/* ==========================================================================
   Theme Switcher - 6 套配色方案
   用法：<html data-theme="dark" data-palette="forest">
   ========================================================================== */

/* ---------- 1) 预设调色板（浅色 / 深色 共享色调） ---------- */
:root[data-palette="forest"] { --bulma-primary-h: 145; --bulma-primary-s: 63%; --bulma-primary-l: 42%; --bulma-link-h: 145; --bulma-link-s: 63%; --bulma-link-l: 42%; }
:root[data-palette="sakura"] { --bulma-primary-h: 340; --bulma-primary-s: 82%; --bulma-primary-l: 62%; --bulma-link-h: 340; --bulma-link-s: 82%; --bulma-link-l: 62%; }
:root[data-palette="ocean"] { --bulma-primary-h: 200; --bulma-primary-s: 90%; --bulma-primary-l: 48%; --bulma-link-h: 200; --bulma-link-s: 90%; --bulma-link-l: 48%; }
:root[data-palette="sunset"] { --bulma-primary-h: 25;  --bulma-primary-s: 95%; --bulma-primary-l: 55%; --bulma-link-h: 25;  --bulma-link-s: 95%; --bulma-link-l: 55%; }

/* ---------- 2) 深色下的卡片/背景微调（让不同配色都协调） ---------- */
:root[data-palette="forest"][data-theme="dark"] { --bg-dark: #0f1a14; --bg-dark-card: #15241b; --bg-dark-card-hover: #1c2e22; }
:root[data-palette="sakura"][data-theme="dark"] { --bg-dark: #1a1216; --bg-dark-card: #241820; --bg-dark-card-hover: #2e1f2a; }
:root[data-palette="ocean"][data-theme="dark"]  { --bg-dark: #0f141a; --bg-dark-card: #141c24; --bg-dark-card-hover: #1a2430; }
:root[data-palette="sunset"][data-theme="dark"] { --bg-dark: #1a140f; --bg-dark-card: #241b14; --bg-dark-card-hover: #2e241a; }

/* ---------- 3) 左下角主题按钮（浮动） ---------- */
#theme-fab {
  position: fixed;
  left: 1.25rem;
  bottom: 1.25rem;
  z-index: 999;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  color: var(--bulma-primary-invert);
  background: var(--bulma-primary);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
  transition: transform .2s ease, box-shadow .2s ease;
}
#theme-fab:hover { transform: translateY(-2px) scale(1.05); box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25); }
#theme-fab:active { transform: scale(0.97); }

/* ---------- 4) 弹出的主题面板 ---------- */
#theme-panel {
  position: fixed;
  left: 1.25rem;
  bottom: 5rem;
  z-index: 998;
  background: var(--bulma-scheme-main);
  border: 1px solid var(--bulma-border-weak);
  border-radius: var(--bulma-radius-large);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.16);
  padding: 1rem;
  width: 260px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all .2s ease;
}
[data-theme="dark"] #theme-panel {
  background: var(--bg-dark-card);
  border-color: var(--border-dark);
}
#theme-panel.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
#theme-panel .panel-title {
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--bulma-text-light);
  margin-bottom: .5rem;
}
#theme-panel .panel-divider { height: 1px; background: var(--bulma-border-weak); margin: .75rem 0; }

/* ---------- 5) 模式按钮（亮 / 暗） ---------- */
.mode-row { display: flex; gap: .5rem; }
.mode-btn {
  flex: 1;
  padding: .55rem 0;
  border-radius: var(--bulma-radius);
  border: 1px solid var(--bulma-border-weak);
  background: var(--bulma-scheme-main-bis);
  color: var(--bulma-text);
  cursor: pointer;
  font-size: .8rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .35rem;
  transition: all .15s ease;
}
.mode-btn:hover { border-color: var(--bulma-primary); color: var(--bulma-primary); }
.mode-btn.is-active {
  background: var(--bulma-primary);
  color: var(--bulma-primary-invert);
  border-color: var(--bulma-primary);
  font-weight: 600;
}
[data-theme="dark"] .mode-btn { background: var(--bg-dark-card-hover); border-color: var(--border-dark); color: #ccc; }

/* ---------- 6) 配色按钮（六种风格） ---------- */
.palette-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .5rem; }
.palette-btn {
  height: 2.6rem;
  border-radius: var(--bulma-radius);
  border: 2px solid transparent;
  cursor: pointer;
  position: relative;
  transition: transform .15s ease, border-color .15s ease;
}
.palette-btn:hover { transform: translateY(-2px); }
.palette-btn.is-active { border-color: var(--bulma-text-strong); box-shadow: 0 0 0 3px var(--bulma-scheme-main); }
.palette-btn::after {
  content: attr(data-label);
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .7rem;
  font-weight: 600;
  color: rgba(0,0,0,.65);
  text-shadow: 0 1px 0 rgba(255,255,255,.4);
}
[data-theme="dark"] .palette-btn::after { color: rgba(255,255,255,.85); text-shadow: 0 1px 0 rgba(0,0,0,.4); }

