/* ====================================
   Blocky — WEB制作サービス
   Mobile First Design
==================================== */

/* ---------- CSS Variables ---------- */
:root {
  /* ブランドカラー */
  --color-green: #06C755;
  --color-green-dark: #05a847;
  --color-green-light: #eafaf1;
  --color-green-mid: #d0f0e0;

  /* ベースカラー */
  --color-primary: #1e2235;
  --color-text: #2d2d3a;
  --color-text-light: #5a5a72;
  --color-text-muted: #8888a0;
  --color-bg: #f5f6f9;
  --color-bg-warm: #fafaf7;
  --color-white: #ffffff;
  --color-border: #dde0ec;

  /* アクセント */
  --color-accent: #3a5fe8;
  --color-accent-light: #eaedfd;
  --color-popular: #e85c20;

  /* タイポグラフィ */
  --font-ja: 'Noto Sans JP', sans-serif;
  --font-en: 'Inter', sans-serif;

  /* スペーシング */
  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;

  /* シャドウ */
  --shadow-sm: 0 2px 12px rgba(0,0,0,.06);
  --shadow-md: 0 8px 36px rgba(0,0,0,.10);
  --shadow-lg: 0 20px 56px rgba(0,0,0,.14);

  --transition: .25s cubic-bezier(.4,0,.2,1);
  --header-h: 64px;
}

/* ---------- Reset / Base (Mobile First) ---------- */
*, *::before, *::after { 
  box-sizing: border-box; 
  margin: 0; 
  padding: 0; 
}

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

body {
  font-family: var(--font-ja);
  color: var(--color-text);
  background: var(--color-bg);
  /* モバイル：読みやすいサイズ */
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ---------- Container (Mobile First) ---------- */
.container {
  width: 100%;
  margin: 0 auto;
  padding: 0 16px;
}

/* ====================================
   BUTTONS (Mobile First)
==================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: 50px;
  font-family: var(--font-ja);
  font-weight: 700;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  min-height: 48px;
  line-height: 1.2;
  -webkit-tap-highlight-color: transparent;
}

.btn-sm  { font-size: .9rem; padding: 10px 18px; }
.btn-md  { font-size: .95rem; padding: 12px 22px; }
.btn-lg  { font-size: 1rem; padding: 14px 26px; }
.btn-xl  { font-size: 1.05rem; padding: 16px 28px; }
.btn-full { width: 100%; }

.btn-line {
  background: var(--color-green);
  color: var(--color-white);
}
.btn-line:hover {
  background: var(--color-green-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.btn-line .btn-arrow {
  font-size: .85em;
  transition: transform var(--transition);
}
.btn-line:hover .btn-arrow {
  transform: translateX(3px);
}

/* ====================================
   HEADER (Mobile First)
==================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-h);
  transition: box-shadow var(--transition);
}
.site-header.has-shadow {
  box-shadow: var(--shadow-sm);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.logo {
  font-family: var(--font-en);
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--color-primary);
  letter-spacing: -.03em;
}

/* モバイル：ナビゲーション非表示 */
.header-nav {
  display: none;
}

.header-line-btn {
  font-size: .85rem;
  padding: 9px 16px;
  min-height: 40px;
}

/* ====================================
   HERO (Mobile First)
==================================== */
.hero {
  position: relative;
  background: linear-gradient(150deg, #1a2f1e, #1e3a28, #152b1e);
  color: var(--color-white);
  padding-top: 60px;
  min-height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 40%, rgba(6,199,85,.08), transparent 60%),
              radial-gradient(circle at 70% 70%, rgba(94,224,154,.06), transparent 50%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  top: -20%;
  right: -15%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(6,199,85,.12), transparent 60%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 40px 0 60px;
}

.hero-title {
  font-size: clamp(1.6rem, 6vw, 2rem);
  font-weight: 900;
  line-height: 1.5;
  margin-bottom: 24px;
  letter-spacing: -.02em;
  word-break: keep-all;
  overflow-wrap: break-word;
}
.hero-title .highlight {
  color: #5de09a;
  white-space: nowrap;
}

.hero-lead {
  font-size: clamp(.95rem, 4vw, 1.05rem);
  color: rgba(255,255,255,.8);
  margin-bottom: 40px;
  line-height: 1.9;
}

