/* Hallmark · macrostructure: Workbench · H2 hero knobs: ratio=5/7, proof=right dashboard, divider=negative space
 * theme: custom · vibe: "bright accounting SaaS, blue, mint" · paper: oklch(98% 0.009 252) · accent: oklch(55% 0.205 260)
 * display/body: Noto Sans JP · axes: light / neutral-sans / cool
 * studied: no · context: explicit image reference · v1.1.0
 * pre-emit critique: P5 H4 E4 S5 R4 V4
 */

:root {
  --color-paper: oklch(98% 0.009 252);
  --color-paper-alt: oklch(96% 0.019 252);
  --color-card: oklch(99% 0.004 252);
  --color-card-soft: oklch(97% 0.011 252);
  --color-line: oklch(90% 0.018 248);
  --color-line-strong: oklch(82% 0.04 248);
  --color-ink: oklch(19% 0.045 258);
  --color-ink-soft: oklch(45% 0.055 256);
  --color-ink-muted: oklch(58% 0.043 255);
  --color-accent: oklch(55% 0.205 260);
  --color-accent-strong: oklch(47% 0.23 260);
  --color-accent-soft: oklch(92% 0.055 256);
  --color-accent-wash: oklch(96% 0.04 254);
  --color-mint: oklch(67% 0.17 162);
  --color-mint-strong: oklch(54% 0.17 160);
  --color-mint-soft: oklch(94% 0.055 160);
  --color-danger: oklch(57% 0.215 28);
  --color-danger-soft: oklch(94% 0.052 24);
  --color-warn: oklch(72% 0.17 73);
  --color-warn-soft: oklch(95% 0.08 83);
  --color-focus: oklch(64% 0.2 260);
  --color-shadow: oklch(42% 0.072 256 / 18%);
  --color-shadow-soft: oklch(42% 0.072 256 / 10%);

  --font-display: "Noto Sans JP", system-ui, sans-serif;
  --font-body: "Noto Sans JP", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --text-xs: 0.76rem;
  --text-sm: 0.88rem;
  --text-md: 1rem;
  --text-lg: 1.13rem;
  --text-xl: 1.32rem;
  --text-2xl: 1.74rem;
  --text-3xl: 2.24rem;
  --text-4xl: 3.18rem;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  --radius-sm: 0.38rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.5rem;
  --radius-pill: 999px;

  --shadow-card: 0 1.25rem 3.5rem var(--color-shadow-soft), 0 0.25rem 1rem oklch(42% 0.072 256 / 8%);
  --shadow-raised: 0 1.6rem 4rem var(--color-shadow), 0 0.35rem 1rem oklch(42% 0.072 256 / 10%);
  --shadow-button: 0 0.8rem 1.6rem oklch(55% 0.205 260 / 24%);

  --ease-standard: cubic-bezier(0.2, 0, 0, 1);
  --ease-emphasized: cubic-bezier(0.2, 0, 0, 1.15);
  --duration-fast: 150ms;
  --duration-medium: 240ms;

  --z-nav: 20;
}

* {
  box-sizing: border-box;
}

html {
  overflow-x: clip;
  scroll-behavior: smooth;
  background: var(--color-paper);
}

body {
  margin: 0;
  overflow-x: clip;
  background:
    linear-gradient(125deg, var(--color-accent-wash) 0 18rem, transparent 18rem 100%),
    linear-gradient(330deg, var(--color-paper-alt) 0 26rem, var(--color-paper) 26rem 100%);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-md);
  letter-spacing: 0;
  line-height: 1.75;
  text-rendering: geometricPrecision;
}

body::selection {
  background: var(--color-accent-soft);
  color: var(--color-ink);
}

img,
svg {
  display: block;
}

img {
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select {
  font: inherit;
}

button {
  border: 0;
}

.section-shell {
  width: min(100% - 2rem, 1180px);
  margin-inline: auto;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  min-height: 5rem;
  padding: 0 var(--space-8);
  border-bottom: 1px solid var(--color-line);
  background: color-mix(in oklch, var(--color-card) 92%, transparent);
  backdrop-filter: blur(18px);
}

.brand,
.mini-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  min-width: 0;
}

.brand {
  width: fit-content;
}

.brand-logo {
  display: block;
  width: clamp(9.6rem, 13vw, 12.4rem);
  height: auto;
}

.brand-logo-mini {
  width: 5.4rem;
}

.brand strong,
.mini-brand strong {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  line-height: 1.1;
}

.brand small {
  display: block;
  margin-top: 0.16rem;
  color: var(--color-ink-muted);
  font-size: var(--text-xs);
  line-height: 1.2;
}

