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

.site-header{
    position: static;

    width: auto;

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

    padding:18px 24px;
    margin-bottom:24px;

    background:rgba(15,23,42,.92);

    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);

    border:1px solid rgba(255,255,255,.08);
    border-radius:24px;

    box-shadow:0 20px 40px rgba(0,0,0,.25);
}
.header-container{
    border-radius: inherit;
}

.header-container{
    width:100%;
    max-width:1100px;

    margin:0 auto;

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

    gap:24px;
}

.logo{
    display:flex;
    align-items:center;
    gap:12px;
    text-decoration:none;
}

.logo-brain{
    font-size:30px;
}

.logo-text{
    display:flex;
    flex-direction:column;
    line-height:1;
}

.logo-omnora{
    color:#ffffff;
    font-size:22px;
    font-weight:800;
}

.logo-student{
    font-size:22px;
    font-weight:800;
    background:linear-gradient(
        90deg,
        #7c5cff,
        #5b8cff
    );
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
}

.sidebar-header{
    display:flex;
    justify-content:center;
    margin-bottom:32px;
}

.sidebar-header .logo{
    display:flex;
    align-items:center;
    justify-content:center;
    gap:14px;
}

.sidebar-logo-brain{
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    flex-shrink: 0;
}

.logo-text{
    display: flex;
    flex-direction: column;
    justify-content: center;
}
/* ==========================================
   DESKTOP NAVIGATION
========================================== */
.desktop-nav{
    display:flex;
    align-items:center;
    gap:28px;
}

.desktop-nav ul{
    display:flex;
    align-items:center;
    gap:24px;

    margin:0;
    padding:0;

    list-style:none;
}

.desktop-nav a{
    color:#e5e7eb;
    text-decoration:none;

    font-size:15px;
    font-weight:500;

    transition:color .3s ease;
}

.desktop-nav a:hover{
    color:#7c3aed;
}

.desktop-nav a.active{
    color:#7c3aed;
    font-weight:600;
}

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

.header-actions{
    display:flex;
    align-items:center;
    gap:16px;
    margin-left:auto;
}

.header-actions a{
    text-decoration:none;
    font-size:15px;
    font-weight:500;
    transition:all .3s ease;
}

/* Login */

.header-actions a:first-child{
    color:#e5e7eb;
}

.header-actions a:first-child:hover{
    color:#7c3aed;
}

/* Sign Up */

.header-actions a:last-child{
    display:inline-flex;
    align-items:center;
    justify-content:center;

    padding:10px 18px;

    border-radius:12px;

    background:#7c3aed;
    color:#ffffff;

    font-weight:600;
}

.header-actions a:last-child:hover{
    background:#6d28d9;
}

/* ===========================================================
   MOBILE NAVIGATION MODULE
   Responsibility:
   - Menu Toggle
   - Sidebar
   - Sidebar Navigation
   - Sidebar Footer
   - Menu Overlay
   - Navigation State
=========================================================== */

/* =====================================
   MENU TOGGLE
===================================== */
.menu-toggle{
    display:none;

    align-items:center;
    justify-content:center;

    width:44px;
    height:44px;

    border:none;
    outline:none;

    border-radius:12px;

    background:rgba(255,255,255,.08);
    color:#ffffff;

    cursor:pointer;

    transition:all .3s ease;
}

.menu-toggle:hover{
    background:rgba(124,58,237,.18);
}

.menu-toggle:focus-visible{
    outline:2px solid #7c3aed;
    outline-offset:2px;
}

.menu-toggle i{
    font-size:20px;
}


/* ==========================================
   MOBILE SIDEBAR
========================================== */
.mobile-sidebar{
    position:fixed;
    top:0;
    left:-100%;

    width:320px;
    max-width:85%;

    height:100dvh;

    display:flex;
    flex-direction:column;

    padding:32px 24px;

    background:#0f172a;

    border-right:1px solid rgba(255,255,255,.08);

    box-shadow:0 20px 60px rgba(0,0,0,.35);

    overflow-y:auto;
   overflow-x: hidden;
   -webkit-overflow-scrolling: touch;
overscroll-behavior: contain;
touch-action: pan-y;

    transition:left .35s ease;

    z-index:1100;
}

.mobile-sidebar.active{
    left:0;
}
.mobile-sidebar ul{
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-sidebar li{
    margin: 0;
    padding: 0;
}
.mobile-sidebar a{
    display: block;
    text-decoration: none;
    color: #ffffff;
    font-size: 18px;
    font-weight: 600;
    padding: 14px 0;
    transition: color .3s ease;
}

.mobile-sidebar a:hover{
    color: #7c5cff;
}

.sidebar-header{
    display:flex;
    align-items:center;
    gap:12px;
    margin-bottom:32px;
}

.sidebar-nav ul{
    list-style:none;
    margin:0;
    padding:0;
}

.sidebar-nav li{
    margin:8px 0;
}

.sidebar-nav a{
    display:flex;
    align-items:center;
    gap:12px;

    padding:14px 18px;

    color:#ffffff;

    text-decoration:none;

    border-radius:12px;

    transition:.3s;
}

.sidebar-nav a:hover{
    background:rgba(124,88,237,.15);
    color:#7c58ed;
}

/* ==========================================
   MENU OVERLAY
========================================== */
.menu-overlay{
    position:fixed;
    inset:0;

    background:rgba(2,6,23,.55);

    opacity:0;
    visibility:hidden;
   
pointer-events: none;
   
    transition:
        opacity .3s ease,
        visibility .3s ease;

    z-index:1090;
}

.menu-overlay.active{
    opacity:1;
    visibility:visible;
   pointer-events: auto;
}

.sidebar-footer{

    margin-top:auto;

    display:flex;

    flex-direction:column;

    gap:12px;

}
.sidebar-footer a{
    width:100%;
    box-sizing:border-box;
}
.sidebar-footer .login-btn,
.sidebar-footer .signup-btn{

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

    width:100%;

    padding:16px 20px;

    box-sizing:border-box;
}

body.menu-open #hero {
    overflow: hidden;
    touch-action: none;
}

/*************************************************************
   END MOBILE NAVIGATION MODULE
*************************************************************/

/* ==========================================
   RESPONSIVE
========================================== */

/* Tablet */
@media (max-width: 1024px) {

    .header-container{
        gap:16px;
    }

}

/* Mobile */
@media (max-width:768px){

    .desktop-nav{
        display:none;
    }

    .header-actions{
        display:none;
    }

    .menu-toggle{
        display:flex;
    }

    .header-container{
        justify-content:space-between;
    }

}

/* Small phones */
@media (max-width:480px){

    .site-header{
        padding:14px 18px;
    }

    .mobile-sidebar{
        width:280px;
    }

  }