/* Reset ve temel stiller */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #e0e0e0;
    background-color: #0a0a0a;
    overflow-x: hidden;
}

/* Navigation */
.navbar {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    padding: 1rem 0;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.nav-logo-link {
    color: #ffffff;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-link {
    color: #b0b0b0;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover {
    color: #ffffff;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #3b82f6, #1d4ed8);
    transition: width 0.3s ease;
}

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    color: white;
    text-align: center;
    padding: 140px 2rem 100px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 20%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 70% 80%, rgba(29, 78, 216, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #ffffff 0%, #b0b0b0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
}

.hero-content p {
    font-size: 1.4rem;
    margin-bottom: 3rem;
    color: #94a3b8;
    font-weight: 400;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    padding: 14px 32px;
    border: none;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    display: inline-block;
    text-align: center;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
    background: transparent;
    color: #e0e0e0;
    border: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* Sections */
.section {
    padding: 100px 2rem;
    max-width: 1200px;
    margin: 0 auto;
    background: #0f0f0f;
}

.section h2 {
    text-align: center;
    font-size: 2.8rem;
    margin-bottom: 4rem;
    color: #ffffff;
    font-weight: 700;
    letter-spacing: -0.5px;
}

/* Cards */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.card {
    background: linear-gradient(145deg, #1a1a1a 0%, #0f0f0f 100%);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: all 0.4s ease;
    border: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, #3b82f6, transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border-color: rgba(59, 130, 246, 0.3);
}

.card:hover::before {
    opacity: 1;
}

.card h3 {
    color: #ffffff;
    margin-bottom: 1rem;
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.card p {
    color: #94a3b8;
    line-height: 1.7;
    font-size: 0.95rem;
}

/* Technologies */
.technologies {
    margin-top: 1.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tech-tag {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    color: #e0e0e0;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.tech-tag:hover {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    transform: translateY(-1px);
}

/* Contact Section */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: start;
}

.contact-info {
    background: linear-gradient(145deg, #1a1a1a 0%, #0f0f0f 100%);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.contact-item {
    margin-bottom: 2rem;
}

.contact-item h3 {
    color: #3b82f6;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.contact-item p {
    color: #94a3b8;
    font-size: 0.95rem;
}

/* Contact Form */
.contact-form-container {
    background: linear-gradient(145deg, #1a1a1a 0%, #0f0f0f 100%);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-control {
    padding: 14px 18px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.02);
    color: #e0e0e0;
    backdrop-filter: blur(10px);
}

.form-control:focus {
    outline: none;
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    background: rgba(255, 255, 255, 0.05);
}

.form-control::placeholder {
    color: #64748b;
}

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

/* Error Messages */
.field-error {
    color: #ef4444;
    font-size: 0.85rem;
    margin-top: 0.5rem;
    font-weight: 500;
}

/* Notifications */
.notification {
    position: fixed;
    top: 100px;
    right: 20px;
    padding: 1rem 2rem;
    border-radius: 12px;
    color: white;
    font-weight: 500;
    z-index: 1001;
    animation: slideIn 0.3s ease;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.notification-success {
    background: linear-gradient(135deg, #059669 0%, #047857 100%);
}

.notification-error {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Footer */
.footer {
    background: #0a0a0a;
    color: #64748b;
    text-align: center;
    padding: 3rem 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content p {
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        gap: 1rem;
    }
    
    .hero-content h1 {
        font-size: 2.8rem;
    }
    
    .hero-content p {
        font-size: 1.1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .section {
        padding: 80px 1rem;
    }
    
    .section h2 {
        font-size: 2.2rem;
    }
    
    .cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2.2rem;
    }
    
    .card {
        padding: 2rem;
    }
    
    .nav-container {
        padding: 0 1rem;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
}