/* ============================================
   DIGITAL FRONT - Claude Code 導入支援 LP
   CSS Design System
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  --color-primary: #3B5BF6;
  --color-primary-dark: #2A40D4;
  --color-primary-light: #6B8BFF;
  --color-accent: #7C4DFF;
  --color-accent-light: #B39DFF;
  --color-dark: #0B0F2A;
  --color-dark-2: #141836;
  --color-dark-3: #1E2448;
  --color-text: #2D3250;
  --color-text-muted: #6B7299;
  --color-text-light: #9BA5CC;
  --color-bg: #FFFFFF;
  --color-bg-light: #F5F7FF;
  --color-bg-lighter: #F0F2FF;
  --color-border: #E4E8FF;
  --color-success: #10B981;
  --color-warning: #F59E0B;

  --font-primary: 'Noto Sans JP', 'Inter', sans-serif;
  --font-en: 'Inter', sans-serif;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(59, 91, 246, 0.08);
  --shadow-md: 0 8px 32px rgba(59, 91, 246, 0.12);
  --shadow-lg: 0 16px 64px rgba(59, 91, 246, 0.16);
  --shadow-card: 0 4px 24px rgba(11, 15, 42, 0.08);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);

  --header-h: 72px;
  --container-max: 1200px;
  --container-pad: 24px;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-primary);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition-fast); }
ul, ol { list-style: none; }
button { border: none; background: none; cursor: pointer; font: inherit; }
input, select, textarea {
  font-family: var(--font-primary);
  font-size: 1rem;
}

/* ---------- Utility ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}
.section-padding { padding: 96px 0; }
.bg-light-section { background: var(--color-bg-light); }
.bg-dark-section { background: var(--color-dark); }
.sp-only { display: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  transition: var(--transition);
  white-space: nowrap;
  cursor: pointer;
  border: 2px solid transparent;
}
.btn-sm { padding: 10px 20px; font-size: 0.875rem; }
.btn-lg { padding: 18px 40px; font-size: 1.05rem; }
.btn-block { width: 100%; justify-content: center; }

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: white;
  box-shadow: 0 4px 20px rgba(59, 91, 246, 0.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(59, 91, 246, 0.45);
  color: white;
}

.btn-outline {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: transparent;
}
.btn-outline:hover {
  background: var(--color-primary);
  color: white;
  transform: translateY(-2px);
}

.btn-white {
  background: white;
  color: var(--color-primary);
  font-weight: 700;
  box-shadow: var(--shadow-md);
}
.btn-white:hover {
  background: var(--color-bg-light);
  transform: translateY(-2px);
  color: var(--color-primary);
}

/* ---------- Section Header ---------- */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-header.light .section-title,
.section-header.light .section-desc { color: white; }
.section-header.light .section-tag { background: rgba(255,255,255,0.15); color: rgba(255,255,255,0.8); }

.section-tag {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  background: var(--color-bg-lighter);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 6px 16px;
  margin-bottom: 16px;
  text-transform: uppercase;
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 900;
  line-height: 1.3;
  color: var(--color-dark);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

/* ============================================
   HEADER
   ============================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}
.site-header.scrolled {
  box-shadow: var(--shadow-md);
}
.header-inner {
  display: flex;
  align-items: center;
  height: 100%;
  gap: 32px;
}
.header-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.header-logo-img {
  height: 44px;
  width: auto;
  display: block;
}
.header-nav { flex: 1; }
.header-nav ul {
  display: flex;
  align-items: center;
  gap: 4px;
}
.header-nav a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}
.header-nav a:hover {
  color: var(--color-primary);
  background: var(--color-bg-lighter);
}
.header-cta { flex-shrink: 0; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 32px;
  padding: 4px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: var(--header-h);
  background: linear-gradient(160deg, #FAFBFF 0%, #EEF2FF 50%, #F5F0FF 100%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.hero-shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
}
.shape-1 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, #4B6CF720, transparent);
  top: -200px; right: -100px;
  animation: float1 8s ease-in-out infinite;
}
.shape-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #7C4DFF20, transparent);
  bottom: -100px; left: -50px;
  animation: float2 10s ease-in-out infinite;
}
.shape-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, #3B5BF615, transparent);
  top: 50%; left: 40%;
  animation: float3 12s ease-in-out infinite;
}
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,91,246,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,91,246,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
}
@keyframes float1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(20px, -30px) scale(1.05); }
}
@keyframes float2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-15px, 20px) scale(1.03); }
}
@keyframes float3 {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(10px, -15px); }
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding-top: 80px;
  padding-bottom: 80px;
  max-width: 860px;
}

