/* --- HEADER & NAVBAR STYLES --- */
header {
    background-color: #ffffff;
    color: var(--text-dark, #222222);
    padding: 12px 4%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    /* border-bottom-left-radius: 15px;
    border-bottom-right-radius: 15px; */
}
html {
    scroll-behavior: smooth;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    height: 60px;
}

.logo-text h1 {
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-navy, #0b132b);
    line-height: 1.1;
}

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

nav ul {
    display: flex;
    list-style: none;
    gap: 24px;
    font-size: 14px;
    font-weight: 500;
}

nav a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}

nav a:hover {
    color: var(--accent-orange, #d9531e);
}

.nav-actions {
    display: flex;
    gap: 12px;
}

.btn {
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    transition: 0.3s ease;
    border: none;
    font-family: 'Inter', sans-serif;
}

.btn-donate {
    background-color: #b31b1b;
    color: #fff;
}

.btn-join {
    background-color: transparent;
    color: var(--primary-navy, #0b132b);
    border: 1px solid var(--primary-navy, #0b132b);
}

/* Hamburger Toggle Button */
.hamburger {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--primary-navy, #0b132b);
    cursor: pointer;
    padding: 5px;
}

/* TABLET & MOBILE RESPONSIVE NAV (<= 992px) */
    @media (max-width: 992px) {
    .hamburger {
        display: block;
    }

    nav {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: #ffffff;
        flex-direction: column;
        padding: 20px 5%;
        box-shadow: 0 10px 15px rgba(0,0,0,0.1);
        border-top: 1px solid #eee;
        gap: 20px;
        opacity: 0;
        pointer-events: none;
        transform: translateY(-14px);
        transition: opacity 300ms cubic-bezier(.22,.61,.36,1), transform 300ms cubic-bezier(.22,.61,.36,1);
    }

    nav.active {
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
    }

    nav ul {
        flex-direction: column;
        width: 100%;
        text-align: center;
        gap: 16px;
    }

    nav ul li,
    .nav-actions {
        opacity: 0;
        transform: translateY(-8px);
        transition: opacity 300ms cubic-bezier(.22,.61,.36,1), transform 300ms cubic-bezier(.22,.61,.36,1);
    }

    nav.active ul li,
    nav.active .nav-actions {
        opacity: 1;
        transform: translateY(0);
    }

    nav.active ul li:nth-child(1) { transition-delay: 0ms; }
    nav.active ul li:nth-child(2) { transition-delay: 50ms; }
    nav.active ul li:nth-child(3) { transition-delay: 100ms; }
    nav.active ul li:nth-child(4) { transition-delay: 150ms; }
    nav.active ul li:nth-child(5) { transition-delay: 200ms; }
    nav.active ul li:nth-child(6) { transition-delay: 250ms; }
    nav.active .nav-actions { transition-delay: 300ms; }

    .nav-actions {
        flex-direction: column;
        width: 100%;
        gap: 10px;
    }

    .nav-actions .btn {
        width: 100%;
        justify-content: center;
    }
}