/**
 * SoundSeeker Cookie Consent 样式
 *
 * 设计目标:
 *   - 不与 landing 主题硬冲突 (用 ss-cc-* 前缀, 不假设主题 token)
 *   - 暗/亮主题用 prefers-color-scheme 自适应
 *   - 移动端 banner 横铺底部, 桌面端右下浮窗
 *   - 偏好中心模态层 (backdrop + center panel)
 *   - 浮动 FAB 不挡内容, 右下角
 *
 * 与 landing 主题集成: 如果未来想统一品牌色,
 * 用 :root 暴露 --ss-cc-accent / --ss-cc-bg / --ss-cc-fg 让 landing override 即可。
 */

#ss-cookie-banner,
#ss-cookie-prefs,
#ss-cookie-fab {
  /* design tokens — 默认值, 可被 landing :root 覆盖 */
  --ss-cc-bg: #ffffff;
  --ss-cc-fg: #1a1a1a;
  --ss-cc-muted: #555;
  --ss-cc-border: #e5e5e5;
  --ss-cc-accent: #2563eb;
  --ss-cc-accent-fg: #ffffff;
  --ss-cc-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
  --ss-cc-radius: 12px;
  --ss-cc-radius-sm: 8px;
  --ss-cc-font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', 'Noto Sans JP', 'Noto Sans KR', sans-serif;

  font-family: var(--ss-cc-font);
  color: var(--ss-cc-fg);
  box-sizing: border-box;
}

#ss-cookie-banner *,
#ss-cookie-prefs *,
#ss-cookie-fab * {
  box-sizing: border-box;
}

@media (prefers-color-scheme: dark) {
  #ss-cookie-banner,
  #ss-cookie-prefs,
  #ss-cookie-fab {
    --ss-cc-bg: #1a1a1a;
    --ss-cc-fg: #e5e5e5;
    --ss-cc-muted: #999;
    --ss-cc-border: #2a2a2a;
    --ss-cc-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  }
}

/* ============ banner (底部横铺) ============ */
#ss-cookie-banner {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 2147483000; /* 几乎最高, 但低于 alert dialog */
  background: var(--ss-cc-bg);
  color: var(--ss-cc-fg);
  border: 1px solid var(--ss-cc-border);
  border-radius: var(--ss-cc-radius);
  box-shadow: var(--ss-cc-shadow);
  animation: ss-cc-slide-up 0.3s ease-out;
}

@keyframes ss-cc-slide-up {
  from { transform: translateY(20px); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}

.ss-cc-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 20px 24px;
  max-width: 1200px;
  margin: 0 auto;
}

.ss-cc-text {
  flex: 1;
  min-width: 0;
}

.ss-cc-title {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.3;
}

.ss-cc-desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ss-cc-muted);
}

.ss-cc-link {
  color: var(--ss-cc-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.ss-cc-link:hover {
  text-decoration: none;
}

.ss-cc-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
  flex-wrap: wrap;
}

@media (max-width: 720px) {
  .ss-cc-inner {
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    padding: 16px 18px;
  }
  .ss-cc-actions {
    width: 100%;
  }
  .ss-cc-actions .ss-cc-btn {
    flex: 1;
    min-width: 0;
  }
}

/* ============ buttons ============ */
.ss-cc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 16px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  line-height: 1.2;
  border-radius: var(--ss-cc-radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  white-space: nowrap;
}

.ss-cc-btn:focus-visible {
  outline: 2px solid var(--ss-cc-accent);
  outline-offset: 2px;
}

.ss-cc-btn-primary {
  background: var(--ss-cc-accent);
  color: var(--ss-cc-accent-fg);
  border-color: var(--ss-cc-accent);
}

.ss-cc-btn-primary:hover {
  filter: brightness(1.08);
}

.ss-cc-btn-secondary {
  background: transparent;
  color: var(--ss-cc-fg);
  border-color: var(--ss-cc-border);
}

