/* =========================================================
   NOVION Landing — styles.css
   Design system: Linear + Stripe + Vercel feel (Professional SaaS)
   Breakpoints: 1200px (xl), 1024px (lg), 768px (md), 480px (sm)
   ========================================================= */

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

:root {
  --bg: #f5f7fb;
  --lime: #84cc16;
  --lime-dark: #65a30d;
  --lime-light: #d9f99d;
  --lime-glow: rgba(132, 204, 22, 0.15);
  --navy: #0f172a;
  --navy-2: #1e293b;
  --navy-3: #334155;
  --white: #ffffff;
  --gray-1: #f8fafc;
  --gray-2: #f1f5f9;
  --gray-3: #e2e8f0;
  --gray-4: #cbd5e1;
  --gray-5: #94a3b8;
  --gray-6: #64748b;
  --gray-7: #475569;
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --font: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 3px rgba(15,23,42,0.08), 0 1px 2px rgba(15,23,42,0.05);
  --shadow: 0 4px 16px rgba(15,23,42,0.08), 0 2px 6px rgba(15,23,42,0.05);
  --shadow-md: 0 8px 32px rgba(15,23,42,0.10), 0 4px 12px rgba(15,23,42,0.06);
  --shadow-lg: 0 20px 60px rgba(15,23,42,0.12), 0 8px 24px rgba(15,23,42,0.08);
  --shadow-lime: 0 8px 32px rgba(132, 204, 22, 0.25);
  --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: var(--font); cursor: pointer; border: none; background: none; }

/* ── Container ── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

/* ── Utility ── */
.w-full { width: 100%; }
.strike {
  text-decoration: line-through;
  color: var(--gray-6);
  font-weight: 400;
}

/* =========================================================
   ANIMATIONS
   ========================================================= */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.65s cubic-bezier(0.22, 1, 0.36, 1);
}
.fade-up.in-view { opacity: 1; transform: translateY(0); }

.delay-100 { transition-delay: 0.1s; }
.delay-150 { transition-delay: 0.15s; }
.delay-200 { transition-delay: 0.2s; }
.delay-250 { transition-delay: 0.25s; }
.delay-300 { transition-delay: 0.3s; }
.delay-350 { transition-delay: 0.35s; }
.delay-400 { transition-delay: 0.4s; }
.delay-500 { transition-delay: 0.5s; }

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
  white-space: nowrap;
  cursor: pointer;
}
.btn:hover { transform: scale(1.03); }
.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--lime);
  color: var(--navy);
  box-shadow: 0 2px 8px rgba(132,204,22,0.3);
}
.btn-primary:hover {
  background: var(--lime-dark);
  box-shadow: var(--shadow-lime);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--gray-3);
}
.btn-outline:hover {
  border-color: var(--navy-3);
  box-shadow: var(--shadow-sm);
}

.btn-outline-light {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.35);
}
.btn-outline-light:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.12);
  color: var(--white);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover { background: var(--gray-2); }

.btn-ghost-lime {
  background: transparent;
  color: var(--lime-dark);
  font-weight: 700;
  padding: 8px 0;
}
.btn-ghost-lime:hover { color: var(--navy); }

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
  border-radius: var(--radius-lg);
}

.btn-kakao {
  background: #FEE500;
  color: #3A1D00;
  font-weight: 700;
}
.btn-kakao:hover {
  background: #f5d800;
  box-shadow: 0 8px 24px rgba(254,229,0,0.4);
}

/* =========================================================
   HEADER
   ========================================================= */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0;
  transition: background var(--transition), box-shadow var(--transition), backdrop-filter var(--transition);
}
.site-header.scrolled {
  background: rgba(245, 247, 251, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: 0 1px 0 var(--gray-3);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 64px;
}

/* ── Nav Logo (header + footer) ── */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}

.nav-logo-mark {
  width: 32px;
  height: 32px;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}

.nav-logo-text {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--navy);
  font-family: 'Pretendard', system-ui, sans-serif;
  line-height: 1;
  white-space: nowrap;
}

/* Legacy .logo class kept for backward compat */
.logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--navy);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 8px;
}
.nav-links a {
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: background var(--transition), color var(--transition);
}
.nav-links a:hover { background: var(--gray-2); color: var(--navy); }

