:root{
    --bg:#0a1025;
    --surface:#121d42;
    --surface-2:#101a3a;
    --text:#e6f0ff;
    --muted:#9fb0d9;
    --border:#24315f;
    --primary:#2a6cff;
    --primary-hover:#1d4ed8;
    --radius:10px;
    --radius-sm:6px;
}

/* RESET */

*{
    box-sizing:border-box;
}

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

/* HEADER */

header{
    display:flex;
    justify-content:space-between;
    align-items:center;
    background:var(--surface-2);
    padding:20px 40px;
}


nav{
    display:flex;
    flex-wrap:wrap;
}

nav a{
    color:var(--text);
    margin:0 12px;
    text-decoration:none;
    transition:.3s;
}

nav a:hover{
    color:var(--primary);
}

/* HERO */

.hero{
    position:relative;
    min-height:90vh;
    padding:120px 40px;
    text-align:center;
    display:flex;
    align-items:center;
    justify-content:center;
    overflow:hidden;
}

.hero-content{
    position:relative;
    z-index:2;
    max-width:900px;
}

.hero h1{
    font-size:56px;
    margin-bottom:20px;
}

.hero p{
    font-size:20px;
    line-height:1.6;
}

#cyberCanvas{
    position:absolute;
    inset:0;
    width:100%;
    height:100%;
    z-index:0;
}

.hero-buttons{
    margin-top:30px;
}

/* BUTTONS */

.button,
.btn-primary,
.btn-secondary{
    display:inline-block;
    padding:12px 20px;
    border-radius:var(--radius-sm);
    text-decoration:none;
    margin:5px;
    font-size:15px;
}

.button,
.btn-primary{
    background:var(--primary);
    color:white;
    border:none;
}

.button:hover,
.btn-primary:hover{
    background:var(--primary-hover);
}

.btn-secondary{
    border:1px solid var(--text);
    color:var(--text);
    background:transparent;
}

.btn-secondary:hover{
    background:var(--text);
    color:var(--bg);
}

/* SECTION */

.section{
    padding:60px 40px;
}

.section h1,
.section h2{
    margin-bottom:24px;
}

/* GRID */

.grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
    gap:20px;
}

.card{
    background:var(--surface);
    padding:25px;
    border-radius:var(--radius);
}

/* GENERAL IMAGES */

img{
    max-width:100%;
    height:auto;
    border-radius:6px;
}

/* LOGO GRID */

.logo-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(140px,1fr));
    gap:24px;
    justify-items:center;
    align-items:center;
    margin-top:30px;
}

.logo-grid img{
    max-width:180px;
    height:70px;
    object-fit:contain;
    padding:12px 20px;
    background:var(--surface);
    border-radius:8px;
    opacity:.9;
    transition:.3s;
}

.logo-grid img:hover{
    opacity:1;
    transform:translateY(-2px);
}

/* CONTACT LAYOUT */

.contact-container{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:40px;
    margin-top:30px;
}

.contact-form form{
    background:var(--surface);
    padding:25px;
    border-radius:var(--radius);
}

.contact-form p{
    margin-bottom:14px;
}

/* INPUTS (BEYAZ KUTU) */

.contact-form input,
.contact-form textarea{
    width:100%;
    padding:12px 14px;
    border:1px solid #ccc;
    border-radius:var(--radius-sm);
    background:white;
    color:#1a1a1a;
    font-size:15px;
}

.contact-form textarea{
    min-height:140px;
    resize:vertical;
}

/* FOCUS EFFECT */

.contact-form input:focus,
.contact-form textarea:focus{
    border-color:var(--primary);
    box-shadow:0 0 0 3px rgba(42,108,255,0.2);
    outline:none;
}

/* MAP */

.contact-map{
    background:var(--surface);
    border-radius:var(--radius);
    overflow:hidden;
}

.contact-map iframe{
    width:100%;
    height:100%;
    min-height:420px;
    border:0;
}

/* CONTACT IMAGE */

.contact-image{
    width:100%;
    margin-bottom:24px;
    border-radius:var(--radius);
}

/* FORM MESSAGE */

#formMessage{
    margin-top:12px;
    font-weight:bold;
}

.success-message{
    color:#22c55e;
}

.error-message{
    color:#ef4444;
}

/* DROPDOWN */

.dropdown{
    position:relative;
}

.dropdown > a::after{
    content:" ▾";
    font-size:11px;
}

.dropdown-menu{
    display:none;
    position:absolute;
    top:100%;
    left:0;
    background:var(--surface-2);
    border:1px solid var(--border);
    border-radius:var(--radius-sm);
    min-width:160px;
    z-index:100;
    padding:6px 0;
}

.dropdown-menu a{
    display:block;
    padding:10px 16px;
    margin:0;
    color:var(--text);
    text-decoration:none;
    white-space:nowrap;
}

.dropdown-menu a:hover{
    background:var(--surface);
    color:var(--primary);
}

.dropdown:hover .dropdown-menu{
    display:block;
}

/* FOOTER */

footer{
    background:var(--surface-2);
    padding:25px;
    text-align:center;
    margin-top:40px;
}

/* NAV TOGGLE BUTTON */

.nav-toggle{
    display:none;
    background:none;
    border:none;
    color:var(--text);
    font-size:24px;
    cursor:pointer;
    padding:4px 8px;
    line-height:1;
}

/* MOBILE */

@media (max-width:768px){

header{
    flex-direction:row;
    flex-wrap:wrap;
    justify-content:space-between;
    align-items:center;
    padding:16px 20px;
    text-align:left;
}

.nav-toggle{
    display:block;
}

nav{
    display:none;
    flex-direction:column;
    width:100%;
    margin-top:12px;
    gap:0;
}

nav.open{
    display:flex;
}

nav a{
    padding:12px 4px;
    margin:0;
    border-bottom:1px solid var(--border);
    display:block;
}

nav > a:last-child{
    border-bottom:none;
}

.dropdown{
    width:100%;
    border-bottom:1px solid var(--border);
}

.dropdown > a{
    border-bottom:none;
    display:flex;
    justify-content:space-between;
}

.dropdown-menu{
    position:static;
    border:none;
    border-radius:0;
    background:transparent;
    padding:0 0 8px 16px;
    min-width:unset;
    display:none;
}

.dropdown.open .dropdown-menu{
    display:block;
}

.dropdown:hover .dropdown-menu{
    display:none;
}

.dropdown.open:hover .dropdown-menu{
    display:block;
}

.hero{
    padding:40px 20px;
    min-height:unset !important;
}

.hero h1{
    font-size:28px;
}

.hero p{
    font-size:16px;
}

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

.section{
    padding:40px 20px;
}

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

.contact-container{
    grid-template-columns:1fr;
}

.contact-map iframe{
    min-height:280px;
}

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

.logo-grid img{
    max-width:160px;
    height:50px;
}

}