/* stemivy site: white education-report style. Single light look on purpose; no background decoration. */
@font-face { font-family: 'Pretendard'; src: url('/assets/fonts/PretendardVariable.woff2') format('woff2'); font-weight: 45 920; font-style: normal; font-display: swap; }
:root {
  --ink: #0E1A3A; --blue: #2453C9; --soft: #F5F7FB; --navy: #0F2147;
  --muted: #4F5A72; --faint: #7A8499; --line: #E1E6F0; --paper: #FFFFFF;
  --blue-soft: #E8EEFB; --on-navy: #FFFFFF; --on-navy-muted: #B9C5E0;
  --sans: 'Pretendard', -apple-system, 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
  color-scheme: light;
}
* { box-sizing: border-box; }
html { background: var(--paper); scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 16.5px; line-height: 1.75; word-break: keep-all; overflow-wrap: anywhere; -webkit-font-smoothing: antialiased; }
a { color: var(--blue); text-underline-offset: 3px; }
img { max-width: 100%; height: auto; }
.wrap { max-width: 1080px; margin: 0 auto; padding-inline: max(20px, env(safe-area-inset-left, 0px)); }
h1, h2, h3 { color: var(--ink); margin: 0; text-wrap: balance; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }

/* header */
header.top { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); }
.bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 800; font-size: 19px; letter-spacing: -.01em; white-space: nowrap; }
.mark { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 7px; background: var(--navy); color: #fff; font-size: 16px; font-weight: 800; line-height: 1; }
.brand.small { font-size: 16px; } .brand.small .mark { width: 22px; height: 22px; font-size: 13px; border-radius: 6px; }
nav { display: flex; align-items: center; gap: 2px; min-width: 0; }
nav a { color: var(--muted); text-decoration: none; font-size: 14.5px; font-weight: 600; padding: 7px 11px; border-radius: 8px; white-space: nowrap; }
nav a:hover { color: var(--ink); background: var(--soft); }
nav a[aria-current="page"] { color: var(--blue); }
nav a.nav-cta { background: var(--blue); color: #fff; margin-left: 6px; }
nav a.nav-cta:hover { background: #1C45AE; color: #fff; }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 46px; padding: 11px 22px; border-radius: 10px; background: var(--blue); color: #fff; font-weight: 700; font-size: 15.5px; text-decoration: none; border: 2px solid var(--blue); }
.btn:hover { background: #1C45AE; border-color: #1C45AE; }
.btn.ghost-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.45); }
.btn.ghost-light:hover { border-color: #fff; background: rgba(255,255,255,.08); }
.btn.outline { background: #fff; color: var(--blue); }
.btn.outline:hover { background: var(--blue-soft); }

/* hero: solid navy panel */
.hero { background: var(--navy); color: var(--on-navy); padding-block: 88px 76px; }
.hero h1 { color: #fff; font-weight: 800; font-size: clamp(31px, 5.4vw, 52px); line-height: 1.28; letter-spacing: -.03em; margin-bottom: 22px; max-width: 18em; }
.eyebrow { margin: 0 0 20px; font-size: 14px; font-weight: 700; letter-spacing: .04em; color: #9DB7F5; }
.lede { margin: 0 0 32px; font-size: 18.5px; color: var(--on-navy-muted); max-width: 34em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-note { margin: 18px 0 0; font-size: 14.5px; color: var(--on-navy-muted); }

/* sections */
section { padding-block: 76px; }
section.tint { background: var(--soft); }
.sec-head { max-width: 680px; margin-bottom: 32px; }
.kick { margin: 0 0 10px; font-size: 13.5px; font-weight: 700; letter-spacing: .06em; color: var(--blue); }
h2 { font-weight: 800; font-size: clamp(25px, 3.4vw, 34px); line-height: 1.35; letter-spacing: -.025em; margin-bottom: 10px; }
.sec-head p:not(.kick) { margin: 0; color: var(--muted); }

.grid4, .grid3 { display: grid; gap: 16px; }
.grid4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card { background: var(--soft); border: 1px solid var(--line); border-radius: 14px; padding: 24px 24px 22px; display: flex; flex-direction: column; gap: 8px; min-width: 0; color: inherit; text-decoration: none; }
.tint .card { background: #fff; }
.card h3 { font-size: 18px; font-weight: 700; line-height: 1.45; letter-spacing: -.01em; }
.card p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.7; }
.card .num { font-weight: 800; font-size: 44px; line-height: 1.05; letter-spacing: -.03em; color: var(--blue); font-variant-numeric: tabular-nums; }
.card .num small { font-size: 15px; font-weight: 700; letter-spacing: 0; margin-left: 5px; color: var(--muted); }
.tag { font-size: 12.5px; font-weight: 700; letter-spacing: .06em; color: var(--blue); }
.card.link { transition: border-color .15s, box-shadow .15s; }
.card.link:hover { border-color: var(--blue); box-shadow: 0 6px 20px rgba(14,26,58,.08); }
.more { margin: 28px 0 0; }

.chan { list-style: none; margin: 0; padding: 0; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
.chan li { display: grid; grid-template-columns: 9em minmax(0, 1fr); gap: 16px; padding: 16px 24px; border-top: 1px solid var(--line); align-items: baseline; }
.chan li:first-child { border-top: 0; }
.chan b { font-weight: 700; font-size: 17px; }
.chan span { color: var(--muted); font-size: 15.5px; }

