:root{ --accent:#ff6b2d; }
*{box-sizing:border-box;font-family:Inter,Segoe UI,Helvetica,Arial,sans-serif}
body,html{height:100%;margin:0;background:#0f66a8;overflow:auto}
.bg-overlay{position:fixed;inset:0;background-image:url('assets/images/background.jpg');background-size:cover;filter:blur(2px) brightness(0.7);z-index:0}
.container{position:relative;z-index:2;height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.login-card{width:90%;max-width:1100px;background:linear-gradient(180deg,rgba(255,255,255,0.03),rgba(255,255,255,0.02));backdrop-filter: blur(6px);border-radius:18px;display:flex;overflow:hidden;box-shadow:0 10px 30px rgba(2,6,23,0.4);color:#fff}
.login-card .left{flex:0 0 42%;padding:48px}
.login-card .right{flex:1;position:relative;min-height:420px}
input{width:100%;padding:12px;border-radius:6px;border:none;margin:8px 0;background:rgba(255,255,255,0.06);color:#fff}
.btn{padding:12px;border-radius:6px;background:var(--accent);border:none;color:#fff;font-weight:600;width:100%}
.site-header{display:flex;justify-content:space-between;align-items:center;padding:12px 20px;background:#fff;color:#222}
.site-footer{padding:14px 20px;text-align:center;background:#f6f8fb;color:#333;margin-top:20px}
.student-photo{position:absolute;inset:0;background-image:url('assets/images/students.jpg');background-position:center;background-size:cover;filter:contrast(1) saturate(1);border-radius:0 18px 18px 0}
.main-content{padding:20px}