/* ===========================
   Body Progress Studio - LP
   =========================== */

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

:root {
  --primary: #6C63FF;
  --primary-dark: #5A52D5;
  --primary-light: #8B85FF;
  --primary-bg: #F0EFFF;
  --text: #1A1A2E;
  --text-secondary: #64648C;
  --text-light: #9494B8;
  --bg: #FFFFFF;
  --bg-subtle: #F8F8FC;
  --bg-dark: #0F0F23;
  --border: #E8E8F0;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Noto Sans JP', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

/* ===========================
   Buttons
   =========================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.btn-sm { padding: 8px 20px; font-size: 14px; border-radius: var(--radius-sm); }
.btn-lg { padding: 16px 36px; font-size: 16px; border-radius: var(--radius-md); }
.btn-primary {
  background: var(--primary); color: #fff;
  box-shadow: 0 4px 12px rgba(108, 99, 255, 0.3);
}
.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 6px 20px rgba(108, 99, 255, 0.4);
  transform: translateY(-1px);
}
.btn-outline {
  background: transparent; color: var(--primary);
  border: 1.5px solid var(--primary);
}
.btn-outline:hover { background: var(--primary-bg); }
.btn-ghost {
  background: transparent; color: var(--text-secondary);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover { border-color: var(--primary); color: var(--primary); }
.btn-white {
  background: #fff; color: var(--primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}
.btn-white:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15); }
.btn-block { width: 100%; }

/* ===========================
   Header
   =========================== */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(232, 232, 240, 0.5);
  transition: all var(--transition);
}
.header.scrolled { box-shadow: var(--shadow-sm); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between; height: 72px;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; }
.logo-icon {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; background: var(--primary); color: #fff;
  border-radius: var(--radius-sm); font-weight: 800; font-size: 16px;
}
.logo-text { color: var(--text); }
.nav { display: flex; align-items: center; gap: 32px; }
.nav-link {
  font-size: 14px; font-weight: 500; color: var(--text-secondary);
  transition: color var(--transition); position: relative;
}
.nav-link::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 2px; background: var(--primary); transition: width var(--transition);
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { width: 100%; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 8px;
}
.hamburger span {
  display: block; width: 24px; height: 2px; background: var(--text);
  border-radius: 2px; transition: all var(--transition);
}

/* ===========================
   Hero
   =========================== */
.hero {
  position: relative; padding: 140px 0 80px; overflow: hidden;
}
.hero-bg { position: absolute; inset: 0; z-index: 0; }
.hero-gradient {
  position: absolute; top: -200px; right: -200px; width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(108, 99, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}
.hero-pattern {
  position: absolute; inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(108, 99, 255, 0.05) 1px, transparent 0);
  background-size: 40px 40px;
}
.hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: center;
}
.hero-badge {
  display: inline-block; padding: 6px 16px; background: var(--primary-bg);
  color: var(--primary); font-size: 13px; font-weight: 600;
  border-radius: 100px; margin-bottom: 24px;
}
.hero-title {
  font-size: clamp(32px, 3.5vw, 52px); font-weight: 800;
  line-height: 1.3; letter-spacing: -0.02em; margin-bottom: 20px;
}
.text-gradient {
  background: linear-gradient(135deg, var(--primary) 0%, #A78BFA 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.hero-description {
  font-size: 16px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 32px;
}
.hero-description strong { color: var(--primary); font-weight: 700; }
.hero-cta { display: flex; gap: 16px; margin-bottom: 40px; }
.hero-stats { display: flex; align-items: center; gap: 32px; }
.hero-stat-number {
  display: block; font-size: 28px; font-weight: 800;
  color: var(--primary); font-family: 'Inter', sans-serif;
}
.hero-stat-label { display: block; font-size: 13px; color: var(--text-light); font-weight: 500; }
.hero-stat-divider { width: 1px; height: 40px; background: var(--border); }