.brand-mark {
  display: grid;
  width: 2.8rem;
  height: 2.8rem;
  place-items: center;
  border: 1px solid oklch(79% 0.1 260);
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-strong));
  color: var(--color-card);
  box-shadow: var(--shadow-button);
  flex: 0 0 auto;
}

.brand-mark svg,
.brand-mark img {
  width: 1.55rem;
  height: 1.55rem;
  fill: currentColor;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.small-mark {
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-sm);
  box-shadow: none;
}

.small-mark svg,
.small-mark img {
  width: 1.12rem;
  height: 1.12rem;
}

.small-mark img {
  width: 100%;
  height: 100%;
}

.nav-links,
.nav-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-8);
}

.nav-links {
  justify-content: center;
  color: var(--color-ink-soft);
  font-weight: 700;
}

.nav-links a,
.text-link {
  transition: color var(--duration-fast) var(--ease-standard);
}

.nav-links a:hover,
.text-link:hover {
  color: var(--color-accent);
}

.text-link {
  color: var(--color-ink);
  font-weight: 700;
}

/* モバイルメニュー: 860px 以下でのみ表示 */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-card);
  color: var(--color-ink);
  cursor: pointer;
}

.nav-toggle svg {
  width: 1.5rem;
  height: 1.5rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}

.nav-toggle .nav-toggle-close,
.nav-toggle[aria-expanded="true"] .nav-toggle-open {
  display: none;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-close {
  display: block;
}

.mobile-nav {
  display: none;
  position: sticky;
  top: 4.5rem;
  z-index: var(--z-nav);
  flex-direction: column;
  padding: var(--space-3) var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-card);
  box-shadow: 0 12px 24px -18px oklch(20% 0.04 250 / 0.5);
}

.mobile-nav a {
  display: flex;
  align-items: center;
  min-height: 3rem;
  padding-inline: var(--space-2);
  border-radius: var(--radius-md);
  color: var(--color-ink);
  font-weight: 700;
}

.mobile-nav a:hover {
  background: var(--color-card-soft);
  color: var(--color-accent);
}

.mobile-nav-login {
  margin-top: var(--space-2);
  border-top: 1px solid var(--color-line);
  border-radius: 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.28rem;
  min-width: 8rem;
  padding: 0 var(--space-6);
  border-radius: var(--radius-md);
  font-weight: 700;
  line-height: 1.2;
  transition:
    transform var(--duration-fast) var(--ease-standard),
    box-shadow var(--duration-fast) var(--ease-standard),
    border-color var(--duration-fast) var(--ease-standard),
    background-color var(--duration-fast) var(--ease-standard);
}

.button:hover {
  transform: translateY(-1px);
}

.button:focus-visible,
a:focus-visible,
summary:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.button.primary {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-strong));
  color: var(--color-card);
  box-shadow: var(--shadow-button);
}

.button.secondary,
.button.ghost {
  border: 1px solid var(--color-line-strong);
  background: var(--color-card);
  color: var(--color-accent);
}

.button.ghost {
  color: var(--color-ink);
}

.button.small {
  min-height: 2.9rem;
  min-width: 6.5rem;
  padding-inline: var(--space-5);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(34rem, 1.1fr);
  gap: var(--space-10);
  align-items: center;
  padding: var(--space-16) 0 var(--space-10);
}

.hero-copy {
  max-width: 42rem;
}

.eyebrow {
  margin: 0 0 var(--space-4);
  color: var(--color-accent);
  font-weight: 800;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  min-width: 0;
  color: var(--color-ink);
  font-family: var(--font-display);
  letter-spacing: 0;
  line-height: 1.18;
  overflow-wrap: anywhere;
}

h1 {
  margin-bottom: var(--space-5);
  font-size: var(--text-4xl);
  font-weight: 800;
}

h1 span {
  color: var(--color-accent);
  white-space: nowrap;
}

h2 {
  margin-bottom: var(--space-4);
  font-size: var(--text-3xl);
  font-weight: 800;
}

h3 {
  margin-bottom: var(--space-3);
  font-size: var(--text-xl);
  font-weight: 700;
}

.text-nowrap {
  white-space: nowrap;
}

.hero-lede,
.section-intro p,
.security-copy p,
.download-cta p,
.final-cta p {
  color: var(--color-ink-soft);
  font-size: var(--text-lg);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin: var(--space-8) 0 var(--space-4);
}

.hero-actions.center {
  justify-content: center;
}

.trust-list {
  display: grid;
  gap: var(--space-3);
  padding: 0;
  margin: var(--space-5) 0 0;
  color: var(--color-ink);
  font-weight: 700;
  list-style: none;
}

.trust-list li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.check-icon {
  display: grid;
  width: 1.45rem;
  height: 1.45rem;
  place-items: center;
  border-radius: var(--radius-pill);
  background: var(--color-mint);
  color: var(--color-card);
  flex: 0 0 auto;
}

