@font-face {
    font-family: 'Noto Serif SC';
    src: url('../assets/fonts/Noto_Serif_SC/NotoSerifSC-Regular.ttf') format('truetype');
    font-weight: 400;
}
@font-face {
    font-family: 'Noto Serif SC';
    src: url('../assets/fonts/Noto_Serif_SC/NotoSerifSC-SemiBold.ttf') format('truetype');
    font-weight: 600;
}
@font-face {
    font-family: 'Noto Serif SC';
    src: url('../assets/fonts/Noto_Serif_SC/NotoSerifSC-Bold.ttf') format('truetype');
    font-weight: 700;
}
@font-face {
    font-family: 'Brass Mono';
    src: url('../assets/fonts/BrassMono/BrassMono-Regular.ttf') format('truetype');
    font-weight: 400;
}
@font-face {
    font-family: 'Brass Mono';
    src: url('../assets/fonts/BrassMono/BrassMono-Bold.ttf') format('truetype');
    font-weight: 700;
}

:root {
    --bg-main: #141311;
    --bg-sidebar: #141311;
    --bg-workspace: #1c1b18;
    --bg-hover: #26241f;
    --fg-main: #d6d1c4;
    --fg-muted: #8c877d;
    --accent: #e6b450;
    --accent-red: #d08770;
    --border: #2b2822;
    --destructive: #cc5555;
    --font-text: 'Noto Serif SC', serif;
    --font-ui: 'Brass Mono', monospace;
    --content-max-width: 900px;
}

[data-theme="light"] {
    --bg-main: #e8e5dc;
    --bg-sidebar: #e8e5dc;
    --bg-workspace: #f5f3ed;
    --bg-hover: #dfdbce;
    --fg-main: #3b372e;
    --fg-muted: #7c776b;
    --accent: #d08770;
    --accent-red: #c05050;
    --border: #d4d0c4;
    --destructive: #b54040;
}

[data-theme="obsidian"] {
    --bg-main: #121212;
    --bg-sidebar: #121212;
    --bg-workspace: #1e1e1e;
    --bg-hover: #2a2a2a;
    --fg-main: #dcddde;
    --fg-muted: #8b8b8b;
    --accent: #7d5cf2;
    --accent-red: #f38ba8;
    --border: #2d2d2d;
    --destructive: #e05252;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    border-radius: 0 !important;
    text-transform: lowercase !important;
    scrollbar-width: none !important;
    -ms-overflow-style: none !important;
}

*::-webkit-scrollbar {
    display: none !important;
    width: 0 !important;
    height: 0 !important;
}

body {
    background: var(--bg-main);
    color: var(--fg-main);
    font-family: var(--font-text);
    height: 100vh;
    overflow: hidden;
    line-height: 1.8;
}

a {
    color: var(--accent) !important;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

body.has-bg-canvas {
    background: transparent;
}

#bg-fx-root {
    background: transparent;
}

#bg-canvas {
    display: block;
}

.app-layout {
    display: flex;
    height: 100vh;
    width: 100vw;
    background: var(--bg-main);
    padding: 0;
    gap: 0;
}

body.has-bg-canvas .app-layout {
    background: transparent;
}

.sidebar {
    background: var(--bg-sidebar);
    display: flex;
    flex-direction: column;
    width: 280px;
    flex-shrink: 0;
    border: none;
    border-right: 1px solid var(--border);
    overflow: hidden;
}

.nav-tree {
    flex: 1;
    overflow-y: auto;
    padding: 20px 10px;
    font-family: var(--font-ui);
    font-size: 13px;
}

.nav-item {
    padding: 6px 10px;
    cursor: pointer;
    color: var(--fg-muted);
    display: flex;
    align-items: center;
    user-select: none;
    transition: background 0.1s, color 0.1s;
    gap: 8px;
    margin-bottom: 2px;
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--fg-main);
}

.nav-item.active {
    color: var(--accent);
    background: var(--bg-hover);
    font-weight: bold;
}

.nav-children {
    padding-left: 14px;
    margin-left: 7px;
    display: none;
    border-left: 1px solid var(--border);
}

.nav-children.expanded {
    display: block;
}

.nav-chevron {
    display: inline-block;
    width: 14px;
    font-size: 11px;
    color: var(--fg-muted);
    text-align: center;
}

