:root {
        --nlfb-blue: #0b5fa5;
        --nlfb-blue-dark: #06264a;
        --nlfb-green: #00693e;
        --nlfb-red: #e4002b;
        --nlfb-cream: #f5f8fb;
        --nlfb-ink: #1b2733;
        --radius-lg: 18px;
        --radius-md: 12px;

        /* Theme tokens (light values). Dark values live in nlfb-dark.css */
        --nlfb-heading: #06264a;
        --nl-bg: #ffffff;
        --nl-surface: #ffffff;
        --nl-surface-2: #eef2f6;
        --nl-surface-3: #fafbfc;
        --nl-line: #e5edf5;
        --nl-line-strong: #d6e3f0;
        --nl-text: #3a4a5a;
        --nl-muted: #5a6b7d;
        --nl-faint: #8fa0b3;
        --nl-tint-blue: #e7f0fa;
        --nl-tint-blue-2: #eef4fa;
        --nl-tint-red: #fde7eb;
        --nl-tint-red-2: #fff5f5;
        --nl-tint-green: #f0f9f4;
        --nl-tint-green-2: #e3f4ec;
    }
    * {
        box-sizing: border-box;
    }
    body {
        font-family: "Inter", "Hind Siliguri", sans-serif;
        color: var(--nlfb-ink);
        background: #fff;
        overflow-x: hidden;
    }
    h1,
    h2,
    h3,
    h4,
    .font-display {
        font-family: "Poppins", "Hind Siliguri", sans-serif;
        font-weight: 700;
    }
    .bn {
        font-family: "Hind Siliguri", sans-serif;
    }
    a {
        text-decoration: none;
    }
    .text-nlfb-blue {
        color: var(--nlfb-blue);
    }
    .text-nlfb-green {
        color: var(--nlfb-green);
    }
    .text-nlfb-red {
        color: var(--nlfb-red);
    }
    .bg-nlfb-blue {
        background: var(--nlfb-blue);
    }
    .bg-nlfb-navy {
        background: var(--nlfb-blue-dark);
    }
    .bg-nlfb-green {
        background: var(--nlfb-green);
    }
    .bg-nlfb-red {
        background: var(--nlfb-red);
    }
    .bg-nlfb-cream {
        background: var(--nlfb-cream);
    }

    .flag-bar {
        height: 5px;
        background: linear-gradient(90deg, var(--nlfb-green) 0 50%, var(--nlfb-red) 50% 100%);
    }
    
    @media (min-width: 1400px) {
    .container, .container-lg, .container-md, .container-sm, .container-xl, .container-xxl {
        max-width: 1320px !important;
    }
}

    /* ===== Topbar ===== */
    .topbar {
        background: var(--nlfb-blue-dark);
        color: #cfe0f2;
        font-size: 0.85rem;
    }
    .topbar a {
        color: #cfe0f2;
        opacity: 0.9;
    }
    .topbar a:hover {
        color: #fff;
        opacity: 1;
    }

    /* ===== Navbar ===== */
    .navbar-nlfb {
        background: #fff;
        box-shadow: 0 2px 14px rgba(6, 38, 74, 0.08);
        padding: 0;
    }

    .navbar-brand img {
        max-width: 340px;
    }

    .navbar-nlfb .navbar-brand small {
        display: block;
        font-size: 0.68rem;
        font-weight: 500;
        color: #5a6b7d;
        font-family: "Hind Siliguri", sans-serif;
        line-height: 1.3;
    }
    .navbar-nlfb .nav-link {
        font-weight: 600;
        color: var(--nlfb-ink);
        padding: 0.5rem 1rem !important;
        font-size: 0.95rem;
    }
    .navbar-nlfb .nav-link:hover {
        color: var(--nlfb-blue);
    }

