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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fafafa;
}

/* Container */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px 0;
    text-align: center;
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.2);
}

.logo {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}

.header-subtitle {
    font-size: 1.1rem;
    opacity: 0.95;
    font-weight: 300;
}

/* Main Content */
.main {
    padding: 60px 0;
}

.content {
    background: white;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    margin-bottom: 40px;
}

/* Typography */
.main-title {
    color: #667eea;
    font-size: 2.2rem;
    margin-bottom: 30px;
    text-align: center;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.update-info {
    background: #f8f9ff;
    border: 1px solid #e1e7ff;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 30px;
    text-align: center;
}

.update-info p {
    margin: 0;
    color: #667eea;
    font-weight: 500;
}

.intro {
    background: #f8f9ff;
    border-left: 4px solid #667eea;
    padding: 20px;
    margin-bottom: 40px;
    border-radius: 0 8px 8px 0;
}

.intro p {
    margin-bottom: 15px;
    font-size: 1.05rem;
    color: #444;
}

.intro p:last-child {
    margin-bottom: 0;
}

/* Sections */
.section {
    margin-bottom: 40px;
    padding-bottom: 30px;
    border-bottom: 1px solid #e8e8e8;
}

.section:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

h2 {
    color: #667eea;
    font-size: 1.5rem;
    margin-bottom: 20px;
    font-weight: 600;
    letter-spacing: -0.3px;
}

h3 {
    color: #444;
    font-size: 1.2rem;
    margin: 25px 0 15px 0;
    font-weight: 600;
}

p {
    margin-bottom: 16px;
    font-size: 1rem;
    line-height: 1.7;
    color: #555;
}

/* Lists */
ul {
    margin: 20px 0;
    padding-left: 0;
}

li {
    margin-bottom: 12px;
    padding-left: 25px;
    position: relative;
    line-height: 1.6;
    color: #555;
}

li::before {
    content: '•';
    color: #667eea;
    font-weight: bold;
    position: absolute;
    left: 0;
    font-size: 1.2rem;
}

li strong {
    color: #333;
}

/* Contact Info */
.contact-info {
    background: #f8f9ff;
    border-radius: 8px;
    padding: 20px;
    margin-top: 20px;
}

.contact-info li::before {
    content: '→';
    color: #667eea;
    font-weight: bold;
}

/* Links */
a {
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

a:hover {
    color: #5a6fd8;
    text-decoration: underline;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 30px 0;
    margin-top: 60px;
}

.footer p {
    margin: 0;
    opacity: 0.8;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .header {
        padding: 30px 0;
    }
    
    .logo {
        font-size: 2rem;
    }
    
    .header-subtitle {
        font-size: 1rem;
    }
    
    .main {
        padding: 30px 0;
    }
    
    .content {
        padding: 25px 20px;
        border-radius: 8px;
    }
    
    .main-title {
        font-size: 1.8rem;
        margin-bottom: 25px;
    }
    
    h2 {
        font-size: 1.3rem;
        margin-bottom: 15px;
    }
    
    h3 {
        font-size: 1.1rem;
        margin: 20px 0 10px 0;
    }
    
    p, li {
        font-size: 0.95rem;
    }
    
    .intro {
        padding: 15px;
        margin-bottom: 30px;
    }
    
    .update-info {
        padding: 12px;
        margin-bottom: 25px;
    }
    
    .section {
        margin-bottom: 30px;
        padding-bottom: 25px;
    }
    
    .contact-info {
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 12px;
    }
    
    .content {
        padding: 20px 15px;
    }
    
    .main-title {
        font-size: 1.6rem;
        line-height: 1.3;
    }
    
    .logo {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.2rem;
    }
    
    li {
        padding-left: 20px;
        margin-bottom: 10px;
    }
    
    .intro p {
        font-size: 0.95rem;
    }
    
    .footer {
        margin-top: 40px;
        padding: 25px 0;
    }
}

/* Print Styles */
@media print {
    .header {
        background: white !important;
        color: #333 !important;
        box-shadow: none !important;
    }
    
    .logo {
        color: #667eea !important;
    }
    
    body {
        background: white !important;
    }
    
    .content {
        box-shadow: none !important;
        border: 1px solid #ddd;
    }
    
    .footer {
        background: white !important;
        color: #333 !important;
        border-top: 1px solid #ddd;
    }
}