/* =============================================================================
   Checker Engine — Design System (minimal moderno, tipo Linear/Vercel)

   Este arquivo é a fonte da verdade das cores/espaços/tipografia.
   Estilos inline no HTML devem ser gradualmente migrados pras classes daqui.
   ============================================================================= */

:root {
  /* ── Paleta ─────────────────────────────────────────────────────────────── */
  --bg-base:      #08090b;
  --bg-surface:   #101114;
  --bg-elevated:  #16181d;
  --bg-input:     #0b0c0f;
  --bg-hover:     rgba(255, 255, 255, .03);

  --border-subtle:  rgba(255, 255, 255, .06);
  --border-default: rgba(255, 255, 255, .10);
  --border-strong:  rgba(255, 255, 255, .16);
  --border-accent:  rgba(249, 115, 22, .4);

  --text-primary:   #fafafa;
  --text-secondary: #a1a1aa;
  --text-muted:     #71717a;
  --text-faint:     #52525b;

  --accent:       #f97316;
  --accent-hover: #fb923c;
  --accent-soft:  rgba(249, 115, 22, .12);
  --accent-line:  rgba(249, 115, 22, .3);

  --success:      #22c55e;
  --success-soft: rgba(34, 197, 94, .10);
  --success-line: rgba(34, 197, 94, .32);

  --danger:       #ef4444;
  --danger-soft:  rgba(239, 68, 68, .10);
  --danger-line:  rgba(239, 68, 68, .32);

  --warning:      #f59e0b;
  --warning-soft: rgba(245, 158, 11, .10);
  --warning-line: rgba(245, 158, 11, .28);

  --info:         #38bdf8;
  --info-soft:    rgba(56, 189, 248, .10);
  --info-line:    rgba(56, 189, 248, .28);

  /* ── Tipografia ─────────────────────────────────────────────────────────── */
  --font-sans:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono:    'JetBrains Mono', 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;

  --text-xs:   11px;
  --text-sm:   12px;
  --text-md:   14px;
  --text-lg:   16px;
  --text-xl:   19px;
  --text-2xl:  24px;
  --text-3xl:  32px;
  --text-4xl:  44px;

  /* ── Espaçamento (base 4) ───────────────────────────────────────────────── */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* ── Radius ─────────────────────────────────────────────────────────────── */
  --radius-sm:  6px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-xl:  16px;
  --radius-full: 9999px;

  /* ── Sombras (elevação sutil, no estilo Linear) ─────────────────────────── */
  --shadow-sm:  0 1px 2px rgba(0, 0, 0, .4);
  --shadow-md:  0 4px 12px -4px rgba(0, 0, 0, .5);
  --shadow-lg:  0 12px 32px -12px rgba(0, 0, 0, .6);

  /* ── Transições ─────────────────────────────────────────────────────────── */
  --ease:     cubic-bezier(.4, 0, .2, 1);
  --dur-fast: 120ms;
  --dur:      180ms;
  --dur-slow: 280ms;
}

/* =============================================================================
   RESET LEVE
   ============================================================================= */
*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: var(--text-md);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent); text-decoration: none; transition: color var(--dur-fast) var(--ease); }
a:hover { color: var(--accent-hover); }

::selection { background: var(--accent-soft); color: var(--accent-hover); }

button {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  border: none;
  background: none;
  cursor: pointer;
  padding: 0;
}

input, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
  padding: 0;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
input[type="number"] { -moz-appearance: textfield; }

textarea::placeholder,
input::placeholder { color: var(--text-faint); }

/* Overrides do HTML atual — enquanto os inlines não são migrados,
   pelo menos as fontes ficam consistentes com o design system. */
body,
[style*="'Inter'"] { font-family: var(--font-sans) !important; }
[style*="'Cinzel'"],
[style*="'Cinzel Decorative'"] {
  font-family: var(--font-sans) !important;
  font-weight: 700 !important;
  letter-spacing: -.02em !important;
  text-transform: none !important;
}
[style*="'JetBrains Mono'"] { font-family: var(--font-mono) !important; }

