/* style.css
  - 페이지/섹션별 디자인 구현 전용
  - commons.css의 토큰/유틸을 가져다 실제 UI를 여기서 구성합니다.
*/

/* ========== Hero: Rich Multi-Color Gradient Background ========== */

/* Main Hero Container */
.hero {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  display: grid;
  place-items: center;
  isolation: isolate;
  background: #0a0e27;
}

/* Multi-Layer Gradient Overlay for Rich Color Depth */
.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    /* Base linear gradient: left to right with purple, blue, pink, orange */
    linear-gradient(
      135deg,
      #2d1b5e 0%,
      #3d2878 15%,
      #2c5282 25%,
      #6b4fa1 35%,
      #b946ef 50%,
      #ec4899 65%,
      #f97316 80%,
      #ea580c 100%
    );
  
  /* Radial gradient: top-left blue/purple glow */
  background-blend-mode: multiply;
}

.hero__overlay::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle 600px at 20% 30%,
    rgba(59, 130, 246, 0.4) 0%,
    rgba(99, 102, 241, 0.2) 30%,
    transparent 70%
  );
  pointer-events: none;
  z-index: 2;
}

.hero__overlay::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    /* Bottom-right orange/red glow */
    radial-gradient(
      circle 800px at 85% 90%,
      rgba(249, 115, 22, 0.5) 0%,
      rgba(234, 88, 12, 0.3) 30%,
      transparent 60%
    ),
    /* Left-bottom cyan glow */
    radial-gradient(
      circle 400px at 15% 75%,
      rgba(34, 211, 238, 0.3) 0%,
      transparent 50%
    ),
    /* Center-top pink glow */
    radial-gradient(
      circle 500px at 50% 20%,
      rgba(236, 72, 153, 0.3) 0%,
      transparent 50%
    );
  pointer-events: none;
  z-index: 1;
}

/* Soft glow animation */
@keyframes glowPulse {
  0%, 100% {
    opacity: 0.95;
  }
  50% {
    opacity: 1;
  }
}

.hero__overlay {
  animation: glowPulse 8s ease-in-out infinite;
}

/* ========== Character Images Positioning ========== */
.hero__character {
  position: absolute;
  z-index: 2;
  max-width: none;
}

/* Left bottom character - hero-bg1 */
.hero__character--left {
  width: clamp(280px, 35vw, 500px);
  height: auto;
  bottom: -80px;
  left: -120px;
  animation: floatLeft 6s ease-in-out infinite;
  filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.3));
}

@keyframes floatLeft {
  0%, 100% {
    transform: translateY(0) rotate(-5deg);
  }
  50% {
    transform: translateY(-30px) rotate(-5deg);
  }
}

/* Right top character - hero-bg2 */
.hero__character--right {
  width: clamp(200px, 28vw, 420px);
  height: auto;
  top: -80px;
  right: -100px;
  animation: floatRight 7s ease-in-out infinite;
  filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.3));
}

@keyframes floatRight {
  0%, 100% {
    transform: translateY(0) rotate(8deg);
  }
  50% {
    transform: translateY(30px) rotate(8deg);
  }
}

/* ========== Decorative Elements ========== */
.hero__decorations {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
}

/* Base decoration style */
.hero__decoration {
  position: absolute;
  font-size: 24px;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

/* Emoji decorations */
.hero__decoration--emoji {
  font-size: clamp(20px, 4vw, 48px);
  opacity: 0.85;
  animation: floatEmoji 5s ease-in-out infinite;
}

.left-emoji {
  left: 8%;
  top: 45%;
  animation-delay: 0s;
}

.right-emoji {
  right: 5%;
  top: 55%;
  animation-delay: 1s;
  font-size: clamp(28px, 5vw, 56px);
}

@keyframes floatEmoji {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
    opacity: 0.85;
  }
  50% {
    transform: translateY(-12px) rotate(5deg);
    opacity: 1;
  }
}

