/* ============================================
   东篱诗社 — 主样式表
   三套配色：浅苔（默认）、暖篱、墨韵
   ============================================ */

/* ====== 主题：浅苔（默认 · shione.app 同款） ====== */
:root,
[data-theme="light"] {
    --color-bg: #ffffff;
    --color-bg-warm: #f4f6f8;
    --color-surface: #ffffff;
    --color-text: #212529;
    --color-text-secondary: #495057;
    --color-text-muted: #6c757d;
    --color-primary: #343a40;
    --color-primary-light: #495057;
    --color-accent: #c44b4b;
    --color-gold: #b8860b;
    --color-border: #e9ecef;
    --color-border-light: #f1f3f5;
    --color-shadow: rgba(0, 0, 0, 0.04);
    --hero-bg: #ffffff;
    --hero-text: #212529;
    --hero-text-secondary: #495057;
    --hero-text-muted: #868e96;
    --hero-btn-border: #ced4da;
    --hero-btn-text: #495057;
    --hero-btn-hover-bg: #f4f6f8;
    --hero-btn-hover-text: #212529;
    --card-bg-zixuanji: #f4f6f8;
    --card-bg-mingjia: #f4f6f8;
    --card-text: #212529;
    --card-desc: #495057;
    --card-arrow: #868e96;
    --header-bg: rgba(255, 255, 255, 0.92);
}

/* ====== 主题：暖篱（暖棕色调） ====== */
[data-theme="warm"] {
    --color-bg: #faf7f2;
    --color-bg-warm: #f5efe6;
    --color-surface: #ffffff;
    --color-text: #2c2416;
    --color-text-secondary: #6b5e4f;
    --color-text-muted: #9b8e7f;
    --color-primary: #8b4513;
    --color-primary-light: #a0522d;
    --color-accent: #c44b4b;
    --color-gold: #b8860b;
    --color-border: #e8e0d5;
    --color-border-light: #f0eae0;
    --color-shadow: rgba(44, 36, 22, 0.08);
    --hero-bg: linear-gradient(135deg, #3c2415 0%, #5c3a28 30%, #2c1810 70%, #1a0f08 100%);
    --hero-text: #fff;
    --hero-text-secondary: rgba(255,255,255,0.7);
    --hero-text-muted: rgba(255,255,255,0.6);
    --hero-btn-border: rgba(255,255,255,0.35);
    --hero-btn-text: rgba(255,255,255,0.85);
    --hero-btn-hover-bg: rgba(255,255,255,0.12);
    --hero-btn-hover-text: #fff;
    --card-bg-zixuanji: linear-gradient(135deg, #2c3e50 0%, #34495e 40%, #1a252f 100%);
    --card-bg-mingjia: linear-gradient(135deg, #4a1a1a 0%, #6b2a2a 40%, #3a1010 100%);
    --card-text: #fff;
    --card-desc: rgba(255,255,255,0.7);
    --card-arrow: rgba(255,255,255,0.6);
    --header-bg: rgba(250, 247, 242, 0.85);
}

/* ====== 主题：墨韵（水墨风格） ====== */
[data-theme="ink"] {
    --color-bg: #f5f2ed;
    --color-bg-warm: #ede8e1;
    --color-surface: #fafaf7;
    --color-text: #1c1c1c;
    --color-text-secondary: #555555;
    --color-text-muted: #888888;
    --color-primary: #3a3a3a;
    --color-primary-light: #5a5a5a;
    --color-accent: #8b3a3a;
    --color-gold: #7a6a45;
    --color-border: #d8d3ca;
    --color-border-light: #e5e0d8;
    --color-shadow: rgba(0, 0, 0, 0.05);
    --hero-bg: #ede8e1;
    --hero-text: #1c1c1c;
    --hero-text-secondary: #555;
    --hero-text-muted: #888;
    --hero-btn-border: rgba(0,0,0,0.22);
    --hero-btn-text: #555;
    --hero-btn-hover-bg: rgba(0,0,0,0.05);
    --hero-btn-hover-text: #1c1c1c;
    --card-bg-zixuanji: #e8e3db;
    --card-bg-mingjia: #e8e3db;
    --card-text: #1c1c1c;
    --card-desc: #555;
    --card-arrow: #888;
    --header-bg: rgba(245, 242, 237, 0.92);
}

