:root{--navy:#071a31;--navy2:#0c2d50;--blue:#2f72e8;--cyan:#44d1dd;--ink:#17263c;--muted:#6b788a;--line:#dce5ef;--bg:#f4f7fb;--danger:#c93737;--ok:#18784f;--warn:#a06408;--shadow:0 24px 70px rgba(3,18,39,.25)}
*{box-sizing:border-box}html,body{min-height:100%}body{margin:0;font-family:Pretendard,"Noto Sans KR","Malgun Gothic",system-ui,sans-serif;color:var(--ink);background:var(--bg)}
.auth-page{min-height:100vh;color:#fff;background:radial-gradient(circle at 82% 12%,rgba(68,209,221,.14),transparent 28rem),radial-gradient(circle at 8% 90%,rgba(47,114,232,.22),transparent 30rem),linear-gradient(135deg,#061426,var(--navy) 56%,var(--navy2))}
.auth-page:before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.15;background-image:linear-gradient(rgba(255,255,255,.13) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.13) 1px,transparent 1px);background-size:56px 56px;mask-image:linear-gradient(#000,transparent 88%)}
.shell{position:relative;z-index:1;min-height:100vh;width:min(1240px,100%);margin:auto;padding:0 38px;display:grid;grid-template-rows:auto 1fr auto}.topbar{min-height:78px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(255,255,255,.13)}
.brand{display:flex;align-items:center;gap:12px;color:#fff;text-decoration:none}.brand-mark{width:38px;height:38px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.35);border-radius:12px;background:rgba(255,255,255,.09);font-weight:900}.brand-title{font-size:15px;font-weight:900}.brand-sub{margin-top:2px;font-size:9px;color:rgba(255,255,255,.55);letter-spacing:.15em}.secure{display:flex;gap:8px;align-items:center;font-size:11px;color:rgba(255,255,255,.62)}.secure i{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.auth-main{display:grid;grid-template-columns:minmax(0,1fr) minmax(380px,470px);align-items:center;gap:clamp(48px,8vw,110px);padding:58px 0}.intro{max-width:620px}.eyebrow{display:inline-flex;padding:7px 12px;border:1px solid rgba(105,165,255,.3);border-radius:99px;color:#bcd6ff;background:rgba(38,102,195,.12);font-size:10px;font-weight:900;letter-spacing:.1em}.intro h1{margin:22px 0 0;font-size:clamp(38px,5vw,64px);line-height:1.08;letter-spacing:-.055em}.intro h1 span{display:block;margin-top:9px;color:#8eb9ff}.intro p{max-width:530px;margin:23px 0 0;color:rgba(236,244,255,.67);font-size:14px;line-height:1.8;word-break:keep-all}.feature-row{display:flex;flex-wrap:wrap;gap:18px;margin-top:33px;color:rgba(255,255,255,.68);font-size:11px}.feature-row span{display:flex;align-items:center;gap:7px}.feature-row b{width:24px;height:24px;display:grid;place-items:center;border-radius:8px;background:rgba(255,255,255,.09);color:#8eb9ff}
.card{color:var(--ink);background:rgba(255,255,255,.98);border:1px solid rgba(255,255,255,.8);border-radius:23px;box-shadow:var(--shadow);padding:34px 36px}.card.wide{width:min(720px,100%)}.kicker{margin:0 0 6px;color:var(--blue);font-size:10px;font-weight:900;letter-spacing:.12em}.card h2{margin:0;font-size:24px;letter-spacing:-.04em}.desc{margin:8px 0 25px;color:var(--muted);font-size:12px;line-height:1.6}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}.field{margin-bottom:15px}.field.full{grid-column:1/-1}.field-head{display:flex;align-items:center;justify-content:space-between}.field label,.label{display:block;margin-bottom:7px;font-size:11px;font-weight:900;color:#34445a}.input-row{display:flex;gap:8px}.input-row input{flex:1;min-width:0}
input,select{width:100%;height:48px;border:1px solid var(--line);border-radius:12px;padding:0 14px;outline:0;color:#14243a;background:#f9fbfd;font:inherit;font-size:13px;transition:.18s}input:focus,select:focus{border-color:#5591f3;box-shadow:0 0 0 4px rgba(47,114,232,.1);background:#fff}input::placeholder{color:#9aa7b8}.has-button{position:relative}.has-button input{padding-right:46px}.icon-btn{position:absolute;right:6px;top:50%;transform:translateY(-50%);width:36px;height:36px;display:grid;place-items:center;border:0;border-radius:9px;background:transparent;color:#6d7b8e;cursor:pointer;padding:0;line-height:0}.icon-btn:hover{background:#edf3f9}.icon-btn svg{display:block}