.check-icon svg {
  width: 1rem;
  height: 1rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.8;
}

.hero-workbench {
  display: grid;
  grid-template-columns: 7.15rem minmax(0, 1fr);
  justify-self: end;
  width: 100%;
  max-width: 35.6rem;
  min-width: 0;
  min-height: 22.9rem;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-card);
  box-shadow: var(--shadow-raised);
}

.workbench-sidebar {
  display: flex;
  flex-direction: column;
  gap: 0.32rem;
  padding: 0.62rem 0.48rem;
  border-right: 1px solid var(--color-line);
  background: linear-gradient(180deg, var(--color-card), var(--color-card-soft));
}

.mini-brand {
  margin-bottom: 0.42rem;
  padding-inline: 0.25rem;
}

.mini-brand .brand-logo {
  flex: 0 0 auto;
}

.mini-brand strong {
  font-size: var(--text-sm);
}

.side-item {
  display: flex;
  align-items: center;
  gap: 0.22rem;
  min-width: 0;
  min-height: 1.72rem;
  overflow: hidden;
  padding: 0 0.25rem;
  border-radius: var(--radius-sm);
  color: var(--color-ink-soft);
  font-size: 0.64rem;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  transition:
    background-color var(--duration-fast) var(--ease-standard),
    color var(--duration-fast) var(--ease-standard);
}

.side-item svg {
  width: 0.68rem;
  height: 0.68rem;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.side-item span {
  flex: 1 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.side-item.active,
.side-item:hover {
  background: var(--color-accent);
  color: var(--color-card);
}

.workbench-main {
  min-width: 0;
  padding: 0.82rem;
}

.dashboard-head,
.table-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.dashboard-head > div,
.table-title > strong {
  min-width: 0;
}

.panel-label {
  margin-bottom: var(--space-1);
  color: var(--color-ink-muted);
  font-size: 0.66rem;
  font-weight: 800;
}

.dashboard-head h2 {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.25;
}

.icon-button {
  display: grid;
  width: 1.78rem;
  height: 1.78rem;
  place-items: center;
  border-radius: var(--radius-md);
  background: var(--color-accent);
  color: var(--color-card);
  box-shadow: var(--shadow-button);
}

.icon-button svg {
  width: 0.78rem;
  height: 0.78rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 2.4;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.48rem;
  margin: 0.78rem 0;
}

.metric,
.problem-card,
.feature-card,
.price-card,
.tour-step,
.comparison-card,
.flow-grid article,
.download-card {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-card);
  box-shadow: var(--shadow-card);
}

.metric {
  min-width: 0;
  min-height: 4.9rem;
  padding: 0.58rem;
}

.metric p,
.metric small,
.price-card p,
.download-card small {
  margin: 0;
  color: var(--color-ink-muted);
  line-height: 1.45;
}

.metric p {
  font-size: 0.65rem;
}

.metric small {
  display: block;
  overflow: hidden;
  font-size: 0.6rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.metric strong {
  display: block;
  margin-top: var(--space-1);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.15;
}

.metric-icon,
.card-icon {
  display: grid;
  place-items: center;
  border-radius: var(--radius-pill);
  flex: 0 0 auto;
}

.metric-icon {
  width: 1.45rem;
  height: 1.45rem;
  margin-bottom: 0.32rem;
}

.metric-icon svg,
.card-icon svg {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.2;
  vector-effect: non-scaling-stroke;
}

.metric-icon svg {
  width: 0.72rem;
  height: 0.72rem;
}

.card-icon {
  width: 3rem;
  height: 3rem;
  margin-bottom: var(--space-4);
}

.card-icon svg {
  width: 1.45rem;
  height: 1.45rem;
}

.metric-icon.mint,
.card-icon.mint {
  background: var(--color-mint-soft);
  color: var(--color-mint-strong);
}

.metric-icon.blue,
.card-icon.blue {
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.metric-icon.warn,
.card-icon.warn {
  background: var(--color-warn-soft);
  color: var(--color-warn);
}

.card-icon.danger {
  background: var(--color-danger-soft);
  color: var(--color-danger);
}

.review-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(12rem, 0.95fr);
  gap: 0.65rem;
  align-items: stretch;
}

.receipt-preview {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-card-soft);
}

.receipt-preview img {
  width: 100%;
  height: 10.3rem;
  object-fit: cover;
}

.receipt-preview figcaption {
  padding: 0.48rem 0.62rem;
  color: var(--color-ink-soft);
  font-size: 0.66rem;
  font-weight: 700;
  line-height: 1.35;
}

.table-panel {
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-card);
}

.table-title {
  padding: 0.62rem;
  border-bottom: 1px solid var(--color-line);
}

