/* ═══════════════════════════════════════════
   LifeScene — Official Landing Page
   Colors from I_web_decorations:
     Orange  #FF8A3D
     Blue    #4DA3FF
     Green   #60D5A8
   ═══════════════════════════════════════════ */

:root {
  --bg: #faf8f4;
  --bg-section: #f4f1ec;
  --card: rgba(255, 255, 255, 0.72);
  --navy: #0c2540;
  --text: #2a2a2a;
  --muted: rgba(12, 37, 64, 0.68);

  --orange: #ff8a3d;
  --blue: #4da3ff;
  --green: #60d5a8;

  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;

  --container: 1120px;
  --text-width: 720px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", -apple-system,
    BlinkMacSystemFont, "Noto Sans JP", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

/* ── Utility ── */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 10px;
  background: #000;
  color: #fff;
  padding: 10px 14px;
  border-radius: 10px;
  z-index: 999;
}
.skip-link:focus {
  left: 12px;
}

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

/* ── Background decoration ── */
.page-bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(55% 35% at 50% -8%, rgba(255, 138, 61, 0.09), transparent 55%),
    radial-gradient(35% 28% at 88% 2%, rgba(77, 163, 255, 0.1), transparent 50%),
    radial-gradient(40% 30% at 12% 12%, rgba(96, 213, 168, 0.1), transparent 55%);
  pointer-events: none;
  z-index: -1;
}

/* ── Container ── */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 96px 0;
}

/* ═══════════════════════════════════════════
   Header
   ═══════════════════════════════════════════ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(250, 248, 244, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(12, 37, 64, 0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-icon {
  /* 最終素材 lifescene_icon.png は正方形に近い丸アイコン */
  width: 36px;
  height: auto;
  border-radius: 8px;
}

.brand-name {
  font-weight: 800;
  letter-spacing: 0.3px;
  color: var(--navy);
  font-size: 19px;
}

/* ── App Store badge (shared) ── */
.appstore-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: 12px;
  min-height: 44px;
  min-width: 44px;
  padding: 0;
}

.appstore-btn:focus-visible {
  outline: 3px solid rgba(77, 163, 255, 0.4);
  outline-offset: 3px;
}

/* バッジ画像: 余白はCSS側で管理、画像自体の白枠を見せない */
.appstore-badge {
  height: 44px;
  width: auto;
  display: block;
}

/* ═══════════════════════════════════════════
   Hero
   ═══════════════════════════════════════════ */
.hero {
  padding: 48px 0 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-title {
  font-size: 44px;
  margin: 0 0 20px;
  letter-spacing: -0.5px;
  line-height: 1.25;
  color: var(--navy);
  font-weight: 900;
}

.hero-title-last {
  white-space: nowrap;
}

.accent {
  color: var(--orange);
}

.hero-text {
  margin: 0 0 26px;
  color: var(--muted);
  font-size: 17px;
  max-width: var(--text-width);
  line-height: 1.8;
}

.hero-cta {
  margin-top: 8px;
}

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

.hero-phones {
  width: 100%;
  max-width: 440px;
  height: auto;
  object-fit: contain;
}

/* ═══════════════════════════════════════════
   Section headings
   ═══════════════════════════════════════════ */
.section-title {
  margin: 0 0 24px;
  color: var(--navy);
  font-weight: 900;
  font-size: 30px;
  letter-spacing: -0.2px;
  line-height: 1.35;
}

.section-text {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.85;
  max-width: var(--text-width);
}

/* ═══════════════════════════════════════════
   3 Steps
   ═══════════════════════════════════════════ */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.step-card {
  background: rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-lg);
  padding: 22px 20px 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.step-label {
  display: inline-block;
  font-weight: 800;
  font-size: 12px;
  color: #fff;
  padding: 5px 14px;
  border-radius: 999px;
  letter-spacing: 0.5px;
}

.step-label--1 {
  background: var(--orange);
}
.step-label--2 {
  background: #7d5cff;
}
.step-label--3 {
  background: var(--green);
}

.step-heading {
  margin: 14px 0 8px;
  font-size: 20px;
  color: var(--navy);
  font-weight: 900;
}

.step-text {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.step-phone {
  width: 100%;
  max-width: 220px;
  height: auto;
  object-fit: contain;
  margin: auto auto 0;
  border-radius: 0;
  filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.1));
}

