/* style.css - Main Application Stylesheet */

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #2ecc71;
    --danger-color: #e74c3c;
    --dark-color: #333333;
    --light-color: #f4f7f6;
    --white-color: #ffffff;
    --border-color: #dddddd;
    --font-stack: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

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

body {
    font-family: var(--font-stack);
    background-color: var(--light-color);
    color: var(--dark-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header and Navbar */
.site-header {
    background-color: var(--primary-color);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar {
    padding: 15px 0;
    position: relative;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    color: var(--white-color);
    font-size: 22px;
    font-weight: bold;
    text-decoration: none;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
}
 
.nav-logo img { 
    height: 28px;
    width: auto;
    display: block;
    object-fit: contain;
}

.nav-menu {
    list-style: none;
    display: flex;
    align-items: center;
}

.nav-link {
    color: #ecf0f1;
    text-decoration: none;
    padding: 8px 16px;
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-btn {
    background-color: var(--secondary-color);
    color: var(--white-color) !important;
    border-radius: 4px;
    padding: 8px 18px;
    margin-left: 10px;
}

.nav-btn:hover {
    background-color: #2980b9;
}

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

.logout-btn:hover {
    background-color: #c0392b;
}

/* Hamburger Menu */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--white-color);
    transition: all 0.3s ease-in-out;
}

/* Main Layout */
.main-content {
    flex: 1;
    width: 100%;
    max-width: 1200px;
    margin: 40px auto;
    padding: 0 20px;
}

/* Footer Layout */
.site-footer {
    background-color: var(--primary-color);
    color: #bdc3c7;
    padding: 20px 0;
    text-align: center;
    margin-top: auto;
    font-size: 14px;
    border-top: 3px solid var(--secondary-color);
}

/* Common UI Components */
.card {
    background-color: var(--white-color);
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    padding: 30px;
    margin-bottom: 30px;
    border: 1px solid var(--border-color);
}

/* Responsive Media Queries */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }
    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .nav-menu {
        position: absolute;
        top: 60px;
        left: -100%;
        width: 100%;
        flex-direction: column;
        background-color: var(--primary-color);
        transition: 0.3s;
        box-shadow: 0 10px 15px rgba(0,0,0,0.1);
        padding: 20px 0;
        z-index: 1000;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        margin: 10px 0;
        width: 100%;
        text-align: center;
    }

    .nav-btn {
        display: inline-block;
        margin-left: 0;
    }
}

/* Authentication Form Styles */
.form-container {
    max-width: 450px;
    margin: 40px auto;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--primary-color);
}

.form-control {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 15px;
    transition: border-color 0.2s;
}

.form-control:focus {
    border-color: var(--secondary-color);
    outline: none;
}

.btn-block {
    width: 100%;
}

.form-footer {
    margin-top: 20px;
    text-align: center;
    font-size: 14px;
    color: #666;
}

.form-footer a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 600;
}

.form-footer a:hover {
    text-decoration: underline;
}

/* Alert Message Styling */
.alert {
    padding: 12px 15px;
    border-radius: 4px;
    margin-bottom: 20px;
    font-size: 14px;
    line-height: 1.5;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

/* Dashboard Overview Widgets */
.overview-grid {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.widget-card {
    flex: 1;
    min-width: 250px;
    background-color: var(--white-color);
    padding: 25px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(0,0,0,0.02);
    text-align: center;
}

.widget-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--secondary-color);
    margin-top: 10px;
}

/* Visual Dashboard Grid Navigation Buttons */
.nav-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 15px;
}

.nav-card {
    background-color: var(--white-color);
    padding: 30px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 15px rgba(0,0,0,0.04);
    text-decoration: none;
    color: var(--dark-color);
    transition: transform 0.2s, border-color 0.2s;
}

.nav-card:hover {
    transform: translateY(-3px);
    border-color: var(--secondary-color);
}

.nav-card h3 {
    color: var(--primary-color);
    margin-bottom: 8px;
    font-size: 16px;
}

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}

/* Dynamic Tab Navigation Styles */
.tab-navigation {
    display: flex;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 30px;
    gap: 15px;
}

.tab-btn {
    background: none;
    border: none;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 600;
    color: #7f8c8d;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.25s ease;
}

.tab-btn:hover {
    color: var(--primary-color);
}

.tab-btn.active {
    color: var(--secondary-color);
    border-bottom-color: var(--secondary-color);
}

.tab-content {
    display: none;
}