.hero-cta {
  margin-bottom: 32px;
}
.hero-cta .btn {
  width: 100%;
  max-width: 100%;
  justify-content: center;
}

.hero-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 80px;
  overflow: hidden;
  line-height: 0;
}
.hero-wave svg {
  position: relative;
  display: block;
  width: calc(100% + 2px);
  height: 100%;
}

/* ====================================
   SECTIONS (Mobile First)
==================================== */
.section {
  padding: 48px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 36px;
}

.section-label {
  font-family: var(--font-en);
  font-size: .75rem;
  font-weight: 700;
  color: var(--color-green);
  letter-spacing: .12em;
  margin-bottom: 12px;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(1.5rem, 5vw, 1.8rem);
  font-weight: 900;
  color: var(--color-primary);
  margin-bottom: 12px;
  line-height: 1.4;
  letter-spacing: -.02em;
}

.section-divider {
  width: 48px;
  height: 4px;
  background: var(--color-green);
  margin: 0 auto 12px;
  border-radius: 2px;
}

.section-desc {
  font-size: .95rem;
  color: var(--color-text-light);
  line-height: 1.75;
}

/* ====================================
   PLANS (Mobile First)
==================================== */
.plans-section { 
  background: var(--color-bg-warm); 
}

.plans-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.plan-card {
  background: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px 18px;
  transition: box-shadow var(--transition), transform var(--transition);
}

.plan-card--popular {
  border-color: var(--color-green);
  box-shadow: 0 0 0 3px rgba(6,199,85,.12), var(--shadow-sm);
}

.plan-badge-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.plan-num {
  font-family: var(--font-en);
  font-size: .75rem;
  font-weight: 700;
  color: var(--color-accent);
  background: var(--color-accent-light);
  padding: 5px 12px;
  border-radius: 20px;
  letter-spacing: .05em;
}

.popular-badge {
  font-size: .8rem;
  font-weight: 700;
  color: var(--color-white);
  background: var(--color-popular);
  padding: 5px 13px;
  border-radius: 20px;
}

.plan-name {
  font-size: 1.35rem;
  font-weight: 900;
  color: var(--color-primary);
  margin-bottom: 8px;
  letter-spacing: -.01em;
}

.plan-sub {
  font-size: .88rem;
  color: var(--color-text-light);
  margin-bottom: 20px;
  line-height: 1.6;
}

.plan-price-block {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border: 1px solid var(--color-border);
}

.price-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.price-label {
  font-size: .85rem;
  color: var(--color-text-light);
  font-weight: 500;
}

.price-value {
  font-family: var(--font-en);
  font-size: .95rem;
  font-weight: 600;
  color: var(--color-primary);
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.price-value strong {
  font-size: 1.6rem;
  font-weight: 800;
}

.price-value small {
  font-size: .8rem;
  color: var(--color-text-muted);
}

/* 折りたたみボタン */
.plan-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--color-accent-light);
  border: 1.5px solid rgba(58,95,232,.22);
  border-radius: var(--radius-sm);
  padding: 13px 18px;
  color: var(--color-accent);
  font-size: .9rem;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
  margin-bottom: 0;
  min-height: 48px;
  font-family: var(--font-ja);
}
.plan-toggle:hover {
  background: rgba(58,95,232,.12);
  border-color: rgba(58,95,232,.3);
}
.plan-toggle .toggle-icon {
  font-size: .8rem;
  transition: transform var(--transition);
}
.plan-toggle.is-open .toggle-icon {
  transform: rotate(180deg);
}
.plan-toggle.is-open .toggle-text::before {
  content: '詳細を閉じる';
}
.plan-toggle.is-open .toggle-text {
  font-size: 0;
}
.plan-toggle.is-open .toggle-text::before {
  font-size: .9rem;
}

/* 折りたたみコンテンツ */
.plan-details {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s cubic-bezier(.4,0,.2,1), opacity .3s ease;
  opacity: 0;
}
.plan-details.is-open {
  max-height: 2000px;
  opacity: 1;
  margin-top: 20px;
}

.plan-desc {
  font-size: .9rem;
  color: var(--color-text-light);
  margin-bottom: 18px;
  line-height: 1.7;
}