    /* ===== Dropdown (smooth hover on desktop) ===== */
    .nav-dropdown-hover .dropdown-toggle::after {
        transition: transform 0.25s ease;
    }
    .nav-dropdown-hover.show .dropdown-toggle::after {
        transform: rotate(180deg);
    }
    .nav-dropdown-hover .dropdown-menu {
        border: none;
        border-radius: var(--radius-md);
        box-shadow: 0 18px 40px rgba(6, 38, 74, 0.16);
        padding: 0.6rem;
        min-width: 260px;
        margin-top: 0.5rem;
        opacity: 0;
        visibility: hidden;
        transform: translateY(10px);
        display: block;
        pointer-events: none;
        transition:
            opacity 0.25s ease,
            transform 0.25s ease,
            visibility 0.25s;
    }
    .nav-dropdown-hover .dropdown-menu.show {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
        pointer-events: auto;
    }
    .nav-dropdown-hover .dropdown-item {
        padding: 0.55rem 0.9rem;
        border-radius: 8px;
        font-weight: 600;
        font-size: 0.92rem;
        color: var(--nlfb-ink);
        transition:
            background 0.18s ease,
            color 0.18s ease,
            padding-left 0.18s ease;
    }
    .nav-dropdown-hover .dropdown-item:hover,
    .nav-dropdown-hover .dropdown-item:focus {
        background: var(--nlfb-cream);
        color: var(--nlfb-blue);
        padding-left: 1.15rem;
    }
    @media (max-width: 991.98px) {
        .nav-dropdown-hover .dropdown-menu {
            box-shadow: none;
            background: var(--nlfb-cream);
            margin-top: 0;
        }
    }

    /* ===== Multi-level dropdown (3rd level and deeper) ===== */
    .nav-dropdown-hover .dropdown-submenu {
        position: relative;
    }
    .nav-dropdown-hover .dropdown-submenu > .dropdown-item i {
        font-size: 0.75rem;
        opacity: 0.6;
    }
    @media (min-width: 992px) {
        .nav-dropdown-hover .dropdown-submenu > .dropdown-menu {
            position: absolute;
            top: -0.6rem;
            left: 100%;
            margin-top: 0;
            margin-left: 0.35rem;
            transform: translateX(10px);
        }
        .nav-dropdown-hover .dropdown-submenu:hover > .dropdown-menu,
        .nav-dropdown-hover .dropdown-submenu:focus-within > .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateX(0);
            pointer-events: auto;
        }
    }
    @media (max-width: 991.98px) {
        .nav-dropdown-hover .dropdown-submenu > .dropdown-menu {
            position: static;
            opacity: 1;
            visibility: visible;
            transform: none;
            pointer-events: auto;
            padding: 0 0 0 0.75rem;
        }
    }
    .btn-donate {
        background: var(--nlfb-red);
        color: #fff;
        font-weight: 700;
        border-radius: 50px;
        padding: 0.55rem 1.6rem;
        border: none;
        box-shadow: 0 6px 16px rgba(228, 0, 43, 0.25);
    }
    .btn-donate:hover {
        background: #c20026;
        color: #fff;
    }

    /* ===== Hero ===== */
    .hero {
        position: relative;
        background: radial-gradient(circle at 85% 20%, #0d74c9 0%, var(--nlfb-blue) 40%, var(--nlfb-blue-dark) 100%);
        overflow: hidden;
        padding: 5.5rem 0 6.5rem;
    }
    .hero::before {
        content: "";
        position: absolute;
        inset: 0;
        background-image: radial-gradient(circle, rgba(255, 255, 255, 0.08) 1.5px, transparent 1.5px);
        background-size: 26px 26px;
        opacity: 0.5;
    }
    .hero-badge {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        background: rgba(255, 255, 255, 0.12);
        border: 1px solid rgba(255, 255, 255, 0.25);
        color: #e7f1fc;
        padding: 0.4rem 1rem;
        border-radius: 50px;
        font-size: 0.82rem;
        font-weight: 600;
    }
    .hero h1 {
        color: #fff;
        font-size: 40px;
        line-height: 1.15;
    }
    .sliderTitle span {
        color: #ff0000;
    }

    .hero .bn-tagline {
        color: #bcdcf7;
        font-size: 30px;
        font-weight: 600;
    }