/* Hero Screenshot */
.hero-screenshot {
  border-radius: var(--radius-xl); overflow: hidden;
  box-shadow: var(--shadow-xl); border: 1px solid var(--border);
  transition: transform var(--transition);
}
.hero-screenshot:hover { transform: scale(1.02); }
.hero-screenshot img { width: 100%; height: auto; display: block; }

/* ===========================
   Section Commons
   =========================== */
.section-header { text-align: center; margin-bottom: 64px; }
.section-tag {
  display: inline-block; padding: 6px 16px; background: var(--primary-bg);
  color: var(--primary); font-size: 13px; font-weight: 600;
  border-radius: 100px; margin-bottom: 16px;
}
.section-title {
  font-size: clamp(28px, 3vw, 40px); font-weight: 800;
  line-height: 1.4; letter-spacing: -0.01em; margin-bottom: 16px;
}
.section-description {
  font-size: 16px; color: var(--text-secondary); max-width: 560px; margin: 0 auto;
}

/* ===========================
   Pain Points
   =========================== */
.pain-points { padding: 100px 0; background: var(--bg-subtle); }
.pain-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.pain-card {
  background: #fff; padding: 32px 24px; border-radius: var(--radius-lg);
  border: 1px solid var(--border); transition: all var(--transition);
}
.pain-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); }
.pain-icon {
  width: 56px; height: 56px; display: flex; align-items: center; justify-content: center;
  background: #FFF0F0; color: #FF6B6B; border-radius: var(--radius-md); margin-bottom: 20px;
}
.pain-card h3 { font-size: 16px; font-weight: 700; line-height: 1.5; margin-bottom: 12px; }
.pain-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* ===========================
   Features with Screenshots
   =========================== */
.features { padding: 100px 0; }
.feature-block {
  display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px;
  align-items: center; margin-bottom: 100px;
}
.feature-block:last-child { margin-bottom: 0; }
.feature-block.reverse { direction: rtl; }
.feature-block.reverse > * { direction: ltr; }
.feature-number {
  font-size: 64px; font-weight: 800; font-family: 'Inter', sans-serif;
  color: var(--primary-bg); line-height: 1; margin-bottom: 8px;
}
.feature-title { font-size: 28px; font-weight: 800; margin-bottom: 16px; }
.feature-description {
  font-size: 15px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 24px;
}
.feature-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.feature-list li { display: flex; align-items: center; gap: 12px; font-size: 14px; font-weight: 500; }
.feature-list li svg { flex-shrink: 0; }

/* Feature Screenshot */
.feature-screenshot {
  border-radius: var(--radius-xl); overflow: hidden;
  box-shadow: var(--shadow-lg); border: 1px solid var(--border);
  transition: all var(--transition);
}
.feature-screenshot:hover { box-shadow: var(--shadow-xl); transform: translateY(-4px); }
.feature-screenshot img { width: 100%; height: auto; display: block; }

/* ===========================
   Screenshots Gallery
   =========================== */
.screenshots-section { padding: 100px 0; background: var(--bg-subtle); }
.screenshots-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px;
}
.screenshot-card {
  background: #fff; border-radius: var(--radius-xl); overflow: hidden;
  border: 1px solid var(--border); transition: all var(--transition);
}
.screenshot-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.screenshot-img { overflow: hidden; }
.screenshot-img img { width: 100%; height: auto; display: block; transition: transform var(--transition); }
.screenshot-card:hover .screenshot-img img { transform: scale(1.02); }
.screenshot-label { padding: 20px 24px; }
.screenshot-label h4 { font-size: 16px; font-weight: 700; margin-bottom: 4px; }
.screenshot-label p { font-size: 13px; color: var(--text-secondary); }

/* ===========================
   All Features Grid
   =========================== */
.all-features { padding: 100px 0; }
.all-features-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.af-card {
  padding: 24px; border-radius: var(--radius-lg);
  border: 1px solid var(--border); transition: all var(--transition);
  text-align: center;
}
.af-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: rgba(108, 99, 255, 0.2); }
.af-icon {
  width: 48px; height: 48px; display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-md); margin: 0 auto 12px;
}
.af-icon.blue { background: #EEF0FF; color: #6C63FF; }
.af-icon.green { background: #E8F5E9; color: #4CAF50; }
.af-icon.purple { background: #F3E8FF; color: #9333EA; }
.af-icon.orange { background: #FFF3E0; color: #F57C00; }
.af-icon.pink { background: #FCE4EC; color: #E91E63; }
.af-card h4 { font-size: 14px; font-weight: 700; margin-bottom: 4px; }
.af-card p { font-size: 12px; color: var(--text-light); line-height: 1.5; }

