/* =============================================
   필라테스이즈굿 - Pilates is Good.
   Clean, Professional, Orange-accent
   ============================================= */

/* --- CSS Variables --- */
:root {
  --color-bg: #ffffff;
  --color-bg-alt: #faf9f7;
  --color-bg-dark: #1a1a1a;
  --color-bg-dark-alt: #222222;
  --color-surface: #f5f3f0;
  --color-accent: #fe5315;
  --color-accent-light: #ff7a4d;
  --color-accent-dark: #e04510;
  --color-text: #333333;
  --color-text-light: #666666;
  --color-text-muted: #999999;
  --color-white: #ffffff;
  --color-black: #1a1a1a;
  --color-border: #e8e6e3;
  --font-sans: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
  --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.1);
  --radius: 12px;
  --radius-lg: 20px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

section {
  padding: 120px 0;
  position: relative;
}

/* --- Preloader --- */
#preloader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

#preloader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader {
  text-align: center;
}

.loader-text {
  font-family: var(--font-sans);
  font-size: 2rem;
  font-weight: 900;
  color: var(--color-white);
  display: block;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
  animation: pulse 1.5s ease-in-out infinite;
}

.loader-bar {
  width: 120px;
  height: 2px;
  background: rgba(255, 255, 255, 0.3);
  margin: 0 auto;
  position: relative;
  overflow: hidden;
  border-radius: 2px;
}

.loader-bar::after {
  content: '';
  position: absolute;
  left: -50%;
  width: 50%;
  height: 100%;
  background: var(--color-white);
  animation: loading 1s ease-in-out infinite;
}

@keyframes loading {
  0% { left: -50%; }
  100% { left: 100%; }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* --- Navigation --- */
#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: var(--transition);
}

#navbar.scrolled {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  box-shadow: 0 1px 20px rgba(0, 0, 0, 0.06);
}

#navbar.scrolled .logo-main,
#navbar.scrolled .nav-links a {
  color: var(--color-black);
}

#navbar.scrolled .logo-sub {
  color: var(--color-accent);
}

#navbar.scrolled .nav-toggle span {
  background: var(--color-black);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.logo-sub {
  font-size: 0.6rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
  font-weight: 300;
  transition: var(--transition);
}

.logo-main {
  font-family: var(--font-sans);
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--color-white);
  letter-spacing: -0.5px;
  transition: var(--transition);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.88rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.8);
  letter-spacing: 0.5px;
  position: relative;
  transition: var(--transition);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--color-white);
}

#navbar.scrolled .nav-links a:hover {
  color: var(--color-accent);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  background: var(--color-accent) !important;
  color: var(--color-white) !important;
  padding: 10px 24px !important;
  border-radius: 30px;
  font-weight: 600 !important;
}

.nav-cta:hover {
  background: var(--color-accent-dark) !important;
  transform: translateY(-1px);
}

.nav-cta::after {
  display: none !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-white);
  transition: var(--transition);
  display: block;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(26, 26, 26, 0.98);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

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

.mobile-links {
  list-style: none;
  text-align: center;
}

.mobile-links li {
  margin: 24px 0;
}

.mobile-links a {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-white);
  transition: var(--transition);
}

.mobile-links a:hover {
  color: var(--color-accent);
}

/* --- Hero Section --- */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 0;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(0, 0, 0, 0.5) 0%,
    rgba(0, 0, 0, 0.3) 50%,
    rgba(0, 0, 0, 0.6) 100%
  );
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
}

.hero-badge {
  display: inline-block;
  padding: 8px 24px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 2px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 32px;
}

.hero-content h1 {
  font-family: var(--font-sans);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 24px;
}

.hero-line {
  display: block;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  color: var(--color-white);
  letter-spacing: -1px;
}

.hero-line.accent {
  color: var(--color-accent);
}

.hero-desc {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.8;
  margin-bottom: 48px;
  font-weight: 300;
}

.hero-text-block {
  margin-bottom: 48px;
}

.hero-paragraph {
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.85);
  line-height: 2;
  font-weight: 300;
  margin-bottom: 24px;
}

.hero-paragraph:last-child {
  margin-bottom: 0;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 36px;
  border-radius: 30px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  transition: var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(254, 83, 21, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
  background: var(--color-white);
  color: var(--color-black);
  border-color: var(--color-white);
}

.btn-outline-dark {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
  padding: 12px 28px;
  font-size: 0.9rem;
}

