/**
 * PropArt™ generic theme — design tokens + reusable patterns.
 * Drop into any page: <link rel="stylesheet" href="propart-generic-theme.css">
 * Aliases match legacy theme.css / suite directory (--butterfly-blue, --suite-*).
 */

:root {
  /* —— Core brand (primary names) —— */
  --propart-purple: #5d50c6;
  --propart-purple-deep: #6a5bcf;
  --propart-pink: #e17897;
  --propart-pink-soft: #d4879f;
  --propart-teal: #6dd5c3;
  --propart-eggplant: #3d3366;

  /* Surfaces & type */
  --propart-ink: #3b3140;
  --propart-muted: #5c4f62;
  --propart-surface: #ffffff;
  --propart-surface-tint: #fcfaff;
  --propart-page-lilac: #b7a8dc;
  --propart-page-mist-start: #faf6ff;
  --propart-page-mist-mid: #ede4f7;
  --propart-page-mist-end: #f8f4fc;

  /* Transparent accents (borders, shadows) */
  --propart-border-pink: rgba(225, 120, 151, 0.22);
  --propart-border-strong: rgba(225, 120, 151, 0.35);
  --propart-purple-glow: rgba(93, 80, 198, 0.35);
  --propart-shadow-purple: rgba(93, 80, 198, 0.14);
  --propart-shadow-ink: rgba(44, 36, 53, 0.12);
  --propart-overlay-lilac: rgba(183, 168, 220, 0.45);
  --propart-overlay-teal: rgba(109, 213, 195, 0.18);

  /* —— Legacy aliases (theme.css / suite) —— */
  --base-charcoal: #36454f;
  --signature-navy: #000080;
  --tech-silver: #c0c0c0;
  --butterfly-blue: var(--propart-purple);
  --vibrant-pink: var(--propart-pink);

  --suite-border: var(--propart-border-strong);
  --suite-muted: var(--propart-muted);
  --suite-heading: var(--propart-ink);
  --suite-card: var(--propart-surface);
  --suite-shadow: var(--propart-shadow-purple);
  --suite-shadow-deep: var(--propart-shadow-ink);

  /* Radius & motion */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --propart-ease-out: cubic-bezier(0.45, 0.05, 0.25, 1);
  --propart-transition-fast: 0.15s ease;
  --propart-transition-med: 0.2s ease;

  /* Typography scale (optional) */
  --font-ui: "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-display: Georgia, "Times New Roman", serif;
  --font-size-body: 1rem;
  --font-size-small: 0.875rem;
}

/* —— Page shells —— */

.propart-bg-page {
  background:
    radial-gradient(120% 80% at 50% -10%, var(--propart-overlay-lilac), transparent),
    radial-gradient(90% 60% at 100% 30%, var(--propart-overlay-teal), transparent),
    linear-gradient(165deg, var(--propart-page-mist-start) 0%, var(--propart-page-mist-mid) 45%, var(--propart-page-mist-end) 100%);
}

.propart-surface-panel {
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-lg);
  box-shadow: 0 16px 48px rgba(60, 40, 90, 0.12), inset 0 1px 0 #fff;
}

.propart-accent-strip {
  display: block;
  height: 4px;
  margin: -1px -1px 0;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: linear-gradient(90deg, var(--propart-purple), var(--propart-teal), var(--propart-pink));
}

/* —— Typography utilities —— */

.propart-text-gradient-display {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
  background: linear-gradient(
    135deg,
    var(--propart-eggplant),
    var(--propart-purple-deep),
    #c96b8a
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.propart-text-gradient-tagline {
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: linear-gradient(90deg, var(--propart-purple-deep), var(--propart-pink-soft));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* —— Buttons & links —— */

.propart-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-pill);
  padding: 10px 18px;
  font-weight: 700;
  font-size: 0.86rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  background: linear-gradient(135deg, var(--propart-purple), var(--propart-pink));
  color: #fff;
  box-shadow: 0 4px 14px rgba(93, 80, 198, 0.32);
  transition: transform var(--propart-transition-fast), box-shadow var(--propart-transition-fast);
}

.propart-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(93, 80, 198, 0.35);
}

.propart-btn-primary:focus-visible {
  outline: 2px solid var(--propart-purple);
  outline-offset: 2px;
}

.propart-link {
  color: var(--propart-purple);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(93, 80, 198, 0.35);
  transition: border-color var(--propart-transition-med);
}

.propart-link:hover {
  border-bottom-color: var(--propart-pink);
}

/* —— Cards (optional) —— */

.propart-card {
  border-radius: 20px;
  border: 1px solid var(--propart-border-pink);
  background: linear-gradient(180deg, #fff 0%, var(--propart-surface-tint) 55%, #faf7fd 100%);
  box-shadow: 0 4px 16px rgba(93, 80, 198, 0.08), 0 12px 32px rgba(44, 36, 53, 0.06), inset 0 1px 0 #fff;
}

.propart-card--raised {
  border-color: rgba(93, 80, 198, 0.32);
  box-shadow: 0 6px 20px rgba(93, 80, 198, 0.12), 0 20px 44px rgba(93, 80, 198, 0.14), inset 0 1px 0 #fff;
}

/* —— Toolbar & action buttons (universal)
      Visual parity with PropArt™ Color Blend Visualizer — top toolbar
      https://propart-color-blend.web.app/ — use with .propart-toolbar + .propart-btn-tb —— */

