/*
 * Award UI — final polish layer (tool workspaces, diff, splits, chrome).
 * Loads after shadcn-ui.css; uses existing theme variables.
 */

/* -------------------------------------------------------------------------- */
/* Workspace: editorial rhythm                                                    */
/* -------------------------------------------------------------------------- */

.workspace {
  scroll-behavior: smooth;
}

/* Title in panel chrome (most tools) or legacy first-child layout */
.tool-page-header .tool-title,
#workspace > .tool-title:first-of-type {
  margin-top: 0;
  letter-spacing: -0.035em;
}

.tool-page-header .tool-desc,
#workspace > .tool-desc:first-of-type {
  font-size: 14px;
  line-height: 1.65;
  max-width: 72ch;
  margin-bottom: 18px;
}

/* -------------------------------------------------------------------------- */
/* Split panes (JSON Diff, etc.)                                                  */
/* -------------------------------------------------------------------------- */

#workspace .split-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  align-items: stretch;
  margin: 8px 0 12px;
  padding: 20px 22px 22px;
  border-radius: var(--radius-xl, 18px);
  background: linear-gradient(
    165deg,
    color-mix(in srgb, var(--bg-secondary) 88%, var(--bg-primary)) 0%,
    color-mix(in srgb, var(--bg-primary) 92%, transparent) 100%
  );
  border: 1px solid color-mix(in srgb, var(--border) 85%, transparent);
  box-shadow:
    0 1px 0 color-mix(in srgb, var(--text) 4%, transparent),
    0 18px 48px rgba(0, 0, 0, 0.22);
}

@media (max-width: 900px) {
  #workspace .split-row {
    grid-template-columns: 1fr;
    padding: 16px;
  }
}

#workspace .split-row .split-half {
  min-width: 0;
}

/* -------------------------------------------------------------------------- */
/* Primary actions (Compare, etc.)                                                */
/* -------------------------------------------------------------------------- */

.tool-action-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  margin: 8px 0 22px;
  padding: 4px 0;
}

.tool-action-bar .btn-primary {
  min-width: 168px;
  padding: 12px 32px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.02em;
  border-radius: 999px;
  box-shadow:
    0 2px 12px rgba(0, 0, 0, 0.25),
    0 0 0 1px color-mix(in srgb, var(--accent) 25%, transparent);
}

.tool-action-bar .btn-primary:hover {
  transform: translateY(-1px);
}

@media (prefers-reduced-motion: reduce) {
  .tool-action-bar .btn-primary:hover {
    transform: none;
  }
}

/* -------------------------------------------------------------------------- */
/* Diff output — crisp semantic colors                                            */
/* -------------------------------------------------------------------------- */

.io-diff-line {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-family: ui-monospace, 'SF Mono', 'Fira Code', Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  line-height: 1.6;
  padding: 12px 16px;
  margin: 0 0 10px;
  border-radius: 12px;
  border-left: 4px solid transparent;
  transition: background 0.15s ease;
}

.io-diff-prefix {
  flex: 0 0 1.25em;
  font-weight: 700;
  font-size: 13px;
  opacity: 0.95;
}

.io-diff-line--added {
  border-left-color: #34d399;
  background: linear-gradient(
    105deg,
    color-mix(in srgb, #34d399 16%, transparent) 0%,
    color-mix(in srgb, var(--bg-secondary) 40%, transparent) 48%
  );
  color: var(--text);
  box-shadow: inset 0 1px 0 color-mix(in srgb, #34d399 25%, transparent);
}

.io-diff-line--added .io-diff-prefix {
  color: #6ee7b7;
}

.io-diff-line--removed {
  border-left-color: #fb7185;
  background: linear-gradient(
    105deg,
    color-mix(in srgb, #fb7185 14%, transparent) 0%,
    color-mix(in srgb, var(--bg-secondary) 40%, transparent) 48%
  );
  color: var(--text);
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fb7185 22%, transparent);
}

