/* ============================================================
   LeaseHub LP - style.css
   - 青基調 / 静的サイト
   - レスポンシブ対応（〜640 / 〜960 / 1024+）
   ============================================================ */

:root {
  --color-primary: #1d4ed8;
  --color-primary-strong: #1e40af;
  --color-primary-soft: #dbeafe;
  --color-primary-bg: #eff6ff;
  --color-text: #0f172a;
  --color-text-soft: #475569;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
  --color-border-strong: #cbd5e1;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-bg-elev: #ffffff;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 14px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 18px 40px rgba(29, 78, 216, 0.12);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 30px;
  --header-h: 64px;
  --container-w: 1120px;
  --container-narrow: 760px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN",
    "Yu Gothic UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.container {
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 20px;
}

.container--narrow {
  max-width: var(--container-narrow);
}

.text-accent {
  color: var(--color-primary);
}

.hide-sm {
  display: none;
}

@media (min-width: 640px) {
  .hide-sm {
    display: inline;
  }
}

/* ----------------------------- buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 18px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 14px;
  line-height: 1.4;
  border: 1px solid transparent;
  transition: background-color 0.18s ease, color 0.18s ease,
    border-color 0.18s ease, box-shadow 0.18s ease, transform 0.05s ease;
  white-space: nowrap;
}

.btn:active {
  transform: translateY(1px);
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
  background: var(--color-primary-strong);
}

.btn--ghost {
  color: var(--color-text);
  padding: 10px 14px;
}

.btn--ghost:hover {
  color: var(--color-primary);
}

.btn--outline {
  background: #fff;
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.btn--outline:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--link {
  color: var(--color-text-soft);
}

.btn--link:hover {
  color: var(--color-primary);
}

.btn--white {
  background: #fff;
  color: var(--color-primary-strong);
}

.btn--white:hover {
  background: var(--color-primary-bg);
}

.btn--outline-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}

.btn--outline-white:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn--lg {
  padding: 14px 24px;
  font-size: 15px;
  border-radius: 12px;
}

.btn--block {
  width: 100%;
}

/* ----------------------------- header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(8px);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.7);
}

.site-header__inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.site-header__brand img {
  height: 30px;
  width: auto;
}

.site-header__nav {
  display: none;
  gap: 28px;
  font-weight: 500;
  font-size: 14px;
  color: var(--color-text-soft);
}

.site-header__nav a {
  transition: color 0.18s ease;
}

.site-header__nav a:hover {
  color: var(--color-primary);
}

.site-header__cta {
  display: none;
  align-items: center;
  gap: 10px;
}

.site-header__menu {
  width: 40px;
  height: 40px;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: 8px;
}

.site-header__menu span {
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.site-header__menu[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header__menu[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.site-header__menu[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.site-header__mobile {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 8px 20px 16px;
  border-top: 1px solid var(--color-border);
  background: #fff;
}

.site-header__mobile[hidden] {
  display: none;
}

.site-header__mobile a {
  padding: 12px 8px;
  border-radius: 8px;
  font-weight: 500;
  font-size: 15px;
  color: var(--color-text);
}

.site-header__mobile a:hover {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.site-header__mobile .btn--primary {
  margin-top: 6px;
  color: #fff;
}

.site-header__mobile .btn--primary:hover {
  background: var(--color-primary-strong);
  color: #fff;
}

@media (min-width: 960px) {
  .site-header__nav,
  .site-header__cta {
    display: flex;
  }

  .site-header__menu {
    display: none;
  }

  .site-header__mobile {
    display: none !important;
  }
}

/* ----------------------------- hero */
.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #eff6ff 0%, #ffffff 70%);
  padding: 72px 0 88px;
}

.hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -120px;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(96, 165, 250, 0.4), transparent 70%);
  filter: blur(20px);
  pointer-events: none;
}

.hero__inner {
  display: grid;
  gap: 48px;
  align-items: center;
}

.hero__copy {
  position: relative;
  z-index: 1;
}

.hero__title {
  font-size: clamp(28px, 4.5vw, 44px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 16px 0 20px;
  font-weight: 700;
}