.hero-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 8px 18px;
  margin-bottom: 28px;
  box-shadow: var(--shadow-sm);
}
.badge-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.2); }
}

.hero-title-sub {
  display: block;
  font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}
.hero-title-main {
  display: block;
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  font-weight: 900;
  line-height: 1.2;
  color: var(--color-dark);
  letter-spacing: -0.02em;
}
.hero-title-main em {
  font-style: normal;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-title-main .highlight {
  position: relative;
  display: inline-block;
  font-size: 1.1em;
  background: linear-gradient(135deg, #FF6B35, #FF4081);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  color: var(--color-text-muted);
  margin: 24px 0 40px;
  line-height: 1.9;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 28px 40px;
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}
.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.stat-num {
  font-family: var(--font-en);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}
.stat-num small {
  font-size: 1rem;
  font-weight: 700;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 500;
  white-space: nowrap;
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--color-border);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--color-text-light);
  font-size: 0.7rem;
  font-family: var(--font-en);
  letter-spacing: 0.15em;
  animation: scroll-bounce 2s ease-in-out infinite;
}
@keyframes scroll-bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.7; }
  50% { transform: translateX(-50%) translateY(6px); opacity: 1; }
}

/* ============================================
   SOCIAL PROOF
   ============================================ */
.social-proof {
  padding: 40px 0;
  border-bottom: 1px solid var(--color-border);
  background: white;
}
.proof-label {
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-light);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.proof-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.proof-logo-item {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-muted);
  padding: 8px 20px;
  background: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
}

/* ============================================
   CHALLENGES
   ============================================ */
.challenges-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.challenge-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.challenge-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  opacity: 0;
  transition: var(--transition);
}
.challenge-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.challenge-card:hover::before { opacity: 1; }

.challenge-icon {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-bg-lighter), var(--color-bg-light));
  border: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
  font-size: 1.5rem;
  color: var(--color-primary);
}
.challenge-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 12px;
  line-height: 1.5;
}
.challenge-card p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.challenges-arrow {
  text-align: center;
  color: var(--color-primary);
}
.challenges-arrow i {
  font-size: 2rem;
  display: block;
  margin-bottom: 12px;
  animation: bounce-down 1.5s ease-in-out infinite;
}
@keyframes bounce-down {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(8px); }
}
.challenges-arrow p {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  font-weight: 500;
}
.challenges-arrow p strong { color: var(--color-primary); }

/* ============================================
   ABOUT CLAUDE CODE
   ============================================ */
.claude-features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}
.claude-feature {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: var(--transition);
}
.claude-feature:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-4px);
}
.cf-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(59,91,246,0.3), rgba(124,77,255,0.3));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  color: var(--color-accent-light);
  margin-bottom: 16px;
}
.claude-feature h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: white;
  margin-bottom: 10px;
}
.claude-feature p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
}

.claude-cta-banner {
  background: linear-gradient(135deg, rgba(59,91,246,0.2), rgba(124,77,255,0.2));
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-xl);
  padding: 40px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}
.claude-cta-banner p {
  color: rgba(255,255,255,0.9);
  font-size: 1.05rem;
  font-weight: 500;
  line-height: 1.6;
}
.claude-cta-banner p strong { color: white; font-weight: 700; }

