/* ==========================================================
   太乙神数 · 传统文化学习工具
   新中式 · 玄金 / 玉简 双主题
   ========================================================== */

:root {
    --bg: #f5f0e8;
    --bg-card: #fdfaf4;
    --ink: #2b2620;
    --ink-light: #6b6258;
    --indigo: #2c3e6b;
    --indigo-dark: #1e2d52;
    --gold: #b8860b;
    --gold-light: #d4a843;
    --border: #e2d8c4;
    --shadow: 0 4px 20px rgba(44, 62, 107, 0.06);

    --c-taiyi: #a03a2b;
    --c-tianmu: #2c6faa;
    --c-shiji: #7b4fa0;
    --c-jishen: #b8860b;
    --c-zhujiang: #2e7d52;
    --c-kejiang: #8b3a3a;
    --c-dingjiang: #6b6258;

    --ji: #2e7d52;
    --xiong: #8b3a3a;
    --ping: #8b7d3c;
    --teShu: #3d5f7a;

    --radius: 14px;
    --serif: "Songti SC", "STSong", "SimSun", "Noto Serif SC", serif;
    --kai: "Kaiti SC", "STKaiti", "KaiTi", "Noto Serif SC", serif;
    --mono: "SF Mono", "Menlo", "Consolas", monospace;
}

html[data-theme="dark"] {
    --bg: #1a1a2e;
    --bg-card: #252540;
    --ink: #e8dfcf;
    --ink-light: #b8ad9a;
    --indigo: #5b7db8;
    --indigo-dark: #4a6a9e;
    --gold: #d4a843;
    --border: #3a3a5c;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);

    --c-taiyi: #d06a58;
    --c-tianmu: #5b9bd5;
    --c-shiji: #a670d6;
    --c-jishen: #d4a843;
    --c-zhujiang: #4caf7a;
    --c-kejiang: #c06060;
    --c-dingjiang: #b8ad9a;

    --ji: #4caf7a;
    --xiong: #c06060;
    --ping: #c9b45c;
    --teShu: #6b93b8;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--serif);
    line-height: 1.7;
    padding-bottom: 72px;
}

/* ---------- 头部 ---------- */
.app-header {
    text-align: center;
    padding: 24px 16px 16px;
    border-bottom: 3px solid transparent;
    border-image: linear-gradient(90deg, var(--indigo), var(--gold), var(--indigo)) 1;
}
.seal {
    width: 58px; height: 58px;
    margin: 0 auto 10px;
    background: linear-gradient(135deg, var(--indigo), var(--indigo-dark));
    color: var(--gold-light);
    font-family: var(--kai);
    font-size: 30px;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    box-shadow: var(--shadow);
}
.app-header h1 {
    margin: 0;
    font-family: var(--kai);
    font-size: 26px;
    letter-spacing: 4px;
    color: var(--indigo);
}
.subtitle { margin: 4px 0 0; font-size: 13px; color: var(--ink-light); }

/* ---------- 主体 ---------- */
.app-main { max-width: 720px; margin: 0 auto; padding: 16px; }
.hidden { display: none !important; }

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    margin-bottom: 16px;
    box-shadow: var(--shadow);
}
.card-title {
    margin: 0 0 12px;
    font-family: var(--kai);
    font-size: 18px;
    color: var(--indigo);
    border-left: 4px solid var(--gold);
    padding-left: 10px;
}
.hint { font-size: 12px; color: var(--ink-light); margin: 8px 0 0; }

/* ---------- 表单 ---------- */
.form-row {
    display: flex; align-items: center; gap: 10px;
    margin-bottom: 12px;
}
.form-row label { width: 88px; flex-shrink: 0; font-size: 14px; color: var(--ink-light); }
.form-row input, .form-row select {
    flex: 1;
    padding: 9px 11px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--serif);
    font-size: 15px;
}
.form-row input:focus, .form-row select:focus {
    outline: none;
    border-color: var(--indigo);
}

.btn-row { display: flex; gap: 10px; flex-wrap: wrap; }
.btn {
    padding: 9px 18px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--serif);
    font-size: 15px;
    cursor: pointer;
    transition: all .2s;
}
.btn:hover { border-color: var(--indigo); transform: translateY(-1px); }
.btn-primary {
    background: linear-gradient(135deg, var(--indigo), var(--indigo-dark));
    color: #fff;
    border: none;
    box-shadow: var(--shadow);
}
.btn-primary:hover { box-shadow: 0 6px 18px rgba(184, 134, 11, .25); }

