/* ==========================================================================
   Tool UI — shared panels, toolbars, results
   ========================================================================== */

.toolbar { display: flex; align-items: center; gap: var(--space-2); flex-wrap: wrap; margin-bottom: var(--space-4); }
.toolbar-spacer { flex: 1; }

.split-view { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); align-items: start; }
.split-view.single { grid-template-columns: 1fr; }

.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; display: flex; flex-direction: column; }
.panel-head {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-2);
  padding: 10px var(--space-4); border-bottom: 1px solid var(--border); background: var(--bg-elevated);
}
.panel-title { font-size: 12.5px; font-weight: 600; color: var(--text-muted); display: flex; align-items: center; gap: 8px; }
.panel-actions { display: flex; align-items: center; gap: 4px; }
.panel-body { padding: var(--space-4); flex: 1; }
.panel-body.no-pad { padding: 0; }

.panel .textarea, .panel textarea {
  border: none; border-radius: 0; background: transparent; padding: var(--space-4);
  min-height: 260px; width: 100%; box-shadow: none;
}
.panel .textarea:focus { box-shadow: none; }

.output-code {
  margin: 0; padding: var(--space-4); font-family: var(--font-mono); font-size: 13px;
  line-height: 1.65; white-space: pre-wrap; overflow-wrap: anywhere; min-height: 260px;
  color: var(--text); max-height: 520px; overflow-y: auto;
}
.output-code:empty::before { content: attr(data-placeholder); color: var(--text-faint); }

.copy-icon-btn { width: 30px; height: 30px; }

.panel-meta {
  display: flex; gap: var(--space-4); padding: 8px var(--space-4); border-top: 1px solid var(--border);
  font-size: 11.5px; color: var(--text-faint); flex-wrap: wrap;
}

.error-banner {
  display: flex; align-items: flex-start; gap: var(--space-3);
  background: var(--danger-soft); border: 1px solid rgba(240, 85, 75, .35);
  color: var(--danger); border-radius: var(--radius-md); padding: 12px 14px;
  font-size: 13px; margin-bottom: var(--space-4); line-height: 1.55;
}
.error-banner i { margin-top: 2px; flex: 0 0 auto; }
.error-banner strong { display: block; margin-bottom: 2px; color: var(--danger); }
.error-banner code { font-family: var(--font-mono); font-size: 12px; opacity: .9; }

.success-banner {
  display: flex; align-items: center; gap: var(--space-3);
  background: var(--success-soft); border: 1px solid rgba(63, 207, 142, .35);
  color: var(--success); border-radius: var(--radius-md); padding: 10px 14px;
  font-size: 13px; margin-bottom: var(--space-4);
}
.warning-banner {
  display: flex; align-items: flex-start; gap: var(--space-3);
  background: var(--warning-soft); border: 1px solid rgba(240, 180, 41, .35);
  color: var(--warning); border-radius: var(--radius-md); padding: 10px 14px;
  font-size: 12.5px; margin-bottom: var(--space-4); line-height: 1.55;
}

/* JSON syntax highlight */
.tok-key { color: #4c9ffe; }
.tok-string { color: var(--success); }
.tok-number { color: #f0b429; }
.tok-boolean { color: #c084fc; }
.tok-null { color: var(--text-faint); font-style: italic; }
.tok-punct { color: var(--text-faint); }

/* Stat grid (word counter, etc.) */
.stat-mini-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); margin-bottom: var(--space-5); }
.stat-mini { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: var(--space-4); text-align: center; }
.stat-mini-value { font-family: var(--font-mono); font-size: 22px; font-weight: 700; color: var(--accent); }
.stat-mini-label { font-size: 11.5px; color: var(--text-muted); margin-top: 4px; }

/* Result tables (regex matches, HTTP status) */
.result-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.result-table th {
  text-align: left; font-size: 11px; text-transform: uppercase; letter-spacing: .05em;
  color: var(--text-faint); font-weight: 600; padding: 8px 10px; border-bottom: 1px solid var(--border);
}
.result-table td { padding: 10px; border-bottom: 1px solid var(--border); vertical-align: top; }
.result-table tr:last-child td { border-bottom: none; }
.result-table code { font-family: var(--font-mono); font-size: 12.5px; background: var(--surface-2); padding: 2px 6px; border-radius: 4px; }

