/* ============================================================
 * style.css — 字帖生成器主题（基于 Bootstrap 5 的完整自定义）
 * ============================================================ */

:root {
  /* 色板 */
  --brand: #e0447c;          /* 主色：玫粉 */
  --brand-deep: #b92d63;
  --brand-soft: #fdf0f5;

/* ---------- 布局行 ----------
 * ≥992px: 侧栏 + 预览并排（修复被 print 块 display:block!important 覆盖的问题）
 * <992px: 纵向堆叠（设置在 offcanvas 抽屉里，预览全宽） */
.layout-row { display: flex !important; flex-direction: column; align-items: stretch; }
@media (min-width: 992px) {
  .layout-row { flex-direction: row !important; align-items: flex-start; }
  .layout-row > * { min-width: 0; }
}
  --ink: #2b3040;            /* 主文字 */
  --ink-2: #5b6270;          /* 次文字 */
  --ink-3: #9aa1ae;          /* 弱文字 */
  --line: #e9ecf2;           /* 分隔线 */
  --bg: #f1f3f8;             /* 页面底 */
  --card: #ffffff;
  --ok: #2f9e6e;

  --radius: 16px;
  --radius-s: 10px;
  --shadow-card: 0 1px 2px rgba(23, 30, 54, .04), 0 8px 28px rgba(23, 30, 54, .07);
  --shadow-page: 0 1px 3px rgba(23, 30, 54, .08), 0 14px 38px rgba(23, 30, 54, .13);
}

* { box-sizing: border-box; }

body {
  background:
    radial-gradient(1100px 500px at 85% -10%, #ffe8f1 0%, rgba(255, 232, 241, 0) 60%),
    radial-gradient(900px 500px at -10% 110%, #e7ecff 0%, rgba(231, 236, 255, 0) 55%),
    var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  min-height: 100vh; /* print: auto */
}

/* ---------- 通用微交互 ---------- */
.btn, .form-control, .form-select, .form-check-input, .chip {
  transition: all .16s ease;
}

/* ---------- 侧栏面板 ---------- */
.panel {
  background: var(--card);
  border-radius: var(--radius);
  padding: 20px 18px;
  border: 1px solid rgba(23, 30, 54, .06);
  box-shadow: var(--shadow-card, 0 1px 2px rgba(23,30,54,.04), 0 10px 30px rgba(23,30,54,.06));
}

.app-title { font-size: 17px; font-weight: 800; color: var(--ink); margin-bottom: 2px; letter-spacing: .5px; }
.app-title .em { color: var(--brand); }
.panel .sub { font-size: 12px; color: var(--ink-3); margin-bottom: 14px; line-height: 1.55; }

.panel .form-label { font-size: 12.5px; font-weight: 600; color: var(--ink-2); margin: 12px 0 5px; display: flex; align-items: center; gap: 5px; }
.panel .form-label:first-of-type { margin-top: 0; }

/* 表单紧凑化 */
.panel .form-control, .panel .form-select { font-size: 13.5px; padding: 6px 10px; border-radius: 9px; border-color: var(--line); color: var(--ink); background: #fbfcfe; }
.panel .form-control:focus, .panel .form-select:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(224, 68, 124, .12); background: #fff; }
.panel textarea.form-control { min-height: 58px; line-height: 1.7; }
.panel .form-check-input:checked { background-color: var(--brand); border-color: var(--brand); }
.panel .form-check-label { font-size: 13px; color: var(--ink-2); }

/* 小节标题 */
.sec { display: flex; align-items: center; gap: 7px; font-size: 13px; font-weight: 700; color: var(--ink); margin: 18px 0 8px; padding-top: 14px; border-top: 1px solid var(--line); }
.sec-ico { width: 22px; height: 22px; border-radius: 7px; display: inline-flex; align-items: center; justify-content: center; font-size: 12px; background: var(--brand-soft); color: var(--brand); }

/* ---------- chips 快捷标签 ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  font-size: 12px; padding: 4px 11px; border-radius: 999px; cursor: pointer;
  border: 1px solid #f3c4d6; background: #fff; color: var(--brand-deep); font-weight: 500;
}
.chip:hover { border-color: var(--brand); background: var(--brand-soft); transform: translateY(-1px); }
.chip.active { background: var(--brand); border-color: var(--brand); color: #fff; box-shadow: 0 3px 10px rgba(224, 68, 124, .28); }