.table-title strong {
  font-size: 0.82rem;
}

.table-title span {
  padding: 0.12rem 0.52rem;
  border-radius: var(--radius-pill);
  background: var(--color-warn-soft);
  color: oklch(56% 0.14 73);
  font-size: 0.62rem;
  font-weight: 800;
}

table {
  width: 100%;
  border-collapse: collapse;
  table-layout: fixed;
  font-size: 0.66rem;
}

th,
td {
  overflow: hidden;
  padding: 0.38rem 0.5rem;
  border-bottom: 1px solid var(--color-line);
  text-align: left;
  text-overflow: ellipsis;
  white-space: nowrap;
}

th:nth-child(1),
td:nth-child(1) {
  width: 24%;
}

th:nth-child(2),
td:nth-child(2) {
  width: 38%;
}

th:nth-child(3),
td:nth-child(3) {
  width: 38%;
}

th {
  background: var(--color-card-soft);
  color: var(--color-ink-muted);
  font-size: var(--text-xs);
}

td:last-child {
  color: var(--color-mint-strong);
  font-family: var(--font-mono);
  font-weight: 700;
  text-align: right;
}

.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
  padding: var(--space-5);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-card);
  box-shadow: var(--shadow-card);
}

.stat-strip div {
  padding: var(--space-3) var(--space-4);
  border-left: 3px solid var(--color-accent);
}

.stat-strip strong {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  line-height: 1.1;
}

.stat-strip span {
  display: block;
  margin-top: var(--space-2);
  color: var(--color-ink-soft);
  font-weight: 700;
}

.section-intro {
  max-width: 46rem;
  margin-bottom: var(--space-8);
}

.section-intro.compact {
  max-width: 58rem;
}

.problem-section,
.tour,
.features,
.invoice-assist,
.flow,
.pricing,
.faq {
  padding: var(--space-20) 0 0;
}

.problem-grid,
.feature-grid,
.flow-grid,
.download-grid {
  display: grid;
  gap: var(--space-4);
}

.problem-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.problem-card,
.feature-card,
.tour-step,
.flow-grid article {
  padding: var(--space-6);
}

.problem-card p,
.feature-card p,
.tour-step p,
.flow-grid p,
.comparison-card li,
.faq p {
  color: var(--color-ink-soft);
}

.request-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(22rem, 0.8fr);
  gap: var(--space-8);
  align-items: center;
  margin-top: var(--space-12);
  padding: var(--space-8);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-card);
  box-shadow: var(--shadow-card);
}

.request-section .section-intro {
  margin-bottom: 0;
}

.lead-form {
  display: grid;
  gap: var(--space-4);
}

label {
  display: grid;
  gap: var(--space-2);
  color: var(--color-ink);
  font-weight: 800;
}

input,
select {
  width: 100%;
  min-height: 3.2rem;
  padding: 0 var(--space-4);
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-md);
  background: var(--color-card-soft);
  color: var(--color-ink);
  transition:
    border-color var(--duration-fast) var(--ease-standard),
    background-color var(--duration-fast) var(--ease-standard);
}

input:hover,
select:hover,
input:focus,
select:focus {
  border-color: var(--color-accent);
  background: var(--color-card);
}

.mail-fallback {
  display: grid;
  gap: var(--space-3);
  justify-items: start;
  margin-top: var(--space-4);
  padding: var(--space-4);
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-md);
  background: var(--color-card-soft);
}

.mail-fallback-title {
  color: var(--color-ink);
  font-weight: 800;
}

.mail-fallback-address {
  font-family: "IBM Plex Mono", ui-monospace, monospace;
  font-weight: 600;
  color: var(--color-accent);
}

.before-after {
  padding-top: var(--space-20);
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.comparison-card {
  padding: var(--space-8);
}

.comparison-card h3 {
  margin-bottom: var(--space-5);
}

.comparison-card ol {
  display: grid;
  gap: var(--space-3);
  padding-left: 1.25rem;
  margin: 0;
  font-weight: 700;
}

.comparison-card.accent {
  border-color: oklch(79% 0.1 260);
  background: linear-gradient(180deg, var(--color-card), var(--color-accent-soft));
}

.comparison-card.accent li::marker {
  color: var(--color-accent);
  font-weight: 800;
}

.tour-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
}

.tour-step span,
.flow-grid span {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  margin-bottom: var(--space-5);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: var(--color-card);
  font-family: var(--font-mono);
  font-weight: 700;
}

.feature-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.feature-card {
  min-height: 15rem;
}

.feature-card.wide {
  grid-column: span 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-content: space-between;
  background: linear-gradient(135deg, oklch(23% 0.055 258), oklch(33% 0.11 260));
}

