:root{
  --color-primary:#0369A1;
  --color-secondary:#38BDF8;
  --color-accent:#22C55E;
  --color-neutral-dark:#0C4A6E;
  --color-neutral-light:#F0F9FF;
  --font-heading:'Noto Serif KR',serif;
  --font-body:'Noto Sans KR',sans-serif;
  --ease:cubic-bezier(0.22,1,0.36,1);
  --radius:16px;
  --radius-lg:24px;
  --shadow-sm:0 2px 20px rgba(12,74,110,.06);
  --shadow-md:0 12px 40px -12px rgba(12,74,110,.18);
  --shadow-lg:0 24px 60px -20px rgba(12,74,110,.28);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font-body);color:var(--color-neutral-dark);background:#fff;line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--color-primary);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{font-family:var(--font-heading);color:var(--color-neutral-dark);letter-spacing:-0.01em;line-height:1.25;margin:0 0 .5em}
h1{font-size:clamp(2rem,5vw,3.5rem);font-weight:700;letter-spacing:-0.02em}
h2{font-size:clamp(1.5rem,3vw,2.25rem);font-weight:600}
h3{font-size:1.25rem;font-weight:600}
p{margin:0 0 1em}

/* === Layout === */
.container{max-width:1180px;margin:0 auto;padding-inline:1.25rem}
.container.narrow{max-width:760px}

/* === Header / Nav === */
.site-header{position:sticky;top:0;z-index:100;backdrop-filter:blur(16px) saturate(1.4);-webkit-backdrop-filter:blur(16px) saturate(1.4);background:rgba(240,249,255,.75);border-bottom:1px solid rgba(12,74,110,.08);transition:background .25s,box-shadow .25s}
.site-header.scrolled{background:rgba(255,255,255,.9);box-shadow:0 4px 24px -12px rgba(12,74,110,.15)}
.nav-inner{max-width:1180px;margin:0 auto;padding:.75rem 1.25rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}
.logo{display:inline-flex;align-items:center;line-height:0}
.logo img{height:72px;width:auto;display:block}
.nav-toggle{background:transparent;border:0;color:var(--color-neutral-dark);padding:.5rem;cursor:pointer;border-radius:8px}
.nav-toggle:hover{background:rgba(12,74,110,.06)}
.primary-nav{display:none;flex-direction:column;gap:.25rem;width:100%;padding-top:.5rem}
.primary-nav.open{display:flex}
.primary-nav a{position:relative;padding:.6rem .25rem;color:var(--color-neutral-dark);font-weight:500;font-size:.95rem}
.primary-nav a[aria-current="page"]{color:var(--color-primary)}
@media (min-width:900px){
  .nav-toggle{display:none}
  .primary-nav{display:flex;flex-direction:row;align-items:center;width:auto;padding:0;gap:1.75rem}
  .primary-nav a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--color-primary);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease)}
  .primary-nav a:hover{text-decoration:none}
  .primary-nav a:hover::after,.primary-nav a[aria-current="page"]::after{transform:scaleX(1)}
}
@media (min-width:768px){
  .logo img{height:96px}
}

/* === Buttons === */
.btn{display:inline-block;padding:.85rem 1.75rem;border-radius:999px;font-weight:600;font-family:var(--font-body);font-size:.95rem;border:0;cursor:pointer;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn:focus-visible{outline:3px solid var(--color-secondary);outline-offset:2px}
.btn-primary{background:linear-gradient(135deg,var(--color-primary),var(--color-neutral-dark));color:#fff;box-shadow:0 8px 20px -6px rgba(3,105,161,.5)}
.btn-primary:hover{box-shadow:0 14px 28px -8px rgba(3,105,161,.6);color:#fff}
.btn-accent{background:linear-gradient(135deg,var(--color-accent),#16a34a);color:#fff;box-shadow:0 8px 20px -6px rgba(34,197,94,.4)}
.btn-accent:hover{color:#fff}
.btn-ghost{background:rgba(255,255,255,.7);color:var(--color-neutral-dark);border:1px solid rgba(12,74,110,.15);backdrop-filter:blur(8px)}
.btn-ghost:hover{background:#fff}

