@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;700&display=swap');
@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css");

:root {
  /* Colors - Light White + Purple-Cyan Pastel Theme */
  --bg-canvas: #FFFFFF;
  --bg-porcelain: #F8F7FF;
  --text-ink: #1A1A2E;
  --text-muted: #6B7280;
  --primary: #7C3AED;
  --primary-hover: #6D28D9;
  --primary-light: #A78BFA;
  --primary-glow: rgba(124, 58, 237, 0.15);
  --primary-vivid: #8509EA;
  --secondary: #06B6D4;
  --border-brush: rgba(124, 58, 237, 0.12);
  --border-subtle: rgba(0, 0, 0, 0.06);

  /* Typography Fonts */
  --font-display: 'Outfit', 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
  --font-body: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Pretendard', monospace;

  /* Shapes & Roundness */
  --round-lg: 24px;
  /* Bangwon (circular-square) corner radius */
  --round-md: 12px;
  --round-sm: 8px;

  /* Layout Spacing */
  --gutter: 24px;
  --stack-gap: 16px;
  --section-gap-lg: 140px;
  --section-gap-sm: 80px;

  /* Shadows */
  --shadow-ambient: 0 10px 40px -15px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 20px 50px -12px rgba(124, 58, 237, 0.12);

  /* Physics Transitions */
  --spring-transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  --smooth-transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: #ffffff;
  overflow-x: hidden;
  width: 100%;
}

body {
  position: relative;
  background-color: #ffffff;
  color: var(--text-ink);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Premium Custom Startup Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #F8F7FF;
}

::-webkit-scrollbar-thumb {
  background: rgba(124, 58, 237, 0.2);
  border-radius: 9999px;
  border: 2px solid #F8F7FF;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
  box-shadow: 0 0 10px var(--primary);
}

/* Firefox 전용 호환성 */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(124, 58, 237, 0.2) #F8F7FF;
}

/* Connecting Node Network Canvas Background */
#network-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  display: block;
  overflow: hidden;
}

/* Elegant Technical Grid Background with Radial Mask Overlay */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.02) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(circle at 50% 50%, black, transparent 75%);
  -webkit-mask-image: radial-gradient(circle at 50% 50%, black, transparent 75%);
  pointer-events: none;
  z-index: -1;
}

/* Global Container */
.container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 80px;
}

/* Headings & Typography */
h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.04em;
  /* Premium compressed letter spacing */
  line-height: 1.25;
  word-break: keep-all;
  /* Prevent awkward word-splitting in Korean display text */
}

.section-title {
  font-family: Pretendard, -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  font-weight: 500;
  font-style: normal;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: rgba(0, 0, 0, 1);
}

.section-intro {
  margin-bottom: 60px;
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
  text-align: left;
}

.section-intro .section-title {
  font-size: 2.2rem;
  color: var(--text-ink);
  margin-bottom: 12px;
  line-height: 1.3;
}

.teaser-title {
  margin-bottom: 48px;
  font-size: 2.2rem;
  font-weight: 500;
  color: var(--text-ink);
  text-align: center;
}

p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.7;
  letter-spacing: -0.02em;
  /* Balanced paragraph letter spacing */
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 24px;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  justify-content: center;
  pointer-events: none;
}

.header.scrolled {
  top: 12px;
  padding: 0;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 54px;
  background-color: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 9999px;
  padding: 10px 25px;
  box-shadow: 0 10px 30px rgba(124, 58, 237, 0.05), 0 1px 3px rgba(0, 0, 0, 0.02);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: auto;
  width: auto;
  max-width: 95%;
  gap: 28px;
}

.header.scrolled .header-container {
  background-color: rgba(255, 255, 255, 0.85);
  height: 48px;
  box-shadow: 0 12px 35px rgba(124, 58, 237, 0.08), 0 2px 6px rgba(0, 0, 0, 0.03);
}

.logo {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-ink);
  text-decoration: none;
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-dot {
  width: 8px;
  height: 8px;
  background-color: var(--primary);
  border-radius: 50%;
  display: inline-block;
}

.logo-icon {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  object-fit: cover;
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.8);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
}

.header .logo-icon {
  width: auto;
  height: 22px;
  border-radius: 0;
  box-shadow: none;
  border: none;
}

.logo:hover .logo-icon {
  transform: scale(1.06);
}

.logo-img {
  height: 120px;
  /* Compensate for large empty padding in AI generated logo */
  width: auto;
  object-fit: contain;
  display: block;
  margin: -37px -25px -37px -15px;
  /* Prevent overlap with logo-icon */
  flex-shrink: 0;
}

.footer-brand .logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  box-shadow: 0 6px 16px rgba(124, 58, 237, 0.3);
}

.footer-brand .logo-img {
  height: 160px;
  margin: -50px -35px -50px -20px;
  /* Prevent overlap with footer logo-icon */
}

.logo-dot {
  box-shadow: 0 0 10px var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-ink);
  opacity: 0.8;
  text-decoration: none;
  transition: var(--smooth-transition);
  position: relative;
}

.nav-link:hover {
  color: var(--primary);
  opacity: 1;
}

.nav-link.active {
  color: var(--primary) !important;
  opacity: 1 !important;
}

/* Section Header Navigation (Static Header inside each Section) */
.section-header-nav {
  display: none;
  justify-content: center;
  align-items: center;
  gap: 40px;
  width: 100%;
  max-width: 860px;
  margin: 0 auto 50px;
  padding: 30px 0 10px;
}

.section-header-nav .logo {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-ink);
  text-decoration: none;
  display: flex;
  align-items: center;
}

.section-header-nav .logo-icon {
  width: auto;
  height: 22px;
  border-radius: 0;
  box-shadow: none;
  border: none;
}

.section-header-nav .nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.section-header-nav .nav-link {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-ink);
  opacity: 0.8;
  text-decoration: none;
  transition: var(--smooth-transition);
}

.section-header-nav .nav-link:hover {
  color: var(--primary);
  opacity: 1;
}

.section-header-nav .nav-link.active {
  color: #8509EA !important;
  opacity: 1 !important;
}

.section-header-nav .nav-link::after {
  display: none !important;
}

/* Mobile responsive adjustments */
@media (max-width: 768px) {
  .section-header-nav {
    flex-direction: column;
    gap: 16px;
    padding: 20px 0;
    margin-bottom: 30px;
  }
}

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  z-index: 1001;
}

.hamburger-line {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--text-ink);
  margin: 4px 0;
  transition: var(--smooth-transition);
}

/* Dynamic Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--round-md);
  text-decoration: none;
  cursor: pointer;
  transition: var(--spring-transition);
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, #7C3AED 0%, #06B6D4 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.25);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -50%;
  width: 200%;
  height: 100%;
  background: linear-gradient(90deg,
      transparent,
      rgba(255, 255, 255, 0.3),
      transparent);
  transform: skewX(-15deg);
  transition: 0.75s ease;
  pointer-events: none;
}

.btn-primary:hover::before {
  left: 120%;
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.02);
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.35);
  color: #FFFFFF;
}

.btn-primary:active {
  transform: translateY(1px);
}

.btn-secondary {
  background-color: rgba(0, 0, 0, 0.03);
  color: var(--text-ink);
  border-color: rgba(0, 0, 0, 0.12);
}

.btn-secondary:hover {
  background-color: rgba(0, 0, 0, 0.06);
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
}

/* Sections Base Styling */
.section {
  padding: var(--section-gap-lg) 0;
  position: relative;
  scroll-margin-top: 110px;
}

/* Hero Section */
.hero {
  padding-top: 140px;
  /* 여백 증가로 헤더 하단 답답함 해소 */
  padding-bottom: 160px;
  /* 하단 여백 추가로 롤러와의 간격 확보 */
  background:
    radial-gradient(1107px 877px at 100% 0%, rgba(219, 250, 255, 1) 0%, rgba(219, 250, 255, 0) 100%),
    linear-gradient(167.46deg, rgba(107, 9, 234, 0.3) -7.93%, rgba(255, 255, 255, 0.3) 81.4%);
}

@media (max-width: 1200px) {
  .hero {
    background:
      radial-gradient(800px 650px at 100% 0%, rgba(219, 250, 255, 1) 0%, rgba(219, 250, 255, 0) 100%),
      linear-gradient(167.46deg, rgba(107, 9, 234, 0.3) -7.93%, rgba(255, 255, 255, 0.3) 81.4%);
  }
}

