/*
 * Kroki Diagram System - Web3 Cyber-Editorial Theme
 * ==================================================
 * Production-grade diagram rendering with kroki.io
 * Hybrid approach: Server-side rendering + Client-side fallback
 *
 * Features:
 * - Kroki.io server-side diagram rendering (mermaid, plantuml, etc.)
 * - Client-side mermaid.js fallback on error
 * - Responsive design with accessibility support
 * - Loading states, error handling, and animations
 * - Dark/Light theme support
 * - Print-friendly output
 *
 * Author: Maximiliano A. Paredes
 * Date: 2026-05-01
 */

/* ========================================
   DESIGN TOKENS & THEME VARIABLES
   ======================================== */

:root {
  /* Diagram-specific tokens */
  --kroki-radius: 16px;
  --kroki-radius-inner: 12px;
  --kroki-spacing: 1.75rem;
  --kroki-spacing-caption: 1rem;
  --kroki-max-width: 1200px;
  --kroki-full-width: 100%;

  /* Color palette - Cyan/Magenta/Violet Web3 theme */
  --kroki-primary: var(--web3-cyan, #06b6d4);
  --kroki-primary-rgb: 6, 182, 212;
  --kroki-accent: #f472b6;
  --kroki-accent-rgb: 244, 114, 182;
  --kroki-violet: #a78bfa;
  --kroki-violet-rgb: 167, 139, 250;

  /* Surface & borders */
  --kroki-surface: rgba(17, 24, 39, 0.85);
  --kroki-surface-solid: #111827;
  --kroki-border: rgba(255, 255, 255, 0.06);
  --kroki-border-hover: rgba(6, 182, 212, 0.2);
  --kroki-border-glow: rgba(6, 182, 212, 0.15);

  /* Status colors */
  --kroki-success: #34d399;
  --kroki-success-rgb: 52, 211, 153;
  --kroki-warning: #fbbf24;
  --kroki-warning-rgb: 251, 191, 36;
  --kroki-error: #f87171;
  --kroki-error-rgb: 248, 113, 113;

  /* Typography */
  --kroki-font-caption: var(--font-serif, "Source Serif 4", Georgia, serif);
  --kroki-font-label: var(--font-sans, "Sora", system-ui, sans-serif);
  --kroki-size-caption: 0.875rem;
  --kroki-size-label: 0.7rem;
  --kroki-size-source: 0.75rem;

  /* Shadows */
  --kroki-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --kroki-shadow-glow: 0 0 30px rgba(6, 182, 212, 0.08);
  --kroki-shadow-hover: 0 8px 40px rgba(0, 0, 0, 0.4), 0 0 40px rgba(6, 182, 212, 0.12);

  /* Transitions */
  --kroki-transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light theme overrides */
[data-theme="light"] {
  --kroki-surface: rgba(255, 255, 255, 0.9);
  --kroki-surface-solid: #ffffff;
  --kroki-border: rgba(0, 0, 0, 0.08);
  --kroki-border-hover: rgba(6, 182, 212, 0.3);
  --kroki-border-glow: rgba(6, 182, 212, 0.2);
  --kroki-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --kroki-shadow-hover: 0 8px 40px rgba(0, 0, 0, 0.12), 0 0 40px rgba(6, 182, 212, 0.15);
  --kroki-caption-text: #4b5563;
  --kroki-label-bg: rgba(6, 182, 212, 0.1);
  --kroki-source-bg: rgba(0, 0, 0, 0.03);
  --kroki-source-text: #6b7280;
}

/* ========================================
   MAIN DIAGRAM CONTAINER
   ======================================== */

.kroki-diagram {
  display: flex;
  flex-direction: column;
  margin: 2.5rem 0;
  padding: var(--kroki-spacing);
  background: var(--kroki-surface);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--kroki-border);
  border-radius: var(--kroki-radius);
  box-shadow: var(--kroki-shadow);
  max-width: var(--kroki-max-width);
  width: var(--kroki-full-width);
  margin-left: auto;
  margin-right: auto;
  position: relative;
  overflow: hidden;
  transition: all var(--kroki-transition);
}

/* Subtle gradient accent at top */
.kroki-diagram::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg,
    var(--kroki-primary) 0%,
    var(--kroki-accent) 50%,
    var(--kroki-violet) 100%
  );
  opacity: 0.8;
  border-radius: var(--kroki-radius) var(--kroki-radius) 0 0;
}