/* === Hero === */
.hero{position:relative;overflow:hidden;padding-block:3.5rem;background:linear-gradient(135deg,#F0F9FF 0%,#E0F2FE 100%)}
.hero-glow{position:absolute;inset:0;pointer-events:none;background:radial-gradient(600px 400px at 80% 20%,rgba(56,189,248,.25),transparent 60%),radial-gradient(500px 300px at 10% 80%,rgba(34,197,94,.12),transparent 60%)}
.hero-grid{position:relative;max-width:1180px;margin:0 auto;padding-inline:1.25rem;display:grid;grid-template-columns:1fr;gap:2.5rem;align-items:center}
.hero-grid.single{max-width:760px;text-align:center}
.hero-copy .eyebrow,.eyebrow{font-size:.8rem;letter-spacing:.15em;text-transform:uppercase;color:var(--color-primary);font-weight:600;margin-bottom:.75rem}
.hero-copy .lead,.lead{font-size:1.125rem;color:#334155;max-width:52ch;margin-bottom:1.75rem}
.hero-copy.center{margin-inline:auto}
.hero-copy.center .lead{margin-inline:auto}
.hero-ctas{display:flex;flex-wrap:wrap;gap:.75rem}
.hero-media img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}
@media (min-width:768px){
  .hero{padding-block:5rem}
  .hero-grid{grid-template-columns:1.05fr .95fr;gap:4rem}
  .hero-media img{aspect-ratio:4/5}
}

/* === Intro paragraph === */
.intro{padding-block:4rem}
.intro .container{text-align:left}
.intro h2{margin-bottom:1rem}
.intro p{font-size:1.075rem;color:#1f3a52;line-height:1.85}
.intro.alt{background:var(--color-neutral-light)}

/* === Section band === */
.section-band{padding-block:4rem;background:#fff}
.section-title{text-align:center;margin-bottom:2.5rem}
.section-lede{text-align:center;max-width:640px;margin:0 auto 2.5rem;color:#475569}

/* === Cards === */
.card-grid{display:grid;grid-template-columns:1fr;gap:1.25rem}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:960px){.card-grid{grid-template-columns:repeat(4,1fr)}.card-grid.three{grid-template-columns:repeat(3,1fr)}}
.card{background:#fff;border:1px solid rgba(12,74,110,.08);border-radius:var(--radius);padding:1.75rem;box-shadow:var(--shadow-sm);transition:transform .25s var(--ease),box-shadow .25s var(--ease)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.card h3{margin-top:.75rem;margin-bottom:.5rem}
.card p{color:#475569;font-size:.975rem;margin:0}
.card-icon{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,rgba(56,189,248,.2),rgba(3,105,161,.15));color:var(--color-primary)}

/* === Testimonial === */
.testimonial{padding-block:4rem;background:linear-gradient(135deg,var(--color-neutral-light),#fff)}
.testimonial blockquote{margin:0;text-align:center;position:relative}
.testimonial blockquote p{font-family:var(--font-heading);font-size:clamp(1.15rem,2.2vw,1.5rem);line-height:1.6;color:var(--color-neutral-dark);margin-bottom:1.25rem}
.testimonial cite{font-style:normal;color:var(--color-primary);font-weight:600;font-size:.95rem}

/* === CTA band === */
.cta-band{background:linear-gradient(135deg,var(--color-primary),var(--color-neutral-dark));color:#fff;padding-block:4rem;text-align:center;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(500px 300px at 30% 20%,rgba(56,189,248,.3),transparent 60%),radial-gradient(400px 250px at 80% 80%,rgba(34,197,94,.15),transparent 60%);pointer-events:none}
.cta-band .container{position:relative}
.cta-band h2{color:#fff;margin-bottom:.75rem}
.cta-band p{color:rgba(240,249,255,.9);margin-bottom:1.5rem}

/* === FAQ === */
.faq{padding-block:3.5rem}
.faq h2{margin-bottom:1.5rem}
.faq details{background:#fff;border:1px solid rgba(12,74,110,.1);border-radius:12px;padding:1rem 1.25rem;margin-bottom:.75rem;box-shadow:var(--shadow-sm);transition:box-shadow .2s}
.faq details[open]{box-shadow:var(--shadow-md)}
.faq summary{cursor:pointer;font-weight:600;color:var(--color-neutral-dark);font-family:var(--font-heading);font-size:1.05rem;padding:.25rem 0;list-style:none}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";float:right;color:var(--color-primary);font-size:1.5rem;line-height:1;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{margin-top:.75rem;color:#475569;line-height:1.75}

