/* ============================================================
   Art direction: Outil d'analyse vectorielle / ML tool
   Palette: neumorphique, violet primary, neutrals gris/cool
   Typography: Inter (body) + JetBrains Mono (code/data)
   Density: dense (dashboard/app tool)
   Themes: light (neumorphique clair) + dark (neumorphique sombre)
   ============================================================ */

/* === FONTS === */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300..700&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* === DESIGN TOKENS === */
:root, [data-theme="light"] {
  /* Neumorphic surfaces (light) */
  --neu-bg:           #e8ecf0;
  --neu-bg-secondary: #dde1e7;
  --neu-surface:      #edf0f4;
  --neu-shadow-dark:  #c5cad3;
  --neu-shadow-light: #ffffff;

  /* Semantic surfaces */
  --color-bg:           var(--neu-bg);
  --color-surface:      var(--neu-surface);
  --color-surface-2:    #f2f4f7;
  --color-surface-offset: var(--neu-bg-secondary);
  --color-border:       rgba(0, 0, 0, 0.08);
  --color-divider:      rgba(0, 0, 0, 0.06);

  /* Text */
  --color-text:         #1a1d23;
  --color-text-muted:   #6b7280;
  --color-text-faint:   #9ca3af;
  --color-text-inverse: #f9fafb;

  /* Primary — Violet */
  --color-primary:          #7c3aed;
  --color-primary-hover:    #6d28d9;
  --color-primary-active:   #5b21b6;
  --color-primary-highlight: rgba(124, 58, 237, 0.12);

  /* Accent data colors */
  --color-success: #059669;
  --color-warning: #d97706;
  --color-error:   #dc2626;
  --color-blue:    #2563eb;

  /* Typography */
  --font-body:    'Inter', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', monospace;

  /* Type scale */
  --text-xs:   clamp(0.65rem,  0.6rem  + 0.15vw, 0.775rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);

  /* Spacing */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Radius */
  --radius-sm:   0.375rem;
  --radius-md:   0.625rem;
  --radius-lg:   1rem;
  --radius-xl:   1.5rem;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast:   150ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 300ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);

  /* Neumorphic shadows */
  --neu-raised:
    6px 6px 12px var(--neu-shadow-dark),
    -6px -6px 12px var(--neu-shadow-light);
  --neu-raised-sm:
    3px 3px 6px var(--neu-shadow-dark),
    -3px -3px 6px var(--neu-shadow-light);
  --neu-inset:
    inset 3px 3px 7px var(--neu-shadow-dark),
    inset -3px -3px 7px var(--neu-shadow-light);
  --neu-inset-sm:
    inset 2px 2px 4px var(--neu-shadow-dark),
    inset -2px -2px 4px var(--neu-shadow-light);

  /* Content widths */
  --content-wide: 1400px;
}

/* === DARK MODE === */
[data-theme="dark"] {
  --neu-bg:           #1e2130;
  --neu-bg-secondary: #161828;
  --neu-surface:      #252840;
  --neu-shadow-dark:  #0d0f1a;
  --neu-shadow-light: #2d3250;

  --color-bg:           var(--neu-bg);
  --color-surface:      var(--neu-surface);
  --color-surface-2:    #2a2e47;
  --color-surface-offset: var(--neu-bg-secondary);
  --color-border:       rgba(255, 255, 255, 0.08);
  --color-divider:      rgba(255, 255, 255, 0.05);

  --color-text:         #e2e5ef;
  --color-text-muted:   #8b92b0;
  --color-text-faint:   #565d7a;
  --color-text-inverse: #1a1d23;

  --color-primary:          #a78bfa;
  --color-primary-hover:    #8b5cf6;
  --color-primary-active:   #7c3aed;
  --color-primary-highlight: rgba(167, 139, 250, 0.15);

  --color-success: #34d399;
  --color-warning: #fbbf24;
  --color-error:   #f87171;
  --color-blue:    #60a5fa;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);