/* Sparkle decorations */
.hero__decoration--sparkle {
  font-size: clamp(18px, 3vw, 36px);
  animation: sparkleFloat 4s ease-in-out infinite;
  opacity: 0.8;
}

.top-left-sparkle {
  left: 10%;
  top: 15%;
  animation-delay: 0.5s;
}

@keyframes sparkleFloat {
  0%, 100% {
    transform: translateY(0) scale(1);
    opacity: 0.8;
  }
  50% {
    transform: translateY(-8px) scale(1.2);
    opacity: 1;
  }
}

/* Star/Cube decorations */
.hero__decoration--star,
.hero__decoration--cube {
  font-size: clamp(16px, 2.5vw, 32px);
  animation: twinkleStar 3s ease-in-out infinite;
}

.right-bottom-star {
  right: 8%;
  bottom: 20%;
  animation-delay: 0.3s;
}

.top-center-cube {
  left: 50%;
  top: 10%;
  transform: translateX(-50%);
  animation-delay: 1s;
}

@keyframes twinkleStar {
  0%, 100% {
    opacity: 0.7;
    transform: rotate(0deg) scale(1);
  }
  50% {
    opacity: 1;
    transform: rotate(180deg) scale(1.1);
  }
}

/* ========== Heart Balloons ========== */
.hero__heart-balloon {
  position: absolute;
  width: clamp(40px, 8vw, 80px);
  height: clamp(40px, 8vw, 80px);
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(168, 85, 247, 0.9), rgba(139, 92, 246, 0.85));
  box-shadow: 
    inset 0 -5px 15px rgba(0, 0, 0, 0.2),
    0 8px 20px rgba(168, 85, 247, 0.4),
    0 0 30px rgba(168, 85, 247, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(20px, 4vw, 40px);
  animation: floatBalloon 4s ease-in-out infinite;
  z-index: 3;
  pointer-events: none;
}

.heart-balloon__content {
  display: block;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Heart balloon positions - Right Top */
.heart-balloon-1 {
  top: 15%;
  right: 12%;
  animation-delay: 0s;
}

.heart-balloon-2 {
  top: 22%;
  right: 5%;
  width: clamp(35px, 6vw, 65px);
  height: clamp(35px, 6vw, 65px);
  animation-delay: 0.5s;
}

.heart-balloon-3 {
  top: 12%;
  right: 22%;
  width: clamp(50px, 9vw, 90px);
  height: clamp(50px, 9vw, 90px);
  animation-delay: 1s;
}

/* Heart balloon positions - Right Middle */
.heart-balloon-4 {
  top: 55%;
  right: 8%;
  animation-delay: 0.3s;
}

.heart-balloon-5 {
  top: 65%;
  right: 16%;
  width: clamp(42px, 7vw, 75px);
  height: clamp(42px, 7vw, 75px);
  animation-delay: 0.8s;
}

.heart-balloon-6 {
  top: 48%;
  right: 22%;
  width: clamp(48px, 8vw, 85px);
  height: clamp(48px, 8vw, 85px);
  animation-delay: 1.3s;
}

@keyframes floatBalloon {
  0%, 100% {
    transform: translateY(0) rotate(0deg);
    opacity: 0.9;
  }
  50% {
    transform: translateY(-15px) rotate(-8deg);
    opacity: 1;
  }
}

/* ========== Glow Dots ========== */
.hero__glow-dot {
  position: absolute;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.8), rgba(255, 255, 255, 0.2));
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
  animation: glowBob 3s ease-in-out infinite;
}

.glow-dot-1 {
  width: 8px;
  height: 8px;
  left: 20%;
  top: 25%;
  animation-delay: 0s;
}

.glow-dot-2 {
  width: 6px;
  height: 6px;
  right: 15%;
  top: 35%;
  animation-delay: 0.7s;
}

.glow-dot-3 {
  width: 5px;
  height: 5px;
  left: 75%;
  bottom: 25%;
  animation-delay: 1.4s;
}

