:root {
  --primary: #8b5cf6;
  --primary-light: #c4b5fd;
  --primary-deep: #6a3de8;
  --surface: rgba(255, 255, 255, 0.7); /* Glass-like surface */
  --surface-opaque: #ffffff;
  --surface-soft: #f5f3ff;
  --surface-muted: #ede9fe;
  --text: #1e1b4b;
  --text-soft: #475569;
  --border: rgba(139, 92, 246, 0.12);
  --glass-border: rgba(255, 255, 255, 0.6);
  --shadow: 0 20px 50px rgba(106, 61, 232, 0.14);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "IBM Plex Sans", sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #f1ebff 0%, #f8f5ff 46%, #ffffff 100%);
}

.page-shell {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
}

.background-orb {
  position: absolute;
  border-radius: 999px;
  filter: blur(70px);
  pointer-events: none;
}

.orb-1 {
  top: -10%;
  left: -5%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.15) 0%, transparent 70%);
  animation: float 20s ease-in-out infinite alternate;
}

.orb-2 {
  top: 40%;
  right: -10%;
  width: 40vw;
  height: 40vw;
  background: radial-gradient(circle, rgba(196, 181, 253, 0.25) 0%, transparent 70%);
  animation: float 25s ease-in-out infinite alternate-reverse;
}

.orb-3 {
  bottom: -10%;
  left: 10%;
  width: 35vw;
  height: 35vw;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
  animation: float 22s ease-in-out infinite alternate;
}

.orb-4 {
  top: 10%;
  right: 20%;
  width: 25vw;
  height: 25vw;
  background: radial-gradient(circle, rgba(196, 181, 253, 0.12) 0%, transparent 70%);
  animation: float 18s ease-in-out infinite alternate-reverse;
}

@keyframes float {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(50px, 100px) scale(1.1); }
}

.background-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(139, 92, 246, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 92, 246, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(circle at 50% 50%, black, transparent 80%);
}

.app-shell {
  position: relative;
  width: min(100% - 32px, 1080px);
  margin: 0 auto;
  padding: 32px 0 64px;
  z-index: 10;
}

.screen {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}

.screen-inner {
  padding: 24px;
}

.stack-screen {
  min-height: calc(100vh - 64px);
}

.welcome-screen {
  background: radial-gradient(circle at top right, rgba(139, 92, 246, 0.1), transparent 40%);
}

.narrow-shell {
  max-width: 560px;
  margin: 0 auto;
}

.brand-row,
.questionnaire-header,
.progress-meta,
.pattern-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand-mark,
.auth-status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-dot {
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  box-shadow: 0 0 15px rgba(139, 92, 246, 0.3);
}

.eyebrow {
  margin: 24px 0 12px;
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.headline,
.auth-title,
.question-title,
.pattern-label,
.mini-card h3,
.result-card h3 {
  margin: 0;
  font-family: "Sora", sans-serif;
}

.headline {
  max-width: 12ch;
  font-size: clamp(2.5rem, 10vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: -0.06em;
  font-weight: 800;
  background: linear-gradient(to bottom right, var(--text) 30%, var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.subhead,
.helper-text,
.result-copy,
.pattern-copy,
.auth-footnote,
.scale-label,
.mini-card p {
  color: var(--text-soft);
  line-height: 1.7;
}

.subhead {
  margin: 20px 0 0;
  max-width: 42rem;
  font-size: 1.1rem;
}

.hero-metrics,
.results-grid,
.results-columns,
.result-list,
.choice-grid,
.score-grid,
.selection-list,
.rank-pool,
.auth-tabs,
.auth-actions,
.question-actions {
  display: grid;
  gap: 12px;
}

.hero-metrics,
.results-grid,
.results-columns,
.result-list,
.auth-actions {
  grid-template-columns: 1fr;
}

.mini-card,
.result-card,
.question-card,
.loading-panel,
.pattern-card,
.selection-chip,
.rank-item,
.choice-card,
.scale-chip,
.notice-banner,
.auth-status {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.mini-card,
.result-card,
.question-card,
.loading-panel {
  padding: 18px;
}

