*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg: #060608;
  --bg-alt: #0d0f14;
  --card: #11141c;
  --card-alt: #181c25;
  --border-subtle: rgba(255, 255, 255, 0.06);
  --accent: #c99c56;
  --accent-soft: rgba(201, 156, 86, 0.12);
  --text: #f5f5f7;
  --muted: #a0a3ad;
  --danger: #ff4b5c;
  --radius-lg: 18px;
  --radius-md: 12px;
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.55);
  --shadow-subtle: 0 8px 24px rgba(0, 0, 0, 0.4);
  --max-width: 1120px;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Noto Sans KR", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: radial-gradient(circle at top, #141824 0, #050609 55%, #000 100%);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header */

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(5, 6, 10, 0.92), rgba(5, 6, 10, 0.8) 60%, transparent);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 140px;
  padding: 1.5rem 0;
}

.logo {
  display: flex;
  align-items: center;
  background: transparent;
}

.logo-img {
  height: auto;
  max-height: 120px;
  width: auto;
  max-width: 480px;
  object-fit: contain;
  background: transparent !important;
  display: block;
  mix-blend-mode: normal;
}

.logo.small .logo-img {
  height: 36px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.82rem;
}

.nav a {
  color: var(--muted);
  padding: 0.4rem 0;
  position: relative;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), #f6e3c3);
  transition: width 0.18s ease-out;
}

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

.nav-cta {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid rgba(201, 156, 86, 0.55);
  color: var(--accent);
  background: radial-gradient(circle at 0 0, rgba(201, 156, 86, 0.2), rgba(6, 6, 8, 0.96));
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.6);
}

.nav-cta:hover {
  background: linear-gradient(135deg, rgba(201, 156, 86, 0.38), rgba(6, 6, 8, 0.96));
}

/* Hero */

.hero {
  padding: 4rem 0 3rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 3.5rem;
  align-items: center;
}

.hero-kicker {
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.7rem;
  color: var(--muted);
  margin-bottom: 0.8rem;
}

.hero h1 {
  font-size: 2.8rem;
  line-height: 1.1;
  margin: 0 0 1rem;
}

.hero-sub {
  font-size: 0.98rem;
  color: var(--muted);
  max-width: 32rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.8rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.9rem;
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease, background 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), #f6e3c3);
  color: #141210;
  box-shadow: 0 14px 35px rgba(0, 0, 0, 0.55);
}

.btn.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.7);
}

.btn.ghost {
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(8, 9, 12, 0.6);
  color: var(--text);
}

.btn.ghost:hover {
  background: rgba(15, 17, 23, 0.9);
}

.btn.full {
  width: 100%;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.8rem;
  font-size: 0.78rem;
  color: var(--muted);
}

.hero-meta span {
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: radial-gradient(circle at 0 0, rgba(255, 255, 255, 0.08), rgba(8, 8, 12, 0.9));
}

.hero-media {
  display: flex;
  justify-content: flex-end;
}

.hero-card {
  background: radial-gradient(circle at 5% 0, rgba(201, 156, 86, 0.18), var(--card));
  border-radius: 24px;
  padding: 1.6rem 1.7rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: var(--shadow-soft);
  max-width: 22rem;
}

.hero-card-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--muted);
  margin-bottom: 0.8rem;
}

.hero-card ul {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.9rem;
}

.hero-card li + li {
  margin-top: 0.25rem;
}

.hero-card-note {
  margin-top: 1.2rem;
  font-size: 0.78rem;
  color: var(--muted);
}

/* Sections */

.section {
  padding: 4rem 0;
}

.section-alt {
  background: radial-gradient(circle at top, #111420 0, #050609 55%, #050609 100%);
}

.section-kicker {
  text-transform: uppercase;
  letter-spacing: 0.26em;
  font-size: 0.72rem;
  color: var(--muted);
  margin-bottom: 0.6rem;
}

.section h2 {
  margin: 0 0 1rem;
  font-size: 1.7rem;
}

.section-lead {
  color: var(--muted);
  font-size: 0.96rem;
  max-width: 32rem;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 2.3rem;
  align-items: flex-start;
}

/* Panels, cards */

.panel {
  background: linear-gradient(145deg, var(--card), var(--card-alt));
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.5rem;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-subtle);
  font-size: 0.92rem;
}

.panel h3 {
  margin-top: 0;
  margin-bottom: 0.6rem;
  font-size: 1.05rem;
}

.panel.highlight {
  border-color: rgba(201, 156, 86, 0.7);
  background: radial-gradient(circle at 0 0, rgba(201, 156, 86, 0.16), var(--card));
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 2.4rem;
}

.card {
  background: radial-gradient(circle at top, rgba(255, 255, 255, 0.04), var(--card));
  border-radius: var(--radius-lg);
  padding: 1.4rem 1.5rem;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-subtle);
  font-size: 0.92rem;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.6rem;
  font-size: 1.02rem;
}

.card-meta {
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--muted);
}

/* Lists */

.bullet-list {
  margin: 1rem 0 0;
  padding-left: 1.1rem;
  font-size: 0.9rem;
}

