/* ============================================
   JACKINS Landing Page - Clean Light Design
   Moulder.ai 디자인 톤 참고 리뉴얼
   ============================================ */

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

:root {
  --jk-red: #E53935;
  --jk-red-dark: #C62828;
  --jk-red-light: #FFEBEE;
  --jk-red-glow: rgba(229, 57, 53, 0.15);
  --jk-blue: #3B82F6;
  --jk-blue-light: #EFF6FF;
  --jk-purple: #7C3AED;
  --jk-purple-light: #F5F3FF;
  --jk-green: #10B981;
  --jk-green-light: #ECFDF5;
  --jk-amber: #F59E0B;
  --jk-white: #FFFFFF;
  --jk-bg: #FAFAFA;
  --jk-gray-50: #F9FAFB;
  --jk-gray-100: #F3F4F6;
  --jk-gray-200: #E5E7EB;
  --jk-gray-300: #D1D5DB;
  --jk-gray-400: #9CA3AF;
  --jk-gray-500: #6B7280;
  --jk-gray-600: #4B5563;
  --jk-gray-700: #374151;
  --jk-gray-800: #1F2937;
  --jk-gray-900: #111827;
  --jk-text: #111827;
  --jk-text-light: #6B7280;
  --jk-text-muted: #9CA3AF;

  --jk-border: #E5E7EB;
  --jk-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --jk-shadow-md: 0 2px 4px -2px rgba(0, 0, 0, 0.06), 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --jk-shadow-lg: 0 4px 6px -2px rgba(0, 0, 0, 0.05), 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --jk-shadow-xl: 0 8px 10px -6px rgba(0, 0, 0, 0.1), 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --jk-radius-sm: 8px;
  --jk-radius-md: 12px;
  --jk-radius-lg: 16px;
  --jk-radius-xl: 24px;
  --jk-radius-full: 999px;
  --jk-font: 'Inter', 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --jk-transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --jk-nav-height: 72px;
}

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

body.jackins-landing {
  font-family: var(--jk-font);
  color: var(--jk-text);
  background: var(--jk-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--jk-transition);
}

ul {
  list-style: none;
}

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

.jk-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
}

/* Gradient Divider (Moulder-style) */
.jk-divider {
  width: 100%;
  max-width: 1200px;
  height: 1px;
  margin: 0 auto;
  background: linear-gradient(90deg, rgba(229, 229, 229, 0) 0%, #E0E0E0 28%, #E0E0E0 72%, rgba(229, 229, 229, 0) 100%);
}

/* ═══════════════════════════════════════ */
/* Navigation - Clean White */
/* ═══════════════════════════════════════ */
.jk-nav-wrap {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  transition: all var(--jk-transition);
  height: var(--jk-nav-height);
}

.jk-nav-wrap::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0) 0%, var(--jk-gray-300) 9%, var(--jk-gray-300) 92%, rgba(255, 255, 255, 0) 100%);
  opacity: 1;
}

.jk-nav-wrap.scrolled {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--jk-shadow-sm);
}

.jk-nav {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.jk-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.jk-brand-bird {
  height: 28px;
  width: auto;
  flex-shrink: 0;
  object-fit: contain;
}

.jk-brand-text {
  display: none;
}

.jk-nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  margin-right: 16px;
}

.jk-nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--jk-gray-700);
  padding: 8px 16px;
  border-radius: var(--jk-radius-sm);
  transition: var(--jk-transition);
}

.jk-nav-links a:hover {
  color: var(--jk-red);
  background: rgba(229, 57, 53, 0.05);
}

.jk-nav-links a::after {
  display: none;
}

.jk-nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.jk-nav-login {
  position: relative;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--jk-gray-700);
  padding: 8px 16px;
  display: flex;
  align-items: center;
}

.jk-nav-login::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 14px;
  background-color: var(--jk-gray-300);
}

.jk-nav-login:hover {
  color: var(--jk-text);
}

/* scrolled state - same as default since nav is already white */
.jk-nav-wrap.scrolled .jk-brand-text,
.jk-nav-wrap.scrolled .jk-nav-links a,
.jk-nav-wrap.scrolled .jk-nav-login {
  color: var(--jk-gray-700);
}

.jk-nav-wrap.scrolled .jk-brand-bird {
  color: var(--jk-red);
}

.jk-mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--jk-text);
}

.jk-nav-wrap.scrolled .jk-mobile-toggle {
  color: var(--jk-text);
}

/* ═══════════════════════════════════════ */
/* Buttons - Clean, Minimal Shadow */
/* ═══════════════════════════════════════ */
.jk-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--jk-radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--jk-transition);
  white-space: nowrap;
}

.jk-btn-sm {
  padding: 8px 18px;
  font-size: 0.813rem;
  border-radius: var(--jk-radius-sm);
}

.jk-btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
}

.jk-btn-primary {
  background: var(--jk-red);
  color: var(--jk-white);
  box-shadow: 0 1px 0.5px 0.05px rgba(29, 41, 61, 0.02);
}

