/* === DEĞİŞKENLER VE TEMEL AYARLAR === */
:root {
    --linde-blue: #00559A;
    --accent-orange: #FF6700;
    --dark-text: #212529;
    --light-gray-bg: #F0F4F8;
    --white: #FFFFFF;
    --border-color: #dee2e6;

    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Roboto', sans-serif;
}

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

body {
    font-family: var(--font-body);
    color: var(--dark-text);
    line-height: 1.6;
    background-color: var(--white);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

h1, h2, h3 {
    font-family: var(--font-heading);
    color: var(--linde-blue);
    font-weight: 700;
    margin-bottom: 1rem;
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2.2rem; text-align: center; margin-bottom: 2rem; }
h3 { font-size: 1.4rem; }

section {
    padding: 4rem 0;
}

a {
    color: var(--accent-orange);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--linde-blue);
}

/* === HEADER === */
.main-header {
    background-color: var(--white);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--linde-blue);
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

.main-nav a {
    color: var(--dark-text);
    font-weight: 500;
}

.header-contact {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.phone-number {
    font-weight: 500;
    color: var(--dark-text);
}

/* === BUTONLAR === */
.cta-button {
    background-color: var(--accent-orange);
    color: var(--white);
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.cta-button:hover {
    background-color: #e65c00;
    color: var(--white);
}

.cta-button-secondary {
    background-color: var(--white);
    color: var(--linde-blue);
    padding: 0.8rem 1.5rem;
    border-radius: 5px;
    font-weight: 500;
    border: 1px solid var(--linde-blue);
    transition: all 0.3s ease;
}

.cta-button-secondary:hover {
    background-color: var(--linde-blue);
    color: var(--white);
}

/* === HERO SLIDER BÖLÜMÜ === */
.hero-slider {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

.slider-container {
    width: 100%;
    height: 100%;
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.slide {
    min-width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    color: var(--white);
}

.slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 44, 88, 0.5); /* Koyu mavi overlay */
}

.slide .container {
    position: relative;
    z-index: 2;
}

.slide h1 {
    color: var(--white);
    font-size: 3.5rem;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.6);
}

.slide p {
    color: var(--white);
    font-size: 1.3rem;
    max-width: 700px;
    margin: 1rem auto 2rem auto;
    text-shadow: 1px 1px 4px rgba(0,0,0,0.5);
}

.slider-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 2rem;
    z-index: 3;
}

.slider-nav button {
    background-color: rgba(255,255,255,0.2);
    border: none;
    color: var(--white);
    font-size: 2rem;
    cursor: pointer;
    padding: 1rem;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s ease;
}

.slider-nav button:hover {
    background-color: rgba(255,255,255,0.5);
}

/* === İÇ SAYFA BAŞLIĞI === */
.page-header {
    background-color: var(--light-gray-bg);
    padding: 3rem 0;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
}

/* === İÇ SAYFA İÇERİK ALANI === */
.page-content {
    padding: 4rem 0;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

@media (min-width: 992px) {
    .content-grid {
        grid-template-columns: 3fr 1fr;
    }
}

.main-content h2, .main-content h3 {
    text-align: left;
}

.main-content h3 {
    margin-top: 2rem;
    color: var(--dark-text);
    border-bottom: 2px solid var(--accent-orange);
    padding-bottom: 0.5rem;
    display: inline-block;
}

.main-content p, .main-content ul {
    margin-bottom: 1rem;
}

.main-content ul {
    list-style-position: inside;
    padding-left: 1rem;
}

.sidebar .widget {
    background-color: var(--light-gray-bg);
    padding: 1.5rem;
    border-radius: 5px;
}

.sidebar .widget h4 {
    font-family: var(--font-heading);
    color: var(--linde-blue);
    margin-bottom: 1rem;
}

.sidebar .widget ul {
    list-style: none;
}

.sidebar .widget li {
    margin-bottom: 0.5rem;
    border-bottom: 1px solid #ddd;
    padding-bottom: 0.5rem;
}

