/* ============================================================
   全站统一对话框组件 · 替代浏览器原生 alert / confirm / prompt
   前台与后台共用，视觉与既有 .modal-box（举报弹窗）保持一致
   依赖变量：--primary --primary-600 --primary-soft --bad --bad-bg
             --ok --ok-bg --warn --warn-bg --ink --ink-2 --muted --faint
             --line --line-2 --surface --soft --radius --font
   ============================================================ */

/* 打开弹窗时锁定背景滚动（由 JS 加在 <html> 上） */
html.rsm-lock,
html.rsm-lock body { overflow: hidden !important; }

/* ---------- 遮罩 ---------- */
.rsm-mask {
  position: fixed;
  inset: 0;
  z-index: 1300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(15, 23, 42, .55);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
  animation: rsmFade .16s ease;
}

/* ---------- 容器 ---------- */
.rsm-box {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 424px;
  max-height: calc(100vh - 40px);
  max-height: calc(100dvh - 40px);
  background: var(--surface);
  color: var(--ink-2);
  border-radius: 16px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, .32);
  overflow: hidden;
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.7;
  animation: rsmPop .2s cubic-bezier(.2, .8, .3, 1);
}
.rsm-wide { max-width: 520px; }
/* 容器仅用于接收程序化焦点，不显示焦点环（按钮仍保留 :focus-visible 环） */
.rsm-box:focus { outline: none; }

/* ---------- 头部 ---------- */
.rsm-head {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  padding: 20px 22px 0;
}
.rsm-head h3 {
  flex: 1;
  min-width: 0;
  margin: 0;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--ink);
  word-break: break-word;
}
.rsm-close {
  flex: none;
  width: 30px;
  height: 30px;
  margin: -3px -4px 0 0;
  border: none;
  border-radius: 8px;
  background: var(--soft);
  color: var(--muted);
  font-size: 13px;
  line-height: 1;
  cursor: pointer;
  transition: background .12s, color .12s;
}
@media (hover:hover) and (pointer:fine){.rsm-close:hover { background: var(--line); color: var(--ink); }}

/* ---------- 图标 ---------- */
.rsm-ico {
  flex: none;
  width: 34px;
  height: 34px;
  margin-top: -2px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 17px;
  font-weight: 700;
  line-height: 1;
}
.rsm-ico svg { width: 18px; height: 18px; display: block; }
.rsm-ico-info     { background: var(--primary-soft); color: var(--primary-600); }
.rsm-ico-ok       { background: var(--ok-bg);        color: var(--ok); }
.rsm-ico-warn     { background: var(--warn-bg);      color: var(--warn); }
.rsm-ico-danger   { background: var(--bad-bg);       color: var(--bad); }

/* ---------- 内容区 ---------- */
.rsm-body {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 12px 22px 2px;
  -webkit-overflow-scrolling: touch;
}
.rsm-head:not(:has(.rsm-ico)) + .rsm-body { padding-top: 14px; }
.rsm-box.rsm-noicon .rsm-body { padding-top: 14px; }
.rsm-msg {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-2);
  white-space: pre-wrap;
  word-break: break-word;
}
.rsm-msg:empty { display: none; }
.rsm-body > .rsm-msg + .rsm-fields { margin-top: 14px; }

/* ---------- 表单字段 ---------- */
.rsm-fields { display: flex; flex-direction: column; gap: 13px; }
.rsm-field { display: flex; flex-direction: column; gap: 6px; }
.rsm-field > label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-2);
}
.rsm-field > label .rsm-req { color: var(--bad); margin-left: 2px; }
.rsm-input,
.rsm-textarea,
.rsm-select {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  color: var(--ink);
  font-family: inherit;
  font-size: 14px;
  line-height: 1.6;
  outline: none;
  transition: border-color .14s, box-shadow .14s;
}
.rsm-textarea { min-height: 92px; resize: vertical; }
.rsm-select { appearance: none; -webkit-appearance: none; padding-right: 30px; cursor: pointer; }
.rsm-input:focus,
.rsm-textarea:focus,
.rsm-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
}
.rsm-input:disabled,
.rsm-textarea:disabled { background: var(--soft); color: var(--faint); cursor: not-allowed; }
.rsm-field .rsm-tip {
  font-size: 12px;
  line-height: 1.6;
  color: var(--faint);
}
.rsm-field.is-invalid .rsm-input,
.rsm-field.is-invalid .rsm-textarea,
.rsm-field.is-invalid .rsm-select { border-color: var(--bad); }
.rsm-field.is-invalid .rsm-input:focus,
.rsm-field.is-invalid .rsm-textarea:focus { box-shadow: 0 0 0 3px var(--bad-bg); }

