/**
 * Lampira AI - Sidebar Component
 * Sidebar, navigation, chat history, and sign-in section
 */

/* ============ Mobile Menu Button ============ */
.mobile-menu-btn {
    display: none;
    position: fixed;
    top: 16px;
    left: 16px;
    width: 40px;
    height: 40px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    cursor: pointer;
    z-index: var(--z-menu-btn);
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.mobile-menu-btn:hover {
    background: var(--color-bg-primary);
}

.mobile-menu-btn:active {
    transform: scale(0.95);
}

.mobile-menu-btn svg {
    width: 20px;
    height: 20px;
    color: var(--color-text-primary);
}

/* ============ Sidebar ============ */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--color-bg-sidebar);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    padding: 12px 10px;
    flex-shrink: 0;
    transition: width var(--transition-normal), padding var(--transition-normal), transform var(--transition-normal);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: var(--z-sidebar);
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
    padding: 12px 8px;
    overflow: hidden;
}

.sidebar.collapsed .sidebar-header {
    justify-content: center;
    padding: 4px 0;
}

.sidebar.collapsed .logo span,
.sidebar.collapsed .logo-text {
    display: none;
}

.sidebar.collapsed .collapse-btn {
    display: none;
}

.sidebar.collapsed .nav-item span,
.sidebar.collapsed .nav-item-text {
    display: none;
}

.sidebar.collapsed .nav-item {
    justify-content: center;
    padding: 8px;
}

.sidebar.collapsed .nav-divider {
    margin: 10px 4px;
}

.sidebar.collapsed .sign-in-section {
    display: none;
}

.sidebar.collapsed .chat-history {
    display: none;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4px 6px;
    margin-bottom: 8px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 18px;
    font-weight: 500;
    color: #111111;
    text-decoration: none;
}

.logo-icon {
    width: 20px;
    height: 20px;
}

.collapse-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    color: #78716c;
    display: flex;
    align-items: center;
    justify-content: center;
}

.collapse-btn:hover {
    background-color: #e7e5e4;
}

/* ============ Navigation ============ */
.nav-section {
    display: flex;
    flex-direction: column;
    gap: 1px;
    flex: 1;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: 6px;
    text-decoration: none;
    color: #57534e;
    font-size: 15px;
    font-weight: 400;
    transition: background-color 0.15s ease;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    position: relative;
}

.nav-item:hover {
    background-color: #dedcda;
}

.nav-item.active {
    background-color: #d4d2d0;
    color: #111111;
}

.nav-item svg {
    width: 16px;
    height: 16px;
    color: #78716c;
    flex-shrink: 0;
}

.nav-divider {
    height: 1px;
    background-color: #d8d6d4;
    margin: 10px 6px;
}

/* Nav Item Image Generation Active State */
.nav-item-image-gen.active {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

/* ============ Chat History ============ */
.chat-history {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-bottom: 8px;
}

.chat-history-item {
    font-size: 14px;
    position: relative;
    padding-right: 32px;
}

.chat-history-title {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}

.chat-delete-btn {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    width: 24px;
    height: 24px;
    border: none;
    background: transparent;
    color: #78716c;
    cursor: pointer;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

.chat-history-item:hover .chat-delete-btn {
    opacity: 1;
}

.chat-delete-btn:hover {
    background-color: #dc2626;
    color: #ffffff;
}

.chat-delete-btn.confirm {
    opacity: 1;
    background-color: #dc2626;
    color: #ffffff;
    animation: pulse-delete 1s ease infinite;
}

@keyframes pulse-delete {

    0%,
    100% {
        transform: translateY(-50%) scale(1);
    }

    50% {
        transform: translateY(-50%) scale(1.1);
    }
}

.chat-delete-btn svg {
    width: 14px;
    height: 14px;
}

/* ============ Sign In ============ */
.sign-in-section {
    margin-top: auto;
    padding-top: 10px;
    border-top: 1px solid #d8d6d4;
}

.sign-in-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    text-decoration: none;
    color: #44403c;
    font-size: 14px;
    font-weight: 400;
    background: none;
    border: none;
    cursor: pointer;
    width: 100%;
    transition: background-color 0.15s ease;
}

.sign-in-btn:hover {
    background-color: #e7e5e4;
}

.sign-in-btn svg {
    width: 16px;
    height: 16px;
    color: #78716c;
}

/* Collapsed sign-in button */
.sign-in-collapsed {
    display: none;
    margin-top: auto;
    padding-top: 10px;
}

.sidebar.collapsed .sign-in-collapsed {
    display: block;
}

.sign-in-btn-collapsed {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    border-radius: 6px;
    background: none;
    border: none;
    cursor: pointer;
    width: 100%;
    color: #78716c;
    transition: background-color 0.15s ease;
}

.sign-in-btn-collapsed:hover {
    background-color: #dedcda;
}

.sign-in-btn-collapsed svg {
    width: 16px;
    height: 16px;
}

/* ============ Sidebar Responsive ============ */
@media (max-width: 768px) {

    /* Mobile menu button visible */
    .mobile-menu-btn {
        display: flex;
    }

    /* Sidebar as overlay drawer */
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        width: var(--sidebar-width);
        z-index: var(--z-sidebar);
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
        box-shadow: none;
    }

    .sidebar.open {
        transform: translateX(0);
        box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15);
    }

    /* Remove collapsed state on mobile - use open/close instead */
    .sidebar.collapsed {
        width: var(--sidebar-width);
        padding: 12px 10px;
        transform: translateX(-100%);
    }

    /* Hide collapse button on mobile */
    .collapse-btn {
        display: none;
    }
}

/* Extra small devices */
@media (max-width: 480px) {
    .mobile-menu-btn {
        top: 12px;
        left: 12px;
        width: 36px;
        height: 36px;
    }
}