/* ===================================================
   ATEL MİMARLIK - GLOBAL AYARLAR
=================================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Segoe UI", Arial, sans-serif;
    background-color: #F5F7FA;
    color: #12263A;
    line-height: 1.7;
}

/* ===================================================
   GENEL YAPILAR
=================================================== */

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

.center {
    text-align: center;
    margin-top: 40px;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    margin-bottom: 50px;
    color: #12263A;
}

/* ===================================================
   BUTONLAR
=================================================== */

.btn-primary {
    display: inline-block;
    padding: 14px 36px;
    background-color: #12263A;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: #0d1d2e;
}

.btn-secondary {
    display: inline-block;
    padding: 14px 36px;
    background-color: #808285;
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background-color: #6b6e71;
}

.btn-outline {
    display: inline-block;
    padding: 12px 32px;
    border: 2px solid #12263A;
    color: #12263A;
    text-decoration: none;
    font-weight: 600;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background-color: #12263A;
    color: #fff;
}

/* ===================================================
   NAVBAR
=================================================== */

.navbar {
    background-color: #12263A;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #fff;
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: 700;
}

.brand img {
    height: 42px;
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-menu a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    position: relative;
}

.nav-menu a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 0%;
    height: 2px;
    background-color: #808285;
    transition: 0.3s;
}

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

.menu-toggle {
    display: none;
    font-size: 26px;
    background: none;
    border: none;
    color: #fff;
    cursor: pointer;
}

/* ===================================================
   HERO ALANI
=================================================== */

.hero {
    height: 90vh;
    background: url("hero.jpg") center / cover no-repeat;
    position: relative;
}

.hero-overlay {
    background: rgba(18, 38, 58, 0.85);
    height: 100%;
}

.hero-content {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    max-width: 700px;
}

.hero h1 {
    font-size: 3rem;
    color: #fff;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.15rem;
    color: #e0e0e0;
    margin-bottom: 35px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

/* ===================================================
   HAKKIMIZDA ÖN İZLEME
=================================================== */

.about-preview {
    padding: 100px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image img {
    width: 100%;
    border-radius: 6px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
}

.about-text h2 {
    font-size: 2rem;
    margin-bottom: 10px;
}

.about-text h3 {
    font-size: 1.1rem;
    color: #808285;
    margin-bottom: 20px;
}

.about-text p {
    margin-bottom: 20px;
}

/* ===================================================
   HİZMETLER
=================================================== */

.services-preview {
    background-color: #ffffff;
    padding: 100px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.service-card {
    background: #F5F7FA;
    padding: 35px 25px;
    text-align: center;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.1);
}

.service-icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.service-card h3 {
    margin-bottom: 10px;
}

/* ===================================================
   CTA
=================================================== */

.cta {
    background: linear-gradient(135deg, #12263A, #1b3a57);
    padding: 90px 0;
    color: #fff;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.4rem;
    margin-bottom: 15px;
}

.cta-content p {
    margin-bottom: 30px;
    color: #d0d0d0;
}

/* ===================================================
   FOOTER
=================================================== */

.footer {
    background-color: #12263A;
    color: #fff;
    padding: 70px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer h3 {
    margin-bottom: 15px;
}

.footer p,
.footer a {
    color: #d1d1d1;
    font-size: 0.95rem;
    text-decoration: none;
}

.footer a:hover {
    color: #fff;
}

.footer ul {
    list-style: none;
}

.footer ul li {
    margin-bottom: 8px;
}

.footer-bottom {
    margin-top: 50px;
    padding: 20px 0;
    text-align: center;
    background-color: #0d1d2e;
    font-size: 0.85rem;
}

/* ===================================================
   RESPONSIVE
=================================================== */

@media (max-width: 992px) {

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

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 768px) {

    .nav-menu {
        position: absolute;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: #12263A;
        flex-direction: column;
        align-items: center;
        display: none;
    }

    .nav-menu.active {
        display: flex;
    }

    .menu-toggle {
        display: block;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

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

    .hero-buttons {
        flex-direction: column;
        align-items: flex-start;
    }
}