/* Hover state */
.kroki-diagram:hover {
  border-color: var(--kroki-border-hover);
  box-shadow: var(--kroki-shadow-hover);
  transform: translateY(-2px);
}

/* ========================================
   DIAGRAM TYPE LABEL
   ======================================== */

.kroki-diagram::after {
  content: attr(data-diagram-type);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.85rem;
  background: var(--kroki-label-bg, rgba(6, 182, 212, 0.08));
  border: 1px solid rgba(6, 182, 212, 0.15);
  border-radius: 9999px;
  font-size: var(--kroki-size-label);
  font-family: var(--kroki-font-label);
  font-weight: 500;
  color: var(--kroki-primary);
  text-transform: lowercase;
  letter-spacing: 0.04em;
  margin-bottom: 1.25rem;
  align-self: flex-start;
  transition: all var(--kroki-transition);
}

.kroki-diagram:hover::after {
  background: rgba(6, 182, 212, 0.15);
  border-color: rgba(6, 182, 212, 0.3);
}

/* Diagram type-specific icons */
.kroki-diagram[data-diagram-type="flowchart"]::before,
.kroki-diagram[data-diagram-type="graph"]::before {
  content: "⬡";
  margin-right: 0.2rem;
}

.kroki-diagram[data-diagram-type="sequenceDiagram"]::before {
  content: "⇅";
  margin-right: 0.2rem;
}

.kroki-diagram[data-diagram-type="stateDiagram"]::before {
  content: "◈";
  margin-right: 0.2rem;
}

.kroki-diagram[data-diagram-type="pie"]::before {
  content: "◉";
  margin-right: 0.2rem;
}

.kroki-diagram[data-diagram-type="gantt"]::before {
  content: "▤";
  margin-right: 0.2rem;
}

.kroki-diagram[data-diagram-type="timeline"]::before {
  content: "▥";
  margin-right: 0.2rem;
}

.kroki-diagram[data-diagram-type="classDiagram"]::before {
  content: "⊞";
  margin-right: 0.2rem;
}

.kroki-diagram[data-diagram-type="erDiagram"]::before {
  content: "⬢";
  margin-right: 0.2rem;
}

/* ========================================
   SVG CONTAINER (dynamic SVG injection)
   ======================================== */

.kroki-svg-container {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  min-height: 100px;
  position: relative;
  z-index: 1;
  overflow-x: auto;
}

/* Empty container placeholder */
.kroki-svg-container:empty::after {
  content: 'Cargando diagrama...';
  display: block;
  text-align: center;
  padding: 2rem 1rem;
  color: var(--kroki-caption-text, #94a3b8);
  font-size: var(--kroki-size-label, 0.8rem);
  font-family: var(--kroki-font-label, system-ui, sans-serif);
  letter-spacing: 0.02em;
}

/* SVG injected by JavaScript - force responsive sizing */
.kroki-svg-container svg {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  /* Override any inline width/height attributes from Kroki */
  width: 100% !important;
  height: auto !important;
}

/* ========================================
   DIAGRAM TEXT STYLES - DARK THEME (DEFAULT)
   High contrast text on dark backgrounds
   ======================================== */

/* Force high contrast for diagram text on dark backgrounds */
.kroki-svg-container svg text {
  fill: #f1f5f9 !important;
}

.kroki-svg-container svg .node-label,
.kroki-svg-container svg .edgeLabel,
.kroki-svg-container svg .mermaid-label,
.kroki-svg-container svg [class*="label"] text {
  fill: #f1f5f9 !important;
}

/* Ensure diagram strokes are visible */
.kroki-svg-container svg rect,
.kroki-svg-container svg polygon,
.kroki-svg-container svg path:not(.node .marker-path) {
  stroke: #94a3b8 !important;
}

/* Mermaid v11 specific class names for inline diagrams */
.kroki-svg-container svg .node line,
.kroki-svg-container svg .node path,
.kroki-svg-container svg .edge path,
.kroki-svg-container svg .edge line {
  stroke: #94a3b8 !important;
}

.kroki-svg-container svg .edgeLabel text,
.kroki-svg-container svg .cluster-label text {
  fill: #f1f5f9 !important;
  font-weight: 600 !important;
}

