:root {
    --primary-color: #1a8f9e; /* Turkuaz/Mavi */
    --secondary-color: #52bf90; /* Yeşil tonu */
    --accent-color: #0a4f6e; /* Koyu mavi */
    --light-color: #e0f7fa; /* Açık mavi */
}

body {
    font-family: 'Quicksand';
}

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

.navbar-brand img {
    height: 40px;
    margin-right: 10px;
}

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255,255,255,0.85);
}

.navbar-dark .navbar-nav .nav-link:hover, 
.navbar-dark .navbar-nav .nav-link.active {
    color: white;
}

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

.btn-primary:hover, .btn-primary:focus {
    background-color: #157885;
    border-color: #157885;
}

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

.btn-secondary:hover, .btn-secondary:focus {
    background-color: #42a87c;
    border-color: #42a87c;
}

/* Footer */
.footer {
    background-color: var(--accent-color);
    color: white;
    padding: 40px 0 20px;
    margin-top: 50px;
}

.footer a {
    color: #e0f7fa;
    text-decoration: none;
}

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

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 100px 0;
    margin-bottom: 30px;
}

.hero-section h1 {
    font-weight: 700;
    margin-bottom: 20px;
}

/* Kartlar */
.card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-radius: 10px;
}

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

/* Giriş Sayfaları */
.login-card {
    max-width: 450px;
    margin: 50px auto;
    border: none;
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
}

.login-card .card-header {
    background-color: var(--primary-color);
    color: white;
    border-radius: 10px 10px 0 0;
    padding: 20px;
}

.login-card .card-body {
    padding: 30px;
}

/* Dashboard Stili */
#sidebar-wrapper {
    min-height: 100vh;
    margin-left: -15rem;
    transition: margin 0.25s ease-out;
}

#sidebar-wrapper .sidebar-heading {
    padding: 0.875rem 1.25rem;
    font-size: 1.2rem;
}

#sidebar-wrapper .list-group {
    width: 15rem;
}

#page-content-wrapper {
    min-width: 100vw;
}

#wrapper.toggled #sidebar-wrapper {
    margin-left: 0;
}

.list-group-item {
    border: none;
    padding: 15px 30px;
}

.list-group-item.active {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

.bg-light-gray {
    background-color: #f5f5f5;
    border-radius: 50%;
}

.primary-text {
    color: var(--primary-color);
}

.rounded-full {
    border-radius: 50%;
}

@media (min-width: 768px) {
    #sidebar-wrapper {
        margin-left: 0;
    }
    
    #page-content-wrapper {
        min-width: 0;
        width: 100%;
    }
    
    #wrapper.toggled #sidebar-wrapper {
        margin-left: -15rem;
    }
}