:root{
  --blue:#0e004e;
  --blue-dark:#0c0036;
  --text:#101722;
  --muted:#566170;
  --line:#e7ecf1;
  --container:1180px;
  --font:-apple-system,BlinkMacSystemFont,"Pretendard Variable",Pretendard,"Noto Sans KR",system-ui,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--text);line-height:1.65;letter-spacing:-.02em;background:#f6f9fc}
a{text-decoration:none;color:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 28px}
.header{position:sticky;top:0;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid #fff;z-index:50}
.nav-wrap{height:72px;display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px;color:var(--blue);font-weight:950;line-height:1}
.logo img{height:130px}
.nav{display:flex;gap:30px;color:#4d5868;font-weight:800;font-size:15px}
.nav a:hover{color:var(--blue)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:15px 30px;border-radius:999px;font-size:15px;font-weight:900;border:1px solid transparent;transition:.22s ease;cursor:pointer}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 16px 32px -22px rgba(4,134,230,.95)}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-2px)}
.btn-ghost{background:#fff;border-color:rgba(14,0,78,.18);color:var(--blue)}
.btn-ghost:hover{border-color:rgba(14,0,78,.36);transform:translateY(-2px)}
.signup-page{min-height:calc(100vh - 72px);padding:86px 0 110px;background:
  linear-gradient(90deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.86) 48%,rgba(246,249,252,.92) 100%),
  url('images/about.jpg') right center/cover no-repeat}
.signup-shell{display:grid;grid-template-columns:.82fr 1.18fr;gap:36px;align-items:start}
.signup-copy{padding-top:18px}
.kicker{display:inline-block;color:var(--blue);font-size:13px;font-weight:950;letter-spacing:.18em;text-transform:uppercase;margin-bottom:18px}
.signup-copy h1{font-size:clamp(38px,4vw,58px);font-weight:950;line-height:1.14;letter-spacing:-.06em;margin:0 0 18px;color:#111722;word-break:keep-all}
.signup-copy p{font-size:18px;color:#334154;font-weight:650;word-break:keep-all;max-width:520px;margin:0 0 28px}
.copy-points{display:grid;gap:12px;margin-top:28px;max-width:460px}
.copy-points span{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:850;color:#526071}
.copy-points span::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--blue);flex:0 0 auto}
.signup-card,.complete-card,.admin-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:34px;box-shadow:0 22px 56px -44px rgba(7,20,33,.42)}
.signup-card h2,.admin-card h2{font-size:28px;line-height:1.25;margin:0 0 8px;color:#111722;letter-spacing:-.04em}
.form-note{font-size:14px;color:#6a7483;margin:0 0 26px;font-weight:700}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.form-field{display:flex;flex-direction:column;gap:7px;font-size:13px;font-weight:900;color:#263140}
.form-field.full{grid-column:1/-1}
.form-field input{width:100%;height:52px;border:1px solid #dbe3ec;border-radius:12px;background:#fbfdff;padding:0 15px;font:inherit;font-size:15px;color:#101722;outline:none;transition:border-color .2s ease, box-shadow .2s ease, background .2s ease}
.form-field input:focus{border-color:rgba(14,0,78,.58);background:#fff;box-shadow:0 0 0 4px rgba(14,0,78,.08)}
.consent{display:flex;align-items:flex-start;gap:10px;margin:20px 0 24px;color:#566170;font-size:14px;font-weight:750;line-height:1.5;word-break:keep-all}
.consent input{width:18px;height:18px;margin-top:2px;accent-color:var(--blue);flex:0 0 auto}
.form-actions{display:flex;gap:12px;flex-wrap:wrap}
.form-actions .btn-primary{border:0}
.status-message{display:none;margin:0 0 20px;padding:14px 16px;border-radius:12px;font-size:14px;font-weight:800;line-height:1.55}
.status-message.show{display:block}
.status-message.error{background:#fff1f2;color:#be123c;border:1px solid #fecdd3}
.status-message.success{background:#ecfdf5;color:#047857;border:1px solid #bbf7d0}
.complete-page{min-height:calc(100vh - 72px);display:grid;place-items:center;padding:80px 28px;background:#f6f9fc}
.complete-card{max-width:680px;text-align:center}
.complete-mark{width:70px;height:70px;border-radius:50%;display:grid;place-items:center;background:rgba(14,0,78,.08);color:var(--blue);font-size:34px;font-weight:950;margin:0 auto 24px}
