/* Reset ve Temel Stiller */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* Renk Paleti */
:root {
    --primary-blue: #1e3a8a;
    --secondary-blue: #3b82f6;
    --light-blue: #dbeafe;
    --lighter-blue: #eff6ff;
    --gold: #f59e0b;
    --light-gold: #fef3c7;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-600: #4b5563;
    --gray-800: #1f2937;
    --gray-900: #111827;
}

/* Header ve Navigation */
.header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-image {
    width: 50px;
    height: 50px;
    object-fit: cover;
}

.logo-text {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.logo-title {
    color: var(--gray-600);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.logo-text h2 {
    color: var(--primary-blue);
    font-weight: 700;
    font-size: 1.5rem;
    margin: 0;
}

.logo-text span {
    color: var(--gray-600);
    font-size: 0.875rem;
    font-weight: 400;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--gray-800);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-blue);
    transition: width 0.3s ease;
}

.nav-menu a:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-blue);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, rgba(30, 58, 138, 0.9) 0%, rgba(59, 130, 246, 0.9) 100%), url('../backgrounds/slider-bg.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--white);
    padding: 120px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-image {
    order: 1;
}

.hero-content {
    order: 2;
}

.hero-content h1 {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-content p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--primary-blue);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-blue);
    transform: translateY(-2px);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-photo {
    width: 400px;
    height: 400px;
    object-fit: contain;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* Services Section */
.services {
    padding: 80px 0;
    background: var(--gray-50);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid var(--gray-100);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--light-blue);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: var(--primary-blue);
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.service-card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.service-card ul li {
    color: var(--gray-600);
    font-size: 0.875rem;
    line-height: 1.5;
    margin-bottom: 0.5rem;
    padding-left: 1rem;
    position: relative;
}

.service-card ul li:before {
    content: "•";
    color: var(--primary-blue);
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* About Section */
.about {
    padding: 80px 0;
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    display: flex;
    justify-content: center;
}

.profile-photo {
    width: 300px;
    height: 400px;
    object-fit: cover;
    border-radius: 20px;
    border: 3px solid var(--primary-blue);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.about-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1.5rem;
}

.about-text p {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
    padding: 1.5rem;
    background: var(--light-blue);
    border-radius: 12px;
    border: 1px solid var(--primary-blue);
}

.stat h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

.stat p {
    color: var(--gray-600);
    font-weight: 500;
    margin: 0;
}

/* Blog Section */
.blog {
    padding: 80px 0;
    background: var(--gray-50);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.blog-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.blog-image {
    height: 200px;
    background: var(--light-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--primary-blue);
    overflow: hidden;
    border-radius: 12px 12px 0 0;
}

.blog-card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px 12px 0 0;
}

.blog-main-image {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.blog-header {
    position: relative;
    margin-bottom: 1rem;
}

.blog-date {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(30, 58, 138, 0.9);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

.blog-content {
    padding: 2rem;
}

.blog-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.blog-content h3 a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

.blog-content h3 a:hover {
    color: var(--primary-blue);
}

.blog-content p {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.read-more {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: var(--secondary-blue);
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.contact-info {
    display: grid;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--light-blue);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--primary-blue);
    flex-shrink: 0;
}

.contact-item h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: 0.5rem;
}

.contact-item p {
    color: var(--gray-600);
    line-height: 1.5;
}

.contact-form {
    background: var(--gray-50);
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid var(--gray-200);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(30, 58, 138, 0.1);
}

.map-container {
    height: 300px;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.map-placeholder {
    height: 100%;
    background: var(--light-blue);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--primary-blue);
}

.map-placeholder p {
    margin-top: 1rem;
    color: var(--gray-600);
    font-size: 1rem;
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--white);
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    color: var(--secondary-blue);
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-section p {
    color: var(--gray-300);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

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

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

.footer-section ul li a {
    color: var(--gray-300);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--secondary-blue);
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: 2rem;
    text-align: center;
    color: var(--gray-400);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .logo-image {
        width: 40px;
        height: 40px;
    }

    .logo-title {
        font-size: 0.625rem;
    }

    .logo-text h2 {
        font-size: 1.125rem;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-photo {
        width: 300px;
        height: 300px;
    }

    .profile-photo {
        width: 250px;
        height: 350px;
    }

    .hero-content h1 {
        font-size: 2.2rem;
    }

    .hero-buttons {
        justify-content: center;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .services-grid,
    .blog-grid {
        grid-template-columns: 1fr;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .about-text h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .logo-image {
        width: 35px;
        height: 35px;
    }