    .redcolor {
        color: #ff002a;
    }

    .greencolor {
        color: #00fa00;
    }

    .hero p.lead {
        color: #d7e7f8;
        font-size: 1.05rem;
    }
    .btn-outline-light-nlfb {
        border: 2px solid rgba(255, 255, 255, 0.55);
        color: #fff;
        font-weight: 600;
        border-radius: 50px;
        padding: 0.55rem 1.5rem;
    }
    .btn-outline-light-nlfb:hover {
        background: #fff;
        color: var(--nlfb-blue);
    }

    /* Liver motif graphic */
    .liver-orb {
        position: relative;
        width: 100%;
        max-width: 400px;
        aspect-ratio: 1/1;
        margin: 0 auto;
    }
    .liver-orb .orb-glow {
        position: absolute;
        inset: -12%;
        background: radial-gradient(circle, rgba(255, 255, 255, 0.16) 0%, transparent 70%);
        border-radius: 50%;
    }
    .liver-orb .ring {
        position: absolute;
        border-radius: 50%;
        border: 1.5px dashed rgba(255, 255, 255, 0.25);
    }
    .liver-orb .ring.r1 {
        inset: 0;
    }
    .liver-orb .ring.r2 {
        inset: 14%;
    }
    .liver-orb .disc {
        position: absolute;
        inset: 20%;
        background: radial-gradient(circle at 35% 30%, #fff 0%, #eaf4ff 40%, #cfe6fb 100%);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: 0 25px 60px rgba(0, 0, 0, 0.25);
        padding: 14%;
    }
    .liver-illustration {
        width: 100%;
        height: 100%;
        overflow: visible;
    }
    /* Realistic heartbeat pulse animation */
    .liver-shape,
    .liver-pulse-dot {
        transform-box: fill-box;
        transform-origin: center;
        animation: liverHeartbeat 1.15s ease-in-out infinite;
    }
    .liver-pulse-dot {
        animation-delay: 0.06s;
    }
    @keyframes liverHeartbeat {
        0%, 100% { transform: scale(1); }
        14% { transform: scale(1.07); }
        28% { transform: scale(1); }
        42% { transform: scale(1.045); }
        60% { transform: scale(1); }
    }
    .pulse-line {
        stroke-dasharray: 14 8;
        animation: ecgTravel 6s linear infinite;
    }
    @keyframes ecgTravel {
        to { stroke-dashoffset: -220; }
    }
    .liver-orb .chip {
        position: absolute;
        background: #fff;
        border-radius: 50px;
        padding: 0.5rem 0.9rem;
        font-size: 0.78rem;
        font-weight: 700;
        color: var(--nlfb-heading);
        box-shadow: 0 10px 24px rgba(0, 0, 0, 0.18);
        display: flex;
        align-items: center;
        gap: 0.4rem;
        white-space: nowrap;
    }
    .liver-orb .chip svg {
        width: 14px;
        height: 14px;
        flex-shrink: 0;
    }
    .chip-1 {
        top: 4%;
        left: -8%;
    }
    .chip-2 {
        bottom: 12%;
        right: -10%;
    }
    .chip-3 {
        bottom: -2%;
        left: 12%;
    }

    /* ===== Section titles ===== */
    .eyebrow {
        color: var(--nlfb-green);
        font-weight: 700;
        letter-spacing: 0.06em;
        text-transform: uppercase;
        font-size: 0.8rem;
    }
    .section-title {
        font-size: clamp(1.5rem, 2.6vw, 2.1rem);
    }