/* =============================================================================
   CARD
   ============================================================================= */
.ds-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: border-color var(--dur) var(--ease);
}
.ds-card:hover { border-color: var(--border-default); }
.ds-card--elevated { background: var(--bg-elevated); box-shadow: var(--shadow-md); }
.ds-card--compact { padding: var(--space-4); }

.ds-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}
.ds-card__title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -.01em;
}
.ds-card__subtitle {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-top: 4px;
}

/* =============================================================================
   BUTTONS
   ============================================================================= */
.ds-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0 var(--space-4);
  height: 36px;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
  white-space: nowrap;
  user-select: none;
}
.ds-btn:disabled { opacity: .45; cursor: not-allowed; }

.ds-btn--primary {
  background: var(--text-primary);
  color: var(--bg-base);
  font-weight: 600;
}
.ds-btn--primary:hover:not(:disabled) { background: #fff; }

.ds-btn--accent {
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}
.ds-btn--accent:hover:not(:disabled) { background: var(--accent-hover); }

.ds-btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border-color: var(--border-default);
}
.ds-btn--ghost:hover:not(:disabled) {
  color: var(--text-primary);
  border-color: var(--border-strong);
  background: var(--bg-hover);
}

.ds-btn--danger {
  background: transparent;
  color: var(--danger);
  border-color: var(--danger-line);
}
.ds-btn--danger:hover:not(:disabled) {
  background: var(--danger-soft);
}

.ds-btn--sm { height: 28px; padding: 0 var(--space-3); font-size: var(--text-xs); }
.ds-btn--lg { height: 44px; padding: 0 var(--space-6); font-size: var(--text-md); }
.ds-btn--block { width: 100%; }

/* =============================================================================
   INPUT / TEXTAREA
   ============================================================================= */
.ds-input,
.ds-textarea {
  display: block;
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 0 var(--space-3);
  height: 38px;
  font-size: var(--text-md);
  color: var(--text-primary);
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.ds-textarea {
  height: auto;
  min-height: 80px;
  padding: var(--space-3);
  line-height: 1.55;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  resize: vertical;
}
.ds-input:hover,
.ds-textarea:hover { border-color: var(--border-strong); }
.ds-input:focus,
.ds-textarea:focus {
  border-color: var(--accent-line);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
/* fallback overrides pros inputs antigos ainda usarem foco novo */
input:focus, textarea:focus {
  outline: none;
}

.ds-field { display: flex; flex-direction: column; gap: 6px; margin-bottom: var(--space-4); }
.ds-field__label {
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0;
  text-transform: none;
}
.ds-field__hint {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: 2px;
}

/* =============================================================================
   BADGES
   ============================================================================= */
.ds-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .02em;
  border: 1px solid transparent;
  white-space: nowrap;
}
.ds-badge--default {
  background: var(--bg-elevated);
  border-color: var(--border-default);
  color: var(--text-secondary);
}
.ds-badge--accent { background: var(--accent-soft); color: var(--accent-hover); border-color: var(--accent-line); }
.ds-badge--success { background: var(--success-soft); color: var(--success); border-color: var(--success-line); }
.ds-badge--danger { background: var(--danger-soft); color: var(--danger); border-color: var(--danger-line); }
.ds-badge--warning { background: var(--warning-soft); color: var(--warning); border-color: var(--warning-line); }
.ds-badge--info { background: var(--info-soft); color: var(--info); border-color: var(--info-line); }

.ds-badge__dot { width: 6px; height: 6px; border-radius: 50%; }

/* =============================================================================
   SEPARADORES E UTILITÁRIOS
   ============================================================================= */
.ds-divider { height: 1px; background: var(--border-subtle); margin: var(--space-4) 0; }
.ds-stack { display: flex; flex-direction: column; gap: var(--space-4); }
.ds-cluster { display: flex; align-items: center; gap: var(--space-3); flex-wrap: wrap; }

