/* ═══ TETA SCREEN STYLES ═══ */

/* ── Training Screen ── */
.training-screen {
  padding: var(--space-md);
  justify-content: space-between;
}

.training-header {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding-top: var(--space-sm);
}

.training-top-row {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.training-back {
  background: none;
  color: var(--text-tertiary);
  padding: 4px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: opacity 0.15s;
}

.training-back:active {
  opacity: 0.5;
}

.training-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: var(--text-tertiary);
}

.training-meta-item {
  font-family: var(--font-mono);
  font-size: 12px;
}

.training-center {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  position: relative;
}

.training-prompt {
  font-size: 14px;
  color: var(--text-tertiary);
  text-align: center;
}

.training-bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding-bottom: var(--space-sm);
  align-items: center;
}

.training-round-info {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  font-size: 12px;
  color: var(--text-tertiary);
}

.training-round-info span {
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

/* ── Splash Screen ── */
.splash-screen {
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
}

.splash-logo-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
}

.splash-text {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.splash-name {
  font-size: 30px;
  font-weight: 200;
  letter-spacing: 20px;
  text-indent: 20px;
  color: rgba(255, 255, 255, 0.9);
}

.splash-divider {
  width: 28px;
  height: 1px;
  background: rgba(255, 255, 255, 0.12);
}

.splash-tagline {
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 4.5px;
  text-indent: 4.5px;
  color: rgba(255, 255, 255, 0.3);
  text-transform: uppercase;
}

/* ── Home Screen ── */
.home-screen {
  padding: var(--space-lg) var(--space-md);
  padding-bottom: 72px;
  gap: 0;
}

.home-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
}

.home-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  min-height: 0;
}

.home-logo {
  font-size: 18px;
  font-weight: 300;
  letter-spacing: 6px;
  color: var(--text-primary);
  text-transform: uppercase;
}

.home-bsi {
  text-align: center;
  padding: var(--space-md) 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.home-bsi::before {
  content: '';
  position: absolute;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(120, 130, 255, 0.07) 0%, transparent 65%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -55%);
  pointer-events: none;
  opacity: 0.6;
  animation: homeGlowPulse 9s ease-in-out infinite;
}

.home-bsi-logo {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-sm);
}

.home-bsi-value {
  font-family: var(--font-mono);
  font-size: 64px;
  font-weight: 200;
  color: var(--text-primary);
  line-height: 1;
}

.home-bsi-label {
  font-size: 11px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-top: var(--space-sm);
}

.home-bsi-delta {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--correct);
  margin-top: var(--space-xs);
}

.home-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  width: 100%;
}

.home-bottom {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.home-brain-fact {
  text-align: center;
  font-size: 12px;
  color: var(--text-ghost);
  line-height: 1.5;
  padding: 0 var(--space-lg);
  max-width: 320px;
  margin: 0 auto;
}

/* ── Complete Screen ── */
.complete-screen {
  padding: var(--space-lg) var(--space-md);
  padding-bottom: 72px;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
}

.complete-title {
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--text-tertiary);
}

.complete-bsi {
  text-align: center;
}

.complete-bsi-value {
  font-family: var(--font-mono);
  font-size: 56px;
  font-weight: 200;
  color: var(--text-primary);
  line-height: 1;
}

.complete-bsi-delta {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--correct);
  margin-top: var(--space-xs);
}

.complete-brain-fact {
  font-size: 13px;
  color: var(--text-tertiary);
  text-align: center;
  padding: 0 var(--space-lg);
  line-height: 1.5;
  max-width: 320px;
}

.complete-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-sm);
  width: 100%;
}

.complete-actions {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: auto;
  padding-bottom: var(--space-lg);
}

/* ── Settings Screen ── */
.settings-screen {
  padding: var(--space-md);
  padding-bottom: 72px;
  gap: 0;
}

.settings-header {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) 0 var(--space-lg);
}

.settings-title {
  font-size: 18px;
  font-weight: 300;
  letter-spacing: 2px;
  color: var(--text-primary);
  text-transform: uppercase;
}

.settings-list {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: var(--space-md);
}

.settings-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.settings-label {
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-tertiary);
}

.settings-hint {
  font-size: 12px;
  color: var(--text-ghost);
  line-height: 1.4;
  margin-top: -2px;
}

.settings-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.settings-option {
  padding: 8px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 13px;
  transition: all 0.15s;
}

.settings-option.active {
  background: var(--theta-50);
  border-color: var(--theta-400);
  color: var(--theta-500);
}