.mini-card h3,
.result-card h3 {
  margin-bottom: 10px;
  font-size: 1rem;
}

.notice-banner,
.auth-status {
  padding: 8px 12px;
}

.tab-button,
.ghost-button,
.primary-button,
.secondary-button,
.choice-card,
.scale-chip,
.rank-item,
.selection-chip {
  appearance: none;
  border: 0;
  cursor: pointer;
  font: inherit;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background-color 160ms ease,
    color 160ms ease;
}

.tab-button,
.ghost-button,
.primary-button,
.secondary-button {
  padding: 14px 16px;
  border-radius: 999px;
  font-weight: 700;
}

.primary-button {
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  color: #ffffff;
  box-shadow: 0 8px 24px rgba(139, 92, 246, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.primary-button:hover {
  box-shadow: 0 12px 32px rgba(139, 92, 246, 0.4);
  filter: brightness(1.1);
}

.secondary-button {
  background: var(--surface-soft);
  color: var(--text);
  border: 1px solid rgba(139, 92, 246, 0.18);
}

.google-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.google-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: #ffffff;
  color: var(--primary-deep);
  font-family: "Sora", sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  box-shadow: inset 0 0 0 1px rgba(139, 92, 246, 0.16);
}

.ghost-button {
  background: transparent;
  color: var(--text-soft);
  border: 1px solid var(--border);
}

.tab-button {
  background: var(--surface-soft);
  color: var(--text-soft);
  border: 1px solid transparent;
}

.tab-button.is-active {
  background: #ede9fe;
  border-color: rgba(139, 92, 246, 0.24);
  color: var(--text);
}

.primary-button:hover,
.secondary-button:hover,
.ghost-button:hover,
.tab-button:hover,
.choice-card:hover,
.scale-chip:hover,
.rank-item:hover,
.selection-chip:hover {
  transform: translateY(-1px);
}

.field-group {
  display: grid;
  gap: 10px;
}

.field-label {
  color: var(--text-soft);
  font-size: 0.9rem;
}

.text-input,
.textarea-input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  background: var(--surface-opaque);
  color: var(--text);
  font: inherit;
  transition: all 0.2s ease;
}

.text-input:focus,
.textarea-input:focus {
  outline: none;
  border-color: var(--primary);
  background: #ffffff;
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.1);
}

.textarea-input {
  min-height: 140px;
  resize: vertical;
}

.auth-tabs {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 18px;
}

.error-banner {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(220, 38, 38, 0.14);
  background: rgba(254, 242, 242, 0.95);
  color: #991b1b;
}

.questionnaire-screen .screen-inner,
.results-screen .screen-inner,
.loading-screen .screen-inner {
  padding: 20px;
}

.progress-shell {
  margin: 24px 0 28px;
}

.progress-meta {
  margin-bottom: 12px;
  color: var(--text-dim);
  font-size: 0.95rem;
  font-weight: 500;
}

.progress-track {
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  overflow: hidden;
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.2);
}

.progress-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  box-shadow: 0 0 15px rgba(139, 92, 246, 0.5);
  transition: width 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.fade-in {
  animation: fadeIn 0.8s ease-out forwards;
}

.slide-up {
  animation: slideUp 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.choice-grid {
  grid-template-columns: 1fr;
}

.choice-card,
.scale-chip,
.rank-item,
.selection-chip {
  width: 100%;
  padding: 18px 20px;
  text-align: left;
  color: var(--text);
  background: var(--surface-opaque);
  border: 1px solid var(--border);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.choice-card.is-selected,
.scale-chip.is-selected,
.rank-item.is-selected,
.selection-chip {
  background: #ede9fe;
  border-color: rgba(139, 92, 246, 0.36);
  color: var(--primary-deep);
  transform: scale(1.02);
  box-shadow: 0 10px 25px rgba(139, 92, 246, 0.1);
}

.score-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.scale-chip {
  text-align: center;
  font-weight: 700;
}

