:root{--forest:#174b3b;--gold:#c89b4b;--ink:#172620}*{box-sizing:border-box}body{margin:0;min-height:100vh;display:grid;place-items:center;padding:24px;font-family:"Be Vietnam Pro",sans-serif;color:var(--ink);background:linear-gradient(135deg,#f7f1e5cc,#e7efe6dd),url('/images/hero/dien-bien-phu-history.webp') center/cover}.login-card{width:min(440px,100%);background:#fffdf9;padding:38px 42px;box-shadow:0 30px 90px #0d2d2255;border-top:5px solid var(--gold)}.login-brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none}.login-brand b{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;background:var(--forest);color:#edca78;font:24px Georgia}.login-brand span,.login-brand small{display:block}.login-brand small{font-size:9px;letter-spacing:.15em;color:#78827c;margin-top:3px}.login-heading{margin:42px 0 24px}.login-heading>span{color:var(--gold);font-size:10px;letter-spacing:.18em;text-transform:uppercase;font-weight:700}.login-heading h1{font:700 42px "Playfair Display",serif;margin:8px 0}.login-heading p{font-size:13px;color:#758079}.login-card label{display:block;font-size:11px;font-weight:600;margin:16px 0}.login-card input{display:block;width:100%;padding:13px 14px;margin-top:7px;border:1px solid #d7d9d4;outline:0}.login-card input:focus{border-color:var(--forest);box-shadow:0 0 0 3px #174b3b12}.login-card form button{width:100%;border:0;background:var(--forest);color:white;padding:14px;margin-top:8px;font-weight:700}.login-error{padding:10px;background:#fff0ed;color:#a3342b;font-size:12px}.back-home{display:block;margin-top:24px;text-align:center;color:#627169;font-size:11px;text-decoration:none}@media(max-width:520px){.login-card{padding:30px 24px}.login-heading h1{font-size:36px}}