/* ---------- 八宫式盘 ---------- */
.pan-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}
.palace {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 8px 6px;
    min-height: 132px;
    background: var(--bg);
    cursor: pointer;
    transition: all .2s;
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 3px;
}
.palace:hover, .palace:focus {
    border-color: var(--gold);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
    outline: none;
}
.palace.center {
    background: transparent;
    border-style: dashed;
    align-items: center;
    justify-content: center;
    cursor: default;
    color: var(--ink-light);
    font-size: 13px;
}
.palace.center:hover { transform: none; border-color: var(--border); }

.p-name { font-family: var(--kai); font-size: 14px; color: var(--indigo); }
.p-meta { font-size: 11px; color: var(--ink-light); }
.p-shen { font-size: 12px; color: var(--ink-light); }   /* 12px 满足 WCAG AA */
.p-divider { height: 1px; background: var(--border); margin: 2px 0; }
.p-sym { font-size: 13px; font-weight: 600; }
.p-sym.taiyi { color: var(--c-taiyi); font-size: 15px; }
.p-sym.tianmu { color: var(--c-tianmu); }
.p-sym.shiji { color: var(--c-shiji); }
.p-sym.jishen { color: var(--c-jishen); }
.p-jiang { font-size: 11px; }
.p-jiang .zhu { color: var(--c-zhujiang); }
.p-jiang .ke { color: var(--c-kejiang); }
.p-jiang .ding { color: var(--c-dingjiang); }
.p-men { font-size: 12px; }
.p-men.ji { color: var(--ji); }
.p-men.xiong { color: var(--xiong); }
.p-men.ping { color: var(--ping); }
.p-geju {
    margin-top: auto;
    display: flex; flex-wrap: wrap; gap: 3px;
}
.gj-tag {
    font-size: 10px;
    padding: 1px 5px;
    border-radius: 4px;
    border: 1px solid var(--border);
    color: var(--ink-light);
    background: var(--bg-card);
}
.gj-tag.gj-click { cursor: pointer; }
.gj-tag.gj-click:hover, .gj-tag.gj-click:focus {
    border-color: var(--gold);
    color: var(--indigo);
    outline: none;
}

/* 符号「?」释义入口 */
.sym-help {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 15px; height: 15px;
    margin-left: 4px;
    border-radius: 50%;
    border: 1px solid currentColor;
    font-size: 10px;
    line-height: 1;
    opacity: .55;
    cursor: pointer;
    vertical-align: middle;
}
.sym-help:hover, .sym-help:focus {
    opacity: 1;
    background: rgba(184, 134, 11, .22);
    outline: none;
}
.p-glow-taiyi { background: radial-gradient(circle at 50% 40%, rgba(160,58,43,.10), transparent 70%); }
.p-glow-tianmu { background: radial-gradient(circle at 50% 40%, rgba(44,111,170,.10), transparent 70%); }
.p-glow-shiji { background: radial-gradient(circle at 50% 40%, rgba(123,79,160,.10), transparent 70%); }

/* ---------- 图层开关 ---------- */
.layer-bar {
    display: flex; align-items: center; gap: 6px;
    flex-wrap: wrap; margin-bottom: 12px;
}
.layer-label { font-size: 13px; color: var(--ink-light); margin-right: 2px; }
.layer-btn {
    padding: 4px 10px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--bg);
    color: var(--ink-light);
    font-family: var(--serif);
    font-size: 12px;
    cursor: pointer;
    transition: all .2s;
}
.layer-btn.active { background: var(--indigo); color: #fff; border-color: var(--indigo); }
.layer-btn:not(.active) { opacity: .5; text-decoration: line-through; }

/* 图层隐藏规则 */
.pan-grid.hide-tianmu .p-sym.tianmu { display: none; }
.pan-grid.hide-shiji .p-sym.shiji { display: none; }
.pan-grid.hide-jishen .p-sym.jishen { display: none; }
.pan-grid.hide-jiang .p-jiang { display: none; }
.pan-grid.hide-men .p-men { display: none; }

/* ---------- 十六神方位盘 ---------- */
.shen-wheel {
    position: relative;
    width: 260px; height: 260px;
    margin: 12px auto;
}
.shen-wheel::before {
    content: '';
    position: absolute;
    left: 50%; top: 50%;
    width: 116px; height: 116px;
    margin: -58px 0 0 -58px;
    border: 1px dashed var(--border);
    border-radius: 50%;
}
.shen-item {
    position: absolute;
    left: 50%; top: 50%;
    width: 46px; height: 46px;
    margin: -23px 0 0 -23px;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--border);
    border-radius: 50%;
    background: var(--bg);
    font-family: var(--kai);
    font-size: 13px;
    color: var(--indigo);
    cursor: pointer;
    transition: all .2s;
}
.shen-item.jian { border-style: dashed; color: var(--ink-light); }
.shen-item:hover, .shen-item.active {
    border-color: var(--gold);
    background: var(--indigo);
    color: #fff;
}
.wheel-legend { text-align: center; font-size: 12px; color: var(--ink-light); }

