/* ── Navigation Bar Style ── */
nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    height: 64px;
    background: linear-gradient(180deg, rgba(10, 10, 10, 0.98) 0%, rgba(10, 10, 10, 0.92) 100%);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 2px 20px rgba(255, 255, 255, 0.04);
}

.nav-logo {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #ffffff;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-logo .logo-icon {
    width: 28px;
    height: 28px;
    background: #ffffff;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: #000000;
    font-weight: 700;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
}

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

.nav-links > li > a, 
.nav-links > li > .drop-trigger {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 8px 18px;
    color: #888;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.3px;
    border-radius: 8px;
    transition: all 0.25s ease;
    cursor: pointer;
    background: none;
    border: none;
    font-family: inherit;
}

.nav-links > li > a::after, 
.nav-links > li > .drop-trigger::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 18px;
    right: 18px;
    height: 2px;
    background: #ffffff;
    border-radius: 2px;
    transform: scaleX(0);
    transition: transform 0.25s ease;
}

.nav-links > li > a:hover, 
.nav-links > li > .drop-trigger:hover {
    color: #ffffff;
}

.nav-links > li > a:hover::after, 
.nav-links > li > .drop-trigger:hover::after, 
.nav-links > li > a.active::after, 
.nav-links > li > .drop-trigger.active::after {
    transform: scaleX(1);
}

.nav-links > li > a.active, 
.nav-links > li > .drop-trigger.active {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.08);
}

.arrow {
    font-size: 10px;
    transition: transform 0.25s ease;
}

.nav-links > li:hover .arrow {
    transform: rotate(180deg);
}

.sub-menu {
    position: absolute;
    top: 100%;
    left: 0;
    list-style: none;
    min-width: 200px;
    background: rgba(15, 15, 15, 0.98);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    padding: 6px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(6px);
    transition: all 0.2s ease;
}

.nav-links > li:hover > .sub-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.sub-menu li a {
    display: block;
    padding: 10px 14px;
    color: #888;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 6px;
    transition: all 0.2s ease;
}

.sub-menu li a:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.06);
}

.sub-menu li a.active {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.08);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
    background: none;
    border: none;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: #e0e0e0;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ── Mobile Style Rules ── */
@media (max-width: 600px) {
    nav { padding: 0 20px; }
    .hamburger { display: flex; }
    
    .nav-links {
        position: fixed;
        top: 64px; left: 0; right: 0;
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(12px);
        flex-direction: column !important;
        padding: 16px 24px !important;
        gap: 4px;
        transform: translateY(-10px);
        opacity: 0;
        pointer-events: none;
        transition: all 0.3s ease;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        max-height: calc(100vh - 64px);
        overflow-y: auto;
        align-items: flex-end !important;
        text-align: right !important;
    }
    
    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }
    
    .nav-links > li {
        width: 100% !important;
        display: flex !important;
        flex-direction: column !important;
        align-items: flex-end !important;
    }
    
    .nav-links li a, 
    .nav-links li .drop-trigger {
        padding: 12px 0px !important;
        font-size: 1rem;
        width: 100% !important;
        display: flex !important;
        justify-content: flex-end !important;
        text-align: right !important;
        box-sizing: border-box;
    }
    
    .sub-menu {
        position: static !important;
        max-height: 0;
        overflow: hidden;
        padding: 0; margin: 0;
        display: flex !important;
        flex-direction: column !important;
        align-items: flex-end !important;
        width: 100% !important;
        transition: max-height 0.2s ease;
        border: none !important;
        background: transparent !important;
        box-shadow: none !important;
    }
    
    .sub-menu.mobile-open {
        max-height: 600px;
        padding: 4px 0 !important;
    }
    
    .sub-menu li {
        width: 100% !important;
        display: flex !important;
        justify-content: flex-end !important;
    }
    
    .sub-menu li a {
        padding: 8px 0px !important;
        text-align: right !important;
    }
}