.jk-btn-primary:hover {
  background: var(--jk-red-dark);
}

/* ── Hero CTA Interaction ── */
.jk-hero-cta {
  position: relative;
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.jk-hero-cta::before {
  content: '';
  position: absolute; top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  transition: left 0.5s ease;
}
.jk-hero-cta svg {
  transition: transform 0.3s ease;
}
.jk-hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(229, 57, 53, 0.35);
}
.jk-hero-cta:hover::before {
  left: 100%;
}
.jk-hero-cta:hover svg {
  transform: translateX(4px);
}
.jk-hero-cta:active {
  transform: translateY(0) scale(0.97);
  box-shadow: 0 2px 8px rgba(229, 57, 53, 0.2);
}

.jk-btn-outline {
  background: var(--jk-white);
  color: var(--jk-gray-700);
  border: 1px solid var(--jk-gray-300);
  box-shadow: var(--jk-shadow-sm);
}

.jk-btn-outline:hover {
  background: var(--jk-gray-50);
  border-color: var(--jk-gray-400);
  color: var(--jk-text);
}

.jk-btn-white {
  background: var(--jk-white);
  color: var(--jk-red);
  font-weight: 700;
  box-shadow: var(--jk-shadow-sm);
}

.jk-btn-white:hover {
  background: var(--jk-gray-50);
}

.jk-btn-white-outline {
  background: transparent;
  color: var(--jk-white);
  border: 1.5px solid rgba(255, 255, 255, 0.6);
  font-weight: 600;
}

.jk-btn-white-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--jk-white);
}

/* ═══════════════════════════════════════ */
/* Hero Section - Clean White */
/* ═══════════════════════════════════════ */
.jk-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--jk-white);
  overflow: hidden;
  padding-top: var(--jk-nav-height);
}

.jk-hero::before {
  display: none;
}

.jk-hero-grid {
  display: none;
}

/* Particles - hidden */
.jk-hero-particles {
  display: none;
}

.particle {
  display: none;
}

.jk-hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
  width: 100%;
}

.jk-hero-copy {
  flex: 1;
  max-width: 520px;
}

.jk-hero-badge {
  display: inline-block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--jk-red);
  margin-bottom: 16px;
}

.jk-hero-badge-dot {
  display: none;
}

@keyframes jk-pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.4;
  }
}

.jk-hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.2;
  color: var(--jk-gray-900);
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.jk-hero-title .jk-highlight {
  color: var(--jk-red);
  -webkit-text-fill-color: var(--jk-red);
  background: none;
  animation: none;
}

.jk-hero-desc {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--jk-gray-500);
  margin-bottom: 36px;
}

.jk-hero-buttons {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Hero Visual - Clean Screen */
.jk-hero-visual {
  flex: 1;
  max-width: 580px;
  position: relative;
}

.jk-hero-screen {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--jk-gray-200);
  box-shadow: var(--jk-shadow-lg);
  background: var(--jk-white);
}

.jk-hero-screen-bar {
  display: flex;
  gap: 6px;
  padding: 10px 14px;
  background: var(--jk-gray-50);
  border-bottom: 1px solid var(--jk-gray-200);
}

.jk-hero-screen-bar .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.jk-hero-screen-bar .dot.red {
  background: #EF4444;
}

.jk-hero-screen-bar .dot.yellow {
  background: #F59E0B;
}

.jk-hero-screen-bar .dot.green {
  background: #22C55E;
}

.jk-hero-screen-body {
  padding: 12px;
  background: var(--jk-gray-900);
}

.jk-hero-grid-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.jk-hero-cam {
  aspect-ratio: 16/10;
  background: linear-gradient(145deg, #1a1a2e 0%, #16213e 100%);
  border-radius: 6px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: 10px;
  justify-content: space-between;
}

.jk-hero-cam::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255, 255, 255, 0.015) 2px, rgba(255, 255, 255, 0.015) 4px);
  pointer-events: none;
}

.jk-hero-cam-label {
  font-size: 0.625rem;
  color: rgba(255, 255, 255, 0.5);
  font-family: 'Inter', monospace;
  font-weight: 500;
  letter-spacing: 0.02em;
  position: relative;
  z-index: 1;
}

.jk-hero-cam-status {
  font-size: 0.563rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--jk-radius-full);
  position: relative;
  z-index: 1;
}

.jk-hero-cam-status.safe {
  background: rgba(16, 185, 129, 0.2);
  color: #34D399;
}

.jk-hero-cam-status.alert {
  background: rgba(245, 158, 11, 0.2);
  color: #FBBF24;
}

/* ═══════════════════════════════════════ */
/* Stats Section */
/* ═══════════════════════════════════════ */
.jk-stats {
  background: var(--jk-white);
  padding: 64px 0;
  position: relative;
}

.jk-stats::before,
.jk-stats::after {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1400px;
  height: 1px;
  background: linear-gradient(90deg, rgba(229, 229, 229, 0) 0%, #E0E0E0 28%, #E0E0E0 72%, rgba(229, 229, 229, 0) 100%);
}