.complete-card h1{font-size:clamp(34px,4vw,52px);line-height:1.16;letter-spacing:-.05em;margin:0 0 16px}
.complete-card p{color:#566170;font-size:17px;font-weight:650;margin:0 0 28px;word-break:keep-all}
.admin-page{min-height:calc(100vh - 72px);padding:72px 0 100px;background:#f6f9fc}
.admin-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.admin-head h1{font-size:clamp(34px,3.6vw,48px);line-height:1.18;letter-spacing:-.05em;margin:0;color:#111722}
.admin-head p{color:#566170;font-size:16px;font-weight:700;margin:8px 0 0}
.admin-toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px}
.admin-user{font-size:14px;color:#566170;font-weight:800}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px;background:#fff}
.member-table{width:100%;border-collapse:collapse;min-width:920px}
.member-table th,.member-table td{padding:14px 16px;border-bottom:1px solid #edf2f7;text-align:left;font-size:14px;vertical-align:top}
.member-table th{background:#f8fafc;color:#344253;font-weight:950;white-space:nowrap}
.member-table td{color:#334154;font-weight:700}
.member-table tr:last-child td{border-bottom:0}
.badge{display:inline-flex;align-items:center;height:28px;padding:0 10px;border-radius:999px;background:#eef2ff;color:var(--blue);font-size:12px;font-weight:950;white-space:nowrap}
.empty-state{padding:30px;text-align:center;color:#64748b;font-size:15px;font-weight:800}
.policy-page{min-height:calc(100vh - 72px);padding:86px 0 110px;background:
  linear-gradient(90deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.9) 52%,rgba(246,249,252,.94) 100%),
  url('images/about.jpg') right center/cover no-repeat}
.policy-shell{display:grid;grid-template-columns:.7fr 1.3fr;gap:34px;align-items:start}
.policy-copy h1{font-size:clamp(38px,4vw,58px);font-weight:950;line-height:1.14;letter-spacing:-.06em;margin:0 0 18px;color:#111722;word-break:keep-all}
.policy-copy p{font-size:18px;color:#334154;font-weight:650;word-break:keep-all;max-width:480px;margin:0}
.policy-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:38px;box-shadow:0 22px 56px -44px rgba(7,20,33,.42)}
.policy-section{padding:26px 0;border-bottom:1px solid #edf2f7}
.policy-section:first-child{padding-top:0}
.policy-section:last-child{padding-bottom:0;border-bottom:0}
.policy-section h2{font-size:22px;line-height:1.28;margin:0 0 12px;color:#111722;letter-spacing:-.035em}
.policy-section p,.policy-section li{font-size:16px;color:#475569;font-weight:700;line-height:1.75;word-break:keep-all}
.policy-section p{margin:0}
.policy-section ul{margin:0;padding-left:20px}
.policy-meta{display:grid;grid-template-columns:120px 1fr;gap:8px 18px;margin-top:14px}
.policy-meta dt{color:#263140;font-size:14px;font-weight:950}
.policy-meta dd{margin:0;color:#566170;font-size:15px;font-weight:750;line-height:1.7}
.site-footer{background:#0d0d0d;color:rgba(255,255,255,.66);border-top:1px solid rgba(255,255,255,.1);padding:26px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;font-size:13px;font-weight:750}
.footer-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.footer-links a:hover{color:#fff}
[hidden]{display:none !important}
@media(max-width:900px){
  .signup-shell{grid-template-columns:1fr}
  .policy-shell{grid-template-columns:1fr}
  .signup-page{padding:70px 0 90px;background:#f6f9fc}
  .policy-page{padding:70px 0 90px;background:#f6f9fc}
  .nav{gap:18px;font-size:14px}
}
@media(max-width:768px){
  .container{padding:0 24px}
  .nav-wrap{height:68px;justify-content:center}
  .nav{display:none}
  .logo img{height:58px;max-width:180px;object-fit:contain}
  .signup-copy h1{font-size:32px}
  .signup-copy p{font-size:15px;line-height:1.75}
  .policy-copy h1{font-size:32px}
  .policy-copy p{font-size:15px;line-height:1.75}
  .signup-card,.complete-card,.admin-card{padding:24px 20px;border-radius:16px}
  .policy-card{padding:24px 20px;border-radius:16px}
  .policy-section h2{font-size:19px}
  .policy-section p,.policy-section li{font-size:15px}
  .policy-meta{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .form-actions .btn{width:100%}
  .admin-head,.admin-toolbar{display:block}
  .admin-toolbar .btn{margin-top:14px}
  .footer-inner{display:block}
  .footer-links{margin-top:10px}
}