/* ════════════════════════════════════════════════
   长篇网文写作工作台 — 样式表
   深色主题 + 毛玻璃 + 微动画
   ════════════════════════════════════════════════ */

:root {
    --bg-base: #0b0e17;
    --bg-surface: #111827;
    --bg-elevated: #1a2035;
    --bg-glass: rgba(17, 24, 39, 0.72);
    --border-glass: rgba(255, 255, 255, 0.06);

    --text-primary: #e8ecf4;
    --text-secondary: #8b95a8;
    --text-muted: #525e73;

    --accent: #6366f1;
    --accent-hover: #818cf8;
    --accent-dim: rgba(99, 102, 241, 0.15);
    --accent-glow: rgba(99, 102, 241, 0.35);

    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --shadow-sm: 0 1px 3px rgba(0,0,0,.3);
    --shadow-md: 0 4px 16px rgba(0,0,0,.4);
    --shadow-lg: 0 8px 32px rgba(0,0,0,.5);

    --font-sans: 'Inter', 'Noto Sans SC', -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', 'Consolas', monospace;

    --topbar-h: 56px;
    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-base);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    background-image:
        radial-gradient(ellipse 80% 60% at 50% -10%, rgba(99,102,241,.08), transparent),
        radial-gradient(ellipse 60% 50% at 80% 90%, rgba(139,92,246,.06), transparent);
}

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

/* ─── Glass ─── */
.glass {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

/* ─── 页面控制 ─── */
.page { display: none; }
.page.active { display: flex; flex-direction: column; }
.view { display: none; }
.view.active { display: block; }

/* 登录页：flex 列布局，不允许滚动 */
#login-page {
    height: 100vh;
    overflow: hidden;
}

/* 主页：回到普通 block 布局 */
#main-page.active {
    display: block;
}

/* ════════════════ 登录页 ════════════════ */
.login-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    min-height: 0;
}

.login-card {
    width: 100%;
    max-width: 400px;
    padding: 36px 32px 28px;
    animation: fadeSlideUp 0.6s ease-out;
}

.login-logo {
    text-align: center;
    margin-bottom: 24px;
}

.logo-icon {
    font-size: 40px;
    display: block;
    margin-bottom: 8px;
    filter: drop-shadow(0 0 20px var(--accent-glow));
}

.login-logo h1 {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 4px;
}

/* ─── 表单 ─── */
.form-group {
    margin-bottom: 18px;
    flex: 1;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-dim);
}

.form-group textarea { resize: vertical; }

.form-row {
    display: flex;
    gap: 16px;
}

.error-msg {
    color: var(--danger);
    font-size: 0.82rem;
    min-height: 22px;
    margin-bottom: 8px;
    text-align: center;
}

/* ─── 按钮 ─── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 4px 20px var(--accent-glow);
    transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid rgba(255,255,255,0.08);
}
.btn-ghost:hover {
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
}

.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-full { width: 100%; }

/* ════════════════ 顶栏 ════════════════ */
.topbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: var(--topbar-h);
    display: flex;
    align-items: center;
    padding: 0 24px;
    z-index: 100;
    border-radius: 0;
    border-top: none;
    border-left: none;
    border-right: none;
    border-bottom: 1px solid var(--border-glass);
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon-sm { font-size: 22px; }

.topbar-title {
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: -0.02em;
}

.topbar-nav {
    display: flex;
    gap: 4px;
    margin-left: 40px;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 8px 16px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.nav-btn:hover {
    background: rgba(255,255,255,0.05);
    color: var(--text-primary);
}

.nav-btn.active {
    background: var(--accent-dim);
    color: var(--accent-hover);
}

.nav-icon { font-size: 1rem; }

.topbar-right {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-badge {
    font-size: 0.8rem;
    color: var(--text-secondary);
    padding: 4px 10px;
    background: rgba(255,255,255,0.04);
    border-radius: 20px;
}

/* ════════════════ 内容区 ════════════════ */
.content-area {
    padding: calc(var(--topbar-h) + 24px) 28px 40px;
    max-width: 1280px;
    margin: 0 auto;
}

.view-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.view-header h2 {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* ─── 统计卡片 ─── */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    padding: 20px;
    text-align: center;
    transition: transform var(--transition), box-shadow var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-hover);
    font-variant-numeric: tabular-nums;
}