.jk-stats::before {
  top: 0;
}

.jk-stats::after {
  bottom: 0;
}

.jk-stats-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px 80px;
  flex-wrap: wrap;
}

.jk-stat-item {
  text-align: center;
  min-width: 150px;
}

.jk-stat-value {
  font-size: 2.75rem;
  font-weight: 700;
  color: var(--jk-red);
  line-height: 1.2;
  letter-spacing: -0.03em;
  font-family: 'Inter', sans-serif;
}

.jk-stat-label {
  font-size: 0.875rem;
  color: var(--jk-gray-600);
  margin-top: 4px;
  font-weight: 500;
}

.jk-stat-divider {
  width: 1px;
  height: 48px;
  background: var(--jk-gray-200);
}

@media (max-width: 768px) {
  .jk-stats-grid {
    gap: 32px;
    flex-direction: column;
  }

  .jk-stat-divider {
    display: none;
  }
}

/* ═══════════════════════════════════════ */
/* Section Common */
/* ═══════════════════════════════════════ */
.jk-section {
  padding: 100px 0;
}

.jk-section-header {
  text-align: center;
  margin-bottom: 64px;
}

.jk-products .jk-section-header {
  text-align: left;
  margin-bottom: 24px;
}

.jk-section-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--jk-text);
  line-height: 1.35;
  letter-spacing: -0.03em;
}

.jk-section-title::after {
  display: none;
}

.jk-section-subtitle {
  font-size: 0.813rem;
  color: var(--jk-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
  font-weight: 600;
}

/* ═══════════════════════════════════════ */
/* About Section */
/* ═══════════════════════════════════════ */
.jk-about {
  background: var(--jk-white);
}

.jk-about-content {
  display: flex;
  flex-direction: column;
  gap: 48px;
  align-items: center;
  text-align: center;
}

.jk-about-text {
  flex: 1;
  max-width: 720px;
}

.jk-about-catchphrase {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--jk-text);
  margin-bottom: 16px;
  line-height: 1.5;
}

.jk-about-desc {
  font-size: 0.938rem;
  line-height: 1.9;
  color: var(--jk-text-light);
}

.jk-timeline {
  display: flex;
  gap: 0;
  position: relative;
  padding-left: 0;
  width: 100%;
  max-width: 720px;
  justify-content: space-between;
}

.jk-timeline::before {
  content: '';
  position: absolute;
  left: 12px;
  right: 12px;
  top: 11px;
  height: 2px;
  width: auto;
  background: linear-gradient(90deg, var(--jk-red), var(--jk-gray-200));
  border-radius: 1px;
}

.jk-timeline-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 0;
  position: relative;
  flex: 1;
}

.jk-timeline-item:not(:last-child) {
  margin-bottom: 0;
}

.jk-timeline-dot {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--jk-white);
  border: 3px solid var(--jk-red);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 4px var(--jk-white);
}

.jk-timeline-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
  align-items: center;
}

.jk-timeline-date {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--jk-text);
  white-space: nowrap;
  font-family: 'Inter', sans-serif;
}

.jk-timeline-label {
  font-size: 0.813rem;
  color: var(--jk-text-light);
}

/* ═══════════════════════════════════════ */
/* Content Board */
/* ═══════════════════════════════════════ */
.jk-content-board {
  background: var(--jk-bg);
}

.jk-board-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 24px;
}

.jk-board-header-text .jk-section-title {
  text-align: left;
}

.jk-board-subtitle {
  font-size: 0.875rem;
  color: var(--jk-text-muted);
  margin-top: 4px;
}

/* Common Carousel Wrap (Steps, Features) */
.jk-carousel-wrap { position: relative; overflow: visible; }

/* Slide Viewport & Track */
.jk-feat-viewport {
  overflow: hidden;
  padding: 12px;
  margin: -12px;
}
.jk-feat-track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  will-change: transform;
}
.jk-feat-track .jk-feature-card {
  flex-shrink: 0;
  box-sizing: border-box;
}
.jk-carousel-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--jk-gray-200);
  background: rgba(255,255,255,0.95); cursor: pointer; display: flex; align-items: center;
  justify-content: center; box-shadow: 0 2px 12px rgba(0,0,0,0.12);
  transition: all 0.25s ease; z-index: 5;
  opacity: 0; pointer-events: none;
}
.jk-carousel-wrap:hover .jk-carousel-arrow:not(.no-show) {
  opacity: 1; pointer-events: auto;
}
.jk-carousel-arrow:hover { background: #2C3E50; color: white; border-color: #2C3E50; }
.jk-carousel-arrow.prev { left: -22px; }
.jk-carousel-arrow.next { right: -22px; }
.jk-carousel-arrow.no-show { opacity: 0 !important; pointer-events: none !important; }

.jk-feat-counter {
  display: none;
}
.jk-carousel-arrow.hidden { opacity: 0; pointer-events: none; }

.jk-board-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--jk-gray-300);
  border-radius: var(--jk-radius-full);
  font-size: 0.813rem;
  font-weight: 500;
  color: var(--jk-text-light);
  white-space: nowrap;
}

