/* REK DIJITAL - Ana Tasarim Sistemi */

:root {
    --bg: #071426;
    --bg-soft: #0e213b;
    --primary: #168dff;
    --accent: #27c5ff;
    --text: #ffffff;
    --muted: #b7c8dd;
    --border: #203752;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

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

img {
    max-width: 100%;
    height: auto;
}

.container {
    width: min(1160px, 90%);
    margin: 0 auto;
}

/* Ust Menu */

.site-header {
    background: rgba(7, 20, 38, 0.96);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    min-height: 94px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
}

.site-logo {
    width: 180px;
    display: block;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 25px;
    flex-wrap: wrap;
}

.site-nav a {
    font-size: 15px;
    font-weight: 600;
    transition: color 0.2s;
}

.site-nav a:hover,
.site-nav a:focus-visible {
    color: var(--accent);
}

/* Ana Sayfa Karsilama Alani */

.hero {
    padding: 110px 0 120px;
    background:
        radial-gradient(
            circle at 80% 25%,
            rgba(22, 141, 255, 0.2),
            transparent 45%
        ),
        var(--bg);
}

.hero-content {
    max-width: 790px;
}

.hero-label {
    color: var(--accent);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero h1 {
    font-size: clamp(36px, 5vw, 66px);
    line-height: 1.12;
    margin: 18px 0 24px;
    letter-spacing: -1.5px;
}

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

.hero p {
    max-width: 650px;
    color: var(--muted);
    font-size: 19px;
}

.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 15px 28px;
    border-radius: 9px;
    font-weight: 700;
    transition: transform 0.2s, background 0.2s;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}

.btn-primary:hover {
    background: #0875df;
    transform: translateY(-2px);
}

/* Genel Bolumler */

.section {
    padding: 90px 0;
}

.section-alt {
    background: var(--bg-soft);
}

.section-title {
    font-size: clamp(28px, 4vw, 42px);
    line-height: 1.2;
    margin: 0 0 18px;
}

.section-description {
    color: var(--muted);
    max-width: 700px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    margin-top: 40px;
}

.service-card {
    padding: 30px;
    background: #102640;
    border: 1px solid var(--border);
    border-radius: 16px;
}

.service-card h3 {
    margin-top: 0;
    font-size: 22px;
}

.service-card p {
    color: var(--muted);
}

/* Alt Bilgi */

.site-footer {
    border-top: 1px solid var(--border);
    padding: 35px 0;
    color: var(--muted);
    text-align: center;
}

/* Mobil Uyum */

@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        padding: 20px 0;
    }

    .site-logo {
        width: 155px;
    }

    .site-nav {
        justify-content: center;
        gap: 12px 18px;
    }

    .site-nav a {
        font-size: 14px;
    }

    .hero {
        padding: 75px 0 85px;
    }

    .hero p {
        font-size: 17px;
    }

    .section {
        padding: 65px 0;
    }

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