@media (max-width: 768px) {
  .hero {
    background:
      radial-gradient(500px 400px at 100% 0%, rgba(219, 250, 255, 1) 0%, rgba(219, 250, 255, 0) 100%),
      linear-gradient(167.46deg, rgba(107, 9, 234, 0.3) -7.93%, rgba(255, 255, 255, 0.3) 81.4%);
  }

  .hero-category {
    font-size: clamp(1.125rem, 2.5vw, 1.375rem);
    line-height: 1.4;
    margin-bottom: 12px;
  }
}

@media (max-width: 480px) {
  .hero {
    background:
      radial-gradient(350px 280px at 100% 0%, rgba(219, 250, 255, 1) 0%, rgba(219, 250, 255, 0) 100%),
      linear-gradient(167.46deg, rgba(107, 9, 234, 0.3) -7.93%, rgba(255, 255, 255, 0.3) 81.4%);
  }

  .hero-category {
    font-size: 1.125rem;
    line-height: 1.3;
    margin-bottom: 8px;
  }
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
  /* 메인 콘텐츠와 하단 롤러 간격 80px 추가 */
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.badge-mono {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  background-color: rgba(124, 58, 237, 0.06);
  border: 1px solid rgba(124, 58, 237, 0.15);
  padding: 6px 12px;
  border-radius: 9999px;
  margin-bottom: 24px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-category {
  font-family: Pretendard, -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  font-weight: 500;
  font-style: normal;
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  line-height: 1.5;
  letter-spacing: -0.02em;
  color: rgba(51, 51, 51, 1);
  margin-bottom: 16px;
  text-align: left;
}

.hero-title {
  font-size: clamp(2.0rem, 3.8vw, 3.8rem);
  color: var(--text-ink);
  margin-bottom: 28px;
  line-height: 1.25;
  letter-spacing: -0.03em;
  text-align: left;
  width: 100%;
  font-weight: 800;
}

.hero-title .text-primary {
  color: var(--primary);
}

.hero-title .underline-text {
  position: relative;
  display: inline-block;
}

.hero-title .underline-text::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0px;
  width: 100%;
  height: 3px;
  background-color: var(--primary);
  border-radius: 2px;
}

.hero-desc {
  font-family: Pretendard, -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  font-weight: 500;
  font-style: normal;
  font-size: clamp(0.95rem, 1.4vw, 1.15rem);
  line-height: 24px;
  letter-spacing: -0.02em;
  color: rgba(51, 51, 51, 1);
  max-width: 600px;
  margin-top: 24px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 16px;
}

.hero-text-link {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 700;
  background: linear-gradient(90deg, var(--primary-vivid) 0%, #1CD2EE 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-decoration: none;
  gap: 6px;
  transition: all 0.3s ease;
}

.hero-text-link:hover {
  transform: translateX(4px);
  opacity: 0.8;
}

/* Hero Mockup Image Container — 2D Float + Ambient Glow (Defined here so media queries can override it) */
.hero-mockup-container {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  padding-right: 40px;
}

.hero-mockup-img {
  max-height: clamp(320px, 33vw, 520px);
  width: auto;
  border-radius: 40px;
  filter: drop-shadow(0 20px 40px rgba(124, 58, 237, 0.10)) drop-shadow(0 4px 10px rgba(0, 0, 0, 0.04));
}

.hero-mockup-img:first-of-type {
  transform: rotate(-8deg);
  animation: float-mockup-left 6s ease-in-out infinite;
  z-index: 2;
}

.hero-mockup-img:last-of-type {
  transform: rotate(5deg);
  animation: float-mockup-right 6s ease-in-out infinite;
  animation-delay: -3s;
  z-index: 1;
  margin-left: -60px;
  margin-top: 115px;
}

/* Ambient light flare background glow behind mockups */
.mockup-glow-back {
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(28, 210, 238, 0.35) 0%, rgba(133, 9, 234, 0.20) 45%, rgba(255, 255, 255, 0) 70%);
  filter: blur(80px);
  z-index: 0;
  pointer-events: none;
  mix-blend-mode: screen;
  animation: breathing-glow 8s ease-in-out infinite;
  opacity: 0.7;
}

/* Dynamic Spotlight Light Cards */
.spotlight-card {
  position: relative;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--round-lg);
  border: 1px solid rgba(0, 0, 0, 0.06);
  overflow: hidden;
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.5s ease;
  z-index: 2;
}

.spotlight-card::before {
  content: '';
  position: absolute;
  top: -1px;
  left: -1px;
  right: -1px;
  bottom: -1px;
  border-radius: inherit;
  padding: 1px;
  background: radial-gradient(300px circle at var(--mouse-x, 0px) var(--mouse-y, 0px),
      rgba(124, 58, 237, 0.18) 0%,
      rgba(0, 0, 0, 0.03) 50%,
      transparent 100%);
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  z-index: 3;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.spotlight-card:hover::before {
  opacity: 1;
}

.spotlight-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: inherit;
  background: radial-gradient(350px circle at var(--mouse-x, 0px) var(--mouse-y, 0px),
      rgba(124, 58, 237, 0.04),
      transparent 70%);
  pointer-events: none;
  z-index: 1;
  opacity: 0;
  transition: opacity 0.5s ease;
}

.spotlight-card:hover::after {
  opacity: 1;
}

/* Live Mock Performance Card */
.live-mock-card {
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.5s ease, opacity 0.5s ease !important;
}

.live-mock-card:hover {
  transform: translateY(-8px) rotate(0.5deg);
  box-shadow: 0 30px 60px -15px rgba(124, 58, 237, 0.15) !important;
}

.live-card-media {
  position: relative;
  width: 100%;
  height: 380px;
  background-color: #1A1A2E;
  background-size: cover;
  background-position: center;
  overflow: hidden;
}

/* Simulated atmospheric overlay for live card background */
.live-card-media::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(26, 26, 46, 0) 30%, rgba(26, 26, 46, 0.85) 100%);
  pointer-events: none;
  z-index: 1;
}

.live-tag {
  position: absolute;
  top: 24px;
  left: 24px;
  background-color: rgba(26, 26, 46, 0.8);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #FFFFFF;
  padding: 6px 12px;
  border-radius: var(--round-sm);
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid rgba(255, 255, 255, 0.1);
  z-index: 2;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--primary);
  border-radius: 50%;
  position: relative;
  animation: pulse-glow 1.5s infinite;
  box-shadow: 0 0 8px var(--primary);
}

@keyframes pulse-glow {
  0% {
    transform: scale(0.9);
    box-shadow: 0 0 0 0 rgba(124, 58, 237, 0.7);
  }

  70% {
    transform: scale(1.1);
    box-shadow: 0 0 0 8px rgba(124, 58, 237, 0);
  }

  100% {
    transform: scale(0.9);
    box-shadow: 0 0 0 0 rgba(124, 58, 237, 0);
  }
}

.live-card-overlay-content {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 32px;
  color: #FFFFFF;
  z-index: 2;
}

.live-card-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: #FFFFFF;
}

.live-card-loc {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.8);
  display: flex;
  align-items: center;
  gap: 6px;
}

.live-card-badge-row {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}

.live-genre-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 4px 8px;
  border-radius: var(--round-sm);
  color: rgba(255, 255, 255, 0.9);
}

/* Survey Waitlist Section */
.survey-section {
  background-color: transparent;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.survey-wrapper {
  max-width: 860px;
  margin: 0 auto;
  text-align: left;
}

.survey-header {
  text-align: center;
  margin-bottom: 48px;
}

.survey-title {
  font-family: Pretendard, -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  font-weight: 500;
  font-style: normal;
  font-size: clamp(2rem, 4vw, 3rem);
  leading-trim: none;
  line-height: 1;
  letter-spacing: -0.02em;
  color: #000000;
  margin-bottom: 12px;
}

.survey-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
}

.survey-notice {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--primary);
  margin-top: 10px;
}

.survey-card {
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-radius: var(--round-lg);
  border: 1px solid rgba(0, 0, 0, 0.08);
  padding: 48px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06), inset 0 1px 0 0 rgba(255, 255, 255, 0.8);
}