.jk-board-link:hover {
  border-color: var(--jk-red);
  color: var(--jk-red);
}

.jk-category-tabs {
  display: flex;
  justify-content: flex-start;
  gap: 8px;
  margin-bottom: 28px;
  flex-wrap: nowrap;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 4px;
  /* Hide scrollbar */
  -ms-overflow-style: none;
  scrollbar-width: none;
}
.jk-category-tabs::-webkit-scrollbar {
  display: none;
}

.jk-tab {
  flex-shrink: 0;
  white-space: nowrap;
  padding: 7px 16px;
  border-radius: var(--jk-radius-full);
  font-size: 0.813rem;
  font-weight: 500;
  color: var(--jk-text-light);
  background: var(--jk-white);
  border: 1px solid var(--jk-gray-200);
  cursor: pointer;
  transition: all var(--jk-transition);
  font-family: var(--jk-font);
}

.jk-tab:hover {
  border-color: #2C3E50;
  color: #2C3E50;
}

.jk-tab.active {
  background: #2C3E50;
  border-color: #2C3E50;
  color: var(--jk-white);
}

/* Cards Container for Grid */
.jk-cards-container {
  position: relative;
  transition: max-height 0.5s ease;
}

.jk-cards-container.collapsed {
  max-height: 480px; /* Adjust based on card height to show 1 row */
  overflow: hidden;
}

.jk-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.jk-cards-gradient {
  display: none;
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: linear-gradient(to bottom, #fafafa00 0%, #fafafa 80%, #fafafa 100%);
  z-index: 10;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 20px;
}

.jk-cards-container.collapsed .jk-cards-gradient {
  display: flex;
}

.jk-btn-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 32px;
  font-size: 1rem;
  font-weight: 500;
  border-radius: 30px;
  background-color: #ffffff;
  border: 1px solid var(--jk-gray-300, #d1d5db);
  color: #2C3E50;
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  cursor: pointer;
  transition: all var(--jk-transition);
}

.jk-btn-more:hover {
  background-color: #f8fafc;
  border-color: #2C3E50;
}

.jk-cards-arrow.hidden {
  opacity: 0;
  pointer-events: none;
}

.jk-card {
  background: var(--jk-white);
  border-radius: var(--jk-radius-lg);
  overflow: hidden;
  transition: all var(--jk-transition);
  border: 1px solid var(--jk-gray-200);
  box-shadow: var(--jk-shadow-sm);
}

.jk-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--jk-shadow-xl);
  border-color: transparent;
}

.jk-card-image {
  width: 100%;
  aspect-ratio: 16/9;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #F3F4F6 0%, #E5E7EB 50%, #F3F4F6 100%);
}

.jk-card-image.blue {
  background: linear-gradient(135deg, #DBEAFE 0%, #93C5FD 50%, #DBEAFE 100%);
}

.jk-card-image.green {
  background: linear-gradient(135deg, #D1FAE5 0%, #6EE7B7 50%, #D1FAE5 100%);
}

.jk-card-image-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  z-index: 1;
}

.jk-card-image-content svg {
  stroke: var(--jk-gray-400) !important;
}

.jk-card-image-label {
  font-size: 0.688rem;
  color: var(--jk-gray-500);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.card-play {
  position: absolute;
  bottom: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  background: var(--jk-red);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  transition: all var(--jk-transition);
  box-shadow: 0 2px 8px var(--jk-red-glow);
}

.jk-card:hover .card-play {
  transform: scale(1.08);
}

.jk-card-cat-badge {
  position: absolute;
  bottom: 10px;
  left: 10px;
  z-index: 3;
  padding: 4px 12px;
  font-size: 0.6875rem;
  font-weight: 600;
  border-radius: 999px;
  background: rgba(44, 62, 80, 0.85);
  color: white;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
  letter-spacing: 0.02em;
}

.jk-card-body {
  padding: 20px;
}

.jk-card-title {
  font-size: 0.938rem;
  font-weight: 700;
  color: var(--jk-text);
  margin-bottom: 6px;
  line-height: 1.5;
}

.jk-card-desc {
  display: none;
}

.jk-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--jk-border);
}

.jk-card-date {
  font-size: 0.75rem;
  color: var(--jk-text-muted);
  font-family: 'Inter', sans-serif;
}

.jk-card-more {
  font-size: 0.75rem;
  color: var(--jk-red);
  font-weight: 600;
}

.jk-card-more:hover {
  color: var(--jk-red-dark);
}

/* ═══════════════════════════════════════ */
/* How It Works */
/* ═══════════════════════════════════════ */
.jk-howitworks {
  background: var(--jk-white);
}

.jk-steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.jk-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  flex: 0 0 280px;
}

.jk-step-icon-wrap {
  position: relative;
  width: 80px;
  height: 80px;
  margin-bottom: 28px;
}

.jk-step-number {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--jk-red);
  font-family: 'Inter', sans-serif;
  z-index: 1;
  background: var(--jk-white);
  border-radius: 50%;
  border: 2px solid var(--jk-gray-200);
  transition: all var(--jk-transition);
  box-shadow: var(--jk-shadow-sm);
}