.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.steps li { background: #fff; border: 1px solid var(--line); border-top: 3px solid var(--blue); border-radius: 12px; padding: 22px 24px; display: grid; gap: 6px; align-content: start; }
.sn { font-size: 13px; font-weight: 800; letter-spacing: .08em; color: var(--blue); }
.steps b { font-size: 18px; font-weight: 700; }
.steps p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.7; }

.why { list-style: none; margin: 0 0 16px; padding: 0; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
.why li { padding: 20px 24px 20px 50px; border-top: 1px solid var(--line); position: relative; }
.why li:first-child { border-top: 0; }
.why li::before { content: ""; position: absolute; left: 24px; top: 31px; width: 9px; height: 9px; border-radius: 2px; background: var(--blue); }
.why b { display: block; font-size: 17px; font-weight: 700; margin-bottom: 2px; }
.why p { margin: 0; color: var(--muted); font-size: 15px; }

.contact { background: var(--navy); color: var(--on-navy); border-radius: 16px; padding: 40px 40px; display: flex; flex-wrap: wrap; gap: 24px 32px; align-items: center; justify-content: space-between; }
.contact .t { flex: 1 1 380px; min-width: 0; }
.contact h2 { color: #fff; margin-bottom: 8px; }
.contact p { margin: 0; color: var(--on-navy-muted); font-size: 15.5px; }
.inq { flex: 1 1 100%; display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; min-width: 0; }
.inq label { display: flex; flex-direction: column; gap: 6px; font-size: 14.5px; font-weight: 600; color: #fff; min-width: 0; }
.inq .lb span { font-weight: 400; color: var(--on-navy-muted); font-size: 13px; margin-left: 4px; }
.inq .full { grid-column: 1 / -1; }
.inq input, .inq textarea { font: inherit; font-size: 16px; font-weight: 400; color: var(--ink); background: #fff; border: 1px solid transparent; border-radius: 10px; padding: 11px 13px; width: 100%; min-width: 0; }
.inq textarea { resize: vertical; min-height: 110px; }
.inq input:focus, .inq textarea:focus { outline: 2px solid #9CC3FF; outline-offset: 1px; }
.inq .consent { flex-direction: row; align-items: flex-start; gap: 10px; font-weight: 400; font-size: 13.5px; line-height: 1.6; color: var(--on-navy-muted); }
.inq .consent input { width: 18px; height: 18px; flex: none; margin-top: 2px; padding: 0; }
.inq fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
.inq legend { padding: 0; margin-bottom: 8px; font-size: 14.5px; font-weight: 600; color: #fff; }
.inq .chips { display: flex; flex-wrap: wrap; gap: 8px; }
.inq .chip { position: relative; display: inline-flex; flex-direction: row; font-weight: 500; font-size: 14.5px; }
.inq .chip input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.inq .chip span { display: inline-block; padding: 8px 14px; border-radius: 999px; border: 1px solid rgba(255,255,255,.28); color: #fff; cursor: pointer; transition: background .15s, border-color .15s; }
.inq .chip:hover span { border-color: rgba(255,255,255,.6); }
.inq .chip input:checked + span { background: #fff; color: var(--ink); border-color: #fff; }
.inq .chip input:focus-visible + span { outline: 2px solid #9CC3FF; outline-offset: 2px; }
.inq .hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.inq .row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 16px; }
.inq .msg { margin: 0; font-size: 14.5px; }
.inq .msg.ok { color: #9CC3FF; }
.inq .msg.err { color: #FFB4B4; }
button:disabled { opacity: .6; cursor: default; }
@media (max-width: 560px) { .inq { grid-template-columns: 1fr; } .contact { padding: 28px 20px; } }
button { font: inherit; font-size: 15px; font-weight: 700; background: #fff; color: var(--navy); border: 0; min-height: 46px; padding: 11px 18px; border-radius: 10px; cursor: pointer; }
button:hover { background: var(--blue-soft); }

footer { border-top: 1px solid var(--line); }
.foot { display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; align-items: center; padding-block: 28px 36px; color: var(--faint); font-size: 13.5px; }

/* sample notice band */
.notice { background: var(--navy); color: #fff; text-align: center; font-size: 14.5px; font-weight: 600; padding: 9px 16px; }

@media (max-width: 920px) {
  .grid4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid3, .steps { grid-template-columns: minmax(0, 1fr); }
  nav a.opt { display: none; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .wrap { padding-inline: 16px; }
  .bar { height: 58px; }
  .brand { font-size: 17px; }
  nav a { font-size: 14px; padding: 7px 8px; }
  nav a.nav-cta { margin-left: 2px; }
  .hero { padding-block: 56px 52px; }
  .lede { font-size: 17px; }
  .hero-actions .btn { flex: 1 1 100%; }
  section { padding-block: 56px; }
  .grid4 { grid-template-columns: minmax(0, 1fr); }
  .card { padding: 20px; }
  .chan li { grid-template-columns: minmax(0, 1fr); gap: 2px; padding: 14px 18px; }
  .why li { padding: 18px 18px 18px 40px; }
  .why li::before { left: 18px; top: 29px; }
  .contact { padding: 28px 20px; }
}