/* ===========================
   How It Works
   =========================== */
.how-it-works { padding: 100px 0; background: var(--bg-subtle); }
.steps-grid { display: flex; align-items: flex-start; justify-content: center; }
.step-card { flex: 1; max-width: 320px; text-align: center; padding: 32px; }
.step-number {
  width: 40px; height: 40px; display: flex; align-items: center; justify-content: center;
  background: var(--primary); color: #fff; border-radius: 50%;
  font-size: 16px; font-weight: 800; font-family: 'Inter', sans-serif; margin: 0 auto 20px;
}
.step-icon { color: var(--primary); margin-bottom: 20px; display: flex; justify-content: center; }
.step-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 12px; }
.step-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }
.step-connector { display: flex; align-items: center; padding-top: 52px; }

/* ===========================
   Benefits
   =========================== */
.benefits { padding: 100px 0; }
.benefits-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.benefit-card {
  padding: 32px; border-radius: var(--radius-lg);
  border: 1px solid var(--border); transition: all var(--transition);
}
.benefit-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: rgba(108, 99, 255, 0.2); }
.benefit-icon {
  width: 64px; height: 64px; display: flex; align-items: center; justify-content: center;
  background: var(--primary-bg); color: var(--primary); border-radius: var(--radius-md); margin-bottom: 20px;
}
.benefit-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 12px; }
.benefit-card p { font-size: 14px; color: var(--text-secondary); line-height: 1.7; }

/* ===========================
   Pricing
   =========================== */
.pricing { padding: 100px 0; background: var(--bg-subtle); }
.pricing-grid {
  display: grid !important; grid-template-columns: repeat(3, 1fr) !important; gap: 24px; align-items: stretch;
  max-width: 1200px; margin: 0 auto;
}
.pricing-card {
  background: #fff; border-radius: var(--radius-xl); padding: 40px 32px;
  border: 1px solid var(--border); display: flex; flex-direction: column;
  position: relative; transition: all var(--transition);
}
.pricing-card:hover { box-shadow: var(--shadow-md); }
.pricing-card.popular {
  border-color: var(--primary);
  box-shadow: 0 8px 32px rgba(108, 99, 255, 0.15); transform: scale(1.02);
}
.pricing-card.popular:hover { box-shadow: 0 12px 40px rgba(108, 99, 255, 0.2); }
.pricing-badge {
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: #fff; padding: 4px 20px;
  border-radius: 100px; font-size: 13px; font-weight: 700;
}
.pricing-header { margin-bottom: 24px; }
.pricing-header h3 { font-size: 22px; font-weight: 800; margin-bottom: 4px; }
.pricing-desc { font-size: 14px; color: var(--text-light); }
.pricing-price { margin-bottom: 32px; padding-bottom: 32px; border-bottom: 1px solid var(--border); }
.price-amount {
  font-size: 48px; font-weight: 800; font-family: 'Inter', sans-serif;
  color: var(--text); letter-spacing: -0.02em;
}
.price-unit { font-size: 16px; color: var(--text-light); font-weight: 500; }
.pricing-features {
  list-style: none; display: flex; flex-direction: column; gap: 14px;
  margin-bottom: 32px; flex: 1;
}
.pricing-features li { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-secondary); }
.pricing-features li svg { flex-shrink: 0; }
ul.pricing-features.two-col {
  display: grid !important; grid-template-columns: 1fr 1fr !important; gap: 10px 16px;
}

