:root {
    --brand: #0f3d91;
    --brand-2: #2563eb;
    --ink: #0f172a;
    --muted: #5b6475;
    --line: #e5e8ef;
    --bg: #ffffff;
    --bg-alt: #f5f7fb;
    --ok: #16a34a;
    --warn: #d97706;
    --radius: 14px;
    --shadow: 0 10px 30px rgba(15, 23, 42, .08);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic", "Segoe UI", Roboto, sans-serif;
    color: var(--ink); background: var(--bg); line-height: 1.65; word-break: keep-all;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 20px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--brand); color: #fff; padding: 8px 12px; border-radius: 8px; z-index: 200; }
.skip:focus { left: 8px; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.eyebrow { color: var(--brand-2); font-weight: 700; font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; margin-bottom: .5rem; }
h1 { font-size: clamp(1.9rem, 4.6vw, 3rem); line-height: 1.25; letter-spacing: -.02em; }
h2 { font-size: clamp(1.5rem, 3.2vw, 2.1rem); line-height: 1.3; letter-spacing: -.02em; }
h3 { font-size: 1.1rem; }

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .4rem;
    background: var(--brand); color: #fff; font-weight: 700; border-radius: 10px;
    padding: .85rem 1.3rem; transition: background .15s, transform .15s; border: 1px solid transparent;
}
.btn:hover { background: var(--brand-2); transform: translateY(-1px); }
.btn:focus-visible, a:focus-visible, button:focus-visible { outline: 3px solid #93c5fd; outline-offset: 2px; }
.btn-sm { padding: .5rem .9rem; font-size: .9rem; }
.btn-ghost { background: transparent; color: var(--brand); border-color: var(--line); }
.btn-ghost:hover { background: var(--bg-alt); }
.btn-light { background: #fff; color: var(--brand); }
.btn-light:hover { background: #eef3ff; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.92); backdrop-filter: saturate(180%) blur(10px); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { display: flex; align-items: center; gap: .5rem; color: var(--brand); font-weight: 800; font-size: 1.15rem; }
.logo span { color: var(--ink); }
.logo b { color: var(--brand); margin-left: 2px; }
.menu { display: flex; align-items: center; gap: 1.6rem; font-weight: 600; font-size: .95rem; }
.menu a:not(.btn):hover { color: var(--brand-2); }
.nav-toggle { display: none; background: none; border: 0; width: 40px; height: 40px; cursor: pointer; }
.nav-toggle span { display: block; height: 2px; background: var(--ink); margin: 6px 8px; border-radius: 2px; transition: .2s; }

/* Hero */
.hero { padding: 72px 0 64px; background: radial-gradient(1000px 400px at 85% 0%, #e8efff 0%, transparent 60%); }
.hero-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 40px; align-items: center; }
.lead { color: var(--muted); font-size: 1.08rem; margin: 1.1rem 0 1.8rem; max-width: 36em; }
.hero-cta { display: flex; gap: .75rem; flex-wrap: wrap; }
.hero-visual { position: relative; min-height: 300px; }
.globe { width: 100%; max-width: 440px; margin: 0 auto; }
.card-float { position: absolute; background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow); border-radius: 12px; padding: .6rem .9rem; font-size: .88rem; display: flex; align-items: center; gap: .5rem; white-space: nowrap; }
.card-float b { color: var(--ok); }
.c1 { top: 8%; left: 0; } .c2 { top: 44%; right: 0; } .c3 { bottom: 4%; left: 12%; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: #9ca3af; display: inline-block; flex-shrink: 0; }
.dot.ok { background: var(--ok); box-shadow: 0 0 0 4px rgba(22,163,74,.15); }

/* Sections */
.section { padding: 80px 0; }
.section.alt { background: var(--bg-alt); }
.section-head { text-align: center; margin-bottom: 44px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; transition: box-shadow .2s, transform .2s; }
.feature:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.feature .icon { color: var(--brand); width: 52px; height: 52px; display: grid; place-items: center; background: #eef3ff; border-radius: 12px; margin-bottom: 16px; }
.feature p { color: var(--muted); margin-top: .5rem; font-size: .95rem; }

.why-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 48px; align-items: start; }
.why-grid h2 { margin-bottom: 1rem; }
.checks { list-style: none; display: grid; gap: 14px; }
.checks li { background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px 18px 52px; position: relative; }
.checks li::before { content: ""; position: absolute; left: 18px; top: 17px; width: 22px; height: 22px; border-radius: 50%; background: var(--brand); }
.checks li::after { content: ""; position: absolute; left: 25px; top: 22px; width: 6px; height: 10px; border: solid #fff; border-width: 0 2px 2px 0; transform: rotate(45deg); }
.checks b { display: block; margin-bottom: 2px; }
.checks span { color: var(--muted); font-size: .93rem; }

.steps { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: s; }
.steps li { border-top: 3px solid var(--brand); padding-top: 18px; }
.steps span { font-weight: 800; color: var(--brand-2); font-size: .9rem; }
.steps h3 { margin: .3rem 0; }
.steps p { color: var(--muted); font-size: .93rem; }

.cta { padding: 64px 0; }
.cta-box { background: linear-gradient(120deg, var(--brand), var(--brand-2)); color: #fff; border-radius: 20px; padding: 44px; display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.cta-box p { opacity: .85; margin-top: .4rem; }
.cta-actions { display: flex; flex-direction: column; align-items: flex-end; gap: .5rem; }
.hours { font-size: .85rem; opacity: .85; }

/* Footer */
.site-footer { border-top: 1px solid var(--line); padding: 36px 0 28px; }
.foot { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; align-items: flex-start; }
.logo-sm { font-size: 1rem; margin-bottom: .3rem; }
.foot-links { display: flex; gap: 1.2rem; align-items: center; flex-wrap: wrap; font-size: .9rem; color: var(--muted); }
.foot-links a:hover { color: var(--ink); }
.copy { margin-top: 20px; }
.status { display: inline-flex; align-items: center; gap: .45rem; border: 1px solid var(--line); border-radius: 999px; padding: .3rem .75rem; font-size: .82rem; }
.status[data-state="operational"] .dot { background: var(--ok); }
.status[data-state="degraded"] .dot { background: var(--warn); }

.center-page { text-align: center; min-height: 70vh; display: grid; place-items: center; }
.center-page .lead { margin-left: auto; margin-right: auto; }

/* Responsive */
@media (max-width: 900px) {
    .hero-grid, .why-grid { grid-template-columns: 1fr; }
    .hero-visual { min-height: 240px; }
    .grid-3 { grid-template-columns: 1fr; }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .cta-actions { align-items: flex-start; }
}
@media (max-width: 760px) {
    .nav-toggle { display: block; }
    .menu { position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: #fff; border-bottom: 1px solid var(--line); padding: 8px 20px 16px; display: none; }
    .menu.open { display: flex; }
    .menu a { padding: .8rem 0; border-bottom: 1px solid var(--line); }
    .menu a.btn { margin-top: .8rem; border-bottom: 0; }
    .hero { padding: 48px 0; }
    .section { padding: 56px 0; }
    .cta-box { padding: 28px; }
}
@media (max-width: 480px) {
    .steps { grid-template-columns: 1fr; }
    .card-float { font-size: .78rem; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    * { transition: none !important; }
}