/* ============================================
   SERVICE PHASES
   ============================================ */
.service-phases {
  display: flex;
  align-items: stretch;
  gap: 0;
  position: relative;
}
.phase-card {
  flex: 1;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 28px;
  position: relative;
  transition: var(--transition);
  overflow: hidden;
}
.phase-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}
.phase-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.phase-card:hover::after { transform: scaleX(1); }

.phase-num {
  font-family: var(--font-en);
  font-size: 3rem;
  font-weight: 900;
  color: var(--color-bg-lighter);
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -0.05em;
}
.phase-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  color: white;
  margin-bottom: 16px;
  box-shadow: 0 4px 16px rgba(59,91,246,0.3);
}
.phase-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 12px;
  line-height: 1.5;
}
.phase-card p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}
.phase-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.phase-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.825rem;
  color: var(--color-text-muted);
}
.phase-list i { color: var(--color-success); font-size: 0.75rem; }

.phase-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
  color: var(--color-primary);
  font-size: 1.2rem;
  opacity: 0.5;
  flex-shrink: 0;
}

/* ============================================
   FEATURES
   ============================================ */
.features-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 24px;
}
.feature-card {
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}
.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.feature-card--large {
  background: linear-gradient(160deg, var(--color-dark) 0%, var(--color-dark-3) 100%);
  border-color: transparent;
}
.feature-card-inner { padding: 40px 36px; height: 100%; }

.feature-num {
  font-family: var(--font-en);
  font-size: 4rem;
  font-weight: 900;
  color: var(--color-bg-lighter);
  line-height: 1;
  margin-bottom: 16px;
  letter-spacing: -0.05em;
}
.feature-card--large .feature-num { color: rgba(255,255,255,0.08); }

.fc-icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  color: white;
  margin-bottom: 20px;
  box-shadow: 0 4px 16px rgba(59,91,246,0.3);
}
.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 12px;
}
.feature-card--large h3 { color: white; }
.feature-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}
.feature-card--large p { color: rgba(255,255,255,0.65); }
.feature-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.feature-tags span {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--color-bg-lighter);
  color: var(--color-primary);
  border: 1px solid var(--color-border);
}
.feature-card--large .feature-tags span {
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.8);
  border-color: rgba(255,255,255,0.2);
}

/* ============================================
   RESULTS
   ============================================ */
.results-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 56px;
  padding: 48px;
  background: linear-gradient(135deg, var(--color-dark), var(--color-dark-3));
  border-radius: var(--radius-xl);
}
.result-stat {
  text-align: center;
  padding: 16px;
  border-right: 1px solid rgba(255,255,255,0.08);
}
.result-stat:last-child { border-right: none; }

.rs-num {
  font-family: var(--font-en);
  font-size: 3rem;
  font-weight: 900;
  background: linear-gradient(135deg, #6B8BFF, #B39DFF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}
.rs-num span { font-size: 1.5rem; }
.rs-label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  font-weight: 500;
  line-height: 1.5;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  transition: var(--transition);
  position: relative;
}
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.tc-quote {
  font-size: 1.5rem;
  color: var(--color-primary);
  opacity: 0.3;
  margin-bottom: 16px;
}
.tc-text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 24px;
}
.tc-author {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}
.tc-avatar {
  font-size: 2.2rem;
  color: var(--color-text-light);
}
.tc-author strong {
  display: block;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 2px;
}
.tc-author span {
  font-size: 0.8rem;
  color: var(--color-text-light);
}

/* ============================================
   FLOW
   ============================================ */
.flow-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
}
.flow-step {
  flex: 1;
  text-align: center;
  padding: 40px 24px;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  position: relative;
  transition: var(--transition);
}
.flow-step:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}
.fs-num {
  font-family: var(--font-en);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  background: var(--color-bg-lighter);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 20px;
}
.fs-icon {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  color: white;
  margin: 0 auto 20px;
  box-shadow: 0 4px 20px rgba(59,91,246,0.3);
}
.flow-step h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 12px;
  line-height: 1.5;
}
.flow-step p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}
.fs-duration {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-bg-lighter);
  border-radius: var(--radius-full);
  padding: 4px 14px;
  display: inline-block;
  border: 1px solid var(--color-border);
}
.flow-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
  color: var(--color-primary);
  font-size: 1.2rem;
  opacity: 0.4;
  flex-shrink: 0;
  padding-top: 80px;
}