/* ===========================
   FAQ
   =========================== */
.faq { padding: 100px 0; }
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 0; cursor: pointer; list-style: none;
  font-weight: 600; font-size: 15px; transition: color var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--primary); }
.faq-item summary svg { flex-shrink: 0; color: var(--text-light); transition: transform var(--transition); }
.faq-item[open] summary svg { transform: rotate(180deg); }
.faq-answer { padding: 0 0 20px; }
.faq-answer p { font-size: 14px; color: var(--text-secondary); line-height: 1.8; }

/* ===========================
   CTA
   =========================== */
.cta { padding: 100px 0; }
.cta-inner {
  position: relative;
  background: linear-gradient(135deg, var(--primary) 0%, #4338CA 100%);
  border-radius: var(--radius-xl); padding: 80px 60px; text-align: center; overflow: hidden;
}
.cta-bg-pattern {
  position: absolute; inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.08) 1px, transparent 0);
  background-size: 32px 32px;
}
.cta-inner h2 {
  font-size: clamp(28px, 3vw, 40px); font-weight: 800; color: #fff;
  line-height: 1.4; margin-bottom: 16px; position: relative;
}
.cta-inner p {
  font-size: 16px; color: rgba(255, 255, 255, 0.8);
  margin-bottom: 36px; position: relative;
}
.cta-buttons { position: relative; }

/* ===========================
   Footer
   =========================== */
.footer { background: var(--bg-dark); color: #fff; padding: 64px 0 32px; }
.footer-inner {
  display: flex; justify-content: space-between; gap: 48px; margin-bottom: 48px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand p { font-size: 14px; color: rgba(255, 255, 255, 0.5); line-height: 1.7; }
.footer-links { display: flex; gap: 64px; }
.footer-col h4 { font-size: 14px; font-weight: 700; margin-bottom: 16px; color: rgba(255, 255, 255, 0.8); }
.footer-col a {
  display: block; font-size: 14px; color: rgba(255, 255, 255, 0.5);
  padding: 4px 0; transition: color var(--transition);
}
.footer-col a:hover { color: #fff; }
.footer-bottom { padding-top: 32px; border-top: 1px solid rgba(255, 255, 255, 0.1); }
.footer-bottom p { font-size: 13px; color: rgba(255, 255, 255, 0.3); }

/* ===========================
   Responsive
   =========================== */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { max-width: 600px; margin: 0 auto; }
  .feature-block { grid-template-columns: 1fr; gap: 40px; }
  .feature-block.reverse { direction: ltr; }
  .pain-grid { grid-template-columns: repeat(2, 1fr); }
  .all-features-grid { grid-template-columns: repeat(3, 1fr); }
  .benefits-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-card.popular { transform: none; }
}

@media (max-width: 768px) {
  .nav, .header-actions { display: none; }
  .hamburger { display: flex; }
  .header.nav-open .nav {
    display: flex; flex-direction: column; position: absolute;
    top: 72px; left: 0; right: 0; background: #fff;
    padding: 24px; gap: 16px; border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }
  .header.nav-open .header-actions {
    display: flex; position: absolute;
    top: calc(72px + 240px); left: 0; right: 0;
    background: #fff; padding: 0 24px 24px; justify-content: center;
  }
  .hero-title { font-size: 32px; }
  .hero-description br { display: none; }
  .hero-cta { flex-direction: column; }
  .hero-stats { flex-wrap: wrap; gap: 20px; }
  .hero-stat-divider { display: none; }
  .pain-grid { grid-template-columns: 1fr; }
  .screenshots-grid { grid-template-columns: 1fr; }
  .all-features-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { flex-direction: column; align-items: center; }
  .step-connector { transform: rotate(90deg); padding: 0; }
  .benefits-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: repeat(3, 1fr) !important; max-width: 100%; }
  ul.pricing-features.two-col { display: grid !important; grid-template-columns: 1fr 1fr !important; }
  .section-title br { display: none; }
  .cta-inner { padding: 48px 24px; }
  .footer-inner { flex-direction: column; gap: 32px; }
  .footer-links { gap: 32px; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero { padding: 120px 0 60px; }
  .hero-title { font-size: 28px; }
  .all-features-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .af-card { padding: 16px; }
}