@keyframes glowBob {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.6;
  }
  50% {
    transform: translateY(-8px);
    opacity: 1;
  }
}

/* Hero Content */
.hero__content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding-top: 76px;
  display: grid;
  place-items: center;
  text-align: center;
}

.hero__content-inner {
  max-width: 900px;
  padding: 0 20px;
}

.hero__eyebrow {
  margin: 0 0 16px;
  font-size: 14px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.95);
  font-weight: 700;
  text-shadow: 
    0 2px 8px rgba(0, 0, 0, 0.5),
    0 4px 12px rgba(0, 0, 0, 0.4);
}

.hero__title {
  margin: 0 0 20px 0;
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.1;
  font-size: clamp(48px, 8vw, 80px);
  color: #ffffff;
  /* 강렬한 3D 텍스트 섀도우 */
  text-shadow: 
    0 2px 4px rgba(0, 0, 0, 0.5),
    0 4px 8px rgba(0, 0, 0, 0.6),
    0 8px 16px rgba(0, 0, 0, 0.7),
    0 12px 20px rgba(0, 0, 0, 0.6),
    0 -1px 0 rgba(0, 0, 0, 0.2);
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.5));
  animation: titleGlow 4s ease-in-out infinite;
}

@keyframes titleGlow {
  0%, 100% {
    text-shadow: 
      0 2px 4px rgba(0, 0, 0, 0.5),
      0 4px 8px rgba(0, 0, 0, 0.6),
      0 8px 16px rgba(0, 0, 0, 0.7),
      0 12px 20px rgba(0, 0, 0, 0.6),
      0 -1px 0 rgba(0, 0, 0, 0.2);
  }
  50% {
    text-shadow: 
      0 2px 4px rgba(0, 0, 0, 0.5),
      0 4px 8px rgba(0, 0, 0, 0.6),
      0 8px 16px rgba(0, 0, 0, 0.7),
      0 12px 20px rgba(0, 0, 0, 0.8),
      0 -1px 0 rgba(0, 0, 0, 0.2);
  }
}

.hero__subtitle {
  margin: 0 auto 28px;
  max-width: 65ch;
  font-size: clamp(16px, 1.5vw, 20px);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.95);
  font-weight: 600;
  text-shadow: 
    0 2px 8px rgba(0, 0, 0, 0.5),
    0 4px 12px rgba(0, 0, 0, 0.4);
}

/* Meta Stats */
.hero__meta {
  margin: 0 0 32px 0;
  display: inline-flex;
  align-items: center;
  gap: 16px;
  padding: 12px 20px;
  border: 2px solid rgba(255, 255, 255, 0.25);
  border-radius: 50px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  flex-wrap: wrap;
  justify-content: center;
}

.hero__meta-item {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
  font-weight: 600;
}

.hero__meta-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.35);
}

/* CTA Buttons */
.hero__buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.hero__buttons .btn {
  padding: 16px 40px;
  font-size: 16px;
  font-weight: 700;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: all 300ms cubic-bezier(0.2, 0.8, 0.2, 1);
  letter-spacing: 0.5px;
}

/* Primary Button - Strong Gradient */
.hero__buttons .btn--primary-gradient {
  background: linear-gradient(
    135deg,
    #667eea 0%,
    #764ba2 30%,
    #ec4899 70%,
    #f97316 100%
  );
  color: white;
  box-shadow: 
    0 8px 20px rgba(102, 126, 234, 0.4),
    0 4px 12px rgba(236, 72, 153, 0.3),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
}

.hero__buttons .btn--primary-gradient::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.2) 0%,
    transparent 50%,
    rgba(0, 0, 0, 0.1) 100%
  );
  pointer-events: none;
}

.hero__buttons .btn--primary-gradient:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow: 
    0 12px 28px rgba(102, 126, 234, 0.6),
    0 6px 16px rgba(236, 72, 153, 0.4),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.hero__buttons .btn--primary-gradient:active {
  transform: translateY(-2px) scale(1.02);
}

