/* ============================================================
   base.css — 全局重置、CSS 变量（深色+浅色）、容器、按钮、来源面板、页脚
   ============================================================ */

* { margin: 0; padding: 0; box-sizing: border-box; }

/* ── 深色模式（默认）变量：墨褐 + 古铜 + 宣纸暖白 ── */
:root {
  --bg-0: #16130f;
  --bg-1: #1c1a17;
  --bg-2: #2b2620;
  --bg-grad: linear-gradient(135deg, #1c1a17 0%, #2b2620 45%, #1a1816 100%);

  --container-bg: rgba(255, 245, 220, 0.05);
  --container-br: rgba(200, 169, 106, 0.14);
  --container-sh: 0 20px 60px rgba(0, 0, 0, 0.45);

  --text-title: #c8a96a;            /* 古铜色：标题、卦名、激活 */
  --text-title-soft: #b8956e;       /* 古铜（稍暗） */
  --text-main: rgba(235, 225, 205, 0.85);    /* 正文：暖白 */
  --text-sub:  rgba(235, 225, 205, 0.55);    /* 次级文字 */
  --text-mute: rgba(235, 225, 205, 0.32);    /* 弱化文字 */
  --text-faint: rgba(235, 225, 205, 0.18);   /* 极淡：禁用、占位 */

  --accent: #c8a96a;                /* 古铜：主强调 */
  --accent-soft: rgba(200, 169, 106, 0.4);
  --accent-bg:   rgba(200, 169, 106, 0.12);
  --accent-bg-hi: rgba(200, 169, 106, 0.22);

  --chip-bg:     rgba(255, 245, 220, 0.04);
  --chip-br:     rgba(255, 245, 220, 0.12);
  --chip-br-act: rgba(200, 169, 106, 0.45);

  --btn-bg: linear-gradient(135deg, #3a3020, #4a3d28);
  --btn-bg-hi: linear-gradient(135deg, #4a3d28, #5a4a32);
  --btn-text: #c8a96a;
  --btn-sh: 0 6px 18px rgba(200, 169, 106, 0.22);

  --danger: #c96a5a;

  --font-body:   "Microsoft YaHei UI", "微软雅黑", "STKaiti", "楷体", "KaiTi", "Songti SC", "SimSun", serif;
  --font-display: "Microsoft YaHei UI", "微软雅黑", "STKaiti", "楷体", "KaiTi", "Songti SC", "SimSun", serif;
}

/* ── 浅色模式：仿宣纸 ── */
:root[data-theme="light"] {
  --bg-0: #f4ecd8;
  --bg-1: #efe6d0;
  --bg-2: #f8f1de;
  --bg-grad: linear-gradient(135deg, #f4ecd8 0%, #efe6d0 45%, #f8f1de 100%);

  --container-bg: rgba(255, 253, 246, 0.85);
  --container-br: rgba(139, 69, 19, 0.14);
  --container-sh: 0 20px 60px rgba(120, 90, 40, 0.18);

  --text-title: #8b4513;             /* 赭红：标题、卦名 */
  --text-title-soft: #a0622a;
  --text-main: rgba(58, 47, 34, 0.92);
  --text-sub:  rgba(58, 47, 34, 0.62);
  --text-mute: rgba(58, 47, 34, 0.38);
  --text-faint: rgba(58, 47, 34, 0.22);

  --accent: #8b4513;
  --accent-soft: rgba(139, 69, 19, 0.38);
  --accent-bg:   rgba(139, 69, 19, 0.08);
  --accent-bg-hi: rgba(139, 69, 19, 0.16);

  --chip-bg:     rgba(139, 69, 19, 0.03);
  --chip-br:     rgba(139, 69, 19, 0.15);
  --chip-br-act: rgba(139, 69, 19, 0.45);

  --btn-bg: linear-gradient(135deg, #c9a97a, #b8925e);
  --btn-bg-hi: linear-gradient(135deg, #b8925e, #a87f4d);
  --btn-text: #fff8e5;
  --btn-sh: 0 6px 18px rgba(139, 69, 19, 0.22);

  --danger: #b04030;
}

body {
  font-family: var(--font-body);
  background: var(--bg-grad);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 20px;
  position: relative;
  color: var(--text-main);
}