.survey-progress-bar {
  width: 100%;
  height: 6px;
  background: rgba(0, 0, 0, 0.05);
  border-radius: 10px;
  margin-bottom: 2.5rem;
  overflow: hidden;
}

.survey-progress {
  height: 100%;
  background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
  transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 0 12px rgba(124, 58, 237, 0.3);
}

.funnel-step {
  display: none;
}

.funnel-step.active {
  display: block;
  animation: fadeInStep 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeInStep {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.survey-question {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 2rem;
  line-height: 1.4;
  color: #1A1A2E;
  font-family: var(--font-display);
}

.survey-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 2rem;
}

.option-btn {
  display: flex;
  align-items: center;
  background: rgba(0, 0, 0, 0.02);
  border: 1px solid rgba(0, 0, 0, 0.08);
  padding: 16px 24px;
  border-radius: var(--round-md);
  cursor: pointer;
  transition: var(--spring-transition);
  font-size: 1rem;
  color: var(--text-muted);
  box-sizing: border-box;
}

.option-btn input[type="radio"],
.option-btn input[type="checkbox"] {
  accent-color: var(--primary);
  width: 18px;
  height: 18px;
  cursor: pointer;
  flex-shrink: 0;
  margin-right: 16px;
}

.option-btn span {
  flex: 1;
  min-width: 0;
  white-space: normal;
  word-break: keep-all;
  overflow-wrap: break-word;
  line-height: 1.4;
}

.option-btn:hover {
  background: rgba(124, 58, 237, 0.04);
  border-color: rgba(124, 58, 237, 0.3);
  color: var(--text-ink);
  transform: translateY(-2px);
}

/* Modern CSS checked states */
.option-btn:has(input[type="radio"]:checked),
.option-btn:has(input[type="checkbox"]:checked) {
  background: rgba(124, 58, 237, 0.06);
  border-color: var(--primary);
  color: var(--text-ink);
  box-shadow: 0 0 0 1px var(--primary), 0 0 20px rgba(124, 58, 237, 0.1);
  font-weight: 600;
}

/* Inline Text Input for Custom Options */
.inline-text-input {
  background: rgba(0, 0, 0, 0.03);
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--round-sm);
  color: var(--text-ink);
  padding: 6px 12px;
  font-size: 0.85rem;
  margin-left: 12px;
  outline: none;
  flex: 1;
  min-width: 120px;
  box-sizing: border-box;
  transition: var(--smooth-transition);
}

.inline-text-input::placeholder {
  color: rgba(0, 0, 0, 0.3);
}

.inline-text-input:focus {
  border-color: var(--primary);
  background: rgba(124, 58, 237, 0.04);
  box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.15);
}

/* Toggle visibility based on checked state of parent */
.option-btn .inline-text-input {
  display: none;
}

.option-btn:has(input[type="radio"]:checked) .inline-text-input,
.option-btn:has(input[type="checkbox"]:checked) .inline-text-input {
  display: inline-block;
  animation: fadeInInput 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes fadeInInput {
  from {
    opacity: 0;
    transform: translateX(-8px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Survey Textarea for Open-ended Questions */
.survey-textarea {
  width: 100%;
  min-height: 120px;
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 16px;
  background-color: rgba(0, 0, 0, 0.02);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--round-md);
  color: var(--text-ink);
  outline: none;
  resize: vertical;
  transition: var(--smooth-transition);
  line-height: 1.6;
}

.survey-textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.6;
}

.survey-textarea:focus {
  border-color: var(--primary);
  background-color: rgba(124, 58, 237, 0.03);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.12);
}

/* Privacy Agreement Group */
.privacy-agreement {
  display: flex;
  align-items: flex-start;
}

.agreement-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Common Final Step Specifics */
#step-waitlist .form-group input[type="tel"] {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 16px;
  background-color: rgba(0, 0, 0, 0.02);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--round-md);
  color: var(--text-ink);
  outline: none;
  transition: var(--smooth-transition);
}

#step-waitlist .form-group input[type="tel"]:focus {
  border-color: var(--primary);
  background-color: rgba(124, 58, 237, 0.03);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.12);
}

/* Checkbox container for privacy agreement */
.checkbox-container {
  display: block;
  position: relative;
  padding-left: 28px;
  cursor: pointer;
  user-select: none;
  color: var(--text-muted);
  line-height: 1.5;
}

.checkbox-container input {
  position: absolute;
  opacity: 0;
  cursor: pointer;
  height: 0;
  width: 0;
}

.checkmark {
  position: absolute;
  top: 3px;
  left: 0;
  height: 18px;
  width: 18px;
  background-color: rgba(0, 0, 0, 0.03);
  border: 1px solid rgba(0, 0, 0, 0.15);
  border-radius: 4px;
  transition: var(--smooth-transition);
}

.checkbox-container:hover input~.checkmark {
  border-color: var(--primary);
  background-color: rgba(124, 58, 237, 0.04);
}

.checkbox-container input:checked~.checkmark {
  background-color: var(--primary);
  border-color: var(--primary);
  box-shadow: 0 0 10px rgba(124, 58, 237, 0.3);
}

.checkmark:after {
  content: "";
  position: absolute;
  display: none;
}

.checkbox-container input:checked~.checkmark:after {
  display: block;
}

.checkbox-container .checkmark:after {
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border: solid #FFFFFF;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.privacy-link {
  color: var(--primary);
  text-decoration: underline;
  transition: var(--smooth-transition);
}

.privacy-link:hover {
  color: var(--primary-hover);
}

/* Funnel Navigation Row */
.survey-nav {
  display: flex;
  justify-content: space-between;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.btn-survey-nav {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 8px 12px;
  border-radius: var(--round-md);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--spring-transition);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  box-shadow: none !important;
}

.btn-survey-nav:hover {
  background: transparent;
  color: var(--text-ink);
  transform: none;
}

.btn-survey-nav.next-step,
.btn-survey-nav.submit-waitlist {
  background: transparent;
  color: var(--primary);
  border: none;
  margin-left: auto;
  box-shadow: none !important;
}

.btn-survey-nav.next-step:hover,
.btn-survey-nav.submit-waitlist:hover {
  color: var(--primary-hover);
  transform: none;
}

/* Complete Screen */
.survey-complete-screen {
  text-align: center;
  padding: 2rem 1rem;
  animation: fadeInStep 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.complete-icon {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
}

.btn-survey-reset {
  background: rgba(0, 0, 0, 0.04);
  border: 1px solid rgba(0, 0, 0, 0.1);
  color: var(--text-ink);
  padding: 12px 32px;
  border-radius: var(--round-md);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--spring-transition);
}

.btn-survey-reset:hover {
  background: var(--primary);
  color: #FFFFFF;
  box-shadow: 0 5px 15px rgba(124, 58, 237, 0.25);
  transform: translateY(-2px);
}

/* Stats Block */
.waitlist-stats {
  display: flex;
  justify-content: space-around;
  width: 100%;
}

.stat-item {
  flex: 1;
}

.stat-number {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--primary);
}

.stat-number span {
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
}

.stat-label {
  color: var(--text-muted);
}

/* Core Features Background Glow */
#features {
  background:
    radial-gradient(450px 450px at 50% 65%, rgba(228, 195, 255, 0.3) 0%, rgba(228, 195, 255, 0) 100%),
    #ffffff;
}

/* Core Features Symmetric Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 25px;
  max-width: 860px;
  margin: 0 auto;
}

.feature-card {
  padding: 48px;
  background: #ffffff;
  border-radius: 40px;
  border: none;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: flex-start;
  transition: all 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0px 25px 40px 0px rgba(133, 9, 234, 0.15) !important;
}

.feature-icon {
  color: var(--primary-vivid);
  margin-bottom: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.feature-icon svg {
  width: 36px;
  height: 36px;
  stroke-width: 2;
}

.feature-card-header {
  margin-bottom: 32px;
}

.feature-icon-box {
  width: 56px;
  height: 56px;
  background-color: rgba(124, 58, 237, 0.06);
  border: 1px solid rgba(124, 58, 237, 0.12);
  border-radius: var(--round-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.5rem;
  margin-bottom: 24px;
  box-shadow: 0 0 15px rgba(124, 58, 237, 0.06);
}

