/* Base styles for all pages */
:root {
    --primary-color: #4a6bff;
    --secondary-color: #f8f9fa;
    --accent-color: #ff6b6b;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --text-color: #333;
    --light-text: #6c757d;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --bg-color: #f5f7ff;
    --container-bg: white;
    --input-bg: white;
    --input-border: #ddd;
    --card-header-bg: #f1f3ff;
}

.dark-mode {
    --primary-color: #5d7dff;
    --secondary-color: #2d3748;
    --accent-color: #ff6b6b;
    --success-color: #38a169;
    --warning-color: #d69e2e;
    --info-color: #4299e1;
    --text-color: #f7fafc;
    --light-text: #a0aec0;
    --bg-color: #1a202c;
    --container-bg: #2d3748;
    --input-bg: #4a5568;
    --input-border: #4a5568;
    --card-header-bg: #2d3748;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color 0.3s, color 0.3s;
}

/* Navigation styles */
nav {
    width: 100%;
    background: var(--container-bg);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--box-shadow);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
}

.logo {
    font-weight: bold;
    font-size: 1.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-family: sans-serif;
}

/* Hamburger menu styles */
.hamburger {
    display: none;
    cursor: pointer;
    padding: 10px;
}

.hamburger span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 5px 0;
    transition: all 0.3s ease;
}

.nav-links {
    display: flex;
    gap: 20px;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--primary-color);
}

/* Dark mode toggle */
.dark-mode-toggle {
    position: fixed;
    top: 80px;
    right: 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--box-shadow);
    z-index: 1000;
}

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

/* Button styles */
.btn {
    padding: 10px 16px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: #3a5bef;
}

.btn-success {
    background-color: var(--success-color);
    color: white;
}

.btn-success:hover {
    background-color: #218838;
}

.btn-danger {
    background-color: var(--accent-color);
    color: white;
}

.btn-danger:hover {
    background-color: #e04f5f;
}

/* Badge styles */
.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success {
    background-color: var(--success-color);
    color: white;
}

.badge-warning {
    background-color: var(--warning-color);
    color: #212529;
}

.badge-danger {
    background-color: var(--accent-color);
    color: white;
}

.badge-info {
    background-color: var(--info-color);
    color: white;
}

/* Form styles */
.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-color);
}

select, input {
    width: 100%;
    padding: 12px;
    background-color: var(--input-bg);
    color: var(--text-color);
    border: 1px solid var(--input-border);
    border-radius: var(--border-radius);
    font-size: 16px;
    transition: all 0.3s;
}

select:focus, input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(74, 107, 255, 0.2);
}

/* Responsive styles */
@media (max-width: 768px) {
    .hamburger {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background-color: var(--container-bg);
        flex-direction: column;
        align-items: center;
        padding: 20px 0;
        transition: left 0.3s ease;
        box-shadow: var(--box-shadow);
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-links a {
        padding: 15px;
        width: 100%;
        text-align: center;
    }
    
    .dark-mode-toggle {
        top: 70px;
    }
}

/* Modal Overlay Styles */
#custom-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
}

#custom-modal {
    background-color: var(--container-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 25px;
    max-width: 450px;
    width: 90%;
    z-index: 1001;
    animation: modalFadeIn 0.3s ease-out;
}

#custom-modal p {
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.5;
    color: var(--text-color);
}

/* Modal Form Styles */
.modal-title {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

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

.modal-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.modal-form-group input {
    width: 100%;
    padding: 10px;
    border-radius: var(--border-radius);
    border: 1px solid var(--input-border);
    background-color: var(--input-bg);
    color: var(--text-color);
}

.modal-buttons {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.modal-buttons button {
    flex: 1;
}

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

/* Dark mode specific modal styles */
.dark-mode #custom-modal {
    border: 1px solid var(--input-border);
}