/* ── 纹理层（body 全局：绢帛纤维 + 甲骨文八卦散点）── */
/*  透明度严格控制在 0.10 以内，不干扰文字阅读 */
body::before {
  content: "";
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 1;
  background-image:
    /* 第1层：云雷纹/八卦符号散点（手绘 SVG 四方连续，500px × 500px 一片） */
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='500' height='500' viewBox='0 0 500 500'><defs><g id='yun' fill='none' stroke='%23c8a96a' stroke-width='1.2' stroke-linecap='round' stroke-linejoin='round' opacity='0.28'><!-- 八卦 乾 ☰ --><g transform='translate(60 60) scale(0.9)'><line x1='0' y1='0' x2='46' y2='0'/><line x1='0' y1='10' x2='46' y2='10'/><line x1='0' y1='20' x2='46' y2='20'/></g><!-- 八卦 坤 ☷ --><g transform='translate(380 50) scale(0.9)'><line x1='0' y1='0' x2='18' y2='0'/><line x1='28' y1='0' x2='46' y2='0'/><line x1='0' y1='10' x2='18' y2='10'/><line x1='28' y1='10' x2='46' y2='10'/><line x1='0' y1='20' x2='18' y2='20'/><line x1='28' y1='20' x2='46' y2='20'/></g><!-- 八卦 坎 ☵ --><g transform='translate(230 110) scale(0.9)'><line x1='0' y1='0' x2='18' y2='0'/><line x1='28' y1='0' x2='46' y2='0'/><line x1='0' y1='10' x2='46' y2='10'/><line x1='0' y1='20' x2='18' y2='20'/><line x1='28' y1='20' x2='46' y2='20'/></g><!-- 八卦 离 ☲ --><g transform='translate(80 280) scale(0.9)'><line x1='0' y1='0' x2='46' y2='0'/><line x1='0' y1='10' x2='18' y2='10'/><line x1='28' y1='10' x2='46' y2='10'/><line x1='0' y1='20' x2='46' y2='20'/></g><!-- 八卦 震 ☳ --><g transform='translate(390 300) scale(0.9)'><line x1='0' y1='0' x2='18' y2='0'/><line x1='28' y1='0' x2='46' y2='0'/><line x1='0' y1='10' x2='18' y2='10'/><line x1='28' y1='10' x2='46' y2='10'/><line x1='0' y1='20' x2='46' y2='20'/></g><!-- 八卦 巽 ☴ --><g transform='translate(220 380) scale(0.9)'><line x1='0' y1='0' x2='46' y2='0'/><line x1='0' y1='10' x2='46' y2='10'/><line x1='0' y1='20' x2='18' y2='20'/><line x1='28' y1='20' x2='46' y2='20'/></g><!-- 八卦 艮 ☶ --><g transform='translate(60 420) scale(0.9)'><line x1='0' y1='0' x2='46' y2='0'/><line x1='0' y1='10' x2='18' y2='10'/><line x1='28' y1='10' x2='46' y2='10'/><line x1='0' y1='20' x2='18' y2='20'/><line x1='28' y1='20' x2='46' y2='20'/></g><!-- 八卦 兑 ☱ --><g transform='translate(400 430) scale(0.9)'><line x1='0' y1='0' x2='18' y2='0'/><line x1='28' y1='0' x2='46' y2='0'/><line x1='0' y1='10' x2='46' y2='10'/><line x1='0' y1='20' x2='46' y2='20'/></g><!-- 甲骨文符号：日、月、山、水、火 简化 --><circle cx='240' cy='250' r='14' fill='none' stroke='%23c8a96a' stroke-width='1.2' opacity='0.25'/><line x1='250' y1='238' x2='250' y2='262' opacity='0.2'/><line x1='238' y1='250' x2='262' y2='250' opacity='0.2'/><path d='M50 240 q10 -18 20 0 q10 -18 20 0' fill='none' stroke='%23c8a96a' stroke-width='1.2' opacity='0.22'/><path d='M430 250 q10 -18 20 0 q10 -18 20 0 t20 0 q10 -18 20 0' fill='none' stroke='%23c8a96a' stroke-width='1.2' opacity='0.22'/><path d='M150 470 l6 -14 l6 14 l-12 0 z' fill='none' stroke='%23c8a96a' stroke-width='1.2' opacity='0.22'/><path d='M170 470 l10 -22 l10 22 z' fill='none' stroke='%23c8a96a' stroke-width='1.2' opacity='0.22'/><path d='M330 60 l5 -10 l5 10 l5 -10 l5 10 l5 -10 l5 10 l-30 0 z' fill='none' stroke='%23c8a96a' stroke-width='1.2' opacity='0.22'/></g></defs><use href='%23yun' transform='translate(0 0)'/></svg>"),
