:root {
    --bg: #fafaf9;
    --surface: #ffffff;
    --text: #1a1a1a;
    --text-muted: #6b6b6b;
    --text-faint: #a3a3a3;
    --accent: #1a1a1a;
    --accent-hover: #404040;
    --border: #e5e5e5;
    --border-strong: #d4d4d4;
    --danger: #b91c1c;
    --danger-bg: #fef2f2;
    --success: #166534;
    --success-bg: #f0fdf4;
    --radius: 4px;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
    --transition: 150ms ease;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0a0a0a;
        --surface: #141414;
        --text: #f5f5f5;
        --text-muted: #a3a3a3;
        --text-faint: #525252;
        --accent: #f5f5f5;
        --accent-hover: #d4d4d4;
        --border: #262626;
        --border-strong: #404040;
        --danger: #f87171;
        --danger-bg: #1f1010;
        --success: #4ade80;
        --success-bg: #0f1f10;
    }
}

* {
    box-sizing: border-box;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    margin: 0;
    line-height: 1.65;
    font-size: 16px;
    font-weight: 400;
}

a {
    color: var(--text);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition);
}

a:hover {
    border-bottom-color: var(--text);
}

.container {
    max-width: 680px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
nav {
    border-bottom: 1px solid var(--border);
    padding: 20px 0;
    margin-bottom: 48px;
}

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

.logo {
    font-weight: 600;
    color: var(--text);
    font-size: 1rem;
    letter-spacing: -0.01em;
}

.logo:hover {
    border-bottom-color: transparent;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    color: var(--text-muted);
    font-size: 0.875rem;
    padding: 6px 0;
}

.nav-link:hover {
    color: var(--text);
    border-bottom-color: var(--text);
}

.inline-form {
    display: inline;
    margin: 0;
}

/* Icon-only nav links and buttons (Bootstrap Icons) */
.nav-link.icon-link {
    display: inline-flex;
    align-items: center;
    padding: 6px 2px;
    line-height: 1;
}

.nav-link.icon-link .bi {
    font-size: 1.125rem;
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    padding: 9px 10px;
}

.icon-btn .bi {
    font-size: 1rem;
    line-height: 1;
}

/* Buttons */
button, .btn-primary, .btn-secondary, .btn-ghost {
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1;
    cursor: pointer;
    border-radius: var(--radius);
    transition: all var(--transition);
    border: 1px solid transparent;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg);
    border-color: var(--accent);
    padding: 9px 16px;
    text-decoration: none;
}

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

.btn-secondary {
    background: transparent;
    color: var(--text);
    border-color: var(--border-strong);
    padding: 9px 16px;
}

.btn-secondary:hover {
    background: var(--surface);
    border-color: var(--text);
    border-bottom-color: var(--text);
}

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    padding: 9px 12px;
    border-color: transparent;
}

.btn-ghost:hover {
    color: var(--text);
    background: transparent;
    border-color: transparent;
}

.btn-danger {
    background: transparent;
    color: var(--danger);
    border-color: var(--danger);
    padding: 9px 16px;
}

.btn-danger:hover {
    background: var(--danger);
    color: #fff;
    border-color: var(--danger);
}

.btn-full {
    width: 100%;
    padding: 12px 16px;
    margin-top: 12px;
}

/* Forms */
form input[type="text"],
form input[type="password"],
form input[type="number"],
form input[type="datetime-local"],
form input[type="file"],
form textarea {
    width: 100%;
    padding: 10px 12px;
    margin: 6px 0;
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
    font-family: inherit;
    font-size: 0.9375rem;
    transition: border-color var(--transition);
}

form input:focus,
form textarea:focus {
    outline: none;
    border-color: var(--accent);
}

form label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-top: 12px;
    margin-bottom: 4px;
    letter-spacing: 0.01em;
}

.hint {
    color: var(--text-faint);
    font-weight: 400;
}

.import-hint {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 8px;
}

textarea.editor {
    min-height: 400px;
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.9375rem;
    line-height: 1.6;
    resize: vertical;
}

