/* ======================================
   CSS Variables & Theme
====================================== */
:root {
  --font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;

  /* Colors */
  --primary: #6366f1;
  --primary-hover: #818cf8;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;

  /* Borders */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
}

/* Dark Theme (default) */
.dark-theme {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: #334155;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

/* Light Theme */
.light-theme {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-tertiary: #e2e8f0;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border-color: #e2e8f0;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

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

html,
body {
  height: 100%;
}

body {
  font-family: var(--font-family);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow: hidden;
}

/* ======================================
   App Container
====================================== */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  max-height: 100vh;
}

/* ======================================
   Header
====================================== */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo i {
  font-size: 1.5rem;
  color: var(--primary);
}

.logo h1 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.logo .highlight {
  background: linear-gradient(135deg, var(--primary), #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-controls {
  display: flex;
  gap: 0.5rem;
}

/* ======================================
   Main Grid Layout
====================================== */
.main-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  padding: 1rem;
  flex: 1;
  min-height: 0; /* Important for nested scroll */
  overflow: hidden;
}

/* ======================================
   Panels
====================================== */
.panel {
  display: flex;
  flex-direction: column;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border-color);
  gap: 1rem;
}

.panel-header h2 {
  font-size: 0.875rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
}

.panel-header h2 i {
  color: var(--primary);
}

.panel-actions {
  display: flex;
  gap: 0.5rem;
}

.panel-footer {
  padding: 0.5rem 1rem;
  background: var(--bg-tertiary);
  border-top: 1px solid var(--border-color);
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ======================================
   Editor Container
====================================== */
.editor-container {
  flex: 1;
  min-height: 0;
  position: relative;
  overflow: hidden;
}

.editor-container textarea {
  width: 100%;
  height: 100%;
  padding: 1rem;
  border: none;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-family: "JetBrains Mono", "Fira Code", monospace;
  font-size: 0.875rem;
  line-height: 1.6;
  resize: none;
  outline: none;
}

.editor-container textarea::placeholder {
  color: var(--text-muted);
}

/* Output Code View */
.editor-container pre {
  height: 100%;
  margin: 0;
  padding: 1rem;
  overflow: auto;
  background: var(--bg-secondary) !important;
}

.editor-container pre code {
  font-family: "JetBrains Mono", "Fira Code", monospace;
  font-size: 0.875rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-all;
}

/* View Containers */
.view-container {
  display: none;
}

.view-container.active {
  display: block;
}

/* JSONEditor Container */
#jsoneditor {
  height: 100%;
}

/* Override JSONEditor colors for dark theme */
.dark-theme .jsoneditor {
  border: none !important;
}

.dark-theme .jsoneditor-menu {
  background-color: var(--bg-tertiary) !important;
  border-bottom: 1px solid var(--border-color) !important;
}

.dark-theme .jsoneditor-tree,
.dark-theme .jsoneditor-outer {
  background-color: var(--bg-secondary) !important;
  color: var(--text-primary) !important;
}

/* ======================================
   Tools Panel
====================================== */
.tools-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  width: 140px;
}

.tools-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.tools-group h3 {
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.swap-group {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

/* ======================================
   Buttons
====================================== */
.tool-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 0.75rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tool-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.tool-btn:active {
  transform: translateY(0);
}

.tool-btn.secondary {
  background: transparent;
  border-style: dashed;
}

.tool-btn.secondary:hover {
  background: var(--bg-tertiary);
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: none;
}

/* Icon Button */
.icon-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.icon-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

/* Text Button */
.text-btn {
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.text-btn:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

/* View Toggle Buttons */
.view-toggles {
  display: flex;
  background: var(--bg-secondary);
  border-radius: var(--radius-sm);
  padding: 2px;
  border: 1px solid var(--border-color);
}

.view-btn {
  padding: 0.375rem 0.75rem;
  border: none;
  border-radius: 4px;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.view-btn.active {
  background: var(--primary);
  color: white;
}

.view-btn:not(.active):hover {
  color: var(--text-primary);
}

/* ======================================
   Toast Notification
====================================== */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  padding: 0.75rem 1.5rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.875rem;
  font-weight: 500;
  box-shadow: var(--shadow);
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast.success {
  border-color: var(--success);
}
.toast.success i {
  color: var(--success);
}

.toast.error {
  border-color: var(--danger);
}
.toast.error i {
  color: var(--danger);
}

.toast.warning {
  border-color: var(--warning);
}
.toast.warning i {
  color: var(--warning);
}

/* ======================================
   Scrollbar Styling
====================================== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* ======================================
   Prism.js Theme Override for Light Mode
====================================== */
.light-theme code[class*="language-"],
.light-theme pre[class*="language-"] {
  color: #383a42 !important;
  text-shadow: none !important;
}

.light-theme .token.property,
.light-theme .token.string {
  color: #50a14f !important;
}

.light-theme .token.number,
.light-theme .token.boolean,
.light-theme .token.null {
  color: #c18401 !important;
}

.light-theme .token.punctuation {
  color: #383a42 !important;
}

/* ======================================
   Responsive
====================================== */
@media (max-width: 900px) {
  .main-grid {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr auto 1fr;
  }

  .tools-panel {
    flex-direction: row;
    flex-wrap: wrap;
    width: 100%;
    justify-content: center;
  }

  .tools-group {
    flex-direction: row;
    align-items: center;
  }

  .tools-group h3 {
    display: none;
  }

  .swap-group {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
    border-left: 1px solid var(--border-color);
    padding-left: 1rem;
  }
}