.btn-outline-dark:hover {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.btn.full {
  width: 100%;
}

/* Hero Scroll Indicator */
.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: rgba(255, 255, 255, 0.5);
}

.hero-scroll span {
  font-size: 0.7rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  display: block;
  margin-bottom: 8px;
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: rgba(255, 255, 255, 0.2);
  margin: 0 auto;
  position: relative;
  overflow: hidden;
}

.scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  width: 100%;
  height: 50%;
  background: var(--color-accent);
  animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
  0% { top: -50%; }
  100% { top: 100%; }
}

/* --- Section Common --- */
.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.section-tag.light {
  color: var(--color-accent-light);
}

.section-title {
  font-family: var(--font-sans);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 900;
  color: var(--color-black);
  line-height: 1.3;
  letter-spacing: -0.5px;
}

.section-title .accent {
  color: var(--color-accent);
}

.section-title.light {
  color: var(--color-white);
}

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

.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-light);
  margin-top: 16px;
}

/* --- About Section --- */
#about {
  background: var(--color-bg);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-image {
  position: relative;
}

.about-img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  aspect-ratio: 3 / 4;
}

.about-content .section-title {
  margin-bottom: 8px;
}

.about-divider {
  margin: 20px 0 24px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.divider-icon {
  color: var(--color-accent);
  font-size: 0.6rem;
}

.about-text {
  font-size: 1rem;
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 36px;
  padding-top: 36px;
  border-top: 1px solid var(--color-border);
}

.feature {
  text-align: center;
}

.feature-icon {
  font-size: 1.5rem;
  margin-bottom: 10px;
  color: var(--color-accent);
}

.feature h4 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--color-black);
}

.feature p {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* --- Marquee --- */
.marquee-section {
  background: var(--color-accent);
  padding: 18px 0;
  overflow: hidden;
}

.marquee-track {
  display: flex;
  animation: marquee 30s linear infinite;
  white-space: nowrap;
}

.marquee-track span {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  font-style: italic;
  color: var(--color-white);
  letter-spacing: 2px;
  padding-right: 60px;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* --- Program Section --- */
#program {
  background: var(--color-bg-alt);
}

.program-grid {
  display: flex;
  justify-content: center;
  gap: 32px;
}

.program-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  position: relative;
  transition: var(--transition);
  border: 1px solid var(--color-border);
  width: 100%;
  max-width: 400px;
}

.program-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.program-card.featured {
  border: 2px solid var(--color-accent);
  transform: scale(1.03);
}

.program-card.featured:hover {
  transform: scale(1.03) translateY(-8px);
}

.program-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--color-text-muted);
  margin-bottom: 20px;
}

.program-badge.accent {
  color: var(--color-accent);
}

.program-card h3 {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--color-black);
  margin-bottom: 12px;
}

.program-desc {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.7;
  margin-bottom: 24px;
}

.program-price {
  margin-bottom: 28px;
}

.program-price .price {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--color-black);
  letter-spacing: -1px;
}

.program-price .won {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--color-text-light);
}

.program-price .price-label {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-light);
  display: block;
  padding: 16px 0;
}

.program-includes {
  list-style: none;
  margin-bottom: 32px;
  text-align: left;
}

.program-includes li {
  font-size: 0.9rem;
  color: var(--color-text-light);
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
  padding-left: 20px;
  position: relative;
}

.program-includes li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

/* --- Program Keywords --- */
.program-keywords {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 48px;
}

.keyword-tag {
  display: inline-block;
  padding: 8px 20px;
  border: 1px solid var(--color-border);
  border-radius: 30px;
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--color-text-light);
  background: var(--color-bg-alt);
  transition: var(--transition);
}

.keyword-tag:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: rgba(254, 83, 21, 0.05);
}

/* --- Parallax Quote --- */
.parallax-quote {
  position: relative;
  padding: 140px 0;
  background: var(--color-bg-dark);
  overflow: hidden;
}

.parallax-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  opacity: 0.1;
}

.parallax-quote blockquote {
  text-align: center;
  position: relative;
  z-index: 1;
}

.quote-mark {
  font-family: var(--font-display);
  font-size: 6rem;
  color: var(--color-accent);
  line-height: 0.5;
  display: block;
  margin-bottom: 20px;
  opacity: 0.5;
}

.parallax-quote p {
  font-family: var(--font-sans);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 300;
  color: var(--color-white);
  line-height: 1.6;
  letter-spacing: -0.5px;
}