/* Ensure arrows are visible */
.kroki-svg-container svg marker path {
  fill: #cbd5e1 !important;
  stroke: #cbd5e1 !important;
}

/* Node fills with subtle opacity for visibility */
.kroki-svg-container svg .node rect[fill],
.kroki-svg-container svg .node polygon[fill] {
  fill-opacity: 0.15 !important;
}

/* ========================================
   DIAGRAM TEXT STYLES - LIGHT THEME
   Dark text on light backgrounds for WCAG AA compliance
   Ratio: #1f2937 on #ffffff = 14.2:1 (AAA)
   ======================================== */

[data-theme="light"] .kroki-svg-container svg text {
  fill: #1f2937 !important;
}

[data-theme="light"] .kroki-svg-container svg .node-label,
[data-theme="light"] .kroki-svg-container svg .edgeLabel,
[data-theme="light"] .kroki-svg-container svg .mermaid-label,
[data-theme="light"] .kroki-svg-container svg [class*="label"] text {
  fill: #1f2937 !important;
}

[data-theme="light"] .kroki-svg-container svg .edgeLabel text,
[data-theme="light"] .kroki-svg-container svg .cluster-label text {
  fill: #1f2937 !important;
  font-weight: 600 !important;
}

/* Dark strokes for visibility on light backgrounds */
[data-theme="light"] .kroki-svg-container svg rect,
[data-theme="light"] .kroki-svg-container svg polygon,
[data-theme="light"] .kroki-svg-container svg path:not(.node .marker-path) {
  stroke: #4b5563 !important;
}

[data-theme="light"] .kroki-svg-container svg .node line,
[data-theme="light"] .kroki-svg-container svg .node path,
[data-theme="light"] .kroki-svg-container svg .edge path,
[data-theme="light"] .kroki-svg-container svg .edge line {
  stroke: #4b5563 !important;
}

/* Dark arrows for light theme */
[data-theme="light"] .kroki-svg-container svg marker path {
  fill: #374151 !important;
  stroke: #374151 !important;
}

/* Slightly higher opacity for node fills in light theme */
[data-theme="light"] .kroki-svg-container svg .node rect[fill],
[data-theme="light"] .kroki-svg-container svg .node polygon[fill] {
  fill-opacity: 0.2 !important;
}

/* Fallback render container */
.kroki-fallback-render {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  min-height: 80px;
}

.kroki-fallback-render svg {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  width: 100% !important;
}

/* ========================================
   DIAGRAM IMAGE (Kroki-rendered)
   ======================================== */

.kroki-image {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--kroki-radius-inner);
  transition: all var(--kroki-transition);
  position: relative;
  z-index: 1;
}

.kroki-image:hover {
  filter: brightness(1.05) contrast(1.02);
}

/* ========================================
   LOADING STATE
   ======================================== */

.kroki-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 2rem;
  gap: 1rem;
  position: relative;
  z-index: 1;
}

.kroki-loading-spinner {
  width: 44px;
  height: 44px;
  position: relative;
}

.kroki-loading-spinner::before,
.kroki-loading-spinner::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 3px solid transparent;
}

.kroki-loading-spinner::before {
  border-top-color: var(--kroki-primary);
  animation: kroki-spin 0.9s cubic-bezier(0.6, 0, 0.4, 1) infinite;
}

.kroki-loading-spinner::after {
  border-bottom-color: var(--kroki-accent);
  animation: kroki-spin 0.9s cubic-bezier(0.6, 0, 0.4, 1) infinite reverse;
  inset: 5px;
}

@keyframes kroki-spin {
  to { transform: rotate(360deg); }
}

.kroki-loading-text {
  font-size: var(--kroki-size-source);
  font-family: var(--kroki-font-label);
  color: var(--kroki-caption-text, #94a3b8);
  letter-spacing: 0.02em;
}

/* ========================================
   CAPTION
   ======================================== */

.kroki-figure-caption {
  margin-top: var(--kroki-spacing-caption);
  padding-top: 0.85rem;
  border-top: 1px solid var(--kroki-border);
  font-size: var(--kroki-size-caption);
  font-family: var(--kroki-font-caption);
  color: var(--kroki-caption-text, #94a3b8);
  text-align: center;
  font-style: italic;
  line-height: 1.6;
  max-width: 100%;
}