/* Large feature icon box for 160~200px images */
.feature-icon-box-large {
  width: 180px;
  height: 180px;
  background-color: rgba(124, 58, 237, 0.04);
  border: 1px solid rgba(124, 58, 237, 0.08);
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  margin-bottom: 24px;
  overflow: hidden;
}

.feature-icon-box-large img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.feature-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--text-ink);
}

.feature-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Upcoming Additions Section Background Glow */
#upcoming {
  background:
    radial-gradient(550px 550px at 60% 20%, #CFF9FF80 0%, rgba(207, 249, 255, 0) 100%),
    #ffffff;
}

/* Ticker Container (Full Bleed) — Swiper.js Autoplay */
.upcoming-ticker-container {
  width: 100%;
  overflow: hidden;
  padding: 90px 0;
  position: relative;
}

/* 양쪽 페이드 오버레이 */
.upcoming-ticker-container::before,
.upcoming-ticker-container::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 150px;
  z-index: 2;
  pointer-events: none;
}

.upcoming-ticker-container::before {
  left: 0;
  background: linear-gradient(to right, var(--bg-canvas, #ffffff), transparent);
}

.upcoming-ticker-container::after {
  right: 0;
  background: linear-gradient(to left, var(--bg-canvas, #ffffff), transparent);
}

/* Swiper Slide — auto width로 카드 크기에 맞춤 */
.swiper.upcoming-swiper {
  overflow: visible;
  padding: 30px 0;
  margin: -30px 0;
}

.swiper.upcoming-swiper .swiper-wrapper {
  transition-timing-function: linear !important; /* 끊김 없는 linear 이동 */
}

.swiper.upcoming-swiper .swiper-slide {
  width: auto;
  height: auto;
  display: flex;
}

.upcoming-card {
  width: 360px;
  height: auto;
  aspect-ratio: 472 / 628;
  padding: 56px 32px 32px;
  background: radial-gradient(74.11% 74.11% at 50.07% 50.06%, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0.7) 100%);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 28px;
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  box-shadow: 0px 6px 20px 0px rgba(200, 220, 230, 0.28);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: flex-start;
  position: relative;
  z-index: 1;
  transition: all 0.6s cubic-bezier(0.25, 1, 0.5, 1);
  box-sizing: border-box;
}

@media (hover: hover) {
  .upcoming-card:hover {
    transform: translateY(-6px);
    box-shadow: 0px 12px 32px 0px rgba(180, 210, 225, 0.4);
    z-index: 10;
  }

  /* Sibling focus dimming */
  .swiper.upcoming-swiper:hover .upcoming-card:not(:hover) {
    opacity: 0.65;
    filter: grayscale(0.1) blur(0.5px);
  }
}

/* Mobile & Touch Click Hover Effect Fallback */
.upcoming-card.mobile-hover {
  transform: translateY(-6px) !important;
  box-shadow: 0px 12px 32px 0px rgba(180, 210, 225, 0.4) !important;
  z-index: 10 !important;
}

/* Sibling focus dimming for mobile active card */
.swiper.upcoming-swiper:has(.upcoming-card.mobile-hover) .upcoming-card:not(.mobile-hover) {
  opacity: 0.65;
  filter: grayscale(0.1) blur(0.5px);
}

.upcoming-icon {
  font-size: 1.8rem;
  margin-bottom: 20px;
  display: inline-block;
}

/* Large upcoming icon for 3D icons */
.upcoming-icon-large {
  width: 200px;
  height: 200px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  align-self: center;
}

.upcoming-icon-large.icon-reward {
  width: 170px;
  height: 170px;
  margin-bottom: 34px;
}

.upcoming-icon-large img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.upcoming-title {
  font-size: 1.55rem;
  font-weight: 800;
  margin-top: auto;
  margin-bottom: 20px;
  color: var(--text-ink);
}

.upcoming-desc {
  font-size: 1.0rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Teaser Video Mockup */
.video-section {
  background:
    radial-gradient(1100px 900px at 0% 100%, rgba(219, 250, 255, 1) 0%, rgba(219, 250, 255, 0) 100%),
    radial-gradient(1100px 900px at 100% 100%, rgba(238, 224, 255, 1) 0%, rgba(238, 224, 255, 0) 100%),
    #ffffff;
  border-top: none;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  position: relative;
}

.video-container {
  max-width: 1000px;
  margin: 0 auto;
}

.video-mockup {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 40px;
  overflow: hidden;
  box-shadow: 0px 20px 50px rgba(133, 9, 234, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0.5);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s ease, border-color 0.4s ease;
}

.video-mockup:hover {
  transform: translateY(-8px);
  box-shadow: 0px 30px 60px rgba(133, 9, 234, 0.12);
  border-color: rgba(133, 9, 234, 0.15);
}

.video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(57.5% 175.39% at 50% 50%, rgba(255, 255, 255, 0) 25%, rgba(255, 255, 255, 0.6) 100%);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: var(--text-ink);
  z-index: 2;
  transition: var(--smooth-transition);
  padding: 40px 30px;
  box-sizing: border-box;
}

.video-mockup:hover .video-overlay {
  background: radial-gradient(57.5% 175.39% at 50% 50%, rgba(255, 255, 255, 0) 25%, rgba(255, 255, 255, 0.6) 100%);
}

.play-btn {
  width: 80px;
  height: 80px;
  background-color: transparent;
  border: 2px solid var(--primary-vivid);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-vivid);
  font-size: 1.8rem;
  margin-bottom: 24px;
  transition: var(--spring-transition);
}

.video-mockup:hover .play-btn {
  transform: scale(1.1);
  background-color: rgba(133, 9, 234, 0.05);
  box-shadow: 0 0 20px rgba(133, 9, 234, 0.15);
  color: var(--primary-vivid);
}

.video-card-title {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary-vivid);
  margin-bottom: 12px;
}

.video-card-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.6;
  text-align: center;
  max-width: 600px;
  margin: 0;
}

/* Footer styling */
.footer {
  background-color: #ffffff;
  padding: 80px 0;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
  text-align: center;
}

.footer-content {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer-logo {
  display: inline-block;
  margin-bottom: 24px;
  transition: transform 0.3s ease;
}

.footer-logo:hover {
  transform: scale(1.05);
}

.footer-logo-img {
  height: 28px;
  width: auto;
  display: block;
}

.footer-slogan {
  margin-bottom: 32px;
}

.footer-slogan-line {
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-ink);
  line-height: 1.5;
  margin-bottom: 4px;
}

.footer-slogan-line.sub {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-ink);
}

.footer-links-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.footer-link-nav {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-ink);
  text-decoration: none;
  transition: var(--smooth-transition);
}

.footer-link-nav:hover {
  color: var(--primary);
}

.footer-link-divider {
  color: rgba(0, 0, 0, 0.15);
  font-size: 0.85rem;
}

.footer-copyright-box {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

@media (max-width: 480px) {
  .footer-links-row {
    flex-direction: column;
    gap: 12px;
  }

  .footer-link-divider {
    display: none;
  }
}

/* Entrance Animations using Intersection Observer */
.fade-up-init {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, opacity;
}

.fade-up-init.fade-up-visible {
  opacity: 1;
  transform: translateY(0);
}

.pop-in-init {
  opacity: 0;
  transform: scale(0.9) translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform, opacity;
}

.pop-in-init.pop-in-visible {
  opacity: 1;
  transform: scale(1) translateY(0);
}

.fade-in-init {
  opacity: 0;
  transition: opacity 0.8s ease;
  will-change: opacity;
}

.fade-in-init.fade-in-visible {
  opacity: 1;
}

/* Stagger delay classes */
.delay-100 {
  transition-delay: 100ms;
}

.delay-200 {
  transition-delay: 200ms;
}

.delay-300 {
  transition-delay: 300ms;
}

.delay-400 {
  transition-delay: 400ms;
}

/* Responsive Media Queries */
@media (max-width: 1200px) {
  .upcoming-card {
    width: 330px;
    min-height: auto;
    padding: 48px 28px 28px;
  }

  .upcoming-icon-large {
    width: 180px;
    height: 180px;
    margin-bottom: 20px;
  }

  .upcoming-icon-large.icon-reward {
    width: 155px;
    height: 155px;
    margin-bottom: 30px;
  }