@media (max-width: 400px) {
    .shen-wheel { width: 216px; height: 216px; }
}

/* ---------- 信息表 ---------- */
.info-table { display: grid; grid-template-columns: auto 1fr; gap: 6px 12px; font-size: 14px; }
.info-table .k { color: var(--ink-light); }
.info-table .v { font-family: var(--mono); }
.info-table .v.txt { font-family: var(--serif); }

/* ---------- 推导 ---------- */
.suan-block { margin-bottom: 14px; }
.suan-title { font-family: var(--kai); color: var(--indigo); margin-bottom: 4px; }
.suan-path { font-family: var(--mono); font-size: 13px; color: var(--ink-light); }
.suan-val { font-family: var(--mono); font-size: 18px; color: var(--ink); }
.jiang-item { font-size: 13px; }
.jiang-item.no-chu { color: var(--ink-light); font-style: italic; }

/* ---------- 流派对比 ---------- */
.cmp-table { width: 100%; border-collapse: collapse; font-size: 13px; margin-top: 8px; }
.cmp-table th, .cmp-table td {
    padding: 7px 8px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: top;
}
.cmp-table th { color: var(--ink-light); font-weight: normal; font-size: 12px; }
.cmp-diff { background: rgba(184, 134, 11, .13); }
.cmp-same { color: var(--ink-light); }
.cmp-h {
    margin: 14px 0 6px;
    font-family: var(--kai);
    font-size: 15px;
    color: var(--indigo);
}
.cmp-reason { font-size: 12px; color: var(--ink-light); margin-bottom: 6px; line-height: 1.7; }

/* ---------- 逐步推演 ---------- */
.steps-bar { margin-bottom: 10px; }
.step {
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 8px;
    overflow: hidden;
    background: var(--bg);
}
.step-head {
    display: flex; align-items: center; gap: 8px;
    padding: 9px 11px;
    cursor: pointer;
    font-size: 14px;
}
.step-head:hover { background: rgba(184, 134, 11, .06); }
.step-no {
    width: 20px; height: 20px;
    flex-shrink: 0;
    border-radius: 50%;
    background: var(--indigo);
    color: #fff;
    font-size: 11px;
    display: flex; align-items: center; justify-content: center;
}
.step-name { font-family: var(--kai); color: var(--indigo); flex-shrink: 0; }
.step-result {
    margin-left: auto;
    font-size: 12px;
    color: var(--ink-light);
    text-align: right;
    word-break: break-all;
}
.step-body {
    display: none;
    padding: 4px 12px 12px;
    font-size: 13px;
    border-top: 1px dashed var(--border);
}
.step.open .step-body { display: block; }
.step-body p { margin: 5px 0; }

/* ---------- 格局 ---------- */
.geju-list { display: flex; flex-wrap: wrap; gap: 8px; }
.geju-chip {
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--bg);
    font-family: var(--kai);
    font-size: 14px;
    cursor: pointer;
    transition: all .2s;
}
.geju-chip:hover { border-color: var(--indigo); color: var(--indigo); }
.geju-empty { color: var(--ink-light); font-size: 14px; }

/* ---------- Tab ---------- */
.tab-bar { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.tab {
    padding: 7px 14px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--bg-card);
    color: var(--ink-light);
    font-family: var(--serif);
    font-size: 14px;
    cursor: pointer;
}
.tab.active { background: var(--indigo); color: #fff; border-color: var(--indigo); }

.out-box { margin-top: 12px; font-size: 14px; }

/* ---------- 列表 ---------- */
.item-list { display: flex; flex-direction: column; gap: 10px; }
.item {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 10px 12px;
    background: var(--bg);
    cursor: pointer;
    transition: all .2s;
}
.item:hover { border-color: var(--gold); }
.item-title { font-family: var(--kai); font-size: 16px; color: var(--indigo); }
.item-sub { font-size: 12px; color: var(--ink-light); }
.item-desc { font-size: 13px; margin-top: 4px; }

.duanyu {
    background: var(--bg);
    border-left: 3px solid var(--gold);
    padding: 8px 12px;
    margin: 8px 0;
    font-family: var(--kai);
    font-size: 15px;
}
.chuchu { font-size: 12px; color: var(--ink-light); }
.fuzhu {
    margin-top: 10px;
    padding: 8px 10px;
    border-radius: 8px;
    background: rgba(184, 134, 11, .08);
    font-size: 12px;
    color: var(--ink-light);
}