.jk-step-ring {
  position: absolute;
  inset: -6px;
  stroke: var(--jk-red);
  opacity: 0.15;
  animation: jk-rotate 30s linear infinite;
}

@keyframes jk-rotate {
  0% {
    transform: rotate(0);
  }

  100% {
    transform: rotate(360deg);
  }
}

.jk-step:hover .jk-step-number {
  background: var(--jk-red);
  color: var(--jk-white);
  border-color: var(--jk-red);
  box-shadow: 0 4px 12px var(--jk-red-glow);
}

.jk-step-title {
  font-size: 1.063rem;
  font-weight: 700;
  color: var(--jk-text);
  margin-bottom: 8px;
}

.jk-step-desc {
  font-size: 0.813rem;
  color: var(--jk-text-light);
  line-height: 1.6;
}

.jk-step-arrow {
  flex: 0 0 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 42px;
  color: var(--jk-gray-300);
}

/* ═══════════════════════════════════════ */
/* Features */
/* ═══════════════════════════════════════ */
.jk-features {
  background: var(--jk-bg);
}

.jk-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.jk-feature-card {
  background: var(--jk-white);
  border-radius: var(--jk-radius-lg);
  padding: 36px;
  border: 1px solid var(--jk-gray-200);
  transition: all 0.25s ease;
}

.jk-feature-card:hover,
.jk-feature-card.active {
  border-color: var(--jk-red);
  transform: translateY(-4px);
  box-shadow: var(--jk-shadow-lg);
}

.jk-feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--jk-radius-md);
  background: var(--jk-red-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--jk-red);
  transition: all var(--jk-transition);
}

.jk-feature-icon.blue {
  background: var(--jk-blue-light);
  color: var(--jk-blue);
}

.jk-feature-icon.purple {
  background: var(--jk-purple-light);
  color: var(--jk-purple);
}



.jk-feature-name {
  font-size: 1.063rem;
  font-weight: 700;
  color: var(--jk-text);
  margin-bottom: 8px;
}

.jk-feature-text {
  font-size: 0.875rem;
  color: var(--jk-text-light);
  line-height: 1.7;
}

/* ═══════════════════════════════════════ */
/* Product Catalog */
/* ═══════════════════════════════════════ */
.jk-products {
  background: var(--jk-white);
}

.jk-products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.jk-product-card {
  background: var(--jk-white);
  border-radius: var(--jk-radius-lg);
  border: 1px solid var(--jk-gray-200);
  overflow: hidden;
  transition: all var(--jk-transition);
  box-shadow: var(--jk-shadow-sm);
}

.jk-product-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--jk-shadow-xl);
  border-color: transparent;
}

.jk-product-image {
  margin: 12px;
  aspect-ratio: 2/1;
  background: linear-gradient(135deg, var(--jk-gray-50) 0%, var(--jk-gray-100) 100%);
  border-radius: var(--jk-radius-sm);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.jk-product-icon-wrap {
  color: var(--jk-gray-400);
  transition: all var(--jk-transition);
}

.jk-product-card:hover .jk-product-icon-wrap {
  color: var(--jk-red);
  transform: scale(1.05);
}

.jk-product-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  padding: 3px 10px;
  background: rgba(229, 57, 53, 0.08);
  border: 1px solid rgba(229, 57, 53, 0.15);
  border-radius: var(--jk-radius-full);
  font-size: 0.688rem;
  font-weight: 600;
  color: var(--jk-red);
  z-index: 1;
}

.jk-product-badge.safety {
  background: rgba(16, 185, 129, 0.08);
  border-color: rgba(16, 185, 129, 0.15);
  color: var(--jk-green);
}

.jk-product-badge.equip {
  background: rgba(59, 130, 246, 0.08);
  border-color: rgba(59, 130, 246, 0.15);
  color: var(--jk-blue);
}

.jk-product-badge.logistics {
  background: rgba(124, 58, 237, 0.08);
  border-color: rgba(124, 58, 237, 0.15);
  color: var(--jk-purple);
}

.jk-product-body {
  padding: 4px 16px 0;
}

.jk-product-name {
  font-size: 0.938rem;
  font-weight: 700;
  color: var(--jk-text);
  margin-bottom: 4px;
}

.jk-product-desc {
  font-size: 0.813rem;
  color: var(--jk-text-light);
}

.jk-product-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 12px 16px;
}

.jk-product-footer::before {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--jk-border);
  margin-right: 16px;
}

.jk-product-link {
  font-size: 0.75rem;
  color: var(--jk-red);
  font-weight: 600;
  white-space: nowrap;
}

.jk-product-link:hover {
  color: var(--jk-red-dark);
}

/* ═══════════════════════════════════════ */
/* CTA Section */
/* ═══════════════════════════════════════ */
.jk-cta {
  background: linear-gradient(135deg, #E53935 0%, #C62828 50%, #B71C1C 100%);
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.jk-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
}

.jk-cta::after {
  display: none;
}

.jk-cta-content {
  position: relative;
  z-index: 1;
}

.jk-cta-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--jk-white);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.jk-cta-subtitle {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 36px;
}