.plan-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.plan-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: .9rem;
  line-height: 1.65;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.plan-features i {
  color: var(--color-green);
  font-size: .95rem;
  margin-top: 2px;
  flex-shrink: 0;
}

.plan-total {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: .85rem;
  color: #2a6648;
  background: var(--color-green-light);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 16px;
  white-space: nowrap;
  overflow-x: auto;
}

.plan-total i {
  color: var(--color-green);
  font-size: .9rem;
}

/* ====================================
   MAINTENANCE (Mobile First)
==================================== */
.maintenance-section { 
  background: var(--color-white); 
}

.maintenance-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-bottom: 32px;
}

.maintenance-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-green-mid);
  border-radius: var(--radius-md);
  padding: 22px 18px;
  text-align: center;
  transition: box-shadow var(--transition), transform var(--transition), border-top-color var(--transition);
}
.maintenance-item:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
  border-top-color: var(--color-green);
}
.maintenance-item > i {
  font-size: 2rem;
  color: var(--color-green);
  margin-bottom: 14px;
  display: block;
}
.maintenance-item h4 {
  font-size: .98rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
  line-height: 1.45;
}
.maintenance-item p {
  font-size: .85rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.maintenance-note {
  background: #fffbf5;
  border: 1px solid #f5ddb0;
  border-left: 5px solid #e8a030;
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  font-size: .9rem;
  color: #5a3c0a;
  line-height: 1.9;
}
.maintenance-note i { 
  color: #e8a030; 
  margin-right: 6px; 
}
.maintenance-note strong { 
  color: #7a3000; 
}

/* ====================================
   PAYMENT (Mobile First)
==================================== */
.payment-section { 
  background: var(--color-bg-warm); 
}

.payment-steps {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.payment-step {
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: box-shadow var(--transition);
}
.payment-step:hover {
  box-shadow: var(--shadow-sm);
}

.step-num {
  font-family: var(--font-en);
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--color-green);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-green-light);
  border-radius: 50%;
  flex-shrink: 0;
}

.step-body {
  flex: 1;
}

.step-body h4 {
  font-size: .95rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.step-tag {
  font-size: .72rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-accent-light);
  padding: 3px 10px;
  border-radius: 12px;
}

.step-amount {
  font-size: .88rem;
  color: var(--color-text);
  margin-bottom: 6px;
}

.step-amount strong {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-primary);
}

.step-desc {
  font-size: .85rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.payment-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-green);
  font-size: 1.2rem;
  padding: 8px 0;
}

.payment-info {
  max-width: 100%;
  margin: 0 auto;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--color-accent-light);
  border: 1px solid rgba(58,95,232,.2);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-size: .88rem;
  color: #1a2d88;
  line-height: 1.8;
  word-break: keep-all;
  overflow-wrap: break-word;
}
.payment-info i {
  color: var(--color-accent);
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.payment-info strong {
  white-space: nowrap;
}

/* ====================================
   FLOW (Mobile First)
==================================== */
.flow-section { 
  background: var(--color-white); 
}

.flow-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.flow-item {
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px 16px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.flow-item:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.flow-icon {
  width: 44px;
  height: 44px;
  background: var(--color-green-light);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.flow-icon i {
  font-size: 1.1rem;
  color: var(--color-green);
}

.flow-body {
  flex: 1;
}

.flow-step {
  font-family: var(--font-en);
  font-size: .7rem;
  font-weight: 700;
  color: var(--color-green);
  letter-spacing: .08em;
  margin-bottom: 5px;
  display: block;
}

.flow-body h4 {
  font-size: .95rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
  line-height: 1.4;
}

.flow-body p {
  font-size: .85rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

.flow-connector {
  width: 2px;
  height: 20px;
  background: linear-gradient(to bottom, var(--color-green-mid), transparent);
  margin-left: calc(16px + 22px);
}

/* ====================================
   CTA SECTION (Mobile First)
==================================== */
.cta-section {
  background: linear-gradient(135deg, #1a2f1e, #1e3a28);
  color: var(--color-white);
}

.cta-box {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-lg);
  padding: 36px 20px;
  text-align: center;
}

.cta-eyebrow {
  font-size: .85rem;
  font-weight: 600;
  color: #6ee9a0;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.cta-title {
  font-size: 1.2rem;
  font-weight: 900;
  line-height: 1.5;
  margin-bottom: 16px;
  letter-spacing: -.01em;
}

