/* =========================================================
   PTN Manual Generator - 主样式
   ========================================================= */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --bg: #f5f7fb;
    --surface: #ffffff;
    --border: #e2e8f0;
    --text: #1e293b;
    --text-muted: #64748b;
    --success: #16a34a;
    --warning: #f59e0b;
    --danger: #dc2626;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
}

* { box-sizing: border-box; }
html, body {
    margin: 0; padding: 0;
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 15px;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; }

/* Layout */
.app-header {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}
.app-header .brand {
    font-size: 19px;
    font-weight: 600;
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 8px;
}
.app-header .brand a { color: #ffffff !important; }
.app-header .user-menu {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 14px;
}
.app-header .user-menu a { color: #ffffff; }
.app-header .user-menu a:hover { color: var(--primary-light); text-decoration: none; }
.app-header .user-menu a.btn,
.app-header .user-menu a.btn-primary,
.app-header .user-menu a.btn-primary:hover { color: #ffffff; }
.app-header .user-menu span.text-muted { color: rgba(255,255,255,0.7); }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}
.container.narrow { max-width: 880px; }

/* Sidebar layout for admin */
.admin-layout {
    display: flex;
    min-height: calc(100vh - 60px);
}
.admin-sidebar {
    width: 220px;
    background: var(--surface);
    border-right: 1px solid var(--border);
    padding: 20px 0;
}
.admin-sidebar .menu-item {
    display: block;
    padding: 11px 20px;
    color: var(--text);
    border-left: 3px solid transparent;
    font-size: 15px;
    transition: all .15s;
}
.admin-sidebar .menu-item:hover {
    background: var(--bg);
    text-decoration: none;
}
.admin-sidebar .menu-item.active {
    background: var(--primary-light);
    color: var(--primary-dark);
    border-left-color: var(--primary);
    font-weight: 600;
}
.admin-sidebar .menu-group {
    padding: 8px 20px 4px;
    font-size: 12px;
    text-transform: uppercase;
    color: var(--text-muted);
    letter-spacing: .5px;
    margin-top: 12px;
}
.admin-main {
    flex: 1;
    padding: 24px 32px;
    overflow: auto;
}

/* Cards */
.card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    margin-bottom: 20px;
}
.card-title {
    font-size: 18px;
    font-weight: 600;
    margin: 0 0 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
}

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 6px;
    font-size: 15px;
    font-size: 14px;
    color: var(--text);
}
.form-group .help {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}
.form-control {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 15px;
    font-family: inherit;
    background: var(--surface);
    transition: border-color .15s;
}
.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .15);
}
textarea.form-control { resize: vertical; min-height: 80px; }
select.form-control { cursor: pointer; }
.form-row { display: flex; gap: 16px; }
.form-row > * { flex: 1; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 18px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    border-radius: 6px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    font-family: inherit;
    transition: all .15s;
    text-decoration: none;
}
.btn:hover { background: var(--bg); text-decoration: none; }
.btn-primary {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: white; }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-lg { padding: 12px 24px; font-size: 16px; }
.btn-danger {
    background: var(--danger);
    color: white;
    border-color: var(--danger);
}
.btn-danger:hover { background: #b91c1c; border-color: #b91c1c; color: white; }
.btn-success { background: var(--success); color: white; border-color: var(--success); }
.btn-success:hover { background: #15803d; }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 16px; }
.btn-block { width: 100%; }
.btn:disabled, .btn.disabled { opacity: .5; cursor: not-allowed; }

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    border-radius: var(--radius);
    overflow: hidden;
}
.table th, .table td {
    text-align: left;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
    font-size: 14px;
}
.table th {
    background: #f8fafc;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .3px;
}
.table tr:last-child td { border-bottom: 0; }
.table tr:hover td { background: #fafbfc; }

/* Badges */
.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 500;
    background: #e2e8f0;
    color: var(--text-muted);
}
.badge-primary { background: var(--primary-light); color: var(--primary-dark); }
.badge-success { background: #dcfce7; color: var(--success); }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-danger  { background: #fee2e2; color: var(--danger); }

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 14px;
    border: 1px solid;
}
.alert-success { background: #dcfce7; color: #14532d; border-color: #bbf7d0; }
.alert-danger  { background: #fee2e2; color: #7f1d1d; border-color: #fecaca; }
.alert-warning { background: #fef3c7; color: #78350f; border-color: #fde68a; }
.alert-info    { background: #dbeafe; color: #1e3a8a; border-color: #bfdbfe; }

/* Step / wizard */
.steps {
    display: flex;
    align-items: center;
    margin-bottom: 24px;
    padding: 16px 0;
    flex-wrap: wrap;
    gap: 6px;
}
.step {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 13px;
    color: var(--text-muted);
}
.step.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}
.step.done {
    background: #dcfce7;
    color: var(--success);
    border-color: #bbf7d0;
}
.step .num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(255,255,255,.25);
    font-size: 12px;
    font-weight: 600;
}
.step:not(.active):not(.done) .num { background: var(--border); }
.step .arrow { color: var(--border); }

