/* Login Page Variables */
:root {
    --login-bg: #0d1117;
    --card-bg: #161b22;
    --input-bg: #090c10;
    --border-color: #30363d;
    --primary-gold: #d4a843; 
    --gold-dim: #a07830;
    --gold-light: #f0c060; 
    --primary-blue: #58a6ff;
    --text-main: #c9d1d9;
    --text-muted: #8b949e;
    --danger-red: #f85149;
}

/* Reset & Base Layout */
body.login-page {
    background-color: var(--login-bg);
    background-image: 
        radial-gradient(at 0% 0%, rgba(212, 175, 55, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(88, 166, 255, 0.05) 0px, transparent 50%);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 90vh;
    margin: 0;
    font-family: 'Inter', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--text-main);
}

/* Central Login Card */
.login-card {
    background: var(--card-bg);
    padding: 3rem 2.5rem;
    border-radius: 1.25rem;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: transform 0.3s ease;
}

.login-card:hover {
    border-color: rgba(212, 175, 55, 0.3);
}

/* Branding */
.brand-logo {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    display: block;
    filter: drop-shadow(0 0 15px rgba(212, 175, 55, 0.2));
}

.login-card h2 {
    color: var(--primary-gold);
    font-size: 1.5rem;
    margin: 0 0 0.5rem 0;
    letter-spacing: -0.5px;
}

/* Alerts */
.alert {
    background: rgba(248, 81, 73, 0.1);
    color: var(--danger-red);
    padding: 0.85rem;
    border-radius: 0.6rem;
    margin-bottom: 2rem;
    font-size: 0.85rem;
    border: 1px solid rgba(248, 81, 73, 0.2);
    animation: shake 0.4s ease-in-out;
}

/* Form Styling */
.form-group {
    text-align: left;
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 0.6rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input {
    width: 100%;
    padding: 0.9rem 1rem;
    background: var(--input-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    color: #fff;
    font-size: 1rem;
    transition: all 0.2s ease;
    box-sizing: border-box;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-blue);
    background: #12161b;
    box-shadow: 0 0 0 4px rgba(88, 166, 255, 0.15);
}

/* Submit Button */
.btn-primary {
    width: 100%;
    padding: 1rem;
    background: var(--primary-gold);
    color: #ffffff;
    border: none;
    border-radius: 0.75rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 0.5rem;
}

.btn-primary:hover {
    background: var(--gold-light);
    transform: translateY(-1px);
    box-shadow: 0 5px 15px rgba(212, 168, 67, 0.3);
}

.btn-primary:active {
    transform: translateY(0);
}

/* Footer */
.footer-text {
    margin-top: 2.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

/* Animations */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Mobile Responsiveness */
@media (max-width: 480px) {
    .login-card {
        padding: 2rem 1.5rem;
        width: 85%;
        border: none;
        background: transparent;
        box-shadow: none;
    }
}