    /* ===== Who we help cards ===== */
    .help-card {
        border-radius: var(--radius-lg);
        padding: 1.9rem 1.6rem;
        height: 100%;
        color: #fff;
        transition:
        transform 0.25s ease,
        box-shadow 0.25s ease;
        position: relative;
        overflow: hidden;
    }
    .help-card:hover {
        transform: translateY(-6px);
        box-shadow: 0 18px 34px rgba(6, 38, 74, 0.18);
        color: #fff;
    }
    .help-card i.help-icon {
        font-size: 1.9rem;
        margin-bottom: 1rem;
        display: block;
    }
    .help-card h5 {
        color: #fff;
        margin-bottom: 0.5rem;
    }
    .help-card p {
        color: rgba(255, 255, 255, 0.85);
        font-size: 0.9rem;
        margin-bottom: 0;
    }
    .help-card .arrow {
        position: absolute;
        right: 1.4rem;
        bottom: 1.3rem;
        color: rgba(255, 255, 255, 0.7);
    }
    .hc-1 {
        background: linear-gradient(145deg, #0b5fa5, #06264a);
    }
    .hc-2 {
        background: linear-gradient(145deg, #00693e, #013d24);
    }
    .hc-3 {
        background: linear-gradient(145deg, #e4002b, #8f0019);
    }
    .hc-4 {
        background: linear-gradient(145deg, #0d74c9, #0b5fa5);
    }

    /* ===== Stats ===== */
    .stats-strip {
        background: var(--nlfb-cream);
        border-top: 1px solid #e5edf5;
        border-bottom: 1px solid #e5edf5;
    }
    .stat-num {
        font-family: "Poppins", sans-serif;
        font-weight: 500;
        font-size: 2rem;
        color: var(--nlfb-heading);
    }
    .stat-label {
        font-size: 0.88rem;
        color: #5a6b7d;
        font-weight: 600;
    }

    /* ===== Donate strip ===== */
    .donate-strip {
        background: var(--nlfb-blue-dark);
        border-radius: var(--radius-lg);
        padding: 2.2rem;
        color: #fff;
    }
    .amount-btn {
        background: rgba(255, 255, 255, 0.08);
        border: 1.5px solid rgba(255, 255, 255, 0.3);
        color: #fff;
        font-weight: 700;
        border-radius: 10px;
        padding: 0.6rem 1.3rem;
    }
    .amount-btn:hover,
    .amount-btn.active {
        background: var(--nlfb-green);
        border-color: var(--nlfb-green);
    }

    /* ===== Feature panels (risk checker / children support) ===== */
    .panel {
        border-radius: var(--radius-lg);
        overflow: hidden;
        color: #fff;
        position: relative;
    }
    .panel-body {
        padding: 2.4rem;
    }
    .panel-icon-block {
        background: rgba(255, 255, 255, 0.12);
        border-radius: var(--radius-md);
        aspect-ratio: 4/3;
        overflow: hidden;
        position: relative;
    }
    .panel-icon-block img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
    }
    .panel-red {
        background: linear-gradient(135deg, #c20026, #7a0018);
    }
    .panel-green {
        background: linear-gradient(135deg, #00693e, #013d24);
    }
    .btn-panel {
        background: #fff;
        color: var(--nlfb-heading);
        font-weight: 700;
        border-radius: 50px;
        padding: 0.6rem 1.5rem;
        border: none;
    }
    .btn-panel:hover {
        background: #eef4fa;
        color: #230101;
    }

    /* ===== Campaigns ===== */
    .campaign-card {
        border-radius: var(--radius-md);
        overflow: hidden;
        height: 170px;
        position: relative;
        color: #fff;
        display: flex;
        align-items: flex-end;
        background-size: cover;
        background-position: center;
    }
    .campaign-card::before {
        content: "";
        position: absolute;
        inset: 0;
        background: linear-gradient(180deg, rgba(6, 38, 74, 0.15) 0%, rgba(6, 38, 74, 0.85) 100%);
    }
    .campaign-card span {
        position: relative;
        padding: 1rem;
        font-weight: 700;
        font-size: 0.95rem;
        width: 100%;
    }

