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

.site-header {
    position: sticky;
    top: 0;
    left: 0;
    right: 0;
    z-index: 500;
    height: 86px;
    border-bottom: 1px solid #e7ebf1;
    background: rgba(255, 255, 255, .86);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    transition: box-shadow .3s ease, height .3s ease;
}

.site-header.is-scrolled {
    box-shadow: 0 10px 30px rgba(15, 35, 70, .09);
}

.header-inner {
    height: 100%;
    display: flex;
    align-items: center;
    gap: 28px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 9px;
    flex-shrink: 0;
    transition: transform .3s ease;
}

.logo:hover {
    transform: translateY(-1px);
}

.logo img {
    max-width: 150px;
    transition: filter .3s ease;
}

.logo-tagline {
    border-left: 1px solid #cfd5df;
    padding-left: 14px;
    letter-spacing: 1px;
    font-weight: 700;
    font-size: 11px;
    line-height: 1.35;
    color: var(--muted);
}

.main-nav {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 32px;
}

.header-buttons {
    display: flex;
    gap: 10px;
}

.btn {
    min-height: 45px;
    padding: 0 22px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease, border-color .25s ease;
}

.btn-primary {
    color: #fff;
    background: linear-gradient(135deg, var(--blue), #0a3f9e);
    box-shadow: 0 8px 20px rgba(18, 96, 216, .25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 28px rgba(18, 96, 216, .35);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline {
    color: #101c33;
    border: 1px solid #aeb8c7;
    background: #fff;
}

.btn-outline:hover {
    border-color: var(--blue);
    color: var(--blue);
    background: var(--light-blue);
    transform: translateY(-2px);
}

.play {
    border: 1px solid currentColor;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 7px;
    flex-shrink: 0;
    transition: transform .3s ease;
}

.btn:hover .play {
    transform: scale(1.15);
}

.mobile-menu {
    display: none;
    margin-left: auto;
    background: transparent;
    border: 0;
    font-size: 24px;
    cursor: pointer;
}

.mobile-menu svg {
    width: 25px;
}

.nav-item {
    position: relative;
}

.nav-item>a {
    display: flex;
    align-items: center;
    gap: 4px;
    color: #07183d;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    padding: 6px 0;
    position: relative;
}

.nav-item>a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 0;
    height: 2px;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--blue), #06b6d4);
    transition: width .25s ease;
}

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

.nav-item>a .material-symbols-outlined {
    font-size: 16px;
    transition: transform .25s ease;
}

.nav-item:hover>a .material-symbols-outlined {
    transform: rotate(180deg);
}

.submenu {
    position: absolute;
    top: calc(100% + 20px);
    left: 50%;
    transform: translateX(-50%) translateY(10px);

    min-width: 220px;
    padding: 12px;

    background: #fff;
    border: 1px solid #e7ebf1;
    border-radius: 12px;
    box-shadow: 0 15px 40px rgba(0, 30, 80, 0.12);

    opacity: 0;
    visibility: hidden;
    pointer-events: none;

    transition: 0.25s ease;
}

.submenu a {
    display: block;
    padding: 11px 14px;
    color: #07183d;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 7px;
    transition: background .2s ease, color .2s ease, padding-left .2s ease;
}

.submenu a:hover {
    background: #f1f6ff;
    color: #1264e8;
    padding-left: 18px;
}

.nav-item:hover .submenu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
    z-index: 9;
}



@media (max-width: 850px) {

    .main-nav {
        position: fixed;
        z-index: 999;
        top: 0;
        right: 0;
        width: min(88%, 380px);
        height: 100vh;
        padding: 90px 25px 30px;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: #fff;
        /* Closed position */
        transform: translateX(100%);
        transition: transform 0.35s ease;
        overflow-y: auto;
        box-shadow: 10px 0 35px rgba(0, 0, 0, 0.12);
        overflow-x: hidden;
    }

    /* Add this class using JavaScript */
    .main-nav.menu-open {
        transform: translateX(0);
    }

    .nav-item {
        width: 100%;
        border-bottom: 1px solid #e7ebf1;
    }

    .nav-item>a {
        justify-content: space-between;
        padding: 18px 0;
        font-size: 16px;
    }

    .nav-item>a::after {
        display: none;
    }

    .submenu {
        position: static;

        min-width: 100%;
        padding: 0 0 12px;

        border: 0;
        border-radius: 0;
        box-shadow: none;

        transform: none;
        opacity: 1;
        visibility: visible;
        pointer-events: auto;

        display: none;
    }

    .nav-item:hover .submenu {
        transform: none;
    }

    /* Add .submenu-open to show a submenu */
    .nav-item.submenu-open .submenu {
        display: block;
    }

    .submenu a {
        padding: 10px 15px;
        font-size: 14px;
    }
}

.menu-close {
    display: none;
}

@media (max-width: 768px) {

    .menu-close {
        display: flex;
        align-items: center;
        justify-content: center;

        position: absolute;
        top: 25px;
        right: 25px;

        width: 32px;
        height: 32px;

        padding: 0;
        border: none;
        background: transparent;
        cursor: pointer;
    }

    .menu-close svg {
        width: 20px;
        height: 20px;
    }
}


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

@media (max-width: 1200px) {

    .main-nav {
        gap: 15px;
    }

    .header-buttons {
        display: none;
    }
}

@media (max-width: 850px) {
    .site-header {
        height: 82px;
    }

    .logo-tagline {
        display: none;
    }

    .mobile-menu {
        display: block;
    }
}

@media (max-width: 600px) {
    .logo img {
        max-width: 120px;
    }
}
/* Invisible bridge over the gap between the nav link and the dropdown
   panel above it. Without this, moving the mouse from the parent item
   down toward the submenu crosses a dead zone that isn't part of either
   element's hover box, so :hover is lost and the submenu closes before
   the pointer ever reaches it. */
.submenu::before {
    content: "";
    position: absolute;
    top: -20px;
    left: 0;
    right: 0;
    height: 20px;
}