:root {
  --bg: #0b1220;
  --bg-alt: #0f1830;
  --card: #131f3a;
  --text: #e7ecf5;
  --muted: #9aa7c2;
  --brand: #4f8cff;
  --brand-2: #7c5cff;
  --border: #223153;
  --ok: #2fbf71;
  --err: #ff6b6b;
  --radius: 14px;
  --maxw: 1080px;
  font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Pretendard",
    "Malgun Gothic", "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.container.narrow { max-width: 720px; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(11, 18, 32, 0.85);
  backdrop-filter: saturate(150%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.brand { font-weight: 800; font-size: 20px; color: var(--text); letter-spacing: -0.02em; }
.brand span { color: var(--brand); margin-left: 4px; }
.nav nav { display: flex; align-items: center; gap: 22px; }
.nav nav a { color: var(--muted); font-size: 15px; }
.nav nav a:hover { color: var(--text); text-decoration: none; }
.nav-cta {
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff !important; padding: 8px 16px; border-radius: 999px; font-weight: 600;
}

/* Hero */
.hero { padding: 96px 0 72px; background: radial-gradient(1200px 500px at 70% -10%, rgba(79,140,255,0.18), transparent 60%); }
.eyebrow { color: var(--brand); font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; font-size: 13px; margin: 0 0 14px; }
.hero h1 { font-size: clamp(32px, 6vw, 56px); line-height: 1.12; margin: 0 0 20px; letter-spacing: -0.03em; font-weight: 800; }
.lead { font-size: clamp(16px, 2.4vw, 20px); color: var(--muted); margin: 0 0 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* Buttons */
.btn { display: inline-block; padding: 13px 24px; border-radius: 999px; font-weight: 600; font-size: 16px; border: 1px solid transparent; cursor: pointer; transition: transform .06s ease, opacity .2s ease; }
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #fff; }
.btn-primary:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn-block { width: 100%; margin-top: 8px; font-size: 17px; }

/* Sections */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section h2 { font-size: clamp(24px, 4vw, 34px); margin: 0 0 36px; letter-spacing: -0.02em; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

/* Services grid */
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.feature { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.feature h3 { margin: 0 0 10px; font-size: 18px; }
.feature p { margin: 0; color: var(--muted); font-size: 15px; }

/* Steps */
.steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.steps li { display: flex; gap: 18px; align-items: flex-start; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 22px; }
.step-num { flex: 0 0 40px; width: 40px; height: 40px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #fff; }
.steps h3 { margin: 2px 0 6px; font-size: 17px; }
.steps p { margin: 0; color: var(--muted); font-size: 15px; }

/* Form */
.form { margin-top: 24px; display: grid; gap: 18px; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: grid; gap: 8px; }
.field > span { font-size: 14px; color: var(--muted); }
.field em, .consent em { color: var(--brand); font-style: normal; }
input, select, textarea {
  width: 100%; padding: 12px 14px; border-radius: 10px;
  background: var(--bg-alt); border: 1px solid var(--border); color: var(--text);
  font-size: 15px; font-family: inherit;
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--brand); outline-offset: 1px; border-color: var(--brand); }
textarea { resize: vertical; min-height: 120px; }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--muted); }
.consent input { width: auto; margin-top: 3px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-status { margin: 6px 0 0; font-size: 14px; min-height: 20px; }
.form-status.ok { color: var(--ok); }
.form-status.err { color: var(--err); white-space: pre-line; }

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 40px 0; }
.brand-sm { font-weight: 800; margin: 0 0 4px; }

@media (max-width: 600px) {
  .row { grid-template-columns: 1fr; }
  .nav nav { gap: 14px; }
  .nav nav a:not(.nav-cta) { display: none; }
  .hero { padding: 64px 0 48px; }
}

/* ---------------------------------------------------------------------------
 * 관리자 페이지
 * ------------------------------------------------------------------------- */
body.admin { padding: 0; }
.admin-wrap { max-width: 880px; margin: 0 auto; padding: 32px 20px 80px; }
.admin-wrap h1 { font-size: 26px; margin: 0 0 24px; }
.admin-wrap h1 small { color: var(--muted); font-size: 16px; font-weight: 400; }
.admin .empty { color: var(--muted); }
.admin .card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 22px; margin-bottom: 16px; }
.admin .card header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; flex-wrap: wrap; }
.admin .card header time { margin-left: auto; color: var(--muted); font-size: 13px; }
.badge { background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #fff; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; }
.admin dl { display: grid; grid-template-columns: 80px 1fr; gap: 4px 12px; margin: 0 0 12px; font-size: 14px; }
.admin dt { color: var(--muted); }
.admin dd { margin: 0; }
.admin .msg { background: var(--bg-alt); border: 1px solid var(--border); border-radius: 10px; padding: 14px; white-space: pre-wrap; word-break: break-word; font-family: inherit; font-size: 14px; margin: 0; }