.parallax-quote cite {
  display: block;
  margin-top: 28px;
  font-style: normal;
  font-size: 0.9rem;
  color: var(--color-accent);
  letter-spacing: 2px;
}

/* --- Instructor Section --- */
#instructor {
  background: var(--color-bg);
}

.instructor-grid {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: 80px;
  align-items: center;
}

.instructor-image {
  position: relative;
}

.instructor-image img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.instructor-content h3 {
  font-size: 2rem;
  font-weight: 900;
  color: var(--color-black);
  margin-bottom: 8px;
}

.title-en {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-muted);
  margin-left: 8px;
}

.instructor-role {
  font-size: 1rem;
  color: var(--color-accent);
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.instructor-divider {
  width: 40px;
  height: 3px;
  background: var(--color-accent);
  margin-bottom: 24px;
  border-radius: 2px;
}

.instructor-text {
  font-size: 1.05rem;
  color: var(--color-text-light);
  line-height: 1.9;
  margin-bottom: 32px;
}

.instructor-certs {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.cert-section-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 4px;
  letter-spacing: 0.5px;
}

.cert-more {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-style: italic;
  margin-top: 8px;
}

.cert-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--color-text);
}

.cert-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  flex-shrink: 0;
}

/* --- Studio Strengths --- */
#studio {
  background: var(--color-bg-alt);
}

.strengths-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.strength-card {
  background: var(--color-white);
  padding: 40px 32px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.strength-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-accent);
}

.strength-num {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--color-accent);
  opacity: 0.3;
  margin-bottom: 16px;
  line-height: 1;
}

.strength-card:hover .strength-num {
  opacity: 1;
}

.strength-card h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 12px;
}

.strength-card p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* --- Lesson Section --- */
#lesson {
  background: var(--color-bg-alt);
}

.lesson-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}

.lesson-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.lesson-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.lesson-image {
  overflow: hidden;
  aspect-ratio: 3 / 4;
}

.lesson-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.lesson-card:hover .lesson-image img {
  transform: scale(1.05);
}

.lesson-caption {
  padding: 28px 32px;
}

.lesson-caption h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 8px;
}

.lesson-caption p {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* --- Gallery Section --- */
#gallery {
  background: var(--color-bg);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 1;
}

.gallery-item.gallery-large {
  grid-column: span 2;
  aspect-ratio: 2 / 1;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.gallery-item:hover img {
  transform: scale(1.08);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.6) 100%);
  display: flex;
  align-items: flex-end;
  padding: 20px;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-overlay span {
  color: var(--color-white);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* --- FAQ Section --- */
#faq {
  background: var(--color-bg);
  padding: 100px 0;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-black);
  text-align: left;
  transition: var(--transition);
}

.faq-question:hover {
  color: var(--color-accent);
}

.faq-icon {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--color-accent);
  transition: var(--transition);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
  max-height: 200px;
  padding-bottom: 24px;
}

.faq-answer p {
  font-size: 0.95rem;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* --- Location Section --- */
#location {
  background: var(--color-bg-alt);
}

.location-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: stretch;
}

.location-map {
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 400px;
  box-shadow: var(--shadow);
}

.map-embed {
  width: 100%;
  height: 100%;
  min-height: 400px;
  background: var(--color-surface);
}

.map-embed iframe {
  width: 100%;
  height: 100%;
  min-height: 400px;
}

.info-card {
  background: var(--color-white);
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  height: 100%;
}

.info-item {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.info-item:last-child {
  border-bottom: none;
}

.info-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
  width: 32px;
  text-align: center;
}

.info-item h4 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-black);
  margin-bottom: 4px;
}

.info-item p {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

.info-item p.sub {
  font-size: 0.8rem;
  color: var(--color-accent);
  margin-top: 2px;
}

.info-item a {
  color: var(--color-accent);
  font-weight: 600;
}

/* --- Contact Section --- */
#contact {
  background: var(--color-bg-dark);
  color: var(--color-white);
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.8;
  margin-top: 20px;
  margin-bottom: 32px;
}

.contact-phone {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--color-white);
  margin-bottom: 24px;
  transition: var(--transition);
}

.contact-phone:hover {
  color: var(--color-accent);
}

.phone-icon {
  font-size: 1.5rem;
}

.contact-links {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
}

.contact-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 30px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: var(--transition);
}