.hero__lead {
  color: var(--color-text-soft);
  font-size: 15px;
  line-height: 1.9;
  margin: 0;
  max-width: 560px;
}

.hero__buttons {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.hero__note {
  margin-top: 20px;
  font-size: 12px;
  color: var(--color-text-muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--color-primary-soft);
  color: var(--color-primary-strong);
  font-size: 12px;
  font-weight: 700;
}

.badge--solid {
  background: var(--color-primary);
  color: #fff;
}

.hero__visual {
  position: relative;
  width: 100%;
}

.hero__visual-bg {
  position: absolute;
  inset: -20px;
  background: radial-gradient(
    circle at 60% 50%,
    rgba(96, 165, 250, 0.2),
    transparent 70%
  );
  pointer-events: none;
  z-index: 0;
}

.hero__visual-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 10px;
  padding: 20px;
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(191, 219, 254, 0.6);
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.hero__visual-grid > img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: contain;
}

.hero__visual-phone {
  grid-column: 1;
  grid-row: 2 / span 2;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__visual-phone img {
  width: 100%;
  height: auto;
}

@media (min-width: 960px) {
  .hero__inner {
    grid-template-columns: 1.05fr 1fr;
    gap: 64px;
  }
}

/* ----------------------------- generic section */
.section {
  padding: 72px 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section__title {
  text-align: center;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.4;
  margin: 0 0 16px;
  font-weight: 700;
}

.section__lead {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 40px;
  color: var(--color-text-soft);
  font-size: 14px;
  line-height: 1.9;
}

.section__lead--left {
  text-align: left;
  margin-left: 0;
}

/* ----------------------------- cards (problems / solutions) */
.cards {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .cards--4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.18s ease, transform 0.18s ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card--feature {
  border-color: rgba(191, 219, 254, 0.9);
}

.card__icon {
  width: 64px;
  height: 64px;
}

.card__title {
  margin: 14px 0 6px;
  font-size: 16px;
  font-weight: 700;
}

.card__body {
  margin: 0;
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.8;
}

/* ----------------------------- screen intro */
.screen {
  margin-top: 24px;
  display: grid;
  gap: 36px;
  align-items: center;
}

@media (min-width: 960px) {
  .screen {
    grid-template-columns: 1.1fr 1fr;
  }
}

.screen__panel {
  background: linear-gradient(135deg, #eff6ff 0%, #ffffff 70%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.screen__tiles {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
}

.screen__tile {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.screen__tile img {
  width: 52px;
  height: 52px;
}

.screen__tile span {
  font-size: 11px;
  color: var(--color-text-soft);
  text-align: center;
  line-height: 1.3;
}

.screen__stats {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.stat {
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  box-shadow: var(--shadow-sm);
}

.stat__label {
  margin: 0;
  font-size: 11px;
  color: var(--color-text-muted);
}

.stat__value {
  margin: 4px 0 0;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.stat__unit {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-muted);
  margin-left: 4px;
}

.screen__copy h3 {
  margin: 0 0 14px;
  font-size: 20px;
  font-weight: 700;
}

/* check list */
.check-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.check-list li {
  position: relative;
  padding-left: 26px;
  font-size: 14px;
  color: var(--color-text-soft);
  line-height: 1.7;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 14px;
  height: 10px;
  border-left: 2.5px solid var(--color-primary);
  border-bottom: 2.5px solid var(--color-primary);
  transform: rotate(-45deg);
}

/* ----------------------------- tabs */
.tabs {
  margin-top: 16px;
}

.tabs__triggers {
  display: inline-flex;
  padding: 4px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
  margin: 0 auto 40px;
}

.tabs__triggers {
  display: flex;
  justify-content: center;
}

.tabs__triggers {
  width: max-content;
  margin: 0 auto 40px;
}

.tabs__trigger {
  padding: 10px 22px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  color: var(--color-text-soft);
  transition: background-color 0.18s ease, color 0.18s ease;
}

.tabs__trigger.is-active {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.tabs__trigger:not(.is-active):hover {
  color: var(--color-primary);
}