.ss-cc-btn-secondary:hover {
  background: rgba(0, 0, 0, 0.04);
}

@media (prefers-color-scheme: dark) {
  .ss-cc-btn-secondary:hover {
    background: rgba(255, 255, 255, 0.06);
  }
}

/* ============ preference center (modal) ============ */
#ss-cookie-prefs {
  position: fixed;
  inset: 0;
  z-index: 2147483100; /* 高于 banner */
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.ss-cc-prefs-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  animation: ss-cc-fade-in 0.2s ease-out;
}

@keyframes ss-cc-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.ss-cc-prefs-panel {
  position: relative;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--ss-cc-bg);
  color: var(--ss-cc-fg);
  border-radius: var(--ss-cc-radius);
  box-shadow: var(--ss-cc-shadow);
  padding: 24px;
  animation: ss-cc-pop-in 0.2s ease-out;
}

@keyframes ss-cc-pop-in {
  from { transform: scale(0.96); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}

.ss-cc-prefs-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.ss-cc-prefs-title {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

.ss-cc-prefs-close {
  background: transparent;
  border: none;
  font-size: 24px;
  line-height: 1;
  color: var(--ss-cc-muted);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
}

.ss-cc-prefs-close:hover {
  background: rgba(0, 0, 0, 0.06);
  color: var(--ss-cc-fg);
}

@media (prefers-color-scheme: dark) {
  .ss-cc-prefs-close:hover {
    background: rgba(255, 255, 255, 0.08);
  }
}

.ss-cc-prefs-intro {
  margin: 0 0 20px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ss-cc-muted);
}

/* category card */
.ss-cc-cat {
  padding: 14px 0;
  border-top: 1px solid var(--ss-cc-border);
}

.ss-cc-cat:first-of-type {
  border-top: none;
}

.ss-cc-cat-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}

.ss-cc-cat-title {
  font-size: 14px;
  font-weight: 600;
}

.ss-cc-cat-desc {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--ss-cc-muted);
}

.ss-cc-cat-badge {
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 12px;
  background: rgba(37, 99, 235, 0.1);
  color: var(--ss-cc-accent);
  font-weight: 500;
}

/* toggle switch */
.ss-cc-switch {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 22px;
  flex-shrink: 0;
}

.ss-cc-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.ss-cc-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: var(--ss-cc-border);
  border-radius: 22px;
  transition: background 0.2s;
}

.ss-cc-slider::before {
  content: '';
  position: absolute;
  height: 18px;
  width: 18px;
  left: 2px;
  top: 2px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.2s;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.ss-cc-switch input:checked + .ss-cc-slider {
  background: var(--ss-cc-accent);
}

.ss-cc-switch input:checked + .ss-cc-slider::before {
  transform: translateX(18px);
}

.ss-cc-switch input:focus-visible + .ss-cc-slider {
  outline: 2px solid var(--ss-cc-accent);
  outline-offset: 2px;
}

.ss-cc-prefs-actions {
  display: flex;
  gap: 8px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--ss-cc-border);
  flex-wrap: wrap;
}

.ss-cc-prefs-actions .ss-cc-btn {
  flex: 1;
  min-width: 100px;
}

/* ============ floating button (FAB) ============ */
#ss-cookie-fab {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 2147482900; /* 低于 banner/modal, 但高于普通内容 */
  background: var(--ss-cc-bg);
  color: var(--ss-cc-fg);
  border: 1px solid var(--ss-cc-border);
  border-radius: 999px;
  padding: 8px 14px;
  font-family: var(--ss-cc-font);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  box-shadow: var(--ss-cc-shadow);
  transition: transform 0.15s;
}

#ss-cookie-fab:hover {
  transform: translateY(-2px);
}

#ss-cookie-fab:focus-visible {
  outline: 2px solid var(--ss-cc-accent);
  outline-offset: 2px;
}

@media (max-width: 720px) {
  #ss-cookie-fab {
    right: 12px;
    bottom: 12px;
    padding: 8px 12px;
    font-size: 11px;
  }
}