/* 勾选项 */
.rsm-check {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: 13.5px;
  color: var(--ink-2);
  cursor: pointer;
  user-select: none;
}
.rsm-check input { width: 16px; height: 16px; margin-top: 3px; accent-color: var(--primary); flex: none; cursor: pointer; }

/* 错误提示（全局） */
.rsm-hint {
  padding: 0 22px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--bad);
  min-height: 0;
}
.rsm-hint:not(:empty) { padding-top: 10px; }

/* ---------- 底部按钮 ---------- */
.rsm-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
  padding: 16px 22px 18px;
}
.rsm-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-width: 88px;
  padding: 9px 18px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  cursor: pointer;
  transition: filter .14s, background .14s, color .14s, border-color .14s, opacity .14s;
}
.rsm-btn:active { transform: translateY(.5px); }
.rsm-btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.rsm-btn[disabled] { opacity: .6; cursor: not-allowed; }
.rsm-btn-primary { background: var(--primary); color: #fff; }
@media (hover:hover) and (pointer:fine){.rsm-btn-primary:hover:not([disabled]) { background: var(--primary-600); }}
.rsm-btn-danger { background: var(--bad); color: #fff; }
@media (hover:hover) and (pointer:fine){.rsm-btn-danger:hover:not([disabled]) { filter: brightness(.92); }}
.rsm-btn-ghost { background: var(--soft); color: var(--ink-2); border-color: var(--line); }
@media (hover:hover) and (pointer:fine){.rsm-btn-ghost:hover:not([disabled]) { background: var(--line-2); color: var(--ink); }}

/* ---------- 轻提示（不依赖页面元素，后台也可用） ---------- */
.rsm-toast {
  position: fixed;
  left: 50%;
  top: 80px;
  z-index: 1400;
  max-width: min(84vw, 420px);
  padding: 10px 18px;
  border-radius: 10px;
  background: #0f172a;
  color: #f8fafc;
  font-family: var(--font);
  font-size: 13.5px;
  line-height: 1.6;
  text-align: center;
  box-shadow: 0 12px 32px rgba(0, 0, 0, .28);
  opacity: 0;
  transform: translateX(-50%) translateY(-12px);
  transition: opacity .18s, transform .18s;
  pointer-events: none;
  word-break: break-word;
}
.rsm-toast.is-show { opacity: 1; transform: translateX(-50%) translateY(0); }
.rsm-toast.is-ok  { background: var(--ok); color: #fff; }
.rsm-toast.is-err { background: var(--bad); color: #fff; }

/* ---------- 动画 ---------- */
@keyframes rsmFade { from { opacity: 0; } to { opacity: 1; } }
@keyframes rsmPop {
  from { opacity: 0; transform: translateY(10px) scale(.98); }
  to   { opacity: 1; transform: none; }
}
@keyframes rsmUp {
  from { opacity: 0; transform: translateY(100%); }
  to   { opacity: 1; transform: none; }
}

/* ---------- 移动端：底部抽屉式 ---------- */
@media (max-width: 560px) {
  .rsm-mask { align-items: flex-end; padding: 0; }
  .rsm-box {
    max-width: none;
    max-height: calc(100dvh - 48px);
    border-radius: 18px 18px 0 0;
    animation: rsmUp .24s cubic-bezier(.2, .8, .3, 1);
  }
  .rsm-head { padding: 18px 18px 0; }
  .rsm-head h3 { font-size: 16px; }
  .rsm-body { padding: 12px 18px 2px; }
  .rsm-hint { padding: 0 18px; }
  .rsm-foot {
    padding: 14px 18px calc(16px + env(safe-area-inset-bottom, 0px));
    gap: 8px;
  }
  .rsm-btn { flex: 1 1 0; min-width: 0; padding: 11px 12px; }
}

/* ---------- 夜间模式补充 ---------- */
[data-theme="dark"] .rsm-mask { background: rgba(2, 6, 16, .68); }
[data-theme="dark"] .rsm-box { box-shadow: 0 24px 64px rgba(0, 0, 0, .55); }
[data-theme="dark"] .rsm-close { background: var(--soft); color: var(--muted); }
@media (hover:hover) and (pointer:fine){[data-theme="dark"] .rsm-close:hover { background: #2f3d59; color: var(--ink); }}
[data-theme="dark"] .rsm-toast { background: #26324a; color: #e9eef8; }

/* ---------- 减少动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .rsm-mask, .rsm-box, .rsm-toast { animation: none !important; transition: none !important; }
}