.settings-option:active {
  opacity: 0.7;
}

/* Mode selector — collapsible dropdown */
.settings-mode-selector {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.15s;
  width: 100%;
}

.settings-mode-selector:active {
  opacity: 0.7;
}

.mode-selector-chevron {
  transition: transform 0.2s;
  color: var(--text-ghost);
  flex-shrink: 0;
}

.settings-mode-selector.open .mode-selector-chevron {
  transform: rotate(180deg);
}

.settings-mode-dropdown {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease-out, margin-top 0.25s;
  margin-top: 0;
}

.settings-mode-dropdown.open {
  max-height: 500px;
  margin-top: 8px;
}

/* Settings link (e.g. onboarding) */
.settings-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 14px;
  transition: all 0.15s;
  width: 100%;
}

.settings-link:active {
  opacity: 0.7;
}

.settings-link svg {
  color: var(--text-ghost);
  flex-shrink: 0;
}

/* Mode options — vertical list with descriptions */
.settings-modes {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.settings-mode-option {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 10px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 13px;
  text-align: left;
  transition: all 0.15s;
}

.settings-mode-option.active {
  background: var(--theta-50);
  border-color: var(--theta-400);
}

.settings-mode-option:active {
  opacity: 0.7;
}

.mode-option-name {
  font-weight: 500;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.settings-mode-option.active .mode-option-name {
  color: var(--theta-500);
}

.mode-option-desc {
  font-size: 11px;
  color: var(--text-ghost);
  line-height: 1.3;
}

/* Locked mode */
.settings-mode-option.locked {
  opacity: 0.5;
}

.settings-mode-option.locked .mode-option-name {
  color: var(--text-tertiary);
}

.lock-badge {
  display: inline-flex;
  padding: 1px 6px;
  background: var(--theta-100);
  border-radius: var(--radius-sm);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.5px;
  color: var(--theta-500);
  text-transform: uppercase;
}

/* PRO card */
.settings-pro-card {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(99, 102, 241, 0.02));
  border: 1px solid var(--theta-200);
  border-radius: var(--radius-lg);
  text-align: left;
  transition: all 0.15s;
}

.settings-pro-card:active {
  opacity: 0.8;
}

.settings-pro-icon {
  flex-shrink: 0;
  color: var(--theta-500);
}

.settings-pro-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.settings-pro-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--theta-500);
  letter-spacing: 0.5px;
}

.settings-pro-desc {
  font-size: 12px;
  color: var(--text-tertiary);
  line-height: 1.3;
}

.settings-pro-arrow {
  flex-shrink: 0;
  color: var(--text-ghost);
}

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

.settings-toggle {
  position: relative;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.settings-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.2s;
}

.toggle-slider::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  background: var(--text-tertiary);
  border-radius: 50%;
  transition: all 0.2s;
}

.settings-toggle input:checked + .toggle-slider {
  background: var(--theta-400);
  border-color: var(--theta-400);
}

.settings-toggle input:checked + .toggle-slider::before {
  transform: translateX(20px);
  background: white;
}

.settings-bottom {
  padding: var(--space-lg) 0;
}

.settings-reset {
  color: var(--error);
  border-color: rgba(255, 82, 82, 0.2);
}

/* Sliders row — side-by-side layout */
.settings-sliders-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.settings-slider-group {
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-sm) var(--space-xs);
}

/* ── Onboarding Screen ── */
.onboarding-screen {
  padding: var(--space-lg) var(--space-md);
  justify-content: space-between;
  align-items: center;
}

.onboarding-slides {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.onboarding-slide {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  text-align: center;
  padding: 0 var(--space-md);
  max-width: 340px;
}

.onboarding-icon {
  color: var(--theta-500);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100px;
}

.onboarding-title {
  font-size: 22px;
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.3;
}

.onboarding-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.onboarding-dots {
  display: flex;
  gap: 8px;
  padding: var(--space-md) 0;
}

.onboarding-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-light);
  transition: all 0.2s;
}

.onboarding-dot.active {
  background: var(--theta-500);
  width: 20px;
  border-radius: 4px;
}

.onboarding-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  width: 100%;
  padding-bottom: var(--space-lg);
}

.onboarding-next {
  max-width: 280px;
}

.onboarding-skip {
  background: none;
  color: var(--text-ghost);
  font-size: 13px;
  padding: 8px 16px;
}

.onboarding-skip:active {
  opacity: 0.5;
}