/* ========================================
   CMCS Studio 后台管理 — 终端暗色风格
   与博客保持一致配色体系
   ======================================== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --bg:       #0d1117;
    --surface:  #161b22;
    --border:   #30363d;
    --text:     #c9d1d9;
    --muted:    #8b949e;
    --accent:   #3fb950;
    --accent-dim: rgba(63,185,80,0.12);
    --red:      #f85149;
    --orange:   #d2991d;
    --radius: 6px;
    --font-mono: 'SF Mono', 'Cascadia Code', 'Fira Code', 'Consolas', 'Monaco', monospace;
    --font-sans: system-ui, -apple-system, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

body::before {
    content: '';
    position: fixed; inset: 0; pointer-events: none; z-index: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.012) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.012) 1px, transparent 1px);
    background-size: 40px 40px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: #5cdb6e; }

/* ===== Header ===== */
.admin-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}
.admin-header h1 {
    font-size: 0.9rem;
    font-weight: 600;
    font-family: var(--font-mono);
    color: var(--text);
}
.admin-header h1::before { content: '# '; color: var(--accent); }
.admin-header nav { display: flex; gap: 20px; }
.admin-header nav a {
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--muted);
    transition: color 0.15s;
}
.admin-header nav a:hover { color: var(--accent); }
.admin-header nav a.danger { color: var(--red); }
.admin-header nav a.danger:hover { opacity: 0.8; }

/* ===== Container ===== */
.container { max-width: 1100px; margin: 0 auto; padding: 28px 24px; position: relative; z-index: 1; }

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 8px 18px;
    border-radius: 4px;
    font-size: 0.82rem;
    font-family: var(--font-mono);
    font-weight: 500;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
}
.btn-primary { background: var(--accent); color: #0d1117; border-color: var(--accent); }
.btn-primary:hover { background: #5cdb6e; }
.btn-secondary { background: var(--surface); color: var(--text); border-color: var(--border); }
.btn-secondary:hover { border-color: var(--muted); }
.btn-danger { background: var(--red); color: #fff; border-color: var(--red); }
.btn-danger:hover { background: #ff6b6b; }
.btn-sm { padding: 5px 12px; font-size: 0.75rem; }

/* ===== Dashboard ===== */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}
.toolbar h2 {
    font-size: 1.2rem;
    font-family: var(--font-mono);
    color: var(--text);
}
.toolbar h2::before { content: '// '; color: var(--accent); }

/* 搜索栏 */
.toolbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}
.search-form {
    display: flex;
    align-items: center;
    gap: 6px;
}
.search-input {
    padding: 6px 12px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    width: 220px;
    transition: border-color 0.15s;
}
.search-input:focus { outline: none; border-color: var(--accent); }
.search-input::placeholder { color: #484f58; }

/* 统计卡片 */
.stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 18px;
    text-align: center;
}
.stat-num {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text);
    line-height: 1.2;
}
.stat-label {
    font-size: 0.72rem;
    color: var(--muted);
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.stat-published .stat-num { color: var(--accent); }
.stat-draft .stat-num { color: var(--orange); }

/* 排序链接 */
.sort-link {
    color: var(--muted);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: color 0.15s;
}
.sort-link:hover { color: var(--accent); }

/* 匹配徽章 */
.highlight-badge {
    display: inline-block;
    padding: 1px 6px;
    background: var(--accent-dim);
    color: var(--accent);
    border-radius: 3px;
    font-size: 0.65rem;
    font-family: var(--font-mono);
    margin-left: 6px;
    vertical-align: middle;
}

.posts-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}
.posts-table th {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--muted);
    padding: 12px 16px;
    text-align: left;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
}
.posts-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    font-size: 0.88rem;
}
.posts-table tr:last-child td { border-bottom: none; }
.posts-table tr:hover td { background: rgba(63,185,80,0.03); }

.status-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 3px;
    font-size: 0.72rem;
    font-family: var(--font-mono);
    font-weight: 500;
}
.status-published { background: rgba(63,185,80,0.12); color: var(--accent); border: 1px solid rgba(63,185,80,0.25); }
.status-draft { background: rgba(210,153,29,0.12); color: var(--orange); border: 1px solid rgba(210,153,29,0.25); }