/* Secondary Button - Subtle Glow */
.hero__buttons .btn--secondary-glow {
  background: transparent;
  color: white;
  border: 2px solid rgba(255, 255, 255, 0.6);
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}

.hero__buttons .btn--secondary-glow::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.1) 0%,
    transparent 50%,
    rgba(0, 0, 0, 0.05) 100%
  );
  pointer-events: none;
}

.hero__buttons .btn--secondary-glow:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: white;
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 12px 28px rgba(255, 255, 255, 0.2);
}

.hero__buttons .btn--secondary-glow:active {
  transform: translateY(-2px) scale(1.02);
}

/* Keep old button classes for compatibility */

/* Scroll Indicator */
.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  border-radius: 50px;
  border: 2px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: rgba(255, 255, 255, 0.75);
  animation: bounce 2s infinite;
}

.hero__scroll-label {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
}

.hero__scroll-line {
  width: 24px;
  height: 1px;
  background: rgba(255, 255, 255, 0.4);
  transform-origin: left center;
  animation: scrollLine 1.8s ease-in-out infinite;
}

@keyframes scrollLine {
  0%, 100% {
    transform: scaleX(0.6);
    opacity: 0.6;
  }
  50% {
    transform: scaleX(1);
    opacity: 1;
  }
}

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

/* ========== Header / Navigation ========== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: linear-gradient(180deg, rgba(10, 14, 39, 0.9) 0%, rgba(10, 14, 39, 0.85) 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

.site-header__inner {
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Logo */
.site-logo {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: rgba(255, 255, 255, 0.95);
  padding: 10px 0;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-logo:hover {
  transform: scale(1.05);
  color: white;
}

/* Navigation Menu */
.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.site-nav-group {
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
}

.site-nav__link {
  position: relative;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: rgba(255, 255, 255, 0.9);
  padding: 10px 0;
  opacity: 1;
  transition: opacity var(--transition-fast), transform var(--transition-fast), color var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
  display: inline-block;
}

.site-nav__link--sub {
  font-size: 12px;
  opacity: 0.7;
  font-weight: 500;
  letter-spacing: 0px;
  padding-left: 8px;
}

.site-nav__link--sub:hover,
.site-nav__link--sub:focus-visible {
  opacity: 1;
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  opacity: 1;
  transform: translateY(-2px);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, #667eea, #ec4899);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--transition-fast);
}

.site-nav__link:hover::after,
.site-nav__link:focus-visible::after {
  transform: scaleX(1);
}

/* Search Bar */
.search-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: all var(--transition-fast);
}

.search-wrapper:focus-within {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.35);
}

.search-input {
  flex: 1;
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.9);
  font-size: 13px;
  outline: none;
  min-width: 140px;
}

.search-input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.search-btn {
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
  cursor: pointer;
  padding: 4px 8px;
  transition: transform var(--transition-fast);
}

.search-btn:hover {
  transform: scale(1.15);
}

/* Theme Toggle */
.theme-toggle {
  background: rgba(255, 255, 255, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.85);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  transform: rotate(20deg);
}

.theme-icon {
  display: inline-block;
  transition: transform 600ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.theme-toggle:active .theme-icon {
  transform: rotate(360deg);
}

/* Mobile Menu Toggle */
.nav-toggle {
  display: none;
  border: 2px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.85);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  flex-direction: column;
  transition: all var(--transition-fast);
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.35);
}

.nav-toggle__line {
  width: 16px;
  height: 2px;
  background: rgba(255, 255, 255, 0.85);
  border-radius: 999px;
  transition: all var(--transition-fast);
}

/* Mobile Responsive */
@media (max-width: 1024px) {
  .site-header__inner {
    gap: 16px;
  }

