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

body.gdhub-login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #0f172a;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: #1e293b;
}

.gdhub-login-container {
    width: 100%;
    max-width: 420px;
    padding: 16px;
}

.gdhub-login-card {
    background: #ffffff;
    border-radius: 12px;
    padding: 40px 36px;
    box-shadow: 0 25px 50px rgba(0,0,0,0.4);
}

.gdhub-login-logo {
    text-align: center;
    margin-bottom: 32px;
}

.gdhub-logo-text {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: #0f172a;
    letter-spacing: -0.5px;
}

.gdhub-logo-sub {
    display: block;
    font-size: 13px;
    color: #94a3b8;
    margin-top: 2px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.gdhub-login-card h2 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: #0f172a;
}

.gdhub-notice {
    padding: 12px 14px;
    border-radius: 8px;
    font-size: 14px;
    margin-bottom: 18px;
    line-height: 1.5;
}

.gdhub-notice--error   { background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; }
.gdhub-notice--success { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }
.gdhub-notice--info    { background: #eff6ff; color: #1d4ed8; border: 1px solid #bfdbfe; }

.gdhub-field {
    margin-bottom: 16px;
}

.gdhub-field label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: #475569;
    margin-bottom: 6px;
}

.gdhub-field input {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid #cbd5e1;
    border-radius: 8px;
    font-size: 15px;
    color: #0f172a;
    background: #f8fafc;
    transition: border-color 0.15s, box-shadow 0.15s;
    outline: none;
}

.gdhub-field input:focus {
    border-color: #3b82f6;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

.gdhub-btn {
    width: 100%;
    padding: 12px;
    background: #1a73e8;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 8px;
    transition: background 0.15s, transform 0.1s;
    letter-spacing: 0.2px;
}

.gdhub-btn:hover  { background: #1558b0; }
.gdhub-btn:active { transform: scale(0.99); }

.gdhub-login-forgot,
.gdhub-login-back {
    text-align: center;
    margin-top: 18px;
    font-size: 13px;
}

.gdhub-login-forgot a,
.gdhub-login-back a {
    color: #3b82f6;
    text-decoration: none;
}

.gdhub-login-forgot a:hover,
.gdhub-login-back a:hover { text-decoration: underline; }

.gdhub-login-hint {
    font-size: 14px;
    color: #64748b;
    margin-bottom: 18px;
    line-height: 1.5;
}