/* ====== 基础变量 ====== */
:root {
    --font-serif: 'LXGW WenKai', 'Noto Serif SC', 'STSong', 'SimSun', 'Songti SC', serif;
    --font-sans: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --radius: 10px;
    --radius-lg: 16px;
    --radius-sm: 6px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width: 1100px;
    --header-height: 60px;
}

/* ====== 基础重置 ====== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.7;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background 0.4s ease, color 0.4s ease;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* ====== 导航栏 ====== */
.header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: var(--header-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    height: var(--header-height);
    transition: background 0.4s ease, border-color 0.4s ease;
}

.header-inner {
    max-width: var(--max-width); margin: 0 auto;
    padding: 0 24px; height: 100%;
    display: flex; align-items: center; justify-content: space-between;
}

.logo {
    display: flex; align-items: center; gap: 8px;
    font-family: var(--font-serif);
    font-size: 1.25rem; font-weight: 700;
    color: var(--color-text);
    letter-spacing: 0.04em;
    transition: opacity var(--transition);
}
.logo:hover { opacity: 0.7; }
.logo-icon { font-size: 1.3rem; }

.nav { display: flex; gap: 4px; }

.nav-link {
    padding: 7px 16px; border-radius: 20px;
    font-size: 0.9rem; font-weight: 500;
    color: var(--color-text-secondary);
    transition: all var(--transition);
}
.nav-link:hover { color: var(--color-text); background: var(--color-bg-warm); }
.nav-link.active { color: var(--color-text); background: var(--color-bg-warm); font-weight: 600; }

/* 主题切换 */
.theme-switcher {
    display: flex; gap: 4px; margin-left: 16px;
    padding: 3px;
    background: var(--color-bg-warm);
    border-radius: 20px;
    border: 1px solid var(--color-border);
}
.theme-dot {
    width: 24px; height: 24px; border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
}
.theme-dot:hover { transform: scale(1.12); }
.theme-dot.active { box-shadow: 0 0 0 2px var(--color-text), 0 0 0 4px var(--color-bg); }
.theme-dot.light { background: #fff; border: 1px solid #ced4da; }
.theme-dot.warm { background: #8b4513; }
.theme-dot.ink { background: #3a3a3a; }

/* 简繁切换 */
.lang-toggle {
    margin-left: 8px;
    width: 32px; height: 32px;
    border-radius: 50%;
    font-family: var(--font-serif);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    background: var(--color-bg-warm);
    border: 1px solid var(--color-border);
    cursor: pointer;
    transition: all var(--transition);
    display: flex; align-items: center; justify-content: center;
}
.lang-toggle:hover { color: var(--color-text); border-color: var(--color-text-muted); }

/* 登录按钮 */
.login-btn {
    margin-left: 6px;
    padding: 7px 16px;
    border-radius: 20px;
    font-family: var(--font-sans);
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background: var(--color-bg-warm);
    border: 1px solid var(--color-border);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}
.login-btn:hover { color: var(--color-text); border-color: var(--color-text-muted); }
.login-btn.logged-in {
    color: var(--color-accent);
    font-weight: 600;
}

/* 登录弹窗 */
.login-modal { max-width: 380px; }
.login-error {
    font-size: 0.82rem;
    color: var(--color-accent);
    text-align: center;
    min-height: 20px;
    transition: opacity 0.3s;
}

.menu-toggle {
    display: none; flex-direction: column; gap: 5px; padding: 8px;
}
.menu-toggle span {
    display: block; width: 22px; height: 2px;
    background: var(--color-text); border-radius: 2px;
    transition: all var(--transition);
}

/* ====== 主内容 ====== */
.main { flex: 1; margin-top: var(--header-height); }
.page { display: none; animation: fadeIn 0.35s ease; }
.page.active { display: block; }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ====== Hero 每日一诗 ====== */
.hero {
    position: relative; min-height: 320px;
    display: flex; align-items: center; justify-content: center;
}
.hero-bg {
    position: absolute; inset: 0; z-index: 0;
    background: var(--hero-bg);
}

/* 暖篱主题下 overlay 效果 */
[data-theme="warm"] .hero-bg::after {
    content: ''; position: absolute; inset: 0;
    background: 
        radial-gradient(ellipse at 20% 80%, rgba(184,134,11,0.15) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(196,75,75,0.1) 0%, transparent 60%);
    opacity: 0.6;
}

