/* ===== settings.css — QZSTUDIO 设置页面样式 ===== */

/* ===== Reset & Variables ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --green: #00e676;
  --green-dark: #00c853;
  --green-glow: rgba(0, 230, 118, 0.3);
  --purple: #d500f9;
  --purple-dark: #aa00ff;
  --purple-glow: rgba(213, 0, 249, 0.3);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 22px;
  --transition-fast: 0.2s ease;
  --transition-med: 0.35s ease;
  --transition-slow: 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

[data-theme="dark"] {
  --bg-primary: #0a0e1a;
  --bg-secondary: #141c30;
  --bg-card: rgba(25, 30, 50, 0.55);
  --bg-surface: rgba(20, 25, 45, 0.82);
  --text-primary: #f0f2f6;
  --text-secondary: #aab2c8;
  --text-muted: rgba(255, 255, 255, 0.33);
  --border-glass: rgba(255, 255, 255, 0.06);
  --border-glass-strong: rgba(255, 255, 255, 0.12);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.42);
  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.3);
  --glow-green: 0 0 40px rgba(0, 230, 118, 0.05);
  --glow-purple: 0 0 40px rgba(213, 0, 249, 0.04);
}

[data-theme="light"] {
  --bg-primary: #ffffff;
  --bg-secondary: #f0f2f5;
  --bg-card: rgba(255, 255, 255, 0.76);
  --bg-surface: rgba(248, 249, 252, 0.92);
  --text-primary: #1c1e26;
  --text-secondary: #5a6278;
  --text-muted: rgba(0, 0, 0, 0.2);
  --border-glass: rgba(0, 0, 0, 0.05);
  --border-glass-strong: rgba(0, 0, 0, 0.08);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.03);
  --glow-green: 0 0 30px rgba(0, 230, 118, 0.006);
  --glow-purple: 0 0 30px rgba(213, 0, 249, 0.004);
}

html, body {
  height: 100%;
  font-family: -apple-system, 'SF Pro Display', 'PingFang SC', 'Helvetica Neue', system-ui, sans-serif;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;
  transition: background var(--transition-med), color var(--transition-med);
}

/* ===== Layout ===== */
.settings-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  max-width: 600px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ===== Header ===== */
.settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--border-glass);
}

.settings-back {
  width: 38px;
  height: 38px;
  border: none;
  border-radius: 50%;
  background: rgba(126, 131, 152, 0.078);
  color: var(--text-secondary);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, transform 0.2s ease;
}

.settings-back:hover {
  background: rgba(127, 133, 156, 0.16);
  transform: scale(1.05);
}

.settings-title {
  font-size: 1.2rem;
  font-weight: 620;
  background: linear-gradient(90deg, var(--green), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.settings-header-spacer {
  width: 38px;
}

/* ===== Main ===== */
.settings-main {
  flex: 1;
  padding: 16px 0 32px;
}

/* ===== Section ===== */
.settings-section {
  background: var(--bg-surface);
  backdrop-filter: blur(24px) saturate(170%);
  -webkit-backdrop-filter: blur(24px) saturate(170%);
  border-radius: var(--radius);
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-sm);
  padding: 20px 24px;
  margin-bottom: 16px;
  transition: background var(--transition-med), border-color var(--transition-med);
}

.settings-section-title {
  font-size: 0.9rem;
  font-weight: 540;
  color: var(--text-muted);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* ===== Item ===== */
.settings-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
}

.settings-item + .settings-item {
  border-top: 1px solid var(--border-glass);
  margin-top: 4px;
  padding-top: 12px;
}

.settings-item-info {
  flex: 1;
  min-width: 0;
}

.settings-item-label {
  display: block;
  font-size: 0.92rem;
  color: var(--text-primary);
  font-weight: 470;
}

.settings-item-desc {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.settings-item-control {
  flex-shrink: 0;
  margin-left: 16px;
}

/* ===== Segmented Control ===== */
.settings-segmented {
  display: flex;
  gap: 4px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 10px;
  padding: 3px;
  border: 1px solid var(--border-glass);
}

.settings-segment {
  padding: 7px 14px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.82rem;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
  white-space: nowrap;
}

.settings-segment:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.settings-segment.active {
  background: linear-gradient(135deg, rgba(0, 230, 118, 0.12), rgba(213, 0, 249, 0.1));
  color: var(--green);
  font-weight: 510;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

/* ===== Switch ===== */
.settings-switch {
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}

.settings-switch input {
  display: none;
}

.settings-switch-track {
  width: 44px;
  height: 24px;
  border-radius: 12px;
  background: var(--border-glass-strong);
  position: relative;
  transition: background 0.25s ease;
  display: block;
}

.settings-switch input:checked + .settings-switch-track {
  background: linear-gradient(135deg, var(--green), var(--purple));
}

.settings-switch-knob {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #fff;
  position: absolute;
  top: 2px;
  left: 2px;
  transition: left 0.25s ease;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

.settings-switch input:checked + .settings-switch-track .settings-switch-knob {
  left: 22px;
}

/* ===== Slider ===== */
.settings-slider-group {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 160px;
}

.settings-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--border-glass-strong);
  outline: none;
  transition: background 0.2s ease;
}

.settings-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green), var(--purple));
  cursor: pointer;
  box-shadow: 0 0 12px var(--green-glow);
  transition: transform 0.15s ease;
}

.settings-slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.settings-slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green), var(--purple));
  cursor: pointer;
  border: none;
}

.settings-slider-value {
  font-size: 0.85rem;
  color: var(--text-muted);
  min-width: 40px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* ===== About ===== */
.settings-about {
  text-align: center;
  padding: 8px 0;
}

.settings-about-brand {
  font-size: 1.4rem;
  font-weight: 680;
  letter-spacing: 3px;
  margin-bottom: 8px;
  display: flex;
  justify-content: center;
  gap: 2px;
}

.settings-about-version {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.settings-about-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.settings-about-copy {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ===== Footer ===== */
.settings-footer {
  text-align: center;
  padding: 16px 0 32px;
  font-size: 0.78rem;
  color: var(--text-muted);
  opacity: 0.6;
}

/* ===== Responsive ===== */
@media (max-width: 440px) {
  .settings-wrapper {
    padding: 0 12px;
  }

  .settings-section {
    padding: 16px 18px;
  }

  .settings-segment {
    padding: 6px 10px;
    font-size: 0.78rem;
  }

  .settings-slider-group {
    min-width: 120px;
  }
}