:root {
    --bg-color: #0d1117;
    --card-bg: #161b22;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --accent: #58a6ff;
    --accent-hover: #3182ce;
    --border-color: #30363d;
    --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.logo svg {
    color: var(--accent);
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 1.5rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

.container {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 1rem;
}

main {
    flex: 1;
    padding: 3rem 1rem;
}

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
}

section h1, section h2, section h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

section h1 {
    font-size: 2.25rem;
    text-align: center;
}

section p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.lead {
    text-align: center;
    font-size: 1.125rem;
    max-width: 700px;
    margin: 0 auto 2.5rem;
}

code {
    font-family: Consolas, Monaco, "Courier New", monospace;
    background: rgba(110, 118, 129, 0.1);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    color: #ff7b72;
}

.ad-container {
    margin-bottom: 2rem;
    text-align: center;
}

/* Workspace */
.workspace {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    gap: 2rem;
    align-items: center;
    margin-top: 2rem;
}

.controls-group h3 {
    font-size: 1rem;
    margin-bottom: 1rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.control {
    margin-bottom: 1.25rem;
}

.control label {
    display: block;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

input[type="range"] {
    width: 100%;
    -webkit-appearance: none;
    background: transparent;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 16px;
    width: 16px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    margin-top: -6px;
}

input[type="range"]::-webkit-slider-runnable-track {
    width: 100%;
    height: 4px;
    cursor: pointer;
    background: var(--border-color);
    border-radius: 2px;
}

.preview-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.shape-preview {
    width: 250px;
    height: 250px;
    background: linear-gradient(135deg, #58a6ff, #a371f7);
    border-radius: 50%;
    transition: border-radius 0.1s ease;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.output-box {
    background: #0d1117;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 1rem;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    text-align: center;
}

.output-box code {
    word-break: break-all;
    background: transparent;
    color: var(--text-primary);
    font-size: 0.9rem;
}

button {
    background-color: var(--accent);
    color: #fff;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.875rem;
    cursor: pointer;
    font-weight: 600;
    transition: background-color 0.2s;
}

button:hover {
    background-color: var(--accent-hover);
}

footer {
    background-color: var(--card-bg);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: auto;
}

footer .container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

footer p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
}

.footer-links a:hover {
    color: var(--accent);
}

@media (max-width: 768px) {
    .workspace {
        grid-template-columns: 1fr;
    }
    .controls-group {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }
    .controls-group h3 {
        grid-column: 1 / -1;
    }
}


/* Factory-injected deployment helpers. The AI owns the site design above this block. */
.ad-unit {
  width: min(100%, 720px);
  min-height: 120px;
  margin: 24px auto;
  display: block;
}

.legal-page {
  width: min(900px, calc(100% - 32px));
  margin: 40px auto;
}

.factory-fallback-nav {
  width: min(900px, calc(100% - 32px));
  margin: 24px auto 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  align-items: center;
  font-size: 0.95rem;
}

.factory-fallback-nav a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}