.io-diff-line--removed .io-diff-prefix {
  color: #fda4af;
}

.io-diff-line--changed {
  border-left-color: #fbbf24;
  background: linear-gradient(
    105deg,
    color-mix(in srgb, #fbbf24 14%, transparent) 0%,
    color-mix(in srgb, var(--bg-secondary) 42%, transparent) 50%
  );
  color: var(--text);
  box-shadow: inset 0 1px 0 color-mix(in srgb, #fbbf24 22%, transparent);
}

.io-diff-line--changed .io-diff-prefix {
  color: #fcd34d;
}

[data-theme='light'] .io-diff-line--added {
  background: linear-gradient(
    105deg,
    color-mix(in srgb, #059669 12%, transparent) 0%,
    color-mix(in srgb, var(--bg-secondary) 70%, transparent) 50%
  );
}

[data-theme='light'] .io-diff-line--removed {
  background: linear-gradient(
    105deg,
    color-mix(in srgb, #e11d48 10%, transparent) 0%,
    color-mix(in srgb, var(--bg-secondary) 70%, transparent) 50%
  );
}

[data-theme='light'] .io-diff-line--changed {
  background: linear-gradient(
    105deg,
    color-mix(in srgb, #d97706 12%, transparent) 0%,
    color-mix(in srgb, var(--bg-secondary) 70%, transparent) 50%
  );
}

/* -------------------------------------------------------------------------- */
/* I/O toolbar buttons — pill controls                                            */
/* -------------------------------------------------------------------------- */

#workspace .io-area .io-actions .btn.io-action-btn {
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: -0.01em;
  background: color-mix(in srgb, var(--bg-primary) 35%, var(--bg-tertiary));
  border: 1px solid color-mix(in srgb, var(--border) 92%, transparent);
  transition:
    background 0.18s ease,
    border-color 0.18s ease,
    box-shadow 0.18s ease;
}

#workspace .io-area .io-actions .btn.io-action-btn:hover {
  background: var(--bg-hover);
  border-color: color-mix(in srgb, var(--text-muted) 35%, var(--border));
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

/* -------------------------------------------------------------------------- */
/* Tabs + panel chrome                                                            */
/* -------------------------------------------------------------------------- */

.tabs-bar {
  border-bottom: 1px solid color-mix(in srgb, var(--border) 88%, transparent);
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--bg-secondary) 96%, transparent) 0%,
    var(--bg-primary) 100%
  );
}

.panel-tool-chrome {
  background: linear-gradient(
    180deg,
    color-mix(in srgb, var(--bg-secondary) 94%, transparent),
    color-mix(in srgb, var(--bg-primary) 88%, transparent)
  );
  border-bottom: 1px solid color-mix(in srgb, var(--border) 75%, transparent);
}

.panel-tool-chrome-inner {
  gap: 14px 20px;
}

.tool-page-header .breadcrumb {
  font-size: 12px;
  letter-spacing: 0.02em;
}

.tool-page-header .breadcrumb-item a {
  border-radius: 4px;
  padding: 2px 4px;
  margin: -2px -4px;
  transition: background 0.15s ease;
}

.tool-page-header .breadcrumb-item a:hover {
  background: color-mix(in srgb, var(--text) 8%, transparent);
  text-decoration: none;
}

/* -------------------------------------------------------------------------- */
/* Sidebar — calmer density                                                       */
/* -------------------------------------------------------------------------- */

.sidebar-nav-item {
  font-size: 13px;
}

.sidebar-section-header {
  font-size: 10px;
  opacity: 0.92;
}

/* -------------------------------------------------------------------------- */
/* Header — search chip                                                           */
/* -------------------------------------------------------------------------- */

.header-spotlight-trigger {
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--text) 6%, transparent);
}

/* -------------------------------------------------------------------------- */
/* Category + tool cards (non-home)                                               */
/* -------------------------------------------------------------------------- */

.category-tool-card {
  border-radius: var(--radius-xl, 18px);
  border: 1px solid color-mix(in srgb, var(--border) 90%, transparent);
  transition:
    transform 0.22s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.22s ease,
    border-color 0.2s ease;
}

.category-tool-card:hover {
  border-color: color-mix(in srgb, var(--text-muted) 28%, var(--border));
}