.jk-cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ═══════════════════════════════════════ */
/* Footer */
/* ═══════════════════════════════════════ */
.jk-footer {
  background: var(--jk-bg);
  color: var(--jk-gray-600);
  padding: 64px 0 32px;
  border-top: 1px solid var(--jk-gray-200);
}

.jk-footer-content {
  display: flex;
  justify-content: space-between;
  gap: 80px;
  margin-bottom: 48px;
}

.jk-footer-brand {
  max-width: 300px;
}

.jk-footer-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.jk-footer-logo span {
  display: none;
}

.jk-footer-bird {
  height: 20px;
  width: auto;
  flex-shrink: 0;
  object-fit: contain;
}

.jk-footer-desc {
  font-size: 0.813rem;
  line-height: 1.8;
  color: var(--jk-gray-500);
}

.jk-footer-links {
  display: flex;
  gap: 64px;
}

.jk-footer-col h4 {
  font-size: 0.813rem;
  font-weight: 700;
  color: var(--jk-gray-800);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.jk-footer-col a {
  display: block;
  font-size: 0.813rem;
  color: var(--jk-gray-500);
  padding: 5px 0;
}

.jk-footer-col a:hover {
  color: var(--jk-red);
}

.jk-footer-bottom {
  padding-top: 20px;
  border-top: 1px solid var(--jk-gray-200);
}

.jk-footer-copyright {
  font-size: 0.75rem;
  color: var(--jk-gray-400);
  font-family: 'Inter', sans-serif;
}

/* ═══════════════════════════════════════ */
/* Reveal Animation */
/* ═══════════════════════════════════════ */
.jk-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.jk-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ═══════════════════════════════════════ */
/* Mobile Menu */
/* ═══════════════════════════════════════ */
.jk-mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.jk-mobile-menu.active {
  opacity: 1;
  visibility: visible;
}

.jk-mobile-menu a {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--jk-text);
  padding: 12px 24px;
}

.jk-mobile-menu a:hover {
  color: var(--jk-red);
}

/* ═══════════════════════════════════════ */
/* Responsive */
/* ═══════════════════════════════════════ */
@media (max-width: 1024px) {
  .jk-cards-grid,
  .jk-features-grid,
  .jk-products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .jk-hero-content {
    flex-direction: column;
    gap: 40px;
    text-align: center;
    padding: 60px 24px;
  }

  .jk-hero-copy {
    max-width: 100%;
  }

  .jk-hero-buttons {
    justify-content: center;
  }

  .jk-hero-visual {
    max-width: 100%;
  }

  .jk-float-card {
    display: none;
  }

  .jk-about-content {
    gap: 32px;
  }

  .jk-timeline {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding-left: 24px;
  }

  .jk-timeline::before {
    left: 11px;
    top: 12px;
    bottom: 12px;
    right: auto;
    width: 2px;
    height: auto;
  }

  .jk-timeline-item {
    flex-direction: row;
    align-items: center;
    gap: 16px;
    flex: auto;
  }

  .jk-timeline-item:not(:last-child) {
    margin-bottom: 20px;
  }

  .jk-timeline-content {
    flex-direction: row;
    gap: 8px;
    align-items: center;
  }

  .jk-steps {
    flex-direction: column;
    align-items: center;
    gap: 16px;
  }

  .jk-step-arrow {
    transform: rotate(90deg);
    margin: 0;
  }

  .jk-stats-grid {
    flex-wrap: wrap;
    gap: 40px;
  }

  .jk-footer-content {
    flex-direction: column;
    gap: 40px;
  }
}

@media (max-width: 768px) {

  .jk-nav-links,
  .jk-nav-right {
    display: none;
  }

  .jk-mobile-toggle {
    display: block;
  }

  .jk-brand-bird {
    height: 22px;
  }

  .jk-brand {
    gap: 6px;
  }

  .jk-hero-title {
    font-size: 2rem;
  }

  .jk-hero-desc {
    font-size: 0.875rem;
  }

  .jk-stat-value {
    font-size: 1.75rem;
  }

  .jk-stat-divider {
    display: none;
  }

  .jk-stats-grid {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 24px;
    justify-content: space-around;
  }

  .jk-section {
    padding: 64px 0;
  }

  .jk-section-title {
    font-size: 1.5rem;
  }

  .jk-cards-grid,
  .jk-features-grid,
  .jk-products-grid {
    grid-template-columns: 1fr;
  }


  .jk-cards-container.collapsed {
    max-height: 850px; /* Show approx 2 cards on mobile before fade */
  }

  .jk-carousel-wrap {
    padding-bottom: 60px; /* Space for counter and arrows */
  }

  .jk-carousel-arrow {
    opacity: 1 !important;
    pointer-events: auto !important;
    top: auto;
    bottom: 0;
    transform: none;
    width: 36px;
    height: 36px;
  }

  .jk-carousel-arrow.prev {
    left: 50%;
    margin-left: -70px;
  }

  .jk-carousel-arrow.next {
    right: 50%;
    margin-right: -70px;
  }

  .jk-feat-counter {
    display: flex;
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 36px;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--jk-text-light);
  }

