/* ==========================================================================
   VishvaX Music — Clean Minimal Settings Stylesheet (Apple Music / Spotify UX)
   Ultra-clean, Mobile-First, Charcoal Surfaces, Smooth Micro-Interactions
   ========================================================================== */

:root {
  --settings-bg: #09090b;
  --settings-card-bg: #121319;
  --settings-card-border: rgba(255, 255, 255, 0.08);
  --settings-card-hover: rgba(255, 255, 255, 0.12);
  --settings-text-primary: #ffffff;
  --settings-text-secondary: #94a3b8;
  --settings-text-tertiary: #64748b;
  --settings-accent: var(--accent-teal, #10b981);
  --settings-danger: #ef4444;
  --settings-radius-card: 16px;
  --settings-radius-sm: 10px;
  --settings-radius-full: 9999px;
  --settings-font: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --settings-mono: 'JetBrains Mono', monospace;
}

/* Base Page Setup */
body.settings-page {
  margin: 0;
  padding: 0;
  background-color: var(--settings-bg);
  color: var(--settings-text-primary);
  font-family: var(--settings-font);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
  overflow-x: hidden;
  min-height: 100vh;
  box-sizing: border-box;
}

/* Top Sticky Header */
.settings-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 56px;
  background: rgba(9, 9, 11, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--settings-card-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  box-sizing: border-box;
}

.settings-header-left {
  display: flex;
  align-items: center;
}

.settings-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  padding: 6px 8px 6px 0;
  border-radius: var(--settings-radius-sm);
  transition: opacity 0.15s ease;
}

.settings-brand:active {
  opacity: 0.75;
}

.settings-brand-back-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--settings-radius-full);
  background: rgba(255, 255, 255, 0.06);
  color: var(--settings-text-primary);
  transition: background 0.2s ease, transform 0.2s ease;
}

.settings-brand:hover .settings-brand-back-icon {
  background: rgba(255, 255, 255, 0.12);
  transform: translateX(-2px);
}

.settings-brand-logo {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  object-fit: cover;
}

.settings-brand-title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.brand-accent {
  color: var(--settings-accent);
}

.settings-brand-badge {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 7px;
  border-radius: var(--settings-radius-full);
  background: rgba(16, 185, 129, 0.12);
  color: var(--settings-accent);
  border: 1px solid rgba(16, 185, 129, 0.25);
}

/* Header Theme Toggle Button */
.btn-header-theme {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: var(--settings-radius-full);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--settings-card-border);
  color: var(--settings-text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
  padding: 0;
}

.btn-header-theme:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}

/* Main Vertically Scrollable Container */
.settings-container {
  max-width: 600px;
  margin: 0 auto;
  padding: 20px 16px calc(48px + env(safe-area-inset-bottom, 24px));
  box-sizing: border-box;
  width: 100%;
}

.settings-page-header {
  margin-bottom: 20px;
}

.settings-page-title {
  font-size: 1.85rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin: 0 0 4px 0;
  color: #ffffff;
}

.settings-page-subtitle {
  font-size: 0.88rem;
  color: var(--settings-text-secondary);
  margin: 0;
  line-height: 1.4;
}

/* Surface Section Cards */
.settings-section-card {
  background: var(--settings-card-bg);
  border: 1px solid var(--settings-card-border);
  border-radius: var(--settings-radius-card);
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
  transition: border-color 0.2s ease;
  box-sizing: border-box;
}

.settings-section-card:hover {
  border-color: var(--settings-card-hover);
}

.section-card-title {
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--settings-accent);
  margin-bottom: 12px;
}

/* User Account Section (Hero Profile Card) */
.profile-hero-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.profile-compact-header {
  display: flex;
  align-items: center;
  gap: 14px;
}

.avatar-wrapper {
  position: relative;
  width: 58px;
  height: 58px;
  flex-shrink: 0;
  border-radius: var(--settings-radius-full);
}