.scale-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 10px;
}

.selection-list,
.rank-pool {
  grid-template-columns: 1fr;
  margin-top: 16px;
}

.sortable-list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.sortable-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  touch-action: none;
}

.sortable-item.is-top-ranked {
  background: rgba(196, 181, 253, 0.24);
  border-color: rgba(139, 92, 246, 0.36);
}

.sortable-item-main,
.sortable-item-side {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sortable-item-main {
  min-width: 0;
  color: var(--text);
  font-weight: 600;
}

.top-rank-badge {
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(139, 92, 246, 0.14);
  color: var(--primary-deep);
  font-size: 0.78rem;
  font-weight: 700;
  white-space: nowrap;
}

.drag-handle {
  color: var(--text-soft);
  font-size: 1.1rem;
  letter-spacing: -0.08em;
  cursor: grab;
  user-select: none;
}

.sortable-ghost {
  opacity: 0.35;
}

.sortable-chosen,
.sortable-drag {
  box-shadow: 0 14px 28px rgba(139, 92, 246, 0.18);
}

.selection-chip,
.rank-item {
  display: flex;
  align-items: center;
  gap: 12px;
}

.selection-order,
.pill-score {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 8px;
  border-radius: 999px;
  background: #ede9fe;
  color: var(--primary-deep);
  font-weight: 700;
}

.helper-text {
  margin-top: 10px;
  font-size: 0.92rem;
}

.question-actions,
.results-actions {
  grid-template-columns: 1fr;
  margin-top: 22px;
}

.loading-screen {
  min-height: calc(100vh - 36px);
  display: grid;
  place-items: center;
}

.loading-panel {
  width: 100%;
  text-align: center;
}

.loading-ring {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  border-radius: 999px;
  border: 4px solid rgba(255, 255, 255, 0.05);
  border-top-color: var(--primary);
  box-shadow: 0 0 30px rgba(139, 92, 246, 0.2);
  animation: spin 1s linear infinite;
}

.results-hero {
  display: grid;
  gap: 12px;
  margin-bottom: 22px;
}

.result-list-item {
  display: flex;
  gap: 12px;
  padding: 14px 0;
  border-top: 1px solid var(--border);
}

.result-list-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.list-bullet {
  width: 10px;
  height: 10px;
  margin-top: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  flex: none;
}

.pattern-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.pattern-item {
  position: relative;
  padding: 18px;
  background: rgba(139, 92, 246, 0.03);
  border: 1px solid rgba(139, 92, 246, 0.08);
  border-radius: var(--radius-md);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
}

.pattern-item::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.05) 0%, transparent 100%);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.pattern-item:hover {
  background: rgba(139, 92, 246, 0.06);
  transform: translateX(6px);
  border-color: rgba(139, 92, 246, 0.2);
  box-shadow: 0 8px 24px rgba(139, 92, 246, 0.06);
}

.pattern-item:hover::before {
  opacity: 1;
}

.pattern-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.pattern-label {
  margin: 0;
  font-family: "Sora", sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.pattern-copy {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-soft);
  position: relative;
  z-index: 1;
}

.likelihood-bar-track {
  height: 6px;
  background: rgba(139, 92, 246, 0.08);
  border-radius: 99px;
  margin-top: 16px;
  overflow: hidden;
  position: relative;
  z-index: 1;
}

.likelihood-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  border-radius: inherit;
  box-shadow: 0 0 10px rgba(139, 92, 246, 0.3);
  transition: width 1s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.auth-footnote {
  margin: 12px 0 0;
  font-size: 0.9rem;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@media (min-width: 720px) {
  .app-shell {
    width: min(100% - 32px, 1120px);
    padding: 20px 0 36px;
  }

  .screen-inner,
  .questionnaire-screen .screen-inner,
  .results-screen .screen-inner,
  .loading-screen .screen-inner {
    padding: 28px;
  }

  .hero-metrics,
  .results-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .choice-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .selection-list,
  .rank-pool {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .question-actions,
  .results-actions {
    grid-template-columns: auto auto;
    justify-content: space-between;
    align-items: center;
  }

  .results-columns {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}