:root {
    --primary-color: #3498db;
    --secondary-color: #2c3e50;
    --accent-color: #f39c12;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --warning-color: #f1c40f;
    --info-color: #3498db;
    --gray-color: #6c757d;
    --light-gray-color: #e9ecef;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--light-color);
    color: var(--dark-color);
}

.fill {
    background-color: #f8f9fa;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Scroll to top button */
#yukari {
    position: fixed;
    bottom: 25px;
    right: 25px;
    width: 50px;
    height: 50px;
    text-align: center;
    line-height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    z-index: 999;
    opacity: 0.8;
}

#yukari:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
    opacity: 1;
}

#yukari i {
    color: #fff;
    font-size: 20px;
}

#search {
    font-size: 18px;
}

/* Card styling */
.content-card {
    transition: all 0.3s ease;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
}

.content-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* Button styling */
.btn {
    border-radius: 5px;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

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

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

/* Form controls */
.form-control, .form-select {
    border-radius: 5px;
    border: 1px solid #dee2e6;
    padding: 10px 15px;
}

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

/* Navbar styling */
.navbar {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

/* Footer styling */
footer {
    margin-top: auto;
}

/* Search container styling */
.search-container {
    border-radius: 50px;
    overflow: hidden;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.search-container:hover, .search-focused {
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.search-container .input-group-text {
    border-top-left-radius: 50px;
    border-bottom-left-radius: 50px;
    padding-left: 20px;
}

.search-container .form-control {
    border-top-right-radius: 50px;
    border-bottom-right-radius: 50px;
    padding-right: 20px;
}

/* Feature icon styling */
.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Badge styling */
.badge {
    font-weight: 500;
    padding: 0.5em 0.8em;
}

/* Card header styling */
.card-header {
    font-weight: 600;
}

/* Form label styling */
.form-label {
    font-weight: 500;
}

/* Social icons styling */
.social-icons a {
    transition: all 0.3s ease;
}

.social-icons a:hover {
    transform: translateY(-3px);
}

/* Hero section styling */
.display-4, .display-5 {
    font-weight: 700;
}

.lead {
    font-weight: 400;
}

/* Content list styling */
.content-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Selected form control styling */
.form-select.selected {
    border-color: var(--primary-color);
    background-color: rgba(52, 152, 219, 0.05);
}

/* Card title styling */
.card-title {
    font-weight: 600;
}

/* Card text styling */
.card-text {
    line-height: 1.6;
}