:root {
    --primary: #171c8f;
    --primary-light: rgba(23, 28, 143, 0.9);
    --secondary: #b61f31;
    --light: #ffffff;
    --dark: #333333;
    --gray: #f5f5f5;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--gray);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Banner Styles */
.banner {
    background: linear-gradient(rgba(0, 0, 0, 0.6), rgba(0, 0, 0, 0.6)), 
                url('https://oed.com.ph/wp-content/uploads/2022/06/academy-accomplishment-celebrate-267885-1.png') center/cover no-repeat;
    color: var(--light);
    padding: 60px 20px;
    text-align: center;
    position: relative;
    margin-bottom: 40px;
}

.banner-content {
    max-width: 1200px;
    margin: 0 auto;
}

.banner-title {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--light);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    letter-spacing: 1px;
}

.banner-subtitle {
    font-size: 1.2rem;
    font-weight: 300;
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.9;
}

/* Main Container */
.main-container {
    flex: 1;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.book-container {
    width: 100%;
    max-width: 800px;
    margin: 0 auto 40px;
    perspective: 1000px;
}

.book-cover {
    background-color: var(--light);
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 40px;
    position: relative;
    transform-style: preserve-3d;
    transition: transform 0.5s;
}

.logo-container {
    text-align: center;
    margin-bottom: 30px;
}

.round-logo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.tab-container {
    position: relative;
}

.tabs {
    display: flex;
    margin-bottom: 20px;
    border-bottom: 2px solid #eee;
}

.tab-button {
    background: none;
    border: none;
    padding: 12px 25px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    position: relative;
    transition: all 0.3s;
}

.tab-button.active {
    color: var(--primary);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary);
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s;
}

.tab-content.active {
    display: block;
}

.auth-form {
    max-width: 400px;
    margin: 0 auto;
}

.auth-form h2 {
    color: var(--primary);
    margin-bottom: 20px;
    text-align: center;
    font-size: 1.8rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--dark);
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: all 0.3s;
}

.form-group input:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 2px rgba(23, 28, 143, 0.2);
}

.password-container {
    position: relative;
}

.toggle-password {
    position: absolute;
    right: 12px;
    top: 38px;
    cursor: pointer;
    user-select: none;
    color: var(--dark);
    opacity: 0.6;
    transition: opacity 0.3s;
}

.toggle-password:hover {
    opacity: 1;
}

.btn {
    width: 100%;
    padding: 14px;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 10px;
}

.btn:hover {
    background-color: #0f1370;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.forgot-password {
    display: block;
    text-align: right;
    color: var(--secondary);
    text-decoration: none;
    font-size: 14px;
    margin-top: -10px;
    margin-bottom: 20px;
}

.forgot-password:hover {
    text-decoration: underline;
}

.error {
    color: var(--secondary);
    background-color: #fde8e8;
    padding: 12px;
    border-radius: 5px;
    margin-bottom: 20px;
    font-size: 14px;
    border-left: 4px solid var(--secondary);
}

.success {
    color: #28a745;
    background-color: #e8f9f0;
    padding: 12px;
    border-radius: 5px;
    margin-bottom: 20px;
    font-size: 14px;
    border-left: 4px solid #28a745;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 100;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: var(--light);
    padding: 30px;
    border-radius: 10px;
    width: 100%;
    max-width: 450px;
    position: relative;
    animation: modalFadeIn 0.3s;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 24px;
    font-weight: bold;
    color: var(--dark);
    cursor: pointer;
    transition: color 0.3s;
}

.close:hover {
    color: var(--secondary);
}

/* Footer */
.footer {
    background-color: var(--primary);
    color: var(--light);
    text-align: center;
    padding: 20px;
    margin-top: auto;
}

.footer p {
    margin: 0;
    font-size: 14px;
    opacity: 0.8;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes modalFadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .banner {
        padding: 40px 20px;
    }
    
    .banner-title {
        font-size: 2.2rem;
    }
    
    .banner-subtitle {
        font-size: 1rem;
    }
    
    .book-cover {
        padding: 30px 20px;
    }
    
    .tab-button {
        padding: 10px 15px;
        font-size: 15px;
    }
    
    .auth-form h2 {
        font-size: 1.5rem;
    }
}
/* Reset Link Container */
.reset-link-container {
    background-color: #f8f9fa;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 20px;
    margin: 20px auto;
    max-width: 600px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.reset-link-container h3 {
    color: var(--primary);
    margin-bottom: 15px;
}

.reset-link-box {
    background-color: white;
    border: 1px solid #ddd;
    border-radius: 5px;
    padding: 15px;
    margin: 15px 0;
}

#reset-link-input {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
    background-color: #f9f9f9;
}

.copy-btn {
    background-color: var(--primary);
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.copy-btn:hover {
    background-color: #0f1370;
}

.reset-note {
    font-size: 0.9rem;
    color: #666;
    font-style: italic;
}
.auth-form-container {
    max-width: 500px;
    margin: 0 auto;
    padding: 20px;
}

.auth-form-container h2 {
    text-align: center;
    margin-bottom: 15px;
    color: var(--primary);
}

.auth-form-container p {
    text-align: center;
    margin-bottom: 25px;
    color: var(--dark);
}

.password-strength {
    margin-top: 5px;
    font-size: 0.8rem;
    color: #666;
}

.password-strength.weak {
    color: var(--secondary);
}

.password-strength.medium {
    color: #ff9800;
}

.password-strength.strong {
    color: #4caf50;
}