```css
/* =========================================================
   MERSİN ÇAĞ TEKNİK
   Ana Sayfa Stil Dosyası
   ========================================================= */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background: #ffffff;
    color: #172033;
    line-height: 1.6;
}

img {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

.mct-container {
    width: min(1160px, calc(100% - 40px));
    margin: 0 auto;
}


/* =========================================================
   HEADER
   ========================================================= */

.mct-header {
    width: 100%;
    background: #ffffff;
    border-bottom: 1px solid #e8edf3;
}

.mct-header-inner {
    min-height: 82px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.mct-logo {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
    min-width: 190px;
}

.mct-logo strong {
    color: #0d1b2a;
    font-size: 22px;
    font-weight: 800;
}

.mct-logo span {
    margin-top: 4px;
    color: #1769aa;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.mct-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 28px;
}

.mct-nav a {
    color: #344054;
    font-size: 14px;
    font-weight: 600;
    transition: color 0.2s ease;
}

.mct-nav a:hover {
    color: #1769aa;
}

.mct-phone {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 18px;
    border-radius: 8px;
    background: #1769aa;
    color: #ffffff;
    font-size: 14px;
    font-weight: 700;
    white-space: nowrap;
    transition: background 0.2s ease;
}

.mct-phone:hover {
    background: #0f568d;
}


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

.mct-hero {
    background: #f5f8fc;
    padding: 80px 0;
}

.mct-hero-grid {
    display: grid;
    grid-template-columns: 1.05fr 0.95fr;
    align-items: center;
    gap: 70px;
}

.mct-eyebrow {
    display: inline-block;
    margin-bottom: 15px;
    color: #1769aa;
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 1.4px;
    text-transform: uppercase;
}

.mct-hero h1 {
    max-width: 680px;
    color: #0d1b2a;
    font-size: clamp(38px, 5vw, 62px);
    font-weight: 800;
    line-height: 1.08;
    letter-spacing: -1.5px;
}

.mct-hero h1 span {
    display: block;
    margin-top: 12px;
    color: #1769aa;
}

.mct-hero p {
    max-width: 650px;
    margin-top: 24px;
    color: #526173;
    font-size: 17px;
    line-height: 1.8;
}

.mct-hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
}

.mct-btn {
    display: inline-flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    padding: 0 24px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 700;
}

.mct-btn-primary {
    background: #1769aa;
    color: #ffffff;
}

.mct-btn-primary:hover {
    background: #0f568d;
}

.mct-btn-secondary {
    border: 1px solid #d6dee8;
    background: #ffffff;
    color: #172033;
}

.mct-btn-secondary:hover {
    border-color: #1769aa;
    color: #1769aa;
}

.mct-hero-image {
    overflow: hidden;
    border-radius: 14px;
    background: #e9eef5;
}

.mct-hero-image img {
    width: 100%;
    height: auto;
    object-fit: cover;
}


/* =========================================================
   SECTION GENERAL
   ========================================================= */

.mct-services,
.mct-about,
.mct-location {
    padding: 90px 0;
}

.mct-section-heading {
    max-width: 720px;
    margin: 0 auto 48px;
    text-align: center;
}

.mct-section-heading > span {
    display: block;
    margin-bottom: 10px;
    color: #1769aa;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 1.4px;
    text-transform: uppercase;
}

.mct-section-heading h2 {
    color: #0d1b2a;
    font-size: clamp(30px, 4vw, 42px);
    line-height: 1.2;
}

.mct-section-heading p {
    margin-top: 15px;
    color: #667085;
    font-size: 16px;
}


/* =========================================================
   SERVICES
   ========================================================= */

.mct-services {
    background: #ffffff;
}

.mct-service-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.mct-service-card {
    padding: 32px;
    border: 1px solid #e5eaf0;
    border-radius: 12px;
    background: #ffffff;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.mct-service-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 14px 35px rgba(13, 27, 42, 0.08);
}

.mct-service-card h3 {
    color: #0d1b2a;
    font-size: 21px;
    line-height: 1.3;
}

.mct-service-card p {
    margin-top: 15px;
