/* === Tokens === */
:root {
  --color-primary: #1C1917;
  --color-secondary: #44403C;
  --color-accent: #CA8A04;
  --color-neutral-dark: #0C0A09;
  --color-neutral-light: #FAFAF9;
  --color-surface: #FFFFFF;
  --color-border: rgba(28, 25, 23, 0.10);
  --font-heading: 'Gowun Batang', serif;
  --font-body: 'Pretendard', 'Noto Sans KR', system-ui, sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --radius-lg: 20px;
  --radius-md: 14px;
  --shadow-soft: 0 2px 20px rgba(0,0,0,0.06);
  --shadow-lift: 0 20px 60px -20px rgba(0,0,0,0.25);
}

/* === Base === */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-primary);
  background: var(--color-neutral-light);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-accent); }
h1, h2, h3, h4 { font-family: var(--font-heading); font-weight: 700; letter-spacing: -0.01em; margin: 0 0 0.6em; line-height: 1.2; color: var(--color-neutral-dark); }
h1 { font-size: clamp(2rem, 4.6vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; }

/* === Layout === */
.container { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 1.25rem; }
.narrow { max-width: 760px; }
.section { padding: 4rem 0; }
@media (min-width: 768px) { .section { padding: 6rem 0; } }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 2.5rem; }
.section-head p { color: var(--color-secondary); }
.section-lede { color: var(--color-secondary); margin-bottom: 2rem; }
.eyebrow { font-size: .8rem; text-transform: uppercase; letter-spacing: .16em; color: var(--color-accent); margin: 0 0 1rem; font-weight: 600; }

/* === Header / Nav === */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(250, 250, 249, 0.72);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid transparent;
  transition: background .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.site-header.scrolled { background: rgba(250, 250, 249, 0.92); border-bottom-color: var(--color-border); box-shadow: 0 4px 20px -12px rgba(0,0,0,0.15); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: .75rem 1.25rem; gap: 1rem; }
.logo { display: inline-flex; align-items: center; }
.logo img { height: 72px; width: auto; display: block; }
@media (min-width: 768px) { .logo img { height: 96px; } }
.primary-nav { display: none; align-items: center; gap: 1.75rem; }
.primary-nav a { position: relative; font-size: .95rem; font-weight: 500; color: var(--color-secondary); padding: .5rem 0; }
.primary-nav a::after { content: ''; position: absolute; left: 0; bottom: 0; height: 2px; width: 100%; background: var(--color-accent); transform: scaleX(0); transform-origin: left; transition: transform .25s var(--ease); }
.primary-nav a:hover, .primary-nav a[aria-current='page'] { color: var(--color-primary); }
.primary-nav a:hover::after, .primary-nav a[aria-current='page']::after { transform: scaleX(1); }
.primary-nav a.nav-cta { background: var(--color-primary); color: var(--color-neutral-light); padding: .55rem 1.1rem; border-radius: 999px; }
.primary-nav a.nav-cta:hover { background: var(--color-accent); color: var(--color-neutral-dark); }
.primary-nav a.nav-cta::after { display: none; }
.nav-toggle { display: inline-flex; align-items: center; justify-content: center; background: none; border: 1px solid var(--color-border); border-radius: 10px; padding: .5rem; color: var(--color-primary); cursor: pointer; }
@media (min-width: 900px) { .primary-nav { display: flex; } .nav-toggle { display: none; } }
.primary-nav.is-open { display: flex; flex-direction: column; align-items: stretch; gap: .25rem; position: absolute; left: 1rem; right: 1rem; top: 100%; margin-top: .5rem; background: var(--color-neutral-light); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 1rem; box-shadow: var(--shadow-soft); }
.primary-nav.is-open a { padding: .6rem .5rem; }

/* === Buttons === */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: .85rem 1.5rem; border-radius: 999px; font-weight: 600; font-size: .95rem; transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s; cursor: pointer; border: none; text-align: center; }
.btn-primary { background: linear-gradient(135deg, var(--color-primary), var(--color-secondary)); color: var(--color-neutral-light); box-shadow: 0 8px 24px -12px rgba(28,25,23,.45); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px -14px rgba(28,25,23,.55); color: var(--color-neutral-light); }
.btn-ghost { background: transparent; color: var(--color-primary); border: 1px solid var(--color-border); }
.btn-ghost:hover { background: var(--color-primary); color: var(--color-neutral-light); }
.btn:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }
.cta-row { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.5rem; }

