:root {
    --red:#ff1f2d;
    --red-dark:#b90011;
    --bg:#050507;
    --panel:#111217;
    --text:#ffffff;
    --muted:#aeb3bf;
    --line:rgba(255,255,255,.08);
}

body {
    margin:0;
    min-height:100vh;
    font-family:Arial, Helvetica, sans-serif;
    background:
        radial-gradient(circle at 70% 20%, rgba(255,31,45,.18), transparent 34%),
        linear-gradient(135deg, #050507, #090b10);
    color:var(--text);
}

.login-page {
    min-height:100vh;
    display:flex;
    align-items:center;
    justify-content:center;
    padding:24px;
    box-sizing:border-box;
}

.login-card {
    width:100%;
    max-width:420px;
    background:linear-gradient(145deg, var(--panel), #171922);
    border:1px solid var(--line);
    border-radius:28px;
    padding:34px;
    box-shadow:0 30px 80px rgba(0,0,0,.38);
}

.brand {
    display:flex;
    align-items:center;
    gap:10px;
    font-size:14px;
    letter-spacing:.5px;
    margin-bottom:32px;
}

.brand-icon {
    color:var(--red);
    font-size:24px;
}

.brand strong,
.brand span {
    display:block;
    line-height:1.05;
}

.login-card h1 {
    margin:0 0 10px;
    font-size:34px;
}

.login-card p {
    margin:0 0 26px;
    color:var(--muted);
    line-height:1.5;
}

.error {
    background:rgba(255,31,45,.12);
    border:1px solid rgba(255,31,45,.35);
    color:#ff6b76;
    border-radius:14px;
    padding:12px 14px;
    margin-bottom:18px;
}

label {
    display:block;
    margin-bottom:8px;
    color:var(--muted);
    font-size:14px;
}

input {
    width:100%;
    box-sizing:border-box;
    border:1px solid var(--line);
    background:#08090d;
    color:white;
    border-radius:14px;
    padding:14px 15px;
    outline:none;
    font-size:16px;
    margin-bottom:18px;
}

input:focus {
    border-color:rgba(255,31,45,.75);
}

button {
    width:100%;
    border:0;
    background:linear-gradient(135deg, var(--red), var(--red-dark));
    color:white;
    border-radius:14px;
    padding:14px 16px;
    font-weight:700;
    cursor:pointer;
}

.back-link {
    display:block;
    text-align:center;
    margin-top:22px;
    color:var(--red);
    text-decoration:none;
}