  --neu-raised:
    6px 6px 14px var(--neu-shadow-dark),
    -6px -6px 14px var(--neu-shadow-light);
  --neu-raised-sm:
    3px 3px 7px var(--neu-shadow-dark),
    -3px -3px 7px var(--neu-shadow-light);
  --neu-inset:
    inset 3px 3px 8px var(--neu-shadow-dark),
    inset -3px -3px 8px var(--neu-shadow-light);
  --neu-inset-sm:
    inset 2px 2px 5px var(--neu-shadow-dark),
    inset -2px -2px 5px var(--neu-shadow-light);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --neu-bg:           #1e2130;
    --neu-bg-secondary: #161828;
    --neu-surface:      #252840;
    --neu-shadow-dark:  #0d0f1a;
    --neu-shadow-light: #2d3250;
    --color-bg:           var(--neu-bg);
    --color-surface:      var(--neu-surface);
    --color-surface-2:    #2a2e47;
    --color-surface-offset: var(--neu-bg-secondary);
    --color-border:       rgba(255, 255, 255, 0.08);
    --color-divider:      rgba(255, 255, 255, 0.05);
    --color-text:         #e2e5ef;
    --color-text-muted:   #8b92b0;
    --color-text-faint:   #565d7a;
    --color-text-inverse: #1a1d23;
    --color-primary:          #a78bfa;
    --color-primary-hover:    #8b5cf6;
    --color-primary-active:   #7c3aed;
    --color-primary-highlight: rgba(167, 139, 250, 0.15);
    --color-success: #34d399;
    --color-warning: #fbbf24;
    --color-error:   #f87171;
    --color-blue:    #60a5fa;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);
    --neu-raised:
      6px 6px 14px var(--neu-shadow-dark),
      -6px -6px 14px var(--neu-shadow-light);
    --neu-raised-sm:
      3px 3px 7px var(--neu-shadow-dark),
      -3px -3px 7px var(--neu-shadow-light);
    --neu-inset:
      inset 3px 3px 8px var(--neu-shadow-dark),
      inset -3px -3px 8px var(--neu-shadow-light);
    --neu-inset-sm:
      inset 2px 2px 5px var(--neu-shadow-dark),
      inset -2px -2px 5px var(--neu-shadow-light);
  }
}

/* === BASE RESET === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color var(--transition-normal), color var(--transition-normal);
  display: flex;
  justify-content: center;
  overflow-x: hidden;
}

img, canvas, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }

::selection {
  background: var(--color-primary-highlight);
  color: var(--color-text);
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* === LAYOUT === */
#container {
  max-width: var(--content-wide);
  width: 95%;
  padding: var(--space-8) var(--space-6);
}

/* === HEADER === */
header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-2);
  gap: var(--space-4);
  flex-wrap: wrap;
}

.header-title h1 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 12px;
}

.header-title h1 span {
  color: var(--color-primary);
}

.header-title p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-top: var(--space-1);
}

/* === THEME TOGGLE === */
.theme-toggle {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: linear-gradient(145deg, var(--neu-bg), var(--neu-bg-secondary));
  box-shadow: var(--neu-raised-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  flex-shrink: 0;
  transition: box-shadow var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.theme-toggle:hover {
  color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--neu-raised);
}

.theme-toggle:active {
  box-shadow: var(--neu-inset-sm);
  transform: translateY(0);
}

.explain {
	font-size: var(--text-xs);
	margin-top:0px;
	margin-left:32px;
	margin-right:24px;
	margin-bottom:28px;
	color: var(--color-text-muted);
}


/* === NEUMORPHIC SURFACES === */
.neu-card {
  background: linear-gradient(145deg, var(--neu-bg), var(--neu-bg-secondary));
  box-shadow: var(--neu-raised);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: box-shadow var(--transition-normal);
}

.neu-surface {
  background: linear-gradient(145deg, var(--neu-bg-secondary), var(--neu-bg));
  box-shadow: var(--neu-inset);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}