.feature-card.wide h3,
.feature-card.wide p {
  color: var(--color-card);
}

.feature-card.wide .card-icon {
  background: oklch(98% 0.009 252 / 14%);
  color: var(--color-card);
}

.model-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

.model-chips span {
  padding: 0.4rem 0.7rem;
  border: 1px solid oklch(98% 0.009 252 / 22%);
  border-radius: var(--radius-pill);
  color: var(--color-card);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}

.invoice-assist .section-intro {
  max-width: 54rem;
}

.invoice-flow-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
}

.invoice-flow-step {
  display: grid;
  grid-template-rows: auto 1fr;
  overflow: hidden;
  min-height: 31rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-card);
  box-shadow: var(--shadow-card);
}

.invoice-mini-screen {
  display: grid;
  gap: var(--space-3);
  align-content: start;
  min-height: 14.5rem;
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-line);
  background: linear-gradient(145deg, var(--color-accent-wash), var(--color-card));
}

.invoice-mini-bar {
  display: flex;
  align-items: center;
  min-width: 0;
  min-height: 1.5rem;
  gap: 0.28rem;
  padding: 0.24rem 0.48rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  background: oklch(99% 0.004 252 / 76%);
}

.invoice-mini-bar span {
  width: 0.44rem;
  height: 0.44rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--color-danger);
}

.invoice-mini-bar span:nth-child(2) {
  background: var(--color-warn);
}

.invoice-mini-bar span:nth-child(3) {
  background: var(--color-mint);
}

.invoice-mini-bar b {
  min-width: 0;
  margin-left: 0.22rem;
  overflow: hidden;
  color: var(--color-ink-muted);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.invoice-mini-table,
.invoice-candidate-panel,
.invoice-export-preview {
  display: grid;
  gap: var(--space-2);
  min-width: 0;
  padding: var(--space-3);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: oklch(99% 0.004 252 / 84%);
}

.invoice-mini-head,
.invoice-mini-row,
.invoice-candidate-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-2);
  align-items: center;
  min-width: 0;
}

.invoice-mini-head {
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-line);
  color: var(--color-ink-muted);
  font-size: 0.68rem;
  font-weight: 800;
}

.invoice-mini-row {
  min-height: 2rem;
  padding: 0.32rem 0;
  border-bottom: 1px solid var(--color-line);
}

.invoice-mini-row:last-child {
  border-bottom: 0;
}

.invoice-mini-row strong,
.invoice-candidate-row span,
.invoice-cache-list strong,
.invoice-cache-list span,
.invoice-export-preview code {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.invoice-mini-row strong,
.invoice-cache-list strong {
  color: var(--color-ink);
  font-size: 0.74rem;
  font-weight: 800;
}

.invoice-row-alert {
  margin-inline: -0.38rem;
  padding-inline: 0.38rem;
  border: 1px solid oklch(82% 0.08 24);
  border-radius: var(--radius-md);
  background: var(--color-danger-soft);
}

.invoice-mini-callout {
  margin: 0;
  padding: 0.6rem 0.7rem;
  border: 1px solid oklch(82% 0.06 248);
  border-radius: var(--radius-md);
  background: oklch(98% 0.018 248 / 86%);
  color: var(--color-ink);
  font-size: 0.74rem;
  font-weight: 800;
  line-height: 1.5;
}

.invoice-candidate-panel > strong {
  color: var(--color-ink);
  font-size: 0.82rem;
  line-height: 1.35;
}

.invoice-candidate-panel > small {
  color: var(--color-ink-soft);
  font-size: 0.68rem;
  font-weight: 800;
}

.invoice-candidate-row {
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-line);
}

.invoice-candidate-row span,
.invoice-cache-list span {
  color: var(--color-mint-strong);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 800;
}

.invoice-cache-list {
  display: grid;
  gap: var(--space-2);
  min-width: 0;
}

.invoice-cache-list div {
  display: grid;
  gap: 0.18rem;
  min-width: 0;
  padding: 0.64rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: oklch(99% 0.004 252 / 84%);
}

.invoice-cache-list em {
  justify-self: start;
}

.invoice-export-preview {
  align-content: start;
}

.invoice-export-preview code {
  display: block;
  padding: 0.46rem 0.52rem;
  border-radius: var(--radius-sm);
  background: var(--color-ink);
  color: var(--color-card);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  line-height: 1.45;
}

.invoice-status {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 1.48rem;
  max-width: 100%;
  padding: 0 0.5rem;
  border-radius: var(--radius-pill);
  font-size: 0.68rem;
  font-style: normal;
  font-weight: 800;
  line-height: 1;
  white-space: nowrap;
}

.invoice-status.success {
  background: var(--color-mint-soft);
  color: var(--color-mint-strong);
}