.cta-desc {
  font-size: .9rem;
  color: rgba(255,255,255,.75);
  line-height: 1.85;
  margin-bottom: 28px;
}

.cta-sub-note {
  font-size: .8rem;
  color: rgba(255,255,255,.58);
  margin-top: 14px;
}

/* ====================================
   FOOTER (Mobile First)
==================================== */
.site-footer {
  background: #1e2235;
  color: rgba(255,255,255,.7);
  padding: 40px 0 32px;
}

.footer-inner {
  text-align: center;
}

.footer-logo {
  font-family: var(--font-en);
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--color-white);
  margin-bottom: 8px;
  display: inline-block;
  letter-spacing: -.03em;
}

.footer-tagline {
  font-size: .9rem;
  color: rgba(255,255,255,.5);
  margin-bottom: 24px;
}

.footer-notes {
  font-size: .8rem;
  color: rgba(255,255,255,.5);
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-copy {
  font-size: .75rem;
  color: rgba(255,255,255,.4);
  margin-top: 20px;
}

/* ====================================
   FLOATING LINE BUTTON (Mobile First)
==================================== */
.floating-line-btn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  width: 60px;
  height: 60px;
  background: var(--color-green);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  box-shadow: 0 4px 20px rgba(6,199,85,.4);
  z-index: 999;
  transition: opacity 0.3s, transform 0.25s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.25s;
  opacity: 0;
  pointer-events: none;
}
.floating-line-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 28px rgba(6,199,85,.5);
}
.floating-line-btn i {
  font-size: 1.6rem;
}
.floating-line-btn .floating-label {
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .02em;
}

/* ====================================
   ANIMATIONS
==================================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s ease-out, transform .6s ease-out;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ====================================
   UTILITY
==================================== */
.sp-only { display: block; }
.pc-only { display: none; }

/* ====================================
   TABLET (≥600px)
==================================== */
@media (min-width: 600px) {
  body {
    font-size: 17px;
  }

  .container {
    padding: 0 24px;
  }

  .section {
    padding: 56px 0;
  }

  .hero {
    padding-top: 80px;
  }

  .hero-inner {
    padding: 50px 0 70px;
  }

  .hero-cta {
    padding: 0 20px;
  }

  .plans-grid {
    gap: 24px;
  }

  .plan-card {
    padding: 28px 22px;
  }

  .maintenance-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }
}

/* ====================================
   DESKTOP (≥960px)
==================================== */
@media (min-width: 960px) {
  :root {
    --header-h: 72px;
  }

  .container {
    padding: 0 32px;
  }

  .section {
    padding: 64px 0;
  }

  /* Header: ナビゲーション表示 */
  .header-nav {
    display: flex;
    align-items: center;
    gap: 32px;
  }

  .nav-link {
    font-size: .95rem;
    font-weight: 600;
    color: var(--color-text);
    padding: 8px 4px;
    transition: color var(--transition);
    position: relative;
  }
  .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-green);
    transition: width var(--transition);
  }
  .nav-link:hover {
    color: var(--color-green);
  }
  .nav-link:hover::after {
    width: 100%;
  }

  .hero {
    min-height: 90vh;
    padding-top: 120px;
  }

  .hero-inner {
    padding: 60px 0 100px;
  }

  .hero-cta {
    padding: 0 120px;
  }

  /* Plans: 2カラム */
  .plans-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
    max-width: 960px;
    margin: 0 auto;
  }

  .plan-card {
    padding: 32px 28px;
  }

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

  /* Maintenance: 3カラム */
  .maintenance-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
  }

  .maintenance-item {
    padding: 30px 22px;
  }

  .payment-info {
    max-width: 640px;
  }

  .cta-box {
    padding: 48px 40px;
    max-width: 800px;
    margin: 0 auto;
  }

  .sp-only { display: none; }
  .pc-only { display: block; }
}

/* ====================================
   LARGE DESKTOP (≥1200px)
==================================== */
@media (min-width: 1200px) {
  .container {
    max-width: 1080px;
    padding: 0 40px;
  }

  .section {
    padding: 80px 0;
  }

  .plans-grid {
    max-width: 1000px;
  }
}