/* ============================================================ */
/* Savannah UI — Components                                    */
/* Buttons, modals, toasts, icons, code blocks, file upload   */
/* ============================================================ */

/* ── Icon Button (header / toolbar) ── */
.icon-btn {
  width: 34px;
  height: 34px;
  border-radius: var(--border-radius-sm);
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  flex-shrink: 0;
}

.icon-btn:hover {
  background: color-mix(in srgb, var(--fg) 8%, transparent);
  color: var(--fg);
}

.icon-btn.active {
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
}

.icon-btn svg { width: 16px; height: 16px; }

/* ── Primary Button ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: var(--border-radius-sm);
  border: 1px solid transparent;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-family);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn:hover {
  background: var(--accent-hover);
  box-shadow: 0 2px 12px color-mix(in srgb, var(--accent) 35%, transparent);
}

.btn:active { transform: scale(0.98); }

.btn-ghost {
  background: transparent;
  color: var(--fg);
  border-color: var(--border);
}

.btn-ghost:hover {
  background: color-mix(in srgb, var(--fg) 8%, transparent);
  border-color: color-mix(in srgb, var(--fg) 30%, var(--border));
  box-shadow: none;
}

.btn-danger {
  background: var(--color-error);
}

.btn-danger:hover {
  background: color-mix(in srgb, var(--color-error) 80%, #000);
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

/* ── Toggle Switch ── */
.toggle-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.toggle-input { display: none; }

.toggle-track {
  width: 36px;
  height: 20px;
  border-radius: 20px;
  background: var(--border);
  position: relative;
  transition: background var(--transition);
  flex-shrink: 0;
}

.toggle-input:checked + .toggle-track {
  background: var(--accent);
}

.toggle-track::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  top: 3px;
  left: 3px;
  transition: transform var(--transition);
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.toggle-input:checked + .toggle-track::after {
  transform: translateX(16px);
}

.toggle-label {
  font-size: 13px;
  color: var(--fg);
}

/* ── Code Block ── */
pre {
  background: var(--hl-bg);
  border: 1px solid var(--border);
  border-radius: var(--border-radius-sm);
  padding: 14px 16px;
  overflow-x: auto;
  margin: 10px 0;
  position: relative;
}

code {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--hl-fg);
  line-height: 1.55;
}

p code {
  background: color-mix(in srgb, var(--hl-bg) 80%, transparent);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 5px;
  font-size: 12px;
}

.code-copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: color-mix(in srgb, var(--border) 60%, transparent);
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 4px;
  padding: 3px 8px;
  font-size: 11px;
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.code-copy-btn:hover {
  background: color-mix(in srgb, var(--accent) 20%, var(--panel));
  color: var(--accent);
}

/* Syntax token colors */
.tok-keyword  { color: var(--hl-keyword); }
.tok-string   { color: var(--hl-string); }
.tok-comment  { color: var(--hl-comment); font-style: italic; }
.tok-function { color: var(--hl-function); }
.tok-number   { color: var(--hl-number); }
.tok-builtin  { color: var(--hl-builtin); }

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: overlay-in 0.18s ease;
}

@keyframes overlay-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.modal {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--border-radius-lg);
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  animation: modal-in 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modal-in {
  from { opacity: 0; transform: scale(0.93) translateY(8px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 14px;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--fg);
}

.modal-body {
  padding: 20px;
}

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* ── Toast Notifications ── */
.toast-container {
  position: fixed;
  bottom: 90px;
  right: 20px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--border-radius);
  padding: 10px 16px;
  font-size: 13px;
  color: var(--fg);
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: toast-in 0.22s ease;
  pointer-events: auto;
  max-width: 320px;
  min-width: 200px;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

.toast.fade-out {
  animation: toast-out 0.3s ease forwards;
}

@keyframes toast-out {
  to { opacity: 0; transform: translateX(20px); }
}

.toast-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.toast.success .toast-dot { background: var(--color-success); }
.toast.error   .toast-dot { background: var(--color-error); }
.toast.warning .toast-dot { background: var(--color-warning); }
.toast.info    .toast-dot { background: var(--color-info); }

/* ── File Upload Drop Zone ── */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--border-radius);
  padding: 28px 20px;
  text-align: center;
  color: var(--muted);
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  font-size: 13px;
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, transparent);
  color: var(--accent);
}

.drop-zone-icon {
  width: 32px;
  height: 32px;
  margin: 0 auto 10px;
  opacity: 0.5;
}

/* ── Form Inputs ── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

.form-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.form-input,
.form-select,
.form-textarea {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: var(--border-radius-sm);
  padding: 9px 12px;
  color: var(--fg);
  font-family: var(--font-family);
  font-size: 13px;
  outline: none;
  transition: border-color var(--transition), background var(--transition-slow);
  width: 100%;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: color-mix(in srgb, var(--accent) 70%, var(--input-border));
}

.form-input::placeholder,
.form-textarea::placeholder { color: var(--muted); }

.form-select {
  appearance: none;
  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='%23888' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 32px;
  cursor: pointer;
}

/* ── Divider ── */
.divider {
  height: 1px;
  background: var(--border);
  margin: 16px 0;
}

/* ── Badge ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  border: 1px solid currentColor;
}

.badge-accent  { color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, transparent); }
.badge-success { color: var(--color-success); background: color-mix(in srgb, var(--color-success) 12%, transparent); }
.badge-warning { color: var(--color-warning); background: color-mix(in srgb, var(--color-warning) 12%, transparent); }
.badge-error   { color: var(--color-error); background: color-mix(in srgb, var(--color-error) 12%, transparent); }

/* ── Voice recording indicator ── */
.recording-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 20px;
  background: color-mix(in srgb, var(--color-error) 12%, var(--panel));
  border: 1px solid color-mix(in srgb, var(--color-error) 30%, var(--border));
  font-size: 12px;
  color: var(--color-error);
  animation: recording-pulse 1.5s ease-in-out infinite;
}

@keyframes recording-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.recording-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-error);
  animation: recording-pulse 1s ease-in-out infinite;
}

/* ── Theme Switcher Swatch Grid ── */
.theme-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
  gap: 8px;
}

.theme-swatch {
  border-radius: var(--border-radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
  font-size: 10px;
  text-align: center;
  color: var(--fg);
}

.theme-swatch:hover { transform: scale(1.04); }
.theme-swatch.active { border-color: var(--accent); }

.ob-chip {
  padding: 6px 13px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
}
.ob-chip:hover { border-color: var(--accent); color: var(--accent); }
.ob-chip.selected {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

.theme-swatch-colors {
  display: flex;
  height: 32px;
}

.theme-swatch-colors span {
  flex: 1;
}

.theme-swatch-name {
  display: block;
  padding: 4px 2px;
  font-size: 10px;
  text-transform: capitalize;
  color: var(--muted);
}