  .upcoming-title {
    margin-top: auto;
  }
}

@media (max-width: 1024px) {
  .container {
    padding: 0 40px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-content {
    align-items: center;
    text-align: center;
  }

  .hero-title {
    text-align: center;
  }

  .hero-subtext {
    display: block;
    margin-bottom: 2px;
  }

  .slider-container {
    display: block;
    width: 100% !important;
    text-align: center;
    margin: 2px auto;
  }

  .slider-text {
    text-align: center !important;
  }

  .hero-actions {
    justify-content: center;
  }


  .feature-card.wide-top,
  .feature-card.narrow-top,
  .feature-card.narrow-bottom-1,
  .feature-card.wide-bottom-2 {
    grid-column: span 12;
  }



  .live-card-overlay-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .live-card-loc {
    justify-content: center;
  }

  .live-card-badge-row {
    justify-content: center;
  }
}

@media (max-width: 768px) {
  :root {
    --section-gap-lg: 80px;
  }

  .container {
    padding: 0 20px;
  }

  .header-container {
    height: 52px;
    width: calc(100% - 32px);
    max-width: 480px;
    padding: 0 16px 0 10px;
    gap: 16px;
  }



  .hamburger {
    display: block;
    position: relative;
    z-index: 1002;
  }

  .hamburger.active .hamburger-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active .hamburger-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .btn-header {
    width: 100%;
    text-align: center;
  }

  .section-title {
    font-size: 1.8rem;
    line-height: 1.1;
  }

  .hero {
    padding-top: 110px;
    /* 여백 증가 */
    padding-bottom: 110px;
    /* 하단 여백 추가 */
  }

  .hero-title {
    font-size: 1.8rem;
  }

  .hero-subtext {
    display: block;
    margin-bottom: 2px;
  }

  .slider-container {
    display: block;
    width: 100% !important;
    text-align: center;
    margin: 2px auto;
    height: 1.6em;
    /* 모바일에서도 높이 충분히 지정하여 짤림 방지 */
  }

  .slider-text {
    text-align: center !important;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .live-card-media {
    height: 280px;
  }

  .live-card-overlay-content {
    padding: 16px 20px;
    /* 모바일 패딩 축소로 자식 요소 짤림 방지 */
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .live-card-title {
    font-size: 1.25rem;
    /* 모바일 타이틀 폰트 크기 축소 */
  }

  .live-card-loc {
    font-size: 0.85rem;
    /* 모바일 위치 폰트 크기 축소 */
    justify-content: center;
  }

  .live-card-badge-row {
    margin-top: 10px;
    justify-content: center;
  }

  .survey-card {
    padding: 32px 20px;
  }

  .survey-question {
    font-size: 1.15rem;
    /* 모바일 설문 질문 크기 축소하여 레이아웃 밀림 방지 */
    margin-bottom: 24px;
  }

  .survey-options {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .option-btn {
    padding: 16px;
    /* 모바일 설문 옵션 패딩 축소 */
    font-size: 0.95rem;
    /* 모바일 폰트 크기 축소 */
    gap: 4px;
  }

  .option-desc {
    font-size: 0.8rem;
    /* 모바일 설명 크기 축소 */
  }


  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-links-col {
    align-items: flex-start;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }
}

/* ==========================================================================
   5. Modern Startup High-Growth Aesthetics & TwinH Elements
   ========================================================================== */

/* Ambient Glow Matrix Mesh */
.ambient-glows-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
  z-index: -2;
}

.glow-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(140px);
  opacity: 0.04;
  mix-blend-mode: multiply;
  animation: float-glow 25s infinite alternate ease-in-out;
  will-change: transform, opacity;
}

.glow-purple {
  width: 650px;
  height: 650px;
  background-color: var(--primary);
  top: -120px;
  left: -120px;
  animation: float-glow 22s infinite alternate ease-in-out, pulse-glow-1 12s infinite ease-in-out;
}

.glow-indigo {
  width: 850px;
  height: 850px;
  background-color: var(--secondary);
  top: 15%;
  right: -250px;
  animation: float-glow 32s infinite alternate ease-in-out, pulse-glow-2 15s infinite ease-in-out;
  animation-delay: -6s;
}

.glow-cyan {
  width: 550px;
  height: 550px;
  background-color: #06B6D4;
  top: 48%;
  left: 12%;
  opacity: 0.03;
  animation: float-glow 28s infinite alternate ease-in-out, pulse-glow-1 18s infinite ease-in-out;
  animation-delay: -12s;
}

@keyframes float-glow {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }

  50% {
    transform: translate(90px, 70px) rotate(180deg);
  }

  100% {
    transform: translate(-50px, -90px) rotate(360deg);
  }
}

@keyframes pulse-glow-1 {

  0%,
  100% {
    opacity: 0.03;
    transform: scale(1);
  }

  50% {
    opacity: 0.05;
    transform: scale(1.15);
  }
}

@keyframes pulse-glow-2 {

  0%,
  100% {
    opacity: 0.03;
    transform: scale(1.1);
  }

  50% {
    opacity: 0.045;
    transform: scale(0.9);
  }
}

@media (min-width: 1025px) {
  .slider-text {
    text-align: left;
  }
}

/* Hero Text Slogan Slider */
.hero-subtext {
  display: block;
  margin-bottom: 2px;
}

.slider-container {
  display: block;
  position: relative;
  overflow: hidden;
  height: 1.25em;
  /* Match line height of hero title */
  width: 100%;
  margin: 6px 0;
  padding: 0;
}

.slider-text {
  display: block;
  position: absolute;
  left: 0;
  top: 100%;
  width: 100%;
  opacity: 0;
  color: var(--primary);
  -webkit-text-fill-color: var(--primary);
  background-clip: border-box;
  -webkit-background-clip: border-box;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.6s ease;
  font-weight: 800;
  white-space: nowrap;
  line-height: 1.2;
  text-align: left;
  letter-spacing: -0.03em;
}

.slider-text.active {
  top: 0;
  opacity: 1;
  transform: translateY(0);
}

.slider-text.exit {
  transform: translateY(-100%);
  opacity: 0;
}

.highlight-purple {
  display: inline-block;
  color: var(--primary);
  -webkit-text-fill-color: var(--primary);
  background-clip: border-box;
  -webkit-background-clip: border-box;
  background: linear-gradient(120deg, rgba(124, 58, 237, 0.08) 0%, rgba(6, 182, 212, 0.06) 100%);
  padding: 4px 18px;
  border-radius: var(--round-sm);
  margin-top: 4px;
  border: 1px solid rgba(124, 58, 237, 0.15);
}

/* Parallax Waves Styling */
.waves-container {
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  overflow: hidden;
  line-height: 0;
  z-index: 10;
  pointer-events: none;
}

.parallax-waves {
  position: relative;
  width: 100%;
  height: 80px;
  min-height: 40px;
  max-height: 120px;
}

/* Waves motion keyframes */
.parallax-layer>use {
  animation: move-forever 25s cubic-bezier(.55, .5, .45, .5) infinite;
}

.parallax-layer>use:nth-child(1) {
  animation-delay: -2s;
  animation-duration: 7s;
}

.parallax-layer>use:nth-child(2) {
  animation-delay: -3s;
  animation-duration: 10s;
}

.parallax-layer>use:nth-child(3) {
  animation-delay: -4s;
  animation-duration: 13s;
}

.parallax-layer>use:nth-child(4) {
  animation-delay: -5s;
  animation-duration: 20s;
}

@keyframes move-forever {
  0% {
    transform: translate3d(-90px, 0, 0);
  }

  100% {
    transform: translate3d(85px, 0, 0);
  }
}

@media (max-width: 768px) {
  .parallax-waves {
    height: 40px;
  }
}

/* Infinite Horizontal Marquee Roller — Swiper.js */
.section-roller {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 24px 0;
  overflow: hidden;
  position: relative;
  z-index: 5;
  margin-top: 130px;
  -webkit-mask-image: linear-gradient(to right, transparent, #000 100px, #000 calc(100% - 100px), transparent);
  mask-image: linear-gradient(to right, transparent, #000 100px, #000 calc(100% - 100px), transparent);
}

