/* Wspólny styl dla narzędzi iqrobot.pl */

* {
  box-sizing: border-box;
}

:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --secondary: #0ea5e9;
  --secondary-hover: #0284c7;
  --bg: #f5f5f5;
  --card: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --border: #d1d5db;
  --danger: #dc2626;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1rem;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

header {
  text-align: center;
  margin-bottom: 2rem;
}

header h1 {
  margin: 0 0 0.5rem;
  font-size: 2rem;
}

header p {
  margin: 0;
  color: var(--muted);
}

nav {
  margin-bottom: 1.5rem;
}

nav a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.95rem;
}

nav a:hover {
  color: var(--primary);
}

.container {
  background: var(--card);
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.tool-card {
  display: block;
  padding: 1.25rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 0.15s, border-color 0.15s;
}

.tool-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  text-decoration: none;
}

.tool-card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  color: var(--text);
}

.tool-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

textarea,
input[type="text"] {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: monospace;
  font-size: 0.95rem;
  resize: vertical;
}

textarea {
  min-height: 120px;
}

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1rem 0;
}

button,
.button {
  flex: 1;
  min-width: 120px;
  padding: 0.75rem;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  cursor: pointer;
  text-align: center;
  transition: background 0.2s;
}

button:disabled,
.button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

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

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

.secondary-btn {
  background-color: var(--secondary);
  color: white;
}

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

.neutral-btn {
  background-color: #e5e7eb;
  color: #374151;
}

.neutral-btn:hover {
  background-color: #d1d5db;
}

.error {
  color: var(--danger);
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

.hint {
  margin-top: 1.5rem;
  font-size: 0.85rem;
  color: var(--muted);
}

footer {
  text-align: center;
  margin-top: 2rem;
  font-size: 0.85rem;
  color: var(--muted);
}