:root {
  --color-primary: #8B5CF6;
  --color-secondary: #C4B5FD;
  --color-accent: #10B981;
  --color-neutral-dark: #4C1D95;
  --color-neutral-light: #FAF5FF;
  --font-heading: 'Nanum Myeongjo', serif;
  --font-body: 'Noto Sans KR', sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-soft: 0 2px 20px rgba(76, 29, 149, 0.08);
  --shadow-lift: 0 24px 60px -24px rgba(76, 29, 149, 0.35);
}

/* === Base === */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-neutral-dark);
  background: var(--color-neutral-light);
  line-height: 1.6;
  font-size: 16px;
}
h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--color-neutral-dark); line-height: 1.2; letter-spacing: -0.01em; margin: 0 0 .75rem; }
h1 { font-size: clamp(2rem, 4.5vw, 3.5rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 700; }
p { margin: 0 0 1rem; }
a { color: var(--color-primary); text-decoration: none; transition: color .2s; }
a:hover { color: var(--color-neutral-dark); }
img { max-width: 100%; height: auto; display: block; }

/* === Header / Nav === */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(250, 245, 255, 0.72);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  border-bottom: 1px solid rgba(139, 92, 246, 0.12);
  transition: background .2s, box-shadow .2s;
}
.site-header.scrolled { background: rgba(250, 245, 255, 0.92); box-shadow: 0 8px 30px -20px rgba(76, 29, 149, 0.25); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; max-width: 1200px; margin: 0 auto; padding: .75rem 1.25rem; gap: 1rem; }
.logo { display: inline-flex; align-items: center; }
.logo img { height: 72px; width: auto; }
.nav-toggle { background: transparent; border: 0; color: var(--color-neutral-dark); cursor: pointer; padding: .5rem; }
.primary-nav { display: none; flex-direction: column; position: absolute; left: 0; right: 0; top: 100%; background: var(--color-neutral-light); padding: 1rem 1.25rem; border-bottom: 1px solid rgba(139,92,246,.12); gap: .25rem; }
.primary-nav.is-open { display: flex; }
.primary-nav a { color: var(--color-neutral-dark); padding: .6rem 0; font-weight: 500; position: relative; }
.primary-nav a[aria-current="page"] { color: var(--color-primary); }
.primary-nav .nav-cta { background: linear-gradient(135deg, var(--color-primary), var(--color-neutral-dark)); color: #fff; padding: .55rem 1rem; border-radius: 999px; text-align: center; margin-top: .25rem; }
.primary-nav .nav-cta:hover { color: #fff; }

@media (min-width: 900px) {
  .nav-toggle { display: none; }
  .primary-nav { display: flex; flex-direction: row; position: static; padding: 0; background: transparent; border: 0; align-items: center; gap: 1.5rem; }
  .primary-nav a { padding: .25rem 0; }
  .primary-nav a:not(.nav-cta)::after { content: ''; position: absolute; left: 0; right: 0; bottom: -4px; height: 2px; background: var(--color-primary); transform: scaleX(0); transform-origin: left; transition: transform .25s var(--ease); }
  .primary-nav a:not(.nav-cta):hover::after,
  .primary-nav a[aria-current="page"]::after { transform: scaleX(1); }
  .logo img { height: 96px; }
}

/* === Hero card === */
.hero { padding: 3rem 1.25rem; position: relative; overflow: hidden; }
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(60% 50% at 15% 10%, rgba(196, 181, 253, 0.35), transparent 60%),
    radial-gradient(50% 40% at 90% 80%, rgba(16, 185, 129, 0.18), transparent 60%);
  pointer-events: none;
}
.hero-card__inner {
  position: relative;
  max-width: 880px; margin: 0 auto;
  background: #fff;
  padding: 2.5rem 1.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lift);
  border: 1px solid rgba(139,92,246,.1);
  text-align: center;
}
.eyebrow { text-transform: uppercase; letter-spacing: .18em; font-size: .75rem; color: var(--color-primary); font-weight: 700; margin-bottom: .75rem; }
.hero-card__inner h1 { max-width: 22ch; margin-inline: auto; }
.lede { font-size: 1.1rem; color: rgba(76,29,149,.75); max-width: 52ch; margin: .5rem auto 1.5rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: .75rem; justify-content: center; margin-bottom: 1.75rem; }
.hero-card__media { margin-top: 1.5rem; border-radius: var(--radius-md); overflow: hidden; box-shadow: 0 20px 60px -20px rgba(76,29,149,.35); }
.hero-card__media img { aspect-ratio: 16 / 9; object-fit: cover; width: 100%; }