.status-list { display: flex; flex-direction: column; gap: 2px; }
.status-item {
  display: flex; align-items: center; gap: var(--space-4); padding: 12px 14px;
  border-radius: var(--radius-md); border: 1px solid var(--border); margin-bottom: 8px; background: var(--surface);
}
.status-code { font-family: var(--font-mono); font-weight: 700; font-size: 15px; width: 52px; flex: 0 0 auto; }
.status-code.s2xx { color: var(--success); }
.status-code.s3xx { color: var(--info); }
.status-code.s4xx { color: var(--warning); }
.status-code.s5xx { color: var(--danger); }
.status-body { flex: 1; min-width: 0; }
.status-name { font-size: 13.5px; font-weight: 600; }
.status-desc { font-size: 12.5px; color: var(--text-faint); margin-top: 2px; line-height: 1.5; }

/* Color converter */
.color-preview {
  height: 140px; border-radius: var(--radius-lg); border: 1px solid var(--border-strong);
  margin-bottom: var(--space-5); display: flex; align-items: flex-end; padding: var(--space-4);
  background-image:
    linear-gradient(45deg, #808080 25%, transparent 25%), linear-gradient(-45deg, #808080 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #808080 75%), linear-gradient(-45deg, transparent 75%, #808080 75%);
  background-size: 16px 16px; background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
}
.color-preview-fill { position: relative; border-radius: var(--radius-lg); }
.color-value-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); }
.color-value-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-md); padding: var(--space-3); }
.color-value-label { font-size: 11px; color: var(--text-faint); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 6px; }
.color-value-text { font-family: var(--font-mono); font-size: 14px; font-weight: 600; display: flex; align-items: center; justify-content: space-between; gap: 8px; }

/* Password strength */
.strength-meter { margin-top: var(--space-2); }
.strength-bars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; height: 5px; }
.strength-bars span { border-radius: 3px; background: var(--surface-3); transition: background-color .15s ease; }
.strength-label { font-size: 12px; margin-top: 6px; font-weight: 600; }
.strength-label.weak, .strength-bars.weak span:nth-child(-n+1) { color: var(--danger); }
.strength-bars.weak span:nth-child(-n+1) { background: var(--danger); }
.strength-label.fair { color: var(--warning); }
.strength-bars.fair span:nth-child(-n+2) { background: var(--warning); }
.strength-label.strong { color: var(--info); }
.strength-bars.strong span:nth-child(-n+3) { background: var(--info); }
.strength-label.very-strong { color: var(--success); }
.strength-bars.very-strong span { background: var(--success); }

.output-line {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-3);
  background: var(--surface); border: 1px solid var(--border-strong); border-radius: var(--radius-md);
  padding: 12px 14px; margin-bottom: var(--space-2);
}
.output-line .val { font-family: var(--font-mono); font-size: 14.5px; word-break: break-all; }

/* QR code */
.qr-wrap { display: flex; flex-direction: column; align-items: center; gap: var(--space-4); padding: var(--space-6) var(--space-4); }
.qr-canvas-frame { background: #fff; padding: 14px; border-radius: var(--radius-md); border: 1px solid var(--border-strong); }
.qr-canvas-frame canvas { display: block; }

/* Diff view */
.diff-view { border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; font-family: var(--font-mono); font-size: 12.5px; }
.diff-row { display: flex; }
.diff-gutter { width: 44px; flex: 0 0 auto; text-align: right; padding: 2px 8px; color: var(--text-faint); background: var(--bg-elevated); border-right: 1px solid var(--border); user-select: none; }
.diff-line { flex: 1; padding: 2px 12px; white-space: pre-wrap; overflow-wrap: anywhere; }
.diff-row.added .diff-line { background: var(--success-soft); }
.diff-row.added .diff-gutter { background: var(--success-soft); }
.diff-row.removed .diff-line { background: var(--danger-soft); }
.diff-row.removed .diff-gutter { background: var(--danger-soft); }
.diff-summary { display: flex; gap: var(--space-4); margin-bottom: var(--space-4); font-size: 12.5px; }
.diff-summary span { display: flex; align-items: center; gap: 6px; }
.diff-summary .dot { width: 8px; height: 8px; border-radius: 50%; }

/* Key/value block (JWT header & payload) */
.kv-block { margin-bottom: var(--space-4); }
.kv-block:last-child { margin-bottom: 0; }

.char-count-row { display: flex; justify-content: flex-end; font-size: 11.5px; color: var(--text-faint); margin-top: 6px; }

.notes-block { margin-top: var(--space-6); padding-top: var(--space-5); border-top: 1px solid var(--border); }
.notes-block h2 { font-size: 14.5px; margin-bottom: var(--space-3); }
.notes-block ul { list-style: disc; padding-left: 20px; }
.notes-block li { font-size: 13px; color: var(--text-muted); margin-bottom: 6px; line-height: 1.6; }

.regex-mark { background: var(--accent-soft); color: var(--accent); border-radius: 3px; padding: 0 2px; font-weight: 600; }