:root {
  --propart-tb-icon-size: 40px;
  --propart-tb-min-height: 38px;
  --propart-tb-radius: 12px;
  --propart-tb-radius-pill: 999px;
  --propart-tb-gradient-start: var(--propart-purple);
  --propart-tb-gradient-end: var(--propart-teal);
  --propart-tb-gradient-hover-start: #4b3fae;
  --propart-tb-gradient-hover-end: #57c6b4;
  --propart-tb-neutral-a: #a89bb5;
  --propart-tb-neutral-b: #8b7a9b;
  --propart-tb-neutral-flat: #c4c2d4;
  --propart-tb-neutral-ink: #2a2438;
  --propart-tb-shadow: rgba(75, 54, 102, 0.3);
  --propart-tb-shadow-hover: rgba(75, 54, 102, 0.42);
  --propart-tb-rim: rgba(255, 255, 255, 0.38);
}

.propart-toolbar {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 22px;
  background: linear-gradient(
    135deg,
    rgba(212, 200, 232, 0.88) 0%,
    rgba(212, 244, 240, 0.88) 100%
  );
  border-radius: var(--radius-md);
  border: 2px solid var(--propart-purple);
  box-shadow: 0 4px 12px rgba(93, 80, 198, 0.2);
}

.propart-toolbar--inline {
  display: inline-flex;
  justify-content: flex-start;
}

.propart-toolbar__divider {
  width: 1px;
  align-self: stretch;
  min-height: 32px;
  margin: 0 4px;
  background: rgba(93, 80, 198, 0.2);
  flex-shrink: 0;
}

/* Base: “universal” tool control (squircle or pill) */
.propart-btn-tb {
  position: relative;
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: var(--propart-tb-min-height);
  padding: 0.45rem 1.25rem;
  border-radius: var(--propart-tb-radius);
  border: 1px solid var(--propart-tb-rim);
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  color: #fff;
  cursor: pointer;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
  background: linear-gradient(
    135deg,
    var(--propart-tb-gradient-start) 0%,
    var(--propart-tb-gradient-end) 100%
  );
  box-shadow:
    0 3px 10px var(--propart-tb-shadow),
    inset 0 1px 0 rgba(255, 255, 255, 0.35);
  transition:
    transform var(--propart-transition-fast),
    box-shadow var(--propart-transition-fast),
    background 0.25s ease,
    filter 0.2s ease;
}

.propart-btn-tb:hover:not(:disabled):not(.propart-btn-tb--muted) {
  background: linear-gradient(
    135deg,
    var(--propart-tb-gradient-hover-start) 0%,
    var(--propart-tb-gradient-hover-end) 100%
  );
  box-shadow:
    0 5px 14px var(--propart-tb-shadow-hover),
    inset 0 1px 0 rgba(255, 255, 255, 0.42);
  transform: translateY(-1px);
}

.propart-btn-tb:focus-visible {
  outline: 2px solid var(--propart-purple-deep);
  outline-offset: 2px;
}

.propart-btn-tb:active:not(:disabled):not(.propart-btn-tb--muted) {
  transform: translateY(0);
}

/* Icon-only squircle (~40×40) */
.propart-btn-tb--icon {
  width: var(--propart-tb-icon-size);
  min-width: var(--propart-tb-icon-size);
  padding: 0.45rem;
}

/* Wide capsule (Export / PDF style) */
.propart-btn-tb--pill {
  border-radius: var(--propart-tb-radius-pill);
  padding: 0.45rem 1.15rem;
}

.propart-btn-tb__icon {
  display: block;
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
  object-fit: contain;
}

.propart-btn-tb__icon[src$=".svg"] {
  filter: drop-shadow(0 1px 0 rgba(0, 0, 0, 0.12));
}

/* Muted / disabled: lavender slate (inactive redo, optional neutral pills) */
.propart-btn-tb:disabled,
.propart-btn-tb.propart-btn-tb--muted {
  cursor: not-allowed;
  transform: none;
  color: #fff;
  background: linear-gradient(
    135deg,
    var(--propart-tb-neutral-a) 0%,
    var(--propart-tb-neutral-b) 100%
  );
  box-shadow:
    0 2px 8px rgba(60, 48, 78, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

.propart-btn-tb:disabled:hover,
.propart-btn-tb.propart-btn-tb--muted:hover {
  background: linear-gradient(
    135deg,
    var(--propart-tb-neutral-b) 0%,
    var(--propart-tb-neutral-a) 100%
  );
  transform: none;
  box-shadow:
    0 2px 8px rgba(60, 48, 78, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.22);
}

/* Icon-only muted: charcoal glyph on neutral metal */
.propart-btn-tb--icon:disabled .propart-btn-tb__icon,
.propart-btn-tb--icon.propart-btn-tb--muted .propart-btn-tb__icon {
  filter: brightness(0) saturate(100%) invert(12%) sepia(8%) saturate(800%)
    hue-rotate(220deg) brightness(0.95) contrast(1.05);
  opacity: 0.92;
}

/* Flat neutral pill: light lavender panel + white label (secondary actions) */
.propart-btn-tb--pill.propart-btn-tb--muted:not(:disabled) {
  cursor: pointer;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.35);
  background: linear-gradient(180deg, #d4d2e4 0%, var(--propart-tb-neutral-flat) 100%);
  box-shadow:
    0 3px 10px rgba(75, 54, 102, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.5);
}

.propart-btn-tb--pill.propart-btn-tb--muted:not(:disabled):hover {
  background: linear-gradient(180deg, #e0deef 0%, #d4d2e4 100%);
  box-shadow:
    0 4px 12px rgba(75, 54, 102, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.55);
}

.propart-btn-tb--pill.propart-btn-tb--muted:not(:disabled) .propart-btn-tb__icon {
  filter: brightness(0) invert(1);
  opacity: 0.95;
}