    .logo-title {
        font-size: 0.5rem;
    }

    .logo-text h2 {
        font-size: 1rem;
    }

    .hero-photo {
        width: 250px;
        height: 250px;
    }

    .profile-photo {
        width: 200px;
        height: 280px;
    }

    .hero-content h1 {
        font-size: 1.8rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.875rem;
    }

    .service-card,
    .blog-card {
        padding: 1.5rem;
    }

    .contact-form {
        padding: 1.5rem;
    }
    
    .blog-main-image {
        max-height: 250px;
    }
    
    .blog-image {
        height: 120px;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

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

.service-card,
.blog-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Blog Detail Styles */
.blog-detail {
    padding: 120px 0 80px;
    background: var(--white);
}

.blog-header {
    text-align: center;
    margin-bottom: 3rem;
}

.blog-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1rem;
    color: var(--gray-600);
    font-size: 0.875rem;
}

.blog-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.blog-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.blog-excerpt {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

.blog-content {
    max-width: 800px;
    margin: 0 auto;
}

.blog-text {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--gray-800);
}

.blog-text h2 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--gray-900);
    margin: 2.5rem 0 1rem;
    border-bottom: 2px solid var(--light-blue);
    padding-bottom: 0.5rem;
}

.blog-text h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    margin: 1.5rem 0 0.75rem;
}

.blog-text p {
    margin-bottom: 1.25rem;
}

.blog-text ul, .blog-text ol {
    margin-bottom: 1.25rem;
    padding-left: 1.5rem;
}

.blog-text li {
    margin-bottom: 0.5rem;
}

.blog-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.blog-table th,
.blog-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.blog-table th {
    background: var(--primary-blue);
    color: var(--white);
    font-weight: 600;
}

.blog-table tr:nth-child(even) {
    background: var(--gray-50);
}

.table-container {
    margin: 2rem 0;
    overflow-x: auto;
}

.important-notes {
    margin: 2rem 0;
}

.note {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.note.warning {
    background: var(--lighter-blue);
    border: 1px solid var(--secondary-blue);
    color: var(--primary-blue);
}

.note.info {
    background: var(--light-blue);
    border: 1px solid var(--primary-blue);
    color: var(--primary-blue);
}

.note.success {
    background: #d1fae5;
    border: 1px solid #10b981;
    color: #065f46;
}

.note i {
    font-size: 1.25rem;
    margin-top: 0.25rem;
}

.documents-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.document-category {
    background: var(--gray-50);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--gray-200);
}

.document-category h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.step {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    border: 2px solid var(--light-blue);
    position: relative;
}

.step-number {
    position: absolute;
    top: -15px;
    left: 20px;
    background: var(--primary-blue);
    color: var(--white);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
}

.company-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.company-type {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--gray-200);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.company-type h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--light-blue);
    padding-bottom: 0.5rem;
}

.calculation-examples {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.calculation {
    background: var(--lighter-blue);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--secondary-blue);
}

.calculation h3 {
    color: var(--primary-blue);
    margin-bottom: 0.75rem;
}

.formula {
    background: var(--white);
    padding: 1rem;
    border-radius: 6px;
    margin-top: 1rem;
    text-align: center;
    border: 1px solid var(--gray-200);
}

.common-mistakes {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2rem 0;
}

.mistake, .recommendation {
    padding: 1.5rem;
    border-radius: 8px;
}

.mistake {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

.recommendation {
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #166534;
}

.mistake i, .recommendation i {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    display: block;
}

.blog-cta {
    background: var(--light-blue);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    margin: 3rem 0;
    border: 2px solid var(--primary-blue);
}

.blog-cta h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.blog-navigation {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-200);
}

/* Responsive Blog Detail */
@media (max-width: 768px) {
    .blog-header h1 {
        font-size: 2rem;
    }
    
    .blog-meta {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .blog-main-image {
        max-height: 300px;
    }
    
    .blog-image {
        height: 150px;
    }
    
    .common-mistakes {
        grid-template-columns: 1fr;
    }
    
    .company-types {
        grid-template-columns: 1fr;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    .calculation-examples {
        grid-template-columns: 1fr;
    }
}

/* Loading Animation */
.loading {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.loading.loaded {
    opacity: 1;
    transform: translateY(0);
}