.contact-link-btn.kakao {
  background: #FEE500;
  color: #3C1E1E;
}

.contact-link-btn.kakao:hover {
  background: #f0d800;
  transform: translateY(-2px);
}

.contact-link-btn.naver {
  background: #03C75A;
  color: var(--color-white);
}

.contact-link-btn.naver:hover {
  background: #02b350;
  transform: translateY(-2px);
}

.contact-sns {
  display: flex;
  gap: 16px;
}

.contact-sns a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.7);
  transition: var(--transition);
}

.contact-sns a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
}

/* Contact Info Box */
.contact-info-box {
  background: var(--color-bg-dark-alt);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.contact-info-box h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 28px;
}

.info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 0.95rem;
}

.info-label {
  color: rgba(255, 255, 255, 0.5);
  font-weight: 400;
}

.info-row span:last-child {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
}

.info-highlight {
  color: var(--color-accent) !important;
  font-weight: 700 !important;
  font-size: 1.1rem;
}

.info-divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
  margin: 8px 0;
}

.info-note {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 20px;
}

/* --- Footer --- */
footer {
  background: var(--color-black);
  padding: 48px 0;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 24px;
}

.footer-logo {
  font-family: var(--font-sans);
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--color-white);
}

.footer-brand p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 4px;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-links a:hover {
  color: var(--color-accent);
}

.footer-bottom {
  text-align: center;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.35);
  line-height: 1.8;
}

.footer-bottom .copyright {
  margin-top: 8px;
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.2);
}

/* --- Back to Top --- */
#backToTop {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-white);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 100;
  box-shadow: 0 4px 15px rgba(254, 83, 21, 0.3);
}

#backToTop.visible {
  opacity: 1;
  visibility: visible;
}

#backToTop:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(254, 83, 21, 0.4);
}

/* --- AOS Animations --- */
[data-aos] {
  opacity: 0;
  transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-aos="fade-up"] {
  transform: translateY(40px);
}

[data-aos="fade-down"] {
  transform: translateY(-40px);
}

[data-aos="fade-right"] {
  transform: translateX(-40px);
}

[data-aos="fade-left"] {
  transform: translateX(40px);
}

[data-aos="zoom-in"] {
  transform: scale(0.9);
}

[data-aos].aos-animate {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1);
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .about-grid,
  .instructor-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .instructor-image {
    max-width: 350px;
    margin: 0 auto;
  }

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

  .lesson-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .lesson-image {
    aspect-ratio: 4 / 5;
  }

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

  .gallery-item.gallery-large {
    grid-column: span 2;
  }

  .program-card.featured {
    transform: scale(1);
  }

  .program-card.featured:hover {
    transform: translateY(-8px);
  }

  .location-grid,
  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  section {
    padding: 80px 0;
  }

  .nav-links {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .hero-line {
    font-size: 2.2rem;
  }

  .hero-desc br {
    display: none;
  }

  .hero-text-block {
    margin-bottom: 32px;
  }

  .hero-paragraph {
    font-size: 0.92rem;
    line-height: 1.85;
    margin-bottom: 16px;
  }

  .hero-badge {
    margin-bottom: 20px;
  }

  .hero-scroll {
    display: none;
  }

  .about-features {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .feature {
    display: flex;
    align-items: center;
    gap: 12px;
    text-align: left;
  }

  .feature-icon {
    margin-bottom: 0;
    flex-shrink: 0;
  }

  .strengths-grid {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .gallery-item.gallery-large {
    grid-column: span 1;
    aspect-ratio: 4 / 3;
  }

  .gallery-item {
    aspect-ratio: 4 / 3;
  }

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

  .footer-top {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .contact-phone {
    font-size: 1.4rem;
  }

  .contact-links {
    flex-direction: column;
  }

  .contact-link-btn {
    justify-content: center;
  }

  .instructor-content h3 {
    font-size: 1.6rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero-badge {
    font-size: 0.72rem;
    padding: 6px 14px;
    margin-bottom: 16px;
  }

  .hero-text-block {
    margin-bottom: 24px;
  }

  .hero-paragraph {
    font-size: 0.85rem;
    line-height: 1.8;
    margin-bottom: 12px;
  }

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

  .btn {
    width: 100%;
    max-width: 280px;
  }

  .program-card {
    padding: 32px 24px;
  }

  .info-card {
    padding: 24px;
  }

  .contact-info-box {
    padding: 28px;
  }
}