/* General Styles */
:root {
    --primary-color: #3498db;
    --secondary-color: #2ecc71;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --dark-color: #2c3e50;
    --light-color: #ecf0f1;
    --gray-color: #95a5a6;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.6;
}

a {
    color: var(--primary-color);
    text-decoration: none;
}

a:hover {
    color: #2980b9;
    text-decoration: none;
}

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

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

.btn-secondary {
    background-color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.btn-secondary:hover {
    background-color: #27ae60;
    border-color: #27ae60;
}

.btn-outline-secondary {
    color: var(--secondary-color);
    border-color: var(--secondary-color);
}

.btn-outline-secondary:hover {
    background-color: var(--secondary-color);
    color: white;
}

.alert {
    border-radius: 0.25rem;
}

/* Navbar */
.navbar {
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-weight: 700;
    color: var(--dark-color);
}

.navbar-brand span {
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 5rem 0;
    margin-bottom: 2rem;
    border-radius: 0 0 20px 20px;
}

.hero h1 {
    font-weight: 700;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Forms */
.form-control {
    border-radius: 0.25rem;
    padding: 0.75rem 1rem;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(52, 152, 219, 0.25);
}

.input-group-text {
    background-color: #e9ecef;
}

/* Cards */
.card {
    border: none;
    border-radius: 0.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0,0,0,0.075);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.1);
}

.card-header {
    background-color: white;
    border-bottom: 1px solid rgba(0,0,0,0.1);
    font-weight: 600;
}

/* Feature Boxes */
.feature-box {
    padding: 2rem;
    background-color: white;
    border-radius: 0.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0,0,0,0.075);
    height: 100%;
    transition: all 0.3s ease;
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.1);
}

.feature-box i {
    color: var(--primary-color);
}

/* QR Code */
.qr-code-container {
    padding: 1rem;
    background-color: white;
    border-radius: 0.5rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0,0,0,0.075);
}

/* Share Buttons */
.share-buttons .btn {
    margin: 0.25rem;
    min-width: 100px;
}

.btn-twitter {
    color: white;
    background-color: #1da1f2;
}

.btn-facebook {
    color: white;
    background-color: #3b5998;
}

.btn-linkedin {
    color: white;
    background-color: #0077b5;
}

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

/* Dashboard */
.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    padding: 48px 0 0;
    box-shadow: inset -1px 0 0 rgba(0, 0, 0, 0.1);
}

.sidebar-sticky {
    position: relative;
    top: 0;
    height: calc(100vh - 48px);
    padding-top: 0.5rem;
    overflow-x: hidden;
    overflow-y: auto;
}

.sidebar .nav-link {
    font-weight: 500;
    color: #333;
    padding: 0.75rem 1rem;
    border-radius: 0.25rem;
    margin-bottom: 0.25rem;
}

.sidebar .nav-link.active {
    color: white;
    background-color: var(--primary-color);
}

.sidebar .nav-link:hover:not(.active) {
    color: var(--primary-color);
    background-color: rgba(52, 152, 219, 0.1);
}

.sidebar-heading {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: #6c757d;
    padding: 0.5rem 1rem;
    font-weight: 600;
}

/* Tables */
.table {
    background-color: white;
}

.table th {
    border-top: none;
    font-weight: 600;
    color: var(--dark-color);
}

/* Responsive */
@media (max-width: 767.98px) {
    .hero {
        padding: 3rem 0;
    }
    
    .feature-box {
        margin-bottom: 1rem;
    }
}