.tabs__body {
  display: grid;
  gap: 32px;
  align-items: center;
}

@media (min-width: 960px) {
  .tabs__body {
    grid-template-columns: 1fr 1fr;
  }
}

.tabs__visual {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
}

.tabs__visual img {
  max-height: 380px;
  width: auto;
}

.tabs__panel h3 {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 700;
}

.tabs__panel p {
  margin: 0 0 18px;
  color: var(--color-text-soft);
  font-size: 14px;
  line-height: 1.9;
}

/* ----------------------------- flow */
.flow {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

@media (min-width: 640px) {
  .flow {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1024px) {
  .flow {
    grid-template-columns: repeat(7, 1fr);
  }
}

.flow img {
  width: 100%;
  height: auto;
}

/* ----------------------------- check tiles */
.checks {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .checks {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .checks {
    grid-template-columns: repeat(4, 1fr);
  }
}

.checks__item {
  position: relative;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 16px 18px 16px 48px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}

.checks__item::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 50%;
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: var(--color-primary-soft);
  transform: translateY(-50%);
}

.checks__item::after {
  content: "";
  position: absolute;
  left: 22px;
  top: 50%;
  width: 10px;
  height: 7px;
  border-left: 2px solid var(--color-primary);
  border-bottom: 2px solid var(--color-primary);
  transform: translateY(-72%) rotate(-45deg);
}

/* ----------------------------- plans */
.plans {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .plans {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .plans {
    grid-template-columns: repeat(4, 1fr);
  }
}

.plan {
  position: relative;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 22px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.plan--highlight {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-bg), var(--shadow-md);
}

.plan__badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.plan__name {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
}

.plan__price {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.plan__amount {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.plan__per {
  font-size: 13px;
  color: var(--color-text-muted);
}

.plan__note {
  margin: -8px 0 0;
  font-size: 12px;
  color: var(--color-text-muted);
}

.plan .check-list {
  flex: 1;
}

.plans__note {
  margin-top: 24px;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 12px;
}

/* ----------------------------- early access */
.early {
  background: linear-gradient(135deg, #eff6ff 0%, #ffffff 80%);
  border: 1px solid rgba(191, 219, 254, 0.9);
  border-radius: var(--radius-xl);
  padding: 40px 28px;
}

.early .section__title {
  text-align: left;
  margin-top: 16px;
}

.early .section__lead {
  margin: 16px 0 24px;
  text-align: left;
}

@media (min-width: 720px) {
  .early {
    padding: 56px 48px;
  }
}

/* ----------------------------- faq */
.faq {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-md);
  background: #fff;
  border: 1px solid var(--color-border);
  overflow: hidden;
}

.faq__item + .faq__item {
  border-top: 1px solid var(--color-border);
}

.faq__item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-weight: 700;
  font-size: 14px;
}

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

.faq__item summary::after {
  content: "+";
  width: 26px;
  height: 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-weight: 700;
  transition: transform 0.18s ease;
}

.faq__item[open] summary::after {
  transform: rotate(45deg);
}

.faq__item p {
  margin: 0;
  padding: 0 22px 20px;
  color: var(--color-text-soft);
  font-size: 14px;
  line-height: 1.85;
}

/* ----------------------------- final cta */
.final-cta {
  background: var(--color-primary);
  color: #fff;
}

.final-cta__inner {
  text-align: center;
  padding: 72px 0;
}

.final-cta__title {
  margin: 0 0 16px;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.5;
}

.final-cta__lead {
  margin: 0 auto 32px;
  max-width: 520px;
  color: rgba(255, 255, 255, 0.86);
  font-size: 14px;
  line-height: 1.85;
}

.final-cta__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

/* ----------------------------- footer */
.site-footer {
  background: #fff;
  border-top: 1px solid var(--color-border);
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 32px 20px;
  font-size: 13px;
  color: var(--color-text-soft);
}

@media (min-width: 720px) {
  .site-footer__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

.site-footer__brand img {
  height: 24px;
  width: auto;
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.site-footer__links a:hover {
  color: var(--color-primary);
}

.site-footer__copyright {
  margin: 0;
  font-size: 12px;
  color: var(--color-text-muted);
}