    color: #667085;
    font-size: 15px;
    line-height: 1.75;
}

.mct-service-card a {
    display: inline-block;
    margin-top: 20px;
    color: #1769aa;
    font-size: 14px;
    font-weight: 800;
}


/* =========================================================
   ABOUT
   ========================================================= */

.mct-about {
    background: #f5f8fc;
}

.mct-about-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    gap: 70px;
}

.mct-about h2 {
    max-width: 650px;
    color: #0d1b2a;
    font-size: clamp(30px, 4vw, 44px);
    line-height: 1.2;
}

.mct-about p {
    max-width: 680px;
    margin-top: 18px;
    color: #5c6878;
    font-size: 16px;
}

.mct-about-box {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 35px;
    border-radius: 14px;
    background: #0d1b2a;
    color: #ffffff;
}

.mct-about-box strong {
    font-size: 24px;
}

.mct-about-box span {
    color: #9eb4ca;
    font-size: 13px;
}

.mct-about-box a {
    width: fit-content;
    color: #ffffff;
    font-size: 15px;
    font-weight: 600;
}

.mct-about-box a:hover {
    color: #79b7e5;
}


/* =========================================================
   CONTACT
   ========================================================= */

.mct-location {
    background: #ffffff;
}

.mct-address {
    max-width: 700px;
    margin: 0 auto;
    padding: 35px;
    border: 1px solid #e5eaf0;
    border-radius: 12px;
    background: #ffffff;
    text-align: center;
    font-style: normal;
}

.mct-address strong {
    display: block;
    margin-top: 18px;
    color: #0d1b2a;
    font-size: 15px;
}

.mct-address strong:first-child {
    margin-top: 0;
}

.mct-address p {
    margin-top: 5px;
    color: #667085;
    font-size: 15px;
}

.mct-address a {
    color: #1769aa;
    font-weight: 700;
}


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

.mct-footer {
    padding: 28px 0;
    background: #0d1b2a;
}

.mct-footer p {
    color: #aebaca;
    text-align: center;
    font-size: 13px;
}


/* =========================================================
   TABLET
   ========================================================= */

@media (max-width: 900px) {

    .mct-header-inner {
        flex-wrap: wrap;
        padding: 18px 0;
    }

    .mct-nav {
        order: 3;
        width: 100%;
        gap: 18px;
        overflow-x: auto;
        justify-content: flex-start;
        padding-top: 5px;
    }

    .mct-hero {
        padding: 60px 0;
    }

    .mct-hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .mct-hero-content {
        text-align: center;
    }

    .mct-hero p {
        margin-left: auto;
        margin-right: auto;
    }

    .mct-hero-buttons {
        justify-content: center;
    }

    .mct-service-grid {
        grid-template-columns: 1fr;
    }

    .mct-about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}


/* =========================================================
   MOBILE
   ========================================================= */

@media (max-width: 600px) {

    .mct-container {
        width: min(100% - 28px, 1160px);
    }

    .mct-header-inner {
        min-height: auto;
        gap: 15px;
    }

    .mct-logo {
        min-width: 0;
    }

    .mct-logo strong {
        font-size: 19px;
    }

    .mct-phone {
        padding: 10px 13px;
        font-size: 12px;
    }

    .mct-nav {
        gap: 16px;
        padding-bottom: 2px;
    }

    .mct-nav a {
        font-size: 13px;
        white-space: nowrap;
    }

    .mct-hero {
        padding: 48px 0;
    }

    .mct-hero h1 {
        font-size: 37px;
        letter-spacing: -0.8px;
    }

    .mct-hero p {
        font-size: 15px;
        line-height: 1.7;
    }

    .mct-hero-buttons {
        flex-direction: column;
    }

    .mct-btn {
        width: 100%;
    }

    .mct-services,
    .mct-about,
    .mct-location {
        padding: 65px 0;
    }

    .mct-section-heading {
        margin-bottom: 32px;
    }

    .mct-section-heading h2 {
        font-size: 30px;
    }

    .mct-section-heading p {
        font-size: 14px;
    }

    .mct-service-card {
        padding: 25px;
    }

    .mct-service-card h3 {
        font-size: 19px;
    }

    .mct-about h2 {
        font-size: 31px;
    }

    .mct-about p {
        font-size: 15px;
    }

    .mct-about-box {
        padding: 28px;
    }

    .mct-address {
        padding: 27px 20px;
    }
}
```