.invoice-status.warn {
  background: var(--color-warn-soft);
  color: oklch(55% 0.14 73);
}

.invoice-status.danger {
  background: var(--color-danger-soft);
  color: var(--color-danger);
}

.invoice-status.neutral {
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.invoice-flow-copy {
  display: grid;
  gap: var(--space-2);
  align-content: start;
  padding: var(--space-5);
}

.invoice-flow-copy > span {
  width: max-content;
  padding: 0.34rem 0.6rem;
  border-radius: var(--radius-pill);
  background: var(--color-accent-wash);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 800;
  line-height: 1;
}

.invoice-flow-copy h3 {
  margin: 0;
  font-size: var(--text-xl);
}

.invoice-flow-copy p {
  margin: 0;
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1.75;
}

.invoice-source-note {
  color: var(--color-ink-soft);
  max-width: 56rem;
  margin: var(--space-4) 0 0;
  font-size: var(--text-sm);
}

.invoice-source-note a {
  color: var(--color-accent);
  font-weight: 800;
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.security {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: var(--space-8);
  align-items: start;
  margin-top: var(--space-20);
  padding: var(--space-10);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-card), var(--color-mint-soft));
  box-shadow: var(--shadow-card);
}

.security-list {
  display: grid;
  gap: var(--space-4);
}

.security-list div {
  display: grid;
  gap: var(--space-2);
  padding: var(--space-5);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-card);
}

.security-list strong {
  font-family: var(--font-display);
  font-size: var(--text-lg);
}

.security-list span {
  color: var(--color-ink-soft);
}

.flow-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.price-card {
  padding: var(--space-8);
}

.price-card.featured {
  border-color: oklch(79% 0.1 260);
  background: linear-gradient(180deg, var(--color-card), var(--color-accent-soft));
}

.price-card h3 {
  margin: var(--space-2) 0;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: var(--text-4xl);
  line-height: 1;
}

.price-card span {
  color: var(--color-ink-muted);
  font-weight: 700;
}

.price-card ul {
  display: grid;
  gap: var(--space-3);
  padding: 0;
  margin: var(--space-6) 0 0;
  list-style: none;
}

.price-card li {
  display: flex;
  gap: var(--space-3);
  color: var(--color-ink-soft);
}

.price-card li::before {
  display: grid;
  width: 1.25rem;
  height: 1.25rem;
  place-items: center;
  border-radius: var(--radius-pill);
  background: var(--color-mint);
  color: var(--color-card);
  content: "";
  flex: 0 0 auto;
  font-size: var(--text-xs);
  font-weight: 900;
  line-height: 1;
}

.pricing-note {
  margin: var(--space-4) 0 0;
  color: var(--color-ink-soft);
}

.download-cta {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: var(--space-8);
  align-items: center;
  margin-top: var(--space-20);
  padding: var(--space-10);
  border-radius: var(--radius-lg);
  background: oklch(20% 0.05 258);
  box-shadow: var(--shadow-raised);
}

.download-cta h2,
.download-cta p {
  color: var(--color-card);
}

.download-cta .eyebrow {
  color: var(--color-mint);
}

.download-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.download-card {
  display: grid;
  align-content: start;
  min-height: 10rem;
  padding: var(--space-5);
  transition:
    transform var(--duration-fast) var(--ease-standard),
    border-color var(--duration-fast) var(--ease-standard);
}

.download-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.download-card strong {
  font-family: var(--font-display);
  font-size: var(--text-lg);
}

.faq-list {
  display: grid;
  gap: var(--space-3);
}

details {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-card);
  box-shadow: var(--shadow-card);
}

summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 4.4rem;
  padding: 0 var(--space-5);
  color: var(--color-ink);
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

summary::after {
  display: grid;
  width: 1.75rem;
  height: 1.75rem;
  place-items: center;
  border-radius: var(--radius-pill);
  background: var(--color-accent-soft);
  color: var(--color-accent);
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  line-height: 1;
}

details[open] summary::after {
  content: "-";
}

details p {
  margin: 0;
  padding: 0 var(--space-5) var(--space-5);
}

.final-cta {
  margin-top: var(--space-20);
  padding: var(--space-16) var(--space-8);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-card), var(--color-accent-soft));
  text-align: center;
  box-shadow: var(--shadow-card);
}

.site-footer {
  margin-top: var(--space-12);
  border-top: 1px solid var(--color-line);
  background: var(--color-card);
}

.footer-panel {
  display: grid;
  grid-template-columns: minmax(18rem, 1.05fr) minmax(0, 1.95fr);
  gap: var(--space-12);
  width: min(100% - 2rem, 1180px);
  margin-inline: auto;
  padding: var(--space-10) 0 var(--space-8);
}

