*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#0a0e17;--bg2:#111827;--bg3:#1a2236;--bg4:#243049;--fg:#e2e8f0;--fg2:#94a3b8;--fg3:#64748b;--accent:#06d6a0;--accent2:#118ab2;--red:#ef4444;--border:#1e293b;--radius:12px}
html{font-size:15px}
body{font-family:'DM Sans',sans-serif;background:var(--bg);color:var(--fg);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}

.login-card{width:100%;max-width:420px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:40px 36px;box-shadow:0 20px 60px rgba(0,0,0,0.4)}

.logo{text-align:center;margin-bottom:32px}
.logo-icon{width:56px;height:56px;border-radius:14px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:inline-flex;align-items:center;justify-content:center;font-size:1.6rem;color:#fff;margin-bottom:12px}
.logo-title{font-family:'JetBrains Mono',monospace;font-size:1.3rem;font-weight:700;letter-spacing:-0.5px}
.logo-sub{color:var(--fg3);font-size:0.82rem;margin-top:4px}

.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:0.75rem;text-transform:uppercase;letter-spacing:1px;color:var(--fg3);margin-bottom:6px;font-weight:600}
.form-group input{width:100%;background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:12px 16px;color:var(--fg);font-size:0.95rem;font-family:inherit;transition:border-color 0.2s}
.form-group input:focus{outline:none;border-color:var(--accent)}

.btn{width:100%;padding:14px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;font-weight:600;border:none;border-radius:8px;font-size:0.95rem;cursor:pointer;transition:transform 0.15s,box-shadow 0.2s;font-family:inherit;margin-top:8px}
.btn:hover{transform:translateY(-1px);box-shadow:0 4px 20px rgba(6,214,160,0.3)}
.btn:disabled{opacity:0.5;cursor:not-allowed;transform:none}

.error-msg{background:rgba(239,68,68,0.1);border:1px solid rgba(239,68,68,0.3);border-radius:8px;padding:12px 16px;margin-bottom:16px;color:var(--red);font-size:0.85rem;display:none}
.error-msg.show{display:block}

.success-msg{background:rgba(6,214,160,0.1);border:1px solid rgba(6,214,160,0.3);border-radius:8px;padding:12px 16px;margin-bottom:16px;color:var(--accent);font-size:0.85rem;display:none}
.success-msg.show{display:block}

.hint{color:var(--fg3);font-size:0.78rem;text-align:center;margin-top:12px;line-height:1.5}

.back-link{text-align:center;margin-top:24px;font-size:0.82rem}
.back-link a{color:var(--fg3);text-decoration:none}
.back-link a:hover{color:var(--accent)}