/* =====================================================================
   BeFresh — Navbar (v2)
   site.css-এর পরে লোড হয় (_Layout.cshtml)। শুধু নেভবার এখানে।
   ===================================================================== */

:root {
    --nav-h: 68px;
    --nav-h-compact: 58px;
    --nav-top: 16px;
    --nav-glass: rgba(255, 255, 255, .72);
    --nav-solid: rgba(255, 255, 255, .96);
    --nav-track: rgba(11, 60, 66, .06);
}

/* ---------- Wrapper ---------- */
/* সবসময় fixed। পেজের উপরে থাকলে ভাসমান (উপরে গ্যাপ), স্ক্রল করলে স্ক্রিনের উপরে লেগে যায়। */
.site-header {
    position: fixed;
    top: var(--nav-top);
    left: 0;
    right: 0;
    z-index: 100;
    padding-inline: var(--edge, 16px); /* সেকশনগুলোর সাথে একই কিনারা */
    pointer-events: none;
    transition: top .4s cubic-bezier(.22,.61,.36,1);
}

    .site-header.is-scrolled {
        top: 0;
    }

/* ---------- Pill ---------- */
.navbar {
    pointer-events: auto;
    position: relative;
    max-width: calc(var(--content-w, 1280px) + 112px); /* শুরুতে একটু চওড়া, স্ক্রল করলে সেকশনের সমান */
    height: var(--nav-h);
    margin-inline: auto;
    display: grid;
    grid-template-columns: 1fr auto 1fr; /* লোগো | লিংক (ঠিক মাঝখানে) | অ্যাকশন */
    align-items: center;
    gap: 16px;
    padding: 0 8px 0 18px;
    border-radius: 999px;
    background: var(--nav-glass);
    border: 1px solid rgba(255, 255, 255, .65);
    box-shadow: 0 8px 28px rgba(16, 24, 40, .10), inset 0 1px 0 rgba(255, 255, 255, .8);
    backdrop-filter: saturate(180%) blur(18px);
    -webkit-backdrop-filter: saturate(180%) blur(18px);
    transition: height .35s ease, max-width .45s ease, background .3s, box-shadow .3s, border-radius .4s ease;
}
    /* ব্র্যান্ড গ্র্যাডিয়েন্ট বর্ডার — স্ক্রল করলে পুরো নেভবারের চারপাশে (দুই পাশ + নিচ) দেখা যায়।
   mask দিয়ে শুধু বর্ডারের অংশটা রাখা হয়েছে, তাই পিলের গোল কোণ হুবহু মেনে চলে। */
    .navbar::after {
        content: "";
        position: absolute;
        inset: -1px;
        border-radius: inherit;
        pointer-events: none; /* -1px: নিজস্ব বর্ডারের জায়গা ঢেকে দেয় */
        padding: 0 2px 2px; /* উপরে 0 (স্ক্রিনের সাথে লাগানো), পাশে/নিচে 2px */
        background: linear-gradient(90deg, #1b7c80, #0ea5dc, #2ec5c9, #1b7c80);
        background-size: 300% 100%;
        -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
        -webkit-mask-composite: xor;
        mask: linear-gradient(#000 0 0) content-box exclude, linear-gradient(#000 0 0);
        opacity: 0;
        transition: opacity .4s ease;
        animation: navBorderFlow 8s linear infinite;
    }

@keyframes navBorderFlow {
    to {
        background-position: 300% 0;
    }
}

.site-header.is-scrolled .navbar::after {
    opacity: 1;
}

.site-header.is-scrolled .navbar {
    border-radius: 0 0 26px 26px; /* উপরে লেগে থাকা "ট্যাব" শেপ */
    border-color: transparent; /* সাদা বর্ডার সরানো, যাতে গ্র্যাডিয়েন্টের নিচে সাদা না দেখা যায় */
    height: var(--nav-h-compact);
    max-width: var(--content-w, 1280px); /* = সেকশনগুলোর প্রস্থ */
    background: var(--nav-solid);
    box-shadow: 0 14px 36px rgba(16, 24, 40, .14);
}

/* ---------- Logo ---------- */
.navbar__brand {
    justify-self: start;
    display: flex;
    align-items: center;
    border-radius: 12px;
}

    .navbar__brand img {
        height: 46px;
        width: auto;
        transition: height .35s ease, transform .3s ease;
    }