/* 양끝 페이드 오버레이 제거 - CSS Mask로 투명도 처리 대체 */

/* Swiper 롤러 설정 */
.swiper.roller-swiper {
  overflow: visible;
}

.swiper.roller-swiper .swiper-wrapper {
  transition-timing-function: linear !important;
}

.swiper.roller-swiper .swiper-slide {
  width: auto;
}

.roller-slide span {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 600;
  color: rgba(153, 153, 153, 1);
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  transition: var(--smooth-transition);
}

.roller-slide span:hover {
  color: var(--primary);
  transform: scale(1.05);
}

/* Platform Stats Cards Counter Section */
.stats-section {
  background-color: var(--bg-canvas);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  padding: var(--section-gap-sm) 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.stat-card {
  background-color: #F8F7FF;
  border-radius: var(--round-lg);
  border: 1px solid rgba(124, 58, 237, 0.08);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
  padding: 40px;
  text-align: center;
  transition: var(--spring-transition);
}

.stat-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}

.stat-num-box {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 4vw, 3.8rem);
  font-weight: 800;
  background: linear-gradient(135deg, #7C3AED 0%, #06B6D4 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  line-height: 1;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  filter: drop-shadow(0 0 10px rgba(124, 58, 237, 0.15));
}

.stat-plus {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  font-weight: 700;
}

.stat-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-ink);
  margin-bottom: 12px;
}

.stat-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.5;
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .stat-card {
    padding: 30px 20px;
  }
}

/* Floating Quick CTA Button */
.floating-cta {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 999;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: #FFFFFF;
  padding: 16px 28px;
  border-radius: 9999px;
  box-shadow: 0 10px 30px rgba(124, 58, 237, 0.3);
  text-decoration: none;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: var(--spring-transition);
}

.floating-cta:hover {
  transform: scale(1.06) translateY(-4px);
  box-shadow: 0 15px 40px rgba(124, 58, 237, 0.45);
}

.floating-cta-pulse {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: 9999px;
  border: 2px solid var(--primary);
  box-sizing: border-box;
  animation: pulse-out 2s infinite;
  pointer-events: none;
  opacity: 0.8;
}

@keyframes pulse-out {
  0% {
    transform: scale(1);
    opacity: 0.8;
  }

  100% {
    transform: scale(1.2);
    opacity: 0;
  }
}

.floating-cta-icon {
  font-size: 1.2rem;
}

@media (max-width: 768px) {
  .floating-cta {
    bottom: 20px;
    right: 20px;
    padding: 12px 20px;
    font-size: 0.85rem;
  }
}

/* Consolidated horizontal slogan clipping optimization below at line 3380 */

/* Toast Message Style */
.toast {
  position: fixed;
  bottom: 2rem;
  right: -350px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: #FFFFFF;
  padding: 1rem 1.8rem;
  border-radius: var(--round-md);
  font-weight: 700;
  box-shadow: 0 10px 30px rgba(124, 58, 237, 0.3);
  z-index: 10000;
  transition: var(--smooth-transition);
}

.toast.show {
  right: 2rem;
}

/* Modal Overlay Dialog Styling */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.3);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  z-index: 10000;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal.show {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: var(--round-lg);
  width: 90%;
  max-width: 600px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.12),
    0 0 100px rgba(124, 58, 237, 0.05);
  transform: translateY(20px);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
}

.modal.show .modal-content {
  transform: translateY(0);
}

.modal-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  font-size: 1.3rem;
  color: var(--text-ink);
  font-family: var(--font-display);
}

.close-modal {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.8rem;
  cursor: pointer;
  line-height: 1;
  transition: var(--smooth-transition);
}

.close-modal:hover {
  color: var(--text-ink);
}

.modal-body {
  padding: 2rem;
  overflow-y: auto;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.modal-body p {
  margin-bottom: 1.5rem;
}

/* Privacy Modal Table */
.privacy-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
  font-size: 0.8rem;
}

.privacy-table th,
.privacy-table td {
  border: 1px solid rgba(0, 0, 0, 0.08);
  padding: 10px 12px;
  text-align: left;
}

.privacy-table th {
  background: rgba(0, 0, 0, 0.03);
  color: var(--text-ink);
  font-weight: 600;
}

.privacy-table td strong {
  color: var(--primary);
}

.term-highlight {
  color: var(--primary);
}

.privacy-notes {
  border-left: 2px solid var(--primary);
  padding-left: 12px;
  margin-top: 1.5rem;
}

.privacy-notes p {
  font-size: 0.8rem;
  margin-bottom: 0.5rem;
}

/* Legal Documents Page Styles */
.legal-container {
  max-width: 900px;
  margin: 150px auto 60px;
  /* absolute 캔버스 격리 후, 헤더에 가려지지 않도록 상단 여백을 넉넉히(150px) 확보 */
  padding: 0 20px;
  position: relative;
  z-index: 10;
}

.legal-document-card {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 20px;
  padding: 50px 40px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.06);
  position: relative;
  overflow: hidden;
}

.legal-document-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.03) 0%, transparent 60%);
  pointer-events: none;
  z-index: 1;
}

.legal-content-wrapper {
  position: relative;
  z-index: 2;
}

.legal-header {
  text-align: center;
  margin-bottom: 40px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  padding-bottom: 30px;
}

.legal-title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-ink);
  margin-bottom: 15px;
  background: linear-gradient(135deg, #1A1A2E 30%, var(--primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.legal-meta {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.legal-section {
  margin-bottom: 30px;
}

.legal-section h4 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
  margin-top: 40px;
  margin-bottom: 15px;
  border-bottom: 1px solid rgba(124, 58, 237, 0.1);
  padding-bottom: 8px;
}

.legal-section h5 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-ink);
  margin-top: 25px;
  margin-bottom: 10px;
}

.legal-section p {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-muted);
  margin-bottom: 15px;
  word-break: keep-all;
}

.legal-section ul {
  list-style-type: disc;
  margin-left: 20px;
  margin-bottom: 15px;
}

.legal-section li {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-muted);
  margin-bottom: 8px;
  word-break: keep-all;
}

.legal-section strong {
  color: var(--text-ink);
  font-weight: 600;
}

.legal-section a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color 0.2s ease;
}

.legal-section a:hover {
  color: var(--primary-hover);
}

/* Mobile responsive styles for legal pages */
@media (max-width: 768px) {
  .legal-container {
    margin: 120px auto 40px;
    /* 모바일 헤더(70px)에 가려지지 않도록 상단 마진을 120px로 확보 */
    padding: 0 15px;
  }

  .legal-document-card {
    padding: 30px 20px;
    border-radius: 16px;
  }

  .legal-title {
    font-size: 1.8rem;
  }

  .legal-section h4 {
    font-size: 1.15rem;
    margin-top: 30px;
  }

  .legal-section h5 {
    font-size: 1rem;
    margin-top: 20px;
  }
}

/* ==========================================================================
   10. Premium Custom Dialog Modal (Alert & Confirm Glassmorphism)
   ========================================================================== */
.melwith-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 99990;
  /* 커스텀 커서(999999)보다 한 단계 낮춰서 커서가 항상 위에 렌더링되게 수정 */
  background: rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.melwith-modal-backdrop.show {
  opacity: 1;
  pointer-events: auto;
}

.melwith-modal-card {
  width: 90%;
  max-width: 420px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 24px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1), 0 0 50px rgba(124, 58, 237, 0.05);
  padding: 36px 28px;
  text-align: center;
  position: relative;
  overflow: hidden;
  transform: scale(0.9) translateY(20px);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.melwith-modal-backdrop.show .melwith-modal-card {
  transform: scale(1) translateY(0);
}

/* Subtle top neon border */
.melwith-modal-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 140px;
  height: 3px;
  background: linear-gradient(90deg, var(--secondary), var(--primary));
  border-radius: 0 0 8px 8px;
}

/* Custom Neon Icons depending on type */
.melwith-modal-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(124, 58, 237, 0.06);
  border: 1px solid rgba(124, 58, 237, 0.15);
  box-shadow: 0 0 20px rgba(124, 58, 237, 0.08);
  color: var(--primary);
  transition: var(--smooth-transition);
}

.melwith-modal-icon.type-confirm {
  background: rgba(6, 182, 212, 0.06);
  border-color: rgba(6, 182, 212, 0.15);
  box-shadow: 0 0 20px rgba(6, 182, 212, 0.08);
  color: #06B6D4;
}