  .jk-cta-title {
    font-size: 1.5rem;
  }

  .jk-cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .jk-footer-links {
    flex-direction: column;
    gap: 24px;
  }

  .jk-board-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .jk-dash-stat-row {
    grid-template-columns: 1fr;
  }

  .jk-dash-chart-area {
    grid-template-columns: 1fr;
  }
}

/* ═══════════════════════════════════════ */
/* Login Modal                             */
/* ═══════════════════════════════════════ */
.jk-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(17, 24, 39, 0.5);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  padding: 24px;
}

.jk-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.jk-modal {
  background: var(--jk-white);
  border-radius: var(--jk-radius-xl);
  box-shadow: 0 32px 64px -12px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(0, 0, 0, 0.04);
  width: 100%;
  max-width: 420px;
  padding: 40px 36px 32px;
  position: relative;
  transform: translateY(24px) scale(0.96);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.jk-modal-overlay.active .jk-modal {
  transform: translateY(0) scale(1);
}

.jk-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: var(--jk-gray-100);
  color: var(--jk-gray-500);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--jk-transition);
}

.jk-modal-close:hover {
  background: var(--jk-gray-200);
  color: var(--jk-text);
}

.jk-modal-header {
  text-align: center;
  margin-bottom: 32px;
}

.jk-modal-logo {
  height: 40px;
  width: auto;
  margin: 0 auto 16px;
}

.jk-modal-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--jk-text);
  margin-bottom: 6px;
}

.jk-modal-subtitle {
  font-size: 0.875rem;
  color: var(--jk-text-light);
}

.jk-form-group {
  margin-bottom: 20px;
}

.jk-form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--jk-text);
  margin-bottom: 6px;
}

.jk-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
  border: 1.5px solid var(--jk-border);
  border-radius: var(--jk-radius-sm);
  background: var(--jk-gray-50);
  transition: var(--jk-transition);
}

.jk-input-wrap:focus-within {
  border-color: var(--jk-red);
  box-shadow: 0 0 0 3px rgba(229, 57, 53, 0.1);
  background: var(--jk-white);
}

.jk-input-wrap.error {
  border-color: #EF4444;
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.jk-input-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--jk-gray-400);
  pointer-events: none;
  flex-shrink: 0;
}

.jk-input-wrap:focus-within .jk-input-icon {
  color: var(--jk-red);
}

.jk-form-input {
  width: 100%;
  padding: 12px 14px 12px 42px;
  border: none;
  background: transparent;
  font-family: var(--jk-font);
  font-size: 0.9375rem;
  color: var(--jk-text);
  outline: none;
}

.jk-form-input::placeholder {
  color: var(--jk-text-muted);
}

.jk-password-toggle {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  border: none;
  background: none;
  cursor: pointer;
  color: var(--jk-gray-400);
  padding: 4px;
  display: flex;
  align-items: center;
  transition: var(--jk-transition);
}

.jk-password-toggle:hover {
  color: var(--jk-text);
}

.jk-form-error {
  display: block;
  font-size: 0.75rem;
  color: #EF4444;
  margin-top: 4px;
  min-height: 18px;
  transition: var(--jk-transition);
}

.jk-form-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.jk-checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  color: var(--jk-text-light);
  cursor: pointer;
  user-select: none;
}

.jk-checkbox {
  display: none;
}

.jk-checkbox-custom {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  border: 1.5px solid var(--jk-gray-300);
  background: var(--jk-white);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--jk-transition);
  flex-shrink: 0;
}

.jk-checkbox:checked+.jk-checkbox-custom {
  background: var(--jk-red);
  border-color: var(--jk-red);
}

.jk-checkbox:checked+.jk-checkbox-custom::after {
  content: '';
  display: block;
  width: 5px;
  height: 9px;
  border: solid var(--jk-white);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-top: -1px;
}

.jk-forgot-link {
  font-size: 0.8125rem;
  color: var(--jk-red);
  font-weight: 500;
}

.jk-forgot-link:hover {
  text-decoration: underline;
}

.jk-btn-full {
  width: 100%;
  justify-content: center;
}

.jk-btn-spinner svg {
  animation: jk-spin 0.8s linear infinite;
}

@keyframes jk-spin {
  to {
    transform: rotate(360deg);
  }
}

.jk-form-message {
  border-radius: var(--jk-radius-sm);
  padding: 0;
  margin-bottom: 0;
  font-size: 0.8125rem;
  font-weight: 500;
  text-align: center;
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition: all 0.3s ease;
}

.jk-form-message.show {
  padding: 12px 16px;
  margin-bottom: 20px;
  max-height: 80px;
  opacity: 1;
}

.jk-form-message.error {
  background: #FEF2F2;
  color: #DC2626;
  border: 1px solid #FECACA;
}

.jk-form-message.success {
  background: #ECFDF5;
  color: #059669;
  border: 1px solid #A7F3D0;
}