.header-cta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.header-github {
  padding: 8px 10px;
  color: var(--text-secondary);
}
.header-github:hover { color: var(--navy); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  margin-left: auto;
  border-radius: var(--radius-sm);
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================================
   SECTION COMMON
   ========================================================= */
.section {
  padding: 128px 0;
  position: relative;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--lime-dark);
  background: rgba(132, 204, 22, 0.1);
  padding: 5px 12px;
  border-radius: 100px;
  margin-bottom: 20px;
}
.section-label.light {
  color: var(--lime-light);
  background: rgba(217, 249, 157, 0.15);
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.2;
  color: var(--navy);
  margin-bottom: 20px;
}

.section-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 540px;
  line-height: 1.7;
  margin-bottom: 64px;
}

.highlight {
  color: var(--lime-dark);
}

/* =========================================================
   HERO
   ========================================================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  padding-bottom: 80px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, #f8fafc 0%, #f0f9e8 40%, #f5f7fb 100%);
}

.hero-glow {
  position: absolute;
  top: -200px;
  right: -100px;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(132,204,22,0.12) 0%, transparent 70%);
  pointer-events: none;
  border-radius: 50%;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  width: 100%;
}

.hero-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--lime-dark);
  background: rgba(132,204,22,0.12);
  border: 1px solid rgba(132,204,22,0.25);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 28px;
}

.hero-title {
  font-size: clamp(2.6rem, 5.5vw, 4.25rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1.1;
  color: var(--navy);
  margin-bottom: 24px;
}
.hero-title .highlight {
  background: linear-gradient(135deg, var(--lime-dark) 0%, #4ade80 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

/* Trust badges strip */
.hero-trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 40px;
}

.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--gray-7);
  background: var(--white);
  border: 1px solid var(--gray-3);
  padding: 4px 12px;
  border-radius: 100px;
  box-shadow: var(--shadow-sm);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 28px;
}
.stat-item { display: flex; flex-direction: column; gap: 2px; }
.stat-num {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--navy);
  line-height: 1;
}
.stat-unit { font-size: 0.9rem; font-weight: 600; }
.stat-label { font-size: 0.78rem; color: var(--text-muted); }
.stat-divider { width: 1px; height: 36px; background: var(--gray-3); }

/* Mockup */
.hero-visual { display: flex; justify-content: flex-end; }
.mockup-wrapper { position: relative; width: 100%; max-width: 520px; }

.mockup-app {
  width: 100%;
  height: auto;
  border-radius: 14px;
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(15,23,42,0.05);
  filter: drop-shadow(0 24px 48px rgba(15,23,42,0.15));
}

.float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  border: 1px solid var(--gray-3);
  border-radius: var(--radius);
  padding: 10px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  animation: float 3.5s ease-in-out infinite;
}
.float-card-1 {
  bottom: 14%;
  left: -60px;
  animation-delay: 0s;
}
.float-card-2 {
  top: 14%;
  right: -40px;
  animation-delay: 1.75s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--white);
  border: 1.5px solid var(--gray-3);
  box-shadow: var(--shadow-sm);
  animation: bounce 2s ease-in-out infinite;
  transition: box-shadow var(--transition);
}
.scroll-indicator:hover { box-shadow: var(--shadow); }

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* =========================================================
   PROBLEM
   ========================================================= */
.problem-section { background: var(--white); }

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 52px;
}

.problem-card {
  background: var(--gray-1);
  border: 1px solid var(--gray-2);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.problem-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--gray-3);
}

.problem-icon {
  width: 56px;
  height: 56px;
  background: var(--white);
  border: 1px solid var(--gray-3);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}

.problem-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  color: var(--navy);
}
.problem-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 20px;
}

.problem-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--gray-7);
  background: var(--gray-2);
  padding: 4px 10px;
  border-radius: 100px;
  letter-spacing: 0.04em;
}

.problem-footer {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 28px 32px;
  background: linear-gradient(135deg, rgba(132,204,22,0.06) 0%, rgba(132,204,22,0.02) 100%);
  border: 1px solid rgba(132,204,22,0.2);
  border-radius: var(--radius-xl);
}
.problem-footer p {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  flex: 1;
}

/* =========================================================
   SOLUTION
   ========================================================= */
.solution-section {
  background: var(--bg);
}

.workflow-steps {
  display: flex;
  align-items: center;
  gap: 0;
  justify-content: center;
  margin-bottom: 48px;
}

.workflow-step {
  flex: 1;
  max-width: 280px;
  background: var(--white);
  border: 1px solid var(--gray-3);
  border-radius: var(--radius-xl);
  padding: 36px 28px;
  text-align: center;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}
.workflow-step:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.step-num {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: var(--lime-dark);
  margin-bottom: 16px;
}