/* ========================================
   SOURCE CODE ACCORDION
   ======================================== */

.kroki-source-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  margin-top: 0.75rem;
  background: var(--kroki-source-bg, rgba(0, 0, 0, 0.04));
  border: 1px solid var(--kroki-border);
  border-radius: 8px;
  color: var(--kroki-source-text, #6b7280);
  font-size: var(--kroki-size-source);
  font-family: var(--kroki-font-label);
  cursor: pointer;
  transition: all var(--kroki-transition);
  align-self: center;
}

.kroki-source-toggle:hover {
  background: rgba(6, 182, 212, 0.08);
  border-color: rgba(6, 182, 212, 0.2);
  color: var(--kroki-primary);
}

.kroki-source-toggle-icon {
  transition: transform var(--kroki-transition);
  font-size: 0.7rem;
}

.kroki-source-toggle[aria-expanded="true"] .kroki-source-toggle-icon {
  transform: rotate(180deg);
}

.kroki-source-code {
  display: none;
  margin-top: 0.75rem;
  padding: 1rem;
  background: var(--kroki-source-bg, rgba(0, 0, 0, 0.06));
  border: 1px solid var(--kroki-border);
  border-radius: 8px;
  font-family: var(--font-mono, "JetBrains Mono", "Fira Code", monospace);
  font-size: 0.75rem;
  color: var(--kroki-source-text, #94a3b8);
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.5;
  max-height: 300px;
  overflow-y: auto;
}

.kroki-source-code.visible {
  display: block;
  animation: kroki-fade-in 0.2s ease-out;
}

@keyframes kroki-fade-in {
  from { opacity: 0; transform: translateY(-5px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========================================
   ERROR STATE
   ======================================== */

.kroki-diagram.kroki-error {
  border-color: rgba(var(--kroki-error-rgb), 0.3);
}

.kroki-diagram.kroki-error::before {
  background: linear-gradient(90deg,
    var(--kroki-error) 0%,
    var(--kroki-warning) 100%
  );
}

.kroki-diagram.kroki-error .kroki-image {
  opacity: 0.25;
  filter: grayscale(100%) blur(1px);
  pointer-events: none;
}

/* Error fallback message */
.kroki-error-message {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  gap: 0.75rem;
  text-align: center;
}

.kroki-diagram.kroki-error .kroki-error-message {
  display: flex;
}

.kroki-error-icon {
  font-size: 2rem;
  margin-bottom: 0.25rem;
}

.kroki-error-text {
  font-size: var(--kroki-size-caption);
  color: var(--kroki-error);
  font-family: var(--kroki-font-label);
}

.kroki-error-hint {
  font-size: var(--kroki-size-source);
  color: var(--kroki-caption-text, #94a3b8);
  max-width: 400px;
}

/* Retry button */
.kroki-retry-btn {
  padding: 0.5rem 1.25rem;
  background: rgba(var(--kroki-error-rgb), 0.1);
  border: 1px solid rgba(var(--kroki-error-rgb), 0.3);
  border-radius: 8px;
  color: var(--kroki-error);
  font-family: var(--kroki-font-label);
  font-size: var(--kroki-size-source);
  cursor: pointer;
  transition: all var(--kroki-transition);
}

.kroki-retry-btn:hover {
  background: rgba(var(--kroki-error-rgb), 0.2);
  border-color: rgba(var(--kroki-error-rgb), 0.5);
}

/* ========================================
   FALLBACK RENDER (client-side mermaid)
   ======================================== */

.kroki-fallback-render {
  display: none;
  width: 100%;
  overflow-x: auto;
  padding: 0.5rem 0;
}

.kroki-fallback-render.active {
  display: block;
  animation: kroki-fade-in 0.3s ease-out;
}

.kroki-fallback-render svg {
  max-width: 100%;
  height: auto;
}

/* Force high contrast for fallback render diagrams */
.kroki-fallback-render svg text {
  fill: #f1f5f9 !important;
}

.kroki-fallback-render svg .node-label,
.kroki-fallback-render svg .edgeLabel,
.kroki-fallback-render svg .mermaid-label,
.kroki-fallback-render svg [class*="label"] text {
  fill: #f1f5f9 !important;
}

