copilot/upgrade-ai-autocorrect-assistant
/* =====================================================
   Smart AutoCorrect Keyboard – style.css
   Dark-theme, responsive, PWA-ready
   ===================================================== */

/* ── Reset & base ── */

/* ============================================================
   Smart AutoCorrect Keyboard – Web App
   style.css
   ============================================================ */

/* ── Reset & base ──────────────────────────────────────────── */
 main
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
 copilot/upgrade-ai-autocorrect-assistant
  --bg-deep:       #0f0f1a;
  --bg-card:       #1a1a2e;
  --bg-input:      #16213e;
  --bg-surface:    #0d1b2a;
  --accent:        #6c63ff;
  --accent-light:  #8b85ff;
  --accent-glow:   rgba(108, 99, 255, 0.35);
  --success:       #4ade80;
  --warning:       #fbbf24;
  --error:         #f87171;
  --text-primary:  #e2e8f0;
  --text-secondary:#94a3b8;
  --text-muted:    #475569;
  --border:        rgba(108, 99, 255, 0.2);
  --border-hover:  rgba(108, 99, 255, 0.5);
  --radius-sm:     6px;
  --radius-md:     12px;
  --radius-lg:     20px;
  --radius-xl:     28px;
  --transition:    0.2s ease;
  --shadow-card:   0 20px 60px rgba(0, 0, 0, 0.5);
  --shadow-glow:   0 0 30px rgba(108, 99, 255, 0.2);

  /* Colour palette */
  --color-bg:          #f0f4f8;
  --color-card:        #ffffff;
  --color-primary:     #4f46e5;      /* indigo */
  --color-primary-h:   #4338ca;      /* darker indigo on hover */
  --color-accent:      #06b6d4;      /* cyan */
  --color-success:     #10b981;      /* green */
  --color-text:        #1e293b;
  --color-muted:       #64748b;
  --color-border:      #e2e8f0;
  --color-input-focus: #6366f1;

  /* Spacing */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  1.5rem;
  --space-xl:  2rem;
  --space-2xl: 3rem;

  /* Typography */
  --font-sans: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'Cascadia Code', 'Fira Code', 'Consolas', monospace;

  /* Misc */
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1.25rem;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-input: 0 1px 4px rgba(0, 0, 0, 0.06);
  --transition: 0.2s ease;
 main
}

html {
  font-size: 16px;
 copilot/upgrade-ai-autocorrect-assistant
  scroll-behavior: smooth;
}

body {
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;

}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
 main
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
 copilot/upgrade-ai-autocorrect-assistant
  padding: 20px 16px 60px;
  position: relative;
  overflow-x: hidden;
}

/* ── Animated background ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 20% 20%, rgba(108, 99, 255, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 80% 80%, rgba(79, 70, 229, 0.06) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

/* ── Header ── */
header {
  width: 100%;
  max-width: 760px;
  text-align: center;
  padding: 36px 0 28px;
  position: relative;
  z-index: 1;
}

.logo-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 10px;
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--accent), #4f46e5);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  box-shadow: 0 4px 20px var(--accent-glow);
  flex-shrink: 0;
}

header h1 {
  font-size: clamp(1.5rem, 4vw, 2.1rem);
  font-weight: 700;
  background: linear-gradient(135deg, #fff 0%, var(--accent-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.tagline {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-top: 4px;
  letter-spacing: 0.02em;
}

.badge-row {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.badge {
  background: rgba(108, 99, 255, 0.15);
  border: 1px solid var(--border);
  color: var(--accent-light);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 20px;
}

/* ── Main card ── */
.card {
  width: 100%;
  max-width: 760px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  overflow: hidden;
  position: relative;
  z-index: 1;
}

/* ── Card header bar ── */
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
}

.traffic-lights {
  display: flex;
  gap: 6px;
}

.traffic-lights span {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.traffic-lights span:nth-child(1) { background: #f87171; }
.traffic-lights span:nth-child(2) { background: #fbbf24; }
.traffic-lights span:nth-child(3) { background: #4ade80; }