@media (min-width: 768px) {
  .hero { padding: 5rem 1.5rem; }
  .hero-card__inner { padding: 4rem 3.5rem; }
}

/* === Buttons === */
.btn { display: inline-block; padding: .8rem 1.5rem; border-radius: 999px; font-weight: 600; font-size: .95rem; cursor: pointer; border: 1px solid transparent; transition: transform .2s var(--ease), box-shadow .2s, background .2s, color .2s; text-align: center; }
.btn-primary { background: linear-gradient(135deg, var(--color-primary), var(--color-neutral-dark)); color: #fff; box-shadow: 0 12px 30px -12px rgba(139,92,246,.6); }
.btn-primary:hover { transform: translateY(-2px); color: #fff; box-shadow: 0 18px 40px -14px rgba(139,92,246,.7); }
.btn-ghost { background: transparent; color: var(--color-neutral-dark); border-color: rgba(76,29,149,.25); }
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--color-primary); color: var(--color-primary); }
.btn:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; }

/* === Sections === */
.section { padding: 4rem 1.25rem; max-width: 1200px; margin: 0 auto; }
.section.narrow { max-width: 780px; }
.section-title { text-align: center; margin-bottom: 2.5rem; }

/* === Grid / Cards === */
.grid { display: grid; gap: 1.25rem; }
.grid-3 { grid-template-columns: 1fr; }
.card {
  background: #fff;
  padding: 1.75rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(139,92,246,.1);
  box-shadow: var(--shadow-soft);
  transition: transform .2s var(--ease), box-shadow .2s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }
.card-icon { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 12px; background: linear-gradient(135deg, rgba(139,92,246,.15), rgba(16,185,129,.15)); color: var(--color-primary); margin-bottom: 1rem; }

@media (min-width: 720px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }

/* === Testimonial === */
.testimonial blockquote { max-width: 780px; margin: 0 auto; text-align: center; padding: 2rem 1rem; }
.testimonial p { font-family: var(--font-heading); font-size: clamp(1.15rem, 2vw, 1.5rem); line-height: 1.5; color: var(--color-neutral-dark); }
.testimonial cite { display: block; margin-top: 1rem; font-style: normal; font-size: .9rem; color: rgba(76,29,149,.7); font-weight: 500; }

/* === CTA band === */
.cta-band { margin: 3rem 1.25rem; }
.cta-band__inner {
  max-width: 1000px; margin: 0 auto;
  background: linear-gradient(135deg, var(--color-primary), var(--color-neutral-dark));
  color: #fff; padding: 3rem 1.5rem;
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-lift);
}
.cta-band__inner h2 { color: #fff; }
.cta-band__inner p { color: rgba(255,255,255,.85); max-width: 55ch; margin-inline: auto; margin-bottom: 1.5rem; }
.cta-band__inner .btn-primary { background: #fff; color: var(--color-neutral-dark); }
.cta-band__inner .btn-primary:hover { color: var(--color-primary); }

/* === Pricing === */
.pricing-grid { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 900px) { .pricing-grid--3 { grid-template-columns: repeat(3, 1fr); } }
.pricing-card { position: relative; padding: 2.25rem 1.75rem; border-radius: var(--radius-md); border: 1px solid rgba(76,29,149,.12); background: #fff; display: flex; flex-direction: column; box-shadow: var(--shadow-soft); transition: transform .2s var(--ease), box-shadow .2s; }
.pricing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); }
.pricing-card--featured { border-color: var(--color-accent); border-width: 2px; }
.pricing-card__badge { position: absolute; top: 1rem; right: 1rem; background: var(--color-accent); color: #fff; font-size: .75rem; font-weight: 700; padding: .3rem .7rem; border-radius: 999px; }
.pricing-card__plan { font-size: 1.25rem; margin-bottom: .25rem; }
.pricing-card__price { font-size: clamp(2rem, 4vw, 2.75rem); font-weight: 700; font-family: var(--font-heading); color: var(--color-neutral-dark); margin: .25rem 0 .5rem; }
.pricing-card__lede { color: rgba(76,29,149,.7); font-size: .95rem; margin-bottom: 1rem; }
.pricing-card__features { list-style: none; padding: 0; margin: 0 0 1.5rem; display: flex; flex-direction: column; gap: .5rem; }
.pricing-card__features li { display: flex; gap: .5rem; font-size: .95rem; color: var(--color-neutral-dark); }
.pricing-card__cta { margin-top: auto; }