.site-header.is-scrolled .navbar__brand img {
    height: 40px;
}

.navbar__brand:hover img {
    transform: scale(1.04);
}

/* ---------- Links + sliding pill ---------- */
.navbar__links {
    position: relative;
    display: flex;
    align-items: center;
    gap: 2px;
    list-style: none;
    margin: 0;
    padding: 5px;
    border-radius: 999px;
    background: var(--nav-track);
}

    .navbar__links > li {
        position: relative;
        z-index: 1;
    }

.navbar__indicator {
    position: absolute !important;
    z-index: 0 !important;
    top: 5px;
    bottom: 5px;
    left: 0;
    width: 0;
    border-radius: 999px;
    background: #fff;
    box-shadow: 0 2px 10px rgba(16, 24, 40, .10), 0 0 0 1px rgba(27, 124, 128, .08);
    opacity: 0;
    transition: transform .35s cubic-bezier(.22,.61,.36,1), width .35s cubic-bezier(.22,.61,.36,1), opacity .2s;
    pointer-events: none;
}

    .navbar__indicator.no-anim {
        transition: none;
    }

.navbar__link {
    display: block;
    padding: 9px 16px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 500;
    color: #2a2e33;
    letter-spacing: .01em;
    transition: color .2s;
}

    .navbar__link:hover {
        color: var(--ink);
    }

    .navbar__link.is-active {
        font-weight: 600;
        background: var(--brand-grad);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }

.navbar__mobile-extra {
    display: none;
}

/* ---------- Right actions ---------- */
.navbar__actions {
    justify-self: end;
    display: flex;
    align-items: center;
    gap: 14px;
}

.navbar__hotline {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--ink);
    line-height: 1.15;
}

    .navbar__hotline small {
        display: block;
        font-size: 11px;
        font-weight: 500;
        color: var(--muted);
        letter-spacing: .04em;
        text-transform: uppercase;
    }

    .navbar__hotline b {
        display: block;
        font-size: 14px;
        font-weight: 600;
        font-variant-numeric: tabular-nums;
        white-space: nowrap;
    }

.navbar__hotline-icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    flex: none;
    color: var(--teal);
    background: rgba(27, 124, 128, .10);
    transition: background .25s, color .25s, transform .25s;
}

.navbar__hotline:hover .navbar__hotline-icon {
    background: var(--brand-grad);
    color: #fff;
    transform: rotate(-12deg);
}

.navbar__login {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    height: 46px;
    padding: 0 22px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    white-space: nowrap;
    background: var(--brand-grad);
    background-size: 160% 100%;
    background-position: 0 0;
    box-shadow: 0 6px 18px rgba(14, 165, 220, .28);
    transition: background-position .4s ease, box-shadow .3s, transform .2s, height .35s;
}

    .navbar__login:hover {
        background-position: 100% 0;
        box-shadow: 0 10px 24px rgba(14, 165, 220, .38);
        transform: translateY(-1px);
    }

    .navbar__login .icon {
        transition: transform .25s;
    }

    .navbar__login:hover .icon {
        transform: translateX(3px);
    }

.site-header.is-scrolled .navbar__login--desktop {
    height: 42px;
}

/* ---------- Hamburger ---------- */
.navbar__toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 50%;
    background: var(--brand-grad);
    position: relative;
    box-shadow: 0 6px 16px rgba(14,165,220,.28);
}

    .navbar__toggle span {
        position: absolute;
        left: 13px;
        right: 13px;
        height: 2px;
        border-radius: 2px;
        background: #fff;
        transition: transform .3s ease, opacity .2s;
    }

        .navbar__toggle span:nth-child(1) {
            top: 15px;
        }

        .navbar__toggle span:nth-child(2) {
            top: 21px;
        }

        .navbar__toggle span:nth-child(3) {
            top: 27px;
        }

    .navbar__toggle[aria-expanded="true"] span:nth-child(1) {
        transform: translateY(6px) rotate(45deg);
    }

    .navbar__toggle[aria-expanded="true"] span:nth-child(2) {
        opacity: 0;
    }

    .navbar__toggle[aria-expanded="true"] span:nth-child(3) {
        transform: translateY(-6px) rotate(-45deg);
    }

/* ---------- Responsive ---------- */
@media (max-width: 1320px) {
    .navbar__hotline--desktop {
        display: none;
    }
}

@media (max-width: 1080px) {
    .navbar__link {
        padding: 8px 11px;
        font-size: 14px;
    }
}

@media (max-width: 920px) {
    :root {
        --nav-h: 60px;
        --nav-h-compact: 58px;
        --nav-top: 12px;
    }

    .navbar {
        grid-template-columns: 1fr auto;
        padding: 0 8px 0 16px;
    }