/* ============================================
   PRICING
   ============================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}
.pricing-card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 40px 36px;
  position: relative;
  transition: var(--transition);
}
.pricing-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.pricing-card--featured {
  background: linear-gradient(160deg, var(--color-dark), var(--color-dark-3));
  border-color: transparent;
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}
.pricing-card--featured:hover { transform: scale(1.02) translateY(-6px); }

.pc-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  background: var(--color-bg-lighter);
  color: var(--color-primary);
  border: 1px solid var(--color-border);
  margin-bottom: 20px;
}
.pc-badge.popular {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: white;
  border-color: transparent;
}
.pricing-card--featured .pc-badge:not(.popular) {
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.7);
  border-color: rgba(255,255,255,0.2);
}
.pc-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 20px;
}
.pricing-card--featured .pc-name { color: white; }

.pc-price {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  margin-bottom: 16px;
}
.pc-price-from {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-primary);
  line-height: 1.5;
}
.pc-price-num {
  font-family: var(--font-en);
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--color-dark);
  line-height: 1;
}
.pc-price-num small { font-size: 1.1rem; font-weight: 700; }
.pricing-card--featured .pc-price-from,
.pricing-card--featured .pc-price-num { color: white; }

.pc-desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--color-border);
}
.pricing-card--featured .pc-desc { color: rgba(255,255,255,0.6); border-color: rgba(255,255,255,0.1); }

.pc-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}
.pc-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  color: var(--color-text);
}
.pc-features li i { font-size: 0.8rem; flex-shrink: 0; }
.pc-features li i.fa-check { color: var(--color-success); }
.pc-features li i.fa-times { color: #E0E0E0; }
.pc-features li.disabled { color: var(--color-text-light); }
.pricing-card--featured .pc-features li { color: rgba(255,255,255,0.8); }
.pricing-card--featured .pc-features li.disabled { color: rgba(255,255,255,0.3); }
.pricing-card--featured .btn-outline {
  border-color: rgba(255,255,255,0.4);
  color: rgba(255,255,255,0.8);
}
.pricing-card--featured .btn-outline:hover {
  background: rgba(255,255,255,0.1);
  color: white;
}
.pricing-note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-light);
}

/* ============================================
   FAQ
   ============================================ */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--color-primary); }
.faq-item.open { border-color: var(--color-primary); box-shadow: var(--shadow-sm); }

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 28px;
  text-align: left;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-dark);
  cursor: pointer;
  transition: var(--transition-fast);
}
.faq-question:hover { color: var(--color-primary); }
.faq-icon {
  font-size: 0.9rem;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: var(--transition);
}
.faq-item.open .faq-icon { transform: rotate(45deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.faq-answer p {
  padding: 0 28px 24px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  border-top: 1px solid var(--color-border);
  padding-top: 20px;
}
.faq-answer p strong { color: var(--color-primary); }

/* ============================================
   CONTACT
   ============================================ */
.contact-centered {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}
.contact-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 900;
  color: white;
  line-height: 1.3;
  margin: 16px 0 20px;
}
.contact-desc {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.8;
  margin-bottom: 32px;
}
.contact-points {
  display: inline-flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 40px;
  text-align: left;
}
.contact-points li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.85);
  font-weight: 500;
}
.contact-points i { color: var(--color-success); font-size: 1rem; }
.contact-btn {
  font-size: 1.1rem;
  padding: 20px 56px;
  box-shadow: 0 6px 28px rgba(59,91,246,0.45);
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: var(--color-dark);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 64px 0 0;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-logo {
  display: inline-flex;
  align-items: center;
  margin-bottom: 20px;
  background: white;
  border-radius: 10px;
  padding: 8px 16px;
}
.footer-logo-img {
  height: 52px;
  width: auto;
  display: block;
}
.footer-brand p {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.45);
  line-height: 1.7;
}
.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.footer-link-group h4 {
  font-size: 0.8rem;
  font-weight: 700;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.footer-link-group ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-link-group a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  transition: var(--transition-fast);
}
.footer-link-group a:hover { color: white; }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.3);
}
.footer-back a { color: rgba(255,255,255,0.4); transition: var(--transition-fast); }
.footer-back a:hover { color: var(--color-primary-light); }