.kroki-fallback-render svg rect,
.kroki-fallback-render svg polygon,
.kroki-fallback-render svg path:not(.node .marker-path) {
  stroke: #94a3b8 !important;
}

.kroki-fallback-render svg marker path {
  fill: #cbd5e1 !important;
  stroke: #cbd5e1 !important;
}

/* Mermaid v11 specific class names */
.kroki-fallback-render svg .node line,
.kroki-fallback-render svg .node path,
.kroki-fallback-render svg .edge path,
.kroki-fallback-render svg .edge line {
  stroke: #94a3b8 !important;
}

.kroki-fallback-render svg .edgeLabel text,
.kroki-fallback-render svg .cluster-label text {
  fill: #f1f5f9 !important;
  font-weight: 600 !important;
}

/* Indicate fallback rendered diagrams */
.kroki-fallback-render[data-fallback="true"] {
  position: relative;
}

.kroki-fallback-render[data-fallback="true"]::after {
  content: "Rendered locally (fallback)";
  display: block;
  padding: 0.35rem 0.75rem;
  margin-top: 0.5rem;
  background: rgba(var(--kroki-warning-rgb), 0.1);
  border: 1px solid rgba(var(--kroki-warning-rgb), 0.2);
  border-radius: 6px;
  color: var(--kroki-warning);
  font-size: 0.7rem;
  font-family: var(--kroki-font-label);
  text-align: center;
  align-self: flex-start;
}

/* ========================================
   SIZE VARIANTS
   ======================================== */

/* Compact - for inline/small diagrams */
.kroki-diagram.kroki-compact {
  padding: 1rem;
  margin: 1.5rem 0;
}

.kroki-diagram.kroki-compact::after {
  margin-bottom: 0.75rem;
}

/* Wide - for full-width diagrams */
.kroki-diagram.kroki-wide {
  max-width: 100%;
  padding: 2rem;
}

/* Centered (default) - with max-width constraint */
.kroki-diagram:not(.kroki-wide):not(.kroki-compact) {
  max-width: 900px;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: calc(var(--bp-md) - 1px)) {
  :root {
    --kroki-spacing: 1.25rem;
    --kroki-radius: 12px;
    --kroki-radius-inner: 8px;
  }

  .kroki-diagram {
    margin: 2rem 0.5rem;
    padding: var(--kroki-spacing);
  }

  .kroki-diagram.kroki-wide {
    margin: 2rem 0.25rem;
  }

  .kroki-image {
    max-width: 98%;
  }

  .kroki-figure-caption {
    font-size: 0.8rem;
    padding: 0 0.5rem;
  }
}

@media (max-width: 480px) {
  .kroki-diagram {
    padding: 0.85rem;
    margin: 1.5rem 0.25rem;
  }

  .kroki-loading {
    padding: 2rem 1rem;
  }

  .kroki-loading-spinner {
    width: 36px;
    height: 36px;
  }
}

/* ========================================
   ACCESSIBILITY
   ======================================== */

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .kroki-diagram,
  .kroki-image,
  .kroki-source-toggle,
  .kroki-source-toggle-icon {
    transition: none;
  }

  .kroki-diagram:hover {
    transform: none;
  }

  .kroki-loading-spinner::before,
  .kroki-loading-spinner::after {
    animation: none;
    border-top-color: var(--kroki-primary);
    border-bottom-color: var(--kroki-accent);
    animation: kroki-pulse 1.5s ease-in-out infinite;
  }

  @keyframes kroki-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  .kroki-diagram {
    border-width: 2px;
    background: var(--kroki-surface-solid);
  }

  .kroki-diagram::before {
    opacity: 1;
  }

  .kroki-diagram::after {
    border-width: 1px;
  }

  .kroki-figure-caption {
    color: var(--kroki-text-primary, #e4e4e7);
  }
}

/* Focus visible for keyboard navigation */
.kroki-source-toggle:focus-visible,
.kroki-retry-btn:focus-visible {
  outline: 2px solid var(--kroki-primary);
  outline-offset: 2px;
}

/* ========================================
   PRINT STYLES
   ======================================== */

@media print {
  .kroki-diagram {
    break-inside: avoid;
    background: none;
    border: 1px solid #ccc;
    box-shadow: none;
    margin: 1rem 0;
    padding: 0.5rem;
  }

