/* ==========================================================================
   Components
   ========================================================================== */

/* ---------------------------- Buttons ---------------------------- */

.btn {
  --btn-bg: var(--bg-elevated);
  --btn-fg: var(--text-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 11px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-strong);
  background: var(--btn-bg);
  color: var(--btn-fg);
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.btn:hover { transform: translateY(-1px); border-color: var(--amber-500); }
.btn:active { transform: translateY(0); }
.btn svg { width: 16px; height: 16px; }

.btn-primary {
  background: linear-gradient(160deg, var(--amber-500), var(--amber-600));
  color: var(--text-on-amber);
  border-color: var(--amber-600);
  box-shadow: 0 6px 20px var(--amber-glow);
}
.btn-primary:hover { box-shadow: 0 8px 26px var(--amber-glow); }

.btn-ghost {
  background: transparent;
  border-color: var(--border-hairline);
  color: var(--text-secondary);
}
.btn-ghost:hover { color: var(--text-primary); }

.btn-sm { padding: 7px 14px; font-size: 0.8rem; }
.btn-icon { padding: 9px; border-radius: var(--radius-sm); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

/* ---------------------------- Panels / Cards ---------------------------- */

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-panel);
  padding: var(--space-5);
}

.panel-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin-bottom: var(--space-4);
}
.panel-title .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--amber-500); box-shadow: 0 0 6px var(--amber-500); }

/* ---------------------------- Signature: LED permission toggle ---------------------------- */

.led-toggle {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  user-select: none;
  background: transparent;
  border: none;
  padding: 0;
}

.led-toggle .led-glass {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: var(--bg-inset);
  border: 1px solid var(--border-strong);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-tertiary);
  transition: all var(--dur-fast) var(--ease-out);
  position: relative;
  overflow: hidden;
}

.led-toggle .led-glass::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 30%, rgba(255,255,255,0.08), transparent 70%);
}

.led-toggle[data-on="true"] .led-glass {
  color: var(--text-on-amber);
  background: var(--amber-500);
  border-color: var(--amber-300);
  box-shadow: 0 0 16px var(--amber-glow), inset 0 0 8px rgba(0,0,0,0.15);
}

.led-toggle[data-on="true"].role-special .led-glass {
  background: var(--cyan-500);
  border-color: var(--cyan-400);
  box-shadow: 0 0 16px var(--cyan-glow), inset 0 0 8px rgba(0,0,0,0.15);
  color: #06181a;
}

.led-toggle .led-label {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  color: var(--text-tertiary);
  letter-spacing: 0.05em;
}

.led-row { display: flex; gap: var(--space-3); }

.perm-block {
  padding: var(--space-3);
  border-radius: var(--radius-md);
  background: var(--bg-inset);
  border: 1px solid var(--border-hairline);
}
.perm-block-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: var(--space-3);
}
.perm-block-head h4 { margin: 0; font-size: 0.85rem; }
.perm-block-head .octal-chip {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--amber-300);
  background: rgba(255,176,0,0.08);
  border: 1px solid rgba(255,176,0,0.2);
  padding: 2px 8px;
  border-radius: 6px;
}

/* ---------------------------- Output readouts ---------------------------- */

.output-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.readout {
  background: var(--bg-inset);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
}
.readout .readout-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  margin-bottom: 4px;
}
.readout .readout-value {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  color: var(--amber-300);
  word-break: break-all;
}

.chmod-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background: var(--bg-inset);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-mono);
}
.chmod-bar .prompt { color: var(--safe-500); flex-shrink: 0; }
.chmod-bar .cmd-text { color: var(--text-primary); flex: 1; overflow-x: auto; white-space: nowrap; }
.chmod-bar .cmd-text .flag { color: var(--amber-300); }

/* ---------------------------- Badges ---------------------------- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border-hairline);
  text-transform: uppercase;
}
.badge-safe { color: var(--safe-500); border-color: rgba(61,220,132,0.3); background: var(--safe-glow); }
.badge-warn { color: var(--warn-500); border-color: rgba(255,207,61,0.3); background: var(--warn-glow); }
.badge-crit { color: var(--crit-500); border-color: rgba(255,92,92,0.3); background: var(--crit-glow); }
.badge-info { color: var(--cyan-400); border-color: rgba(43,196,209,0.3); background: var(--cyan-glow); }
.badge-neutral { color: var(--text-tertiary); }