.bullet-list.small {
  font-size: 0.86rem;
}

.bullet-list li + li {
  margin-top: 0.25rem;
}

.check-list {
  margin: 0.8rem 0 0;
  padding-left: 1.3rem;
  font-size: 0.9rem;
}

.check-list li {
  list-style: "✔  ";
  padding-left: 0.1rem;
}

.check-list li + li {
  margin-top: 0.3rem;
}

.note {
  margin-top: 0.9rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.step-list {
  margin: 0.7rem 0 0;
  padding-left: 1.1rem;
  font-size: 0.9rem;
}

.step-list li + li {
  margin-top: 0.3rem;
}

/* Mission */

.mission-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

/* Find lesson */

.find-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.3rem;
  margin-top: 2rem;
}

/* Instructors */

.instructors-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.instructor-card {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.avatar-placeholder {
  width: 48px;
  height: 48px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  display: block;
  object-fit: cover;
  margin-bottom: 0.3rem;
}

.avatar-placeholder:not(img) {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--accent);
  background: radial-gradient(circle at 30% 0, rgba(255, 255, 255, 0.22), transparent 70%);
}

.instructor-philosophy {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.4rem;
}

/* Reviews */

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.4rem;
  margin-top: 2rem;
}

.review-meta {
  margin-top: 0.8rem;
  font-size: 0.8rem;
  color: var(--muted);
}

.analysis-strip {
  margin-top: 2.4rem;
  padding: 1.5rem 1.6rem;
  border-radius: var(--radius-lg);
  border: 1px dashed rgba(201, 156, 86, 0.6);
  background: var(--accent-soft);
  font-size: 0.9rem;
}

/* Gallery */

.gallery-grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.gallery-item {
  border-radius: 16px;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1 / 1;
  min-height: 200px;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.gallery-item.placeholder {
  border: 1px dashed rgba(255, 255, 255, 0.18);
  background: rgba(15, 18, 26, 0.9);
  color: var(--muted);
  padding: 1rem;
  font-size: 0.85rem;
  text-align: center;
}

/* Blog */

.text-link {
  font-size: 0.86rem;
  color: var(--accent);
  border-bottom: 1px solid rgba(201, 156, 86, 0.5);
  padding-bottom: 0.08rem;
}

/* FAQ */

.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
  margin-top: 2rem;
}

.faq-item {
  background: linear-gradient(150deg, var(--card), #10131b);
  border-radius: var(--radius-md);
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--border-subtle);
  font-size: 0.9rem;
}

.faq-item h3 {
  margin: 0 0 0.4rem;
  font-size: 0.95rem;
}

/* Contact */

.contact-section {
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 1.1rem 0 0;
  font-size: 0.9rem;
}

.contact-list li + li {
  margin-top: 0.35rem;
}

.contact-form {
  background: linear-gradient(145deg, var(--card), var(--card-alt));
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.6rem;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-subtle);
}

.contact-form h3 {
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: 1.02rem;
}

.form-group {
  margin-bottom: 0.9rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  margin-bottom: 0.25rem;
  color: var(--muted);
}

input,
select,
textarea {
  width: 100%;
  padding: 0.55rem 0.7rem;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(6, 7, 10, 0.9);
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
  outline: none;
}

input:focus,
select:focus,
textarea:focus {
  border-color: rgba(201, 156, 86, 0.7);
  box-shadow: 0 0 0 1px rgba(201, 156, 86, 0.3);
}

textarea {
  resize: vertical;
}

.form-note {
  margin-top: 0.7rem;
  font-size: 0.78rem;
  color: var(--muted);
}

/* Footer */

.footer {
  padding: 1.8rem 0 2.2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: linear-gradient(to bottom, rgba(4, 5, 8, 0.96), #000);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
}

.footer-text {
  font-size: 0.76rem;
  color: var(--muted);
  margin: 0.3rem 0 0;
}

.footer-right {
  display: flex;
  gap: 1.1rem;
  font-size: 0.8rem;
}

.footer-right a {
  color: var(--muted);
}

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

/* Responsive */

@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 2.5rem;
  }

  .hero-media {
    justify-content: flex-start;
  }

  .section-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .mission-grid,
  .find-grid,
  .card-grid,
  .reviews-grid,
  .gallery-grid,
  .faq-grid,
  .instructors-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .header-inner {
    gap: 1.5rem;
  }

  .logo-img {
    max-height: 100px;
    max-width: 400px;
  }

  .nav {
    gap: 1rem;
    font-size: 0.78rem;
  }
}

@media (max-width: 720px) {
  .header-inner {
    flex-direction: column;
    justify-content: center;
    min-height: auto;
    padding: 1rem 0;
  }

  .logo-img {
    max-height: 90px;
    max-width: 360px;
  }

  .hero {
    padding-top: 3rem;
  }

  .hero h1 {
    font-size: 2.1rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .mission-grid,
  .find-grid,
  .card-grid,
  .reviews-grid,
  .gallery-grid,
  .faq-grid,
  .instructors-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}