.avatar-img {
  width: 100%;
  height: 100%;
  border-radius: var(--settings-radius-full);
  object-fit: cover;
  background: #181924;
  border: 2px solid rgba(255, 255, 255, 0.12);
  box-sizing: border-box;
}

.avatar-status-dot {
  position: absolute;
  bottom: 2px;
  right: 2px;
  width: 12px;
  height: 12px;
  border-radius: var(--settings-radius-full);
  background: var(--settings-accent);
  border: 2px solid var(--settings-card-bg);
}

.profile-compact-info {
  flex: 1;
  min-width: 0;
}

.profile-name-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.profile-display-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: -0.01em;
}

.profile-verified-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.64rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--settings-radius-full);
  background: rgba(16, 185, 129, 0.12);
  color: var(--settings-accent);
  border: 1px solid rgba(16, 185, 129, 0.25);
  letter-spacing: 0.04em;
}

.profile-email-text {
  font-size: 0.84rem;
  color: var(--settings-text-secondary);
  margin-top: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.profile-compact-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding-top: 4px;
}

.btn-compact-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  height: 40px;
  padding: 0 14px;
  border-radius: 10px;
  font-size: 0.86rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--settings-card-border);
  color: #ffffff;
  cursor: pointer;
  transition: all 0.18s ease;
  box-sizing: border-box;
}

.btn-compact-action:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}

.btn-compact-action:active {
  transform: scale(0.98);
}

.btn-auth-action, .btn-danger-action {
  color: #f87171;
  background: rgba(239, 68, 68, 0.08);
  border-color: rgba(239, 68, 68, 0.2);
}

.btn-auth-action:hover, .btn-danger-action:hover {
  background: rgba(239, 68, 68, 0.16);
  border-color: rgba(239, 68, 68, 0.35);
  color: #fca5a5;
}

/* Setting Rows (Spotify/Apple Music row design) */
.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.setting-row:first-of-type {
  padding-top: 2px;
}

.setting-row:last-of-type {
  border-bottom: none;
  padding-bottom: 2px;
}

.setting-label-col {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

.setting-label {
  font-size: 0.92rem;
  font-weight: 600;
  color: #ffffff;
  line-height: 1.3;
}

.setting-subtext {
  font-size: 0.78rem;
  color: var(--settings-text-secondary);
  margin-top: 2px;
  line-height: 1.3;
}

.setting-control-col {
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

/* Custom Select Dropdowns */
.settings-select-pill {
  appearance: none;
  -webkit-appearance: none;
  background: rgba(255, 255, 255, 0.06);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  color: #ffffff;
  border: 1px solid var(--settings-card-border);
  border-radius: 8px;
  padding: 8px 30px 8px 12px;
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  outline: none;
  font-family: inherit;
}

.settings-select-pill:hover, .settings-select-pill:focus {
  border-color: rgba(255, 255, 255, 0.25);
  background-color: rgba(255, 255, 255, 0.1);
}

.settings-select-pill option {
  background-color: #161822;
  color: #ffffff;
}

/* Compact iOS-Style Toggle Switches */
.compact-toggle {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 26px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.compact-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.compact-toggle-slider {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255, 255, 255, 0.16);
  border-radius: var(--settings-radius-full);
  transition: background-color 0.24s cubic-bezier(0.16, 1, 0.3, 1);
}

.compact-toggle-slider::before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background-color: #ffffff;
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
  transition: transform 0.24s cubic-bezier(0.16, 1, 0.3, 1);
}

.compact-toggle input:checked + .compact-toggle-slider {
  background-color: var(--settings-accent);
}

.compact-toggle input:checked + .compact-toggle-slider::before {
  transform: translateX(18px);
}

/* Slider Rows */
.slider-row {
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
}

.slider-row-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.setting-badge-value {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--settings-accent);
  background: rgba(16, 185, 129, 0.12);
  padding: 3px 8px;
  border-radius: 6px;
  border: 1px solid rgba(16, 185, 129, 0.2);
  font-variant-numeric: tabular-nums;
}

