/* ==========================================================================
   SPC Navigation Bar & Drawer Styles
   ========================================================================== */
.navbar {
    background-color: var(--surface, #ffffff);
    border-bottom: 2px solid var(--border-light, #e2e8f0);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    position: relative;
}

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

.brand-logo {
    height: 48px;
    width: auto;
    object-fit: contain;
    display: block;
    flex-shrink: 0;
}

.brand-text h1 {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--brand-blue, #1e3a8a);
    line-height: 1.15;
    margin: 0;
}

.brand-text p {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--brand-blue, #1e3a8a);
    margin: 0;
    opacity: 0.9;
}

.nav-links {
    display: flex;
    gap: 1.2rem;
    list-style: none;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-link {
    text-decoration: none;
    color: var(--text-muted, #475569);
    font-size: 0.92rem;
    font-weight: 600;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--brand-blue, #1e3a8a);
}

.nav-cta {
    background-color: var(--brand-orange, #ea580c);
    color: #ffffff !important;
    padding: 0.5rem 1.1rem;
    border-radius: 6px;
    font-size: 0.88rem;
    font-weight: 700;
    text-decoration: none;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.nav-cta:hover {
    background-color: #c25e0f;
}

/* মেম্বার পোর্টাল বাটন (ডেস্কটপ) */
.nav-member-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background-color: #059669;
    color: #ffffff !important;
    padding: 0.45rem 0.95rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 700;
    text-decoration: none;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.nav-member-btn:hover {
    background-color: #047857;
    transform: translateY(-1px);
}

.nav-member-btn.logged-in {
    background-color: #047857;
}

/* ছোট অ্যাডমিন লক আইকন (ডেস্কটপ) */
.nav-admin-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 6px;
    background: #f1f5f9;
    color: #64748b;
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid #e2e8f0;
}

.nav-admin-icon:hover {
    background: #e2e8f0;
    color: #1e3a8a;
}

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

/* ==========================================================================
   Mobile Responsive Drawer & Animations
   ========================================================================== */
@media (max-width: 820px) {
    .nav-wrap {
        height: 62px;
    }

    .brand-logo {
        height: 42px;
    }

    .brand-text h1 {
        font-size: 1rem;
    }

    .brand-text p {
        font-size: 0.68rem;
    }

    .mobile-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        background: transparent;
        border: none;
        color: var(--brand-blue, #1e3a8a);
        cursor: pointer;
        padding: 0.5rem;
        transition: transform 0.2s ease;
    }

    .mobile-toggle:active {
        transform: scale(0.9);
    }

    .mobile-toggle svg,
    .menu-close-btn svg {
        pointer-events: none;
    }

    /* সাইড ড্রয়ার মেনু */
    .nav-menu {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: 0;
        right: -310px;
        width: 285px;
        height: 100vh;
        background-color: #ffffff;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.15);
        z-index: 9999;
        padding: 1.5rem 1.6rem;
        transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
        overflow-y: auto;
    }

    .nav-menu.active {
        right: 0 !important;
    }

    /* ড্রয়ার হেডার */
    .nav-menu-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding-bottom: 0.9rem;
        margin-bottom: 1.5rem;
        border-bottom: 1px solid #f1f5f9;
        opacity: 0;
        transform: translateY(-8px);
        transition: opacity 0.3s ease, transform 0.3s ease;
    }

    .nav-menu.active .nav-menu-header {
        opacity: 1;
        transform: translateY(0);
        transition-delay: 0.1s;
    }

    .nav-menu-title {
        font-size: 1.15rem;
        font-weight: 800;
        color: var(--brand-navy, #0f172a);
    }

    .menu-close-btn {
        background: #f8fafc;
        border: 1px solid #e2e8f0;
        border-radius: 50%;
        width: 36px;
        height: 36px;
        display: flex;
        align-items: center;
        justify-content: center;
        color: #475569;
        cursor: pointer;
        transition: all 0.25s ease;
    }

    .menu-close-btn:hover {
        background: #e2e8f0;
        color: #0f172a;
        transform: rotate(90deg);
    }

    .nav-links {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        width: 100%;
    }

    .nav-links li {
        width: 100%;
        opacity: 0;
        transform: translateX(25px);
        transition: opacity 0.35s ease, transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .nav-link {
        display: block;
        width: 100%;
        font-size: 1.05rem;
        font-weight: 600;
        padding: 0.65rem 0.8rem;
        border-radius: 8px;
        color: var(--brand-navy, #0f172a);
        transition: background-color 0.2s ease, transform 0.2s ease, color 0.2s ease;
    }

    .nav-link:hover {
        background-color: #f1f5f9;
        color: var(--brand-orange, #ea580c);
        transform: translateX(4px);
    }

    .nav-cta {
        display: block;
        text-align: center;
        width: 100%;
        margin-top: 0.6rem;
        padding: 0.7rem 1rem;
        border-radius: 8px;
        box-shadow: 0 4px 12px rgba(234, 88, 12, 0.25);
    }

    .nav-member-btn {
        width: 100%;
        justify-content: center;
        padding: 0.7rem 1rem;
        font-size: 0.95rem;
        margin-top: 0.4rem;
    }

    .nav-admin-icon {
        width: 100%;
        height: 42px;
        margin-top: 0.4rem;
        font-size: 0.9rem;
        gap: 6px;
    }
    
    .nav-admin-icon::after {
        content: " Admin Panel";
        font-weight: 600;
        font-family: 'Hind Siliguri', 'Inter', sans-serif;
    }

    .nav-menu.active .nav-links li:nth-child(1) { opacity: 1; transform: translateX(0); transition-delay: 0.10s; }
    .nav-menu.active .nav-links li:nth-child(2) { opacity: 1; transform: translateX(0); transition-delay: 0.15s; }
    .nav-menu.active .nav-links li:nth-child(3) { opacity: 1; transform: translateX(0); transition-delay: 0.20s; }
    .nav-menu.active .nav-links li:nth-child(4) { opacity: 1; transform: translateX(0); transition-delay: 0.25s; }
    .nav-menu.active .nav-links li:nth-child(5) { opacity: 1; transform: translateX(0); transition-delay: 0.30s; }
    .nav-menu.active .nav-links li:nth-child(6) { opacity: 1; transform: translateX(0); transition-delay: 0.35s; }
    .nav-menu.active .nav-links li:nth-child(7) { opacity: 1; transform: translateX(0); transition-delay: 0.40s; }
    .nav-menu.active .nav-links li:nth-child(8) { opacity: 1; transform: translateX(0); transition-delay: 0.45s; }

    .nav-overlay {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(15, 23, 42, 0.5);
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
        z-index: 9998;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.35s ease, visibility 0.35s ease;
    }

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