.card-title {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  font-weight: 500;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.85); }
}

/* ── Input section ── */
.input-section {
  padding: 20px 20px 14px;
}

.input-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.input-label::before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 12px;
  background: var(--accent);
  border-radius: 2px;
}

.textarea-wrapper {
  position: relative;
}

#userInput {
  width: 100%;
  min-height: 140px;
  max-height: 320px;
  background: var(--bg-input);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 1rem;
  line-height: 1.7;
  padding: 14px 16px;
  resize: vertical;
  outline: none;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
  caret-color: var(--accent);
}

#userInput::placeholder {
  color: var(--text-muted);
}

#userInput:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.char-count {
  position: absolute;
  bottom: 10px;
  right: 14px;
  font-size: 0.7rem;
  color: var(--text-muted);
  pointer-events: none;
}

/* ── Highlighted preview ── */
.preview-section {
  padding: 0 20px 14px;
}

.preview-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.preview-label::before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 12px;
  background: var(--warning);
  border-radius: 2px;
}

#highlightedText {
  min-height: 56px;
  background: var(--bg-surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
  word-break: break-word;
  font-family: inherit;
}

#highlightedText:empty::before {
  content: 'Highlighted preview will appear here…';
  color: var(--text-muted);
}

.misspelled {
  background: rgba(248, 113, 113, 0.2);
  border-bottom: 2px wavy var(--error);
  color: var(--error);
  border-radius: 3px;
  padding: 0 2px;
  cursor: pointer;
  transition: background var(--transition);
  position: relative;
}

.misspelled:hover {
  background: rgba(248, 113, 113, 0.35);
}

/* ── Suggestions panel ── */
.suggestions-section {
  padding: 0 20px 20px;
}

.suggestions-header {
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.suggestions-header::before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 12px;
  background: var(--success);
  border-radius: 2px;
}

#suggestionsPanel {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 42px;
  align-items: center;
}

.suggestion-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(108, 99, 255, 0.12);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 0.88rem;
  color: var(--accent-light);
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
  animation: fadeSlideIn 0.2s ease both;
}

.suggestion-chip:hover {
  background: rgba(108, 99, 255, 0.28);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

.suggestion-chip:active {
  transform: translateY(0);
}

.suggestion-chip .chip-rank {
  background: var(--accent);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.suggestion-chip .chip-dist {
  font-size: 0.68rem;
  color: var(--text-muted);
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.no-suggestions {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
  padding: 8px 0;
}

/* ── Stats bar ── */
.stats-bar {
  display: flex;
  gap: 0;
  border-top: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
}

.stat-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 14px 8px;
  border-right: 1px solid var(--border);
  transition: background var(--transition);
}

.stat-item:last-child {
  border-right: none;
}

.stat-item:hover {
  background: rgba(108, 99, 255, 0.05);
}

.stat-value {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent-light);
  line-height: 1;
}

.stat-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 4px;
  text-align: center;
}

/* ── Action buttons ── */
.actions-row {
  display: flex;
  gap: 10px;
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  font-family: inherit;
  letter-spacing: 0.02em;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px var(--accent-glow);
}

.btn-primary:hover {
  background: var(--accent-light);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.09);
  color: var(--text-primary);
}

/* ── Toast notifications ── */
#toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: rgba(26, 26, 46, 0.95);
  border: 1px solid var(--border-hover);
  color: var(--text-primary);
  padding: 10px 22px;
  border-radius: 30px;
  font-size: 0.85rem;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 9999;
  pointer-events: none;
  white-space: nowrap;
}

#toast.show {
  transform: translateX(-50%) translateY(0);
}

/* ── Info / how-it-works ── */
.info-section {
  width: 100%;
  max-width: 760px;
  margin-top: 32px;
  position: relative;
  z-index: 1;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
}

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  transition: border-color var(--transition), transform var(--transition);
}