.slider-track-wrap {
  width: 100%;
  display: flex;
  align-items: center;
}

.modern-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.12);
  border-radius: var(--settings-radius-full);
  outline: none;
  margin: 8px 0 4px;
  cursor: pointer;
  touch-action: none;
}

.modern-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #ffffff;
  border: 2px solid var(--settings-accent);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.5);
  cursor: pointer;
  transition: transform 0.15s ease;
}

.modern-slider::-webkit-slider-thumb:hover,
.modern-slider::-webkit-slider-thumb:active {
  transform: scale(1.2);
}

.modern-slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: #ffffff;
  border: 2px solid var(--settings-accent);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.5);
  cursor: pointer;
}

/* Appearance Theme Options (Compact Selector) */
.theme-selector-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}

.theme-card-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 4px;
  background: rgba(255, 255, 255, 0.04);
  border: 1.5px solid var(--settings-card-border);
  border-radius: var(--settings-radius-sm);
  cursor: pointer;
  transition: all 0.18s ease;
  color: var(--settings-text-secondary);
}

.theme-card-option:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  color: #ffffff;
}

.theme-card-option.active {
  background: rgba(16, 185, 129, 0.08);
  border-color: var(--settings-accent);
  color: #ffffff;
}

.theme-preview-chip {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.2);
}

.chip-amoled {
  background: #000000;
}

.chip-dark {
  background: #11131c;
}

.chip-light {
  background: #f8fafc;
  border-color: #cbd5e1;
}

.chip-system {
  background: linear-gradient(135deg, #000 50%, #fff 50%);
}

.theme-option-title {
  font-size: 0.78rem;
  font-weight: 600;
}

/* Accent Color Swatches */
.accent-row {
  padding-top: 10px;
}

.accent-swatches-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.accent-color-swatch {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.accent-color-swatch svg {
  display: none;
  stroke: #ffffff;
}

.accent-color-swatch.active {
  border-color: #ffffff;
  transform: scale(1.1);
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

.accent-color-swatch.active svg {
  display: block;
}

/* Action Rows & Subtle Row Buttons */
.btn-subtle-row {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--settings-card-border);
  color: #ffffff;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-subtle-row:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.22);
}

.btn-subtle-row:active {
  transform: scale(0.96);
}

.btn-subtle-danger {
  color: #f87171;
  background: rgba(239, 68, 68, 0.08);
  border-color: rgba(239, 68, 68, 0.2);
}

.btn-subtle-danger:hover {
  background: rgba(239, 68, 68, 0.18);
  border-color: rgba(239, 68, 68, 0.35);
}

/* Advanced Collapsible Accordion */
.settings-advanced-collapsible {
  cursor: pointer;
}

.advanced-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  outline: none;
  user-select: none;
  padding: 2px 0;
}

.advanced-summary::-webkit-details-marker {
  display: none;
}

.advanced-summary-left {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.90rem;
  font-weight: 700;
  color: var(--settings-text-secondary);
}

.advanced-summary-left svg {
  color: var(--settings-accent);
}

.chevron-icon {
  color: var(--settings-text-secondary);
  transition: transform 0.24s cubic-bezier(0.16, 1, 0.3, 1);
}

details[open] .chevron-icon {
  transform: rotate(180deg);
}

details[open] .advanced-summary-left {
  color: #ffffff;
}

.advanced-content {
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  margin-top: 12px;
  cursor: default;
}

/* Network Diagnostics Chips */
.diagnostic-group {
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.diagnostic-group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}

.diagnostic-pills-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.diag-chip {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--settings-card-border);
  border-radius: 8px;
  padding: 8px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.diag-label {
  font-size: 0.70rem;
  color: var(--settings-text-secondary);
  text-transform: uppercase;
}

.diag-val {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--settings-accent);
}