/* Auth / Editor cards */
.auth-card,
.editor-wrap,
.settings-page {
    background: transparent;
}

.auth-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 32px;
    margin-bottom: 40px;
    background: var(--surface);
}

.auth-card h2 {
    margin: 0 0 20px;
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.page-title {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin: 0 0 24px;
}

.settings-card {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    margin-bottom: 20px;
    background: var(--surface);
}

.settings-card h2 {
    margin: 0 0 8px;
    font-size: 1rem;
    font-weight: 600;
}

.create-form .form-actions {
    display: flex;
    justify-content: flex-end;
    align-items: flex-end;
    gap: 12px;
    margin-top: 20px;
}

.create-form .date-field {
    margin-right: auto;
}

.create-form .date-field label {
    margin-top: 0;
}

.create-form .date-field input[type="datetime-local"] {
    width: auto;
    margin: 0;
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 24px;
    font-size: 0.875rem;
    border: 1px solid transparent;
}

.alert-error {
    background: var(--danger-bg);
    color: var(--danger);
    border-color: var(--danger);
}

.alert-success {
    background: var(--success-bg);
    color: var(--success);
    border-color: var(--success);
}

/* Posts */
.post-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.post-card {
    padding: 24px 0;
    border-bottom: 1px solid var(--border);
}

.post-card:last-child {
    border-bottom: none;
}

.post-meta {
    display: flex;
    align-items: baseline;
    gap: 12px;
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin: 0 0 10px;
    flex-wrap: wrap;
}

.post-author {
    color: var(--text);
    font-weight: 500;
}

.post-date {
    color: var(--text-faint);
}

.post-snippet {
    color: var(--text);
    font-size: 0.9375rem;
    line-height: 1.65;
}

.post-snippet-wrapper {
    position: relative;
    max-height: 300px;
    overflow: hidden;
}

.post-snippet-wrapper::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(to bottom, transparent, var(--bg));
    pointer-events: none;
}

.post-snippet > *:first-child {
    margin-top: 0;
}

.post-snippet > *:last-child {
    margin-bottom: 0;
}

.post-link {
    display: inline-block;
    margin-top: 12px;
    font-size: 0.8125rem;
    color: var(--text-muted);
    font-weight: 500;
}

.post-link:hover {
    color: var(--text);
    border-bottom-color: var(--text);
}

.empty-msg {
    color: var(--text-muted);
    text-align: center;
    padding: 48px 0;
    font-size: 0.9375rem;
}

/* Article view */
.article-view {
    padding-bottom: 80px;
}

.article-header {
    margin-bottom: 24px;
}

.markdown-body {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text);
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    line-height: 1.3;
}

.markdown-body h1 { font-size: 1.75rem; margin-top: 0; }
.markdown-body h2 { font-size: 1.375rem; }
.markdown-body h3 { font-size: 1.125rem; }

.markdown-body p {
    margin: 1em 0;
}

.markdown-body img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
}

.markdown-body a {
    border-bottom: 1px solid var(--border-strong);
}

.markdown-body a:hover {
    border-bottom-color: var(--text);
}

.markdown-body blockquote {
    border-left: 2px solid var(--border-strong);
    padding-left: 16px;
    color: var(--text-muted);
    margin: 1.2em 0;
    font-style: italic;
}

.markdown-body code {
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: 0.875em;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 2px 6px;
    border-radius: 3px;
}

.markdown-body pre {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    overflow-x: auto;
    font-size: 0.875rem;
}

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

.markdown-body ul,
.markdown-body ol {
    padding-left: 1.5em;
    margin: 1em 0;
}

.markdown-body li {
    margin: 0.25em 0;
}

.markdown-body hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2em 0;
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin: 40px 0 0;
}

.pagination-info {
    color: var(--text-faint);
    font-size: 0.8125rem;
}

.article-nav {
    margin-top: 48px;
}

.article-nav .btn-ghost {
    max-width: 45%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--border);
    margin-top: 64px;
    padding: 24px 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.footer-text {
    color: var(--text-faint);
    font-size: 0.8125rem;
}

