/* ================= Root Colors ================= */
:root{
    --blue:#0c63e7;
    --deep:#0a3fa3;
    --aqua:#00c6c2;
    --bg:#f4f8ff;
    --text:#1b263b;
    --dark:#111;
}

/* ================= RESET ================= */
*,
*::before,
*::after{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

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

body{
    font-family:system-ui,-apple-system,sans-serif;
    background:var(--bg);
    color:var(--text);
    padding-top: 75px;
}


/* ================= HEADER BASE ================= */
#site-header{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    height:75px;

    display:flex;
    align-items:center;
    justify-content:space-between;

    padding:0 60px;

    background:rgba(255,255,255,0.85);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);

    border-bottom:1px solid rgba(0,0,0,0.05);
    z-index:1000;


}

/* ================= LEFT (LOGO) ================= */
.header-left{
    flex:1;
}

#logo-link{
    font-size:28px;
    font-weight:700;
    color:var(--deep);
    letter-spacing:0px;
}

.nav-item-mobile-only{
    display:none;
}

/* ================= CENTER (MAIN MENU) ================= */
.header-center{
    flex:2;
    display:flex;
    justify-content:center;
}

#main-nav{
    display:flex;
    align-items:center;
    gap:30px;
}

.nav-item{
    font-size:15px;
    font-weight:450;
    position:relative;
    transition:0.3s ease;
}

.nav-item::after{
    content:"";
    position:absolute;
    left:0;
    bottom:-6px;
    width:0%;
    height:2px;
    background:var(--aqua);
    transition:0.3s ease;
}

.nav-item:hover{
    color:var(--blue);
}

.nav-item:hover::after{
    width:100%;
}

/* ================= RIGHT (ACTION BUTTON) ================= */
.header-right{
    flex:1;
    display:flex;
    justify-content:flex-end;
}

.nav-btn{
    padding:10px 22px;
    border-radius:30px;
    font-size:14px;
    font-weight:600;
    background:linear-gradient(135deg,var(--blue),var(--aqua));
    color:#fff;
    transition:0.3s ease;
}

.nav-btn:hover{
    transform:translateY(-2px);
    box-shadow:0 8px 20px rgba(0,198,194,0.3);
}

/* ================= BURGER ================= */
.header-burger{
    display:none;
}

.burger{
    width:28px;
    cursor:pointer;
}

.burger span{
    display:block;
    height:2px;
    background:var(--dark);
    margin:6px 0;
    transition:0.3s ease;
}

.burger.active span:nth-child(1){
    transform:rotate(45deg) translate(5px,5px);
}

.burger.active span:nth-child(2){
    opacity:0;
}

.burger.active span:nth-child(3){
    transform:rotate(-45deg) translate(6px,-6px);
}

/* ================= RESPONSIVE ================= */
@media (max-width:1400px){
    #site-header{
        padding:0 30px;
    }
    #main-nav .nav-item{
        font-size:14px;
        margin-right:20px;
    }
    .nav-btn{
        padding:9px 18px;
        font-size:13px;
    }
}

@media (max-width:1100px){
    .header-center{
        position:fixed;
        top:75px;
        left:-100%;
        width:100%;
        height:calc(100vh - 75px);
        background:#fff;
        display:flex;
        justify-content:center;
        align-items:center;
        transition:0.4s ease;
    }

    .header-center.active{
        left:0;
    }

    #main-nav{
        flex-direction:column;
        gap:25px;
    }

    #main-nav .nav-item{
        font-size:16px;
        text-align:center;
    }

    .header-right{
        display:none; /* Action button մտնում է dropdown */
    }

    .header-burger{
        display:block;
        margin-left:auto;
    }

    .nav-btn{
        font-size:15px;
        padding:12px 20px;
    }

    .nav-item-mobile-only{
        display:block;
    }
}