/* ---------------------------- Tooltip ---------------------------- */

[data-tooltip] { position: relative; }
[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-strong);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
  z-index: 50;
  box-shadow: var(--shadow-soft);
}
[data-tooltip]:hover::after, [data-tooltip]:focus-visible::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------------------------- Toasts ---------------------------- */

.toast-region {
  position: fixed;
  right: var(--space-5);
  bottom: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  z-index: 200;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-left: 3px solid var(--amber-500);
  color: var(--text-primary);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  box-shadow: var(--shadow-panel);
  animation: toast-in var(--dur-med) var(--ease-out);
  max-width: 320px;
}
.toast.toast-success { border-left-color: var(--safe-500); }
.toast.toast-error { border-left-color: var(--crit-500); }

/* ---------------------------- Modal ---------------------------- */

.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(4,6,7,0.72);
  backdrop-filter: blur(3px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 150;
  padding: var(--space-4);
}
.modal-overlay.active { display: flex; animation: fade-in var(--dur-fast) var(--ease-out); }

.modal {
  background: var(--bg-panel);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-panel);
  max-width: 560px;
  width: 100%;
  max-height: 86vh;
  overflow-y: auto;
  padding: var(--space-6);
  animation: modal-in var(--dur-med) var(--ease-out);
}

.modal-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
}

/* ---------------------------- Misc ---------------------------- */

.kbd {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  background: var(--bg-inset);
  border: 1px solid var(--border-strong);
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 2px 6px;
  color: var(--text-secondary);
}

.divider { height: 1px; background: var(--border-hairline); border: none; margin: var(--space-5) 0; }

.copy-btn { display: inline-flex; align-items: center; gap: 6px; }

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-inset);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: 8px 10px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  cursor: pointer;
}

/* ---------------------------- Author credit ---------------------------- */

.author-credit {
  font-size: 0.72rem;
  color: var(--text-tertiary);
  text-align: center;
  line-height: 1.6;
}
.author-credit strong { color: var(--text-secondary); }
.author-credit .heart, .footer-author-credit .heart, .hero-author-badge .heart { color: var(--crit-500); }

.author-social {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 6px;
  flex-wrap: wrap;
}
.author-social a {
  width: 26px; height: 26px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-tertiary);
  background: var(--bg-inset);
  border: 1px solid var(--border-hairline);
  transition: color var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out);
}
.author-social a svg { width: 14px; height: 14px; }
.author-social a:hover { color: var(--amber-300); border-color: var(--amber-500); }

.author-social-lg {
  justify-content: flex-start;
  margin-top: 4px;
  flex-wrap: wrap;
}
/* Override the compact icon-badge sizing above — these are full labeled
   buttons (icon + text), not fixed-size icon tiles, so let them size to
   their content instead of being squeezed into a 26px box. */
.author-social-lg a {
  width: auto;
  height: auto;
  white-space: nowrap;
  flex-shrink: 0;
}
.author-social-lg a svg { flex-shrink: 0; }

.hero-author-badge {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-tertiary);
  margin: var(--space-4) 0 0;
}
.hero-author-badge a { color: var(--text-secondary); font-weight: 600; }
.hero-author-badge a:hover { color: var(--amber-300); }

.footer-author-credit {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-tertiary);
  margin: var(--space-2) 0 var(--space-6);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}
.footer-author-credit strong { color: var(--text-secondary); }

/* ---------------------------- Quiz options ---------------------------- */

.quiz-options { display: flex; flex-direction: column; gap: var(--space-2); }

.quiz-option {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  width: 100%;
  text-align: left;
  background: var(--bg-inset);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  color: var(--text-primary);
  font-size: 0.88rem;
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.quiz-option:hover:not(.answered) { border-color: var(--amber-500); }
.quiz-option-letter {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-tertiary);
  flex-shrink: 0;
}
.quiz-option.answered { cursor: default; }
.quiz-option.correct { border-color: var(--safe-500); background: var(--safe-glow); }
.quiz-option.correct .quiz-option-letter { background: var(--safe-500); color: #0a0c0d; border-color: var(--safe-500); }
.quiz-option.incorrect { border-color: var(--crit-500); background: var(--crit-glow); }
.quiz-option.incorrect .quiz-option-letter { background: var(--crit-500); color: #0a0c0d; border-color: var(--crit-500); }