/* Avatar Presets Tray */
.avatar-presets-tray {
  padding-top: 12px;
}

.preset-avatars-list {
  display: flex;
  align-items: center;
  gap: 10px;
}

.preset-avatar-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--settings-card-border);
  padding: 0;
  overflow: hidden;
  cursor: pointer;
  background: #181924;
  transition: all 0.18s ease;
}

.preset-avatar-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.preset-avatar-btn.active, .preset-avatar-btn:hover {
  border-color: var(--settings-accent);
  transform: scale(1.08);
}

/* Toast Notifications */
.settings-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(30px);
  background: rgba(18, 19, 25, 0.96);
  border: 1px solid var(--settings-accent);
  color: #ffffff;
  padding: 10px 20px;
  border-radius: var(--settings-radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 15px rgba(16, 185, 129, 0.25);
  display: flex;
  align-items: center;
  gap: 8px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 99999;
}

.settings-toast.visible {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* Simple Footer */
.settings-simple-footer {
  text-align: center;
  padding: 24px 0 10px;
  color: var(--settings-text-tertiary);
  font-size: 0.78rem;
}

.settings-simple-footer p {
  margin: 0;
}

/* ==========================================================================
   MOBILE-FIRST RESPONSIVE TWEAKS (320px — 480px)
   ========================================================================== */
@media (max-width: 480px) {
  .settings-container {
    padding: 14px 12px calc(40px + env(safe-area-inset-bottom, 20px));
  }

  .settings-page-title {
    font-size: 1.6rem;
  }

  .settings-section-card {
    padding: 14px 12px;
    border-radius: 14px;
  }

  .theme-selector-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .diagnostic-pills-row {
    grid-template-columns: 1fr;
  }

  .profile-compact-header {
    gap: 12px;
  }

  .avatar-wrapper {
    width: 50px;
    height: 50px;
  }

  .profile-display-name {
    font-size: 1.05rem;
  }
}

/* Light Theme Overrides */
html.theme-light body.settings-page {
  --settings-bg: #f8fafc;
  --settings-card-bg: #ffffff;
  --settings-card-border: rgba(0, 0, 0, 0.08);
  --settings-card-hover: rgba(0, 0, 0, 0.15);
  --settings-text-primary: #0f172a;
  --settings-text-secondary: #475569;
  --settings-text-tertiary: #94a3b8;
  color: #0f172a;
  background-color: #f8fafc;
}

html.theme-light .settings-header {
  background: rgba(248, 250, 252, 0.92);
  border-bottom-color: rgba(0, 0, 0, 0.08);
}

html.theme-light .settings-brand-title {
  color: #0f172a;
}

html.theme-light .settings-page-title {
  color: #0f172a;
}

html.theme-light .setting-label {
  color: #0f172a;
}

html.theme-light .settings-brand-back-icon {
  background: rgba(0, 0, 0, 0.06);
  color: #0f172a;
}

html.theme-light .btn-header-theme {
  background: rgba(0, 0, 0, 0.06);
  border-color: rgba(0, 0, 0, 0.08);
  color: #0f172a;
}

html.theme-light .btn-compact-action,
html.theme-light .btn-subtle-row {
  background: rgba(0, 0, 0, 0.05);
  border-color: rgba(0, 0, 0, 0.1);
  color: #0f172a;
}

html.theme-light .settings-select-pill {
  background-color: #f1f5f9;
  border-color: #cbd5e1;
  color: #0f172a;
}

html.theme-light .settings-select-pill option {
  background-color: #ffffff;
  color: #0f172a;
}

html.theme-light .theme-card-option {
  background: rgba(0, 0, 0, 0.03);
  border-color: rgba(0, 0, 0, 0.08);
}

html.theme-light .theme-card-option:hover {
  background: rgba(0, 0, 0, 0.06);
  color: #0f172a;
}

html.theme-light .setting-row {
  border-bottom-color: rgba(0, 0, 0, 0.06);
}

html.theme-light .diag-chip {
  background: rgba(0, 0, 0, 0.04);
  border-color: rgba(0, 0, 0, 0.08);
}