site-footer .container {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 2rem;
}
.site-footer h4 { font-size: 0.85rem; color: var(--text); margin-bottom: 0.75rem; letter-spacing: 0.08em; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li + li { margin-top: 0.4rem; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--text); text-decoration: underline; }
.site-footer .brand { margin-bottom: 0.75rem; }
.footer-bottom {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  font-size: 0.8rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1rem;
}
@media (max-width: 720px) {
  .site-footer .container { grid-template-columns: 1fr 1fr; }
  .site-footer .footer-brand { grid-column: 1 / -1; }
}

/* ---------- Page hero (下層) ---------- */
.page-hero {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  border-bottom: 1px solid var(--line);
}
.page-hero h1 { font-size: clamp(1.9rem, 4vw, 2.7rem); margin: 0.5rem 0 1rem; }
.page-hero p { color: var(--muted); max-width: var(--measure); font-size: 1.1rem; }

/* ---------- Pricing ---------- */
.billing-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.35rem;
  margin-bottom: 2rem;
}
.billing-toggle button {
  appearance: none;
  border: 0;
  background: transparent;
  font: inherit;
  font-weight: 700;
  color: var(--muted);
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  cursor: pointer;
}
.billing-toggle button[aria-pressed="true"] {
  background: var(--primary);
  color: #fff;
}
@media (prefers-color-scheme: dark) {
  .billing-toggle button[aria-pressed="true"] { background: var(--primary); color: #15181c; }
}
.billing-toggle .save {
  font-size: 0.75rem;
  color: var(--ok);
  background: var(--ok-soft);
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  margin-right: 0.35rem;
  font-weight: 700;
}

.plans {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: stretch;
}
@media (max-width: 900px) { .plans { grid-template-columns: 1fr; max-width: 520px; margin-inline: auto; } }
.plan {
  position: relative;
  display: flex;
  flex-direction: column;
}
.plan.is-featured {
  border-color: var(--primary);
  box-shadow: 0 0 0 1px var(--primary), var(--shadow);
}
.plan .badge {
  position: absolute;
  top: -0.8rem; left: 1.5rem;
  background: var(--accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  letter-spacing: 0.05em;
}
.plan h3 { font-size: 1.25rem; }
.plan .for { color: var(--muted); font-size: 0.9rem; margin: 0.25rem 0 1rem; min-height: 2.6em; }
.plan .price { display: flex; align-items: baseline; gap: 0.25rem; }
.plan .price .amount { font-family: var(--mono); font-size: 2.4rem; font-weight: 600; line-height: 1; }
.plan .price .unit { color: var(--muted); font-size: 0.9rem; }
.plan .price-note { color: var(--muted); font-size: 0.8rem; margin-top: 0.4rem; min-height: 1.4em; }
.plan .price-note.is-hidden { visibility: hidden; }
.plan .btn { margin: 1.25rem 0 1.5rem; }
.plan ul { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); padding-top: 1rem; }
.plan li { display: flex; gap: 0.5rem; align-items: flex-start; padding: 0.35rem 0; color: var(--text); }
.plan li::before {
  content: "";
  flex: none;
  width: 18px; height: 18px;
  margin-top: 0.25rem;
  border-radius: 50%;
  background: var(--ok-soft);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Cpath d='M4 9.5l3 3 7-7' fill='none' stroke='%232f6b3a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
.plan li.no { color: var(--muted); }
.plan li.no::before {
  background: var(--bg-alt);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Cpath d='M5 9h8' fill='none' stroke='%235a626d' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
}

.compare { overflow-x: auto; margin-top: 3rem; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); }
.compare table { border-collapse: collapse; width: 100%; min-width: 640px; }
.compare th, .compare td { padding: 0.8rem 1rem; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
.compare thead th { background: var(--bg-alt); font-size: 0.9rem; }
.compare th[scope="row"] { font-weight: 500; width: 34%; }
.compare tbody tr:last-child td, .compare tbody tr:last-child th { border-bottom: 0; }
.compare td { text-align: center; }
.compare td .y { color: var(--ok); font-weight: 700; }
.compare td .n { color: var(--muted); }
.compare caption { text-align: left; padding: 1rem 1rem 0.5rem; font-weight: 700; }
.compare-hint { display: none; color: var(--muted); font-size: 0.8rem; margin-top: 0.5rem; }
@media (max-width: 767px) { .compare-hint { display: block; } }