.step-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, rgba(132,204,22,0.1) 0%, rgba(132,204,22,0.05) 100%);
  border: 1px solid rgba(132,204,22,0.2);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
}

.workflow-step h3 {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
  color: var(--navy);
}
.workflow-step p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 16px;
}

.step-saving {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--lime-dark);
  background: rgba(132,204,22,0.1);
  border: 1px solid rgba(132,204,22,0.2);
  padding: 4px 12px;
  border-radius: 100px;
}
.step-saving strong { font-weight: 800; }

.workflow-arrow {
  flex-shrink: 0;
  padding: 0 8px;
  opacity: 0.6;
}

.solution-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 18px 28px;
  background: rgba(132,204,22,0.07);
  border: 1px dashed rgba(132,204,22,0.3);
  border-radius: var(--radius-xl);
  max-width: 560px;
  margin: 0 auto;
}

/* =========================================================
   FEATURES
   ========================================================= */
.features-section {
  background: var(--navy);
  color: var(--white);
}
.features-section .section-title { color: var(--white); }
.features-section .section-sub { color: var(--gray-5); }
.features-section .section-label {
  color: var(--lime);
  background: rgba(132, 204, 22, 0.12);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  padding: 32px 28px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
}
.feature-card:hover {
  transform: translateY(-5px);
  background: rgba(255,255,255,0.07);
  border-color: rgba(132,204,22,0.25);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3), 0 0 0 1px rgba(132,204,22,0.1);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(132,204,22,0.1);
  border: 1px solid rgba(132,204,22,0.2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-num {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--lime);
  margin-bottom: 6px;
  line-height: 1;
}

.feature-card h3 {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white);
  margin-bottom: 10px;
  text-transform: none;
}
.feature-card p {
  font-size: 0.875rem;
  color: var(--gray-5);
  line-height: 1.65;
}

/* =========================================================
   COMPLIANCE
   ========================================================= */
.compliance-section {
  background: var(--white);
}

.compliance-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.compliance-card {
  background: var(--gray-1);
  border: 1px solid var(--gray-2);
  border-radius: var(--radius-xl);
  padding: 32px 24px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.compliance-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(132,204,22,0.3);
}

.compliance-icon {
  width: 52px;
  height: 52px;
  background: rgba(132,204,22,0.08);
  border: 1px solid rgba(132,204,22,0.18);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.compliance-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--navy);
  margin-bottom: 10px;
}
.compliance-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.compliance-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.comp-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--lime-dark);
  background: rgba(132,204,22,0.08);
  border: 1px solid rgba(132,204,22,0.2);
  padding: 8px 18px;
  border-radius: 100px;
}

/* =========================================================
   PRICING
   ========================================================= */
.pricing-section { background: var(--bg); }

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: start;
  margin-bottom: 52px;
}

.pricing-card {
  background: var(--white);
  border: 1.5px solid var(--gray-3);
  border-radius: var(--radius-xl);
  padding: 36px 28px;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}
.pricing-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}

.pricing-card-best {
  background: var(--navy);
  border-color: var(--navy);
  transform: scale(1.025);
}
.pricing-card-best:hover {
  transform: scale(1.025) translateY(-5px);
  box-shadow: var(--shadow-lg);
}
.pricing-card-best .pkg-type { color: var(--lime); border-color: rgba(132,204,22,0.3); background: rgba(132,204,22,0.1); }
.pricing-card-best .pkg-label,
.pricing-card-best .pkg-name,
.pricing-card-best .pkg-price,
.pricing-card-best .pkg-desc { color: var(--white); }
.pricing-card-best .pkg-features li { color: rgba(255,255,255,0.85); }
.pricing-card-best .feature-na { color: rgba(255,255,255,0.3); }

.best-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--lime);
  color: var(--navy);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  padding: 4px 14px;
  border-radius: 100px;
}

.pkg-type {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--lime-dark);
  background: rgba(132,204,22,0.1);
  border: 1px solid rgba(132,204,22,0.2);
  padding: 3px 10px;
  border-radius: 100px;
  margin-bottom: 10px;
}

.pkg-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.pkg-name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--navy);
  margin-bottom: 12px;
}

.pkg-price {
  display: flex;
  align-items: baseline;
  gap: 1px;
  margin-bottom: 12px;
}
.price-currency {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.02em;
}
.pricing-card-best .price-currency { color: var(--lime); }
.price-num {
  font-size: 2.2rem;
  font-weight: 900;
  letter-spacing: -0.05em;
  color: var(--navy);
  line-height: 1;
}
.pricing-card-best .price-num { color: var(--lime); }
.price-unit {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-left: 2px;
}
.pricing-card-best .price-unit { color: rgba(255,255,255,0.5); }