/* ---------- 验证 ---------- */
.verify-case { margin-bottom: 16px; }
.verify-case h4 { margin: 0 0 6px; font-family: var(--kai); color: var(--indigo); }
.verify-row {
    display: flex; justify-content: space-between;
    padding: 5px 8px;
    border-bottom: 1px dashed var(--border);
    font-size: 13px;
}
.verify-ok { color: var(--ji); }
.verify-no { color: var(--xiong); }
.conf-item { font-size: 13px; padding: 4px 0; border-bottom: 1px dashed var(--border); }

/* ---------- 典籍辑录 ---------- */
.dj-seg {
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px dashed var(--border);
}
.dj-title {
    font-family: var(--kai);
    font-size: 16px;
    color: var(--indigo);
    margin-bottom: 6px;
}
.dj-yuanwen {
    font-family: var(--kai);
    font-size: 16px;
    line-height: 2;
    padding: 10px 12px;
    background: var(--bg);
    border-left: 3px solid var(--gold);
    border-radius: 0 8px 8px 0;
    margin-bottom: 6px;
}
.dj-chuchu, .dj-laiyuan { font-size: 12px; color: var(--ink-light); }
.dj-zhushi { font-size: 14px; margin-top: 8px; }

/* ---------- 新手引导 ---------- */
.guide {
    position: fixed; inset: 0; z-index: 200;
    background: rgba(0, 0, 0, .55);
    display: flex; align-items: center; justify-content: center;
    padding: 16px;
}
.guide-body {
    width: 100%; max-width: 430px;
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 16px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, .25);
}
.guide-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.guide-head h3 { margin: 0; font-family: var(--kai); color: var(--indigo); font-size: 18px; }
.guide-content { font-size: 14px; min-height: 132px; }
.guide-content p { margin: 7px 0; }
.guide-foot { display: flex; align-items: center; gap: 8px; margin-top: 12px; }
.guide-dots { flex: 1; display: flex; gap: 5px; }
.guide-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--border); }
.guide-dot.active { background: var(--indigo); }

/* ---------- 弹层 ---------- */
.modal { position: fixed; inset: 0; z-index: 100; display: flex; align-items: flex-end; justify-content: center; }
.modal-mask { position: absolute; inset: 0; background: rgba(0,0,0,.45); }
.modal-body {
    position: relative;
    width: 100%; max-width: 720px;
    max-height: 80vh;
    overflow-y: auto;
    background: var(--bg-card);
    border-radius: var(--radius) var(--radius) 0 0;
    padding: 16px;
    box-shadow: 0 -8px 30px rgba(0,0,0,.2);
}
.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.modal-head h3 { margin: 0; font-family: var(--kai); color: var(--indigo); }
.modal-close { background: none; border: none; font-size: 26px; color: var(--ink-light); cursor: pointer; line-height: 1; }
.modal-content { font-size: 14px; }

/* ---------- 底部导航 ---------- */
.app-nav {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    display: flex;
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    z-index: 50;
    padding-bottom: env(safe-area-inset-bottom);
}
.nav-btn {
    flex: 1;
    padding: 10px 0;
    border: none;
    background: none;
    color: var(--ink-light);
    font-family: var(--serif);
    font-size: 14px;
    cursor: pointer;
}
.nav-btn.active { color: var(--indigo); font-weight: 600; box-shadow: inset 0 2px 0 var(--gold); }

/* ---------- 页脚 ---------- */
.app-footer {
    max-width: 720px;
    margin: 0 auto;
    padding: 16px;
    font-size: 12px;
    color: var(--ink-light);
    border-top: 1px solid var(--border);
}
.app-footer p { margin: 6px 0; }
.app-footer strong { color: var(--ink); }

/* ---------- 响应式：移动端信息密度控制 ---------- */
@media (max-width: 767px) {
    .palace { min-height: 112px; padding: 6px 4px; }
    .p-name { font-size: 13px; }
    .p-meta { display: none; }              /* 隐藏方位五行 */
    .fold-extra { display: none; }          /* 十六神、五将、计神默认折叠 */
    .palace.expanded .fold-extra { display: block; }
    .palace.expanded .p-meta { display: block; }
}

@media (max-width: 399px) {
    .fold-mobile { display: none; }
    .palace.expanded .fold-mobile { display: block; }
    .palace { min-height: 96px; }
}

@media (min-width: 768px) {
    .pan-grid { max-width: 520px; margin: 0 auto; }
    .palace { min-height: 140px; }
}

/* 六个导航项在极窄屏下适度收缩 */
@media (max-width: 360px) {
    .nav-btn { font-size: 13px; padding: 8px 0; }
}

@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; }
}