/* ─── Reset & Base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --orange-900: #A04B08;
  --orange-800: #C85E10;
  --orange-700: #E87820;
  --orange-100: #FFF3E0;
  --orange-50:  #FFF8F3;
  --blue:      #1565C0;
  --amber:     #F59E0B;
  --gray-900:  #111827;
  --gray-700:  #374151;
  --gray-500:  #6B7280;
  --gray-300:  #D1D5DB;
  --gray-100:  #F3F4F6;
  --white:     #FFFFFF;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 16px rgba(0,0,0,.10);
  --shadow-lg: 0 8px 32px rgba(0,0,0,.12);
  --radius:    14px;
  --font: 'Hiragino Sans', 'Noto Sans JP', 'Yu Gothic', sans-serif;
}

html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--gray-900); background: var(--white); line-height: 1.6; }
img  { max-width: 100%; display: block; }
a    { color: inherit; text-decoration: none; }

/* ─── Utilities ─────────────────────────────────────────────── */
.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.section   { padding: 80px 0; }
.section--gray  { background: var(--gray-100); }
.section--orange { background: var(--orange-50); }
.badge { display: inline-block; background: var(--amber); color: #7C4500; font-size: 12px; font-weight: 800; padding: 3px 10px; border-radius: 20px; letter-spacing: .3px; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 14px 28px; border-radius: 10px; font-size: 15px; font-weight: 700; cursor: pointer; border: none; transition: all .2s; }
.btn--primary { background: var(--orange-800); color: var(--white); }
.btn--primary:hover { background: var(--orange-900); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn--outline { background: transparent; color: var(--orange-800); border: 2px solid var(--orange-800); }
.btn--outline:hover { background: var(--orange-50); }
.btn--large { padding: 18px 36px; font-size: 17px; border-radius: 12px; }
.section-label { font-size: 13px; font-weight: 700; color: var(--orange-800); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 8px; }
.section-title { font-size: clamp(24px, 4vw, 36px); font-weight: 800; line-height: 1.3; margin-bottom: 16px; }
.section-sub   { font-size: 16px; color: var(--gray-500); line-height: 1.7; }

/* ─── Header ─────────────────────────────────────────────────── */
header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-300);
  padding: 12px 0;
}
.header-inner { display: flex; align-items: center; justify-content: space-between; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-icon { width: 36px; height: 36px; border-radius: 9px; overflow: hidden; flex-shrink: 0; }
.logo-icon img { width: 100%; height: 100%; object-fit: cover; }
.logo-name { font-size: 18px; font-weight: 800; color: var(--gray-900); }
.header-cta { display: flex; align-items: center; gap: 12px; }
.header-cta .btn { padding: 10px 22px; font-size: 14px; }

/* ─── Hero ───────────────────────────────────────────────────── */
.hero {
  background: linear-gradient(145deg, var(--orange-900) 0%, var(--orange-700) 100%);
  color: var(--white);
  padding: 88px 0 72px;
  overflow: hidden;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; position: relative; }
.hero-eyebrow { font-size: 13px; font-weight: 700; letter-spacing: 1px; opacity: .8; margin-bottom: 16px; }
.hero-title { font-size: clamp(28px, 5vw, 48px); font-weight: 900; line-height: 1.25; margin-bottom: 20px; }
.hero-title em { font-style: normal; color: #FFD180; }
.hero-sub { font-size: 17px; opacity: .88; line-height: 1.75; margin-bottom: 36px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-actions .btn--store { width: 260px; justify-content: center; }
.hero-actions .btn--store { background: var(--white); color: var(--orange-900); font-weight: 800; }
.hero-actions .btn--store:hover { background: var(--orange-100); }
.hero-stats { display: flex; gap: 32px; margin-top: 40px; }
.hero-stat { }
.hero-stat strong { display: block; font-size: 28px; font-weight: 900; color: #FFD180; }
.hero-stat span { font-size: 13px; opacity: .75; }
.hero-mockup { display: flex; justify-content: center; align-items: center; }
.hero-phone { width: 240px; height: 480px; background: rgba(255,255,255,.12); border-radius: 36px; border: 2px solid rgba(255,255,255,.3); display: flex; align-items: center; justify-content: center; box-shadow: 0 24px 64px rgba(0,0,0,.3); backdrop-filter: blur(8px); }
.hero-phone-inner { text-align: center; padding: 24px; }
.hero-phone-icon { width: 100px; height: 100px; border-radius: 22px; margin: 0 auto 16px; overflow: hidden; box-shadow: 0 8px 24px rgba(0,0,0,.3); }
.hero-phone-icon img { width: 100%; height: 100%; object-fit: cover; }
.hero-phone-text { font-size: 14px; color: rgba(255,255,255,.7); }

/* ─── Features ──────────────────────────────────────────────── */
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 56px; }
.feature-card { background: var(--white); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow-sm); border: 1px solid var(--gray-300); transition: all .2s; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--orange-700); }
.feature-icon { width: 52px; height: 52px; background: var(--orange-100); border-radius: 12px; display: flex; align-items: center; justify-content: center; margin-bottom: 16px; color: var(--orange-800); }
.feature-icon svg { width: 26px; height: 26px; }
.feature-title { font-size: 17px; font-weight: 800; margin-bottom: 8px; }
.feature-desc { font-size: 14px; color: var(--gray-500); line-height: 1.7; }

