/* ==========================================================================
   HAKOBUN 製品案内サイト スタイルシート
   ========================================================================== */

:root {
  --color-main: #0B63CE;
  --color-main-dark: #084A9C;
  --color-accent: #19B7D8;
  --color-hero-bg: #EAF8FC;
  --color-text: #17202B;
  --color-text-sub: #5E6B78;
  --color-bg: #FFFFFF;
  --color-border: #DCE4EA;
  --color-success: #16845B;
  --color-warning: #B85C00;

  --font-jp: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
  --font-en: "Inter", "Noto Sans JP", sans-serif;

  --max-width: 1200px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-card: 0 8px 24px rgba(23, 32, 43, 0.08);
  --transition: 200ms ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-en);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

section {
  padding: 96px 0;
}

h1, h2, h3, h4 {
  font-family: var(--font-jp);
  line-height: 1.4;
  margin: 0;
}

h1 {
  font-size: clamp(34px, 5vw, 60px);
  font-weight: 800;
}

h2 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
}

h3 {
  font-size: 20px;
  font-weight: 700;
}

p {
  margin: 0;
  color: var(--color-text-sub);
}

.eyebrow {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-main);
  background: rgba(11, 99, 206, 0.08);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-head {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}

.section-head p {
  margin-top: 16px;
  font-size: 18px;
}

/* -- ボタン -------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  min-height: 44px;
}

.btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--color-main);
  color: #fff;
  box-shadow: 0 10px 24px rgba(11, 99, 206, 0.28);
}

.btn-primary:hover {
  background: var(--color-main-dark);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-main);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-main);
  transform: translateY(-2px);
}

.btn-block {
  width: 100%;
}

/* -- ヘッダー -------------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: var(--font-jp);
  font-weight: 800;
  font-size: 20px;
  color: var(--color-text);
}

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 9px;
}

.main-nav {
  display: flex;
  gap: 32px;
}

.main-nav a {
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-sub);
  transition: color var(--transition);
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--color-main);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-link {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-sub);
  text-decoration: none;
  padding: 8px 4px;
  transition: color var(--transition);
}

.lang-link:hover {
  color: var(--color-main);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after {
  content: "";
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  margin: 0 auto;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle span {
  margin: 6px auto;
}

.nav-toggle[aria-expanded="true"]::before {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"]::after {
  transform: translateY(-8px) rotate(-45deg);
}

/* -- ヒーロー -------------------------------------------------------------- */

.hero {
  background: linear-gradient(180deg, var(--color-hero-bg) 0%, #ffffff 100%);
  padding: 80px 0 100px;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-kicker {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-main-dark);
  margin-bottom: 16px;
}

.hero h1 {
  margin-bottom: 24px;
}

.hero-desc {
  font-size: 18px;
  max-width: 520px;
  margin-bottom: 32px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 20px;
}

.hero-note {
  font-size: 14px;
  color: var(--color-text-sub);
  max-width: 480px;
}

/* -- ヒーロー画像 -------------------------------------- */

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

.hero-visual img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 60px rgba(11, 99, 206, 0.2);
}

.phone-mock {
  width: 280px;
  height: 570px;
  border-radius: 40px;
  background: #0f1c2e;
  padding: 14px;
  box-shadow: 0 30px 60px rgba(11, 99, 206, 0.25);
  position: relative;
}

.phone-screen {
  width: 100%;
  height: 100%;
  border-radius: 28px;
  background: linear-gradient(160deg, #ffffff 0%, #EAF8FC 60%, #d7f0f7 100%);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  position: relative;
}

.phone-screen::after {
  content: "画面イメージ";
  position: absolute;
  bottom: 12px;
  right: 12px;
  font-size: 10px;
  color: var(--color-text-sub);
  background: rgba(255, 255, 255, 0.8);
  padding: 3px 8px;
  border-radius: 999px;
}

.mock-topbar {
  padding: 18px 16px 10px;
  font-family: var(--font-jp);
  font-weight: 700;
  font-size: 14px;
  color: var(--color-main-dark);
}

.mock-map {
  margin: 0 16px;
  height: 220px;
  border-radius: 16px;
  background:
    radial-gradient(circle at 30% 30%, rgba(11, 99, 206, 0.18), transparent 40%),
    radial-gradient(circle at 70% 60%, rgba(25, 183, 216, 0.22), transparent 45%),
    #dff1f6;
  position: relative;
  overflow: hidden;
}

.mock-pin {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50% 50% 50% 0;
  background: var(--color-main);
  transform: rotate(-45deg);
  box-shadow: 0 4px 8px rgba(11, 99, 206, 0.35);
}

.mock-pin.pin-1 { top: 40px; left: 60px; }
.mock-pin.pin-2 { top: 100px; left: 150px; background: var(--color-accent); }
.mock-pin.pin-3 { top: 150px; left: 90px; }

.mock-list {
  margin: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mock-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #ffffff;
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text);
  box-shadow: 0 2px 8px rgba(23, 32, 43, 0.06);
}

.mock-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.mock-dot.done { background: var(--color-success); }
.mock-dot.pending { background: var(--color-main); }
.mock-dot.absent { background: var(--color-warning); }

/* -- 特長セクション -------------------------------------------------------- */

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.benefit-card {
  padding: 36px 28px;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition), transform var(--transition);
}

.benefit-card:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-4px);
}

.benefit-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(11, 99, 206, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-main);
}

.benefit-card h3 {
  margin-bottom: 12px;
}

/* -- 機能カード -------------------------------------------------------- */

.features-section {
  background: #F7FAFD;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition), transform var(--transition);
}

.feature-card:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-4px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(25, 183, 216, 0.12);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.feature-card h3 {
  margin-bottom: 10px;
  font-size: 18px;
}

