/* ==========================================================================
   ACB Webview Generator - Design System & Styles
   ========================================================================== */

:root {
  /* Color Palette - Dark Mode (Default) */
  --bg-main: #0a0e17;
  --bg-card: rgba(17, 24, 39, 0.85);
  --bg-card-hover: rgba(22, 32, 50, 0.95);
  --bg-subtle: #141c2e;
  --bg-input: #0f172a;
  
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: #0070f3;
  --border-subtle: rgba(255, 255, 255, 0.04);
  
  --text-main: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  /* Brand & Accents */
  --primary: #0062ff;
  --primary-hover: #0050d4;
  --primary-glow: rgba(0, 98, 255, 0.25);
  
  --accent-cyan: #00d4b2;
  --accent-navy: #002b80;
  
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.12);
  --success-border: rgba(16, 185, 129, 0.3);
  
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.12);
  
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.12);
  --danger-border: rgba(239, 68, 68, 0.3);
  
  --info: #38bdf8;
  --info-bg: rgba(56, 189, 248, 0.12);
  
  /* Shadow & Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--border-color);
  --shadow-hover: 0 14px 40px -10px rgba(0, 98, 255, 0.25), 0 0 0 1px var(--primary);
  
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

/* Light Theme Overrides */
[data-theme="light"] {
  --bg-main: #f4f6fa;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-subtle: #f1f5f9;
  --bg-input: #f8fafc;
  
  --border-color: #e2e8f0;
  --border-focus: #0062ff;
  --border-subtle: #f1f5f9;
  
  --text-main: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  
  --shadow-card: 0 4px 20px -2px rgba(0, 0, 0, 0.06), 0 0 0 1px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 8px 30px -4px rgba(0, 98, 255, 0.18), 0 0 0 1px var(--primary);
}

/* Base Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.5;
  background-image: 
    radial-gradient(at 0% 0%, rgba(0, 98, 255, 0.08) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(0, 212, 178, 0.05) 0px, transparent 50%);
  background-attachment: fixed;
  transition: background-color 0.25s ease, color 0.25s ease;
}

/* Layout */
.app-container {
  max-width: 1380px;
  margin: 0 auto;
  padding: 24px 20px 40px;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 20px;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-logo {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, #0047cc, #00d4b2);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.25rem;
  color: #ffffff;
  letter-spacing: -0.5px;
  box-shadow: 0 4px 14px rgba(0, 98, 255, 0.35);
}

.brand-title {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.3px;
  color: var(--text-main);
}

.brand-subtitle {
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 2px;
}

.env-badge {
  background: var(--primary-glow);
  color: #38bdf8;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid rgba(56, 189, 248, 0.3);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  position: relative;
}

.btn-icon {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.2rem;
  transition: all 0.2s ease;
}

.btn-icon:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Nav Tabs */
.nav-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
}

.tab-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.tab-btn:hover {
  color: var(--text-main);
  border-color: rgba(255, 255, 255, 0.2);
}

.tab-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 16px var(--primary-glow);
}

/* Panes */
.tab-pane {
  display: block;
}

.tab-pane.hidden {
  display: none !important;
}

/* Grid Layout */
.grid-layout {
  display: grid;
  grid-template-columns: 460px 1fr;
  gap: 24px;
  align-items: start;
}

/* Cards */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(12px);
  overflow: hidden;
}

.card-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-title {
  font-size: 1.1rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-main);
}

.card-title .icon {
  font-size: 1.15rem;
}

/* Form */
.form-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input {
  width: 100%;
  padding: 11px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-textarea {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 0.825rem;
  line-height: 1.4;
  resize: vertical;
}

.form-textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.font-mono {
  font-family: var(--font-mono) !important;
}

/* Preset Chips */
.preset-chips {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 2px;
}

.chip-label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.preset-chip {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.75rem;
  padding: 3px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-family: var(--font-mono);
  transition: all 0.15s ease;
}

.preset-chip:hover {
  background: var(--primary-glow);
  color: var(--primary);
  border-color: var(--primary);
}

.btn-text-action {
  background: transparent;
  border: none;
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: color 0.15s ease;
}

.btn-text-action:hover {
  text-decoration: underline;
  color: #38bdf8;
}

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

/* Custom Checkbox */
.checkbox-container {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 0.825rem;
  color: var(--text-secondary);
  user-select: none;
  margin-top: 4px;
}

.checkbox-container input {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
  cursor: pointer;
}

/* Accordion */
.accordion {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  overflow: hidden;
}

.accordion-header {
  width: 100%;
  padding: 10px 14px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.accordion-header:hover {
  color: var(--text-main);
}

.accordion-icon {
  font-size: 0.75rem;
  transition: transform 0.2s ease;
}

.accordion.open .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  display: none;
  padding: 12px 14px 14px;
  border-top: 1px solid var(--border-color);
  flex-direction: column;
  gap: 10px;
}

.accordion.open .accordion-content {
  display: flex;
}

.accordion-desc {
  font-size: 0.785rem;
  color: var(--text-muted);
}

.key-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4px;
}

/* Buttons */
.btn-primary {
  background: linear-gradient(135deg, #0062ff, #0047cc);
  color: #ffffff;
  border: none;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 14px var(--primary-glow);
  transition: all 0.2s ease;
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0050d4, #0037a3);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 98, 255, 0.4);
}