.pkg-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
  line-height: 1.6;
}
.pricing-card-best .pkg-desc { color: rgba(255,255,255,0.6); }

.pkg-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}
.pkg-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}
.pkg-features li svg { flex-shrink: 0; }
.feature-na { opacity: 0.4; }

.pkg-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.pkg-inquiry {
  color: var(--text-muted);
  font-size: 0.85rem;
}
.pkg-inquiry:hover { color: var(--text-primary); background: var(--gray-2); }

.pkg-inquiry-light {
  color: rgba(255,255,255,0.55);
  font-size: 0.85rem;
}
.pkg-inquiry-light:hover { color: rgba(255,255,255,0.85); background: rgba(255,255,255,0.08); }

.pkg-payment-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.6;
  text-align: center;
  padding-top: 4px;
}
.pkg-payment-note-light {
  color: rgba(255,255,255,0.35);
}

/* Add-ons */
.addons-section {
  background: var(--white);
  border: 1px solid var(--gray-3);
  border-radius: var(--radius-xl);
  padding: 40px;
  margin-bottom: 32px;
}

.addons-header {
  margin-bottom: 28px;
}
.addons-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}
.addons-header p {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.addons-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.addon-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--gray-1);
  border: 1px solid var(--gray-3);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.addon-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.addon-icon {
  width: 44px;
  height: 44px;
  background: rgba(132,204,22,0.08);
  border: 1px solid rgba(132,204,22,0.15);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.addon-info { flex: 1; }
.addon-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 3px;
}
.addon-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.addon-price {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--lime-dark);
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

/* =========================================================
   USE CASE
   ========================================================= */
.usecase-section { background: var(--bg); }

.usecase-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.usecase-card {
  background: var(--white);
  border: 1px solid var(--gray-3);
  border-radius: var(--radius-xl);
  padding: 32px 24px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.usecase-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.usecase-icon { margin-bottom: 20px; }

.usecase-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.usecase-scenario {
  font-size: 0.83rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 16px;
  font-style: italic;
}

.usecase-result {
  display: flex;
  align-items: flex-start;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--lime-dark);
}
.usecase-result svg { flex-shrink: 0; margin-top: 1px; }

/* =========================================================
   FAQ
   ========================================================= */
.faq-section { background: var(--white); }

.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.faq-item {
  border-bottom: 1px solid var(--gray-3);
}
.faq-item:first-child { border-top: 1px solid var(--gray-3); }

.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 8px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--navy);
  text-align: left;
  transition: color var(--transition);
}
.faq-q:hover { color: var(--lime-dark); }

.faq-chevron {
  flex-shrink: 0;
  transition: transform var(--transition);
}
.faq-q[aria-expanded="true"] .faq-chevron { transform: rotate(180deg); }

.faq-a {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.38s cubic-bezier(0.4, 0, 0.2, 1), padding var(--transition);
  padding: 0 8px;
}
.faq-a.open {
  max-height: 240px;
  padding-bottom: 22px;
}
.faq-a p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.75;
}

/* =========================================================
   CTA
   ========================================================= */
.cta-section {
  background: var(--navy);
  padding: 128px 0;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(132,204,22,0.12) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 100%, rgba(96,165,250,0.06) 0%, transparent 50%);
  pointer-events: none;
}

.cta-inner { position: relative; }
.cta-content { max-width: 640px; margin: 0 auto; }

.cta-title {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 20px;
}
.cta-title .highlight {
  background: linear-gradient(135deg, var(--lime) 0%, #a3e635 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.cta-sub {
  font-size: 1.05rem;
  color: var(--gray-5);
  line-height: 1.7;
  margin-bottom: 44px;
}

.cta-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.cta-note {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
  margin-bottom: 28px;
}

.cta-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 0 auto 28px;
  color: rgba(255,255,255,0.25);
  font-size: 0.82rem;
  max-width: 320px;
}
.cta-divider::before,
.cta-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(255,255,255,0.12);
}
.cta-divider span { white-space: nowrap; }

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer-bottom {
  background: var(--navy);
  border-top: 1px solid rgba(255,255,255,0.07);
  padding-top: 64px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 80px;
  padding-bottom: 52px;
}

.footer-brand .footer-logo { margin-bottom: 12px; }
.footer-brand p {
  font-size: 0.875rem;
  color: var(--gray-6);
  max-width: 240px;
  line-height: 1.65;
}