.sidebar-bottom-actions {
    display: flex;
    padding: 20px;
    gap: 20px;
    align-items: center;
    border: none;
    border-top: 1px solid var(--border);
}

.action-btn {
    cursor: pointer;
    color: var(--fg-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
    background: transparent;
    border: none;
    padding: 0;
}

.action-btn:hover {
    color: var(--accent);
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    background: var(--bg-workspace);
    overflow: hidden;
}

body.has-bg-canvas .main-content {
    background: transparent;
}

.top-bar {
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-workspace);
    min-height: 60px;
}

.breadcrumbs {
    font-family: var(--font-ui);
    font-size: 12px;
    color: var(--fg-muted);
    display: flex;
    gap: 10px;
    justify-content: center;
    align-items: center;
}

.crumb-link {
    cursor: pointer;
    transition: color 0.15s;
}

.crumb-link:hover {
    color: var(--accent);
}

.workspace-frame {
    flex: 1;
    width: 100%;
    height: 100%;
    border: none;
    background: transparent;
}

.page-content {
    flex: 1;
    overflow-y: auto;
    padding: 40px 60px 100px 60px;
    max-width: var(--content-max-width);
    margin: 0 auto;
    width: 100%;
}

.markdown-body h1 {
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.markdown-body h2 {
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.markdown-body h3 {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}

.markdown-body p {
    margin-bottom: 1rem;
    line-height: 1.8;
    font-size: 1rem;
}

.markdown-body p:last-child {
    margin-bottom: 0;
}

.markdown-body a {
    color: var(--accent) !important;
    text-decoration: none;
}

.markdown-body a:hover {
    text-decoration: underline;
}

.markdown-body ul {
    list-style-type: disc !important;
    margin-left: 20px !important;
    margin-bottom: 1.5rem !important;
    line-height: 1.8;
}

.markdown-body ol {
    list-style-type: decimal !important;
    margin-left: 20px !important;
    margin-bottom: 1.5rem !important;
    line-height: 1.8;
}

.markdown-body li {
    margin-bottom: 0.5rem !important;
    display: list-item !important;
}

.markdown-body code {
    font-family: var(--font-ui);
    background: var(--bg-hover);
    padding: 2px 6px;
    font-size: 0.85em;
    border: 1px solid var(--border);
}

.markdown-body img {
    max-width: 100%;
    display: block;
    margin: 10px 0;
    border: 1px solid var(--border);
}

.markdown-body blockquote {
    border-left: 3px solid var(--accent);
    padding-left: 16px;
    color: var(--fg-muted);
    margin-bottom: 1rem;
}

.announcement-toast {
    width: 340px;
    background: var(--bg-sidebar);
    border: 1px solid var(--accent);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    overflow: hidden;
    pointer-events: auto;
    position: relative;
}

.announcement-title {
    font-family: var(--font-ui);
    font-size: 11px;
    text-transform: uppercase;
    color: var(--accent);
    letter-spacing: 1px;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.announcement-body {
    font-size: 13px;
    line-height: 1.6;
    color: var(--fg-main);
}

.announcement-body p {
    margin-bottom: 0.4rem;
}

.announcement-body a {
    color: var(--accent) !important;
    text-decoration: underline;
}

.announcement-progress-track {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--border);
}

.announcement-progress {
    height: 2px;
    background: var(--accent);
    width: 100%;
    transform-origin: left;
}

.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal-box {
    background: var(--bg-sidebar);
    border: 1px solid var(--border);
    padding: 30px;
    width: 480px;
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
    font-family: var(--font-ui);
}

.modal-title {
    font-size: 14px;
    font-weight: bold;
    color: var(--accent);
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 10px;
    text-transform: lowercase;
    letter-spacing: 1px;
}

.ui-input {
    width: 100%;
    background: var(--bg-main);
    border: 1px solid var(--border);
    color: var(--fg-main);
    padding: 10px 14px;
    margin-bottom: 16px;
    font-family: inherit;
    font-size: 12px;
    outline: none;
}

.ui-input:focus {
    border-color: var(--accent);
}

.ui-btn {
    background: var(--bg-hover);
    border: 1px solid var(--border);
    color: var(--fg-main);
    padding: 10px 16px;
    cursor: pointer;
    font-family: inherit;
    font-size: 12px;
    width: 100%;
    margin-bottom: 10px;
    font-weight: 600;
    transition: all 0.15s ease;
}

