:root {
    --bg: #0a0a0a;
    --surface: #111111;
    --surface-hover: #1a1a1a;
    --border: #2a2a2a;
    --text: #d4d4d4;
    --text-muted: #737373;
    --text-bright: #f5f5f5;
    --accent: #22d3ee;
    --accent-hover: #06b6d4;
    --danger: #ef4444;
    --danger-hover: #dc2626;
}

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

* {
    border-radius: 0 !important;
}

body {
    font-family: "JetBrains Mono", "Fira Code", "Cascadia Code", "Consolas", monospace;
    font-size: 14px;
    line-height: 1.7;
    font-weight: 400;
    letter-spacing: 0.01em;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-bright);
}

h1 { font-size: 24px; }
h2 { font-size: 18px; }
h3 { font-size: 16px; }

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 150ms ease;
}

a:hover {
    color: var(--accent-hover);
}

input, textarea, button {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    color: inherit;
    border-radius: 0;
}

input, textarea {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 8px 12px;
    color: var(--text);
    outline: none;
    width: 100%;
    transition: border-color 100ms ease;
}

input:focus, textarea:focus {
    border-color: var(--accent);
}

button {
    cursor: pointer;
    background: none;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 16px;
    transition: color 150ms ease, border-color 150ms ease;
}

button:hover {
    color: var(--text-bright);
    border-color: var(--text-muted);
}

/* --- Auth page --- */

.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.auth-container {
    width: 100%;
    max-width: 320px;
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.auth-site-name {
    font-size: 24px;
    color: var(--text-bright);
    text-align: center;
    margin-bottom: 16px;
}

.auth-container input {
    margin-bottom: 8px;
}

.auth-warning {
    color: var(--text-muted);
    font-size: 12px;
    margin-top: 8px;
}

.auth-error {
    color: var(--danger);
    font-size: 13px;
    min-height: 20px;
}

.btn-primary {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 10px 16px;
    width: 100%;
    cursor: pointer;
    transition: color 150ms ease, border-color 150ms ease;
}

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

.btn-primary:disabled {
    color: var(--text-muted);
    cursor: default;
}

/* --- App layout --- */

.app-page {
    display: flex;
    min-height: 100vh;
}

.hamburger {
    display: none;
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 1000;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 18px;
    padding: 6px 10px;
    line-height: 1;
}

/* --- Sidebar --- */

.sidebar {
    width: 240px;
    min-width: 240px;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    z-index: 100;
    transition: transform 150ms ease;
}

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid var(--border);
}

.sidebar-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-bright);
    letter-spacing: -0.02em;
}

.sidebar-section {
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
    flex: 0 0 auto;
}

.sidebar-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 24px;
    margin-bottom: 8px;
}

.sidebar-section-header span {
    color: var(--text-muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sidebar-section-actions {
    display: flex;
    gap: 4px;
}

.btn-icon {
    border: none;
    padding: 2px 8px;
    color: var(--text-muted);
    font-size: 16px;
    line-height: 1;
}

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

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

.nav-item {
    border-left: 3px solid transparent;
}

.nav-item a {
    display: block;
    padding: 4px 24px 4px 21px;
    color: var(--text);
    font-size: 13px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    transition: color 150ms ease;
}

.nav-item a:hover {
    color: var(--text-bright);
    background: var(--surface-hover);
}

.nav-item.active {
    border-left-color: var(--accent);
}

.nav-item.active a {
    color: var(--text-bright);
}

.nav-item.dragging {
    opacity: 0.4;
}

.nav-item a .journal-title {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
}

.nav-item a .journal-date {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
}

.sidebar-footer {
    margin-top: auto;
    padding: 16px 24px;
    border-top: 1px solid var(--border);
}

.btn-logout {
    font-size: 16px;
    padding: 4px 8px;
}

/* --- Main content --- */

.main-content {
    margin-left: 240px;
    flex: 1;
    padding: 48px 32px;
    max-width: calc(720px + 64px);
    width: 100%;
    transition: margin-left 150ms ease;
}

/* --- Editor --- */

.editor-date {
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 16px;
}

.editor-title {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-bright);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    padding: 8px 0;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
    width: 100%;
    outline: none;
}

.editor-title:focus {
    border-bottom-color: var(--accent);
}

.editor-title::placeholder {
    color: var(--text-muted);
}

.editor-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.btn-text {
    border: none;
    padding: 4px 0;
    color: var(--text-muted);
    font-size: 12px;
    background: none;
}