.footer-company {
  display: grid;
  align-content: start;
  gap: var(--space-4);
}

.footer-brand {
  display: grid;
  gap: var(--space-2);
  width: fit-content;
  color: var(--color-ink);
}

.footer-brand-logo {
  width: 12.2rem;
}

.footer-brand strong {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  line-height: 1.15;
}

.footer-brand small {
  display: block;
  margin-top: 0.2rem;
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
  line-height: 1.3;
}

.footer-copy {
  max-width: 28rem;
  margin: 0;
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
  line-height: 1.75;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-8);
}

.footer-group {
  display: grid;
  align-content: start;
  gap: var(--space-2);
  min-width: 0;
}

.footer-group h3 {
  margin: 0 0 var(--space-3);
  color: var(--color-ink);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.2;
  text-transform: uppercase;
}

.footer-group a,
.footer-group span {
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
  font-weight: 700;
  line-height: 1.5;
}

.footer-group a {
  transition:
    color var(--duration-fast) var(--ease-standard),
    transform var(--duration-fast) var(--ease-standard);
}

.footer-group a:hover {
  color: var(--color-accent);
  transform: translateX(2px);
}

.footer-contact span {
  color: var(--color-ink-muted);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  width: min(100% - 2rem, 1180px);
  margin-inline: auto;
  padding: var(--space-5) 0 var(--space-8);
  border-top: 1px solid var(--color-line);
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
  font-weight: 700;
}

@keyframes fade-rise {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float-panel {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-6px);
  }
}

@keyframes scan-sweep {
  0% {
    transform: translateY(-120%);
  }

  34%,
  100% {
    transform: translateY(120%);
  }
}

@media (prefers-reduced-motion: no-preference) {
  .hero-copy {
    animation: fade-rise 560ms var(--ease-standard) both;
  }

  .hero-workbench {
    animation:
      fade-rise 720ms var(--ease-standard) 90ms both,
      float-panel 7s var(--ease-standard) 1s infinite;
  }

  .receipt-preview::after {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent, var(--color-accent-soft), transparent);
    content: "";
    opacity: 0.46;
    pointer-events: none;
    transform: translateY(-120%);
    animation: scan-sweep 4.8s var(--ease-standard) 1.2s infinite;
  }

  .reveal {
    opacity: 0;
    transform: translateY(16px);
    transition:
      opacity var(--duration-medium) var(--ease-standard),
      transform var(--duration-medium) var(--ease-standard);
    transition-delay: var(--reveal-delay, 0ms);
  }

  .reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1180px) {
  .site-nav {
    padding-inline: var(--space-5);
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: var(--space-12);
  }

  .hero-copy {
    max-width: 54rem;
  }

  .hero-workbench {
    grid-template-columns: 7.15rem minmax(0, 1fr);
    justify-self: center;
    width: min(100%, 36.8rem);
    max-width: 36.8rem;
  }

  .problem-grid,
  .tour-grid,
  .feature-grid,
  .invoice-flow-grid,
  .flow-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .flow-grid article:last-child {
    grid-column: span 2;
  }
}

@media (max-width: 860px) {
  :root {
    --text-4xl: 2.5rem;
    --text-3xl: 2rem;
    --text-2xl: 1.52rem;
  }

  body {
    background:
      linear-gradient(150deg, var(--color-accent-wash) 0 13rem, transparent 13rem 100%),
      var(--color-paper);
  }

  .site-nav {
    grid-template-columns: 1fr auto;
    min-height: 4.5rem;
  }

  .nav-links,
  .text-link {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .mobile-nav[data-open="true"] {
    display: flex;
  }

  .nav-actions {
    gap: var(--space-3);
  }

  .hero {
    gap: var(--space-8);
    padding-top: var(--space-10);
  }

  .hero-workbench {
    grid-template-columns: 1fr;
    justify-self: stretch;
    width: 100%;
    max-width: none;
  }

  .workbench-sidebar {
    display: none;
  }

  .workbench-main {
    padding: var(--space-4);
  }

  .review-grid,
  .stat-strip,
  .request-section,
  .comparison-grid,
  .invoice-flow-grid,
  .security,
  .pricing-grid,
  .download-cta,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .metric-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-2);
  }

  .stat-strip {
    padding: var(--space-3);
  }

  .request-section,
  .security,
  .download-cta,
  .final-cta {
    padding: var(--space-6);
  }

  .invoice-flow-step {
    min-height: 0;
  }

  .invoice-flow-copy {
    min-height: 0;
  }

  .site-footer {
    display: grid;
  }

  .footer-panel {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .footer-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-contact {
    grid-column: span 2;
  }