  .kroki-diagram::before,
  .kroki-diagram::after {
    display: none;
  }

  .kroki-source-toggle,
  .kroki-source-code,
  .kroki-loading,
  .kroki-error-message {
    display: none !important;
  }

  .kroki-diagram.kroki-error {
    display: none;
  }

  .kroki-image {
    max-width: 100%;
    filter: none;
  }

  .kroki-figure-caption {
    border-top-color: #ccc;
    color: #333;
  }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

/* Visually hidden (for screen readers) */
.kroki-visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ========================================
   ANIMATIONS
   ======================================== */

/* Staggered entrance for diagrams on page load */
.kroki-diagram {
  animation: kroki-diagram-entrance 0.5s ease-out both;
}

.kroki-diagram:nth-child(1) { animation-delay: 0.05s; }
.kroki-diagram:nth-child(2) { animation-delay: 0.1s; }
.kroki-diagram:nth-child(3) { animation-delay: 0.15s; }
.kroki-diagram:nth-child(4) { animation-delay: 0.2s; }
.kroki-diagram:nth-child(5) { animation-delay: 0.25s; }

@keyframes kroki-diagram-entrance {
  from {
    opacity: 0;
    transform: translateY(15px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========================================
   ZOOM CONTROLS
   ======================================== */

.kroki-zoom-controls {
  position: absolute;
  top: 8px;
  right: 8px;
  display: flex;
  gap: 4px;
  z-index: 10;
  background: rgba(17, 24, 39, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  opacity: 1;
  transition: opacity 0.2s ease, transform 0.2s ease;
  transform: translateY(0);
}

/* Subtle fade when not interacting */
.kroki-svg-container:not(:hover) .kroki-zoom-controls {
  opacity: 0.7;
}

.kroki-zoom-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  color: #cbd5e1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: system-ui, -apple-system, sans-serif;
}

.kroki-zoom-btn:hover {
  background: rgba(6, 182, 212, 0.15);
  border-color: rgba(6, 182, 212, 0.3);
  color: #22d3ee;
}

.kroki-zoom-btn:active {
  background: rgba(6, 182, 212, 0.25);
  transform: scale(0.95);
}

.kroki-zoom-btn:focus-visible {
  outline: 2px solid var(--kroki-primary, #06b6d4);
  outline-offset: 2px;
}

/* Light theme adjustments */
[data-theme="light"] .kroki-zoom-controls {
  background: rgba(255, 255, 255, 0.9);
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .kroki-zoom-btn {
  color: #475569;
}

[data-theme="light"] .kroki-zoom-btn:hover {
  background: rgba(6, 182, 212, 0.1);
  color: #0891b2;
}

/* Zoom wrapper ensures proper overflow handling */
.kroki-zoom-wrapper {
  overflow: hidden;
  border-radius: var(--kroki-radius-inner, 12px);
  position: relative;
}

/* SVG within zoom wrapper */
.kroki-zoom-wrapper svg {
  display: block;
  width: 100%;
  height: auto;
}

/* Mobile: always show zoom controls */
@media (max-width: 768px) {
  .kroki-zoom-controls {
    opacity: 1;
  }
  
  .kroki-zoom-btn {
    width: 28px;
    height: 28px;
    font-size: 14px;
  }
}

/* ========================================
   DIAGRAM POPUP MODAL
   ======================================== */

.kroki-popup-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.kroki-popup-visible {
  opacity: 1;
  visibility: visible;
}

.kroki-popup-container {
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 95vw;
  max-height: 90vh;
  background: var(--kroki-surface, rgba(17, 24, 39, 0.95));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--kroki-border, rgba(255, 255, 255, 0.08));
  border-radius: 16px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5), 0 0 60px rgba(6, 182, 212, 0.08);
  overflow: hidden;
  transform: scale(0.92) translateY(20px);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.kroki-popup-visible .kroki-popup-container {
  transform: scale(1) translateY(0);
}

/* Header */
.kroki-popup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--kroki-border, rgba(255, 255, 255, 0.06));
  flex-shrink: 0;
}

.kroki-popup-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: #e2e8f0;
  font-family: var(--kroki-font-label, "Sora", system-ui, sans-serif);
  font-size: 0.85rem;
  font-weight: 600;
}