.ui-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.settings-group {
    margin-bottom: 20px;
}

.settings-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--fg-muted);
    font-size: 11px;
    text-transform: lowercase;
    letter-spacing: 1px;
}

.modal-close {
    background: none;
    border: 1px solid var(--border);
    color: var(--fg-muted);
    cursor: pointer;
    width: 100%;
    padding: 10px;
    margin-top: 10px;
    font-family: inherit;
    font-size: 12px;
}

.modal-close:hover {
    color: var(--fg-main);
    border-color: var(--fg-main);
}

.profile-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 20px;
    padding: 16px;
    background: var(--bg-main);
    border: 1px solid var(--border);
}

.profile-name {
    font-size: 16px;
    font-weight: bold;
    color: var(--accent);
}

.profile-id {
    font-size: 11px;
    color: var(--fg-muted);
    margin-top: 4px;
    font-family: var(--font-ui);
}

.admin-user-card {
    background: var(--bg-hover);
    border: 1px solid var(--border);
    padding: 16px;
    margin-bottom: 12px;
    font-family: var(--font-ui);
    font-size: 12px;
}

.admin-user-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.user-tag {
    font-size: 10px;
    padding: 2px 6px;
    border: 1px solid var(--border);
    margin-left: 6px;
}

.user-tag.admin { border-color: var(--accent); color: var(--accent); }
.user-tag.banned { border-color: var(--destructive); color: var(--destructive); }

.flat-list-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.flat-list-item {
    padding-bottom: 20px;
    border-bottom: 1px dashed var(--border);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.flat-list-item:last-child {
    border-bottom: none;
}

.flat-title {
    font-size: 18px;
    font-weight: bold;
    color: var(--accent);
    text-decoration: none;
    line-height: 1.4;
}

.flat-desc {
    font-size: 14px;
    color: var(--fg-main);
    line-height: 1.8;
}

.flat-desc p {
    margin-bottom: 0.7rem;
}

.flat-desc p:last-child {
    margin-bottom: 0;
}

.flat-meta {
    font-size: 12px;
    color: var(--fg-muted);
    font-family: var(--font-ui);
}

.admin-tab-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.admin-tab-btn {
    width: auto;
    margin: 0;
    padding: 9px 16px;
    background: var(--bg-main);
    border: 1px solid var(--border);
    color: var(--fg-muted);
    font-family: var(--font-ui);
    font-size: 11px;
    text-transform: lowercase;
    letter-spacing: 0.5px;
    cursor: pointer;
}

.admin-tab-btn:hover {
    color: var(--fg-main);
    border-color: var(--fg-muted);
}

.admin-tab-btn.active {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--bg-hover);
}

.admin-section-title {
    font-size: 22px;
    font-weight: 400;
    color: var(--fg-main);
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 1px dashed var(--border);
}

.admin-card {
    background: var(--bg-hover);
    border: 1px solid var(--border);
    padding: 18px 20px;
    margin-bottom: 14px;
}

.admin-card-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.post-id-btn {
    cursor: pointer;
    color: var(--fg-muted);
    font-size: 12px;
    font-family: var(--font-ui);
    background: none;
    border: none;
    padding: 0;
    width: auto;
    margin: 0;
}

.post-id-btn:hover {
    color: var(--accent);
    text-decoration: underline;
}

.copy-toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: var(--bg-main);
    padding: 10px 20px;
    font-family: var(--font-ui);
    font-size: 12px;
    font-weight: bold;
    z-index: 999;
    opacity: 0;
    transition: opacity 0.2s;
}

.copy-toast.show {
    opacity: 1;
}

h1, h2, h3, h4 {
    font-family: var(--font-text);
    font-weight: 400;
    text-transform: lowercase;
    letter-spacing: 0;
    color: var(--fg-main);
}

h1 { font-size: 2.2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.2rem; }
h4 { font-size: 1.05rem; }

.markdown-body > *:first-child,
body > div > h1:first-child {
    margin-top: 0 !important;
}

.admin-only-note {
    font-size: 12px;
    color: var(--fg-muted);
    border: 1px dashed var(--border);
    padding: 14px 16px;
    margin-bottom: 24px;
}