/* Left Navigation Menu - Premium Design */
.left-nav {
    position: fixed;
    left: 24px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 16px;
    z-index: 900;
    background: black;
    padding: 16px 12px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.notification-btn,
.nav-btn {
    position: relative;
    background: transparent;
    color: var(--secondary);
    font-size: 20px;
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-btn:active {
    transform: translateY(0) scale(0.95);
}

.nav-btn.active,
.nav-btn.active i {
    color: white;
}


.nav-btn i {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.nav-btn:hover i {
    transform: scale(1.1);
}

/* Tooltips */
.nav-btn::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%) translateX(10px);
    background: var(--primary);
    color: var(--background);
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    margin-left: 10px;
}

.nav-btn::before {
    content: '';
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%) translateX(6px);
    border-width: 6px;
    border-style: solid;
    border-color: transparent var(--primary) transparent transparent;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    margin-left: 10px;
    pointer-events: none;
}

.nav-btn:hover::after,
.nav-btn:hover::before {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(0);
}

/* Responsive - hide on mobile */
@media (max-width: 768px) {
    .left-nav {
        display: none;
    }
}

/* Dropdown Menu Styles */
.nav-dropdown-container {
    position: relative;
}

.nav-dropdown-menu {
    position: absolute;
    left: 100%;
    bottom: 0;
    transform: translateX(10px) scale(0.95);
    background: #2c2f32;
    border-radius: 16px;
    min-width: 200px;
    padding: 8px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: bottom left;
    z-index: 1000;
    margin-left: 20px;
}

.nav-dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(0) scale(1);
}

.nav-dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--primary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    width: 100%;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 10px;
    transition: all 0.2s ease;
    box-sizing: border-box;
}

.nav-dropdown-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--primary);
}

.nav-dropdown-item i {
    font-size: 18px;
    width: 24px;
    text-align: center;
    color: var(--secondary);
    transition: color 0.2s ease;
}

.nav-dropdown-item:hover i {
    color: var(--primary);
}

.nav-dropdown-divider {
    height: 1px;
    background: var(--border);
    margin: 8px 0;
    opacity: 0.5;
}

/* Logout button specific styles */
.danger,
.nav-dropdown-item.logout-btn {
    color: #ff4444;
    font-weight: 600;
}

.danger:hover,
.nav-dropdown-item.logout-btn:hover {
    background: rgba(255, 68, 68, 0.1);
    color: #ff6666;
}

.nav-dropdown-item.logout-btn i {
    color: #ff4444;
}

.nav-dropdown-item.logout-btn:hover i {
    color: #ff6666;
}

.logout-btn form {
    margin: 0;
    width: 100%;
}

/* Expandable Create Menu */
.nav-create-container {
    position: relative;
    display: flex;
    align-items: center;
}

.horizontal-expand-menu {
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%) translateX(10px) scale(0.9);
    display: flex;
    gap: 8px;
    background: #000;
    padding: 6px;
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: left center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    margin-left: 15px;
}

.nav-create-container.expanded .horizontal-expand-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(0) scale(1);
}

.expand-item {
    background: transparent;
    color: var(--secondary);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.2s ease;
}

.expand-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    transform: scale(1.1);
}

.create-trigger i {
    transition: transform 0.3s ease;
}

.nav-create-container.expanded .create-trigger i {
    transform: rotate(45deg);
    color: white;
}

/* Tooltips for expand items */
.expand-item {
    position: relative;
}

.expand-item::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    background: var(--primary);
    color: var(--background);
    padding: 4px 8px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    pointer-events: none;
    margin-bottom: 8px;
}

.expand-item:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}