/* === İLETİŞİM SAYFASI === */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
}

@media (min-width: 992px) {
    .contact-grid {
        grid-template-columns: 2fr 1fr;
    }
}

.contact-form h3, .contact-info h3 {
    text-align: left;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-family: var(--font-body);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--linde-blue);
    box-shadow: 0 0 5px rgba(0, 85, 154, 0.3);
}

.contact-info address p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.map-placeholder {
    width: 100%;
    height: 250px;
    background-color: var(--light-gray-bg);
    border-radius: 5px;
    margin-top: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #666;
}

/* === HAKKIMIZDA KISA BÖLÜM === */
.about-us-short .container {
    display: flex;
    align-items: center;
    gap: 3rem;
}

.about-text {
    flex: 1;
}

.about-image {
    flex: 1;
    height: 300px;
    background-color: var(--light-gray-bg);
    border-radius: 10px;
}

/* === ÖNE ÇIKAN ÜRÜNLER (ÜRÜN SLIDER) === */
.featured-products {
    background-color: var(--light-gray-bg);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.section-header h2 {
    margin-bottom: 0;
    text-align: left;
}

.product-slider-nav button {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    color: var(--linde-blue);
    font-size: 1.2rem;
    cursor: pointer;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    margin-left: 0.5rem;
}

.product-slider-nav button:hover {
    background-color: var(--linde-blue);
    color: var(--white);
}

.product-slider-nav button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background-color: #e9ecef;
}

.product-slider-wrapper {
    overflow: hidden;
    position: relative;
}

.product-categories {
    display: flex;
    gap: 2rem;
    transition: transform 0.5s ease;
    padding-bottom: 1rem; /* For box-shadow visibility */
}

.category-card {
    background-color: var(--white);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    text-align: center;
    padding: 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    flex-shrink: 0;
    width: 280px;
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.category-card .card-image {
    height: 150px;
    background-color: var(--light-gray-bg);
    margin-bottom: 1.5rem;
    border-radius: 5px;
}

.cta-button-tertiary {
    font-weight: 500;
}

/* === AVANTAJLAR BÖLÜMÜ === */
.advantages {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    text-align: center;
}

.advantage-item .icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem auto;
    background-color: var(--light-gray-bg);
    border-radius: 50%;
}

/* === İLETİŞİM CTA === */
.contact-cta {
    background-color: var(--linde-blue);
    color: var(--white);
    text-align: center;
}

.contact-cta h2, .contact-cta p {
    color: var(--white);
}

.cta-button-large {
    background-color: var(--accent-orange);
    color: var(--white);
    padding: 1rem 2.5rem;
    border-radius: 5px;
    font-weight: 700;
    font-size: 1.1rem;
    display: inline-block;
    margin-top: 1rem;
    transition: background-color 0.3s ease;
}
.cta-button-large:hover {
    background-color: #e65c00;
    color: var(--white);
}

/* === FOOTER === */
.main-footer {
    background-color: #122a44; /* Koyu Mavi Tonu */
    color: var(--white);
    padding-top: 3rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    padding-bottom: 3rem;
}

.footer-col h4 {
    font-family: var(--font-heading);
    color: var(--white);
    margin-bottom: 1rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 0.5rem;
}

.footer-col a {
    color: rgba(255,255,255,0.8);
    transition: color 0.3s ease;
}

.footer-col a:hover {
    color: var(--white);
}

.logo-footer {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--white);
    display: block;
    margin-bottom: 0.5rem;
}

.linde-logo {
    max-width: 150px;
    opacity: 0.8;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.2);
    text-align: center;
    padding: 1.5rem 0;
    font-size: 0.9rem;
}

.footer-bottom p {
    color: rgba(255,255,255,0.6);
}
.footer-bottom a {
    color: rgba(255,255,255,0.6);
}
.footer-bottom a:hover {
    color: var(--white);
}