/* ===== 浩云 - 共享设计系统 ===== */
/* 暗色/亮色双主题 CSS 自定义属性 */

/* ---- 暗色主题（默认） ---- */
:root, [data-theme="dark"] {
  /* 背景层级 */
  --bg-primary: #0f0c29;
  --bg-secondary: rgba(255, 255, 255, 0.05);
  --bg-tertiary: rgba(255, 255, 255, 0.08);
  --bg-input: rgba(255, 255, 255, 0.06);
  --bg-hover: rgba(255, 255, 255, 0.12);
  --bg-overlay: rgba(0, 0, 0, 0.6);
  --bg-canvas: rgba(0, 0, 0, 0.2);
  --bg-modal: #1a1a2e;
  --bg-topbar: rgba(0, 0, 0, 0.3);

  /* 文字层级 */
  --text-primary: #e0e0e0;
  --text-secondary: #a0a0c0;
  --text-muted: #606080;
  --text-on-accent: #ffffff;

  /* 边框 */
  --border-primary: rgba(255, 255, 255, 0.12);
  --border-secondary: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(255, 255, 255, 0.30);
  --border-hover: rgba(255, 255, 255, 0.25);

  /* 强调色 */
  --accent-pink: #f093fb;
  --accent-red: #f5576c;
  --accent-warm: #fda085;
  --accent-green: #4cff8d;
  --accent-blue: #60d0ff;
  --accent-success: #4cff8d;
  --accent-danger: #ff6060;

  /* 渐变 */
  --gradient-body: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
  --gradient-title: linear-gradient(90deg, #f093fb, #f5576c, #fda085);
  --gradient-btn-primary: linear-gradient(135deg, #f093fb, #f5576c);

  /* 阴影 */
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.25);
  --shadow-modal: 0 12px 48px rgba(0, 0, 0, 0.4);
  --shadow-btn-hover: 0 8px 25px rgba(245, 87, 108, 0.3);

  /* 切换按钮 */
  --toggle-bg: rgba(255, 255, 255, 0.1);
  --toggle-fg: #fda085;
}

/* ---- 亮色主题 ---- */
[data-theme="light"] {
  --bg-primary: #f5f5f7;
  --bg-secondary: #ffffff;
  --bg-tertiary: #f0f0f2;
  --bg-input: #ffffff;
  --bg-hover: rgba(0, 0, 0, 0.04);
  --bg-overlay: rgba(0, 0, 0, 0.25);
  --bg-canvas: #fafafa;
  --bg-modal: #ffffff;
  --bg-topbar: rgba(255, 255, 255, 0.85);

  --text-primary: #1d1d1f;
  --text-secondary: #6e6e73;
  --text-muted: #aeaeb2;
  --text-on-accent: #ffffff;

  --border-primary: rgba(0, 0, 0, 0.10);
  --border-secondary: rgba(0, 0, 0, 0.06);
  --border-focus: rgba(0, 0, 0, 0.25);
  --border-hover: rgba(0, 0, 0, 0.18);

  --accent-pink: #6366f1;
  --accent-red: #ef4444;
  --accent-warm: #f59e0b;
  --accent-green: #22c55e;
  --accent-blue: #3b82f6;
  --accent-success: #22c55e;
  --accent-danger: #ef4444;

  --gradient-body: linear-gradient(135deg, #f5f5f7, #e8e8ed, #f0f0f4);
  --gradient-title: linear-gradient(90deg, #6366f1, #8b5cf6, #ec4899);
  --gradient-btn-primary: linear-gradient(135deg, #6366f1, #8b5cf6);

  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.06);
  --shadow-card-hover: 0 8px 30px rgba(0, 0, 0, 0.10);
  --shadow-modal: 0 16px 48px rgba(0, 0, 0, 0.12);
  --shadow-btn-hover: 0 8px 25px rgba(99, 102, 241, 0.3);

  --toggle-bg: rgba(0, 0, 0, 0.06);
  --toggle-fg: #6366f1;
}

/* ---- 全局重置 ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--gradient-body);
  color: var(--text-primary);
  min-height: 100vh;
  transition: background 0.3s ease, color 0.3s ease;
}

/* ---- 主题切换 FAB 按钮 ---- */
.theme-toggle-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--toggle-bg);
  border: 1px solid var(--border-primary);
  color: var(--toggle-fg);
  font-size: 20px;
  cursor: pointer;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform 0.2s ease, background 0.3s ease, color 0.3s ease;
  box-shadow: var(--shadow-card);
  line-height: 1;
}
.theme-toggle-fab:hover {
  transform: scale(1.1);
}
.theme-toggle-fab:active {
  transform: scale(0.95);
}

/* ---- 通用圆角 ---- */
:root {
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.2s ease;
  --transition-slow: 0.3s ease;
}