/* --- UNDESIGN VARIABLES --- */
:root {
    --bg-color: #f0f0f0;       /* Ham Gri */
    --text-color: #000000;     /* Saf Siyah */
    --accent-color: #ccff00;   /* Neon Asit Yeşili */
    --border-style: 2px solid #000;
    --font-main: 'Courier New', Courier, monospace; /* Monospaced Font */
    --max-width: 1400px;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    line-height: 1.4;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { width: 100%; height: auto; display: block; border: var(--border-style); filter: grayscale(100%); transition: 0.2s; }
img:hover { filter: grayscale(0%); }

/* --- TYPOGRAPHY --- */
h1, h2, h3 {
    text-transform: uppercase;
    font-weight: bold;
    letter-spacing: -1px;
}

h1 { font-size: 4rem; line-height: 0.9; margin-bottom: 20px; }
h2 { font-size: 2.5rem; background: var(--text-color); color: var(--bg-color); display: inline-block; padding: 5px 15px; }

/* --- MARQUEE (Kayan Yazı) --- */
.marquee {
    background: var(--accent-color);
    border-bottom: var(--border-style);
    overflow: hidden;
    white-space: nowrap;
    padding: 10px 0;
    font-weight: bold;
    text-transform: uppercase;
}
.marquee-content {
    display: inline-block;
    animation: scroll 10s linear infinite;
}
@keyframes scroll {
    0% { transform: translateX(100%); }
    100% { transform: translateX(-100%); }
}

/* --- HEADER --- */
header {
    border-bottom: var(--border-style);
    padding: 0;
    background: var(--bg-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.logo {
    font-size: 2rem;
    font-weight: 900;
    text-transform: uppercase;
    border: var(--border-style);
    padding: 5px 15px;
    background: #fff;
    box-shadow: 5px 5px 0px #000;
}

.nav-links { display: flex; gap: 0; border-left: var(--border-style); }
.nav-links li { border-right: var(--border-style); }
.nav-links a {
    display: block;
    padding: 10px 20px;
    font-weight: bold;
    text-transform: uppercase;
    transition: 0.2s;
}
.nav-links a:hover, .nav-links a.active {
    background: var(--accent-color);
    color: #000;
}

/* Mobile Menu */
.burger { display: none; cursor: pointer; border: var(--border-style); padding: 10px; background: #fff; }

/* --- LAYOUTS --- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 40px 20px; flex: 1; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: var(--border-style); }
.grid-2 > div { padding: 40px; border-right: var(--border-style); }
.grid-2 > div:last-child { border-right: none; }

.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; }

/* --- CARDS (Raw Style) --- */
.raw-card {
    border: var(--border-style);
    background: #fff;
    padding: 15px;
    position: relative;
}
.raw-card:hover { background: var(--accent-color); }
.raw-card h3 { border-bottom: var(--border-style); margin-bottom: 10px; padding-bottom: 5px; }

/* --- BUTTONS --- */
.btn {
    display: inline-block;
    padding: 15px 40px;
    background: #000;
    color: #fff;
    font-family: var(--font-main);
    font-weight: bold;
    text-transform: uppercase;
    border: none;
    cursor: pointer;
    margin-top: 20px;
}
.btn:hover {
    background: var(--accent-color);
    color: #000;
    box-shadow: 5px 5px 0px #000;
}

/* --- FORMS --- */
.form-group { margin-bottom: 0; border: var(--border-style); border-bottom: none; }
.form-group:last-of-type { border-bottom: var(--border-style); }
label { display: block; padding: 10px; background: #e0e0e0; border-bottom: var(--border-style); font-weight: bold; text-transform: uppercase; }
input, textarea, select {
    width: 100%;
    padding: 15px;
    border: none;
    background: #fff;
    font-family: var(--font-main);
    font-size: 1rem;
    outline: none;
}
input:focus, textarea:focus { background: #fff9c4; }

/* --- FOOTER --- */
footer {
    border-top: var(--border-style);
    background: #000;
    color: #fff;
    padding: 40px 20px;
    margin-top: auto;
}
.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 20px;
}
.tr-phone {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-color);
    border: 1px dashed var(--accent-color);
    padding: 10px;
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute; top: 100%; left: 0; width: 100%;
        background: var(--bg-color);
        border-bottom: var(--border-style);
        flex-direction: column;
    }
    .nav-links li { border-right: none; border-bottom: var(--border-style); text-align: center; }
    .nav-links.active { display: flex; }
    .burger { display: block; }
    
    h1 { font-size: 2.5rem; }
    .grid-2 { grid-template-columns: 1fr; border: none; }
    .grid-2 > div { border: var(--border-style); border-bottom: none; }
    .grid-2 > div:last-child { border-bottom: var(--border-style); border-right: var(--border-style); }
}