/* --- Header --- */
.top-header {
    display: flex;
    align-items: center;
    padding: 2px 5px;
    border-bottom: 1px solid var(--color-border);
    background-color: var(--color-bg-alt);
    gap: 4px;
    justify-content: flex-start;
}

.second-header {
    display: flex;
    align-items: center;
    padding: 0;
    border-bottom: 1px solid var(--color-border);
    background-color: #F9F9F9;
    gap: 4px;
    position: sticky;
    top: 0;
    z-index: 99;
}

.header-btn {
    font-size: 1.4em;
    padding: 2px 4px;
    border: none;
    background-color: transparent;
}

.header-btn:hover:not(:disabled) {
    background-color: var(--color-border);
}

/* --- Project Dropdown --- */
.project-dropdown {
    flex-grow: 1;
    max-width: 450px;
}

.project-dropdown-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    padding: 6px 12px;
    width: 100%;
    justify-content: space-between;
}

.dropdown-arrow {
    font-size: 0.8em;
    transition: transform 0.2s ease;
}

.project-dropdown-content {
    display: none;
    position: absolute;
    left: 0;
    top: calc(100% + 5px);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    z-index: 100;
    min-width: 250px;
    padding: 6px;
    width: 100%;
    max-width: 400px;
    box-sizing: border-box;
}

.project-dropdown-content.show {
    display: block;
}

.project-list {
    list-style: none;
}

.project-list li {
    padding: 8px 10px;
    border-radius: 5px;
    cursor: pointer;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.project-list li:before {
    color: var(--color-text-alt);
    font-weight: bold;
}

.project-list li.active {
    background-color: #F0F0F0;
}

.project-list li:hover {
    background-color: #F5F5F5;
}

.project-list li[data-project-id="inbox"]:before {
    content: '📥';
    font-weight: normal;
}

#special-project-list li[data-project-id="completed"] {
    font-weight: 500;
}

#special-project-list li[data-project-id="completed"]:before {
    color: var(--color-text-alt);
    font-weight: bold;
}

.project-divider {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: 4px 0;
}


#add-project-btn,
#import-project-btn {
    width: 100%;
    text-align: left;
    color: var(--color-text-alt);
    background: transparent;
    border: none;
    padding: 8px 10px;
    margin-top: 4px;
    font-family: inherit;
    font-size: 1em;
}

#add-project-btn:hover,
#import-project-btn:hover {
    color: var(--color-text);
    background-color: var(--color-bg-alt);
}


/* --- Project Emoji Bar --- */
.project-emoji-bar {
    display: none;
    flex-grow: 1;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0 0px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.project-emoji-item {
    font-size: 1.2em;
    padding: 4px 6px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    font-family: 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji', sans-serif;
}

.project-emoji-item:hover {
    background-color: var(--color-border);
}

.project-emoji-item.active {
    background-color: var(--color-selection);
    color: var(--color-text);
    border: 3px solid black;
}

/* --- Logic to toggle between dropdown and emoji bar --- */
.second-header .project-emoji-bar {
    display: none;
}

.second-header .project-dropdown {
    display: block;
}

.second-header #edit-project-btn {
    display: block;
}

.second-header.emoji-nav-active .project-emoji-bar {
    display: flex;
}

.second-header.emoji-nav-active .project-dropdown {
    display: none;
}

.second-header.emoji-nav-active #edit-project-btn {
    display: none;
}

.project-emoji-item.drag-over {
    background-color: var(--color-accent);
    color: white;
    transform: scale(1.2);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

#toggle-drag-mode-btn {
    display: none;
}

#toggle-drag-mode-btn.active {
    background-color: var(--color-accent);
    color: white;
}

@media (max-width: 768px) {
    #toggle-drag-mode-btn {
        display: block;
    }
}