:root {
  --bg-color: #F7F3E9;
  --card-bg: #FFFFFF;
  --primary: #FF5252;
  --primary-hover: #FF1744;
  --secondary: #FFC107;
  --success: #2E7D32;
  --text: #1A1A1A;
  --border: 3px solid #1A1A1A;
  --shadow: 5px 5px 0px #1A1A1A;
  --radius: 12px;
  --font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text);
  font-family: var(--font-family);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background-image: 
    radial-gradient(rgba(0,0,0,0.06) 1px, transparent 1px);
  background-size: 24px 24px;
}

.container {
  max-width: 750px;
  width: 100%;
  margin: 0 auto;
}

.card {
  background-color: var(--card-bg);
  border: var(--border);
  box-shadow: var(--shadow);
  border-radius: var(--radius);
  padding: 32px;
}

.tester-top-header {
  margin-bottom: 20px;
  border-bottom: var(--border);
  padding-bottom: 16px;
}

.tester-top-header h2 {
  font-size: 1.5rem;
  font-weight: 900;
}

.tester-subtitle {
  font-size: 0.85rem;
  color: #555;
  font-weight: 600;
  margin-top: 4px;
}

.btn-telegram {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  background-color: #0088cc !important;
  color: white !important;
  font-weight: 800;
  box-shadow: 3px 3px 0px var(--text);
  transition: transform 0.1s, box-shadow 0.1s;
  padding: 14px;
  border: var(--border);
  border-radius: 8px;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
}

.btn-telegram:hover {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0px var(--text);
  background-color: #0077b3 !important;
}

.mb-3 {
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-weight: 800;
  margin-bottom: 6px;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
}

input, textarea, select {
  width: 100%;
  padding: 12px 14px;
  border: var(--border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  outline: none;
  transition: all 0.2s;
  background: #FAFAFA;
}

input:focus, textarea:focus, select:focus {
  box-shadow: 3px 3px 0px var(--secondary);
  background: #FFFFFF;
}

textarea {
  resize: vertical;
  min-height: 80px;
}

.btn {
  width: 100%;
  padding: 14px;
  border: var(--border);
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 800;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.1s, box-shadow 0.1s;
  letter-spacing: 0.5px;
}

.btn-primary {
  background-color: var(--primary);
  color: white;
  box-shadow: 3px 3px 0px var(--text);
}

.btn-primary:hover:not(:disabled) {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0px var(--text);
  background-color: var(--primary-hover);
}

.btn-secondary {
  background-color: var(--secondary);
  color: var(--text);
  box-shadow: 3px 3px 0px var(--text);
}

.btn-secondary:hover:not(:disabled) {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0px var(--text);
}

.btn-sm {
  padding: 8px 14px;
  width: auto;
  font-size: 0.75rem;
}

.tester-actions {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.tester-section {
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 2px dashed #DDD;
}

.tester-section:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.tester-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.tester-method {
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 0.75rem;
  text-transform: uppercase;
}

.method-get {
  background: var(--success);
  color: white;
}

.tester-endpoint {
  font-family: monospace;
  background: #F1F1F1;
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 0.85rem;
  font-weight: 600;
}

.tester-desc {
  color: #555;
  font-size: 0.85rem;
  margin-bottom: 10px;
}

.tester-params {
  background: #F8F9FA;
  padding: 14px;
  border-radius: 8px;
  border: 2px solid #E0E0E0;
  margin-bottom: 12px;
}

.tester-response {
  background: #18181B;
  border-radius: 8px;
  padding: 14px;
  margin-top: 10px;
  overflow-x: auto;
  border: 2px solid var(--text);
}

.tester-response pre {
  color: #F4F4F5;
  font-family: monospace;
  font-size: 0.8rem;
  white-space: pre-wrap;
  word-wrap: break-word;
  margin: 0;
}

.tester-response .response-meta {
  color: #A1A1AA;
  font-size: 0.7rem;
  margin-bottom: 8px;
  display: flex;
  gap: 12px;
}

.tabs {
  display: flex;
  gap: 0;
  margin-bottom: 20px;
  border: var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: #EEE;
}

.tab {
  flex: 1;
  padding: 10px 14px;
  background: #F3F4F6;
  border: none;
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s;
}

.tab.active {
  background: var(--text);
  color: white;
}

.tab-content {
  display: none;
  animation: fadeIn 0.2s ease-in-out;
}

.tab-content.active {
  display: block;
}

@media (max-width: 600px) {
  body {
    padding: 12px;
  }
  .card {
    padding: 20px;
  }
}