.feature-card p {
  font-size: 15px;
}

/* -- 使い方(ワークフロー) ------------------------------------------------- */

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  counter-reset: step;
  position: relative;
}

.workflow-step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-main);
  color: #fff;
  font-family: var(--font-jp);
  font-weight: 800;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.workflow-step h3 {
  margin-bottom: 10px;
}

.workflow-step p {
  font-size: 15px;
}

/* -- 実際の画面 -------------------------------------------------------- */

.screens-section {
  background: #F7FAFD;
}

.screens-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.screen-card {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--color-border);
  transition: box-shadow var(--transition), transform var(--transition);
}

.screen-card:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-4px);
}

.screen-card img {
  width: 100%;
  display: block;
}

.screen-card figcaption {
  padding: 14px 16px;
  font-family: var(--font-jp);
  font-size: 14px;
  font-weight: 700;
  text-align: center;
  color: var(--color-text);
}

@media (max-width: 900px) {
  .screens-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* -- 対応プラットフォーム -------------------------------------------------- */

.platforms-section {
  background: #F7FAFD;
}

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

.platform-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 36px;
  border: 1px solid var(--color-border);
}

.platform-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.platform-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(11, 99, 206, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-main);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 700;
  padding: 8px 16px;
  border-radius: 999px;
  margin-top: 20px;
}

.status-badge.status-ready {
  background: rgba(22, 132, 91, 0.1);
  color: var(--color-success);
}

.status-badge.status-pending {
  background: rgba(184, 92, 0, 0.1);
  color: var(--color-warning);
}

/* -- プラン -------------------------------------------------------- */

.plans-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  align-items: stretch;
}

.plan-card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
}

.plan-card.plan-highlight {
  border-color: var(--color-main);
  box-shadow: var(--shadow-card);
  position: relative;
}

.plan-badge {
  position: absolute;
  top: -14px;
  left: 32px;
  background: var(--color-main);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 999px;
}

.plan-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-main);
  margin-bottom: 8px;
}

.plan-price {
  font-family: var(--font-jp);
  font-size: 34px;
  font-weight: 800;
  margin-bottom: 20px;
}

.plan-price span {
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text-sub);
}

.plan-list {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-grow: 1;
}

.plan-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--color-text);
}

.plan-list li::before {
  content: "";
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  border-radius: 50%;
  background: var(--color-success);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center / 14px no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='black' d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center / 14px no-repeat;
}

.plans-note {
  margin-top: 28px;
  font-size: 14px;
  text-align: center;
}

/* -- FAQ -------------------------------------------------------- */

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: #fff;
  border: none;
  text-align: left;
  font-family: var(--font-jp);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  cursor: pointer;
}

.faq-question:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: -3px;
}

.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  position: relative;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--color-main);
  top: 50%;
  left: 50%;
  transition: transform var(--transition);
}

.faq-icon::before {
  width: 14px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.faq-icon::after {
  width: 2px;
  height: 14px;
  transform: translate(-50%, -50%);
}

.faq-question[aria-expanded="true"] .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg) scale(0);
}

.faq-answer {
  overflow: hidden;
  max-height: 0;
  transition: max-height 250ms ease;
  background: #FBFDFF;
}

.faq-answer p {
  padding: 0 24px 20px;
  font-size: 15px;
}

/* -- 最終CTA -------------------------------------------------------- */

.final-cta {
  background: linear-gradient(135deg, var(--color-main) 0%, var(--color-main-dark) 100%);
  color: #fff;
  text-align: center;
  border-radius: var(--radius-lg);
  padding: 72px 40px;
}

.final-cta h2 {
  color: #fff;
  margin-bottom: 16px;
}

.final-cta p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin: 0 auto 32px;
  font-size: 17px;
}

.final-cta .btn-primary {
  background: #fff;
  color: var(--color-main-dark);
}

.final-cta .btn-primary:hover {
  background: #EAF8FC;
}

/* -- フッター -------------------------------------------------------- */

.site-footer {
  background: #10202f;
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 32px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-jp);
  font-weight: 800;
  font-size: 18px;
  color: #fff;
}

.footer-brand img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.footer-links {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.footer-col h4 {
  font-family: var(--font-jp);
  font-size: 14px;
  color: #fff;
  margin-bottom: 14px;
}

.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  text-decoration: none;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition);
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  padding-top: 24px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

/* -- スキップリンク -------------------------------------------------------- */

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-main);
  color: #fff;
  padding: 12px 20px;
  z-index: 1000;
  border-radius: 0 0 8px 0;
}

.skip-link:focus {
  left: 0;
}

/* -- アニメーション -------------------------------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 220ms ease, transform 220ms ease;
}

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* -- レスポンシブ -------------------------------------------------------- */

@media (max-width: 1024px) {
  .benefits-grid,
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    order: -1;
  }
  .phone-mock {
    width: 220px;
    height: 450px;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }
  section {
    padding: 64px 0;
  }
  .main-nav,
  .header-actions .btn-secondary {
    display: none;
  }
  .nav-toggle {
    display: block;
  }
  .header-actions.is-open {
    display: block;
  }
  .site-header.nav-open .main-nav {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: #fff;
    padding: 24px 20px;
    border-bottom: 1px solid var(--color-border);
    gap: 20px;
  }
  .benefits-grid,
  .features-grid,
  .workflow-grid,
  .platforms-grid,
  .plans-grid,
  .screens-grid {
    grid-template-columns: 1fr;
  }
  .footer-top {
    flex-direction: column;
  }
  .final-cta {
    padding: 56px 24px;
  }
}

body.nav-open {
  overflow: hidden;
}