/* =====================================================
   COMMON UI STYLES
   Shared across frontend pages
   ===================================================== */

/* ── Shared Navbar (light default) ── */
.site-navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-200, #E5E7EB);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.site-navbar .nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    height: 64px;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.site-navbar .nav-brand {
    display: flex;
    align-items: center;
    flex: 0 0 auto;
    text-decoration: none;
    color: var(--gray-900, #111827);
    font-weight: 700;
    margin-right: 0.5rem;
}

.site-navbar .nav-brand img {
    width: auto;
    height: 34px;
    max-width: 190px;
    object-fit: contain;
    display: block;
}

.site-navbar .nav-links {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex: 1 1 auto;
    gap: 0.25rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.site-navbar .nav-links > li {
    position: relative;
}

.site-navbar .nav-mobile-only {
    display: none;
}

.site-navbar .nav-links a.nav-link-item {
    display: flex;
    align-items: center;
    gap: 5px;
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-600, #4B5563);
    padding: 0.5rem 0.85rem;
    border-radius: 8px;
    transition: all 0.15s;
    white-space: nowrap;
}

.site-navbar .nav-links a.nav-link-item:hover,
.site-navbar .nav-links a.nav-link-item.active {
    color: var(--primary, #2563eb);
    background: rgba(37, 99, 235, 0.06);
}

.site-navbar .nav-links a.nav-link-item i {
    font-size: 0.7rem;
}

.site-navbar .nav-dropdown {
    position: relative;
}

.site-navbar .nav-dropdown > a {
    cursor: pointer;
}

.site-navbar .nav-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 220px;
    background: #fff;
    border: 1px solid var(--gray-200, #E5E7EB);
    border-radius: 12px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
    padding: 0.5rem 0;
    margin-top: 0.25rem;
    z-index: 200;
}

.site-navbar .nav-dropdown-menu.show {
    display: block;
}

.site-navbar .nav-dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0.6rem 1rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--gray-700, #374151);
    text-decoration: none;
    transition: all 0.12s;
}

.site-navbar .nav-dropdown-menu a:hover {
    background: rgba(37, 99, 235, 0.05);
    color: var(--primary, #2563eb);
}

.site-navbar .nav-dropdown-menu a i {
    width: 18px;
    text-align: center;
    color: var(--gray-500, #6B7280);
    font-size: 0.85rem;
}

.site-navbar .nav-dropdown-menu a:hover i {
    color: var(--primary, #2563eb);
}

.site-navbar .nav-dropdown-menu .dd-divider {
    height: 1px;
    background: var(--gray-100, #F3F4F6);
    margin: 0.35rem 0;
}

.site-navbar .nav-right {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex: 0 0 auto;
    gap: 0.5rem;
    margin-left: 0.5rem;
}

.site-navbar .btn-login {
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--gray-700, #374151);
    padding: 0.45rem 1rem;
    border: 1.5px solid var(--gray-200, #E5E7EB);
    border-radius: 8px;
    transition: all 0.15s;
}

.site-navbar .btn-login:hover {
    border-color: var(--primary, #2563eb);
    color: var(--primary, #2563eb);
}

.site-navbar .btn-register {
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    background: var(--primary, #2563eb);
    color: #fff;
    padding: 0.45rem 1rem;
    border-radius: 8px;
    border: none;
    transition: all 0.15s;
}

.site-navbar .btn-register:hover {
    background: var(--primary-dark, #1d4ed8);
    color: #fff;
}

.site-navbar .user-dropdown {
    position: relative;
}

.site-navbar .user-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0.35rem 0.75rem;
    background: var(--gray-100, #F3F4F6);
    border: 1.5px solid var(--gray-200, #E5E7EB);
    border-radius: 10px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray-700, #374151);
    transition: all 0.15s;
    white-space: nowrap;
}

.site-navbar .user-toggle:hover {
    border-color: var(--primary, #2563eb);
    color: var(--primary, #2563eb);
}

.site-navbar .user-toggle .user-avatar-sm {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary, #2563eb), var(--primary-light, #3b82f6));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 700;
}

.site-navbar .user-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 200px;
    background: #fff;
    border: 1px solid var(--gray-200, #E5E7EB);
    border-radius: 12px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
    padding: 0.5rem 0;
    margin-top: 0.35rem;
    z-index: 200;
}