.melwith-modal-icon svg {
  width: 24px;
  height: 24px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.melwith-modal-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-ink);
  margin-bottom: 12px;
  letter-spacing: -0.5px;
}

.melwith-modal-message {
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-muted);
  margin-bottom: 28px;
  word-break: keep-all;
  white-space: pre-wrap;
}

/* Button Layout */
.melwith-modal-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  align-items: center;
}

.melwith-modal-btn {
  font-family: var(--font-body);
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--smooth-transition);
  outline: none;
  border: none;
}

.melwith-modal-btn-confirm {
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  color: #FFFFFF;
  box-shadow: 0 4px 15px rgba(124, 58, 237, 0.2);
}

.melwith-modal-btn-confirm:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(124, 58, 237, 0.3);
}

.melwith-modal-btn-cancel {
  background: rgba(0, 0, 0, 0.04);
  color: var(--text-muted);
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.melwith-modal-btn-cancel:hover {
  background: rgba(0, 0, 0, 0.06);
  color: var(--text-ink);
  border-color: rgba(0, 0, 0, 0.12);
  transform: translateY(-1px);
}

/* Lucide Icons Custom Integration */
.lucide {
  stroke-width: 2.2px;
  stroke: currentColor;
  fill: none;
  display: inline-block;
  vertical-align: middle;
}

/* Feature section Lucide box adjustment */
.feature-icon-box i {
  width: 24px;
  height: 24px;
}

/* Upcoming features icons */
.upcoming-icon {
  width: 28px;
  height: 28px;
  color: var(--primary);
  margin-bottom: 20px;
  display: block;
}

.upcoming-icon i {
  width: 100%;
  height: 100%;
}

/* Live Card Location Pin spacing */
.live-card-loc i {
  margin-right: 4px;
  width: 14px;
  height: 14px;
  color: var(--primary);
}

/* Rolling banner icon spacing */
.roller-slide span i {
  margin-right: 6px;
  width: 14px;
  height: 14px;
  color: var(--primary-glow);
}

/* Video Section Play Button Lucide integration */
.play-btn {
  display: flex !important;
  align-items: center;
  justify-content: center;
}

.play-btn i {
  width: 24px;
  height: 24px;
  color: #FFFFFF;
  fill: #FFFFFF;
  /* make play arrow solid white */
}

/* Survey Option Button Icons alignment */
.option-btn i {
  margin-right: 8px;
  width: 1.15rem;
  height: 1.15rem;
  vertical-align: -0.15em;
  color: var(--primary);
}

/* Placeholder clapper icon */
#video-iframe-placeholder p i {
  margin-right: 6px;
  vertical-align: middle;
  width: 20px;
  height: 20px;
  display: inline-block;
}

/* Complete screen sparkles icon */
.complete-icon {
  display: flex;
  justify-content: center;
  align-items: center;
  color: var(--primary);
  filter: drop-shadow(0 0 10px rgba(124, 58, 237, 0.25));
  margin-bottom: 1.5rem;
}

.complete-icon i {
  width: 48px;
  height: 48px;
}

/* ==========================================================================
   11. 완벽한 반응형 미디어 쿼리 (Tablet & Mobile) 오버라이드
   ========================================================================== */

/* 태블릿 브레이크포인트 (1024px 이하) */
@media (max-width: 1024px) {

  /* 헤더 높이 및 여백 */
  .header-container {
    height: 52px;
  }

  /* 히어로 섹션 1열 배치 */
  .hero {
    padding-top: 130px;
    /* 여백 증가 */
    padding-bottom: 130px;
    /* 하단 여백 추가 */
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
    text-align: center;
    width: 100%;
  }

  .hero-content {
    align-items: center;
    text-align: center;
    min-width: 0;
    width: 100%;
  }

  .hero-title {
    text-align: center;
  }

  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
    width: 100%;
  }

  .hero-visual {
    width: 100%;
    max-width: 550px;
    margin: 0 auto;
  }

  /* 4대 혁신 그리드 카드 - 정갈한 2열 격자 배치 */
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .feature-card.wide-top,
  .feature-card.narrow-top,
  .feature-card.narrow-bottom-1,
  .feature-card.wide-bottom-2 {
    grid-column: span 1 !important;
  }

  .feature-card {
    padding: 32px;
    min-height: 280px;
  }



  /* 설문조사 카드 패딩 축소 */
  .survey-card {
    padding: 36px;
  }
}

/* 모바일 브레이크포인트 (768px 이하) */
@media (max-width: 768px) {

  .section {
    scroll-margin-top: 80px;
  }

  .section-intro {
    margin-bottom: 40px;
  }

  .section-intro .section-title {
    font-size: 1.8rem;
  }

  .teaser-title {
    margin-bottom: 32px;
    font-size: 1.8rem;
  }

  #upcoming {
    padding-bottom: 20px;
  }

  #teaser-section {
    padding-top: 40px;
  }

  /* 롤러 반응형 */
  .section-roller {
    padding: 20px 0;
    margin-top: 100px;
    -webkit-mask-image: linear-gradient(to right, transparent, #000 60px, #000 calc(100% - 60px), transparent);
    mask-image: linear-gradient(to right, transparent, #000 60px, #000 calc(100% - 60px), transparent);
  }

  .roller-slide span {
    font-size: 0.88rem;
    gap: 7px;
  }

  /* 모바일 네비게이션 햄버거 메뉴 */
  .hamburger {
    display: block;
    position: relative;
    z-index: 1002;
  }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 290px;
    height: 100vh;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    padding: 80px 40px;
    border-left: 1px solid rgba(0, 0, 0, 0.06);
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.08);
    transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 1001;
  }

  .nav-links.active {
    right: 0;
  }

  /* 모바일 네비게이션 링크 사이즈 조정 */
  .nav-links .nav-link {
    font-size: 1.1rem;
    padding: 8px 0;
    width: 100%;
    text-align: center;
  }

  /* 햄버거 라인 애니메이션 */
  .hamburger.active .hamburger-line:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active .hamburger-line:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  /* 히어로 영역 폰트 및 레이아웃 고도화 */
  .hero-title {
    font-size: clamp(1.8rem, 6.5vw, 2.3rem);
    line-height: 1.3;
  }

  .hero-desc {
    font-size: clamp(0.9rem, 2vw, 1rem);
    line-height: 24px;
    margin-top: 18px;
    margin-bottom: 28px;
  }

  .upcoming-ticker-container {
    padding: 40px 0;
  }

  .upcoming-card {
    width: 310px;
    min-height: auto;
    padding: 48px 26px 24px;
    border-radius: 24px;
  }

  .upcoming-icon-large {
    width: 160px;
    height: 160px;
    margin-bottom: 20px;
  }

  .upcoming-icon-large.icon-reward {
    width: 135px;
    height: 135px;
    margin-bottom: 30px;
  }

  .upcoming-title {
    font-size: 1.3rem;
    margin-top: auto;
    margin-bottom: 18px;
  }

  .upcoming-desc {
    font-size: 0.9rem;
    line-height: 1.55;
  }

  .upcoming-ticker-container::before,
  .upcoming-ticker-container::after {
    width: 80px;
  }

  .hero-actions {
    flex-direction: column;
    gap: 12px;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
    padding: 14px 20px;
  }

  .live-card-media {
    height: 300px;
  }

  .live-card-overlay-content {
    padding: 20px;
  }

  .live-card-title {
    font-size: 1.3rem;
  }

  #features {
    background:
      radial-gradient(300px 300px at 50% 50%, rgba(228, 195, 255, 0.3) 0%, rgba(228, 195, 255, 0) 100%),
      #ffffff;
  }

  /* 4대 혁신 그리드 - 1열 수직 배열 및 여백 축소 */
  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .feature-card {
    padding: 24px;
    border-radius: 24px;
    min-height: auto;
  }

  .feature-title {
    font-size: 1.35rem;
    margin-bottom: 12px;
  }

  .feature-desc {
    font-size: 0.95rem;
  }

  .feature-icon-box {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
  }

  .feature-icon-box-large {
    width: 140px;
    height: 140px;
    border-radius: 20px;
  }