  .site-nav {
    gap: 16px;
    flex-wrap: nowrap;
  }

  .site-nav__link {
    font-size: 13px;
    white-space: nowrap;
  }

  .search-wrapper {
    display: none;
  }
}

@media (max-width: 768px) {
  .site-header__inner {
    height: 64px;
    gap: 12px;
  }

  .site-logo {
    font-size: 16px;
  }

  .site-nav {
    position: fixed;
    top: 64px;
    left: 16px;
    right: 16px;
    flex-direction: column;
    gap: 12px;
    padding: 16px;
    border-radius: 16px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
  }

  .site-nav[data-open="true"] {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .site-nav__link {
    padding: 12px 12px;
    width: 100%;
    text-align: left;
    font-size: 15px;
    white-space: nowrap;
  }

  .site-nav-group {
    flex-direction: column;
    gap: 0;
    width: 100%;
  }

  .site-nav-group .site-nav__link {
    width: 100%;
  }

  .site-nav__link--sub {
    padding-left: 28px;
    font-size: 13px;
    opacity: 0.8;
  }

  .site-nav__link::after {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] .nav-toggle__line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }

  .hero {
    padding-top: 64px;
  }

  .hero__content {
    padding-top: 0;
  }

  .hero__buttons {
    flex-direction: column;
    width: 100%;
    padding: 0 20px;
    gap: 12px;
  }

  .hero__buttons .btn {
    width: 100%;
    max-width: 300px;
  }

  /* 모바일에서 캐릭터 크기 조정 */
  .hero__character--left {
    width: clamp(180px, 30vw, 300px);
    bottom: -60px;
    left: -80px;
  }

  .hero__character--right {
    width: clamp(120px, 20vw, 250px);
    top: -60px;
    right: -60px;
  }

  /* 모바일에서 장식 요소 조정 */
  .hero__decoration--emoji {
    font-size: clamp(16px, 3vw, 36px);
  }

  .left-emoji {
    left: 5%;
    top: 50%;
  }

  .right-emoji {
    right: 3%;
    top: 60%;
  }

  /* 하트 풍선 모바일 조정 */
  .hero__heart-balloon {
    width: clamp(32px, 6vw, 60px);
    height: clamp(32px, 6vw, 60px);
    font-size: clamp(16px, 3vw, 32px);
  }

  .heart-balloon-1 {
    top: 18%;
    right: 8%;
  }

  .heart-balloon-2 {
    top: 25%;
    right: 2%;
  }

  .heart-balloon-3 {
    top: 14%;
    right: 16%;
  }

  .heart-balloon-4 {
    top: 58%;
    right: 5%;
  }

  .heart-balloon-5 {
    top: 66%;
    right: 12%;
  }

  .heart-balloon-6 {
    top: 52%;
    right: 18%;
  }
}

/* ========== Animations ========== */

/* Fade in on load */
.hero__eyebrow,
.hero__title,
.hero__subtitle,
.hero__meta,
.hero__buttons {
  animation: fadeInUp 800ms cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.hero__eyebrow {
  animation-delay: 100ms;
}

.hero__title {
  animation-delay: 200ms;
}

.hero__subtitle {
  animation-delay: 300ms;
}

.hero__meta {
  animation-delay: 400ms;
}

.hero__buttons {
  animation-delay: 500ms;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translate3d(0, 40px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .hero__scroll-line {
    animation: none;
  }

  .hero {
    animation: none;
  }
}

/* ========== Features Section ========== */
.features {
  padding: 80px 0;
  background: linear-gradient(180deg, #f8f8fa 0%, #ffffff 100%);
  position: relative;
}

.features__header {
  text-align: center;
  margin-bottom: 60px;
}

.features__title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #0a0e27;
  margin-bottom: 16px;
}

.features__subtitle {
  font-size: 1.125rem;
  color: #666;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

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

/* Feature Card */
.feature-card {
  background: white;
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  border: 2px solid #f0f0f0;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 50%, #ec4899 100%);
  transition: left 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-12px);
  box-shadow: 0 16px 32px rgba(185, 70, 239, 0.15);
  border-color: #b946ef;
}

