:root{--bg:#070a09;--surface:#0e1612;--line:rgba(190,255,223,.12);--text:#f4faf6;--muted:#92a39a;--green:#39e5a0;--green2:#78f4c4;--red:#ff756d}
*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(circle at 15% 0%,rgba(57,229,160,.12),transparent 32%),var(--bg);color:var(--text);font-family:Inter,"Noto Sans Thai",sans-serif}.container{width:min(1080px,calc(100% - 36px));margin:auto}.topbar{border-bottom:1px solid var(--line);background:rgba(7,10,9,.88);backdrop-filter:blur(16px)}.nav{height:76px;display:flex;align-items:center}.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:800;letter-spacing:.12em}.mark{width:38px;height:38px;display:grid;place-items:center;border-radius:12px;background:linear-gradient(135deg,var(--green),#53d8ff);color:#03100a}.back{margin-left:auto;color:var(--muted);text-decoration:none}.page{min-height:calc(100vh - 77px);display:grid;place-items:center;padding:50px 0}.auth-layout{width:100%;display:grid;grid-template-columns:1fr 460px;gap:50px;align-items:center}.intro .eyebrow{color:var(--green2);font-size:11px;font-weight:800;letter-spacing:.17em}.intro h1{font-size:clamp(44px,7vw,76px);line-height:1.02;letter-spacing:-.055em;margin:12px 0}.intro p{max-width:600px;color:var(--muted);font-size:18px}.card{padding:30px;border:1px solid var(--line);border-radius:22px;background:linear-gradient(180deg,#111d17,var(--surface));box-shadow:0 30px 90px rgba(0,0,0,.35)}.card h2{font-size:29px;margin:0 0 7px}.card>p{color:var(--muted);margin-top:0}.field{display:grid;gap:7px;margin-top:17px}.field label{font-size:12px;color:var(--muted)}.field input{width:100%;padding:14px 15px;border:1px solid var(--line);border-radius:12px;background:#080d0a;color:var(--text);font:inherit;outline:none}.field input:focus{border-color:rgba(57,229,160,.5)}button{width:100%;border:0;border-radius:12px;padding:14px 18px;margin-top:22px;background:linear-gradient(180deg,var(--green2),var(--green));color:#03100a;font:inherit;font-weight:800;cursor:pointer}button:disabled{opacity:.55;cursor:wait}.message{min-height:24px;margin:13px 0 0;color:var(--red);font-size:12px}.note{margin-top:18px;padding-top:17px;border-top:1px solid var(--line);color:var(--muted);font-size:12px}.note a{color:var(--green2)}@media(max-width:800px){.auth-layout{grid-template-columns:1fr}.intro{text-align:center}.intro p{margin-inline:auto}.card{width:min(480px,100%);margin:auto}}