/* ---------- Accordion (FAQ) ---------- */
.faq { max-width: 48rem; }
.faq-item { border-top: 1px solid var(--line); }
.faq-item:last-child { border-bottom: 1px solid var(--line); }
.faq-q {
  appearance: none;
  width: 100%;
  background: transparent;
  border: 0;
  text-align: left;
  font: inherit;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  padding: 1.1rem 3rem 1.1rem 0;
  cursor: pointer;
  position: relative;
  line-height: 1.5;
}
.faq-q::before {
  content: "Q";
  font-family: var(--mono);
  color: var(--accent);
  margin-right: 0.75rem;
}
.faq-q::after {
  content: "";
  position: absolute;
  right: 0.5rem; top: 50%;
  width: 10px; height: 10px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: translateY(-70%) rotate(45deg);
  transition: transform 0.2s;
}
.faq-q[aria-expanded="true"]::after { transform: translateY(-30%) rotate(-135deg); }
.faq-q:hover { color: var(--primary); }
.faq-a { padding: 0 0 1.25rem 1.9rem; color: var(--muted); }
.faq-a[hidden] { display: none; }

/* ---------- Cases ---------- */
.case-detail {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2.5rem;
  padding: 3rem 0;
  border-top: 1px solid var(--line);
}
.case-detail:last-of-type { border-bottom: 1px solid var(--line); }
@media (max-width: 800px) { .case-detail { grid-template-columns: 1fr; gap: 1.5rem; } }
.case-meta { position: sticky; top: 88px; align-self: start; }
.case-meta .industry { font-family: var(--mono); font-size: 0.8rem; color: var(--accent); letter-spacing: 0.08em; }
.case-meta h3 { font-size: 1.5rem; margin: 0.35rem 0 0.25rem; }
.case-meta .place { color: var(--muted); font-size: 0.9rem; }
.case-meta dl {
  margin: 1.25rem 0 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem 1rem;
  font-size: 0.9rem;
}
.case-meta dt { color: var(--muted); }
.case-meta dd { margin: 0; }
.case-meta .stamp { margin-top: 1.5rem; }
.case-body h4 {
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}
.case-body h4::before {
  content: "";
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 1px;
  transform: rotate(45deg);
}
.case-body .block + .block { margin-top: 1.75rem; }
.case-body p { color: var(--muted); }
.case-body ul { color: var(--muted); padding-left: 1.2rem; margin: 0.25rem 0 0; }
.case-body .results { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; margin-top: 0.5rem; }
@media (max-width: 520px) { .case-body .results { grid-template-columns: 1fr; } }
.case-body .results div {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
}
.case-body .results b { font-family: var(--mono); font-size: 1.6rem; color: var(--primary); display: block; line-height: 1.1; }
.case-body .results span { color: var(--muted); font-size: 0.85rem; }

.chart-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.chart-card .chart-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.5rem 1rem; align-items: baseline; margin-bottom: 1rem; }
.chart-card h3 { font-size: 1.15rem; }
.chart-card .chart-note { color: var(--muted); font-size: 0.85rem; }
.chart-card .chart-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.chart-card svg { width: 100%; height: auto; }
@media (max-width: 640px) {
  .chart-card .chart-scroll svg { min-width: 640px; }
  .chart-card .chart-scroll::after { content: "グラフは横にスクロールできます"; display: block; color: var(--muted); font-size: 0.8rem; margin-top: 0.25rem; }
}
.chart-legend { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 0.75rem; font-size: 0.85rem; color: var(--muted); }
.chart-legend span { display: inline-flex; align-items: center; gap: 0.4rem; }
.chart-legend i { width: 14px; height: 4px; border-radius: 2px; display: inline-block; }
.chart-table { margin-top: 1rem; }
.chart-table summary { cursor: pointer; color: var(--primary); font-weight: 700; font-size: 0.9rem; }
.chart-table table { border-collapse: collapse; width: 100%; font-size: 0.85rem; margin-top: 0.75rem; }
.chart-table th, .chart-table td { border: 1px solid var(--line); padding: 0.3rem 0.4rem; text-align: center; font-family: var(--mono); }
.chart-table th[scope="row"] { text-align: left; font-family: var(--font); }

/* SVG chart colors */
.chart .grid { stroke: var(--line); stroke-width: 1; }
.chart .axis { stroke: var(--line-strong); stroke-width: 1; }
.chart .tick { fill: var(--muted); font-family: var(--mono); font-size: 11px; }
.chart .line-total { fill: none; stroke: var(--accent); stroke-width: 3; stroke-linejoin: round; stroke-linecap: round; }
.chart .line-total-area { fill: var(--accent); opacity: 0.08; }
.chart .dot { fill: var(--surface); stroke: var(--accent); stroke-width: 2.5; }
.chart .marker { stroke: var(--primary); stroke-width: 1.5; stroke-dasharray: 4 4; }
.chart .marker-label { fill: var(--primary); font-size: 11px; font-weight: 700; }
.chart .value-label { fill: var(--text); font-family: var(--mono); font-size: 11px; font-weight: 600; }
.chart .bar { fill: var(--primary-soft); }
.chart .bar-label { fill: var(--muted); font-family: var(--mono); font-size: 10px; }

