/* ===== Login Page ===== */
.login-page{width:100%;height:100dvh;display:flex;justify-content:center;align-items:center;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);position:relative;overflow:hidden}
.login-card{background:#fff;padding:40px;border-radius:16px;box-shadow:0 10px 40px rgba(0,0,0,.2);width:90%;max-width:400px;position:relative;z-index:1}
.login-card h1{text-align:center;margin-bottom:30px;color:#333}
.login-card input{width:100%;padding:14px;margin-bottom:16px;border:1px solid #ddd;border-radius:8px;font-size:16px}
.login-card button{width:100%;padding:14px;background:#667eea;color:#fff;border:none;border-radius:8px;font-size:16px;cursor:pointer;margin-bottom:10px}
.login-card button:hover{background:#5a6fd6}
.error{color:#dc2626;text-align:center;margin-top:10px;font-size:14px}
.reg-toggle{text-align:center;margin-top:12px;font-size:14px}
.reg-toggle a{color:#667eea;text-decoration:none}