    .navbar__brand img, .site-header.is-scrolled .navbar__brand img {
        height: 40px;
    }

    .navbar__login--desktop {
        display: none;
    }

    .navbar__toggle {
        display: block;
    }

    .navbar__indicator {
        display: none;
    }

    .navbar__links {
        position: absolute;
        top: calc(100% + 10px);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 2px;
        padding: 12px;
        border-radius: 24px;
        background: #fff;
        box-shadow: 0 24px 60px rgba(16, 24, 40, .18);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px) scale(.98);
        transform-origin: top center;
        transition: opacity .25s ease, transform .25s ease, visibility .25s;
        max-height: calc(100vh - var(--nav-h) - 40px);
        overflow-y: auto;
    }

    .navbar.is-open .navbar__links {
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    .navbar__link {
        padding: 13px 16px;
        font-size: 16px;
        border-radius: 14px;
    }

        .navbar__link:hover {
            background: var(--surface-2);
        }

        .navbar__link.is-active {
            background: rgba(27,124,128,.08);
            -webkit-background-clip: border-box;
            background-clip: border-box;
            color: var(--teal);
        }

    .navbar__mobile-extra {
        display: flex;
        flex-direction: column;
        gap: 12px;
        padding: 14px 6px 4px;
        margin-top: 6px;
        border-top: 1px solid var(--line);
    }

    .navbar__login--block {
        width: 100%;
    }
}

body.nav-open {
    overflow: hidden;
}

/* =====================================================================
   Go To Top button (navbar.js পেজে যোগ করে)
   ===================================================================== */
.to-top {
    position: fixed;
    z-index: 90;
    right: clamp(16px, 2vw, 28px);
    bottom: calc(clamp(16px, 2vw, 28px) + env(safe-area-inset-bottom, 0px));
    width: 54px;
    height: 54px;
    padding: 0;
    border: 0;
    border-radius: 50%;
    display: grid;
    place-items: center;
    cursor: pointer;
    color: var(--teal);
    background: #fff;
    box-shadow: 0 10px 28px rgba(16, 24, 40, .18);
    opacity: 0;
    visibility: hidden;
    transform: translateY(18px) scale(.9);
    transition: opacity .3s ease, transform .35s cubic-bezier(.22,.61,.36,1), visibility .3s, box-shadow .3s;
}

    .to-top.is-visible {
        opacity: 1;
        visibility: visible;
        transform: none;
    }

    .to-top::before { /* হোভারে গ্র্যাডিয়েন্ট ফিল */
        content: "";
        position: absolute;
        inset: 5px;
        border-radius: 50%;
        background: var(--brand-grad);
        opacity: 0;
        transform: scale(.6);
        transition: opacity .3s, transform .3s cubic-bezier(.22,.61,.36,1);
    }

    .to-top:hover {
        box-shadow: 0 14px 32px rgba(14, 165, 220, .35);
    }

        .to-top:hover::before, .to-top:focus-visible::before {
            opacity: 1;
            transform: none;
        }

        .to-top:hover .to-top__arrow, .to-top:focus-visible .to-top__arrow {
            color: #fff;
            transform: translateY(-2px);
        }

    .to-top:active {
        transform: scale(.94);
    }

.to-top__ring {
    position: absolute;
    inset: 0;
    transform: rotate(-90deg);
    pointer-events: none;
}

    .to-top__ring circle {
        fill: none;
        stroke-width: 3;
    }

    .to-top__ring .track {
        stroke: rgba(27, 124, 128, .12);
    }

    .to-top__ring .bar {
        stroke: url(#toTopGrad);
        stroke-linecap: round;
        transition: stroke-dashoffset .1s linear;
    }

.to-top__arrow {
    position: relative;
    z-index: 1;
    display: grid;
    transition: color .25s, transform .25s;
}

.to-top__tip {
    position: absolute;
    right: calc(100% + 10px);
    top: 50%;
    transform: translate(6px, -50%);
    padding: 6px 10px;
    border-radius: 8px;
    white-space: nowrap;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    background: var(--ink);
    opacity: 0;
    pointer-events: none;
    transition: opacity .2s, transform .2s;
}

.to-top:hover .to-top__tip, .to-top:focus-visible .to-top__tip {
    opacity: 1;
    transform: translate(0, -50%);
}

@media (max-width: 600px) {
    .to-top {
        width: 48px;
        height: 48px;
    }

    .to-top__tip {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .site-header, .navbar, .navbar__indicator, .navbar__links, .to-top, .to-top::before {
        transition: none !important;
    }

        .navbar::after {
            animation: none;
        }
}