/* 六种预览色块 */
.palette-btn[data-palette="default"] { background: linear-gradient(135deg,#00d1b2,#42b883); }
.palette-btn:root[data-palette="forest"] { background: linear-gradient(135deg,#3f8f5c,#a3d977); }
.palette-btn:root[data-palette="sakura"] { background: linear-gradient(135deg,#f78fb3,#ffd1dc); }
.palette-btn:root[data-palette="ocean"] { background: linear-gradient(135deg,#2196f3,#4fc3f7); }
.palette-btn:root[data-palette="sunset"] { background: linear-gradient(135deg,#ff7043,#ffb74d); }
.palette-btn[data-palette="mono"]    { background: linear-gradient(135deg,#4b5563,#d1d5db); }

/* ===== 修复原生深色导航栏 ===== */
[data-theme="dark"] .navbar.is-fixed-top {
  background-color: rgba(18, 18, 18, 0.75) !important;
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 10px rgba(0, 0, 0, 0.3);
}

/* ===== 修复深色模式下的浅色横幅（Hero） ===== */
[data-theme="dark"] .hero.is-light {
  background-color: var(--bg-dark) !important;
  border-bottom: 1px solid var(--border-dark);
  color: var(--bulma-text-strong);
}
[data-theme="dark"] .hero.is-light .title {
  color: #f3f4f6 !important;
}
[data-theme="dark"] .hero.is-light .subtitle {
  color: var(--text-dark-muted) !important;
}

/* ===== 强制强化面板按钮的选中状态 ===== */
#theme-panel .mode-btn.is-active {
  background-color: var(--bulma-primary) !important;
  color: var(--bulma-primary-invert) !important;
  border: 2px solid var(--bulma-primary) !important;
  font-weight: 700 !important;
}

#theme-panel .palette-btn.is-active {
  border: 3px solid #ffffff !important;
  box-shadow: 0 0 0 2px #000000, 0 0 10px rgba(0,0,0,0.5) !important;
  transform: scale(1.05) !important;
  z-index: 1;
}


/* ================= 特效面板样式 ================= */
.effect-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: .5rem;
}
.effect-btn {
  height: 2.6rem;
  border-radius: var(--bulma-radius);
  border: 1px solid var(--bulma-border-weak);
  background: var(--bulma-scheme-main-bis);
  color: var(--bulma-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all .15s ease;
}
.effect-btn:hover { border-color: var(--bulma-primary); color: var(--bulma-primary); }
[data-theme="dark"] .effect-btn { background: var(--bg-dark-card-hover); border-color: var(--border-dark); color: #ccc; }

#theme-panel .effect-btn.is-active {
  background-color: var(--bulma-primary) !important;
  color: var(--bulma-primary-invert) !important;
  border-color: var(--bulma-primary) !important;
  box-shadow: 0 0 8px var(--bulma-primary);
}

/* ================= 透明度滑块样式 ================= */
.opacity-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
  font-size: .8rem;
  color: var(--bulma-text-light);
}
.opacity-row input[type="range"] {
  -webkit-appearance: none;
  width: 70%;
  height: 6px;
  border-radius: 3px;
  background: var(--bulma-border-weak);
  outline: none;
}
[data-theme="dark"] .opacity-row input[type="range"] {
  background: var(--border-dark);
}
.opacity-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bulma-primary);
  cursor: pointer;
  box-shadow: 0 0 4px rgba(0,0,0,0.3);
  transition: transform .1s;
}
.opacity-row input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

/* ================= 终极滑块样式覆盖 ================= */
.opacity-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1rem;
  font-size: .8rem;
  color: var(--bulma-text-light);
  position: relative;
  z-index: 10; /* 确保不被遮挡 */
}

.opacity-row input[type="range"] {
  -webkit-appearance: none !important;
  appearance: none !important;
  width: 70% !important;
  height: 6px !important;
  border-radius: 3px !important;
  background: var(--bulma-border-weak) !important;
  outline: none !important;
  cursor: pointer !important;
  pointer-events: auto !important;
}
[data-theme="dark"] .opacity-row input[type="range"] {
  background: var(--border-dark) !important;
}

.opacity-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none !important;
  appearance: none !important;
  width: 16px !important;
  height: 16px !important;
  border-radius: 50% !important;
  background: var(--bulma-primary) !important;
  cursor: pointer !important;
  box-shadow: 0 0 6px rgba(0,0,0,0.4) !important;
  transition: transform .1s !important;
}
.opacity-row input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2) !important;
}