.actions { display: flex; gap: 8px; }

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--muted);
    font-family: var(--font-mono);
}

/* ===== Form Card (new-post / edit-post) ===== */
.form-card {
    max-width: 900px;
    margin: 0 auto;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
}
.form-card h2 {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: var(--text);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}
.form-card h2::before { content: '## '; color: var(--accent); }

.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--muted);
    margin-bottom: 6px;
}
.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-size: 0.9rem;
    font-family: var(--font-mono);
    transition: border-color 0.15s;
}
.form-group textarea {
    min-height: 420px;
    resize: vertical;
    line-height: 1.6;
    font-family: var(--font-mono);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(63,185,80,0.15);
}
.form-group select { cursor: pointer; }
.form-group select option { background: var(--surface); color: var(--text); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-actions { display: flex; gap: 10px; margin-top: 24px; }

/* Markdown 预览 */
.preview-area {
    display: none;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 20px;
    margin-top: 10px;
    line-height: 1.8;
}
.preview-area.show { display: block; }
.preview-area h1, .preview-area h2, .preview-area h3 { color: var(--accent); margin: 16px 0 8px; }
.preview-area p { margin: 8px 0; }
.preview-area code { background: var(--surface); padding: 2px 6px; border-radius: 3px; font-size: 0.9em; color: var(--orange); }
.preview-area pre { background: var(--surface); border: 1px solid var(--border); padding: 16px; border-radius: 4px; overflow-x: auto; }
.preview-area pre code { background: none; padding: 0; border: none; }
.preview-area img { max-width: 100%; border-radius: 4px; }
.preview-area blockquote { border-left: 3px solid var(--accent); padding-left: 16px; margin: 12px 0; color: var(--muted); background: rgba(63,185,80,0.05); padding: 8px 16px; border-radius: 0 4px 4px 0; }
.preview-area ul, .preview-area ol { padding-left: 24px; margin: 8px 0; }

/* ===== Login Page ===== */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.login-container {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px;
    width: 100%;
    max-width: 400px;
    position: relative;
    z-index: 1;
}
.login-container h1 {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    text-align: center;
    margin-bottom: 6px;
    color: var(--text);
}
.login-container h1::before { content: '$ '; color: var(--accent); }
.login-container > p {
    text-align: center;
    color: var(--muted);
    font-size: 0.82rem;
    font-family: var(--font-mono);
    margin-bottom: 28px;
}
.login-container .form-group input {
    background: var(--bg);
}
.login-container .btn {
    width: 100%;
    padding: 10px;
    font-size: 0.9rem;
    margin-top: 4px;
}
.login-error {
    background: rgba(248,81,73,0.1);
    border: 1px solid rgba(248,81,73,0.25);
    color: var(--red);
    padding: 10px 14px;
    border-radius: 4px;
    margin-bottom: 18px;
    font-size: 0.82rem;
    font-family: var(--font-mono);
    text-align: center;
}
.login-back {
    display: block;
    text-align: center;
    color: var(--muted);
    margin-top: 20px;
    font-size: 0.8rem;
    font-family: var(--font-mono);
}
.login-back:hover { color: var(--text); }

/* 保存成功提示 */
.flash-success {
    background: rgba(63, 185, 80, 0.1);
    border: 1px solid rgba(63, 185, 80, 0.3);
    color: var(--accent);
    padding: 10px 16px;
    border-radius: var(--radius);
    margin-bottom: 20px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
}
.flash-success::before { content: '✔ '; }

/* 设置页分组标题 */
.form-card h3 {
    font-family: var(--font-mono);
    color: var(--accent);
    font-size: 0.85rem;
    margin: 20px 0 12px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 8px;
}

/* 设置页 textarea */
.form-card textarea {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 0.82rem;
    resize: vertical;
    min-height: 60px;
    transition: border-color 0.15s;
}
.form-card textarea:focus { outline: none; border-color: var(--accent); }

/* 响应式 */
@media (max-width: 640px) {
    .form-row { grid-template-columns: 1fr; }
    .admin-header { padding: 0 16px; }
    .container { padding: 20px 16px; }
    .form-card { padding: 20px; }
}