/* ═══════════════════════════════════════════
   Easy reason
   ═══════════════════════════════════════════ */
.easy-items {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.easy-item {
  background: rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-lg);
  padding: 22px 18px;
  box-shadow: var(--shadow-sm);
}

/* feature_*.png アイコン（128x128 PNG）*/
.easy-icon-img {
  width: 48px;
  height: 48px;
  margin-bottom: 14px;
  object-fit: contain;
}

.easy-item-title {
  margin: 0 0 8px;
  color: var(--navy);
  font-weight: 800;
  font-size: 18px;
}

.easy-item-text {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

/* ═══════════════════════════════════════════
   AI Detection
   ═══════════════════════════════════════════ */
.ai-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
}

.ai-mock {
  width: 100%;
  max-width: 260px;
  margin: 0 auto;
  line-height: 0;
}

/* 固定heightで切り抜かない。正しい比率の素材なら全体表示 */
.ai-img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
  border-radius: var(--radius-lg);
  filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.1));
}

/* ═══════════════════════════════════════════
   Values
   ═══════════════════════════════════════════ */
.values-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 36px;
  align-items: center;
}

.values-photo-img {
  width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius-xl);
  filter: drop-shadow(0 10px 28px rgba(0, 0, 0, 0.07));
}

/* ═══════════════════════════════════════════
   Pricing
   ═══════════════════════════════════════════ */
.pricing-grid {
  margin: 12px 0 24px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.price-item {
  background: rgba(255, 255, 255, 0.6);
  border-radius: var(--radius-lg);
  padding: 22px 18px;
  box-shadow: var(--shadow-sm);
  text-align: center;
}

/* pricing_*.png アイコン（128x128 PNG）*/
.price-icon-img {
  width: 44px;
  height: 44px;
  margin: 0 auto 10px;
  object-fit: contain;
  display: block;
}

.price-title {
  margin: 0;
  color: var(--navy);
  font-weight: 800;
  font-size: 16px;
  line-height: 1.5;
}

.pricing-notes {
  max-width: var(--text-width);
}

.pricing-note {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

/* ═══════════════════════════════════════════
   Final CTA
   ═══════════════════════════════════════════ */
.final-card {
  position: relative;
  border-radius: var(--radius-xl);
  padding: 72px 32px 100px; /* 下に波装飾分のスペース */
  background: rgba(255, 255, 255, 0.6);
  box-shadow: var(--shadow);
  overflow: hidden;
  text-align: center;
}

/* cta_wave.png をカード下部に配置 */
.final-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  pointer-events: none;
  line-height: 0;
}

.final-wave img {
  width: 100%;
  height: auto;
  display: block;
  opacity: 0.55;
}

.final-title {
  position: relative;
  margin: 0 0 14px;
  color: var(--navy);
  font-weight: 900;
  font-size: 34px;
  letter-spacing: -0.2px;
  line-height: 1.3;
}

.final-text {
  position: relative;
  margin: 0 auto 28px;
  color: var(--muted);
  font-size: 17px;
  max-width: 440px;
  line-height: 1.8;
}

.appstore-btn--final {
  position: relative;
}

/* ═══════════════════════════════════════════
   Footer
   ═══════════════════════════════════════════ */
.site-footer {
  padding: 48px 0 56px;
  border-top: 1px solid rgba(12, 37, 64, 0.08);
  background: rgba(255, 255, 255, 0.3);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-icon {
  width: 34px;
  height: auto;
  border-radius: 8px;
}

.footer-name {
  font-weight: 800;
  color: var(--navy);
  font-size: 16px;
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-link {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
}

.footer-link:hover {
  color: var(--navy);
  text-decoration: underline;
}

.footer-copy {
  width: 100%;
  margin: 8px 0 0;
  color: rgba(12, 37, 64, 0.5);
  font-size: 14px;
}

/* ═══════════════════════════════════════════
   Responsive — Mobile (≤ 767px)
   ═══════════════════════════════════════════ */
@media (max-width: 767px) {
  .sp-only {
    display: inline;
  }
  .pc-only {
    display: none;
  }

  body {
    overflow-x: hidden;
  }

  .container {
    padding: 0 20px;
  }

  .section {
    padding: 72px 0;
  }

  /* ── Header ── */
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 54px;
    height: 54px;
    padding: 0;
    gap: 12px;
  }

