/* CSS Variables for Butter Yellow Theme */
:root {
    --primary-color: #F7DC6F;        /* Butter Yellow */
    --primary-dark: #F4D03F;         /* Darker Yellow */
    --primary-light: #FCF3CF;        /* Light Yellow */
    --accent-color: #2C3E50;         /* Dark Blue-Gray */
    --secondary-color: #34495E;      /* Medium Blue-Gray */
    --text-dark: #2C3E50;
    --text-light: #7F8C8D;
    --text-white: #FFFFFF;
    --background-light: #FDFEFE;
    --background-dark: #F8F9FA;
    --shadow-light: rgba(247, 220, 111, 0.2);
    --shadow-dark: rgba(44, 62, 80, 0.1);
    --border-color: #E5E7EB;
    
    --font-primary: 'Space Grotesk', sans-serif;
    --font-secondary: 'Inter', sans-serif;
    
    --transition-fast: 0.2s ease;
    --transition-medium: 0.4s ease;
    --transition-slow: 0.6s ease;
    
    --border-radius: 12px;
    --border-radius-large: 20px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-secondary);
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--background-light);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-dark);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    border-radius: 2px;
}

.highlight-text {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    position: relative;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: var(--font-primary);
    font-weight: 500;
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: all var(--transition-medium);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.6s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--text-dark);
    box-shadow: 0 4px 15px var(--shadow-light);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-light);
}

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

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

.btn-full {
    width: 100%;
    justify-content: center;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(253, 254, 254, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 0.2rem 0;
    transition: all var(--transition-medium);
    height: 50px;
}

.navbar.scrolled {
    padding: 0.1rem 0;
    box-shadow: 0 2px 20px var(--shadow-dark);
    height: 45px;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-md);
    height: 100%;
}

.nav-logo .logo-img {
    height: 175px;
    width: auto;
    transition: transform var(--transition-fast);
    margin: -60px 0 -80px 0;
}

.nav-logo .logo-img:hover {
    transform: scale(1.05);
}

/* Mobilde logo daha küçük ve navbar daha kompakt */
@media (max-width: 768px) {
    .nav-logo .logo-img {
        height: 120px;
        margin: -35px 0 -55px 0;
    }
    
    .navbar {
        padding: 0.15rem 0;
        height: 45px;
    }
    
    .navbar.scrolled {
        padding: 0.1rem 0;
        height: 40px;
    }
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-link {
    font-weight: 500;
    color: var(--text-dark);
    text-decoration: none;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width var(--transition-medium);
}

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

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

.bar {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    margin: 3px 0;
    transition: var(--transition-fast);
    border-radius: 2px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--background-light) 0%, var(--primary-light) 100%);
    position: relative;
    padding: var(--spacing-xxl) 0;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23F7DC6F' fill-opacity='0.05'%3E%3Ccircle cx='30' cy='30' r='2'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    z-index: 1;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.title-line {
    display: block;
}

.highlight {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
}

.floating-element {
    position: absolute;
    border-radius: var(--border-radius);
    animation: float 6s ease-in-out infinite;
}

.element-1 {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.element-2 {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
    top: 20%;
    right: 20%;
    animation-delay: 1s;
}

.element-3 {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    bottom: 30%;
    left: 20%;
    animation-delay: 2s;
}

.element-4 {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--secondary-color), var(--accent-color));
    bottom: 10%;
    right: 10%;
    animation-delay: 3s;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.hero-illustration {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    position: relative;
    box-shadow: 0 20px 60px var(--shadow-light);
}

.hero-illustration::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 20%;
    width: 60%;
    height: 60%;
    background: var(--background-light);
    border-radius: 50%;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-light);
    font-size: 0.9rem;
}

.scroll-arrow {
    width: 2px;
    height: 30px;
    background: var(--primary-color);
    position: relative;
    animation: scroll 2s infinite;
}

.scroll-arrow::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: -3px;
    width: 8px;
    height: 8px;
    border-right: 2px solid var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
    transform: rotate(45deg);
}

@keyframes scroll {
    0%, 100% { opacity: 0; transform: translateY(-10px); }
    50% { opacity: 1; transform: translateY(0); }
}

