:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --text: #0f172a;
    --text-light: #475569;
    --success: #16a34a;
    --error: #dc2626;
    --border: #e2e8f0;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--bg);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

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

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

main {
    padding: 3rem 0;
}

section {
    margin-bottom: 4rem;
}

h1 {
    font-size: 2.5rem;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h2 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    color: var(--text);
}

h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.hero {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem;
}

.hero p {
    font-size: 1.1rem;
}

.tool-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

@media(min-width: 768px) {
    .tool-layout {
        grid-template-columns: 1fr 1fr;
    }
}

textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 0.375rem;
    font-family: inherit;
    font-size: 1rem;
    resize: vertical;
    margin-bottom: 1rem;
}

textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.btn {
    display: inline-block;
    background-color: var(--primary);
    color: white;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.375rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
    width: 100%;
}

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

.checklist {
    list-style: none;
    margin-top: 1.5rem;
}

.checklist li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.25rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border);
}

.checklist li:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.icon {
    width: 24px;
    height: 24px;
    margin-right: 1rem;
    flex-shrink: 0;
    color: var(--text-light);
}

.status-pass .icon {
    color: var(--success);
}

.status-fail .icon {
    color: var(--error);
}

.status-fail .icon path {
    d: path("M18 6L6 18M6 6l12 12");
}

.feedback {
    display: block;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-top: 0.25rem;
}

.overall-advice {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 0.375rem;
    background-color: #f1f5f9;
    font-weight: 500;
}

.grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media(min-width: 768px) {
    .grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

.mt-4 {
    margin-top: 2rem;
}

footer {
    text-align: center;
    padding: 2rem 0;
    background-color: var(--card-bg);
    border-top: 1px solid var(--border);
    color: var(--text-light);
    margin-top: 4rem;
}

footer nav {
    margin-top: 1rem;
}

footer a {
    color: var(--text-light);
    margin: 0 0.5rem;
}


/* 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;
}