/* Variables */
:root {
  --color-bg: #f9f9f8;
  --color-surface: #ffffff;
  --color-text: #2c2b2a;
  --color-text-muted: #5e5c5a;
  --color-primary: #1e3a4c;
  --color-primary-hover: #142a38;
  --color-accent: #c4834f;
  --color-border: #e2e1e0;
  --color-warning-bg: #fff3cd;
  --color-warning-text: #856404;
  --color-success: #28a745;
  
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 32px;
  --spacing-xl: 64px;
}

/* Reset & Base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

h1, h2, h3, h4 {
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

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

a:hover {
  text-decoration: underline;
}

/* Layout */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-md) 0;
  margin-bottom: var(--spacing-xl);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-primary);
}

.brand h1 {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.site-header nav {
  display: flex;
  gap: var(--spacing-md);
}

.site-header nav a {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

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

/* Main Application Area */
.app-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

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

.panel {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  border: 1px solid var(--color-border);
  box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.subtitle {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
  font-size: 0.95rem;
}

/* Forms */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

@media (max-width: 600px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.form-group {
  margin-bottom: var(--spacing-md);
}

label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--color-text);
}

.hint {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: normal;
}

input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 1rem;
  background-color: var(--color-surface);
  transition: border-color 0.2s;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px rgba(30, 58, 76, 0.1);
}

/* Buttons */
button {
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  border: none;
  transition: background-color 0.2s, transform 0.1s;
}

.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
  width: 100%;
}

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

.btn-secondary {
  background-color: var(--color-border);
  color: var(--color-text);
  padding: 8px 12px;
  font-size: 0.9rem;
}

.btn-secondary:hover {
  background-color: #d0cecd;
}

.btn-text {
  background: none;
  color: var(--color-text-muted);
  text-decoration: underline;
  padding: 0;
  font-size: 0.9rem;
  margin-bottom: var(--spacing-sm);
}

/* Output Area */
.output-box {
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--spacing-md);
  min-height: 200px;
  white-space: pre-wrap;
  font-size: 1.05rem;
  color: var(--color-text);
}

.output-box.empty-state {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  text-align: center;
  font-style: italic;
}

.action-group {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

/* Warnings & Hidden Elements */
.warning {
  background-color: var(--color-warning-bg);
  color: var(--color-warning-text);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  margin-top: 8px;
  border: 1px solid #ffeeba;
}

.hidden {
  display: none !important;
}

/* Log Section */
.log-section {
  margin-bottom: var(--spacing-xl);
}

.log-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.log-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
}

.log-card.copied {
  border-color: var(--color-success);
}

.log-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.log-body {
  font-size: 0.9rem;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  color: var(--color-text);
}

/* Guide */
.guide-section {
  max-width: 800px;
  margin: 0 auto var(--spacing-xl) auto;
}

.guide-content h3 {
  margin-top: var(--spacing-lg);
  font-size: 1.25rem;
}

.guide-content p {
  margin-bottom: var(--spacing-md);
}

.guide-content ul {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

.guide-content li {
  margin-bottom: 8px;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-lg) 0;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-links {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}



/* 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;
}