  /* 출시 예정 기능 그리드 - 가로 슬라이더 레이아웃 */
  .upcoming-ticker-container::before,
  .upcoming-ticker-container::after {
    display: none;
  }

  .section-roller {
    padding: 18px 0;
    margin-top: 80px;
    -webkit-mask-image: none;
    mask-image: none;
  }

  .roller-slide span {
    font-size: 0.82rem;
    gap: 6px;
  }

  .roller-slide span i {
    width: 12px;
    height: 12px;
  }



  /* Merged into main upcoming-card 768px media query block above */

  /* 설문조사 Funnel 카드 극대 최적화 */
  .survey-header {
    margin-bottom: 28px;
    text-align: center;
  }

  .survey-title {
    font-size: 1.8rem;
    line-height: 1.1;
  }

  .survey-card {
    padding: 24px 16px;
    border-radius: var(--round-md);
  }

  .survey-question {
    font-size: 1rem !important;
    margin-bottom: 1.2rem !important;
  }

  .option-btn {
    padding: 12px 16px;
    font-size: 0.9rem;
  }

  .option-btn input[type="radio"],
  .option-btn input[type="checkbox"] {
    width: 16px;
    height: 16px;
    margin-right: 12px;
  }

  /* 인라인 커스텀 입력 필드가 튀어나가지 않도록 조율 */
  .option-btn:has(input[type="radio"]:checked),
  .option-btn:has(input[type="checkbox"]:checked) {
    flex-wrap: wrap;
    gap: 8px;
  }

  .inline-text-input {
    margin-left: 0;
    width: 100%;
    margin-top: 8px;
    flex: none;
  }

  /* 설문지 내비게이션 버튼 */
  .survey-nav {
    display: flex;
    gap: 8px;
  }

  .btn-survey-nav {
    flex: 1;
    text-align: center;
    padding: 10px 12px !important;
    font-size: 0.8rem !important;
  }

  /* 통계 블록 수직 스택 */
  .waitlist-stats {
    flex-direction: column;
    gap: 16px;
    align-items: center;
  }

  .stat-item {
    width: 100%;
    padding: 12px 0;
  }

  .stat-item:first-child {
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  }

  /* 티저 비디오 모바일 대응 - 여백 및 크기 최적화 */
  .video-container {
    padding: 0 10px;
  }

  .video-mockup {
    aspect-ratio: 4 / 3;
    border-radius: 30px;
  }

  .video-overlay {
    padding: 24px 20px;
  }

  .play-btn {
    width: 56px;
    height: 56px;
    margin-bottom: 16px;
  }

  .video-card-title {
    font-size: 1.45rem;
    margin-bottom: 8px;
  }

  .video-card-desc {
    font-size: 0.92rem;
    padding: 0 8px;
    line-height: 1.5;
  }

  /* 모바일 히어로 목업 2D 애니메이션 대응 및 크기 최적화 */
  .hero-mockup-container {
    padding-right: 20px;
    width: 100%;
    max-width: 100%;
  }

  .hero-mockup-img {
    max-height: 340px;
    border-radius: 28px;
  }

  .hero-mockup-img:first-of-type {
    animation: float-mockup-left-mobile 6s ease-in-out infinite;
    z-index: 2;
  }

  .hero-mockup-img:last-of-type {
    animation: float-mockup-right-mobile 6s ease-in-out infinite;
    animation-delay: -3s;
    z-index: 1;
    margin-left: -40px;
    margin-top: 70px;
  }

  .mockup-glow-back {
    width: 280px;
    height: 280px;
  }

  @media (max-width: 480px) {
    :root {
      --section-gap-lg: 48px;
      --section-gap-sm: 32px;
    }

    #upcoming {
      padding-bottom: 0;
    }

    #teaser-section {
      padding-top: 32px;
    }

    .section-intro {
      margin-bottom: 24px;
    }

    .section-intro .section-title {
      font-size: 1.5rem;
      margin-bottom: 8px;
    }

    .teaser-title {
      margin-bottom: 24px;
      font-size: 1.5rem;
    }

    .upcoming-ticker-container {
      padding: 15px 0;
    }

    .upcoming-card {
      width: 270px;
      min-height: auto;
      padding: 38px 20px 20px;
      border-radius: 20px;
    }

    .upcoming-icon-large {
      width: 140px;
      height: 140px;
      margin-bottom: 16px;
    }

    .upcoming-icon-large.icon-reward {
      width: 120px;
      height: 120px;
      margin-bottom: 26px;
    }

    .upcoming-title {
      font-size: 1.15rem;
      margin-top: auto;
      margin-bottom: 16px;
    }

    .upcoming-desc {
      font-size: 0.82rem;
      line-height: 1.45;
    }

    .hero-title {
      font-size: clamp(1.2rem, 6.5vw, 1.55rem);
    }

    .hero-desc {
      font-size: 0.9rem;
      line-height: 22px;
      margin-top: 14px;
      margin-bottom: 20px;
    }

    .hero-mockup-img {
      max-height: 250px;
      border-radius: 20px;
    }

    .hero-mockup-container {
      padding-right: 15px;
    }

    .hero-mockup-img:last-of-type {
      margin-left: -25px;
      margin-top: 48px;
    }

    .mockup-glow-back {
      width: 200px;
      height: 200px;
    }

    .video-mockup {
      aspect-ratio: 1.25 / 1;
      border-radius: 24px;
    }

    .video-overlay {
      padding: 16px 12px;
    }

    .play-btn {
      width: 48px;
      height: 48px;
      margin-bottom: 12px;
    }

    .video-card-title {
      font-size: 1.25rem;
      margin-bottom: 6px;
    }

    .video-card-desc {
      font-size: 0.82rem;
      line-height: 1.4;
      padding: 0;
    }
  }

}

/* ==========================================================================
   12. Hero Mockup Image Container — 2D Float + Ambient Glow
   ========================================================================== */

/* 데스크톱: 좌측 목업 부드러운 2D 플로팅 */
@keyframes float-mockup-left {

  0%,
  100% {
    transform: rotate(-8deg) translateY(0px) translateX(0px);
  }

  50% {
    transform: rotate(-6deg) translateY(-18px) translateX(6px);
  }
}

/* 데스크톱: 우측 목업 부드러운 2D 플로팅 (엇박자) */
@keyframes float-mockup-right {

  0%,
  100% {
    transform: rotate(5deg) translateY(0px) translateX(0px);
  }

  50% {
    transform: rotate(3deg) translateY(-14px) translateX(-5px);
  }
}

/* 모바일: 좌측 목업 */
@keyframes float-mockup-left-mobile {

  0%,
  100% {
    transform: rotate(-8deg) translateY(0px);
  }

  50% {
    transform: rotate(-6deg) translateY(-12px);
  }
}

/* 모바일: 우측 목업 */
@keyframes float-mockup-right-mobile {

  0%,
  100% {
    transform: rotate(5deg) translateY(0px);
  }

  50% {
    transform: rotate(3deg) translateY(-10px);
  }
}

/* 광원 숨쉬기 애니메이션 */
@keyframes breathing-glow {

  0%,
  100% {
    transform: scale(1) rotate(0deg);
    opacity: 0.6;
  }

  50% {
    transform: scale(1.12) rotate(180deg);
    opacity: 0.9;
    filter: blur(90px);
  }
}

/* ==========================================================================
   Accessibility Styles (Skip Nav, Screen Reader Only, Focus Ring)
   ========================================================================== */

/* 스킵 네비게이션 */
.skip-nav {
  position: absolute;
  top: -100px;
  left: 0;
  background-color: var(--primary);
  color: #FFFFFF !important;
  padding: 12px 24px;
  font-weight: 700;
  z-index: 999999;
  text-decoration: none;
  border-radius: 0 0 var(--round-sm) 0;
  transition: top 0.2s ease;
  box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
}

.skip-nav:focus-visible {
  top: 0;
  outline: none;
}

/* 스크린 리더용 숨김 유틸리티 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* 전역 키보드 포커스 링 보강 */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.option-btn:focus-within {
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

/* 모달 및 설문 요소 포커스 스타일 보강 */
.melwith-modal-btn:focus-visible {
  outline: 3px solid var(--secondary) !important;
  outline-offset: 2px !important;
}

.survey-question:focus {
  outline: none;
}