/* Genel Stiller */
:root {
    --primary-color: #e84773;
    --secondary-color: #333;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gray-color: #6c757d;
    --white-color: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2.5rem;
    color: var(--secondary-color);
    position: relative;
    padding-bottom: 15px;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

/* Başlığı ortalamak için ek bir kapsayıcı stil */
h2.section-title {
    display: table;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 30px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.primary-btn {
    background-color: var(--primary-color);
    color: var(--white-color);
    border: 2px solid var(--primary-color);
}

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

.secondary-btn {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

.tertiary-btn {
    background-color: var(--secondary-color);
    color: var(--white-color);
    border: 2px solid var(--secondary-color);
}

.tertiary-btn:hover {
    background-color: transparent;
    color: var(--secondary-color);
}

/* Header Stili */
header {
    background-color: var(--white-color);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    order: 1;
    display: flex;
    align-items: center;
    max-width: 250px;
}

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

.logo-text {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--primary-color);
}

.logo a {
    display: flex;
    align-items: center;
}

nav {
    order: 2;
    display: flex;
    align-items: center;
}

.language-selector {
    order: 3;
    margin-left: 20px;
    margin-right: 0;
}

.language-selector button {
    background: none;
    border: none;
    padding: 5px 10px;
    cursor: pointer;
    font-weight: 500;
    color: var(--gray-color);
    transition: var(--transition);
}

.language-selector button.active {
    color: var(--primary-color);
    font-weight: 700;
}

.main-menu {
    display: flex;
}

.main-menu li {
    margin-left: 25px;
}

.main-menu a {
    color: var(--secondary-color);
    font-weight: 500;
    transition: var(--transition);
}

.main-menu a:hover {
    color: var(--primary-color);
}

.mobile-menu-btn {
    display: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--secondary-color);
}

/* Hero Bölümü */
.hero {
    color: var(--white-color);
    text-align: center;
    margin-top: 70px;
    position: relative;
}

.fullscreen-hero {
    height: 100vh;
    margin-top: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('../images/hero-bg.jpg');
    background-size: cover;
    background-position: center;
}

.hero-slider {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide {
    opacity: 1;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide-content {
    max-width: 800px;
    padding: 0 20px;
    z-index: 2;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.slider-controls {
    display: none; /* Tek slayt olduğu için kontrolleri gizliyoruz */
}

/* Hakkımızda Bölümü */
.about {
    padding: 80px 0;
    background-color: var(--white-color);
}

.about-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
}

.about-cards {
    flex: 1;
    min-width: 300px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.about-card {
    background-color: var(--light-color);
    border-radius: 10px;
    padding: 25px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.about-card:hover {
    transform: translateY(-5px);
}

.about-card h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.about-card p {
    margin-bottom: 0;
}

.about-features {
    flex: 1;
    min-width: 300px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.feature {
    text-align: center;
    padding: 25px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.feature:hover {
    transform: translateY(-5px);
}

.feature i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.feature h4 {
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.feature p {
    margin: 0;
}

/* Ürünlerimiz Bölümü */
.products {
    padding: 80px 0;
    background-color: var(--light-color);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.product-card {
    background-color: var(--white-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card:hover {
    transform: translateY(-10px);
}

.product-card.active {
    border: 2px solid var(--primary-color);
}

.product-logo {
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.product-logo img {
    max-height: 80px;
}

.product-card h3 {
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.product-card p {
    margin-bottom: 20px;
    color: var(--gray-color);
    flex-grow: 1;
}

.product-card .btn {
    margin-top: auto;
}

/* VERA Kurumsal Bölümü */
.corporate {
    padding: 80px 0;
    background-color: var(--white-color);
}

.corporate-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.corporate-card {
    background-color: var(--light-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    text-align: center;
    padding: 25px 15px;
    position: relative;
    height: 250px;
    display: flex;
    flex-direction: column;
}

.corporate-card:hover {
    transform: translateY(-10px);
}

.corporate-logo {
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 10px;
}

.corporate-logo img {
    max-height: 60px;
    width: auto;
    transition: var(--transition);
}

.corporate-card h3 {
    margin-bottom: 60px;
    color: var(--secondary-color);
    font-size: 0.95rem;
    line-height: 1.3;
    flex-grow: 0;
}

/* VERA Kurumsal Bölümü - URL Butonları */
.corporate-card .tertiary-btn {
    font-size: 0.75rem;
    padding: 8px 12px;
    position: absolute;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    width: 85%;
    max-width: 200px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* İletişim Bölümü */
.contact {
    padding: 80px 0;
    background-color: var(--light-color);
}

