*{box-sizing:border-box;margin:0;padding:0}:root{--color-primary:#059669;--color-primary-hover:#047857;--color-bg:#fafafa;--color-card:#fff;--color-border:#e5e7eb;--color-text:#1a1a1a;--color-text-secondary:#666}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;min-height:100vh;background:var(--color-bg);color:var(--color-text)}.auth-container{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:1rem}.auth-card{background:var(--color-card);border:1px solid #d1d5db;border-radius:16px;padding:2.5rem;width:100%;max-width:420px;box-shadow:0 4px 24px rgba(0,0,0,.1)}.auth-logo{display:flex;justify-content:center;margin-bottom:1rem}.auth-logo img{height:45px;width:auto}.auth-tagline{text-align:center;font-size:.875rem;color:var(--color-primary);margin-bottom:2rem;letter-spacing:.05em;text-transform:uppercase;font-weight:500}.auth-title{font-size:1.75rem;font-weight:700;text-align:center;margin-bottom:.5rem;color:var(--color-text)}.auth-subtitle{text-align:center;color:var(--color-text-secondary);margin-bottom:2rem}.auth-form{gap:1rem}.auth-form,.form-group{display:flex;flex-direction:column}.form-group{gap:.5rem}.form-label{font-size:.875rem;font-weight:500;color:var(--color-text)}.form-input{padding:.75rem 1rem;border:1px solid var(--color-border);border-radius:8px;font-size:1rem;background:var(--color-card);color:var(--color-text);transition:border-color .2s,box-shadow .2s}.form-input::placeholder{color:#999}.form-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(34,197,94,.1)}.btn{padding:.75rem 1.5rem;border:none;border-radius:8px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .1s,opacity .2s}.btn:active{transform:scale(.98)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-primary-hover)}.btn-github,.btn-google{background:#fff}.btn-github,.btn-google,.btn-outline{color:var(--color-text);border:1px solid var(--color-border)}.btn-outline{background:transparent}.social-buttons{display:flex;flex-direction:column;gap:.75rem;margin-top:1.5rem}.social-buttons:before{content:"";display:block;height:1px;background:var(--color-border);margin-bottom:1.5rem}.social-btn{display:flex;align-items:center;justify-content:center;gap:.75rem;padding:.75rem 1.5rem;border-radius:8px;font-size:1rem;font-weight:500;cursor:pointer;transition:background-color .2s}.social-btn svg{width:20px;height:20px}.otp-input{font-size:1.5rem;letter-spacing:.5em;text-align:center;font-family:SF Mono,Fira Code,Courier New,monospace}.otp-actions{display:flex;justify-content:space-between;align-items:center;margin-top:.5rem}.text-btn{background:none;border:none;color:var(--color-primary);cursor:pointer;font-size:.875rem;font-weight:500;padding:0}.text-btn:hover:not(:disabled){text-decoration:underline}.text-btn:disabled{cursor:not-allowed}.auth-footer,.text-btn:disabled{color:var(--color-text-secondary)}.auth-footer{text-align:center;margin-top:1.5rem}.auth-link{color:var(--color-primary);text-decoration:none;font-weight:500}.auth-link:hover{text-decoration:underline}.error-message{background:#fef2f2;color:#dc2626;border-radius:8px;border:1px solid #fecaca}.error-message,.success-message{padding:.75rem 1rem;font-size:.875rem;margin-bottom:1rem}.success-message{background:#f0fdf4;color:var(--color-primary);border-radius:8px;border:1px solid #bbf7d0}.bridge-container{display:flex;justify-content:center;align-items:center;min-height:100vh;padding:1rem}.bridge-card{background:var(--color-card);border:1px solid var(--color-border);border-radius:16px;padding:2.5rem;width:100%;max-width:420px;box-shadow:0 4px 24px rgba(0,0,0,.1);text-align:center}.bridge-icon{color:var(--color-primary);margin-bottom:1.5rem}.bridge-title{font-size:1.5rem;font-weight:700;margin-bottom:.5rem;color:var(--color-text)}.bridge-subtitle{color:var(--color-text-secondary);margin-bottom:1.5rem;font-size:.875rem}.bridge-btn{width:100%;margin-bottom:1rem}.bridge-hint{font-size:.8rem;color:var(--color-text-secondary);margin-bottom:1.5rem}.bridge-footer{padding-top:1rem;border-top:1px solid var(--color-border)}