    /* 第2层：绢帛纤维噪点（径向小圆点模拟纤维颗粒） */
    radial-gradient(rgba(255,238,200,0.030) 1px, transparent 1px),
    radial-gradient(rgba(0,0,0,0.045) 1px, transparent 1px),
    radial-gradient(rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size:
    500px 500px,   /* 八卦散点：500px 一片，错落散置 */
    3px 3px,
    7px 7px,
    13px 13px;
  background-position:
    0 0,
    0 0,
    1px 2px,
    3px 5px;
  mix-blend-mode: overlay;
}
:root[data-theme="light"] body::before {
  background-image:
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='500' height='500' viewBox='0 0 500 500'><g fill='none' stroke='%238b4513' stroke-width='1.2' stroke-linecap='round' stroke-linejoin='round' opacity='0.18'><g transform='translate(60 60) scale(0.9)'><line x1='0' y1='0' x2='46' y2='0'/><line x1='0' y1='10' x2='46' y2='10'/><line x1='0' y1='20' x2='46' y2='20'/></g><g transform='translate(380 50) scale(0.9)'><line x1='0' y1='0' x2='18' y2='0'/><line x1='28' y1='0' x2='46' y2='0'/><line x1='0' y1='10' x2='18' y2='10'/><line x1='28' y1='10' x2='46' y2='10'/><line x1='0' y1='20' x2='18' y2='20'/><line x1='28' y1='20' x2='46' y2='20'/></g><g transform='translate(230 110) scale(0.9)'><line x1='0' y1='0' x2='18' y2='0'/><line x1='28' y1='0' x2='46' y2='0'/><line x1='0' y1='10' x2='46' y2='10'/><line x1='0' y1='20' x2='18' y2='20'/><line x1='28' y1='20' x2='46' y2='20'/></g><g transform='translate(80 280) scale(0.9)'><line x1='0' y1='0' x2='46' y2='0'/><line x1='0' y1='10' x2='18' y2='10'/><line x1='28' y1='10' x2='46' y2='10'/><line x1='0' y1='20' x2='46' y2='20'/></g><g transform='translate(390 300) scale(0.9)'><line x1='0' y1='0' x2='18' y2='0'/><line x1='28' y1='0' x2='46' y2='0'/><line x1='0' y1='10' x2='18' y2='10'/><line x1='28' y1='10' x2='46' y2='10'/><line x1='0' y1='20' x2='46' y2='20'/></g><g transform='translate(220 380) scale(0.9)'><line x1='0' y1='0' x2='46' y2='0'/><line x1='0' y1='10' x2='46' y2='10'/><line x1='0' y1='20' x2='18' y2='20'/><line x1='28' y1='20' x2='46' y2='20'/></g><g transform='translate(60 420) scale(0.9)'><line x1='0' y1='0' x2='46' y2='0'/><line x1='0' y1='10' x2='18' y2='10'/><line x1='28' y1='10' x2='46' y2='10'/><line x1='0' y1='20' x2='18' y2='20'/><line x1='28' y1='20' x2='46' y2='20'/></g><g transform='translate(400 430) scale(0.9)'><line x1='0' y1='0' x2='18' y2='0'/><line x1='28' y1='0' x2='46' y2='0'/><line x1='0' y1='10' x2='46' y2='10'/><line x1='0' y1='20' x2='46' y2='20'/></g><circle cx='240' cy='250' r='14' fill='none' stroke='%238b4513' stroke-width='1.2' opacity='0.16'/><path d='M50 240 q10 -18 20 0 q10 -18 20 0' fill='none' stroke='%238b4513' stroke-width='1.2' opacity='0.18'/><path d='M430 250 q10 -18 20 0 q10 -18 20 0 t20 0 q10 -18 20 0' fill='none' stroke='%238b4513' stroke-width='1.2' opacity='0.18'/></g></svg>"),
    radial-gradient(rgba(120,80,30,0.05) 1px, transparent 1px),
    radial-gradient(rgba(120,80,30,0.035) 1px, transparent 1px),
    radial-gradient(rgba(255,230,180,0.04) 1px, transparent 1px);
}