.ds-kbd {
  display: inline-flex;
  align-items: center;
  padding: 1px 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-bottom-width: 2px;
  border-radius: var(--radius-sm);
}

.ds-code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent-hover);
  background: var(--bg-elevated);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

/* =============================================================================
   SCROLLBAR
   ============================================================================= */
.clog, .rtbl, .ta { scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }
.clog::-webkit-scrollbar,
.rtbl::-webkit-scrollbar,
.ta::-webkit-scrollbar { width: 10px; height: 10px; }
.clog::-webkit-scrollbar-thumb,
.rtbl::-webkit-scrollbar-thumb,
.ta::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 5px;
  border: 2px solid transparent;
  background-clip: padding-box;
}
.clog::-webkit-scrollbar-thumb:hover,
.rtbl::-webkit-scrollbar-thumb:hover,
.ta::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, .22); background-clip: padding-box; border: 2px solid transparent; }
.clog::-webkit-scrollbar-track,
.rtbl::-webkit-scrollbar-track,
.ta::-webkit-scrollbar-track { background: transparent; }

/* =============================================================================
   ANIMAÇÕES
   ============================================================================= */
@keyframes pulse {
  0%   { transform: scale(.6);  opacity: .55; }
  70%  { transform: scale(2.4); opacity: 0;   }
  100% { transform: scale(2.4); opacity: 0;   }
}

@keyframes shine {
  0%   { transform: translateX(-120%); }
  100% { transform: translateX(320%);  }
}

@keyframes fadein {
  from { opacity: 0; transform: translateY(4px); }
  to   { opacity: 1; transform: translateY(0); }
}
.ds-fadein { animation: fadein var(--dur-slow) var(--ease); }

/* =============================================================================
   COMPAT — SELECTORS LEGADOS (HTML antigo com estilos inline)
   Mantém funcionalidade dos hovers antigos até a migração completa.
   ============================================================================= */
.rrow:hover { background: var(--bg-hover) !important; }
.navb:hover { color: var(--text-primary) !important; }
.cta:hover { filter: brightness(1.08); }
.ghost:hover {
  border-color: var(--border-strong) !important;
  color: var(--text-primary) !important;
}
.threads-box:hover { border-color: var(--border-strong); }
.threads-box:focus-within {
  border-color: var(--accent-line);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.threads-box button:hover {
  background: var(--bg-hover) !important;
  color: var(--text-primary) !important;
}
.thpreset:hover {
  border-color: var(--border-strong) !important;
  color: var(--text-primary) !important;
  transform: translateY(-1px);
}
.thpreset:active { transform: translateY(0); }

.cta-start:hover:not([style*="not-allowed"]) {
  filter: brightness(1.08);
  transform: translateY(-1px);
}
.cta-start:active { transform: translateY(0); filter: brightness(.98); }
.cta-start::after {
  content: "";
  position: absolute;
  top: 0; left: -60%;
  width: 40%; height: 100%;
  background: linear-gradient(105deg, transparent 20%, rgba(255,255,255,.35) 50%, transparent 80%);
  animation: shine 3.4s ease-in-out infinite;
  pointer-events: none;
}

.plat-search:focus-within {
  border-color: var(--accent-line) !important;
  box-shadow: 0 0 0 3px var(--accent-soft) !important;
}
.plat-search:hover { border-color: var(--border-strong); }
.plat-search input::placeholder { color: var(--text-faint); }
.plat-search input:focus { box-shadow: none !important; border: none !important; }
.plat-search button:hover {
  background: var(--danger-soft) !important;
  border-color: var(--danger-line) !important;
  color: var(--danger) !important;
}

button[style*="border-radius:10px"]:hover {
  border-color: var(--border-strong) !important;
  color: var(--text-primary) !important;
  transform: translateY(-1px);
}
button[style*="border-radius:10px"]:active { transform: translateY(0); }

/* Old kbd (was styled from HTML) */
kbd {
  display: inline-block;
  padding: 1px 5px;
  font-size: 9px;
  font-weight: 800;
  letter-spacing: .06em;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
}