/* ============================================
   PAGE TOP
   ============================================ */
.page-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: white;
  font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(59,91,246,0.4);
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: var(--transition);
  z-index: 999;
}
.page-top.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.page-top:hover { transform: translateY(-4px); box-shadow: 0 8px 32px rgba(59,91,246,0.5); }

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */
[data-aos] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-aos].aos-animate {
  opacity: 1;
  transform: translateY(0);
}
[data-delay="100"] { transition-delay: 0.1s; }
[data-delay="200"] { transition-delay: 0.2s; }
[data-delay="300"] { transition-delay: 0.3s; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .challenges-grid { grid-template-columns: repeat(2, 1fr); }
  .service-phases { flex-wrap: wrap; gap: 16px; }
  .phase-card { min-width: calc(50% - 40px); }
  .phase-arrow:nth-child(4) { display: none; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .feature-card--large { grid-column: 1 / -1; }
  .testimonials-grid { grid-template-columns: 1fr 1fr; }
  .testimonial-card:last-child { grid-column: 1 / -1; }
  .results-stats-row { grid-template-columns: repeat(2, 1fr); }
  .result-stat:nth-child(2) { border-right: none; }
  .contact-inner { grid-template-columns: 1fr; gap: 48px; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }
  .section-padding { padding: 72px 0; }
  .sp-only { display: inline; }

  /* Header */
  .header-nav {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: white;
    border-bottom: 1px solid var(--color-border);
    padding: 16px 24px 24px;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    z-index: 999;
  }
  .header-nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .header-nav ul { flex-direction: column; gap: 4px; }
  .header-nav a { display: block; padding: 12px 16px; }
  .header-cta { display: none; }
  .hamburger { display: flex; }

  /* Hero */
  .hero-inner { padding-top: 40px; align-items: center; text-align: center; }
  .hero-cta-group { justify-content: center; flex-direction: column; align-items: center; }
  .hero-stats {
    flex-direction: column;
    gap: 20px;
    padding: 28px 32px;
    width: 100%;
  }
  .stat-divider { width: 100%; height: 1px; }

  /* Challenges */
  .challenges-grid { grid-template-columns: 1fr 1fr; }

  /* Claude features */
  .claude-features-grid { grid-template-columns: 1fr; }
  .claude-cta-banner {
    flex-direction: column;
    text-align: center;
    gap: 24px;
  }

  /* Service */
  .service-phases { flex-direction: column; }
  .phase-arrow { transform: rotate(90deg); padding: 0; }
  .phase-card { min-width: 100%; }

  /* Features */
  .features-grid { grid-template-columns: 1fr; }

  /* Results */
  .results-stats-row { padding: 32px 24px; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .testimonial-card:last-child { grid-column: auto; }

  /* Flow */
  .flow-steps { flex-direction: column; }
  .flow-arrow { transform: rotate(90deg); padding: 0; }

  /* Pricing */
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-card--featured { transform: none; }
  .pricing-card--featured:hover { transform: translateY(-6px); }

  /* Footer */
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

  /* Page top */
  .page-top { bottom: 20px; right: 20px; }
}

@media (max-width: 480px) {
  :root { --container-pad: 16px; }
  .challenges-grid { grid-template-columns: 1fr; }
  .hero-stats { padding: 24px; }
  .results-stats-row { grid-template-columns: repeat(2, 1fr); }
}