:root {
  --primary-color: #001bb7;
  --primary-hover: #2037b9;
  --secondary-color: #f8fafc;
  --accent-color: #ff8040;
  --text-primary: #334155;
  --text-secondary: #64748b;
  --success-color: #22c55e;
  --error-color: #ef4444;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg:
    0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --bg-light: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
  --bg-dark: #0f172a;
  --card-light: #ffffff;
  --card-dark: #1e293b;
  --text-dark: #f8fafc;
}

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

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu,
    Cantarell, sans-serif;
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
}

body.dark-mode {
  background: var(--bg-dark); 
  color: var(--text-dark);
}

body.dark-mode .panel,
body.dark-mode .code-input,
body.dark-mode .output-area,
body.dark-mode .panel-header {
  background-color: var(--card-dark);
  color: var(--text-dark);
  border-color: #334155;
}

body.dark-mode .code-input {
  background: #1e293b;
}

body.dark-mode .panel-title {
  color: var(--text-dark);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.page-header {
  text-align: center;
  margin-bottom: 30px;
}

.page-header h1 {
  color: var(--primary-color);
  font-size: 2.5rem;
}

.main-navbar {
  position: fixed;
  top: 0;
  width: 100%;
  height: 60px;
  background: var(--card-light);
  display: flex;
  align-items: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  z-index: 1000;
}

body.dark-mode .main-navbar {
  background: var(--card-dark);
}

.nav-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  padding: 0 20px;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
  text-decoration: none;
}

.mode-toggle {
  cursor: pointer;
  font-size: 1.2rem;
  color: var(--primary-color);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px;
  padding-top: 4rem;
}

.header {
  text-align: center;
  margin-bottom: 32px;
  padding: 14px 0;
}
.header h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 8px;
  text-shadow: var(--shadow-sm);
}
.header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.playground {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

.panel {
  background: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: var(--transition);
}
.panel:hover {
  box-shadow:
    0 20px 25px -5px rgb(0 0 0 / 0.1),
    0 8px 10px -6px rgb(0 0 0 / 0.1);
}
.panel-header {
  background: var(--secondary-color);
  padding: 16px 20px;
  border-bottom: 2px solid var(--accent-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.panel-title {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.panel-title::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary-color);
}

.code-editor {
  position: relative;
  height: 400px;
}
.code-input {
  width: 100%;
  height: 100%;
  border: none;
  outline: none;
  resize: none;
  padding: 20px;
  font-family:
    "SF Mono", Monaco, Inconsolata, "Roboto Mono", Consolas, monospace;
  font-size: 14px;
  line-height: 1.5;
  background: #fafbfc;
  color: var(--text-primary);
  transition: var(--transition);
}
.code-input:focus {
  background: #ffffff;
  box-shadow: inset 0 0 0 2px var(--primary-color);
  border-radius: var(--border-radius);
}

.output-panel {
  height: 400px;
  display: flex;
  flex-direction: column;
}
.output-area {
  flex: 1;
  padding: 20px;
  font-family:
    "SF Mono", Monaco, Inconsolata, "Roboto Mono", Consolas, monospace;
  font-size: 14px;
  line-height: 1.5;
  background: #fafbfc;
  overflow-y: auto;
  white-space: pre-wrap;
  color: var(--text-primary);
}
.output-area:empty::before {
  content: "Nəticəni görmək üçün kodu işə salın...";
  color: var(--text-secondary);
  font-style: italic;
}
.output-success {
  color: var(--success-color);
}
.output-error {
  color: var(--error-color);
  background: rgba(239, 68, 68, 0.05);
  padding: 8px;
  border-radius: var(--border-radius-sm);
  border-left: 4px solid var(--error-color);
  margin: 4px 0;
}

.controls {
  text-align: center;
  margin-bottom: 32px;
}
.run-button {
  background: var(--primary-color);
  color: white;
  border: none;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}
.run-button::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.2),
    transparent
  );
  transition: var(--transition);
}
.run-button:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 15px 25px -5px rgb(0 0 0 / 0.2);
}
.run-button:hover::before {
  left: 100%;
}
.run-button:active {
  transform: translateY(0);
}
.run-button:disabled {
  background: var(--text-secondary);
  cursor: not-allowed;
  transform: none;
  box-shadow: var(--shadow-sm);
}

.status {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: var(--border-radius-sm);
  font-size: 0.9rem;
  text-align: center;
  transition: var(--transition);
}
.status.loading {
  background: rgba(59, 130, 246, 0.1);
  color: var(--primary-color);
  border: 1px solid rgba(59, 130, 246, 0.2);
}
.status.ready {
  background: rgba(34, 197, 94, 0.1);
  color: var(--success-color);
  border: 1px solid rgba(34, 197, 94, 0.2);
}

@media (max-width: 768px) {
  .playground {
    grid-template-columns: 1fr;
  }

  .container {
    padding: 16px;
    padding-top: 4rem;
  }

  .code-editor,
  .output-panel {
    height: 300px;
  }

  .header h1 {
    font-size: 2rem;
  }

  .run-button {
    padding: 12px 24px;
    font-size: 0.9rem;
  }
}
@media (max-width: 480px) {
  .code-input,
  .output-area {
    padding: 16px;
    font-size: 13px;
  }

  .panel-header {
    padding: 12px 16px;
  }
}