/* ---------- 按钮 ---------- */
.btn-brand {
  --bs-btn-bg: linear-gradient(135deg, #ef5d92, #d63384);
  background: linear-gradient(135deg, #ef5d92, #d63384);
  border: none; color: #fff; font-weight: 700; letter-spacing: 1px;
  box-shadow: 0 4px 14px rgba(214, 51, 132, .32);
}
.btn-brand:hover { filter: brightness(1.06); box-shadow: 0 6px 18px rgba(214, 51, 132, .4); transform: translateY(-1px); }
.btn-brand:active { transform: translateY(0); }
.btn-outline-brand {
  --bs-btn-color: var(--brand-deep); --bs-btn-border-color: #f1b3c9;
  --bs-btn-hover-bg: var(--brand); --bs-btn-hover-border-color: var(--brand); --bs-btn-hover-color: #fff;
}
.btn-success { border: none; font-weight: 600; }

/* ---------- 状态行 ---------- */
.status-ok { color: var(--ink-2); }
#status { font-size: 12.5px; line-height: 1.6; }

/* ---------- 预览区 ---------- */
.preview-col { position: relative; }

.toolbar {
  background: var(--card);
  border: 1px solid rgba(23, 30, 54, .06);
  border-radius: 13px;
  padding: 9px 14px;
  box-shadow: 0 1px 2px rgba(23,30,54,.04), 0 6px 20px rgba(23,30,54,.05);
  margin-bottom: 14px;
  /* 宽度与 A4 预览页对齐（210mm=794px），居中 */
  width: 210mm;
  max-width: 100%;
  margin-left: auto;
  margin-right: auto;
}
.toolbar .fw-bold { font-size: 14px; }

.pages-wrap {
  padding: 6px 0 48px;
  display: flex;
  justify-content: center;
}

.pages {
  display: flex; flex-direction: column; gap: 12mm; align-items: center;
  transform-origin: top center;
}

/* 纸张 */
.a4-page {
  width: 210mm; height: 297mm;
  background: #fff;
  border-radius: 3px;
  box-shadow: var(--shadow-page, 0 2px 6px rgba(23,30,54,.08), 0 18px 44px rgba(23,30,54,.14));
  padding: 10mm;
  position: relative;
  overflow: hidden;
  flex: 0 0 auto;
}

.page-num {
  position: absolute; right: 6mm; bottom: 4mm;
  font-size: 8.5pt; color: #c3c9d4; letter-spacing: 1.5px;
  font-variant-numeric: tabular-nums;
}

/* ---------- 字帖内容 ---------- */
.sheet-title { text-align: center; font-size: 20pt; font-weight: 700; letter-spacing: 8px; color: #1c1f26; margin: 0 0 2mm; line-height: 1.2; }
.name-line { text-align: center; font-size: 10.5pt; color: #4a505c; margin-bottom: 4mm; letter-spacing: 2px; }
.block { margin: 0 auto 3.5mm; width: fit-content; width: -webkit-fit-content; max-width: 100%; }
.trow { display: flex; gap: 1.6mm; align-items: flex-start; flex-wrap: nowrap; }
.trow > * { flex-shrink: 1; min-width: 0; }
.cell { width: var(--cell, 12mm); height: var(--cell, 12mm); flex: 0 0 auto; display: block; }
.cell-sep {
  flex: 0 0 auto;
  width: 1.2mm; height: var(--cell, 12mm);
  align-self: center;
  border-left: 1.5px solid #dca8a8;
  margin: 0 1mm;
}
.info-row { display: flex; align-items: flex-end; gap: 2mm; margin-bottom: 1mm; }
.py { width: var(--cell, 12mm); display: inline-flex; justify-content: center; align-items: flex-end; font-size: 11pt; line-height: 5mm; color: #c0392b; font-weight: 600; flex: 0 0 auto; }
.py.empty { visibility: hidden; }
.steps { display: flex; gap: 1.4mm; align-items: flex-end; flex-wrap: nowrap; min-width: 0; overflow: hidden; }
.steps > * { flex-shrink: 1; min-width: 0; }

/* ---------- 手机端 ---------- */
.navbar-mobile {
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  /* 刘海屏/状态栏安全区：加到桌面（PWA）或全屏时顶部不被遮挡 */
  padding-top: calc(8px + env(safe-area-inset-top, 0px));
  padding-bottom: 8px;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}
.settings-fab-bar { --bs-offcanvas-height: 88vh; }
.settings-fab-bar .offcanvas-header { border-bottom: 1px solid var(--line); }
.settings-fab-bar .offcanvas-body { padding: 12px 16px 20px; }

/* 缩放提示（小屏） */
.zoom-hint { font-size: 11px; color: var(--ink-3); text-align: center; margin-top: -30px; padding-bottom: 30px; }