/* === Contact form === */
.form-section{padding-block:4rem;background:var(--color-neutral-light)}
.contact-form{background:#fff;padding:2rem;border-radius:var(--radius);box-shadow:var(--shadow-md);border:1px solid rgba(12,74,110,.08)}
.field{margin-bottom:1.25rem}
.field label{display:block;font-weight:600;font-size:.9rem;color:var(--color-neutral-dark);margin-bottom:.4rem}
.field input,.field textarea{width:100%;padding:.75rem .9rem;font-family:var(--font-body);font-size:1rem;border:1px solid rgba(12,74,110,.2);border-radius:10px;background:#fff;color:var(--color-neutral-dark);transition:border-color .2s,box-shadow .2s}
.field input:focus,.field textarea:focus{outline:0;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(3,105,161,.15)}
.field textarea{resize:vertical;min-height:140px}
.form-consent{display:flex;gap:.6rem;align-items:flex-start;font-size:.875rem;color:#475569;line-height:1.55;margin:.5rem 0 1.5rem}
.form-consent input{margin-top:.2rem;flex-shrink:0}
.form-success{background:rgba(34,197,94,.12);border:1px solid var(--color-accent);color:#166534;padding:1rem;border-radius:10px;margin-top:1rem}

/* === Footer === */
.site-footer{background:var(--color-neutral-dark);color:#e0f2fe;padding-block:3rem 1.5rem;margin-top:3rem}
.footer-grid{display:grid;grid-template-columns:1fr;gap:2rem}
@media (min-width:768px){.footer-grid{grid-template-columns:1.3fr 1fr 1.3fr}}
.site-footer .logo img{height:64px;filter:brightness(0) invert(1)}
.site-footer .tagline{color:rgba(224,242,254,.75);font-size:.9rem;margin-top:.75rem}
.site-footer h3{color:#fff;font-size:1rem;margin-bottom:.9rem;font-family:var(--font-body);font-weight:600}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:.4rem}
.site-footer a{color:#e0f2fe}
.site-footer a:hover{color:var(--color-secondary)}
.site-footer address{font-style:normal;color:rgba(224,242,254,.85);font-size:.9rem;line-height:1.7;margin-bottom:1rem}
.legal-links{display:flex;flex-wrap:wrap;gap:.75rem;font-size:.85rem;padding-top:.5rem;border-top:1px solid rgba(224,242,254,.15)}
.copyright{text-align:center;color:rgba(224,242,254,.6);font-size:.85rem;margin:2rem 0 0;padding-top:1.5rem;border-top:1px solid rgba(224,242,254,.1)}

/* === 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);box-shadow:0 20px 60px -10px rgba(0,0,0,.4);max-width:640px;margin-inline:auto}
.cookie-banner.is-visible{display:block}
.cookie-banner p{margin:0 0 1rem;font-size:.9rem;line-height:1.6}
.cookie-banner__actions{display:flex;flex-wrap:wrap;gap:.5rem}
.cookie-banner__actions button{padding:.55rem 1rem;border-radius:8px;border:0;cursor:pointer;font-family:var(--font-body);font-size:.85rem;font-weight:600;transition:transform .15s}
.cookie-banner__actions button:hover{transform:translateY(-1px)}
.cookie-banner__actions [data-cookie-accept]{background:var(--color-accent);color:#fff}
.cookie-banner__actions [data-cookie-reject]{background:rgba(240,249,255,.15);color:var(--color-neutral-light)}
.cookie-banner__actions [data-cookie-settings]{background:transparent;color:var(--color-neutral-light);border:1px solid rgba(240,249,255,.3)}
.cookie-banner__prefs{margin-top:1rem;display:flex;flex-direction:column;gap:.5rem;padding-top:1rem;border-top:1px solid rgba(240,249,255,.15)}
.cookie-banner__prefs label{display:flex;align-items:center;gap:.5rem;font-size:.9rem}
.cookie-banner__prefs [data-cookie-save]{align-self:flex-start;margin-top:.5rem;padding:.55rem 1rem;border-radius:8px;border:0;background:var(--color-accent);color:#fff;cursor:pointer;font-weight:600}

/* === Reveal animations === */
.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}}