/* Background Image for Student Login */
body {
    background: url('../../images/optimized/campus.webp') no-repeat center center/cover;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.096); /* optional overlay para readable */
    backdrop-filter: blur(2px);
    z-index: -1;
}

.login-card, .register-card {
    background: rgb(255, 255, 255);
    backdrop-filter: blur(50px);
    border-radius: 2rem;
    padding: 3rem;
    max-width: 28rem;
    width: 100%;
    box-shadow: 
        0 1.25rem 2.5rem rgba(139, 0, 0, 0.25),
        0 0 0 1px rgba(255, 255, 255, 0.2);
    position: relative;
    z-index: 2;
    border: 1px solid rgba(255, 255, 255, 0.15);
    animation: slideUp 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    color: #1f2937;
}


.university-logo-img {
    display: block;
    margin: 0 auto 1rem auto; /* center at may spacing sa ilalim */
    width: 120px; /* pareho sa role-selection */
    height: auto;  /* automatic height to maintain aspect ratio */
}

.login-header, .register-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.login-icon, .register-icon {
    font-size: 4rem;
    background: linear-gradient(135deg, #8B0000 0%, #A52A2A 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.25rem;
}

.login-card h2, .register-card h2 {
    font-size: 2.125rem;
    font-weight: 800;
    background: linear-gradient(135deg, #2d1919 0%, #4a0e0e 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.625rem;
}

.subtitle {
    color: #6B7280;
    font-size: 1.125rem;
    font-weight: 500;
}

.required { color: #dc2626; }

.form-group {
    margin-bottom: 1.75rem;
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: 0.625rem;
    font-weight: 600;
    color: #374151;
    font-size: 0.9375rem;
}

.form-group input {
    width: 100%;
    padding: 1.125rem 1.5rem;
    border: 2px solid #f3f4f6;
    border-radius: 1rem;
    font-size: 1rem;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    background: #fafbfc;
    font-weight: 500;
}

.form-group input:focus {
    outline: none;
    border-color: #8B0000;
    background: #fff;
    box-shadow: 0 0 0 0.25rem rgba(139, 0, 0, 0.1);
    transform: translateY(-0.0625rem);
}

.login-btn, .register-btn {
    width: 100%;
    padding: 1.25rem;
    background: linear-gradient(135deg, #8B0000 0%, #A52A2A 100%);
    color: #fff;
    border: none;
    border-radius: 1rem;
    font-size: 1.125rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    margin-bottom: 1.5rem;
}

.login-btn:hover:not(:disabled), .register-btn:hover:not(:disabled) {
    transform: translateY(-0.1875rem);
    box-shadow: 0 1.25rem 2.5rem rgba(139, 0, 0, 0.4);
}

.login-btn:disabled, .register-btn:disabled {
    opacity: 0.8;
    cursor: not-allowed;
}

.back-link, .auth-link {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    color: #8B0000;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 0.9375rem;
}

.back-link:hover, .auth-link:hover {
    color: #A52A2A;
    transform: translateX(-0.25rem);
}

.auth-links {
    text-align: center;
    margin: 1.5rem 0;
}

.auth-link strong {
    color: #8B0000;
    font-weight: 700;
}

.password-wrapper {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: #9ca3af;
    cursor: pointer;
    font-size: 1rem;
    transition: color 0.3s ease;
}

.toggle-password:hover { color: #8B0000; }

.name-group, .password-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-bottom: 1.75rem;
}

.alert {
    padding: 1rem 1.25rem;
    border-radius: 1rem;
    margin-bottom: 1.75rem;
    font-weight: 600;
    border-left: 0.25rem solid;
}

.alert-danger {
    background: #fef2f2;
    color: #dc2626;
    border-color: #ef4444;
}

.alert-success {
    background: #f0fdf4;
    color: #166534;
    border-color: #22c55e;
}

.loading {
    display: inline-block;
    width: 1.375rem;
    height: 1.375rem;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes slideUp {
    from { opacity: 0; transform: translateY(2.5rem); }
    to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 480px) {
    .login-card, .register-card { padding: 2.25rem 1.5rem; margin: 0.625rem; }
    .name-group, .password-group { grid-template-columns: 1fr; gap: 1.25rem; }
}