/* 
* Coding Campus - Main Stylesheet
* Modern and responsive design for coding-campus.de
*/

/* ===== Base Styles ===== */
:root {
    --primary-color: #3498db;
    --secondary-color: #2ecc71;
    --accent-color: #f39c12;
    --dark-color: #343a40;
    --light-color: #f8f9fa;
    --gray-color: #6c757d;
    --white-color: #ffffff;
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--white-color);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 2rem;
    position: relative;
    padding-bottom: 1rem;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: var(--transition);
}

a:hover {
    color: var(--secondary-color);
}

img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 80px 0;
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 4px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    font-family: 'Montserrat', sans-serif;
}

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

.btn-primary:hover {
    background-color: transparent;
    color: var(--primary-color);
}

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

.btn-secondary:hover {
    background-color: transparent;
    color: var(--secondary-color);
}

/* ===== Header ===== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--white-color);
    box-shadow: var(--shadow);
    z-index: 1000;
    padding: 15px 0;
    transition: var(--transition);
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark-color);
}

.logo a span {
    color: var(--primary-color);
}

.main-nav ul {
    display: flex;
    list-style: none;
}

.main-nav ul li {
    margin-left: 30px;
}

.main-nav ul li a {
    color: var(--dark-color);
    font-weight: 600;
    position: relative;
}

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

.main-nav ul li a:hover::after,
.main-nav ul li a.active::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--dark-color);
    margin: 5px 0;
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero-section {
    height: 100vh;
    background: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), url('https://images.unsplash.com/photo-1517245386807-bb43f82c33c4?ixlib=rb-4.0.3&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=1170&q=80');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--white-color);
}

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

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

/* ===== About Section ===== */
.about-section {
    background-color: var(--light-color);
}

.about-content {
    display: flex;
    align-items: center;
    gap: 40px;
}

.about-text {
    flex: 1;
}

.about-image {
    flex: 1;
}

/* ===== Seminars Section ===== */
.seminars-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.seminar-card {
    background-color: var(--white-color);
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 30px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.seminar-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.seminar-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
    text-align: center;
}

.seminar-card h3 {
    margin-bottom: 10px;
    color: var(--dark-color);
}

.seminar-subtitle {
    color: var(--gray-color);
    font-style: italic;
    margin-bottom: 20px;
}

.seminar-details {
    flex-grow: 1;
    margin-bottom: 20px;
}

.seminar-card .btn {
    align-self: flex-start;
}

/* ===== Freelancers Section ===== */
.freelancers-section {
    background-color: var(--light-color);
}

.freelancers-content {
    display: flex;
    align-items: center;
    gap: 40px;
}

.freelancers-text {
    flex: 1;
}

.freelancers-image {
    flex: 1;
}

.benefits-list {
    list-style: none;
    margin: 20px 0;
}

.benefits-list li {
    margin-bottom: 10px;
    display: flex;
    align-items: flex-start;
}

.benefits-list li i {
    color: var(--secondary-color);
    margin-right: 10px;
    font-size: 1.2rem;
}

/* ===== Inhouse Section ===== */
.inhouse-content {
    display: flex;
    align-items: center;
    gap: 40px;
}

.inhouse-text {
    flex: 1;
}

.inhouse-image {
    flex: 1;
}

/* ===== Testimonials Section ===== */
.testimonials-section {
    background-color: var(--light-color);
    text-align: center;
}

.testimonials-slider {
    max-width: 800px;
    margin: 0 auto;
}

.testimonial {
    background-color: var(--white-color);
    border-radius: 8px;
    box-shadow: var(--shadow);
    padding: 30px;
    margin: 20px;
}

.testimonial-content {
    font-style: italic;
    margin-bottom: 20px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
}

.author-info {
    text-align: center;
}

.author-info h4 {
    margin-bottom: 5px;
}

.author-info p {
    color: var(--gray-color);
    margin-bottom: 0;
}

/* ===== Order Form Section ===== */
.order-form-section {
    background-color: var(--light-color);
    padding: 80px 0;
}

.order-form-section h2 {
    text-align: center;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.section-description {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    color: var(--gray-color);
}

.order-form {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--white-color);
    padding: 40px;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group.half {
    flex: 1;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark-color);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    font-size: 16px;
    transition: border-color 0.3s;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-group.checkbox {
    display: flex;
    align-items: flex-start;
}

.form-group.checkbox input {
    margin-top: 5px;
    margin-right: 10px;
    width: auto;
}

.form-group.checkbox label {
    margin-bottom: 0;
    font-weight: normal;
}

.submit-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 14px 24px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
}

.submit-button:hover {
    background-color: #2980b9;
}

.form-note {
    margin-top: 15px;
    font-size: 14px;
    color: var(--gray-color);
}

/* ===== Footer ===== */
.site-footer {
    background-color: var(--dark-color);
    color: var(--light-color);
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: 40px;
}

.footer-section {
    flex: 1;
    min-width: 300px;
    margin-bottom: 30px;
    padding: 0 20px;
}

.footer-section h3 {
    color: var(--white-color);
    margin-bottom: 20px;
    font-size: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 50px;
    height: 2px;
    background-color: var(--primary-color);
}

.contact-info p {
    margin-bottom: 10px;
    color: #ced4da;
}

.contact-info i {
    margin-right: 10px;
    color: var(--primary-color);
}

.footer-section.links ul {
    list-style: none;
    padding-left: 0;
}

.footer-section.links ul li {
    margin-bottom: 10px;
}

.footer-section.links ul li a {
    color: #ced4da;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section.links ul li a:hover {
    color: var(--primary-color);
    padding-left: 5px;
}

.contact-input {
    background-color: #495057;
    color: var(--white-color);
    border: none;
    padding: 12px 15px;
    width: 100%;
    margin-bottom: 10px;
    border-radius: 4px;
}

.contact-input::placeholder {
    color: #adb5bd;
}

.contact-input:focus {
    outline: none;
    background-color: #545b62;
}

.contact-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

.contact-btn:hover {
    background-color: #2980b9;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #495057;
}

.footer-bottom p {
    color: #adb5bd;
    font-size: 14px;
}

/* ===== Modal ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: var(--white-color);
    margin: 5% auto;
    padding: 40px;
    border-radius: 8px;
    width: 80%;
    max-width: 800px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
}

.close-modal {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
    color: var(--gray-color);
    cursor: pointer;
}

.close-modal:hover {
    color: var(--dark-color);
}

/* ===== Responsive Styles ===== */
@media (max-width: 992px) {
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .about-content,
    .freelancers-content,
    .inhouse-content {
        flex-direction: column;
    }
    
    .about-image,
    .freelancers-image,
    .inhouse-image {
        margin-top: 30px;
        order: 2;
    }
    
    .inhouse-image {
        order: -1;
        margin-top: 0;
        margin-bottom: 30px;
    }
}

@media (max-width: 768px) {
    .main-nav {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-content h1 {
        font-size: 2.2rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .seminars-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .order-form {
        padding: 30px 20px;
    }
    
    .footer-content {
        flex-direction: column;
    }
    
    .footer-section {
        margin-bottom: 40px;
    }
}

@media (max-width: 576px) {
    section {
        padding: 60px 0;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .btn {
        padding: 10px 20px;
    }
    
    .hero-section {
        height: 80vh;
    }
    
    .modal-content {
        width: 95%;
        padding: 20px;
    }
}