.feature-card:hover::before {
  left: 0;
}

.feature-card__icon {
  font-size: 3rem;
  margin-bottom: 16px;
  display: inline-block;
  transition: transform 0.3s ease;
  animation: iconBounce 2s ease-in-out infinite;
}

.feature-card:hover .feature-card__icon {
  transform: scale(1.2) rotateZ(10deg);
  animation: none;
}

@keyframes iconBounce {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

.feature-card__title {
  font-size: 1.25rem;
  font-weight: 600;
  color: #0a0e27;
  margin-bottom: 12px;
}

.feature-card__description {
  font-size: 0.95rem;
  color: #666;
  line-height: 1.6;
  margin-bottom: 20px;
}

.feature-card__link {
  display: inline-block;
  color: #b946ef;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  position: relative;
  padding: 4px 0;
}

.feature-card__link::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #b946ef, #ec4899);
  transition: width 0.3s ease;
}

.feature-card__link:hover {
  color: #ec4899;
  transform: translateX(4px);
}

.feature-card__link:hover::after {
  width: 100%;
}

/* ========== Most Used Section ========== */
.most-used {
  padding: 80px 0;
  background: linear-gradient(180deg, white 0%, #f8f8fa 100%);
  position: relative;
  overflow: hidden;
}

.most-used::before {
  content: "";
  position: absolute;
  top: 0;
  right: -200px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(236, 72, 153, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.most-used::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: -200px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(102, 126, 234, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.most-used__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 48px;
}

.most-used__title {
  font-size: 2rem;
  font-weight: 700;
  color: #0a0e27;
}

.most-used__link {
  color: #b946ef;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}

.most-used__link:hover {
  color: #ec4899;
}

.emoji-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  gap: 12px;
  max-width: 100%;
}

.emoji-item {
  background: #f8f8fa;
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
}

.emoji-item:hover {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 30%, #ec4899 70%, #f97316 100%);
  transform: scale(1.05);
}

.emoji-item__emoji {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 8px;
}

.emoji-item__name {
  font-size: 0.85rem;
  color: #666;
  margin: 0;
}

.emoji-item:hover .emoji-item__name {
  color: white;
}

/* ========== Generations Section ========== */
.generations {
  padding: 80px 0;
  background: linear-gradient(180deg, #ffffff 0%, #f0e6ff 50%, #ffe6f0 100%);
  position: relative;
}

.generations__header {
  text-align: center;
  margin-bottom: 60px;
}

.generations__title {
  font-size: 2rem;
  font-weight: 700;
  color: #0a0e27;
}

.generations__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
}

.generation-card {
  background: white;
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  border: 2px solid #f0f0f0;
  position: relative;
  overflow: hidden;
}

.generation-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 50%, #ec4899 100%);
}

.generation-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(185, 70, 239, 0.15);
  border-color: #b946ef;
}

.generation-card__label {
  font-size: 0.95rem;
  font-weight: 700;
  color: #0a0e27;
  margin-bottom: 20px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #ec4899 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.generation-card__emojis {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.generation-card__emojis span {
  font-size: 2rem;
  transition: transform 0.3s ease;
  display: inline-block;
}

.generation-card:hover .generation-card__emojis span {
  animation: emojiPop 0.6s ease;
}

@keyframes emojiPop {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.3);
  }
  100% {
    transform: scale(1.2);
  }
}

/* ========== CTA Section ========== */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 30%, #ec4899 70%, #f97316 100%);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  pointer-events: none;
}

.cta-section__content {
  text-align: center;
  position: relative;
  z-index: 2;
}

.cta-section__title {
  font-size: 2.5rem;
  font-weight: 700;
  color: white;
  margin-bottom: 16px;
}

.cta-section__description {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 40px;
}

.cta-section__buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* ========== Footer ========== */
.site-footer {
  background: #0a0e27;
  color: white;
  padding: 60px 0 20px;
}