/* ─── How it works ──────────────────────────────────────────── */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; margin-top: 56px; position: relative; }
.steps::before { content: ''; position: absolute; top: 28px; left: calc(16.67% + 16px); right: calc(16.67% + 16px); height: 2px; background: linear-gradient(to right, var(--orange-800), var(--orange-700)); }
.step { text-align: center; padding: 0 16px; }
.step-num { width: 56px; height: 56px; background: var(--orange-800); color: var(--white); font-size: 22px; font-weight: 900; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; box-shadow: var(--shadow-md); position: relative; z-index: 1; }
.step-title { font-size: 17px; font-weight: 800; margin-bottom: 8px; }
.step-desc { font-size: 14px; color: var(--gray-500); line-height: 1.7; }

/* ─── Pricing ────────────────────────────────────────────────── */
.pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 56px; align-items: stretch; }
.plan-card { background: var(--white); border-radius: var(--radius); border: 1.5px solid var(--gray-300); overflow: hidden; transition: all .2s; display: flex; flex-direction: column; }
.plan-card:hover { box-shadow: var(--shadow-md); }
.plan-card--highlight { border-color: var(--orange-800); border-width: 2px; box-shadow: 0 8px 32px rgba(200,94,16,.22); transform: scale(1.03); }
.plan-header { padding: 20px 20px 16px; }
.plan-header--gray   { background: linear-gradient(135deg, #757575, #9E9E9E); }
.plan-header--blue   { background: linear-gradient(135deg, #1565C0, #42A5F5); }
.plan-header--orange { background: linear-gradient(135deg, #A04B08, #E87820); }
.plan-header--purple { background: linear-gradient(135deg, #4A148C, #7B1FA2); }
.plan-name-row { display: flex; align-items: center; gap: 8px; margin-bottom: 4px; }
.plan-name { font-size: 18px; font-weight: 800; color: var(--white); }
.plan-badge { background: var(--amber); color: #7C4500; font-size: 11px; font-weight: 800; padding: 2px 8px; border-radius: 10px; }
.plan-tagline { font-size: 12px; color: rgba(255,255,255,.8); margin-bottom: 10px; }
.plan-price { font-size: 26px; font-weight: 900; color: var(--white); }
.plan-price span { font-size: 13px; font-weight: 500; opacity: .8; }
.plan-body { padding: 16px 20px 20px; flex: 1; display: flex; flex-direction: column; }
.plan-body .plan-cta { margin-top: auto; }
.plan-feature { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 10px; font-size: 13px; color: var(--gray-700); }
.plan-feature .check { color: var(--orange-800); font-size: 15px; flex-shrink: 0; margin-top: 1px; }
.plan-feature .cross { color: var(--gray-300); font-size: 15px; flex-shrink: 0; margin-top: 1px; }
.plan-feature strong { font-weight: 700; }
.plan-cta { display: block; margin-top: 16px; padding: 12px; text-align: center; border-radius: 8px; font-size: 14px; font-weight: 700; background: var(--orange-800); color: var(--white); transition: background .2s; }
.plan-cta:hover { background: var(--orange-900); }
.plan-cta--gray { background: var(--gray-100); color: var(--gray-500); cursor: default; }
.plan-cta--gray:hover { background: var(--gray-100); }

/* ─── CTA Section ────────────────────────────────────────────── */
.cta-section { background: linear-gradient(145deg, var(--orange-900), var(--orange-700)); color: var(--white); text-align: center; padding: 80px 24px; }
.cta-section .section-title { color: var(--white); }
.cta-section .section-sub { color: rgba(255,255,255,.8); max-width: 520px; margin: 0 auto 36px; }
.cta-buttons { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; }
.btn--white { background: var(--white); color: var(--orange-900); font-weight: 800; }
.btn--white:hover { background: var(--orange-100); }
.cta-note { font-size: 13px; opacity: .65; margin-top: 20px; }

/* ─── Footer ─────────────────────────────────────────────────── */
footer { background: var(--gray-900); color: rgba(255,255,255,.6); padding: 48px 0 28px; }
.footer-inner { display: flex; justify-content: space-between; align-items: flex-start; gap: 32px; margin-bottom: 36px; }
.footer-brand .logo-name { color: var(--white); font-size: 16px; }
.footer-brand p { font-size: 13px; margin-top: 8px; line-height: 1.6; max-width: 240px; }
.footer-links h4 { font-size: 13px; font-weight: 700; color: var(--white); margin-bottom: 12px; }
.footer-links ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-links li a { font-size: 13px; transition: color .15s; }
.footer-links li a:hover { color: var(--white); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 20px; font-size: 12px; text-align: center; }

/* ─── Responsive ─────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-mockup { display: none; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .pricing-grid { grid-template-columns: 1fr 1fr; }
  .plan-card--highlight { transform: none; }
  .footer-inner { flex-direction: column; }
}
@media (max-width: 600px) {
  .section { padding: 56px 0; }
  .features-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .steps::before { display: none; }
  .pricing-grid { grid-template-columns: 1fr; }
  .header-cta .btn--outline { display: none; }
}