.hero-content {
    position: relative; z-index: 1; text-align: center;
    padding: 48px 24px; max-width: 640px;
}
.hero-date {
    font-size: 0.85rem; color: var(--hero-text-muted);
    margin-bottom: 16px; letter-spacing: 0.1em;
}
.hero-poem-card { transition: opacity 0.3s ease, transform 0.3s ease; }
.hero-poem-title {
    font-family: var(--font-serif);
    font-size: 1.8rem; font-weight: 700;
    color: var(--hero-text);
    margin-bottom: 6px; letter-spacing: 0.05em; line-height: 1.4;
}
.hero-poem-author {
    font-size: 0.95rem; color: var(--hero-text-secondary);
    margin-bottom: 18px; font-family: var(--font-serif);
}
.hero-poem-body {
    font-family: var(--font-serif);
    font-size: 1.1rem; color: var(--hero-text-secondary);
    line-height: 2; letter-spacing: 0.03em;
    margin-bottom: 24px; white-space: pre-line;
}
[data-theme="warm"] .hero-poem-body { color: rgba(255,255,255,0.85); }

.btn-outline {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 9px 22px;
    border: 1px solid var(--hero-btn-border);
    border-radius: 20px;
    color: var(--hero-btn-text);
    font-size: 0.85rem; font-weight: 500;
    transition: all var(--transition);
}
.btn-outline:hover {
    background: var(--hero-btn-hover-bg);
    border-color: var(--hero-btn-hover-text);
    color: var(--hero-btn-hover-text);
}

/* ====== 栏目卡片 ====== */
.section-intro { text-align: center; padding: 52px 24px 20px; }
.section-title {
    font-family: var(--font-serif);
    font-size: 1.6rem; font-weight: 700;
    color: var(--color-text); letter-spacing: 0.04em;
}
.section-subtitle {
    font-size: 0.9rem; color: var(--color-text-muted); margin-top: 6px;
}

.columns-grid {
    max-width: var(--max-width); margin: 0 auto;
    padding: 0 24px;
    display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}

.column-card {
    position: relative; display: block;
    border-radius: var(--radius-lg); overflow: hidden;
    min-height: 180px;
    transition: all var(--transition);
    border: 1px solid var(--color-border);
}
.column-card:hover {
    transform: translateY(-1px);
    border-color: var(--color-text-muted);
}

.column-card-bg {
    position: absolute; inset: 0; z-index: 0;
    background: var(--card-bg-zixuanji);
    transition: transform 0.6s ease;
}
.bg-mingjia { background: var(--card-bg-mingjia); }
.column-card:hover .column-card-bg { transform: scale(1.03); }

/* 暖篱卡片叠加层 */
[data-theme="warm"] .bg-zixuanji::after {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(ellipse at 30% 70%, rgba(139,69,19,0.3) 0%, transparent 60%);
}
[data-theme="warm"] .bg-mingjia::after {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(ellipse at 70% 30%, rgba(184,134,11,0.3) 0%, transparent 60%);
}

.column-card-content {
    position: relative; z-index: 1;
    padding: 30px 28px;
    color: var(--card-text);
    height: 100%;
    display: flex; flex-direction: column; justify-content: center;
}
.column-icon { font-size: 2rem; margin-bottom: 10px; }
.column-card-content h3 {
    font-family: var(--font-serif);
    font-size: 1.35rem; font-weight: 700;
    margin-bottom: 6px; letter-spacing: 0.04em;
}
.column-card-content p {
    font-size: 0.9rem; color: var(--card-desc);
    line-height: 1.6; margin-bottom: 14px;
}
.column-arrow {
    font-size: 0.85rem; color: var(--card-arrow);
    transition: all var(--transition);
}
.column-card:hover .column-arrow { color: var(--color-text); }

/* ====== 精选推荐 ====== */
.featured-section { padding: 48px 0 64px; }

.poem-grid {
    max-width: var(--max-width); margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}

/* ====== 诗歌卡片 ====== */
.poem-card {
    background: var(--color-surface);
    border-radius: var(--radius);
    padding: 20px 22px;
    border: 1px solid var(--color-border);
    cursor: pointer;
    transition: all var(--transition);
}
.poem-card:hover {
    border-color: var(--color-text-muted);
}