.footer-nav {
  display: flex;
  gap: 56px;
}
.footer-nav-col { display: flex; flex-direction: column; gap: 10px; }
.footer-nav-col h4 {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray-5);
  margin-bottom: 4px;
}
.footer-nav-col a {
  font-size: 0.875rem;
  color: var(--gray-6);
  transition: color var(--transition);
}
.footer-nav-col a:hover { color: var(--white); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 20px 0;
  display: flex;
  align-items: center;
}
.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.biz-info,
.copyright {
  font-size: 0.78rem;
  color: var(--gray-7);
}

/* =========================================================
   RESPONSIVE — 1024px
   ========================================================= */
@media (max-width: 1024px) {
  .container { padding: 0 28px; }
  .hero-inner { gap: 48px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .usecase-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { gap: 16px; }
  .compliance-grid { grid-template-columns: repeat(2, 1fr); }
  .float-card-1 { left: -24px; }
  .float-card-2 { right: -16px; }
}

/* =========================================================
   RESPONSIVE — 768px (md)
   ========================================================= */
@media (max-width: 768px) {
  .container { padding: 0 20px; }
  .section { padding: 96px 0; }

  /* Header */
  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(245,247,251,0.97);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--gray-3);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 20px 20px;
    gap: 2px;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-slow), opacity var(--transition-slow);
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-links a { padding: 12px 16px; font-size: 1rem; }
  .header-cta { display: none; }
  .hamburger { display: flex; }

  /* Nav logo mobile */
  .nav-logo-text { font-size: 18px; }

  /* Hero */
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }
  .hero-title { font-size: clamp(2.2rem, 8vw, 3rem); }
  .hero-actions { justify-content: center; }
  .hero-trust-badges { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { justify-content: center; }
  .mockup-wrapper { max-width: 440px; }
  .float-card-1 { left: 0; bottom: -12%; font-size: 0.72rem; padding: 8px 12px; }
  .float-card-2 { right: 0; top: -8%; font-size: 0.72rem; padding: 8px 12px; }

  /* Problem */
  .problem-grid { grid-template-columns: 1fr; gap: 16px; }
  .problem-footer { flex-direction: column; text-align: center; }

  /* Solution */
  .workflow-steps {
    flex-direction: column;
    gap: 16px;
    align-items: stretch;
  }
  .workflow-arrow { display: none; }
  .workflow-step { max-width: 100%; }

  /* Features */
  .features-grid { grid-template-columns: 1fr; gap: 16px; }

  /* Compliance */
  .compliance-grid { grid-template-columns: 1fr 1fr; gap: 16px; }

  /* Pricing */
  .pricing-grid { grid-template-columns: 1fr; }
  .pricing-card-best { transform: none; order: -1; }
  .pricing-card-best:hover { transform: translateY(-5px); }
  .addons-grid { grid-template-columns: 1fr; }

  /* Use cases */
  .usecase-grid { grid-template-columns: 1fr 1fr; }

  /* FAQ */
  .faq-list { max-width: 100%; }

  /* CTA */
  .cta-actions { flex-direction: column; align-items: center; }
  .cta-actions .btn { width: 100%; max-width: 320px; justify-content: center; }

  /* Footer */
  .footer-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer-nav { gap: 28px; }
  .footer-bottom .container { flex-direction: column; text-align: center; gap: 6px; }
}

/* =========================================================
   RESPONSIVE — 480px (sm)
   ========================================================= */
@media (max-width: 480px) {
  .section { padding: 80px 0; }
  .hero-title { font-size: clamp(1.9rem, 9vw, 2.4rem); }
  .hero-stats { gap: 16px; }
  .stat-num { font-size: 1.3rem; }
  .section-title { font-size: clamp(1.7rem, 7vw, 2.2rem); }
  .usecase-grid { grid-template-columns: 1fr; }
  .compliance-grid { grid-template-columns: 1fr; }
  .footer-nav { flex-direction: column; gap: 28px; }
  .mockup-app { border-radius: 10px; }
  .float-card { display: none; }
  .cta-title { font-size: clamp(1.8rem, 8vw, 2.4rem); }

  .problem-card { padding: 28px 24px; }
  .pricing-card { padding: 28px 24px; }
  .addons-section { padding: 28px 24px; }
  .compliance-card { padding: 24px 20px; }
  .hero-trust-badges { gap: 6px; }
  .trust-badge { font-size: 0.72rem; }
}

/* =========================================================
   PRINT / REDUCED MOTION
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .fade-up { opacity: 1; transform: none; }
}