/* AGD Mezunlar - Default Theme */
:root {
    /* Primary Colors */
    --primary-color: #2c5aa0;
    --primary-hover: #1e3f73;
    --secondary-color: #e74c3c;
    --secondary-hover: #c0392b;
    
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-accent: #e8f4f8;
    
    /* Text Colors */
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --text-muted: #95a5a6;
    --text-white: #ffffff;
    
    /* Border Colors */
    --border-color: #dee2e6;
    --border-light: #e9ecef;
    
    /* Shadow */
    --shadow-light: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-medium: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-heavy: 0 8px 25px rgba(0,0,0,0.15);
    
    /* Spacing */
    --container-max-width: 1200px;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.header {
    background: var(--bg-primary);
    box-shadow: var(--shadow-light);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 15px;
}

.nav-brand .logo {
    width: 45px;
    height: 45px;
    object-fit: contain;
    padding: 5px;
    border-radius: 8px;
}

.nav-brand h1 {
    color: var(--primary-color);
    font-size: 1.5rem;
    font-weight: 700;
}

.nav {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 25px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    background-color: var(--primary-color);
    color: var(--text-white);
}

.theme-selector select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 14px;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.mobile-menu-toggle:hover {
    background: var(--bg-secondary);
    color: var(--primary-color);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: var(--text-white);
    padding: 80px 0;
    text-align: center;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border: none;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
}

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

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

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

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

/* Features Section */
.features {
    padding: 80px 0;
    background-color: var(--bg-secondary);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--bg-primary);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--shadow-medium);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-heavy);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Content Section */
.content-section {
    padding: 2rem 0;
}

.about-content {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    gap: 2rem;
}

.about-card {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    border-left: 4px solid var(--primary-color);
}

.about-card h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.about-card p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 1rem;
}

.message-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-heavy);
    color: var(--text-white);
}

.message-card h3 {
    color: var(--text-white);
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.message-card blockquote {
    font-style: italic;
    font-size: 1.1rem;
    line-height: 1.8;
    margin: 0;
}

.message-card blockquote footer {
    margin-top: 1.5rem;
    text-align: right;
    font-style: normal;
}

.message-card blockquote footer strong {
    font-size: 1.1rem;
    display: block;
    margin-bottom: 0.25rem;
}

.message-card blockquote footer em {
    opacity: 0.9;
}

/* Stats Section */
.stats-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: var(--text-white);
}

.stats-section .section-title {
    color: var(--text-white);
    margin-bottom: 4rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 0.5rem;
    display: block;
}

.stat-label {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 0.5rem;
}

.stat-desc {
    font-size: 0.9rem;
    opacity: 0.8;
    color: var(--text-white);
}

/* Process Section */
.process-section {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.process-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    margin-top: 3rem;
}

.step-item {
    text-align: center;
    max-width: 200px;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--primary-color);
    color: var(--text-white);
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    box-shadow: var(--shadow-medium);
}

.step-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--bg-primary);
    color: var(--primary-color);
    font-size: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    box-shadow: var(--shadow-medium);
    border: 3px solid var(--primary-color);
}

.step-content h4 {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

.step-arrow {
    color: var(--primary-color);
    font-size: 1.5rem;
    opacity: 0.6;
}

/* Testimonials Section */
.testimonials-section {
    padding: 80px 0;
    background: var(--bg-primary);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.testimonial-card {
    background: var(--bg-primary);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    border: 1px solid var(--border-light);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-heavy);
}

.testimonial-content {
    margin-bottom: 1.5rem;
}

.testimonial-content p {
    font-style: italic;
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1rem;
    position: relative;
}

.testimonial-content p::before {
    content: '"';
    font-size: 3rem;
    color: var(--primary-color);
    position: absolute;
    top: -1rem;
    left: -0.5rem;
    opacity: 0.3;
}

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

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
}

.author-info strong {
    display: block;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.author-info span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    color: var(--text-white);
    text-align: center;
}

.cta-content h3 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    color: var(--text-white);
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.cta-buttons .btn {
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 600;
}

.cta-buttons .btn-primary {
    background: var(--text-white);
    color: var(--primary-color);
}

.cta-buttons .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
}

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

.cta-buttons .btn-secondary:hover {
    background: var(--text-white);
    color: var(--primary-color);
    transform: translateY(-3px);
}

/* Footer */
.footer {
    background-color: var(--text-primary);
    color: var(--text-white);
    padding: 40px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 20px;
}

.footer-section h4 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 20px;
    text-align: center;
    color: var(--text-muted);
}

.developer-credit {
    font-size: 0.8rem;
    margin-top: 0.5rem;
    opacity: 0.8;
    font-style: italic;
}

.developer-credit strong {
    color: var(--primary-color);
    font-weight: 600;
}

/* Form Styles */
.main-content {
    padding: 40px 0;
    min-height: calc(100vh - 200px);
}

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

.page-header h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
}

.registration-form {
    background: var(--bg-primary);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
}

.form-section {
    margin-bottom: 2rem;
}

.form-section h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-light);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 1rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(44, 90, 160, 0.1);
}

.form-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-light);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header .container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
    
    .nav {
        position: relative;
    }
    
    .nav-list {
        position: absolute;
        top: 100%;
        right: 0;
        background: var(--bg-primary);
        border: 1px solid var(--border-color);
        border-radius: var(--border-radius);
        box-shadow: var(--shadow-medium);
        flex-direction: column;
        min-width: 200px;
        padding: 1rem 0;
        transform: translateY(-10px);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 1000;
    }
    
    .nav-list.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .registration-form {
        padding: 20px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
    
    .process-steps {
        flex-direction: column;
        gap: 3rem;
    }
    
    .step-arrow {
        transform: rotate(90deg);
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-content h3 {
        font-size: 2rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
}