    /* ===== Testimonials ===== */
    .story-card {
        background: var(--nlfb-cream);
        border-radius: var(--radius-lg);
        padding: 2rem;
        height: 100%;
        border: 1px solid #e5edf5;
    }
    .story-card .quote-icon {
        color: var(--nlfb-green);
        font-size: 1.6rem;
        margin-bottom: 0.8rem;
    }
    .story-card p.quote {
        font-style: italic;
        color: #37485a;
    }
    .story-avatar {
        width: 46px;
        height: 46px;
        border-radius: 50%;
        background: var(--nlfb-blue);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 700;
    }

    /* ===== Support CTA banner ===== */
    .support-banner {
        background:
            linear-gradient(120deg, rgba(228, 0, 43, 0.92) 0%, rgba(143, 0, 25, 0.94) 100%),
            url("https://images.unsplash.com/photo-1582213782179-e0d53f98f2ca?auto=format&fit=crop&w=1400&q=70")
                center/cover;
        border-radius: var(--radius-lg);
        color: #fff;
        padding: 3rem 2.2rem;
        position: relative;
        overflow: hidden;
    }

    /* ===== FAQ ===== */
    .accordion-button {
        font-weight: 500;
        color: var(--nlfb-heading);
    }
    .accordion-button:not(.collapsed) {
        color: var(--nlfb-blue);
        background: #eef6ff;
    }
    .accordion-button:focus {
        box-shadow: none;
    }

    /* ===== Footer ===== */
    footer {
        background: var(--nlfb-blue-dark);
        color: #c4d6e8;
    }
    footer h6 {
        color: #fff;
        font-weight: 700;
        margin-bottom: 1rem;
    }
    footer a {
        color: #c4d6e8;
        font-size: 0.92rem;
    }
    footer a:hover {
        color: #fff;
    }
    footer .social-icon {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.08);
        display: inline-flex;
        align-items: center;
        justify-content: center;
        color: #fff;
        margin-right: 0.5rem;
    }
    footer .social-icon:hover {
        background: var(--nlfb-green);
    }
    .footer-bottom {
        background: #041c38;
        font-size: 0.82rem;
    }

.whatsapp-float {
    position: fixed;
    bottom: 22px;
    right: 22px;
    z-index: 999;
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: #25d366;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.25);
    text-decoration: none;

    /* Floating animation */
    animation: whatsappFloat 2.5s ease-in-out infinite;

    transition: all 0.3s ease;
}


/* Floating up and down */
@keyframes whatsappFloat {

    0% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-8px);
    }

    100% {
        transform: translateY(0);
    }

}


/* Hover */
.whatsapp-float:hover {
    color: #fff;
    background: #20bd5a;
    transform: scale(1.1);
    animation-play-state: paused;
}

    /* ===== Back to top ===== */
    .back-to-top {
        position: fixed;
        bottom: 22px;
        left: 22px;
        z-index: 999;
        width: 44px;
        height: 44px;
        border-radius: 50%;
        background: var(--nlfb-blue-dark);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        visibility: hidden;
        transition: 0.25s;
    }
    .back-to-top.show {
        opacity: 1;
        visibility: visible;
    }
    .navbar {
        display: block;
    }


    @media (max-width: 767.98px) {
      .navbar-brand img {
          max-width: 300px;
      }

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

        .hero {
            padding: 3rem 0 4rem;
            text-align: center;
        }
        .liver-orb {
            margin-top: 0rem;
             max-width: 285px;
        }
        .panel-body {
            padding: 1.6rem;
        }
        .donate-strip {
            padding: 1.6rem;
        }
        .support-banner {
            text-align: center;
            padding: 2.2rem 1.4rem;
        }

        .mobile-logo a img {
          max-width: 290px;
      }
      .navbar {
          display: none;
      }



    }








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

.mobile-header {
    height: 65px;
    background: #ffffff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 10px;
    border-bottom: 1px solid #eeeeee;
}