/* ---------- Contact form ---------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 3rem;
  align-items: start;
}
@media (max-width: 860px) { .contact-layout { grid-template-columns: 1fr; gap: 2rem; } }

.form-card { padding: 2rem; }
@media (max-width: 480px) { .form-card { padding: 1.25rem; } }
.field { margin-bottom: 1.35rem; }
.field label, .field .legend {
  display: block;
  font-weight: 700;
  margin-bottom: 0.4rem;
}
.req {
  display: inline-block;
  font-size: 0.7rem;
  color: #fff;
  background: var(--accent);
  padding: 0.05rem 0.4rem;
  border-radius: 3px;
  margin-left: 0.5rem;
  vertical-align: middle;
  font-weight: 700;
}
.opt {
  display: inline-block;
  font-size: 0.7rem;
  color: var(--muted);
  border: 1px solid var(--line-strong);
  padding: 0.02rem 0.4rem;
  border-radius: 3px;
  margin-left: 0.5rem;
  vertical-align: middle;
}
.field .hint { color: var(--muted); font-size: 0.85rem; margin-bottom: 0.4rem; }
.input, .select, .textarea {
  width: 100%;
  font: inherit;
  font-size: 1rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: 0.75rem 0.9rem;
  min-height: 48px;
}
.textarea { min-height: 140px; resize: vertical; }
.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 8l5 5 5-5' fill='none' stroke='%235a626d' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.8rem center;
  background-size: 18px;
  padding-right: 2.5rem;
}
.input:focus-visible, .select:focus-visible, .textarea:focus-visible {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}
.field.is-invalid .input,
.field.is-invalid .select,
.field.is-invalid .textarea { border-color: var(--accent); }
.error {
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 700;
  margin-top: 0.4rem;
  display: flex;
  align-items: flex-start;
  gap: 0.35rem;
}
.error:empty { display: none; }
.error::before { content: "!"; font-family: var(--mono); flex: none; width: 1.1em; height: 1.1em; border-radius: 50%; background: var(--accent); color: #fff; display: inline-grid; place-items: center; font-size: 0.75rem; margin-top: 0.25em; }

.checkbox-field {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  padding: 0.9rem 1rem;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.checkbox-field input { width: 20px; height: 20px; margin: 0.15rem 0 0; flex: none; accent-color: var(--accent); }
.checkbox-field label { font-weight: 500; margin: 0; }
.checkbox-field a { text-decoration: underline; }

.form-summary {
  border: 1px solid var(--accent);
  background: var(--accent-soft);
  color: var(--text);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
}
.form-summary[hidden] { display: none; }
.form-summary strong { display: block; margin-bottom: 0.25rem; color: var(--accent); }
.form-summary ul { margin: 0; padding-left: 1.2rem; }
.form-summary a { color: var(--accent); }

.form-done { text-align: center; padding: 2.5rem 1rem; }
.form-done[hidden] { display: none; }
.form-done .stamp-wrap { margin: 0 auto 1.25rem; width: 120px; }
.form-done h2 { font-size: 1.5rem; margin-bottom: 0.75rem; }
.form-done p { color: var(--muted); }
.form-done .next { text-align: left; max-width: 26rem; margin: 1.5rem auto 0; padding-left: 1.2rem; color: var(--muted); }

.contact-aside .card + .card { margin-top: 1.25rem; }
.contact-aside h3 { font-size: 1.05rem; margin-bottom: 0.75rem; }
.contact-aside ol { margin: 0; padding-left: 1.3rem; color: var(--muted); }
.contact-aside li + li { margin-top: 0.4rem; }
.contact-aside .tel { font-family: var(--mono); font-size: 1.4rem; color: var(--text); font-weight: 600; }

/* ---------- Stamp (検印) ---------- */
.stamp {
  display: inline-grid;
  place-items: center;
  width: 92px; height: 92px;
  border: 3px double var(--accent);
  border-radius: 50%;
  color: var(--accent);
  font-weight: 700;
  font-size: 0.85rem;
  line-height: 1.25;
  text-align: center;
  transform: rotate(-8deg);
  opacity: 0.9;
}
.stamp small { font-family: var(--mono); font-size: 0.6rem; font-weight: 500; }

/* ---------- Utilities ---------- */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2.5rem; }
.center { text-align: center; }
.text-muted { color: var(--muted); }
.small { font-size: 0.875rem; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}