/* ---------- 打印：与预览一一对应 ---------- */
@page { size: A4 portrait; margin: 0; }
@media print {
  body { background: #fff; min-height: auto !important; }
  .no-print { display: none !important; }
  .container-fluid, .layout-row, main { display: block !important; padding: 0 !important; margin: 0 !important; max-width: none !important; width: auto !important; }
  .pages-wrap { overflow: visible !important; height: auto !important; padding: 0 !important; }
  .pages { display: block !important; transform: none !important; gap: 0 !important; }
  .cell-sep, .page-num { display: none !important; }
  .a4-page {
    width: 210mm !important; height: 296mm !important;   /* 略小于 297：防舍入溢出产生空白尾页 */
    padding: 10mm !important; border-radius: 0 !important;
    box-shadow: none !important; margin: 0 !important;
    overflow: hidden;
    page-break-after: always; break-after: page;
    -webkit-print-color-adjust: exact; print-color-adjust: exact;
  }
  .a4-page:last-child { page-break-after: auto; break-after: auto; }
}

/* ---------- 面板小节 ---------- */
.sec {
  display: flex; align-items: center; gap: 7px;
  font-size: 13px; font-weight: 700; color: var(--ink);
  margin: 18px 0 8px; padding-top: 14px;
  border-top: 1px solid var(--line);
}
.sec:first-of-type { border-top: none; padding-top: 0; margin-top: 6px; }
.sec-ico {
  width: 22px; height: 22px; border-radius: 7px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--brand-soft); font-size: 12px;
}
.status-line {
  font-size: 12.5px; color: var(--ink-2); line-height: 1.6;
  margin-top: 12px; min-height: 1.2em;
  padding: 7px 10px; border-radius: 9px;
  background: #f6f8fb;
}
.form-check-label { font-size: 13px; color: var(--ink-2); }
.form-check { margin-bottom: 2px; }
.form-check-input:checked { background-color: var(--brand); border-color: var(--brand); }

/* 词语分隔竖线 hover 提示等微交互 */
.chip:active { transform: scale(.96); }


/* ---------- 楷体字格（HTML div 渲染，flex 居中） ---------- */
.cell.kai-cell, .cell.svg-cell {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #fff;
}
.cell.kai-cell .cell-bg, .cell.svg-cell .cell-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}
.cell.kai-cell .kai-glyph {
  font-synthesis: none;
  position: relative;
  z-index: 1;
  font-family: "Kaiti SC", "STKaiti", "KaiTi", "楷体", "AR PL UKai CN", "Ma Shan Zheng", serif;
  font-size: calc(var(--cell, 12mm) * 1.02);   /* 汉字墨迹约78%格 */
  line-height: 1;
  font-weight: 400;
}


/* ---------- 设置折叠区 ---------- */
.sec .collapse-toggle {
  display: flex; align-items: center; gap: 7px;
  font-size: 13px; font-weight: 700; color: var(--ink);
  text-decoration: none; cursor: pointer; user-select: none;
}
.sec .collapse-toggle:hover { color: var(--brand); }
.sec .toggle-arrow { font-size: 11px; color: var(--ink-3); transition: transform .18s; margin-left: auto; }
.sec .collapse-toggle[aria-expanded="true"] .toggle-arrow,
a[aria-expanded="true"] .toggle-arrow { transform: rotate(180deg); }

/* 手机抽屉：按钮固定底部（不随内容滚动） */
@media (max-width: 991.98px) {
  /* 抽屉内容留出底部按钮空间 */
  .settings-fab-bar .offcanvas-body { padding-bottom: 132px; }
  /* 按钮悬浮于屏幕底部（抽屉打开状态时 transform 已清除，fixed 生效） */
  .offcanvas.show ~ .drawer-footer, .offcanvas.show .drawer-footer { display: none; }
  body.drawer-open .mobile-action-bar { display: block; }
}
/* 桌面：footer 正常流式显示 */
@media (min-width: 992px) {
  .drawer-footer { padding: 12px 0 2px; }
}


/* 手机端悬浮操作条：仅抽屉打开时显示（body:has 控制） */
.mobile-action-bar {
  display: none;
  position: fixed; left: 10px; right: 10px; bottom: calc(10px + env(safe-area-inset-bottom));
  z-index: 1055;
  background: rgba(255,255,255,.97);
  border-radius: 14px;
  box-shadow: 0 -2px 20px rgba(23,30,54,.16);
  padding: 10px;
}
@media (min-width: 992px) { .mobile-action-bar { display: none !important; } }

/* ---------- PWA / 刘海屏安全区 ---------- */
@supports (padding: env(safe-area-inset-top)) {
  body { padding-left: env(safe-area-inset-left); padding-right: env(safe-area-inset-right); }
}