.btn-large {
  padding: 14px 24px;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

.btn-success {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #ffffff;
  border: none;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
  transition: all 0.2s ease;
}

.btn-success:hover {
  background: linear-gradient(135deg, #059669, #047857);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s ease;
}

.btn-secondary:hover {
  border-color: var(--text-secondary);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.875rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.btn-outline:hover {
  background: var(--primary-glow);
}

.btn-danger-outline {
  background: transparent;
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: var(--danger);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-danger-outline:hover {
  background: var(--danger-bg);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}

/* Badges */
.badge-status {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
}

.badge-status.success {
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid var(--success-border);
}

.badge-status.info {
  background: var(--info-bg);
  color: var(--info);
}

.badge-tag {
  background: var(--bg-subtle);
  color: var(--text-secondary);
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
}

.badge-count {
  background: var(--bg-subtle);
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

/* Output Body */
.output-body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.result-block {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

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

.result-label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-main);
}

.btn-text-copy {
  background: transparent;
  border: none;
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
}

.btn-text-copy:hover {
  text-decoration: underline;
}

/* Highlight Block for URL */
.highlight-block {
  background: linear-gradient(145deg, rgba(0, 98, 255, 0.08), rgba(0, 212, 178, 0.04));
  border: 1px solid rgba(0, 98, 255, 0.3);
  padding: 16px;
  border-radius: var(--radius-md);
}

.url-display-box {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  word-break: break-all;
  color: #38bdf8;
  max-height: 110px;
  overflow-y: auto;
}

.action-buttons-group {
  display: flex;
  gap: 12px;
  margin-top: 10px;
}

.action-buttons-group .btn-primary,
.action-buttons-group .btn-success {
  flex: 1;
}

/* QR Code Section */
.qr-container-card {
  display: flex;
  gap: 20px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 18px;
  align-items: center;
}

.qr-canvas-wrapper {
  background: #ffffff;
  padding: 10px;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 140px;
  min-height: 140px;
}

.qrcode-box img,
.qrcode-box canvas {
  display: block;
}

.qr-info {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.qr-info h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-main);
}

.qr-info p {
  font-size: 0.825rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* API Tester */
.api-test-block {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  padding: 16px;
  border-radius: var(--radius-md);
}

.api-method-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 700;
}

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

.api-action-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 4px;
}

.api-status-text {
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.response-box {
  margin-top: 10px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 0.775rem;
  max-height: 150px;
  overflow-y: auto;
  color: var(--text-main);
}

.response-box.hidden {
  display: none;
}

/* Token & Code Boxes */
.token-box {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.775rem;
  word-break: break-all;
  max-height: 80px;
  overflow-y: auto;
  color: var(--text-secondary);
}

.code-box {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.775rem;
  max-height: 140px;
  overflow-y: auto;
  color: var(--text-main);
  line-height: 1.4;
}

/* History Card */
.history-card {
  margin-top: 24px;
}

/* Integration Tab */
#tab-integration > .card {
  margin-bottom: 24px;
}

#tab-integration .grid-layout {
  grid-template-columns: 1fr 1fr;
}

.history-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.history-list {
  padding: 18px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.empty-state {
  font-size: 0.875rem;
  color: var(--text-muted);
  text-align: center;
  padding: 24px 0;
}

.history-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.history-item:hover {
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateX(4px);
}

.history-item-meta {
  display: flex;
  align-items: center;
  gap: 14px;
}

.history-user {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-main);
}

.history-uuid {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.history-time {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.history-item-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Tab Verifier */
.verifier-card {
  max-width: 900px;
  margin: 0 auto;
}

.verifier-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.verify-results {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-top: 10px;
}

.verify-results.hidden {
  display: none;
}

.verify-banner {
  padding: 14px 18px;
  border-radius: var(--radius-md);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
}

.verify-banner.valid {
  background: var(--success-bg);
  border: 1px solid var(--success-border);
  color: var(--success);
}

.verify-banner.invalid {
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
  color: var(--danger);
}

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

.verifier-info-table {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.info-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.825rem;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-subtle);
}

.info-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.info-k {
  color: var(--text-muted);
}

.info-v {
  font-weight: 600;
  color: var(--text-main);
}

/* Footer */
.app-footer {
  text-align: center;
  padding-top: 30px;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.app-footer code {
  color: var(--primary);
  font-family: var(--font-mono);
}

/* Toast Notification */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 9999;
  pointer-events: none;
}

.toast {
  background: #1e293b;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 12px 18px;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  font-size: 0.875rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  pointer-events: auto;
  animation: slideInToast 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.toast.success {
  border-left: 4px solid var(--success);
}

.toast.error {
  border-left: 4px solid var(--danger);
}

@keyframes slideInToast {
  from {
    transform: translateY(20px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* Responsive */
@media (max-width: 1024px) {
  .grid-layout,
  #tab-integration .grid-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .app-container {
    padding: 16px 12px 30px;
  }
  
  .app-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
  
  .header-actions {
    align-self: flex-end;
  }
  
  .qr-container-card {
    flex-direction: column;
    text-align: center;
  }
  
  .action-buttons-group {
    flex-direction: column;
  }
  
  .history-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  
  .history-item-actions {
    align-self: flex-end;
  }
  
  .verify-details-grid {
    grid-template-columns: 1fr;
  }
}