:root {
    --bg-body: #ffffff;
    --bg-sidebar: #fafafa;
    --border: #ebebeb;
    --border-light: #f4f4f4;
    --text-main: #171717;
    --text-muted: #737373;
    --text-subtle: #a3a3a3;
    --item-hover: #f3f3f2;
    --item-active: #ececec;
    --accent: #0284c7;
    --accent-light: #e0f2fe;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    display: flex;
    height: 100vh;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Sidebar */
aside {
    width: 290px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    height: 100vh;
    user-select: none;
}

.sidebar-header {
    padding: 16px 18px 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--accent);
}

.brand-title {
    font-size: 13.5px;
    font-weight: 600;
    color: var(--text-main);
    letter-spacing: -0.01em;
}

.nav-tabs {
    display: flex;
    padding: 0 14px 10px;
    gap: 6px;
}

.nav-tab-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 6px 10px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    border: 1px solid var(--border);
    background: #ffffff;
    border-radius: 6px;
    text-decoration: none;
    transition: all 0.15s ease;
    cursor: pointer;
}

.nav-tab-btn:hover {
    background: var(--item-hover);
    color: var(--text-main);
}

.nav-tab-btn.active {
    background: var(--item-active);
    color: var(--text-main);
    border-color: #d4d4d4;
    font-weight: 600;
}

.search-container {
    padding: 0 14px 12px;
}

.search-input {
    width: 100%;
    padding: 6px 10px 6px 28px;
    font-size: 12.5px;
    background: #ffffff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%23a3a3a3'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z'%3E%3C/path%3E%3C/svg%3E") no-repeat 8px center;
    background-size: 14px;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-main);
    outline: none;
    transition: all 0.15s ease;
}

.search-input:focus {
    border-color: #d4d4d4;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.tree-scroll {
    flex: 1;
    overflow-y: auto;
    padding: 4px 8px 24px;
}

.tree-scroll::-webkit-scrollbar {
    width: 4px;
}

.tree-scroll::-webkit-scrollbar-thumb {
    background: #e5e5e5;
    border-radius: 4px;
}

/* Itens da Árvore de Pastas */
.folder-item {
    margin-bottom: 1px;
}

.nav-folder-btn {
    width: 100%;
    background: none;
    border: none;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 8px;
    border-radius: 5px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    cursor: pointer;
    text-align: left;
    transition: background-color 0.1s ease;
}

.nav-folder-btn:hover {
    background-color: var(--item-hover);
    color: var(--text-main);
}

.chevron {
    width: 13px;
    height: 13px;
    color: var(--text-subtle);
    transition: transform 0.15s ease;
    flex-shrink: 0;
}

.rotate-90 {
    transform: rotate(90deg);
}

.icon-folder {
    width: 15px;
    height: 15px;
    color: var(--text-subtle);
    flex-shrink: 0;
}

.folder-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.folder-contents {
    position: relative;
}

.folder-contents::before {
    content: '';
    position: absolute;
    top: 2px;
    bottom: 2px;
    left: 17px;
    width: 1px;
    background-color: var(--border);
}

/* Links de Documentos */
.nav-doc-link {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 5px 8px;
    border-radius: 5px;
    font-size: 13px;
    color: #404040;
    text-decoration: none;
    margin-bottom: 1px;
    transition: all 0.1s ease;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nav-doc-link:hover {
    background-color: var(--item-hover);
    color: var(--text-main);
}

.nav-doc-link.active {
    background-color: var(--item-active);
    color: var(--text-main);
    font-weight: 500;
}

.icon-doc {
    width: 14px;
    height: 14px;
    color: var(--text-subtle);
    flex-shrink: 0;
}

.nav-doc-link.active .icon-doc {
    color: var(--accent);
}

.doc-title {
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Área de Conteúdo */
main {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    background-color: var(--bg-body);
}

header {
    height: 48px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    background: #ffffff;
}

.breadcrumb {
    font-size: 12.5px;
    color: var(--text-subtle);
    display: flex;
    align-items: center;
    gap: 6px;
}

.breadcrumb-active {
    color: var(--text-muted);
    font-weight: 500;
}

.htmx-indicator {
    display: none;
    font-size: 12px;
    color: var(--accent);
}

.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator {
    display: inline-block;
}

.content-scroll {
    flex: 1;
    overflow-y: auto;
    padding: 48px 40px 80px;
}

.content-wrapper {
    max-width: 740px;
    margin: 0 auto;
}

/* Markdown Minimalista e Legível */
.markdown-body {
    color: #262626;
    line-height: 1.75;
    font-size: 15px;
}

.markdown-body h1 {
    font-size: 1.95rem;
    font-weight: 600;
    color: #171717;
    margin-bottom: 1.2rem;
    letter-spacing: -0.02em;
    line-height: 1.3;
}

.markdown-body h2 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #171717;
    margin-top: 2.2rem;
    margin-bottom: 0.75rem;
    letter-spacing: -0.015em;
}

.markdown-body h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: #262626;
    margin-top: 1.6rem;
    margin-bottom: 0.5rem;
}

.markdown-body p {
    margin-bottom: 1.25rem;
}

.markdown-body ul, .markdown-body ol {
    margin-bottom: 1.25rem;
    padding-left: 1.4rem;
}

.markdown-body li {
    margin-bottom: 0.3rem;
}

.markdown-body hr {
    border: 0;
    border-top: 1px solid var(--border);
    margin: 2.2rem 0;
}

.markdown-body a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.markdown-body blockquote {
    border-left: 3px solid #d4d4d4;
    padding: 4px 16px;
    color: var(--text-muted);
    margin: 1.4rem 0;
}

.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 13.5px;
}

.markdown-body th, .markdown-body td {
    border: 1px solid var(--border);
    padding: 8px 12px;
    text-align: left;
}

.markdown-body th {
    background-color: #fafafa;
    font-weight: 500;
    color: #171717;
}

.markdown-body tr:nth-child(even) {
    background-color: #fafafa;
}

.markdown-body pre {
    background-color: #f7f7f7;
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 14px;
    overflow-x: auto;
    margin: 1.4rem 0;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
}

.markdown-body code {
    font-family: 'JetBrains Mono', monospace;
    background-color: #f3f3f2;
    padding: 2px 5px;
    border-radius: 4px;
    font-size: 12.5px;
    color: #171717;
}

.markdown-body pre code {
    background: transparent;
    padding: 0;
}

.search-results-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-subtle);
    padding: 6px 8px;
}