.btn{height:48px;border:0;border-radius:12px;padding:0 18px;font:inherit;font-size:12px;font-weight:900;cursor:pointer;transition:.15s}.btn:disabled{opacity:.6;cursor:wait}.btn-primary{width:100%;color:#fff;background:linear-gradient(135deg,#2f72e8,#1e5bc1);box-shadow:0 9px 20px rgba(47,114,232,.24)}.btn-primary:hover{transform:translateY(-1px)}.btn-secondary{white-space:nowrap;color:#285fab;background:#eaf2ff;border:1px solid #cfe0fb}.btn-danger{color:#a72e2e;background:#fff0f0;border:1px solid #f1caca}.btn-small{height:34px;padding:0 11px;border-radius:9px}
.tools{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:2px 0 20px}.remember{display:flex;align-items:center;gap:7px;color:#68778b;font-size:11px}.remember input{width:15px;height:15px;accent-color:var(--blue)}.links{display:flex;justify-content:center;flex-wrap:wrap;gap:0;margin-top:17px}.links a{padding:0 11px;color:#58708f;font-size:11px;text-decoration:none;border-right:1px solid #dbe3ed}.links a:last-child{border:0}.links a:hover{color:var(--blue)}
.message{min-height:18px;margin:11px 0 0;text-align:center;font-size:11px;line-height:1.5}.message.error{color:var(--danger)}.message.success{color:var(--ok)}.message.warn{color:var(--warn)}.security-note{margin-top:20px;padding-top:17px;border-top:1px solid #e4ebf2;color:#788698;font-size:10px;line-height:1.55}.checklist{display:grid;grid-template-columns:1fr 1fr;gap:6px 10px;margin:-4px 0 16px;padding:12px;border-radius:11px;background:#f3f7fb;color:#8995a5;font-size:10px}.checklist span:before{content:"○";margin-right:5px}.checklist span.ok{color:var(--ok)}.checklist span.ok:before{content:"✓"}.agree{display:flex;align-items:flex-start;gap:8px;margin:2px 0 18px;color:#68778b;font-size:11px;line-height:1.5}.agree input{flex:0 0 auto;width:15px;height:15px;margin-top:1px;accent-color:var(--blue)}
.footer{min-height:62px;display:flex;align-items:center;justify-content:space-between;border-top:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.43);font-size:9px}.page-main{min-height:calc(100vh - 140px);display:grid;place-items:center;padding:42px 0}.back{color:#d6e6ff;font-size:11px;text-decoration:none}.result-box{display:none;margin-top:17px;padding:17px;border:1px solid #cfe0f7;border-radius:12px;background:#f2f7ff;text-align:center}.result-box.show{display:block}.result-id{font-size:20px;font-weight:900;color:#245fb5;letter-spacing:.08em}
@media(max-width:900px){.shell{padding:0 22px}.auth-main{grid-template-columns:1fr;gap:38px;padding:42px 0}.intro{text-align:center;margin:auto}.intro p{margin-left:auto;margin-right:auto}.feature-row{justify-content:center}.card{width:min(470px,100%);margin:auto}.page-main{padding:34px 0}}
@media(max-width:540px){.shell{padding:0 15px}.topbar{min-height:68px}.brand-sub,.secure,.intro p,.feature-row{display:none}.auth-main{padding:34px 0}.intro h1{font-size:34px;margin-top:16px}.card{padding:27px 20px;border-radius:19px}.grid2{grid-template-columns:1fr}.field.full{grid-column:auto}.checklist{grid-template-columns:1fr}.footer{justify-content:center;text-align:center}.footer span:last-child{display:none}}

/* Login page only — architectural elevation-drawing background (scoped to .login-blueprint so find-id.html / register.html are unaffected) */
.login-blueprint{background:linear-gradient(100deg,rgba(239,230,211,.95) 0%,rgba(239,230,211,.88) 28%,rgba(239,230,211,.42) 50%,rgba(239,230,211,.08) 64%,rgba(239,230,211,0) 76%),linear-gradient(180deg,rgba(239,230,211,0) 0%,rgba(239,230,211,0) 70%,rgba(239,230,211,.88) 87%,rgba(239,230,211,.98) 100%),url("./auth-blueprint-bg.jpg");background-size:cover,cover,cover;background-position:center,center,center;background-repeat:no-repeat,no-repeat,no-repeat;color:#18283e}
.login-blueprint:before{display:none}
.login-blueprint .topbar{border-bottom:1px solid rgba(24,40,62,.15);background:rgba(239,230,211,.6);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.login-blueprint .brand{color:#16263c}
.login-blueprint .brand-mark{border-color:rgba(22,38,60,.35);background:rgba(255,255,255,.72);color:#16263c}
.login-blueprint .brand-sub{color:#4c5c72}
.login-blueprint .secure{color:#4c5c72}
.login-blueprint .secure i{background:var(--blue);box-shadow:0 0 12px rgba(47,114,232,.55)}
.login-blueprint .eyebrow{color:#16263c;background:rgba(255,255,255,.68);border-color:rgba(22,38,60,.22)}
.login-blueprint .intro h1{color:#111d2e;font-family:"Noto Sans KR","Noto Sans CJK KR",Pretendard,"Malgun Gothic",system-ui,sans-serif;font-weight:900;letter-spacing:-.03em;text-shadow:0 2px 18px rgba(255,255,255,.55)}