.neu-inset-field {
  background: linear-gradient(145deg, var(--neu-bg-secondary), var(--neu-bg));
  box-shadow: var(--neu-inset);
  border-radius: var(--radius-md);
  border: none;
}

/* === MAIN LAYOUT === */
.main-layout {
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
}

.side-panel {
  flex: 0 0 420px;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.main-panel {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

/* === INPUT SECTION === */
.input-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.section-label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-2);
}

.input-wrapper {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin : var(--space-4);
}

.input-wrapper label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
}

input[type="text"],
textarea,
select {
  width: 100%;
  background: linear-gradient(145deg, var(--neu-bg-secondary), var(--neu-bg));
  box-shadow: var(--neu-inset);
  border: none;
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  color: var(--color-text);
  font-size: var(--text-xs);
  transition: box-shadow var(--transition-fast);
}

/* Flèche personnalisée pour le select (remplace appearance: none du HTML) */
select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: var(--space-8);
  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='%238b92b0' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  cursor: pointer;
}

/* Options du menu déroulant */
select option {
  background-color: var(--neu-bg);
  color: var(--color-text);
}

input[type="text"]:focus,
textarea:focus,
select:focus {
  outline: none;
  box-shadow: var(--neu-inset), 0 0 0 2px var(--color-primary);
}

input[type="text"]::placeholder,
textarea::placeholder {
  color: var(--color-text-faint);
}

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  transition: box-shadow var(--transition-fast), transform var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(145deg, var(--color-primary), var(--color-primary-active));
  color: #fff;
  box-shadow: var(--neu-raised-sm),
              0 4px 16px rgba(124, 58, 237, 0.35);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(145deg, var(--color-primary-hover), var(--color-primary));
  transform: translateY(-2px);
  box-shadow: var(--neu-raised),
              0 8px 24px rgba(124, 58, 237, 0.4);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: var(--neu-inset-sm);
}

.btn-secondary {
  background: linear-gradient(145deg, var(--neu-bg), var(--neu-bg-secondary));
  color: var(--color-text-muted);
  box-shadow: var(--neu-raised-sm);
}

.btn-secondary:hover:not(:disabled) {
  color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--neu-raised);
}

.btn-secondary:active:not(:disabled) {
  box-shadow: var(--neu-inset-sm);
  transform: translateY(0);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* === ACCORDION (details/summary) === */
details {
  background: linear-gradient(145deg, var(--neu-bg), var(--neu-bg-secondary));
  box-shadow: var(--neu-raised-sm);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--transition-normal);
}

details[open] {
  box-shadow: var(--neu-raised);
  padding-bottom: var(--space-4);
}

summary {
  padding: var(--space-4) var(--space-5);
  cursor: pointer;
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-primary);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  border-radius: var(--radius-lg);
  transition: background var(--transition-fast);
}

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

summary::after {
  content: "›";
  font-size: 1.2rem;
  transition: transform var(--transition-normal);
  opacity: 0.6;
}

details[open] summary::after {
  transform: rotate(90deg);
}

summary:hover {
  background: var(--color-primary-highlight);
}

.accordion-content {
  padding: 0 var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

/* === STATUS BADGE === */
.status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.02em;
  background: linear-gradient(145deg, var(--neu-bg), var(--neu-bg-secondary));
  box-shadow: var(--neu-raised-sm);
  color: var(--color-text-muted);
  margin: var(--space-4) auto 0;
}

.status.loading {
  color: var(--color-warning);
}

.status.ready {
  color: var(--color-success);
}

.status::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: currentColor;
  flex-shrink: 0;
}

/* === SIMILARITY SCORE === */
#similarity-container {
  text-align: center;
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--neu-bg-secondary), var(--neu-bg));
  box-shadow: var(--neu-inset);
  transition: all var(--transition-normal);
}