.site-footer__content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.site-footer__section {
  display: flex;
  flex-direction: column;
}

.site-footer__logo {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.site-footer__description {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.6;
  margin: 0;
}

.site-footer__heading {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: white;
}

.site-footer__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.site-footer__list a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

.site-footer__list a:hover {
  color: #b946ef;
}

.site-footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

.site-footer__bottom p {
  margin: 8px 0;
}

/* ========== Statistics Section ========== */
.stats-section {
  padding: 80px 0;
  background: linear-gradient(180deg, #f8f8fa 0%, #ffffff 100%);
}

.stats-header {
  text-align: center;
  margin-bottom: 60px;
}

.stats-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #0a0e27;
  margin-bottom: 12px;
}

.stats-subtitle {
  font-size: 1.125rem;
  color: #666;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}

.stat-card {
  background: white;
  border: 2px solid #f0f0f0;
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  transition: all 0.3s ease;
}

.stat-card:hover {
  border-color: #b946ef;
  box-shadow: 0 12px 24px rgba(185, 70, 239, 0.15);
  transform: translateY(-8px);
}

.stat-card__number {
  font-size: 2.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 30%, #ec4899 70%, #f97316 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.stat-card__label {
  font-size: 1.25rem;
  font-weight: 700;
  color: #0a0e27;
  margin-bottom: 4px;
}

.stat-card__description {
  font-size: 0.9rem;
  color: #666;
}

/* ========== Combinations Section ========== */
.combinations-section {
  padding: 80px 0;
  background: linear-gradient(135deg, #f0e6ff 0%, #ffe6f0 50%, #fff0e6 100%);
  position: relative;
  overflow: hidden;
}

.combinations-section::before {
  content: "";
  position: absolute;
  top: -200px;
  right: -200px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(185, 70, 239, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.combinations-section::after {
  content: "";
  position: absolute;
  bottom: -200px;
  left: -200px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.combinations-header {
  text-align: center;
  margin-bottom: 60px;
  position: relative;
  z-index: 2;
}

.combinations-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #0a0e27;
  margin-bottom: 12px;
}

.combinations-subtitle {
  font-size: 1.125rem;
  color: #666;
}

.combinations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  position: relative;
  z-index: 2;
}

.combination-card {
  background: white;
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.combination-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 12px 32px rgba(185, 70, 239, 0.2);
}

.combination-card__preview {
  font-size: 2.5rem;
  margin-bottom: 16px;
  letter-spacing: 8px;
  display: inline-block;
  padding: 16px;
  background: linear-gradient(135deg, #667eea15 0%, #ec489915 100%);
  border-radius: 12px;
  width: 100%;
}

.combination-card__title {
  font-size: 1.125rem;
  font-weight: 700;
  color: #0a0e27;
  margin-bottom: 8px;
}

.combination-card__description {
  font-size: 0.9rem;
  color: #666;
  margin-bottom: 16px;
}

.combination-card__copy-btn {
  padding: 10px 20px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 30%, #ec4899 70%, #f97316 100%);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.combination-card__copy-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

.combination-card__copy-btn:active {
  transform: scale(0.98);
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .features__title {
    font-size: 1.75rem;
  }

  .most-used__title {
    font-size: 1.5rem;
  }

  .most-used__header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .cta-section__title {
    font-size: 1.75rem;
  }

  .cta-section__buttons {
    flex-direction: column;
  }

  .cta-section__buttons .btn {
    width: 100%;
  }

  .emoji-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .generations__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ========== SEO Content Section ========== */
.seo-content {
  padding: 80px 20px;
  background: linear-gradient(180deg, transparent 0%, rgba(102, 126, 234, 0.03) 100%);
}

.seo-content__title {
  font-size: 2.2rem;
  font-weight: 800;
  color: #333;
  text-align: center;
  margin: 0 0 50px 0;
  line-height: 1.3;
}