.mobile-logo a {
    text-decoration: none;
    color: #111111;

    font-size: 22px;
    font-weight: 700;
}

.mobile-menu-toggle {
    width: 42px;
    height: 42px;

    border: 0;
    background: #111111;
    color: #ffffff;

    border-radius: 5px;

    font-size: 18px;

    cursor: pointer;
}


/* =========================
   OVERLAY
========================= */

.mobile-menu-overlay {
    position: fixed;

    top: 0;
    left: 0;

    width: 100%;
    height: 100%;

    background: rgba(0, 0, 0, 0.45);

    opacity: 0;
    visibility: hidden;

    transition: all 0.3s ease;

    z-index: 9998;
}

.mobile-menu-overlay.active {
    opacity: 1;
    visibility: visible;
}


/* =========================
   MOBILE SIDEBAR
========================= */

.mobile-sidebar {
    position: fixed;

    top: 0;
    right: -320px;

    width: 320px;
    max-width: 90%;

    height: 100vh;

    background: #ffffff;

    z-index: 9999;

    overflow-y: auto;

    transition: right 0.35s ease;
}

.mobile-sidebar.active {
    right: 0;
}


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

.mobile-sidebar-header {
    height: 70px;

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

    padding: 0 20px;

    border-bottom: 1px solid #eeeeee;
}

.mobile-sidebar-logo a {
    color: #111111;

    text-decoration: none;

    font-size: 21px;
    font-weight: 700;
}

.mobile-menu-close {
    width: 38px;
    height: 38px;

    border: 0;

    background: #f1f1f1;

    color: #111111;

    border-radius: 5px;

    font-size: 18px;

    cursor: pointer;
}


/* =========================
   MENU
========================= */

.mobile-navigation {
    padding: 10px 0 30px;
}

.mobile-menu-list,
.mobile-submenu {
    list-style: none;
    margin: 0;
    padding: 0;
}


/* =========================
   MENU LINK WRAPPER
========================= */

.mobile-menu-link-wrapper {
    display: flex;
    align-items: center;

    width: 100%;
}


/* =========================
   MAIN LINK
========================= */

.mobile-menu-link,
.mobile-menu-link-wrapper > a {
    flex: 1;

    display: block;

    padding: 14px 20px;

    color: #222222;

    text-decoration: none;

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

    transition: background 0.2s ease,
                color 0.2s ease;
}

.mobile-menu-link:hover,
.mobile-menu-link-wrapper > a:hover {
    background: #f7f7f7;
    color: #007bff;
}


/* =========================
   PLUS / MINUS BUTTON
========================= */

.submenu-toggle {
    width: 50px;
    height: 48px;

    border: 0;

    background: transparent;

    color: #555555;

    cursor: pointer;

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

    font-size: 13px;

    flex-shrink: 0;
}

.submenu-toggle:hover {
    color: #007bff;
}


/* =========================
   SUBMENU
========================= */

.mobile-submenu {
    display: none;

    background: #fafafa;

    border-left: 2px solid #eeeeee;
}


/* =========================
   SUBMENU LINK
========================= */

.mobile-submenu li {
    border-bottom: 1px solid #eeeeee;
}

.mobile-submenu a {
    display: block;

    padding: 12px 20px 12px 35px;

    color: #444444;

    text-decoration: none;

    font-size: 14px;

    transition: all 0.2s ease;
}

.mobile-submenu a:hover {
    background: #f1f1f1;

    color: #007bff;

    padding-left: 40px;
}


/* =========================
   LEVEL 2
========================= */

.mobile-submenu .mobile-submenu {
    background: #f4f4f4;

    border-left: 2px solid #dddddd;
}

.mobile-submenu .mobile-submenu a {
    padding-left: 50px;
}


/* =========================
   LEVEL 3
========================= */

.mobile-submenu .mobile-submenu .mobile-submenu {
    background: #eeeeee;
}

.mobile-submenu .mobile-submenu .mobile-submenu a {
    padding-left: 65px;
}


/* =========================
   OPEN STATE
========================= */

.has-submenu.open > .mobile-menu-link-wrapper .submenu-toggle {
    color: #007bff;
}


/* =========================
   MOBILE ONLY
========================= */

@media (min-width: 992px) {

    .mobile-header,
    .mobile-sidebar,
    .mobile-menu-overlay {
        display: none;
    }

}