.container {
  background: var(--container-bg);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--container-br);
  border-radius: 24px;
  padding: 40px;
  max-width: 1000px;
  width: 100%;
  margin-top: 20px;
  box-shadow: var(--container-sh);
  position: relative;
}
.container::before, .container::after {
  /* 四角微饰：不显眼的古铜小线 */
  content: "";
  position: absolute;
  width: 18px; height: 18px;
  border: 1px solid var(--accent-soft);
}
.container::before { top: 10px; left: 10px; border-right: none; border-bottom: none; border-radius: 2px; }
.container::after  { bottom: 10px; right: 10px; border-left: none; border-top: none; border-radius: 2px; }

h1 {
  text-align: center;
  color: var(--text-title);
  font-size: 30px;
  margin-bottom: 6px;
  letter-spacing: 6px;
  font-family: var(--font-display);
  font-weight: normal;
}
.subtitle {
  text-align: center;
  color: var(--text-sub);
  font-size: 13px;
  margin-bottom: 28px;
  letter-spacing: 3px;
  font-family: var(--font-display);
}

/* ── 右上角主题切换 ── */
.theme-toggle {
  padding: 6px 12px; border-radius: 20px;
  border: 1px solid var(--chip-br);
  background: transparent; color: var(--text-sub);
  font-size: 12px; cursor: pointer; font-family: inherit;
  transition: all 0.25s; letter-spacing: 1px;
}
.theme-toggle:hover {
  color: var(--text-title); border-color: var(--accent-soft);
  background: var(--accent-bg);
}

/* ── 来源多选 ── */
.source-panel {
  background: var(--chip-bg);
  border: 1px solid var(--chip-br);
  border-radius: 14px;
  padding: 14px 18px;
  margin-bottom: 18px;
}
.source-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.source-panel-title {
  color: var(--text-mute);
  font-size: 12px;
  letter-spacing: 3px;
  font-family: var(--font-display);
}
.source-actions {
  display: flex;
  gap: 14px;
}
.source-actions a {
  color: var(--accent-soft);
  font-size: 12px;
  cursor: pointer;
  text-decoration: none;
  transition: color 0.2s;
  font-family: var(--font-display);
  letter-spacing: 1px;
}
.source-actions a:hover { color: var(--text-title); }
.source-checks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.source-checks label {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid var(--chip-br);
  color: var(--text-sub);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
  user-select: none;
  letter-spacing: 0.5px;
}
.source-checks label:hover {
  border-color: var(--accent-soft);
  color: var(--text-main);
}
.source-checks label.checked {
  border-color: var(--chip-br-act);
  background: var(--accent-bg);
  color: var(--text-title);
}

/* ── 按钮 ── */
.btn {
  display: block;
  width: 100%;
  padding: 16px;
  border: 1px solid var(--accent-soft);
  border-radius: 14px;
  font-size: 17px;
  cursor: pointer;
  transition: all 0.3s;
  letter-spacing: 4px;
  font-family: var(--font-display);
  color: var(--btn-text);
  background: var(--btn-bg);
  font-weight: normal;
}
.btn-primary:hover {
  background: var(--btn-bg-hi);
  box-shadow: var(--btn-sh);
  transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(0); box-shadow: none; }
.btn-primary:disabled {
  opacity: 0.5; cursor: not-allowed; transform: none; box-shadow: none;
}

/* ── 顶部栏 ── */
.top-bar {
  display: flex; align-items: flex-start; justify-content: space-between;
  flex-wrap: wrap; gap: 12px; margin-bottom: 20px;
}
.user-area { display: flex; gap: 8px; align-items: center; flex-shrink: 0; }
.user-btn {
  padding: 8px 16px; border-radius: 20px;
  border: 1px solid var(--accent-soft);
  background: transparent; color: var(--text-title);
  font-size: 13px; cursor: pointer; font-family: inherit;
  transition: all 0.2s; letter-spacing: 1px;
}
.user-btn:hover { background: var(--accent-bg); }
.user-btn.small { padding: 5px 12px; font-size: 12px; letter-spacing: 0.5px; }
.user-name { color: var(--text-title); font-size: 13px; letter-spacing: 1px; font-family: var(--font-display); }

