/* Kurumsal Sayfa Stilleri */
.kurumsal-main {
    min-height: calc(100vh - 200px);
    padding: 80px 0 40px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

/* Sidebar Stilleri */
.kurumsal-sidebar {
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    position: sticky;
    top: 160px;
    margin-bottom: 30px;
}

.sidebar-header {
    background: #13a89e;
    color: white;
    padding: 25px 20px;
    text-align: center;
}

.sidebar-header h3 {
    margin: 0;
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: 1px;
}

.sidebar-nav {
    padding: 0;
}

.sidebar-menu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-item {
    border-bottom: 1px solid #f1f3f4;
}

.sidebar-item:last-child {
    border-bottom: none;
}

.sidebar-link {
    display: flex;
    align-items: center;
    padding: 18px 20px;
    color: #495057;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
}

.sidebar-link:hover {
    background: #f8f9fa;
    color: #13a89e;
    text-decoration: none;
    transform: translateX(5px);
}

.sidebar-item.active .sidebar-link {
    background: #13a89e;
    color: white;
    border-left: 4px solid #0f8a82;
}

.sidebar-link i {
    margin-right: 12px;
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.container-fluid{
    margin-top: 7rem;
}

/* Ana İçerik Stilleri */
.kurumsal-content {
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.content-section {
    display: none;
    padding: 40px;
    min-height: 600px;
}

.content-section.active {
    display: block;
}

.section-header {
    margin-bottom: 40px;
    text-align: center;
}

.section-header h1 {
    color: #000000;
    font-size: 2.7rem;
    font-weight: 500;
    margin-bottom: 15px;
}

.section-divider {
    width: 80px;
    height: 4px;
    background: #13a89e;
    margin: 0 auto;
    border-radius: 2px;
}

.section-content {
    line-height: 1.8;
    color: #495057;
}

.section-content .lead {
    font-size: 1.2rem;
    font-weight: 500;
    color: #3b3a3a;
    margin-bottom: 25px;
}

.section-content p {
    margin-bottom: 20px;
    font-size: 1.05rem;
}

/* Hakkımızda Bölümü */
.about-image {
    text-align: center;
    padding: 20px;
}

.about-image img {
    max-width: 200px;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.1));
}

/* Başkan Mesajı Stilleri */
.president-message {
    background: rgba(19, 168, 158, 0.05);
    border-radius: 15px;
    padding: 30px;
    margin-top: 20px;
}

.president-photo img {
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.president-quote {
    background: white;
    border-left: 5px solid #13a89e;
    padding: 30px;
    border-radius: 10px;
    margin: 0;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.president-quote p {
    font-size: 1.2rem;
    font-style: italic;
    color: #000000;
    margin-bottom: 20px;
}

.president-quote footer {
    text-align: right;
    color: #6c757d;
}

/* Yönetim Kurulu Stilleri */
.management-grid {
    margin-top: 20px;
}

.management-card {
    background: white;
    border: 1px solid rgba(19, 168, 158, 0.2);
    border-radius: 15px;
    transition: all 0.3s ease;
    height: 100%;
}

.management-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(19, 168, 158, 0.15);
    border-color: #13a89e;
}

.management-card .card-body {
    padding: 30px 25px;
    text-align: center;
}

.management-card h5 {
    color: #13a89e;
    font-weight: 600;
    margin-bottom: 15px;
}

/* Tarihçe Stilleri */
.timeline {
    position: relative;
    padding: 20px 0;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: #13a89e;
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    padding-left: 120px;
}

.timeline-year {
    position: absolute;
    left: 0;
    top: 0;
    width: 80px;
    height: 80px;
    background: #13a89e;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: 0 5px 15px rgba(19, 168, 158, 0.3);
}

.timeline-content {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    border-left: 4px solid #13a89e;
}

.timeline-content h4 {
    color: #13a89e;
    font-weight: 600;
    margin-bottom: 10px;
}



/* Responsive Tasarım */
@media (max-width: 991.98px) {
    .kurumsal-main {
        padding: 40px 0;
    }
    
    .kurumsal-sidebar {
        position: static;
        margin-bottom: 30px;
    }
    
    .sidebar-nav {
        display: none;
    }
    
    .sidebar-header {
        cursor: pointer;
        position: relative;
    }
    
    .sidebar-header::after {
        content: '\f107';
        font-family: 'Font Awesome 6 Free';
        font-weight: 900;
        position: absolute;
        right: 20px;
        top: 50%;
        transform: translateY(-50%);
        transition: transform 0.3s ease;
    }
    
    .sidebar-nav.show {
        display: block;
    }
    
    .sidebar-nav.show ~ .sidebar-header::after {
        transform: translateY(-50%) rotate(180deg);
    }
    
    .content-section {
        padding: 30px 20px;
    }
    
    .section-header h1 {
        font-size: 2rem;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item {
        padding-left: 80px;
    }
    
    .timeline-year {
        width: 60px;
        height: 60px;
        font-size: 0.9rem;
    }
}

@media (max-width: 767.98px) {
    .kurumsal-main {
        padding: 40px 0 20px 0;
    }
    
    .content-section {
        padding: 20px 15px;
    }
    
    .section-header h1 {
        font-size: 1.8rem;
    }
    
    .president-message {
        padding: 20px;
    }
    
    .president-quote {
        padding: 20px;
    }
    
    .president-quote p {
        font-size: 1.1rem;
    }
    
    .timeline-item {
        padding-left: 70px;
    }
    
    .timeline-year {
        width: 50px;
        height: 50px;
        font-size: 0.8rem;
    }
    
    .timeline-content {
        padding: 20px;
    }
}

/* Animasyonlar */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content-section.active {
    animation: fadeInUp 0.6s ease-out;
}

/* Scroll Behavior */
html {
    scroll-behavior: smooth;
}