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

.save-indicator {
    color: var(--text-muted);
    font-size: 12px;
}

.editor-content {
    width: 100%;
    min-height: 400px;
    resize: vertical;
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 16px;
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    color: var(--text);
}

.editor-content:focus {
    border-color: var(--accent);
}

.editor-content::placeholder {
    color: var(--text-muted);
}

.editor-preview {
    padding: 16px;
    border: 1px solid var(--border);
    min-height: 400px;
    background: var(--bg);
}

.editor-footer {
    margin-top: 48px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-danger-text {
    border: none;
    padding: 4px 0;
    color: var(--text-muted);
    font-size: 12px;
    background: none;
}

.btn-danger-text:hover {
    color: var(--danger);
}

.btn-danger-text.confirming {
    color: var(--danger);
}

/* --- Empty state --- */

.empty-state {
    color: var(--text-muted);
    padding-top: 48px;
}

.empty-state .btn-add-inline {
    margin-left: 8px;
    color: var(--accent);
    font-size: 14px;
}

/* --- Markdown rendered content --- */

.markdown-body {
    color: var(--text);
    line-height: 1.7;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
    margin-top: 24px;
    margin-bottom: 8px;
}

.markdown-body p {
    margin-bottom: 16px;
}

.markdown-body a {
    color: var(--accent);
}

.markdown-body code {
    font-family: inherit;
    background: var(--surface);
    padding: 2px 6px;
    font-size: 13px;
}

.markdown-body pre {
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 16px;
    overflow-x: auto;
    margin-bottom: 16px;
}

.markdown-body pre code {
    background: none;
    padding: 0;
}

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

.markdown-body ul, .markdown-body ol {
    padding-left: 24px;
    margin-bottom: 16px;
}

.markdown-body li {
    margin-bottom: 4px;
}

.markdown-body hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 24px 0;
}

.markdown-body img {
    max-width: 100%;
}

.markdown-body table {
    border-collapse: collapse;
    width: 100%;
    margin-bottom: 16px;
}

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

.markdown-body th {
    background: var(--surface);
    color: var(--text-bright);
}

/* --- Title display (read mode) --- */

.editor-title-display {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-bright);
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

/* --- Lock indicator --- */

.lock-indicator {
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 400;
}

/* --- Calendar --- */

.journal-calendar {
    padding: 4px 16px 8px;
}

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

.calendar-month-label {
    color: var(--text);
    font-size: 13px;
}

.calendar-nav {
    border: none;
    padding: 2px 8px;
    color: var(--text-muted);
    font-size: 16px;
    background: none;
    line-height: 1;
}

.calendar-nav:hover {
    color: var(--text-bright);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
}

.calendar-day-name {
    color: var(--text-muted);
    font-size: 10px;
    padding: 4px 0;
    text-transform: uppercase;
}

.calendar-day {
    padding: 3px 0;
    font-size: 12px;
    color: var(--text-muted);
    cursor: default;
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 1.4;
}

.calendar-day.has-entry {
    color: var(--text);
    cursor: pointer;
}

.calendar-dot {
    width: 4px;
    height: 4px;
    background: var(--accent);
    margin-top: 1px;
}

.calendar-day.today {
    color: var(--text-bright);
    font-weight: 600;
}

.calendar-day.selected {
    background: var(--surface-hover);
}

.calendar-day.has-entry:hover {
    background: var(--surface-hover);
}

.journal-day-label {
    padding: 8px 24px 4px;
    font-size: 11px;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    list-style: none;
}

/* --- Delete form --- */

.delete-form {
    width: 100%;
}

.delete-note-input {
    margin-bottom: 8px;
    font-size: 13px;
}

.delete-actions {
    display: flex;
    gap: 16px;
}

/* --- Word count --- */

.word-count {
    color: var(--text-muted);
    font-size: 12px;
}

/* --- Focus mode --- */

body.focus-mode .sidebar {
    transform: translateX(-100%);
}

body.focus-mode .main-content {
    margin-left: 0;
}

body.focus-mode .hamburger {
    display: none;
}

/* --- Mobile --- */

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }

    .sidebar {
        transform: translateX(-100%);
        transition: transform 150ms ease;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
        padding: 48px 16px 32px;
    }
}