.site-navbar .user-dropdown-menu.show {
    display: block;
}

.site-navbar .user-dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0.6rem 1rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--gray-700, #374151);
    text-decoration: none;
    transition: all 0.12s;
}

.site-navbar .user-dropdown-menu a:hover {
    background: rgba(37, 99, 235, 0.05);
    color: var(--primary, #2563eb);
}

.site-navbar .user-dropdown-menu a i {
    width: 18px;
    text-align: center;
    color: var(--gray-500, #6B7280);
}

.site-navbar .user-dropdown-menu a:hover i {
    color: var(--primary, #2563eb);
}

.site-navbar .user-dropdown-menu .dd-divider {
    height: 1px;
    background: var(--gray-100, #F3F4F6);
    margin: 0.35rem 0;
}

.site-navbar .nav-hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.site-navbar .nav-hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--gray-700, #374151);
    transition: all 0.2s;
}

/* ── Shared Navbar Dark Look ── */
.site-navbar.site-navbar--dark {
    background: rgba(0, 0, 0, 0.86);
    backdrop-filter: saturate(180%) blur(22px);
    -webkit-backdrop-filter: saturate(180%) blur(22px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: none;
}

.site-navbar.site-navbar--dark .nav-brand,
.site-navbar.site-navbar--dark .nav-brand span {
    color: #fff;
}

.site-navbar.site-navbar--dark .nav-brand img {
    height: 32px;
}

.site-navbar.site-navbar--dark .nav-links a.nav-link-item {
    color: rgba(255, 255, 255, 0.78);
}

.site-navbar.site-navbar--dark .nav-links a.nav-link-item:hover,
.site-navbar.site-navbar--dark .nav-links a.nav-link-item.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.08);
}

.site-navbar.site-navbar--dark .nav-links a.nav-link-item i {
    color: rgba(255, 255, 255, 0.7);
}

.site-navbar.site-navbar--dark .btn-login {
    color: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 0.28);
    background: rgba(255, 255, 255, 0.04);
}

.site-navbar.site-navbar--dark .btn-login:hover {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
}

.site-navbar.site-navbar--dark .btn-register {
    background: var(--primary, #2563eb);
    color: #fff;
}

.site-navbar.site-navbar--dark .btn-register:hover {
    background: var(--primary-dark, #1d4ed8);
    color: #fff;
}

.site-navbar.site-navbar--dark .user-toggle {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.9);
}

.site-navbar.site-navbar--dark .user-toggle:hover {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.4);
}

.site-navbar.site-navbar--dark .nav-hamburger span {
    background: rgba(255, 255, 255, 0.9);
}

/* ── Navbar responsive ── */
@media (max-width: 768px) {
    .site-navbar .nav-inner {
        padding: 0 1rem;
    }

    .site-navbar .nav-brand img {
        height: 28px;
        max-width: 150px;
    }

    .site-navbar .nav-links {
        display: none;
    }

    .site-navbar .nav-links.mobile-open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: #fff;
        border-bottom: 1px solid var(--gray-200, #E5E7EB);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
        padding: 1rem;
        gap: 0.25rem;
    }

    .site-navbar .nav-mobile-only {
        display: block;
    }

    .site-navbar .nav-links.mobile-open .nav-dropdown-menu {
        position: static;
        box-shadow: none;
        border: none;
        padding-left: 1rem;
        margin-top: 0;
    }

    .site-navbar .nav-hamburger {
        display: flex;
    }

    .site-navbar .btn-login,
    .site-navbar .btn-register {
        font-size: 0.8rem;
        padding: 0.4rem 0.75rem;
    }

    .site-navbar.site-navbar--dark .nav-links.mobile-open {
        background: #0f172a;
        border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    }

    .site-navbar.site-navbar--dark .nav-links.mobile-open a.nav-link-item {
        color: rgba(255, 255, 255, 0.86);
    }

    .site-navbar.site-navbar--dark .nav-links.mobile-open a.nav-link-item:hover,
    .site-navbar.site-navbar--dark .nav-links.mobile-open a.nav-link-item.active {
        color: #fff;
        background: rgba(255, 255, 255, 0.08);
    }
}