:root {
  --color-primary: #0F172A;
  --color-secondary: #334155;
  --color-accent: #0369A1;
  --color-neutral-dark: #020617;
  --color-neutral-light: #F8FAFC;
  --color-line: rgba(15, 23, 42, 0.12);
  --font-heading: 'Nanum Myeongjo', serif;
  --font-body: 'Noto Sans KR', sans-serif;
  --sidebar-width: 240px;
}

/* === Base === */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-primary);
  background: var(--color-neutral-light);
  line-height: 1.6;
  font-size: 16px;
  word-break: keep-all;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3 { font-family: var(--font-heading); color: var(--color-primary); line-height: 1.25; margin: 0 0 1rem; font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.25rem); margin-top: 0; }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1rem; }

/* === Layout === */
.layout { display: block; }
.sidebar {
  background: var(--color-neutral-dark);
  color: var(--color-neutral-light);
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.logo { display: inline-block; }
.logo img { height: 72px; width: auto; display: block; }
.sidebar__nav { display: none; flex-direction: column; gap: 0.25rem; margin-top: 0.5rem; }
.sidebar__nav.is-open { display: flex; }
.sidebar__nav a {
  color: var(--color-neutral-light);
  padding: 0.5rem 0;
  font-size: 1rem;
  border-bottom: 1px solid rgba(248, 250, 252, 0.08);
}
.sidebar__nav a.is-current { color: var(--color-accent); font-weight: 500; }
.sidebar__foot { display: none; font-size: 0.85rem; color: rgba(248, 250, 252, 0.55); margin: 0; }
.nav-toggle {
  align-self: flex-start;
  background: transparent;
  border: 1px solid rgba(248, 250, 252, 0.3);
  color: var(--color-neutral-light);
  padding: 0.5rem 0.9rem;
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  border-radius: 4px;
}

.main { padding: 2rem 1.25rem 3rem; max-width: 100%; }
.page-header { margin-bottom: 1.5rem; }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  color: var(--color-secondary);
  margin: 0 0 0.5rem;
  font-weight: 500;
}

/* === Hero === */
.hero { padding-block: 1rem 3rem; }
.hero h1 { max-width: 20ch; }
.hero__sub { font-size: 1.125rem; color: var(--color-secondary); max-width: 46ch; margin-bottom: 1.5rem; }
.hero__figure { margin: 2.5rem 0 0; }
.hero__figure img { width: 100%; aspect-ratio: 16/9; object-fit: cover; border-radius: 8px; }
.hero--compact { padding-block: 0.5rem 2rem; }

/* === Buttons === */
.btn {
  display: inline-block;
  padding: 0.85rem 1.5rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  border-radius: 4px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.2s ease, transform 0.15s ease;
}
.btn:hover { text-decoration: none; }
.btn--primary { background: var(--color-primary); color: var(--color-neutral-light); }
.btn--primary:hover { background: var(--color-secondary); }
.btn--accent { background: var(--color-accent); color: var(--color-neutral-light); }
.btn--accent:hover { background: #0284c7; }

/* === Sections === */
.section { padding-block: 3rem; border-top: 1px solid var(--color-line); }
.section--narrow { max-width: 68ch; margin-inline: auto; }
.section__head { margin-bottom: 2rem; max-width: 60ch; }
.section__sub { color: var(--color-secondary); font-size: 1.05rem; margin: 0; }
.section--split { display: grid; gap: 2rem; }
.split__figure img { aspect-ratio: 4/3; object-fit: cover; border-radius: 8px; width: 100%; }

/* === Grid & Cards === */
.grid { display: grid; gap: 1.25rem; }
.grid--2 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: 1fr; }
.card {
  background: #fff;
  border: 1px solid var(--color-line);
  border-radius: 8px;
  padding: 1.5rem;
}
.card h3 { margin-top: 0.5rem; }
.card__icon { color: var(--color-accent); }
.card-link { display: block; color: inherit; transition: transform 0.15s ease, box-shadow 0.2s ease; }
.card-link:hover { text-decoration: none; transform: translateY(-2px); box-shadow: 0 12px 24px -18px rgba(2, 6, 23, 0.35); }
.card__more { display: inline-block; margin-top: 0.5rem; color: var(--color-accent); font-weight: 500; }

/* === Testimonial === */
.testimonial { text-align: center; }
.testimonial blockquote { margin: 0 auto; max-width: 60ch; }
.testimonial p {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2.5vw, 1.6rem);
  line-height: 1.5;
  color: var(--color-primary);
  margin-bottom: 1rem;
}
.testimonial cite { font-style: normal; color: var(--color-secondary); font-size: 0.95rem; }

/* === CTA band === */
.cta-band {
  background: var(--color-primary);
  color: var(--color-neutral-light);
  padding: 3rem 1.5rem;
  text-align: center;
  margin-block: 3rem;
  border-radius: 8px;
}
.cta-band h2 { color: var(--color-neutral-light); max-width: 28ch; margin-inline: auto; }
.cta-band p { color: rgba(248, 250, 252, 0.8); margin-bottom: 1.5rem; }