  .brand {
    gap: 8px;
    align-items: center;
    height: 30px;
  }

  .brand-icon {
    width: 26px;
    height: auto;
  }

  .brand-name {
    font-size: 15px;
    line-height: 1;
  }

  .site-header .appstore-btn {
    min-height: 0;
    align-items: center;
  }

  .site-header .appstore-badge {
    height: 28px;
    width: auto;
  }

  .hero .appstore-badge,
  .final-cta .appstore-badge {
    height: 38px;
    width: auto;
  }

  /* ── Hero ── */
  .hero {
    padding: 22px 0 0;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .hero-title {
    font-size: 30px;
    line-height: 1.3;
    letter-spacing: -0.3px;
  }

  .hero-text {
    font-size: 17px;
    line-height: 1.82;
    margin: 0;
  }

  .hero-cta {
    margin-top: 24px;
  }

  .hero-phones {
    width: 100%;
    max-width: 100%;
    height: auto;
    object-fit: contain;
    margin: 0 auto;
  }

  /* ── Section titles ── */
  .section-title {
    font-size: 28px;
    line-height: 1.35;
  }

  .steps-title-last {
    white-space: nowrap;
  }

  /* セクション間リズム（steps ↔ AI。JAは中間の easy を省略） */
  .steps {
    padding-bottom: 48px;
  }

  .easy {
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .ai {
    padding-top: 48px;
    padding-bottom: 36px;
  }

  .values {
    padding-top: 40px;
  }

  .pricing {
    padding-bottom: 28px;
  }

  .final-cta {
    padding-top: 36px;
  }

  /* ── Steps ── */
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .step-card {
    align-items: center;
    text-align: center;
    overflow: visible;
    padding: 30px 22px 28px;
  }

  .step-heading {
    font-size: 19px;
    margin: 14px 0 10px;
  }

  .step-text {
    font-size: 16px;
    line-height: 1.75;
    width: 88%;
    margin: 0 auto 22px;
  }

  .step-phone {
    width: 80%;
    max-width: 220px;
    height: auto;
    object-fit: contain;
    border-radius: 0;
    overflow: visible;
  }

  /* ── Easy ── */
  .easy-items {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .easy-item {
    padding: 22px;
  }

  .easy-icon-img {
    width: 34px;
    height: 34px;
  }

  .easy-item-title {
    font-size: 18px;
  }

  .easy-item-text {
    font-size: 16px;
    line-height: 1.75;
  }

  /* ── AI & Values ── */
  .ai-grid,
  .values-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .section-text {
    font-size: 17px;
    line-height: 1.85;
  }

  .ai-mock {
    max-width: 100%;
    width: 100%;
    overflow: visible;
  }

  .ai-img {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: 18px;
  }

  .values-photo {
    overflow: visible;
  }

  .values-photo-img {
    width: 100%;
    max-width: 100%;
    height: auto;
    object-fit: contain;
  }

  /* ── Pricing ── */
  .pricing-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .price-item {
    padding: 20px 10px;
  }

  .price-icon-img {
    width: 30px;
    height: 30px;
    margin-bottom: 8px;
  }

  .price-title {
    font-size: 15px;
    line-height: 1.35;
    letter-spacing: -0.02em;
    overflow-wrap: normal;
    word-break: normal;
    line-break: strict;
  }

  .pricing-notes {
    margin-top: 8px;
  }

  .pricing-note {
    font-size: 16px;
    line-height: 1.8;
    margin: 10px 0 0;
  }

  /* ── Final CTA ── */
  .final-card {
    padding: 48px 24px 72px;
  }

  .final-title {
    font-size: 28px;
    line-height: 1.35;
  }

  .final-text {
    font-size: 17px;
    line-height: 1.8;
    margin: 0 auto 28px;
  }

  /* ── Footer ── */
  .site-footer {
    padding: 52px 0 60px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
  }

  .footer-brand {
    margin-bottom: 26px;
  }

  .footer-links {
    flex-direction: column;
    gap: 20px;
  }

  .footer-link {
    font-size: 16px;
  }

  .footer-copy {
    margin: 36px 0 0;
    font-size: 14px;
  }
}

/* ═══════════════════════════════════════════
   Responsive — Tablet (768–1023px)
   ═══════════════════════════════════════════ */
@media (min-width: 768px) {
  .ai-mock {
    max-width: 280px;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .hero-title {
    font-size: 38px;
  }

  .easy-items {
    grid-template-columns: repeat(2, 1fr);
  }

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

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