/* === Hero (split) === */
.hero { position: relative; padding: 3rem 0 2.5rem; overflow: hidden; }
.hero::before {
  content: '';
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(60% 60% at 90% 10%, rgba(202,138,4,0.10), transparent 60%),
    radial-gradient(50% 50% at 0% 100%, rgba(28,25,23,0.05), transparent 60%),
    var(--color-neutral-light);
}
@media (min-width: 768px) { .hero { padding: 5rem 0 4rem; } }
.hero-grid { display: grid; grid-template-columns: 1fr; gap: 2.5rem; align-items: center; }
@media (min-width: 900px) { .hero-grid { grid-template-columns: 1.05fr 1fr; gap: 4rem; } }
.hero-copy .lede { font-size: 1.125rem; color: var(--color-secondary); max-width: 52ch; }
.hero-media img { aspect-ratio: 4/5; object-fit: cover; border-radius: var(--radius-lg); box-shadow: var(--shadow-lift); width: 100%; }
@media (max-width: 899px) { .hero-media img { aspect-ratio: 16/10; } }

/* === Cards / Grids === */
.card-grid { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }
@media (min-width: 700px) { .card-grid-3 { grid-template-columns: repeat(3, 1fr); } .card-grid-4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .card-grid-4 { grid-template-columns: repeat(4, 1fr); } }
.card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 1.75rem; box-shadow: var(--shadow-soft); transition: transform .25s var(--ease), box-shadow .25s var(--ease); }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }
.card p { color: var(--color-secondary); margin: 0; font-size: .95rem; }
.card h3 { margin: .35rem 0 .5rem; }
.card-icon { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 12px; background: rgba(202,138,4,0.10); color: var(--color-accent); margin-bottom: 1rem; }
a.card-link { color: inherit; display: block; }
a.card-link:hover { color: inherit; }

/* === Stats === */
.stat-card .stat-number { font-family: var(--font-heading); font-size: clamp(2.25rem, 5vw, 3.25rem); font-weight: 700; color: var(--color-accent); margin: 0 0 .25rem; line-height: 1; }
.stat-card h3 { font-size: 1.05rem; color: var(--color-primary); margin-bottom: .5rem; }

/* === Testimonial === */
.testimonial-section { background: linear-gradient(180deg, transparent, rgba(28,25,23,0.03)); }
.testimonial { max-width: 780px; margin: 0 auto; text-align: center; padding: 2.5rem 1.5rem; background: var(--color-surface); border-radius: var(--radius-lg); border: 1px solid var(--color-border); box-shadow: var(--shadow-soft); }
.testimonial-portrait { width: 84px; height: 84px; border-radius: 50%; object-fit: cover; margin: 0 auto 1.25rem; box-shadow: 0 6px 20px -8px rgba(0,0,0,.2); }
.testimonial blockquote { margin: 0 0 1rem; font-family: var(--font-heading); font-size: 1.25rem; line-height: 1.55; color: var(--color-primary); }
.testimonial figcaption { color: var(--color-secondary); font-size: .95rem; }

/* === CTA Band === */
.cta-band { background: linear-gradient(135deg, var(--color-primary), var(--color-secondary)); color: var(--color-neutral-light); position: relative; overflow: hidden; }
.cta-band::before { content: ''; position: absolute; inset: 0; background: radial-gradient(50% 80% at 100% 0%, rgba(202,138,4,0.25), transparent 60%); pointer-events: none; }
.cta-band h2 { color: var(--color-neutral-light); margin-bottom: .5rem; }
.cta-band p { color: rgba(250,250,249,0.85); margin: 0; }
.cta-band-inner { display: flex; flex-direction: column; gap: 1.5rem; align-items: flex-start; }
@media (min-width: 800px) { .cta-band-inner { flex-direction: row; align-items: center; justify-content: space-between; gap: 2rem; } }
.cta-band .btn-primary { background: var(--color-accent); color: var(--color-neutral-dark); }
.cta-band .btn-primary:hover { background: var(--color-neutral-light); color: var(--color-primary); }

/* === Intro / narrow prose === */
.intro .narrow p { font-size: 1.05rem; color: var(--color-secondary); }

