/**
 * Greek Braille LabelMaker - Styles
 * Copyright (c) 2025 Bouronikos Christos (chrisbouronikos@gmail.com)
 * Licensed under the Apache License, Version 2.0.
 */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");

:root {
  --bg: #f8f9fa;
  --surface: #ffffff;
  --surface-2: #f1f3f5;
  --border: #e0e0e0;
  --text: #1a1a1a;
  --text-muted: #666;
  --accent: #2563eb;
  --accent-soft: rgba(37, 99, 235, 0.1);
  --success: #16a34a;
  --warning: #d97706;
  --radius: 12px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.04);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

.app {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px 16px;
}

/* Header */
.header {
  text-align: center;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.app-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
  color: var(--text);
}

.byline {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.byline a {
  color: var(--accent);
  text-decoration: none;
}

.byline a:hover {
  text-decoration: underline;
}

.subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

/* Layout */
.layout {
  display: grid;
  gap: 20px;
  grid-template-columns: 300px 1fr 2fr;
  align-items: start;
}

@media (max-width: 1100px) {
  .layout {
    grid-template-columns: 1fr 1fr;
  }

  .geometry-panel {
    grid-column: 1 / -1;
  }
}

@media (max-width: 700px) {
  .layout {
    grid-template-columns: 1fr;
  }
}

/* Panels */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}

.panel-head {
  margin-bottom: 16px;
}

.panel h2 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text);
}

.panel h3 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.panel p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Form Elements */
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.field-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.field-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, 1fr);
}

input,
select,
textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.9rem;
  font-family: var(--font);
  color: var(--text);
  width: 100%;
  transition: border-color 0.2s, box-shadow 0.2s;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

textarea {
  min-height: 200px;
  resize: vertical;
  background: var(--surface-2);
}

/* Buttons */
button {
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: 8px;
  padding: 10px 16px;
  cursor: pointer;
  transition: all 0.2s;
}

.primary {
  background: var(--accent);
  color: white;
  border: none;
}

.primary:hover {
  background: #1d4ed8;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.secondary:hover {
  background: var(--accent-soft);
}

.ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.ghost:hover {
  background: var(--surface-2);
  color: var(--text);
}

/* Preset Section */
.preset-row {
  display: flex;
  gap: 10px;
  align-items: end;
  margin-bottom: 12px;
}

.preset-row .field {
  flex: 1;
}

.preset-note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 16px;
  padding: 12px;
  background: var(--surface-2);
  border-radius: 8px;
  border-left: 3px solid var(--accent);
}

.preset-manager {
  margin-top: 16px;
  padding: 16px;
  background: var(--surface-2);
  border-radius: 8px;
}

.preset-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: end;
  margin-bottom: 12px;
}

.preset-actions .field {
  flex: 1;
  min-width: 150px;
}

.preset-editor {
  display: grid;
  gap: 10px;
}

.preset-status {
  font-size: 0.75rem;
  color: var(--success);
  margin-top: 8px;
  min-height: 1em;
}

/* Standards Block */
.standards {
  margin-top: 16px;
  padding: 12px;
  background: var(--surface-2);
  border-radius: 8px;
}

.standards-grid {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(3, 1fr);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.standards-grid strong {
  display: block;
  color: var(--text);
  font-size: 0.9rem;
}

/* Marker */
.marker-block {
  margin-top: 16px;
  padding: 12px;
  background: var(--surface-2);
  border-radius: 8px;
}

.marker-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 6px;
}

.check-field {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text);
}

.check-field input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

/* Delta Badges */
.delta-badge {
  font-size: 0.65rem;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--accent-soft);
  color: var(--accent);
  opacity: 0;
  transition: opacity 0.2s;
}

.delta-badge.active {
  opacity: 1;
}

.auto-expanded input {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

/* Warnings */
.warnings {
  margin-top: 16px;
  padding: 14px 16px;
  background: rgba(217, 119, 6, 0.08);
  border: 1px solid rgba(217, 119, 6, 0.25);
  border-radius: 8px;
  font-size: 0.85rem;
  color: var(--warning);
}

.warnings ul {
  margin: 0;
  padding-left: 20px;
}

.warnings.updated {
  animation: pulse 0.5s ease;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.7;
  }
}

/* Stats */
.stats {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, 1fr);
  margin-top: 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.stats strong {
  display: block;
  font-size: 1.1rem;
  color: var(--text);
  font-weight: 600;
}

/* Reference */
.reference-card {
  margin-top: 16px;
  padding: 16px;
  background: var(--surface-2);
  border-radius: 8px;
}

.reference-head {
  margin-bottom: 12px;
}

.reference-list {
  max-height: 180px;
  overflow-y: auto;
}

.reference-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 10px;
  background: var(--surface);
  border-radius: 6px;
  margin-bottom: 6px;
  border: 1px solid var(--border);
}

.reference-word {
  font-size: 0.9rem;
  color: var(--text);
}

.reference-cells {
  font-family: "SF Mono", Monaco, monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.reference-break {
  height: 1px;
  background: var(--border);
  margin: 8px 0;
}

.reference-empty {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  padding: 20px;
}

/* Action Row */
.action-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: end;
}

.action-row .field {
  flex: 0 0 auto;
}

/* Previews */
.preview-head {
  margin-top: 20px;
  margin-bottom: 12px;
}

.preview-controls {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.preview-tools {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr 1fr;
  margin-bottom: 16px;
}

.range-field input[type="range"] {
  accent-color: var(--accent);
  height: 6px;
}

.preview-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr 1fr;
}

.preview-card {
  background: var(--surface-2);
  border-radius: 8px;
  padding: 16px;
  border: 1px solid var(--border);
}

.preview-card h3 {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.preview-card canvas {
  width: 100%;
  height: auto;
  border-radius: 6px;
  background: #fefefe;
  border: 1px solid var(--border);
}

.hidden {
  display: none;
}

/* Footer */
.footnote {
  text-align: center;
  margin-top: 40px;
  padding: 20px;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}

.footnote a {
  color: var(--accent);
  text-decoration: none;
  margin: 0 8px;
}

.footnote a:hover {
  text-decoration: underline;
}

/* Note */
.note {
  font-size: 0.8rem;
  color: var(--accent);
  padding: 8px 12px;
  background: var(--accent-soft);
  border-radius: 6px;
}

/* Panel foot */
.panel-foot {
  display: grid;
  gap: 12px;
  margin-top: 16px;
}