:root{
    --primary:#2563eb;
    --primary-dark:#1e40af;
    --gradient:linear-gradient(135deg,#1e3a8a,#2563eb);
    --bg:#0f172a;
    --card-bg:rgba(255,255,255,0.96);
    --border:rgba(37,99,235,0.25);
    --text:#0f172a;
    --muted:#64748b;
    --radius:16px;
}

/* RESET */
*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family:'Poppins',sans-serif;
}

/* BODY */
body{
    min-height:100vh;
    background:var(--gradient);
    display:flex;
    flex-direction:column;
}

/* NAVBAR */
.navbar{
    background:rgba(255,255,255,.12);
    backdrop-filter:blur(10px);
}
.nav-container{
    max-width:1200px;
    margin:auto;
    padding:14px 20px;
    display:flex;
    justify-content:space-between;
    align-items:center;
}
.logo{
    display:flex;
    align-items:center;
    gap:10px;
    color:#fff;
    font-weight:600;
    text-decoration:none;
}
.logo img{height:36px}

.nav-links{
    list-style:none;
    display:flex;
    gap:22px;
}
.nav-links a{
    color:#e5e7eb;
    text-decoration:none;
    font-size:14px;
}
.nav-links a:hover,
.nav-links a.active{
    color:#fff;
}

/* LOGIN CONTAINER */
.login-container{
    flex:1;
    display:flex;
    align-items:center;
    justify-content:center;
    padding:30px 15px;
}

/* LOGIN CARD */
.login-card{
    width:100%;
    max-width:430px;
    background:var(--card-bg);
    border-radius:var(--radius);
    padding:32px 30px;
    border:1px solid var(--border);
    box-shadow:
        0 25px 60px rgba(0,0,0,.25),
        inset 0 0 0 1px rgba(255,255,255,.6);
}

/* HEADER */
.login-header{
    text-align:center;
    margin-bottom:26px;
}
.login-header h1{
    font-size:26px;
    color:var(--text);
    font-weight:600;
}
.login-header p{
    font-size:14px;
    color:var(--muted);
}

/* FORM */
.form-group{margin-bottom:18px}
.form-label{
    font-size:13px;
    font-weight:500;
    color:var(--text);
    margin-bottom:6px;
    display:block;
}
.form-control{
    width:100%;
    padding:13px 15px;
    border-radius:12px;
    border:1px solid #e5e7eb;
    font-size:14px;
    background:#fff;
}
.form-control:focus{
    outline:none;
    border-color:var(--primary);
    box-shadow:0 0 0 3px rgba(37,99,235,.15);
}

/* PASSWORD */
.password-input{position:relative}
.toggle-password{
    position:absolute;
    right:14px;
    top:50%;
    transform:translateY(-50%);
    background:none;
    border:none;
    font-size:18px;
    color:var(--muted);
    cursor:pointer;
}

/* OPTIONS */
.form-options{
    display:flex;
    justify-content:space-between;
    align-items:center;
    font-size:13px;
    margin-bottom:22px;
}
.forgot-password{
    color:var(--primary);
    text-decoration:none;
}
.forgot-password:hover{text-decoration:underline}

/* BUTTON */
.login-btn{
    width:100%;
    padding:13px;
    border-radius:14px;
    border:none;
    background:var(--gradient);
    color:#fff;
    font-size:15px;
    font-weight:600;
    cursor:pointer;
    transition:.3s;
}
.login-btn:hover{
    transform:translateY(-1px);
    box-shadow:0 12px 30px rgba(0,0,0,.3);
}

/* REGISTER */
.register-link{
    text-align:center;
    margin-top:18px;
    font-size:13px;
}
.register-link a{
    color:var(--primary);
    font-weight:500;
}

/* FOOTER */
.footer{
    text-align:center;
    padding:14px;
    font-size:13px;
    color:#e5e7eb;
    background:rgba(255,255,255,.08);
}

/* MOBILE */
.mobile-toggle{display:none}
@media(max-width:768px){
    .nav-links{
        display:none;
        position:absolute;
        top:60px;
        left:0;
        right:0;
        background:rgba(15,23,42,.95);
        flex-direction:column;
        padding:15px;
    }
    .nav-links.active{display:flex}
    .mobile-toggle{
        display:block;
        background:none;
        border:none;
        font-size:24px;
        color:#fff;
    }
}