.rss-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: 0.8125rem;
}

.rss-link:hover {
    color: var(--text);
    border-bottom-color: var(--text);
}

/* Responsive */
@media (max-width: 600px) {
    .container { padding: 0 20px; }
    nav { margin-bottom: 32px; }
    .nav-links { gap: 4px; }
    .btn-primary, .btn-secondary, .btn-ghost {
        padding: 8px 12px;
        font-size: 0.8125rem;
    }
    .auth-card { padding: 24px 20px; }
    .settings-card { padding: 24px 20px; }
    .markdown-body h1 { font-size: 1.5rem; }
}

/* EasyMDE overrides for minimalist style */
.EasyMDEContainer .CodeMirror {
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text);
}

.EasyMDEContainer .CodeMirror-focused {
    border-color: var(--accent);
}

.EasyMDEContainer .editor-toolbar {
    border: 1px solid var(--border-strong);
    border-bottom: none;
    border-radius: var(--radius) var(--radius) 0 0;
    background: var(--surface);
    opacity: 1;
}

.EasyMDEContainer .CodeMirror,
.EasyMDEContainer .editor-toolbar {
    border-color: var(--border-strong);
}

.EasyMDEContainer .editor-toolbar > * {
    color: var(--text-muted);
}

.EasyMDEContainer .editor-toolbar > .active,
.EasyMDEContainer .editor-toolbar > button:hover {
    color: var(--text);
    background: var(--bg);
}

.EasyMDEContainer .editor-toolbar .bi {
    font-size: 15px;
    line-height: 1;
}

/* EasyMDE dark mode overrides */
@media (prefers-color-scheme: dark) {
    .EasyMDEContainer .CodeMirror,
    .EasyMDEContainer .CodeMirror-fullscreen {
        background: var(--surface);
        color: var(--text);
        caret-color: var(--text);
    }

    .EasyMDEContainer .CodeMirror textarea {
        caret-color: var(--text);
    }

    .EasyMDEContainer .CodeMirror-cursor {
        border-left-color: var(--text);
    }

    .EasyMDEContainer .CodeMirror-selected,
    .EasyMDEContainer .CodeMirror-focused .CodeMirror-selected,
    .EasyMDEContainer .CodeMirror-line::selection,
    .EasyMDEContainer .CodeMirror-line > span::selection,
    .EasyMDEContainer .CodeMirror-line > span > span::selection {
        background: var(--border-strong);
    }

    .EasyMDEContainer .CodeMirror-gutters {
        background: var(--surface);
        border-right-color: var(--border);
    }

    .EasyMDEContainer .CodeMirror-linenumber {
        color: var(--text-faint);
    }

    .EasyMDEContainer .editor-toolbar.fullscreen {
        background: var(--surface);
    }

    .EasyMDEContainer .editor-toolbar.fullscreen::before {
        background: linear-gradient(to right, var(--surface) 0, rgba(20, 20, 20, 0) 100%);
    }

    .EasyMDEContainer .editor-toolbar.fullscreen::after {
        background: linear-gradient(to left, var(--surface) 0, rgba(20, 20, 20, 0) 100%);
    }

    .EasyMDEContainer .editor-preview {
        background: var(--surface);
    }

    .EasyMDEContainer .editor-preview pre {
        background: var(--bg);
    }

    .EasyMDEContainer .editor-preview table td,
    .EasyMDEContainer .editor-preview table th {
        border-color: var(--border);
    }

    .EasyMDEContainer .cm-s-easymde .cm-header {
        color: var(--text);
    }

    .EasyMDEContainer .cm-s-easymde .cm-attribute {
        color: #c792ea;
    }

    .EasyMDEContainer .cm-s-easymde .cm-string {
        color: #addb67;
    }

    .EasyMDEContainer .cm-s-easymde .cm-link {
        color: #82aaff;
    }

    .EasyMDEContainer .cm-s-easymde .cm-url,
    .EasyMDEContainer .cm-s-easymde .cm-quote {
        color: var(--text-muted);
    }
}