.info-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.info-icon {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.info-card h3 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.info-card p {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── Footer ── */
footer {
  width: 100%;
  max-width: 760px;
  text-align: center;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 0.78rem;
  color: var(--text-muted);
  position: relative;
  z-index: 1;
}

footer a {
  color: var(--accent-light);

  justify-content: flex-start;
  padding: var(--space-xl) var(--space-md);
}

/* ── Page header ───────────────────────────────────────────── */
header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.header-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: var(--space-sm);
}

h1 {
  font-size: 1.85rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.header-subtitle {
  margin-top: var(--space-xs);
  color: var(--color-muted);
  font-size: 0.95rem;
}

/* ── Card ──────────────────────────────────────────────────── */
.card {
  background: var(--color-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-xl);
  width: 100%;
  max-width: 520px;
}

/* ── Section headings inside the card ─────────────────────── */
.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-muted);
  margin-bottom: var(--space-sm);
}

/* ── Input section ─────────────────────────────────────────── */
.input-section {
  margin-bottom: var(--space-lg);
}

#wordInput {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1.1rem;
  font-family: var(--font-sans);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #f8fafc;
  color: var(--color-text);
  outline: none;
  box-shadow: var(--shadow-input);
  transition: border-color var(--transition), box-shadow var(--transition);
}

#wordInput:focus {
  border-color: var(--color-input-focus);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.18);
  background: #fff;
}

#wordInput:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ── Divider ───────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-lg) 0;
}

/* ── Input-word display ────────────────────────────────────── */
.input-display-section {
  margin-bottom: var(--space-lg);
}

.input-word-display {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text);
  background: #f1f5f9;
  border-radius: var(--radius-sm);
  padding: var(--space-xs) var(--space-sm);
  display: inline-block;
  min-width: 3rem;
}

/* ── Suggestion box ────────────────────────────────────────── */
.suggestion-section {
  /* takes remaining space */
}

#suggestionBox {
  min-height: 3.5rem;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* Loading / empty state messages */
.loading-message,
.no-suggestion {
  color: var(--color-muted);
  font-size: 0.95rem;
  font-style: italic;
}

.loading-message.error {
  color: #ef4444;
  font-style: normal;
  font-weight: 500;
}

/* ── Result rows ───────────────────────────────────────────── */
.result-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.result-label {
  font-size: 0.95rem;
  color: var(--color-muted);
}

/* Word badge shared styles */
.result-word {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 999px; /* pill shape */
}

/* Green badge – word already correct */
.tag-correct {
  background: #d1fae5;
  color: #065f46;
}

/* Indigo badge – autocorrected word */
.tag-suggestion {
  background: #e0e7ff;
  color: #3730a3;
}

/* Small detail line (edit distance) */
.edit-detail {
  font-size: 0.8rem;
  color: var(--color-muted);
  padding-left: var(--space-xs);
}

/* ── Footer ────────────────────────────────────────────────── */
footer {
  margin-top: var(--space-2xl);
  text-align: center;
  color: var(--color-muted);
  font-size: 0.82rem;
}

footer a {
  color: var(--color-primary);
 main
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

 copilot/upgrade-ai-autocorrect-assistant
/* ── Loading skeleton ── */
.skeleton {
  background: linear-gradient(90deg, var(--bg-card) 25%, rgba(255,255,255,0.04) 50%, var(--bg-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── Responsive ── */
@media (max-width: 520px) {
  body { padding: 12px 10px 50px; }

  header { padding: 24px 0 20px; }

  .logo-icon { width: 40px; height: 40px; font-size: 20px; }

  .stats-bar { flex-wrap: wrap; }
  .stat-item { flex: 0 0 50%; border-bottom: 1px solid var(--border); }
  .stat-item:nth-child(2n) { border-right: none; }
  .stat-item:nth-last-child(-n+2) { border-bottom: none; }

  .actions-row { flex-direction: column; }
  .btn { justify-content: center; }

  .card-header .card-title { display: none; }

/* ── Responsive tweaks ─────────────────────────────────────── */
@media (max-width: 600px) {
  h1 {
    font-size: 1.5rem;
  }

  .card {
    padding: var(--space-lg);
  }

  #wordInput {
    font-size: 1rem;
  }
 main
}