  .footer-bottom {
    display: grid;
  }
}

@media (max-width: 560px) {
  :root {
    --text-4xl: 1.92rem;
    --text-3xl: 1.65rem;
    --text-2xl: 1.36rem;
    --text-xl: 1.18rem;
    --text-lg: 1rem;
  }

  .section-shell,
  .site-footer {
    width: min(100% - 1rem, 1180px);
  }

  .site-nav {
    padding-inline: var(--space-3);
  }

  .brand {
    gap: var(--space-2);
  }

  .brand-logo {
    width: 9.15rem;
  }

  .button {
    width: 100%;
    min-width: 0;
  }

  .button.small {
    width: auto;
    min-width: 5.7rem;
    padding-inline: var(--space-4);
  }

  .hero-actions {
    display: grid;
  }

  .hero-workbench {
    min-height: auto;
  }

  .dashboard-head {
    align-items: flex-start;
  }

  .dashboard-head h2 {
    font-size: 0.98rem;
    line-height: 1.32;
  }

  .icon-button {
    width: 2rem;
    height: 2rem;
  }

  .metric-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.42rem;
    margin: 0.72rem 0;
  }

  .metric {
    min-height: 4.65rem;
    padding: 0.48rem;
  }

  .metric p,
  .metric small {
    font-size: 0.62rem;
    line-height: 1.35;
  }

  .metric strong {
    font-size: 0.86rem;
  }

  .metric small {
    display: none;
  }

  .metric-icon {
    width: 1.42rem;
    height: 1.42rem;
  }

  .metric-icon svg {
    width: 0.68rem;
    height: 0.68rem;
  }

  .problem-grid,
  .tour-grid,
  .feature-grid,
  .invoice-flow-grid,
  .flow-grid,
  .download-grid {
    grid-template-columns: 1fr;
  }

  .flow-grid article:last-child,
  .feature-card.wide {
    grid-column: auto;
  }

  .receipt-preview img {
    height: 10rem;
  }

  .table-title {
    padding: 0.62rem;
  }

  table {
    font-size: 0.66rem;
  }

  th,
  td {
    padding: 0.38rem 0.5rem;
  }

  .comparison-card,
  .price-card,
  .problem-card,
  .feature-card,
  .invoice-flow-copy,
  .tour-step,
  .flow-grid article {
    padding: var(--space-5);
  }

  .site-footer nav {
    gap: var(--space-3);
  }

  .footer-panel {
    width: min(100% - 1rem, 1180px);
    gap: var(--space-6);
    padding: var(--space-8) 0 var(--space-6);
  }

  .footer-brand {
    align-items: flex-start;
  }

  .footer-brand-logo {
    width: 11rem;
  }

  .footer-brand strong {
    font-size: var(--text-lg);
  }

  .footer-links,
  .footer-contact {
    grid-template-columns: 1fr;
    grid-column: auto;
  }

  /* タップ領域の確保 */
  .footer-group a,
  .footer-contact a {
    display: flex;
    align-items: center;
    min-height: 2.75rem;
  }

  .footer-bottom {
    width: min(100% - 1rem, 1180px);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto;
    transition-duration: 1ms;
  }
}

/* ==========================================================
   準備中プレースホルダー（動画・画面イメージ・導入事例）
   実素材を配置したら hidden を外す。CSS の変更は不要。
   ========================================================== */

/* 画面イメージ */
.shot {
  margin: 0 0 var(--space-4);
}

.shot img {
  width: 100%;
  height: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  background: var(--color-card-soft);
}

.shot-pending,
.demo-video-pending {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 0 var(--space-4);
  padding: var(--space-4);
  border: 1px dashed var(--color-line-strong);
  border-radius: var(--radius-md);
  background: var(--color-card-soft);
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
  text-align: center;
}

/* 画面イメージを表示したら準備中テキストは隠す */
.shot:not([hidden]) + .shot-pending {
  display: none;
}

/* 操作デモ動画 */
.demo-video {
  margin: var(--space-8) 0 0;
}

.demo-video video {
  width: 100%;
  height: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-ink);
}

.demo-video figcaption {
  margin-top: var(--space-3);
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
  text-align: center;
}

.demo-video:not([hidden]) ~ .demo-video-pending {
  display: none;
}

.demo-video-pending {
  margin-top: var(--space-8);
}

/* 導入事例 */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
}

.case-card {
  padding: var(--space-8);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-card);
  box-shadow: var(--shadow-card);
}

.case-quote {
  margin: 0 0 var(--space-5);
  color: var(--color-ink);
  line-height: 1.85;
}

.case-meta {
  display: grid;
  gap: var(--space-1);
  margin: 0;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-line);
}

.case-meta strong {
  color: var(--color-ink);
}

.case-meta span {
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
}

@media (max-width: 860px) {
  .cases-grid {
    grid-template-columns: 1fr;
  }
}