/* ============================================================
   Klaw 共享设计基座 — 全站唯一 token 源
   每页第一个加载；页面级 CSS 通过级联覆盖/扩展
   ============================================================ */

:root {
  /* 色彩 — 暖米白家族 */
  --bg: #F6F6F1;
  --surface: #FFFFFF;
  --ink: #111827;
  --ink-soft: #4B5563;
  --muted: #9CA3AF;
  --border: #E5E7EB;
  --accent: #FF5701;
  --accent-strong: #E04D00;
  --accent-soft: rgba(255, 87, 1, 0.06);
  --accent-tint: #FFF3EC;
  --success: #16A34A;
  --success-soft: #F0FDF4;
  --success-border: #BBF7D0;
  --danger: #DC2626;
  --danger-soft: #FEF2F2;

  /* 字体 */
  --display: 'Playfair Display', 'Noto Serif SC', Georgia, serif; /* 仅营销页用 */
  --body: 'Noto Sans SC', -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SF Mono', monospace;

  /* 圆角 */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-pill: 999px;

  /* 阴影 — 三级海拔 */
  --shadow-sm: 0 1px 2px rgba(17, 24, 39, 0.05);
  --shadow-md: 0 1px 2px rgba(17, 24, 39, 0.04), 0 8px 24px rgba(17, 24, 39, 0.06);
  --shadow-lg: 0 16px 48px rgba(17, 24, 39, 0.14);

  /* 动效 */
  --ease: cubic-bezier(0.32, 0.72, 0, 1);

  /* 布局 / 层级 */
  --header-h: 56px;
  --z-drawer: 40;
  --z-modal: 50;
  --z-toast: 60;
}

/* ---------- 全局细节 ---------- */

::selection {
  background: rgba(255, 87, 1, 0.16);
}

/* 全站统一焦点环（此前为 0） */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* 菱镜品牌标志：保留各页面原有尺寸，只统一图形。 */
.logo .mark,
.wb-logo .mark,
.aw-header .mark {
  display: inline-block;
  flex: 0 0 auto;
  border-radius: 0 !important;
  background-color: transparent !important;
  background-image: url('/assets/lingjing-mark.svg?v=2') !important;
  background-repeat: no-repeat !important;
  background-position: center !important;
  background-size: contain !important;
  box-shadow: none !important;
  transform: none !important;
}

/* 细滚动条 */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(17, 24, 39, 0.18) transparent;
}
*::-webkit-scrollbar { width: 8px; height: 8px; }
*::-webkit-scrollbar-thumb {
  background: rgba(17, 24, 39, 0.16);
  border-radius: 999px;
}
*::-webkit-scrollbar-thumb:hover { background: rgba(17, 24, 39, 0.28); }
*::-webkit-scrollbar-track { background: transparent; }

/* 尊重减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- 共享按钮 ---------- */
/* 页面已有 .btn 定义时以后加载者为准；这里提供基线 */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  padding: 9px 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: transform 150ms var(--ease), background 150ms ease,
              border-color 150ms ease, opacity 150ms ease, box-shadow 150ms ease;
  user-select: none;
}
.btn:active { transform: translateY(0) scale(0.98); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 1px 2px rgba(224, 77, 0, 0.25);
}
.btn-accent:hover:not(:disabled) {
  background: var(--accent-strong);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(224, 77, 0, 0.3);
}

.btn-secondary {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--border);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--bg);
  border-color: var(--muted);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.btn-ghost {
  background: transparent;
  color: var(--ink-soft);
}
.btn-ghost:hover:not(:disabled) {
  background: var(--accent-soft);
  color: var(--ink);
}

.btn-danger {
  background: var(--surface);
  color: var(--danger);
  border-color: var(--border);
}
.btn-danger:hover:not(:disabled) {
  background: var(--danger-soft);
  border-color: var(--danger);
}

.btn-sm { padding: 6px 12px; font-size: 13px; }

/* ---------- 共享 Toast（右上角，统一） ---------- */

#toast-wrap {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: var(--ink);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  padding: 10px 16px;
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  animation: toast-in 0.28s var(--ease);
  max-width: 320px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.toast.toast-success { background: var(--success); }
.toast.toast-error { background: var(--danger); }
.toast.toast-leaving {
  animation: toast-out 0.22s var(--ease) forwards;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateY(-8px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}
@keyframes toast-out {
  to { opacity: 0; transform: translateY(-6px) scale(0.97); }
}

/* ---------- 加载骨架 ---------- */

.skeleton {
  position: relative;
  overflow: hidden;
  background: rgba(17, 24, 39, 0.06);
  border-radius: var(--r-sm);
}
.skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.7), transparent);
  animation: skeleton-shimmer 1.4s infinite;
}
@keyframes skeleton-shimmer {
  from { transform: translateX(-100%); }
  to { transform: translateX(100%); }
}

/* ---------- 滚动显现（配合 ui.js revealOnScroll） ---------- */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}