.contact-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
}

.contact-form {
    flex: 1;
    min-width: 300px;
    background-color: var(--white-color);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.contact-form h3 {
    margin-bottom: 20px;
    color: var(--primary-color);
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
    font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.contact-info {
    flex: 1;
    min-width: 300px;
    background-color: var(--white-color);
    padding: 30px;
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.contact-info h3 {
    margin-bottom: 20px;
    color: var(--primary-color);
}

.info-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 20px;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-right: 15px;
    margin-top: 5px;
}

.info-item h4 {
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.social-media {
    margin-top: 30px;
    display: flex;
    gap: 15px;
}

.social-media a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--light-color);
    border-radius: 50%;
    color: var(--primary-color);
    font-size: 1.2rem;
    transition: var(--transition);
}

.social-media a:hover {
    background-color: var(--primary-color);
    color: var(--white-color);
}

/* Footer Bölümü */
footer {
    background-color: var(--secondary-color);
    color: var(--white-color);
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    flex: 2;
    min-width: 300px;
    display: flex;
    flex-direction: column;
}

.footer-logo-container {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.footer-logo img {
    height: 40px;
    margin-right: 10px;
}

.footer-logo-text {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--white-color);
}

.footer-logo p {
    color: var(--light-color);
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: 15px;
}

.footer-links,
.footer-services {
    flex: 1;
    min-width: 200px;
}

.footer-links h4,
.footer-services h4 {
    margin-bottom: 20px;
    font-size: 1.2rem;
    position: relative;
    padding-bottom: 10px;
    display: inline-block;
}

.footer-links h4::after,
.footer-services h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
}

.footer-links ul li,
.footer-services ul li {
    margin-bottom: 10px;
}

.footer-links ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Yukarı Çık Butonu */
#back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: var(--white-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

#back-to-top.active {
    opacity: 1;
    visibility: visible;
}

#back-to-top:hover {
    background-color: var(--secondary-color);
    transform: translateY(-5px);
}

@media (max-width: 576px) {
    #back-to-top {
        width: 40px;
        height: 40px;
        font-size: 16px;
        bottom: 20px;
        right: 20px;
    }
}

/* Mobil Uyumluluk */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    header .container {
        flex-wrap: wrap;
        position: relative;
    }
    
    .logo {
        order: 1;
        flex: 1;
        max-width: 180px;
    }
    
    .logo-text {
        font-size: 1rem;
    }
    
    .mobile-menu-btn {
        display: block;
        margin-right: 0;
        position: absolute;
        right: 15px;
        top: 50%;
        transform: translateY(-50%);
    }
    
    .language-selector {
        position: absolute;
        right: 60px;
        top: 50%;
        transform: translateY(-50%);
    }
    
    nav {
        width: auto;
        position: static;
    }
    
    .main-menu {
        display: none;
        flex-direction: column;
        width: 100%;
        background-color: var(--white-color);
        position: absolute;
        top: 100%;
        left: 0;
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
        z-index: 1000;
    }
    
    .main-menu.active {
        display: flex;
    }
    
    .main-menu li {
        margin: 10px 0;
    }
    
    .fullscreen-hero {
        height: 80vh;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .corporate-grid {
        grid-template-columns: 1fr;
    }
    
    .about-cards {
        gap: 15px;
    }
    
    .about-card {
        padding: 20px;
    }
    
    .about-card h3 {
        font-size: 1.3rem;
    }
    
    .corporate-card .tertiary-btn {
        font-size: 0.7rem;
        padding: 6px 10px;
    }
}

@media (max-width: 576px) {
    .fullscreen-hero {
        height: 70vh;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .about-text h3,
    .contact-form h3,
    .contact-info h3 {
        font-size: 1.3rem;
    }
    
    .feature {
        padding: 15px;
    }
    
    .feature i {
        font-size: 2rem;
    }
    
    .products-grid,
    .corporate-grid {
        grid-template-columns: 1fr;
    }
    
    .slider-controls {
        bottom: 20px;
    }
    
    .prev-btn, .next-btn {
        width: 30px;
        height: 30px;
        margin: 0 10px;
    }
    
    .dot {
        width: 10px;
        height: 10px;
    }
}

@media (max-width: 480px) {
    .logo {
        max-width: 150px;
    }
    
    .logo img {
        height: 30px;
    }
    
    .logo-text {
        font-size: 0.9rem;
    }
    
    .language-selector {
        right: 50px;
    }
    
    .language-selector button {
        padding: 3px 6px;
        font-size: 0.9rem;
    }
    
    .hero {
        margin-top: 50px;
    }
}

@media (max-width: 1200px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .products-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 1200px) {
    .corporate-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .corporate-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .corporate-grid {
        grid-template-columns: 1fr;
    }
}

.psitechlab-logo img {
    max-height: 45px;
    width: auto;
}