/* Page heading */
.page-title {
    font-size: 26px;
    font-weight: 600;
    margin: 0 0 8px;
}
.page-subtitle {
    color: var(--text-muted);
    font-size: 15px;
    margin: 0 0 24px;
}

/* Section checkbox list */
.section-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.section-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 14px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    cursor: pointer;
    transition: all .15s;
}
.section-item:hover { border-color: var(--primary); background: #fafbff; }
.section-item.selected { border-color: var(--primary); background: var(--primary-light); }
.section-item input[type="checkbox"] { margin-top: 4px; }
.section-item .info { flex: 1; }
.section-item .name { font-weight: 500; font-size: 14px; }
.section-item .desc { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.section-item .type-badge { display: inline-block; padding: 1px 6px; border-radius: 3px; background: #f1f5f9; color: var(--text-muted); font-size: 10px; margin-top: 4px; }

/* Form actions */
.form-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    margin-top: 24px;
}
.form-actions.left { justify-content: space-between; }

/* Drop zone */
.dropzone {
    border: 2px dashed var(--border);
    border-radius: 8px;
    padding: 32px;
    text-align: center;
    cursor: pointer;
    transition: all .15s;
    background: #fafbfc;
    color: var(--text-muted);
}
.dropzone:hover, .dropzone.dragover {
    border-color: var(--primary);
    background: var(--primary-light);
    color: var(--primary-dark);
}
.dropzone input[type="file"] { display: none; }

/* Image preview grid */
.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 10px;
    margin-top: 12px;
}
.preview-item {
    position: relative;
    aspect-ratio: 1;
    background: var(--bg);
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--border);
}
.preview-item img { width: 100%; height: 100%; object-fit: cover; }
.preview-item .remove {
    position: absolute;
    top: 4px; right: 4px;
    width: 22px; height: 22px;
    background: rgba(0,0,0,.6);
    color: white;
    border: 0;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
}
.preview-item .cap-input {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    border: 0;
    background: rgba(0,0,0,.6);
    color: white;
    font-size: 11px;
    padding: 4px 6px;
    border-radius: 0;
}

/* List editor */
.list-editor { display: flex; flex-direction: column; gap: 8px; }
.list-row { display: flex; gap: 8px; align-items: center; }
.list-row .form-control { flex: 1; }
.list-row .btn { flex: 0 0 auto; }

/* Panel editor */
.panel-group {
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 14px;
    margin-bottom: 10px;
    background: #fafbfc;
}
.panel-group .panel-row { display: flex; gap: 8px; margin-bottom: 8px; }
.panel-group .panel-row .form-control { flex: 1; }

/* Login */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea, #764ba2);
}
.login-card {
    background: var(--surface);
    border-radius: 12px;
    padding: 40px;
    width: 380px;
    box-shadow: 0 20px 60px rgba(0,0,0,.3);
}
.login-card h1 { margin: 0 0 8px; font-size: 22px; }
.login-card .sub { color: var(--text-muted); margin: 0 0 24px; font-size: 14px; }

/* Review */
.review-section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 16px 20px;
    margin-bottom: 12px;
}
.review-section h3 {
    margin: 0 0 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 16px;
}
.review-section h3 .actions { display: flex; gap: 6px; }
.review-content { color: var(--text); font-size: 14px; }
.review-content img { max-width: 240px; border-radius: 4px; margin: 6px 0; }

/* TOC list */
.toc-list { padding-left: 24px; }
.toc-list li { padding: 4px 0; font-size: 14px; }

/* Misc */
.text-muted { color: var(--text-muted); }
.text-right { text-align: right; }
.text-center { text-align: center; }
.mt-1 { margin-top: 8px; } .mt-2 { margin-top: 16px; } .mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; } .mb-2 { margin-bottom: 16px; } .mb-3 { margin-bottom: 24px; }
.flex { display: flex; gap: 12px; align-items: center; }
.flex-1 { flex: 1; }
.hidden { display: none; }

/* Editor overrides */
.CodeMirror { border-radius: 6px; border-color: var(--border) !important; }
.editor-toolbar { border-color: var(--border) !important; border-radius: 6px 6px 0 0; }

/* Pagination */
.pagination { display: flex; gap: 4px; list-style: none; padding: 0; margin: 16px 0; justify-content: center; }
.pagination li a, .pagination li span {
    display: inline-block;
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-size: 14px;
    background: var(--surface);
    text-decoration: none;
}
.pagination li.active span { background: var(--primary); color: white; border-color: var(--primary); }
.pagination li.disabled span { color: var(--border); }

/* Responsive */
@media (max-width: 768px) {
    .form-row { flex-direction: column; gap: 0; }
    .admin-layout { flex-direction: column; }
    .admin-sidebar { width: 100%; padding: 10px 0; }
    .admin-main { padding: 16px; }
    .container { padding: 16px; }
    .steps { font-size: 11px; }
    .step { padding: 4px 8px; }
}