.kroki-popup-icon {
  font-size: 1rem;
}

.kroki-popup-label {
  text-transform: capitalize;
}

.kroki-popup-actions {
  display: flex;
  gap: 0.25rem;
}

.kroki-popup-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  color: #94a3b8;
  cursor: pointer;
  transition: all 0.15s ease;
}

.kroki-popup-btn:hover {
  background: rgba(6, 182, 212, 0.15);
  border-color: rgba(6, 182, 212, 0.3);
  color: #22d3ee;
}

.kroki-popup-btn:active {
  background: rgba(6, 182, 212, 0.25);
  transform: scale(0.95);
}

.kroki-popup-btn:focus-visible {
  outline: 2px solid var(--kroki-primary, #06b6d4);
  outline-offset: 2px;
}

/* Body - Increased padding for better breathing room */
.kroki-popup-body {
  flex: 1;
  overflow: auto;
  position: relative;
  display: flex;
  padding: 1.5rem;
  align-items: center;
  justify-content: center;
  min-height: 0;
  background: rgba(0, 0, 0, 0.15);
}

.kroki-popup-svg-wrapper {
  width: 100%;
  height: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: default;
}

.kroki-popup-svg-container {
  position: relative;
  max-width: 100%;
  max-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.kroki-popup-svg-container svg {
  display: block;
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  object-fit: contain;
}

/* Ensure SVG text has high contrast - force white text on dark backgrounds */
.kroki-popup-svg-container svg text {
  fill: #f1f5f9 !important;
}

.kroki-popup-svg-container svg .node-label,
.kroki-popup-svg-container svg .edgeLabel,
.kroki-popup-svg-container svg .mermaid-label,
.kroki-popup-svg-container svg [class*="label"] text {
  fill: #f1f5f9 !important;
}

/* Ensure box/stroke elements have proper contrast */
.kroki-popup-svg-container svg rect,
.kroki-popup-svg-container svg polygon,
.kroki-popup-svg-container svg path:not(.node .marker-path) {
  stroke: #94a3b8 !important;
}

/* Mermaid v11 specific class names for popup */
.kroki-popup-svg-container svg .node line,
.kroki-popup-svg-container svg .node path,
.kroki-popup-svg-container svg .edge path,
.kroki-popup-svg-container svg .edge line {
  stroke: #94a3b8 !important;
}

.kroki-popup-svg-container svg .edgeLabel text,
.kroki-popup-svg-container svg .cluster-label text {
  fill: #f1f5f9 !important;
  font-weight: 600 !important;
}

/* Force bright colors for diagram elements on dark background */
.kroki-popup-svg-container svg .node rect[fill],
.kroki-popup-svg-container svg .node polygon[fill] {
  fill-opacity: 0.15 !important;
}

/* Ensure arrows and lines are visible */
.kroki-popup-svg-container svg marker path {
  fill: #cbd5e1 !important;
  stroke: #cbd5e1 !important;
}

/* Light theme */
[data-theme="light"] .kroki-popup-overlay {
  background: rgba(255, 255, 255, 0.85);
}

[data-theme="light"] .kroki-popup-container {
  background: rgba(255, 255, 255, 0.98);
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.15), 0 0 60px rgba(6, 182, 212, 0.1);
}

[data-theme="light"] .kroki-popup-header {
  background: rgba(0, 0, 0, 0.04);
  border-bottom-color: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .kroki-popup-title {
  color: #334155;
}

[data-theme="light"] .kroki-popup-btn {
  color: #64748b;
}

[data-theme="light"] .kroki-popup-btn:hover {
  background: rgba(6, 182, 212, 0.1);
  color: #0891b2;
}

[data-theme="light"] .kroki-popup-body {
  background: rgba(0, 0, 0, 0.02);
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .kroki-popup-overlay {
    padding: 0.5rem;
  }

  .kroki-popup-container {
    max-width: 100vw;
    max-height: 100vh;
    border-radius: 0;
  }

  .kroki-popup-header {
    padding: 0.6rem 0.75rem;
  }

  .kroki-popup-title {
    font-size: 0.8rem;
  }

  .kroki-popup-btn {
    width: 32px;
    height: 32px;
  }

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

  /* Increased padding for popup body on mobile */
  .kroki-popup-body {
    padding: 1rem;
  }

  .kroki-popup-svg-container {
    padding: 0.75rem;
  }
}