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

:root {
    --primary-color: #2c3e50;
    --accent-color: #3498db;
    --accent-hover: #2980b9;
    --text-color: #333;
    --light-bg: #f8f9fa;
    --border-color: #e1e8ed;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
}

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

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 2rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.9rem;
}

.header-profile-photo {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center 20%;
    border: 3px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    flex-shrink: 0;
}

.logo-text h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.logo-text .tagline {
    font-size: 0.9rem;
    opacity: 0.9;
}

.nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
}

.nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s;
}

.nav a:hover {
    opacity: 0.8;
}

/* Search Section */
.search-section {
    background-color: var(--light-bg);
    padding: 3rem 2rem;
}

.search-container {
    max-width: 1200px;
    margin: 0 auto;
}

.search-section h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-color);
    font-size: 1.8rem;
}

.search-box {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.search-box input {
    flex: 1;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.search-box input:focus {
    outline: none;
    border-color: var(--accent-color);
}

.search-box button {
    padding: 1rem 2rem;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s;
}

.search-box button:hover {
    background-color: var(--accent-hover);
}

/* Filter Tags */
.filter-tags {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.7rem 1.5rem;
    border: 2px solid var(--border-color);
    background-color: white;
    color: var(--text-color);
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s;
    font-weight: 500;
}

.filter-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.filter-btn.active {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

/* Projects Section */
.projects-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
    min-height: 60vh;
}

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

/* Project Card */
.project-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: all 0.3s;
    border: 1px solid var(--border-color);
}

.project-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.project-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background-color: var(--light-bg);
}

.project-card-content {
    padding: 1.5rem;
}

.project-badge {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    background-color: var(--accent-color);
    color: white;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    text-transform: uppercase;
}

.project-badge.konut {
    background-color: var(--success-color);
}

.project-badge.ticari {
    background-color: var(--warning-color);
}

.project-badge.karma {
    background-color: var(--danger-color);
}

.project-card h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    font-size: 1.3rem;
}

.project-location {
    color: #7f8c8d;
    font-size: 0.9rem;
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.project-description {
    color: #555;
    font-size: 0.95rem;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.project-meta {
    display: flex;
    justify-content: space-between;
    padding: 1rem 0;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.project-meta span {
    color: #7f8c8d;
}

.project-card-btn {
    width: 100%;
    padding: 0.8rem;
    background-color: var(--accent-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: background-color 0.3s;
    margin-top: 1rem;
}

.project-card-btn:hover {
    background-color: var(--accent-hover);
}

/* About Section */
.about-section {
    background-color: var(--light-bg);
    padding: 4rem 2rem;
    position: relative;
}

.about-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.about-text p {
    color: #555;
    margin-bottom: 1.5rem;
    line-height: 1.8;
    font-size: 1rem;
}

.achievements {
    list-style: none;
    margin-top: 2rem;
}

.achievements li {
    padding: 0.7rem 0;
    color: var(--primary-color);
    font-weight: 500;
    font-size: 1.1rem;
}

/* Profile Image */
.profile-image-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: flex-end;
}

.profile-image {
    width: 100%;
    max-width: 350px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    object-fit: cover;
    aspect-ratio: 3 / 4;
}

/* Contact Section */
.contact-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.contact-section h2 {
    text-align: center;
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 3rem;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.contact-card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 2px solid var(--border-color);
    transition: all 0.3s;
}

.contact-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-5px);
}

.contact-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background-color: var(--light-bg);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
}

.contact-icon svg {
    width: 30px;
    height: 30px;
}

.contact-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.contact-card p {
    color: #7f8c8d;
    margin-bottom: 1.5rem;
}

.contact-btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background-color: var(--accent-color);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    transition: background-color 0.3s;
    font-weight: 600;
    border: none;
    cursor: pointer;
}

.contact-btn:hover {
    background-color: var(--accent-hover);
}

.request-form-wrapper {
    margin-top: 2.5rem;
    padding: 2rem;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    background-color: var(--light-bg);
}

.request-form-wrapper h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.request-form-wrapper > p {
    color: #5f6b75;
    margin-bottom: 1.5rem;
}

.request-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.request-form label {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: -0.4rem;
}

.request-form input {
    width: 100%;
    padding: 0.85rem 1rem;
    border: 1px solid #cfd7df;
    border-radius: 8px;
    font-size: 1rem;
    background-color: white;
}

.request-form input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.12);
}

.request-form label[for="projectName"],
.request-form #projectName,
.form-submit-btn {
    grid-column: 1 / -1;
}

.form-submit-btn {
    margin-top: 0.5rem;
    width: 100%;
}

.request-form-status {
    grid-column: 1 / -1;
    margin-top: 0.2rem;
    font-size: 0.95rem;
    color: #5f6b75;
    min-height: 1.4rem;
}

.request-form-status.success {
    color: #1f8f4a;
}

.request-form-status.error {
    color: #c0392b;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 12px;
    width: 90%;
    max-width: 800px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    max-height: 80vh;
    overflow-y: auto;
}

.close {
    color: #aaa;
    float: right;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s;
}

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

.project-detail {
    animation: slideIn 0.3s ease;
}

.project-detail-image {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.project-detail h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 2rem;
}

.project-detail-location {
    color: #7f8c8d;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.project-detail-description {
    color: #555;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.project-details-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
    padding: 2rem;
    background-color: var(--light-bg);
    border-radius: 8px;
}

.detail-item h4 {
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    text-transform: uppercase;
}

.detail-item p {
    color: var(--primary-color);
    font-weight: 600;
    font-size: 1.2rem;
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: white;
    text-align: center;
    padding: 2rem;
    margin-top: 3rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav ul {
        gap: 1rem;
    }

    .about-container {
        grid-template-columns: 1fr;
    }

    .projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }

    .search-box {
        flex-direction: column;
    }

    .contact-cards {
        grid-template-columns: 1fr;
    }

    .request-form {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .logo {
        gap: 0.6rem;
    }

    .header-profile-photo {
        width: 80px;
        height: 80px;
    }

    .logo-text h1 {
        font-size: 1.5rem;
    }

    .search-section h2 {
        font-size: 1.3rem;
    }

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

    .filter-tags {
        gap: 0.5rem;
    }

    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
}