.stat-value.stat-danger { color: var(--danger); }

/* ─── 区块卡片 ─── */
.section-card {
    padding: 24px;
    margin-bottom: 20px;
}

.section-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

/* ─── 表格 ─── */
.table-wrapper { overflow-x: auto; }

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    text-align: left;
    padding: 10px 14px;
    font-size: 0.85rem;
    border-bottom: 1px solid rgba(255,255,255,0.04);
}

th {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

td { color: var(--text-primary); }

tr:hover td { background: rgba(255,255,255,0.02); }

.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }

/* ════════════════ 材料包 ════════════════ */
.packet-layout {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 20px;
    align-items: start;
}

.packet-form-area { padding: 24px; }
.packet-result-area {
    padding: 24px;
    min-height: 500px;
    position: relative;
}

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

.result-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.result-output {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.7;
    color: var(--text-secondary);
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 700px;
    overflow-y: auto;
    padding: 16px;
    background: rgba(0,0,0,.2);
    border-radius: var(--radius-md);
}

.result-output.has-content { color: var(--text-primary); }

/* ════════════════ 检索 ════════════════ */
.search-layout { display: flex; flex-direction: column; gap: 20px; }

.search-bar { padding: 20px 24px; }

.search-input-row {
    display: flex;
    gap: 10px;
    align-items: center;
}

.search-input-row input[type="text"] {
    flex: 1;
    padding: 10px 16px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.95rem;
    outline: none;
}
.search-input-row input[type="text"]:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-dim);
}

.search-input-row select,
.search-input-row input[type="number"] {
    padding: 10px 12px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.85rem;
    outline: none;
}

.search-input-row input[type="number"] { width: 60px; text-align: center; }

.search-results {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.search-result-card {
    padding: 20px 24px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    transition: border-color var(--transition), transform var(--transition);
}

.search-result-card:hover {
    border-color: rgba(99,102,241,0.3);
    transform: translateX(3px);
}

.result-meta {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.result-tag {
    display: inline-block;
    padding: 2px 8px;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 20px;
    background: var(--accent-dim);
    color: var(--accent-hover);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.result-score {
    font-size: 0.7rem;
    color: var(--success);
    font-weight: 600;
}

.result-text {
    font-size: 0.88rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* ════════════════ Toast ════════════════ */
#toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column-reverse;
    gap: 8px;
}

.toast {
    padding: 12px 20px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.85rem;
    box-shadow: var(--shadow-lg);
    animation: toastIn 0.3s ease-out;
    max-width: 360px;
}

.toast.toast-error { border-left: 3px solid var(--danger); }
.toast.toast-success { border-left: 3px solid var(--success); }

/* ─── Loading ─── */
.loading-spinner {
    display: inline-block;
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.1);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

/* ─── 动画 ─── */
@keyframes fadeSlideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes toastIn {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ─── 响应式 ─── */
@media (max-width: 900px) {
    .packet-layout, .newbook-layout {
        grid-template-columns: 1fr;
    }
    .topbar-nav { display: none; }
    .content-area { padding: 72px 14px 30px; }
    .form-row { flex-direction: column; gap: 0; }
    .search-input-row { flex-wrap: wrap; }
    .search-input-row input[type="text"] { width: 100%; }
}

@media (max-width: 600px) {
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .login-card { padding: 24px 16px 20px; }
}

/* ════════════════ 备案 Footer ════════════════ */
.icp-footer {
    flex-shrink: 0;
    text-align: center;
    padding: 12px 16px 16px;
    border-top: 1px solid rgba(255,255,255,0.06);
}

.icp-footer a {
    color: rgba(255,255,255,0.4);
    text-decoration: none;
    font-size: 12px;
}

.icp-footer p { margin: 0 0 4px; }
.icp-desc { font-size: 11px; color: rgba(255,255,255,0.28); }
.icp-disclaimer {
    font-size: 10px;
    line-height: 1.6;
    color: rgba(255,255,255,0.15);
    max-width: 600px;
    margin: 0 auto;
}

/* ════════════════ 新书入库 ════════════════ */
.newbook-layout {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-hint {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.form-result {
    margin-top: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    min-height: 20px;
}

.form-result.success {
    background: rgba(34,197,94,0.1);
    border: 1px solid rgba(34,197,94,0.2);
    color: var(--success);
}

.form-result.error {
    background: rgba(239,68,68,0.1);
    border: 1px solid rgba(239,68,68,0.2);
    color: var(--danger);
}

.char-list {
    margin-top: 16px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.char-tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    background: var(--accent-dim);
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--accent-hover);
}

.char-tag .char-role {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.text-secondary { color: var(--text-secondary); }