/* =====================================================
   Akgüller Hafriyat & İnşaat - Modern Kurumsal Tasarım
   Renk Paleti: Koyu Gri/Lacivert + Turuncu Aksanlar
   ===================================================== */

:root {
    --primary-dark: #1a1f36;
    --primary-navy: #2d3561;
    --accent-orange: #ff6b35;
    --accent-red: #e63946;
    --text-dark: #2b2d42;
    --text-light: #8d99ae;
    --bg-light: #f8f9fa;
    --white: #ffffff;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.2);
}

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

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

/* =============== HEADER & NAVIGATION =============== */
.header {
    background: var(--white);
    box-shadow: 0 2px 20px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.2rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary-dark);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--accent-orange);
}

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

.nav-menu a {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    transition: color 0.3s ease;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-orange);
    transition: width 0.3s ease;
}

.nav-menu a:hover {
    color: var(--accent-orange);
}

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

.nav-menu a.active {
    color: var(--accent-orange);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-dark);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* =============== HERO SECTION / SLIDER =============== */
.hero-slider {
    position: relative;
    overflow: hidden;
    height: 600px;
}

.slider-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    background-size: cover;
    background-position: center;
}

.slider-item.active {
    opacity: 1;
    z-index: 1;
}

.slider-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 31, 54, 0.85) 0%, rgba(45, 53, 97, 0.85) 100%);
    z-index: 2;
}

.slider-content {
    position: relative;
    z-index: 3;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: var(--white);
}

.slider-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    max-width: 800px;
    animation: slideInUp 0.8s ease-out;
}

.slider-content p {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    max-width: 600px;
    line-height: 1.7;
    animation: slideInUp 1s ease-out;
}

.slider-content .btn {
    animation: slideInUp 1.2s ease-out;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slider-nav {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 4;
    display: flex;
    gap: 10px;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.slider-dot.active {
    background: var(--accent-orange);
    width: 30px;
    border-radius: 6px;
}

.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 4;
    background: rgba(255, 255, 255, 0.2);
    color: white;
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.slider-arrow:hover {
    background: var(--accent-orange);
}

.slider-arrow-prev {
    left: 20px;
}

.slider-arrow-next {
    right: 20px;
}

/* =============== HERO SECTION (FALLBACK) =============== */
.hero {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-navy) 100%);
    color: var(--white);
    padding: 8rem 2rem;
    height: 450px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background-size: cover;
    background-position: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 31, 54, 0.6);
    z-index: 1;
}

.hero.has-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(26, 31, 54, 0.92) 0%, rgba(45, 53, 97, 0.92) 100%);
    z-index: 1;
}

.hero-content {
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    width: 100%;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero h1 span {
    color: var(--accent-orange);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    max-width: 600px;
    line-height: 1.7;
    margin-left: auto;
    margin-right: auto;
}

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

.btn {
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: inline-block;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--accent-orange);
    color: var(--white);
    transform: translateY(0);
}

.btn-primary:hover {
    background: var(--accent-red);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.3);
}

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

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

/* =============== SECTIONS =============== */
.section {
    padding: 6rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--accent-orange);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 1.5rem auto 0;
}

/* =============== SERVICES GRID =============== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.service-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 5px 30px var(--shadow);
    transition: all 0.4s ease;
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px var(--shadow-hover);
    border-color: var(--accent-orange);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--accent-orange), var(--accent-red));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--white);
}

.service-icon img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.service-card h3 {
    font-size: 1.4rem;
    color: var(--primary-dark);
    margin-bottom: 1rem;
    font-weight: 700;
    text-align: center;
}

.service-card p {
    color: var(--text-light);
    line-height: 1.7;
    text-align: center;
}

/* =============== ABOUT SECTION =============== */
.about-bg {
    background: var(--bg-light);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    font-size: 2.2rem;
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
    font-weight: 800;
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
    line-height: 1.8;
}

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

.about-features li {
    padding: 0.8rem 0;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-dark);
    font-weight: 500;
}

.about-features li::before {
    content: '✓';
    width: 30px;
    height: 30px;
    background: var(--accent-orange);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: 12px;
    box-shadow: 0 15px 50px var(--shadow);
}

/* =============== REFERENCES GRID =============== */
.references-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.reference-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 30px var(--shadow);
    transition: all 0.4s ease;
}

.reference-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 50px var(--shadow-hover);
}

.reference-image {
    width: 100%;
    height: 250px;
    background: linear-gradient(135deg, var(--primary-navy), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 3rem;
    position: relative;
    overflow: hidden;
}

.reference-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.reference-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: var(--accent-orange);
    color: var(--white);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.reference-content {
    padding: 2rem;
}

.reference-content h3 {
    font-size: 1.4rem;
    color: var(--primary-dark);
    margin-bottom: 0.8rem;
    font-weight: 700;
}

.reference-location {
    color: var(--text-light);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.reference-content p {
    color: var(--text-light);
    line-height: 1.7;
}

/* =============== CONTACT SECTION =============== */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 100%;
    overflow: hidden;
}

.contact-info {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-navy));
    padding: 3rem;
    border-radius: 12px;
    color: var(--white);
    max-width: 100%;
    overflow-wrap: break-word;
    word-wrap: break-word;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    font-weight: 700;
}

.contact-item {
    margin-bottom: 2rem;
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent-orange);
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    opacity: 0.8;
}

.contact-details p {
    font-size: 1.1rem;
    font-weight: 600;
}

.contact-form {
    background: var(--white);
    max-width: 100%;
    overflow: hidden;
}

.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    max-width: 100%;
    padding: 1rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-orange);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.submit-btn {
    width: 100%;
    padding: 1.2rem;
    background: var(--accent-orange);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background: var(--accent-red);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 107, 53, 0.3);
}

/* =============== FOOTER =============== */
.footer {
    background: var(--primary-dark);
    color: var(--white);
    padding: 3rem 2rem 1.5rem;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.footer-section p {
    opacity: 0.8;
    line-height: 1.8;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--accent-orange);
    transform: translateY(-3px);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    opacity: 1;
    color: var(--accent-orange);
    padding-left: 5px;
}

.footer-bottom {
    max-width: 1400px;
    margin: 2rem auto 0;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    opacity: 0.7;
}

/* =============== RESPONSIVE =============== */
@media (max-width: 968px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px var(--shadow);
        padding: 2rem;
    }

    .nav-menu.active {
        left: 0;
    }

    .menu-toggle {
        display: flex;
    }

    .hero {
        padding: 5rem 2rem;
        height: 400px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .about-content,
    .contact-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-info {
        padding: 2rem;
    }
    
    .contact-item {
        margin-bottom: 1.5rem;
    }
    
    .form-group input,
    .form-group textarea {
        font-size: 16px; /* Prevents zoom on iOS */
    }

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

    .cta-buttons {
        flex-direction: column;
    }

    .btn {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }
    
    .contact-info {
        padding: 1.5rem;
    }
    
    .contact-info h3 {
        font-size: 1.4rem;
    }
    
    .contact-icon {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .contact-details h4 {
        font-size: 0.9rem;
    }
    
    .contact-details p {
        font-size: 0.95rem;
    }
    
    .form-group {
        margin-bottom: 1rem;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 0.8rem;
    }
    
    .submit-btn {
        padding: 1rem;
        font-size: 1rem;
    }

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