/* === Form === */
.contact-form { display: grid; gap: 1rem; margin-top: 1.5rem; }
.contact-form label { display: grid; gap: .35rem; font-size: .9rem; font-weight: 500; color: var(--color-primary); }
.contact-form input, .contact-form select, .contact-form textarea { font: inherit; padding: .75rem .85rem; border: 1px solid var(--color-border); border-radius: 10px; background: var(--color-surface); color: var(--color-primary); transition: border-color .2s, box-shadow .2s; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { outline: none; border-color: var(--color-accent); box-shadow: 0 0 0 3px rgba(202,138,4,0.18); }
.form-consent { display: flex; flex-direction: row; align-items: flex-start; gap: .6rem; font-size: .85rem; color: var(--color-secondary); }
.form-consent input { margin-top: .2rem; }
.form-consent a { color: var(--color-accent); text-decoration: underline; }
.contact-form .btn { justify-self: flex-start; }

/* === FAQ === */
.faq-list details { border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 1rem 1.25rem; background: var(--color-surface); margin-bottom: .75rem; transition: box-shadow .2s; }
.faq-list details[open] { box-shadow: var(--shadow-soft); }
.faq-list summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 1rem; color: var(--color-primary); }
.faq-list summary::after { content: '+'; font-size: 1.4rem; color: var(--color-accent); transition: transform .2s; }
.faq-list details[open] summary::after { content: '−'; }
.faq-list p { margin: .75rem 0 0; color: var(--color-secondary); }

/* === Footer === */
.site-footer { background: var(--color-neutral-dark); color: rgba(250,250,249,0.85); padding: 3.5rem 0 1.5rem; margin-top: 3rem; }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; padding-bottom: 2rem; border-bottom: 1px solid rgba(255,255,255,0.08); }
@media (min-width: 800px) { .footer-grid { grid-template-columns: 1.2fr 1fr 1.2fr; } }
.site-footer h4 { color: var(--color-neutral-light); font-size: 1rem; margin-bottom: .75rem; }
.site-footer .footer-tag { color: rgba(250,250,249,0.65); font-size: .9rem; }
.footer-nav { display: flex; flex-direction: column; gap: .5rem; }
.footer-nav a, .footer-contact a { color: rgba(250,250,249,0.75); }
.footer-nav a:hover, .footer-contact a:hover { color: var(--color-accent); }
.footer-contact p { margin: 0 0 .5rem; font-size: .9rem; color: rgba(250,250,249,0.7); }
.footer-legal { margin-top: 1rem; font-size: .85rem; }
.footer-copy { padding-top: 1.25rem; text-align: center; font-size: .85rem; color: rgba(250,250,249,0.5); }
.site-footer .logo img { filter: brightness(0) invert(1); }

/* === Reveal === */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); will-change: opacity, transform; }
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* === 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: var(--radius-md); box-shadow: 0 20px 60px -20px rgba(0,0,0,0.5); max-width: 720px; margin: 0 auto; }
.cookie-banner.is-visible { display: block; }
.cookie-banner p { margin: 0 0 .85rem; font-size: .9rem; color: rgba(250,250,249,0.9); }
.cookie-banner__actions { display: flex; flex-wrap: wrap; gap: .5rem; }
.cookie-banner__actions button { font: inherit; padding: .55rem 1rem; border-radius: 999px; border: 1px solid rgba(255,255,255,0.15); background: transparent; color: var(--color-neutral-light); cursor: pointer; font-size: .85rem; }
.cookie-banner__actions button[data-cookie-accept] { background: var(--color-accent); color: var(--color-neutral-dark); border-color: var(--color-accent); font-weight: 600; }
.cookie-banner__actions button:hover { background: rgba(255,255,255,0.08); }
.cookie-banner__actions button[data-cookie-accept]:hover { background: var(--color-neutral-light); color: var(--color-neutral-dark); }
.cookie-banner__prefs { display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; margin-top: .85rem; padding-top: .85rem; border-top: 1px solid rgba(255,255,255,0.1); font-size: .85rem; }
.cookie-banner__prefs label { display: inline-flex; gap: .35rem; align-items: center; }
.cookie-banner__prefs button { font: inherit; padding: .4rem .9rem; border-radius: 999px; border: 1px solid var(--color-accent); background: var(--color-accent); color: var(--color-neutral-dark); cursor: pointer; font-weight: 600; }