.poem-card-header {
    display: flex; justify-content: space-between; align-items: flex-start;
    margin-bottom: 10px;
}
.poem-card-title {
    font-family: var(--font-serif);
    font-size: 1.1rem; font-weight: 600;
    color: var(--color-text); line-height: 1.4;
}
.poem-card-author {
    font-size: 0.82rem; color: var(--color-text-muted);
    font-family: var(--font-serif);
}

.poem-card-preview {
    font-family: var(--font-serif);
    font-size: 0.92rem; color: var(--color-text-secondary);
    line-height: 1.8;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.poem-card-actions {
    display: flex; gap: 12px;
    margin-top: 14px; padding-top: 10px;
    border-top: 1px solid var(--color-border-light);
}

.btn-fav {
    display: inline-flex; align-items: center; gap: 4px;
    font-size: 0.8rem; color: var(--color-text-muted);
    transition: all var(--transition);
    padding: 4px 8px; border-radius: 14px;
}
.btn-fav:hover { color: var(--color-accent); background: rgba(184,92,92,0.06); }
.btn-fav.favorited { color: var(--color-accent); }

.btn-edit-poem {
    color: var(--color-text-muted);
    cursor: pointer;
    margin-left: auto;
}
.btn-edit-poem:hover { color: var(--color-text); background: var(--color-bg-warm); }

/* ====== 子页 ====== */
.page-header { text-align: center; padding: 48px 24px 12px; }
.page-title {
    font-family: var(--font-serif);
    font-size: 1.8rem; font-weight: 700;
    color: var(--color-text); letter-spacing: 0.04em;
}
.page-desc { font-size: 0.95rem; color: var(--color-text-muted); margin-top: 6px; }

.page-header-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 14px;
}

.poem-list {
    max-width: var(--max-width); margin: 0 auto;
    padding: 20px 24px 64px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 16px;
}

/* ====== 诗人筛选 ====== */
.poet-filter {
    max-width: var(--max-width); margin: 0 auto;
    padding: 4px 24px 20px;
    display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;
}
.poet-tag {
    padding: 6px 16px; border-radius: 18px;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    cursor: pointer;
    transition: all var(--transition);
}
.poet-tag:hover { color: var(--color-text); border-color: var(--color-text-muted); }
.poet-tag.active {
    color: #fff;
    background: var(--color-text);
    border-color: var(--color-text);
}

/* ====== 空状态 ====== */
.empty-state {
    text-align: center; padding: 80px 24px;
    max-width: var(--max-width); margin: 0 auto;
}
.empty-icon { font-size: 2.8rem; display: block; margin-bottom: 14px; }
.empty-state p { font-size: 1rem; color: var(--color-text-secondary); }
.empty-hint { font-size: 0.85rem !important; color: var(--color-text-muted) !important; margin-top: 6px; }

/* ====== 弹窗 ====== */
.modal-overlay {
    display: none; position: fixed; inset: 0; z-index: 200;
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(4px);
    align-items: center; justify-content: center;
    padding: 24px;
}
.modal-overlay.show { display: flex; }

.modal {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    max-width: 600px; width: 100%;
    max-height: 85vh; overflow-y: auto;
    position: relative;
    animation: modalIn 0.3s ease;
    box-shadow: 0 16px 48px rgba(0,0,0,0.15);
}
@keyframes modalIn {
    from { opacity: 0; transform: scale(0.96) translateY(16px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
    position: absolute; top: 10px; right: 14px;
    font-size: 1.4rem; color: var(--color-text-muted);
    width: 34px; height: 34px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%;
    transition: all var(--transition); z-index: 10;
}
.modal-close:hover { background: var(--color-bg-warm); color: var(--color-text); }

.modal-content { padding: 36px 32px; }

.modal-poem-title {
    font-family: var(--font-serif);
    font-size: 1.6rem; font-weight: 700;
    color: var(--color-text);
    margin-bottom: 4px; letter-spacing: 0.04em;
}
.modal-poem-author {
    font-size: 0.95rem; color: var(--color-text-muted);
    font-family: var(--font-serif); margin-bottom: 22px;
}
.modal-poem-body {
    font-family: var(--font-serif);
    font-size: 1.1rem; color: var(--color-text);
    line-height: 2.2; white-space: pre-line;
    letter-spacing: 0.03em; margin-bottom: 22px;
}
.modal-poem-note {
    font-size: 0.88rem; color: var(--color-text-secondary);
    line-height: 1.8;
    padding: 14px 18px;
    background: var(--color-bg-warm);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-gold);
}
.modal-actions {
    display: flex; gap: 10px;
    margin-top: 22px; padding-top: 18px;
    border-top: 1px solid var(--color-border);
}

.btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 9px 20px; border-radius: 20px;
    font-size: 0.88rem; font-weight: 500;
    transition: all var(--transition);
}
.btn-primary { background: var(--color-text); color: var(--color-bg); }
.btn-primary:hover { opacity: 0.85; }
.btn-secondary { background: var(--color-bg-warm); color: var(--color-text-secondary); }
.btn-secondary:hover { background: var(--color-border); }

/* ====== 添加新作表单 ====== */
.add-poem-form { display: flex; flex-direction: column; gap: 14px; }
.form-label {
    display: flex; flex-direction: column; gap: 5px;
    font-size: 0.85rem; font-weight: 500;
    color: var(--color-text-secondary);
}
.form-label input,
.form-label textarea {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    color: var(--color-text);
    caret-color: var(--color-text);
    resize: vertical;
    transition: border-color var(--transition);
    line-height: 1.8;
}
.form-label input:focus,
.form-label textarea:focus {
    outline: none;
    border-color: var(--color-text-muted);
    box-shadow: 0 0 0 3px rgba(0,0,0,0.05);
    caret-color: var(--color-text);
}
.form-label input::placeholder,
.form-label textarea::placeholder { color: var(--color-text-muted); }

/* 确保所有 input/textarea 光标可见 */
input, textarea {
    caret-color: var(--color-text);
}

/* ====== 页脚 ====== */
.footer {
    border-top: 1px solid var(--color-border);
    padding: 28px 24px;
    background: var(--color-bg-warm);
}
.footer-inner {
    max-width: var(--max-width); margin: 0 auto;
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 14px;
}
.footer-brand .logo-text {
    font-family: var(--font-serif);
    font-size: 1.05rem; font-weight: 600;
    color: var(--color-text);
}
.footer-brand p { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 2px; }
.footer-links { font-size: 0.8rem; color: var(--color-text-muted); }

/* ============================================
   响应式
   ============================================ */
@media (max-width: 768px) {
    .columns-grid { grid-template-columns: 1fr; }
    .poem-grid, .poem-list { grid-template-columns: 1fr; padding: 0 16px; }
    .hero { min-height: 300px; }
    .hero-poem-title { font-size: 1.5rem; }
    .hero-poem-body { font-size: 1rem; }
    .section-title { font-size: 1.35rem; }
    .page-title { font-size: 1.5rem; }

    .theme-switcher { margin-left: 8px; }
    .theme-dot { width: 22px; height: 22px; }
    .lang-toggle { margin-left: 6px; width: 28px; height: 28px; font-size: 0.72rem; }

    .nav {
        position: fixed; top: var(--header-height); left: 0; right: 0;
        background: var(--header-bg);
        backdrop-filter: blur(12px);
        flex-direction: column;
        padding: 12px 24px; gap: 2px;
        border-bottom: 1px solid var(--color-border);
        transform: translateY(-100%); opacity: 0; pointer-events: none;
        transition: all var(--transition);
    }
    .nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
    .nav-link { padding: 12px 16px; font-size: 0.95rem; }
    .menu-toggle { display: flex; }

    .modal { max-width: 100%; margin: 12px; }
    .modal-content { padding: 26px 20px; }
    .modal-poem-title { font-size: 1.3rem; }
    .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
    .hero { min-height: 280px; }
    .hero-content { padding: 32px 16px; }
    .hero-poem-title { font-size: 1.3rem; }
    .hero-poem-body { font-size: 0.9rem; line-height: 1.9; }
    .column-card { min-height: 160px; }
    .column-card-content { padding: 22px 20px; }
    .column-card-content h3 { font-size: 1.2rem; }
    .poem-card { padding: 16px 18px; }
    .section-intro { padding: 36px 16px 16px; }
    .page-header { padding: 36px 16px 10px; }
    .poet-filter { gap: 6px; padding: 4px 16px 14px; }
    .poet-tag { padding: 4px 12px; font-size: 0.8rem; }
}