.seo-content__summary {
  max-width: 900px;
  margin: 0 auto 60px;
  padding: 30px;
  background: white;
  border-radius: 12px;
  border-left: 4px solid #667eea;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.seo-content__summary p {
  font-size: 1rem;
  line-height: 1.8;
  color: #555;
  margin: 0;
  letter-spacing: 0.3px;
}

.seo-content__nav {
  max-width: 900px;
  margin: 0 auto 60px;
  padding: 30px;
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
  border-radius: 12px;
  border: 1px solid rgba(102, 126, 234, 0.1);
}

.seo-content__nav h2 {
  font-size: 1.3rem;
  font-weight: 700;
  color: #667eea;
  margin: 0 0 20px 0;
}

.seo-content__nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.seo-content__nav li {
  margin-bottom: 12px;
}

.seo-content__nav li:last-child {
  margin-bottom: 0;
}

.seo-content__nav a {
  color: #667eea;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.seo-content__nav a:hover {
  color: #764ba2;
  text-decoration: underline;
}

.seo-content__section {
  max-width: 900px;
  margin: 0 auto 50px;
  scroll-margin-top: 100px;
}

.seo-content__section h2 {
  font-size: 1.6rem;
  font-weight: 700;
  color: #333;
  margin: 0 0 25px 0;
  padding-bottom: 12px;
  border-bottom: 3px solid #667eea;
}

.seo-content__article {
  background: white;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  margin-bottom: 30px;
}

.seo-content__article p {
  font-size: 1rem;
  line-height: 1.9;
  color: #555;
  margin: 0 0 25px 0;
  letter-spacing: 0.3px;
}

.seo-content__article p:last-of-type {
  margin-bottom: 0;
}

.seo-content__article ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.seo-content__article li {
  padding: 12px 0 12px 30px;
  position: relative;
  color: #555;
  font-size: 0.95rem;
  line-height: 1.7;
  border-bottom: 1px solid #f0f0f0;
}

.seo-content__article li:last-child {
  border-bottom: none;
}

.seo-content__article li:before {
  content: "🔹";
  position: absolute;
  left: 0;
  color: #667eea;
}

script[type="application/ld+json"] {
  display: none;
}

/* Dark Mode for SEO Content */
[data-theme="dark"] .seo-content__title {
  color: #e0e0e0;
}

[data-theme="dark"] .seo-content__summary {
  background: #2a2a3e;
  border-left-color: #667eea;
}

[data-theme="dark"] .seo-content__summary p {
  color: #c0c0c0;
}

[data-theme="dark"] .seo-content__nav {
  background: rgba(102, 126, 234, 0.08);
  border-color: rgba(102, 126, 234, 0.15);
}

[data-theme="dark"] .seo-content__nav h2 {
  color: #a8c5ff;
}

[data-theme="dark"] .seo-content__nav a {
  color: #a8c5ff;
}

[data-theme="dark"] .seo-content__nav a:hover {
  color: #c5d9ff;
}

[data-theme="dark"] .seo-content__section h2 {
  color: #e0e0e0;
  border-bottom-color: #667eea;
}

[data-theme="dark"] .seo-content__article {
  background: #333349;
}

[data-theme="dark"] .seo-content__article p {
  color: #c0c0c0;
}

[data-theme="dark"] .seo-content__article li {
  color: #c0c0c0;
  border-bottom-color: #3a3a4e;
}

/* 모바일 반응형 */
@media (max-width: 768px) {
  .seo-content {
    padding: 60px 15px;
  }

  .seo-content__title {
    font-size: 1.6rem;
    margin-bottom: 40px;
  }

  .seo-content__summary,
  .seo-content__nav,
  .seo-content__article {
    padding: 20px;
  }

  .seo-content__section h2 {
    font-size: 1.3rem;
    margin-bottom: 20px;
  }

  .seo-content__article li {
    padding: 10px 0 10px 25px;
    font-size: 0.9rem;
  }
}