/* Services Section */
.services {
    padding: var(--spacing-xxl) 0;
    background: var(--background-dark);
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.service-card {
    background: var(--background-light);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-large);
    box-shadow: 0 10px 30px var(--shadow-dark);
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px var(--shadow-dark);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin-bottom: var(--spacing-lg);
    color: var(--primary-color);
}

.service-svg {
    width: 100%;
    height: 100%;
}

.service-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.service-description {
    color: var(--text-light);
    line-height: 1.6;
}

/* About Section */
.about {
    padding: var(--spacing-xxl) 0;
    background: var(--background-light);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.about-description {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    font-family: var(--font-primary);
}

.stat-label {
    display: block;
    color: var(--text-light);
    font-size: 0.9rem;
    margin-top: var(--spacing-xs);
}

.about-visual {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-illustration {
    width: 100%;
    height: 100%;
    position: relative;
}

.shape {
    position: absolute;
    border-radius: var(--border-radius);
}

.shape-1 {
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    top: 20%;
    left: 10%;
    border-radius: 50%;
}

.shape-2 {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
    top: 10%;
    right: 20%;
    transform: rotate(45deg);
}

.shape-3 {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    bottom: 20%;
    right: 10%;
    border-radius: 30px;
}

/* Portfolio Section */
.portfolio {
    padding: var(--spacing-xxl) 0;
    background: var(--background-dark);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.portfolio-item {
    background: var(--background-light);
    border-radius: var(--border-radius-large);
    overflow: hidden;
    box-shadow: 0 10px 30px var(--shadow-dark);
    transition: all var(--transition-medium);
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 60px var(--shadow-dark);
}

.portfolio-image {
    height: 250px;
    overflow: hidden;
    position: relative;
}

.project-preview {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    position: relative;
}

.project-1::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 20%;
    width: 60%;
    height: 60%;
    background: var(--background-light);
    border-radius: var(--border-radius);
}

.project-2::before {
    content: '';
    position: absolute;
    top: 10%;
    left: 10%;
    width: 80%;
    height: 80%;
    background: var(--accent-color);
    border-radius: 50%;
}

.project-3::before {
    content: '';
    position: absolute;
    top: 15%;
    left: 15%;
    width: 70%;
    height: 70%;
    background: var(--secondary-color);
    border-radius: var(--border-radius-large);
}

.portfolio-content {
    padding: var(--spacing-lg);
}

.portfolio-title {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.portfolio-description {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.portfolio-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.portfolio-link:hover {
    color: var(--primary-dark);
}

/* Contact Section */
.contact {
    padding: var(--spacing-xxl) 0;
    background: var(--background-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
}

.contact-description {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.contact-label {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.contact-value {
    color: var(--text-light);
    font-size: 1.1rem;
}

.contact-form-container {
    background: var(--background-dark);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-large);
    box-shadow: 0 10px 30px var(--shadow-dark);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: var(--font-secondary);
    font-size: 1rem;
    transition: all var(--transition-fast);
    background: var(--background-light);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--shadow-light);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background: var(--accent-color);
    color: var(--text-white);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xxl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.footer-brand p {
    color: #BDC3C7;
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
}

.footer-section h4 {
    color: var(--text-white);
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

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

.footer-section li {
    margin-bottom: var(--spacing-xs);
}

.footer-section a {
    color: #BDC3C7;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    color: #BDC3C7;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.social-link:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid #34495E;
    padding-top: var(--spacing-lg);
    text-align: center;
    color: #BDC3C7;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--background-light);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px var(--shadow-dark);
        padding: var(--spacing-lg) 0;
    }

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

    .hamburger {
        display: flex;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-lg);
    }

    .hero-visual {
        height: 300px;
    }

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

    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .services-grid {
        grid-template-columns: 1fr;
        max-width: 100%;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
}

@media (max-width: 900px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
}

@media (max-width: 600px) {
    .services-grid {
        grid-template-columns: 1fr !important;
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .hero {
        padding: var(--spacing-xl) 0;
    }

    .services, .about, .portfolio, .contact {
        padding: var(--spacing-xl) 0;
    }

    .service-card {
        padding: var(--spacing-lg);
    }

    .contact-form-container {
        padding: var(--spacing-lg);
    }
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Loading Animation */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--background-light);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loading.hidden {
    opacity: 0;
    pointer-events: none;
}

.loader {
    width: 50px;
    height: 50px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}