.login-blueprint .intro h1 span{color:#1e5bc1;font-weight:900;font-family:inherit}
.login-blueprint .brand-title{font-weight:900}
.login-blueprint .eyebrow{font-weight:800}
.login-blueprint .intro p{color:#37475d}
.login-blueprint .feature-row{color:#233247}
.login-blueprint .feature-row b{background:rgba(255,255,255,.7);color:#1e5bc1;border:1px solid rgba(22,38,60,.16)}
.login-blueprint .footer{color:#5a6a80;border-top:1px solid rgba(24,40,62,.14)}
.login-blueprint .auth-card{background:rgba(8,19,35,.92);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border:1px solid rgba(255,255,255,.14);box-shadow:0 30px 70px rgba(4,12,26,.45);color:#fff}
.login-blueprint .auth-card .kicker{color:#7fc4ff}
.login-blueprint .auth-card h2{color:#fff}
.login-blueprint .auth-card .desc{color:#b7c5da}
.login-blueprint .auth-card label{color:#c6d3e5}
.login-blueprint .auth-card input{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.16);color:#fff}
.login-blueprint .auth-card input::placeholder{color:#7c8aa0}
.login-blueprint .auth-card input:focus{border-color:#4b9bff;box-shadow:0 0 0 4px rgba(75,155,255,.18);background:rgba(255,255,255,.11)}
.login-blueprint .auth-card .icon-btn{color:#c6d3e5}
.login-blueprint .auth-card .icon-btn:hover{background:rgba(255,255,255,.08)}
.login-blueprint .auth-card .remember{color:#b7c5da}
.login-blueprint .auth-card .links a{color:#9db3d1;border-right-color:rgba(255,255,255,.14)}
.login-blueprint .auth-card .links a:hover{color:#7fc4ff}
.login-blueprint .auth-card .security-note{color:#8b9ab1;border-top-color:rgba(255,255,255,.12)}
@media(max-width:900px){
.login-blueprint{background:#efe6d3;background-attachment:scroll}
.login-blueprint:before{content:"";display:block;position:fixed;inset:-3%;z-index:0;background-color:#efe6d3;background-image:linear-gradient(180deg,rgba(239,230,211,.32) 0%,rgba(239,230,211,.06) 24%,rgba(239,230,211,.04) 55%,rgba(239,230,211,.28) 82%,rgba(239,230,211,.55) 100%),url("./auth-blueprint-bg.jpg");background-size:cover,260%;background-position:center,center 40%;background-repeat:no-repeat,no-repeat;filter:blur(7px) saturate(1.05)}
.login-blueprint .shell{position:relative;z-index:1}
.login-blueprint .auth-card{padding:24px 22px;border-radius:20px;box-shadow:0 22px 54px rgba(4,12,26,.4)}
.login-blueprint .auth-card .kicker{font-size:9px;margin-bottom:4px}
.login-blueprint .auth-card h2{font-size:20px}
.login-blueprint .auth-card .desc{margin:6px 0 18px;font-size:11px}
.login-blueprint .auth-card .field{margin-bottom:11px}
.login-blueprint .auth-card label{font-size:10px;margin-bottom:5px}
.login-blueprint .auth-card input{height:42px;font-size:12px;border-radius:10px}
.login-blueprint .auth-card .tools{margin:0 0 15px}
.login-blueprint .auth-card .btn{height:44px;border-radius:10px}
.login-blueprint .auth-card .links{margin-top:13px}
.login-blueprint .auth-card .security-note{margin-top:15px;padding-top:13px;font-size:9px}
}


/* Login readability: keep the recovery and registration layouts unchanged. */
.login-blueprint .auth-card .desc{font-size:14px;color:#d0dbea;line-height:1.7}
.login-blueprint .auth-card label,.login-blueprint .auth-card .remember{font-size:13px;color:#d0dbea}
.login-blueprint .auth-card input:not([type=checkbox]){font-size:16px}
.login-blueprint .auth-card input::placeholder{color:#b8c6d8}
.login-blueprint .auth-card .links{gap:6px 0}
.login-blueprint .auth-card .links a{font-size:14px;color:#d5e7ff;padding:10px 9px;line-height:1.5}
.login-blueprint .auth-card .links a:hover{text-decoration:underline}
.login-blueprint .auth-card .links a:focus-visible{outline:2px solid #7fc4ff;outline-offset:2px;border-radius:4px}
.login-blueprint .auth-card .security-note{font-size:13px;color:#c5d2e3;line-height:1.75}
.login-blueprint .auth-card .message{font-size:13px}
.login-blueprint .auth-card .message.error{color:#ffb4b4}
.login-blueprint .auth-card .message.success{color:#9ce5ba}
.login-blueprint .auth-card .message.warn{color:#ffd28a}
.login-blueprint .feature-row{font-size:13px}
.login-blueprint .secure{font-size:12px}
.login-blueprint .footer{font-size:12px;color:#34445a;line-height:1.7;gap:12px;flex-wrap:wrap;padding:12px 0}
.login-blueprint .auth-card .tools{flex-wrap:wrap;row-gap:12px}
.login-blueprint .auth-card .remember input{flex:0 0 16px;width:16px;height:16px}