* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg: #060b13;
    --text: #e8eef8;
    --muted: #8fa8c4;
    --blue: #3ea6ff;
    --blue-2: #1b6fd1;
    --border: rgba(95,128,175,0.24);
}

html, body {
    min-height: 100%;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--text);
}

.auth-bg {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background:
        radial-gradient(circle at 20% 20%, rgba(62,166,255,0.09), transparent 35%),
        radial-gradient(circle at 80% 80%, rgba(255,77,87,0.07), transparent 30%),
        linear-gradient(180deg, #08101c 0%, #04080f 100%);
}

.auth-card {
    background: linear-gradient(180deg, rgba(16,24,40,0.98), rgba(9,15,25,0.98));
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 40px;
    width: 100%;
    max-width: 440px;
    box-shadow: 0 30px 80px rgba(0,0,0,0.65);
}

.auth-logo {
    text-align: center;
    margin-bottom: 28px;
}
.auth-logo-text {
    font-size: 13px;
    font-weight: 900;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--blue);
    line-height: 1.2;
}
.auth-logo-sub {
    font-size: 32px;
    font-weight: 900;
    letter-spacing: 6px;
    color: var(--text);
    line-height: 1;
    margin-top: 4px;
}

.auth-title {
    font-size: 20px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 4px;
}
.auth-sub {
    font-size: 13px;
    color: var(--muted);
    text-align: center;
    margin-bottom: 24px;
}

.auth-alert {
    background: rgba(255,77,87,0.12);
    border: 1px solid rgba(255,77,87,0.28);
    border-radius: 12px;
    padding: 12px 16px;
    font-size: 13px;
    color: #ff9099;
    margin-bottom: 18px;
    text-align: center;
}

.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .9px;
    color: var(--muted);
    margin-bottom: 6px;
}
.form-control {
    width: 100%;
    background: rgba(8,14,24,0.9);
    border: 1px solid rgba(95,128,175,0.25);
    border-radius: 12px;
    color: var(--text);
    padding: 11px 15px;
    font-size: 14px;
    transition: border-color .2s;
    font-family: inherit;
}
.form-control:focus {
    outline: none;
    border-color: rgba(62,166,255,0.55);
    box-shadow: 0 0 0 3px rgba(62,166,255,0.08);
}
.form-control::placeholder { color: rgba(143,168,196,0.35); }

.form-check {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    font-size: 13px;
    color: var(--muted);
    cursor: pointer;
}
.form-check input[type=checkbox] {
    width: 16px;
    height: 16px;
    accent-color: var(--blue);
    cursor: pointer;
}

.btn-auth {
    width: 100%;
    padding: 13px;
    border-radius: 14px;
    border: none;
    background: linear-gradient(180deg, #3ea6ff, #1b6fd1);
    color: #fff;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
    transition: transform .15s, opacity .15s;
    margin-bottom: 8px;
}
.btn-auth:hover { transform: translateY(-1px); opacity: .94; }
.btn-auth:active { transform: translateY(0); opacity: 1; }
.btn-auth:disabled {
    background: rgba(62,166,255,0.3);
    cursor: not-allowed;
    transform: none;
    opacity: 1;
}

.auth-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 13px;
    color: var(--muted);
}
.auth-footer a { color: var(--blue); text-decoration: none; font-weight: 600; }
.auth-footer a:hover { text-decoration: underline; }

@media (max-width: 500px) {
    .auth-card { padding: 28px 20px; border-radius: 18px; }
}