/* === FAQ === */
.faq details { background: #fff; border: 1px solid rgba(139,92,246,.15); border-radius: var(--radius-sm); padding: 1rem 1.25rem; margin-bottom: .75rem; box-shadow: var(--shadow-soft); }
.faq summary { cursor: pointer; font-weight: 600; color: var(--color-neutral-dark); list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; float: right; color: var(--color-primary); font-weight: 700; transition: transform .2s; }
.faq details[open] summary::after { content: '−'; }
.faq details p { margin: .75rem 0 0; color: rgba(76,29,149,.85); }

/* === Contact form === */
.contact-form { display: flex; flex-direction: column; gap: 1rem; background: #fff; padding: 1.75rem; border-radius: var(--radius-md); border: 1px solid rgba(139,92,246,.12); box-shadow: var(--shadow-soft); }
.form-row { display: flex; flex-direction: column; gap: .35rem; }
.form-row label { font-size: .9rem; font-weight: 600; color: var(--color-neutral-dark); }
.form-row input, .form-row textarea { font: inherit; padding: .7rem .85rem; border: 1px solid rgba(76,29,149,.2); border-radius: var(--radius-sm); background: var(--color-neutral-light); color: var(--color-neutral-dark); transition: border-color .2s, box-shadow .2s; }
.form-row input:focus, .form-row textarea:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(139,92,246,.2); }
.form-consent { display: flex; gap: .5rem; align-items: flex-start; font-size: .85rem; color: rgba(76,29,149,.85); }
.form-consent input { margin-top: .2rem; }

/* === Footer === */
.site-footer { background: var(--color-neutral-dark); color: rgba(255,255,255,.85); padding: 3rem 1.25rem 1.5rem; margin-top: 3rem; }
.footer-inner { max-width: 1200px; margin: 0 auto; display: grid; gap: 2rem; grid-template-columns: 1fr; }
.site-footer .logo img { height: 64px; }
.site-footer .tagline { color: rgba(255,255,255,.7); margin-top: .5rem; font-family: var(--font-heading); }
.site-footer h4 { color: #fff; font-size: 1rem; margin-bottom: .75rem; font-family: var(--font-body); font-weight: 700; }
.site-footer nav { display: flex; flex-direction: column; gap: .4rem; }
.site-footer a { color: rgba(255,255,255,.8); }
.site-footer a:hover { color: var(--color-secondary); }
.site-footer address { font-style: normal; line-height: 1.7; }
.legal-links { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 1rem; font-size: .85rem; }
.copyright { max-width: 1200px; margin: 2rem auto 0; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.15); font-size: .85rem; color: rgba(255,255,255,.6); text-align: center; }

@media (min-width: 800px) { .footer-inner { grid-template-columns: 1.2fr 1fr 1.3fr; } }

/* === 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 1.5rem; border-radius: var(--radius-md);
  box-shadow: 0 20px 60px -20px rgba(0,0,0,.5);
  max-width: 640px; margin: 0 auto;
  font-size: .9rem;
}
.cookie-banner.is-visible { display: block; }
.cookie-banner p { margin: 0 0 .9rem; color: rgba(255,255,255,.9); }
.cookie-banner__actions { display: flex; flex-wrap: wrap; gap: .5rem; }
.cookie-banner__actions button { padding: .55rem 1rem; border-radius: 999px; border: 1px solid rgba(255,255,255,.25); background: transparent; color: #fff; font: inherit; font-weight: 600; cursor: pointer; transition: background .2s, transform .2s; }
.cookie-banner__actions button:hover { transform: translateY(-1px); }
.cookie-banner__actions [data-cookie-accept] { background: var(--color-accent); border-color: var(--color-accent); }
.cookie-banner__prefs { margin-top: 1rem; display: flex; flex-direction: column; gap: .5rem; padding-top: 1rem; border-top: 1px solid rgba(255,255,255,.15); }
.cookie-banner__prefs label { display: flex; align-items: center; gap: .5rem; color: rgba(255,255,255,.9); }
.cookie-banner__prefs button { align-self: flex-start; margin-top: .5rem; padding: .5rem 1rem; border-radius: 999px; border: 0; background: var(--color-primary); color: #fff; font: inherit; font-weight: 600; cursor: pointer; }

/* === Reveal motion === */
.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; }
  html { scroll-behavior: auto; }
}