.jk-modal-footer {
  text-align: center;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--jk-border);
}

.jk-modal-footer p {
  font-size: 0.8125rem;
  color: var(--jk-text-light);
}

.jk-signup-link {
  color: var(--jk-red);
  font-weight: 600;
}

.jk-signup-link:hover {
  text-decoration: underline;
}

@media (max-width: 480px) {
  .jk-modal {
    padding: 32px 24px 24px;
    border-radius: var(--jk-radius-lg);
  }

  .jk-modal-title {
    font-size: 1.25rem;
  }
}

/* ── Naver Blog Tag ── */
.jk-nav-blog {
  display: inline-flex !important;
  align-items: center !important;
  gap: 5px !important;
  border: 1px solid var(--jk-gray-300, #d1d5db) !important;
  border-radius: 20px !important;
  padding: 5px 14px 5px 10px !important;
  font-size: 0.8125rem !important;
  font-weight: 500 !important;
  color: var(--jk-gray-700) !important;
  background: transparent !important;
  transition: all 0.2s !important;
  line-height: 1 !important;
}
.jk-nav-blog:hover {
  border-color: #03C75A !important;
  color: #03C75A !important;
  background: rgba(3, 199, 90, 0.05) !important;
}
.jk-naver-icon {
  display: flex; align-items: center; justify-content: center;
  width: 16px; height: 16px; border-radius: 50%;
  background: #03C75A; color: #fff;
  font-size: 0.5625rem; font-weight: 800;
  line-height: 1; flex-shrink: 0;
}

/* ── Consultation Modal ── */
.jk-consult-overlay {
  position: fixed; inset: 0; z-index: 10000;
  background: rgba(0,0,0,0.5); backdrop-filter: blur(4px);
  display: none; align-items: center; justify-content: center;
  padding: 20px;
}
.jk-consult-overlay.active { display: flex; }
.jk-consult-modal {
  background: var(--jk-white); border-radius: 16px;
  width: 100%; max-width: 520px; padding: 36px 32px 28px;
  position: relative; box-shadow: 0 20px 60px rgba(0,0,0,0.2);
  animation: jkConsultIn 0.3s ease;
  max-height: 90vh; overflow-y: auto;
}
@keyframes jkConsultIn {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}
.jk-consult-close {
  position: absolute; top: 14px; right: 14px;
  width: 32px; height: 32px; border-radius: 50%;
  border: none; background: var(--jk-gray-100);
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  color: var(--jk-text-muted); transition: all 0.2s;
}
.jk-consult-close:hover { background: var(--jk-gray-200); color: var(--jk-text); }
.jk-consult-header { margin-bottom: 24px; }
.jk-consult-title {
  font-size: 1.25rem; font-weight: 700; color: var(--jk-text); margin-bottom: 6px;
}
.jk-consult-desc {
  font-size: 0.8125rem; color: var(--jk-text-muted); line-height: 1.5;
}
.jk-consult-form { display: flex; flex-direction: column; gap: 14px; }
.jk-consult-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.jk-consult-field { display: flex; flex-direction: column; gap: 5px; }
.jk-consult-label {
  font-size: 0.8125rem; font-weight: 600; color: var(--jk-text);
}
.jk-required { color: var(--jk-red); }
.jk-consult-input, .jk-consult-textarea {
  width: 100%; padding: 10px 14px; border: 1px solid var(--jk-border);
  border-radius: 8px; font-size: 0.875rem; background: var(--jk-gray-50, #FAFAFA);
  transition: border-color 0.2s; outline: none; font-family: inherit;
  box-sizing: border-box;
}
.jk-consult-input:focus, .jk-consult-textarea:focus {
  border-color: var(--jk-red); background: #fff;
}
.jk-consult-textarea { resize: vertical; min-height: 80px; }
.jk-consult-submit {
  width: 100%; padding: 12px; margin-top: 6px; font-size: 0.9375rem; font-weight: 600;
}

@media (max-width: 480px) {
  .jk-consult-modal { padding: 28px 20px 22px; }
  .jk-consult-row { grid-template-columns: 1fr; }
}

/* ── Scroll to Top ── */
.jk-top-btn {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 42px; height: 42px;
  border-radius: 12px; border: 1px solid rgba(0,0,0,0.06);
  background: rgba(255,255,255,0.75);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
  cursor: pointer; z-index: 999;
  display: flex; align-items: center; justify-content: center;
  color: var(--jk-gray-500, #6b7280);
  opacity: 0; visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.35s ease, visibility 0.35s ease, transform 0.35s ease,
              background 0.2s ease, box-shadow 0.2s ease, color 0.2s ease;
}
.jk-top-btn.visible {
  opacity: 1; visibility: visible;
  transform: translateY(0);
}
.jk-top-btn:hover {
  background: rgba(255,255,255,0.95);
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
  color: var(--jk-red);
  transform: translateY(-2px);
}
.jk-top-btn:active {
  transform: translateY(0) scale(0.92);
}
@media (max-width: 768px) {
  .jk-top-btn { bottom: 20px; right: 16px; width: 38px; height: 38px; }
}