.score-label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-2);
}

.score-display {
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 800;
  font-family: var(--font-mono);
  letter-spacing: -0.05em;
  line-height: 1;
  color: var(--color-primary);
  transition: color var(--transition-normal);
}

.score-caption {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-2);
}

/* === SECTION HEADINGS === */
.card-title {
  font-size: var(--text-base);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--space-1);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.card-title svg {
  color: var(--color-primary);
  opacity: 0.8;
  flex-shrink: 0;
}

.subtitle {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  margin-bottom: var(--space-4);
}

/* === RESULTS GRID === */
.results-grid {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.result-card .result-score {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-primary);
  font-family: var(--font-mono);
}

/* === COMPARISON GRID === */
.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

/* === VISUAL SUB-SECTION === */
.visual-sub-section {
  margin-top: var(--space-5);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-divider);
}

.visual-sub-section h4 {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-1);
}

.mini-subtitle {
  color: var(--color-text-faint);
  font-size: var(--text-xs);
  margin-bottom: var(--space-3);
}

/* === TOKEN CHIPS === */
.tokens-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  max-height: 180px;
  overflow-y: auto;
  padding-right: var(--space-2);
}

.token-chip {
  background: linear-gradient(145deg, var(--neu-bg), var(--neu-bg-secondary));
  box-shadow: var(--neu-raised-sm);
  color: var(--color-primary);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-family: var(--font-mono);
  font-weight: 500;
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

.token-chip:hover {
  box-shadow: var(--neu-raised);
  transform: translateY(-1px);
}

.token-chip.padded {
  opacity: 0.28;
  color: var(--color-text-faint);
  box-shadow: none;
  background: transparent;
}

/* === EMBEDDING VIZ === */
.embedding-viz {
  display: grid;
  grid-template-columns: repeat(32, 1fr);
  gap: 1px;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.viz-cell {
  aspect-ratio: 1;
  border-radius: 1px;
  transition: opacity var(--transition-fast);
}

.embedding-text {
  margin-top: var(--space-4);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-text-faint);
  line-height: 1.6;
  word-break: break-all;
  background: linear-gradient(145deg, var(--neu-bg-secondary), var(--neu-bg));
  box-shadow: var(--neu-inset-sm);
  border-radius: var(--radius-md);
  padding: var(--space-3);
}

/* === RESULTS TEXTAREA === */
#results-text {
  width: 100%;
  margin-top: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, var(--neu-bg-secondary), var(--neu-bg));
  box-shadow: var(--neu-inset);
  border: none;
  color: var(--color-text-muted);
  resize: vertical;
  min-height: 80px;
  line-height: 1.6;
}

#results-text:focus {
  outline: none;
  box-shadow: var(--neu-inset), 0 0 0 2px var(--color-primary);
}

/* === SCROLLBARS === */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-faint);
}

/* === UTILITY === */
.hidden { display: none !important; }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: var(--color-primary-highlight);
  color: var(--color-primary);
}

/* === ANIMATIONS === */
@keyframes pulse-glow {
  0%, 100% { box-shadow: var(--neu-inset); }
  50% { box-shadow: var(--neu-inset), 0 0 20px rgba(124, 58, 237, 0.2); }
}

@keyframes skeleton {
  from { background-position: 200% 0; }
  to { background-position: -200% 0; }
}

.skeleton {
  background: linear-gradient(90deg,
    var(--neu-bg-secondary) 25%,
    var(--neu-bg) 50%,
    var(--neu-bg-secondary) 75%);
  background-size: 200% 100%;
  animation: skeleton 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  .main-layout {
    flex-direction: column;
  }
  .side-panel {
    flex: none;
    width: 100%;
  }
  .comparison-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  #container {
    padding: var(--space-4) var(--space-3);
  }
  .neu-card {
    padding: var(--space-4);
    border-radius: var(--radius-lg);
  }
  header {
    flex-direction: column;
    gap: var(--space-3);
  }
  .header-title h1 {
    font-size: var(--text-lg);
  }
}