/* ── 认证输入 ── */
.auth-input {
  width: 100%; padding: 12px; margin-top: 10px;
  border-radius: 10px; border: 1px solid var(--chip-br);
  background: var(--container-bg); color: var(--text-main);
  font-size: 14px; font-family: inherit;
  outline: none; transition: border-color 0.2s;
}
.auth-input::placeholder { color: var(--text-faint); }
.auth-input:focus { border-color: var(--accent-soft); }

/* ── 收藏卡片 ── */
.saved-item {
  background: var(--chip-bg);
  border: 1px solid var(--chip-br);
  border-radius: 12px; padding: 14px; margin-bottom: 10px;
  display: flex; align-items: center; justify-content: space-between;
  transition: background 0.2s;
  cursor: pointer;
}
.saved-item:hover { background: var(--accent-bg); }
.saved-item:active { background: var(--accent-bg-hi); }
.saved-info { flex: 1; }
.saved-name { color: var(--text-title); font-size: 15px; letter-spacing: 3px; font-family: var(--font-display); }
.saved-meta { color: var(--text-mute); font-size: 11px; margin-top: 4px; letter-spacing: 1px; }
.saved-note { color: var(--text-sub); font-size: 12px; margin-top: 6px; letter-spacing: 0.5px; line-height: 1.6; opacity: 0.9; }
.saved-del {
  background: none; border: none; color: var(--text-faint);
  font-size: 18px; cursor: pointer; padding: 4px 8px; transition: color 0.2s;
}
.saved-del:hover { color: var(--danger); }

/* ── 结果区域 ── */
.result { margin-top: 32px; display: none; }
.result.show { display: block; }
.loading {
  text-align: center;
  color: var(--text-title); padding: 40px;
  font-size: 14px; letter-spacing: 3px;
  animation: pulse 2.5s infinite;
  font-family: var(--font-display);
}
.error {
  text-align: center;
  color: var(--danger); padding: 16px;
  font-size: 14px;
}

/* ── 页脚 ── */
.footer {
  text-align: center;
  color: var(--text-faint);
  font-size: 11px; margin-top: 32px;
  letter-spacing: 2px;
  font-family: var(--font-display);
}
.beian {
  text-align: center;
  margin-top: 8px;
}
.beian a {
  color: var(--text-faint);
  font-size: 11px;
  text-decoration: none;
  letter-spacing: 1px;
}
.beian a:hover { color: var(--text-mute); }

/* ── 起卦面板：方式选择 + 参数 + 按钮 ── */
.divine-panel {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.divine-select {
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid var(--accent-soft);
  background: var(--container-bg);
  color: var(--text-title);
  font-size: 15px;
  font-family: var(--font-display);
  letter-spacing: 2px;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s;
}
.divine-select:focus { border-color: var(--accent); }
.divine-params {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.divine-input {
  width: 78px;
  padding: 10px 8px;
  border-radius: 10px;
  border: 1px solid var(--chip-br);
  background: var(--container-bg);
  color: var(--text-main);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
  text-align: center;
}
.divine-input:focus { border-color: var(--accent-soft); }
.dp-label {
  color: var(--text-mute);
  font-size: 13px;
  font-family: var(--font-display);
  letter-spacing: 1px;
}
.divine-panel .btn-primary {
  flex: 1;
  min-width: 140px;
  width: auto;
}

/* ── 历史记录清空按钮 ── */
.history-footer {
  text-align: center;
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid var(--chip-br);
}
.clear-btn {
  padding: 8px 20px;
  border-radius: 18px;
  border: 1px solid var(--chip-br);
  background: transparent;
  color: var(--text-mute);
  font-size: 12px;
  cursor: pointer;
  font-family: var(--font-display);
  letter-spacing: 1px;
  transition: all 0.2s;
}
.clear-btn:hover {
  color: var(--danger);
  border-color: var(--danger);
}

@keyframes pulse {
  0%,100% { opacity: 0.3; transform: scale(0.85); }
  50% { opacity: 1; transform: scale(1); }
}