/* === Contact === */
.contact-card__grid { display: grid; gap: 2rem; }
.hours { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
.hours th, .hours td { text-align: left; padding: 0.55rem 0; border-bottom: 1px solid var(--color-line); }
.hours th { color: var(--color-secondary); font-weight: 500; }

.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.contact-form label { display: flex; flex-direction: column; gap: 0.35rem; font-size: 0.95rem; color: var(--color-secondary); }
.contact-form input, .contact-form textarea {
  font-family: inherit;
  font-size: 1rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--color-line);
  border-radius: 4px;
  background: #fff;
  color: var(--color-primary);
}
.contact-form input:focus, .contact-form textarea:focus { outline: 2px solid var(--color-accent); outline-offset: 1px; }
.form-consent { flex-direction: row; align-items: flex-start; gap: 0.6rem; font-size: 0.88rem; color: var(--color-secondary); }
.form-consent input { margin-top: 0.2rem; }

/* === Article === */
.article { max-width: 65ch; margin-inline: auto; padding-inline: 0; }
.article__head { margin-block: 1.5rem 1.5rem; }
.article__sub { font-size: 1.15rem; color: var(--color-secondary); margin: 0.5rem 0 0; }
.article__figure { margin: 2rem 0; }
.article__figure img { aspect-ratio: 16/9; object-fit: cover; border-radius: 8px; width: 100%; }
.article p { font-size: 1.08rem; line-height: 1.8; margin-block: 1.25rem; }
.article__foot { margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--color-line); }
.back-link { color: var(--color-accent); font-weight: 500; }

/* === Footer === */
.site-footer {
  border-top: 1px solid var(--color-line);
  padding-block: 2.5rem 1.5rem;
  margin-top: 3rem;
  color: var(--color-secondary);
  font-size: 0.92rem;
}
.site-footer__cols { display: grid; gap: 2rem; grid-template-columns: 1fr; }
.site-footer__brand { font-family: var(--font-heading); color: var(--color-primary); font-size: 1.15rem; font-weight: 700; margin: 0 0 0.35rem; }
.site-footer nav { display: flex; flex-direction: column; gap: 0.35rem; }
.site-footer nav a { color: var(--color-secondary); }
.site-footer__legal { margin-top: 0.5rem; font-size: 0.85rem; }
.site-footer__copy { margin-top: 1.5rem; padding-top: 1.25rem; border-top: 1px solid var(--color-line); font-size: 0.85rem; color: var(--color-secondary); }

/* === Cookie banner === */
.cookie-banner {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  display: none;
  z-index: 9999;
  background: var(--color-neutral-dark);
  color: var(--color-neutral-light);
  padding: 1.25rem;
  border-radius: 8px;
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.4);
  font-size: 0.9rem;
  max-width: 640px;
  margin-inline: auto;
}
.cookie-banner.is-visible { display: block; }
.cookie-banner p { margin: 0 0 0.9rem; color: rgba(248, 250, 252, 0.85); }
.cookie-banner__actions { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.cookie-banner__actions button {
  font-family: inherit;
  font-size: 0.88rem;
  padding: 0.55rem 1rem;
  border-radius: 4px;
  border: 1px solid rgba(248, 250, 252, 0.3);
  background: transparent;
  color: var(--color-neutral-light);
  cursor: pointer;
}
.cookie-banner__actions button[data-cookie-accept] { background: var(--color-accent); border-color: var(--color-accent); }
.cookie-banner__prefs { margin-top: 1rem; display: flex; flex-direction: column; gap: 0.5rem; }
.cookie-banner__prefs label { display: flex; align-items: center; gap: 0.5rem; font-size: 0.88rem; }
.cookie-banner__prefs button {
  align-self: flex-start;
  margin-top: 0.5rem;
  font-family: inherit;
  font-size: 0.85rem;
  padding: 0.5rem 0.9rem;
  border-radius: 4px;
  border: 1px solid rgba(248, 250, 252, 0.3);
  background: transparent;
  color: var(--color-neutral-light);
  cursor: pointer;
}

/* === Desktop === */
@media (min-width: 900px) {
  .layout {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    min-height: 100vh;
  }
  .sidebar {
    position: sticky;
    top: 0;
    align-self: start;
    height: 100vh;
    padding: 2rem 1.5rem;
    gap: 1.5rem;
  }
  .logo img { height: 96px; }
  .sidebar__nav { display: flex; margin-top: 1rem; }
  .sidebar__foot { display: block; margin-top: auto; }
  .nav-toggle { display: none; }
  .main { padding: 3rem 3rem 4rem; max-width: 1080px; }
  .grid--2 { grid-template-columns: repeat(2, 1fr); gap: 1.75rem; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
  .section--split { grid-template-columns: 1fr 1fr; align-items: center; gap: 3rem; }
  .contact-card__grid { grid-template-columns: 1fr 1fr; gap: 3rem; }
  .site-footer__cols { grid-template-columns: 1.2fr 1fr 1.4fr; gap: 3rem; }
  .cta-band { padding: 4rem 2rem; }
  .cookie-banner { left: auto; right: 1.5rem; bottom: 1.5rem; max-width: 420px; margin-inline: 0; }
}

@media (min-width: 1200px) {
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}