/* ClaroUtil — Global Styles */
:root {
  --blue: #3B82F6;
  --blue-dark: #2563EB;
  --amber: #F59E0B;
  --navy: #1E293B;
  --text: #1E293B;
  --text-secondary: #64748B;
  --text-tertiary: #94A3B8;
  --bg-page: #FAFAF7;
  --bg-surface: #FFFFFF;
  --bg-subtle: #F1F5F9;
  --border: #E2E8F0;
  --border-subtle: #F1F5F9;
  --shadow-md: 0 4px 6px rgba(0,0,0,0.07);
  --radius-4: 4px;
  --radius-8: 8px;
  --radius-12: 12px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, sans-serif;
  margin: 0;
  padding: 0;
  background: var(--bg-page);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.cu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  position: sticky;
  top: 0;
  z-index: 10;
}
.cu-logo { display: flex; align-items: center; text-decoration: none; }
.cu-logo img { height: 56px; width: auto; display: block; }
.cu-logo:hover { text-decoration: none; }

.cu-nav { display: flex; gap: 8px; font-size: 14px; }
.cu-nav a {
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: var(--radius-4);
  text-decoration: none;
}
.cu-nav a:hover, .cu-nav a.active {
  color: var(--blue);
  background: var(--bg-subtle);
}

/* Container */
.container { max-width: 900px; margin: 0 auto; padding: 24px; }

/* Hero */
.cu-hero {
  padding: 48px 24px 32px;
  text-align: center;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
}
.cu-hero h1 {
  font-size: 36px;
  margin: 0 0 12px;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.5px;
}
.cu-hero p { font-size: 17px; color: var(--text-secondary); margin: 0; }

/* Tools Grid */
.cu-tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  padding: 40px 24px;
  max-width: 1000px;
  margin: 0 auto;
}
.cu-tool-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-12);
  padding: 24px;
  text-align: center;
  transition: all 0.15s;
  text-decoration: none;
  color: inherit;
  display: block;
}
.cu-tool-card:hover {
  border-color: var(--blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}
.cu-tool-icon { font-size: 36px; margin-bottom: 8px; }
.cu-tool-name { font-size: 16px; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.cu-tool-desc { font-size: 13px; color: var(--text-secondary); }

/* Tool Page */
.cu-tool-page { max-width: 640px; margin: 0 auto; padding: 40px 24px; }
.cu-tool-page h1, .cu-tool-page h2 {
  font-size: 28px;
  margin: 0 0 8px;
  color: var(--text);
  font-weight: 700;
}
.cu-tool-page .subtitle {
  color: var(--text-secondary);
  font-size: 15px;
  margin: 0 0 32px;
}
.cu-back {
  display: inline-block;
  color: var(--blue);
  font-size: 14px;
  margin-bottom: 24px;
  text-decoration: none;
}
.cu-back:hover { text-decoration: underline; }

/* Form Inputs */
.cu-input-group { margin-bottom: 16px; }
.cu-input-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}
.cu-input-group input,
.cu-input-group select,
.cu-input-group textarea {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-8);
  font-size: 15px;
  font-family: inherit;
  background: var(--bg-surface);
  color: var(--text);
}
.cu-input-group input:focus,
.cu-input-group select:focus,
.cu-input-group textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}
.cu-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* Buttons */
.cu-btn {
  background: var(--blue);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: var(--radius-8);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
.cu-btn:hover { background: var(--blue-dark); }
.cu-btn-outline {
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 16px;
  border-radius: var(--radius-8);
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
}
.cu-btn-outline:hover { border-color: var(--blue); color: var(--blue); }
.cu-btn-outline.active { background: var(--blue); color: white; border-color: var(--blue); }
.cu-tabs { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }

/* Result */
.cu-result {
  background: var(--bg-subtle);
  border-left: 4px solid var(--amber);
  padding: 20px;
  border-radius: var(--radius-8);
  margin-top: 20px;
}
.cu-result-big {
  font-size: 32px;
  font-weight: 700;
  color: var(--blue);
  margin: 4px 0;
}
.cu-result-label {
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.cu-result-note {
  font-size: 13px;
  color: var(--text-secondary);
  margin-top: 8px;
}

/* Stats */
.cu-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 16px;
}
.cu-stat {
  background: var(--bg-subtle);
  padding: 14px 10px;
  border-radius: var(--radius-8);
  text-align: center;
}
.cu-stat-num { font-size: 22px; font-weight: 700; color: var(--blue); }
.cu-stat-lbl {
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.3px;
  margin-top: 2px;
}

/* Disclaimer */
.cu-disclaimer {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 24px;
  padding: 12px 16px;
  background: var(--bg-subtle);
  border-radius: var(--radius-8);
  line-height: 1.5;
}

/* Legal pages */
.cu-legal { max-width: 720px; margin: 0 auto; padding: 40px 24px; }
.cu-legal h1 { font-size: 32px; margin: 0 0 8px; }
.cu-legal .updated { color: var(--text-tertiary); font-size: 13px; margin: 0 0 32px; }
.cu-legal h2 {
  font-size: 20px;
  margin: 32px 0 12px;
  color: var(--text);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-subtle);
}
.cu-legal p { margin: 12px 0; color: var(--text); font-size: 15px; }
.cu-legal ul { padding-left: 20px; }
.cu-legal ul li { margin: 6px 0; font-size: 15px; }

/* Footer */
.cu-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 32px 24px;
  font-size: 13px;
  color: var(--text-tertiary);
  text-align: center;
  background: var(--bg-surface);
  margin-top: 40px;
}
.cu-footer a { color: var(--text-secondary); margin: 0 6px; }
.cu-footer .row-copy { margin-bottom: 6px; }

/* Mobile */
@media (max-width: 640px) {
  .cu-header { padding: 10px 16px; }
  .cu-logo img { height: 48px; }
  .cu-nav { gap: 4px; }
  .cu-nav a { padding: 6px 10px; font-size: 13px; }
  .cu-hero { padding: 32px 20px 24px; }
  .cu-hero h1 { font-size: 26px; }
  .cu-hero p { font-size: 15px; }
  .cu-tools-grid { padding: 24px 16px; grid-template-columns: 1fr 1fr; gap: 12px; }
  .cu-tool-card { padding: 18px 12px; }
  .cu-tool-icon { font-size: 30px; }
  .cu-tool-name { font-size: 14px; }
  .cu-tool-desc { font-size: 11px; }
  .cu-tool-page { padding: 24px 16px; }
  .cu-tool-page h1, .cu-tool-page h2 { font-size: 22px; }
  .cu-row { grid-template-columns: 1fr; gap: 8px; }
  .cu-stats { grid-template-columns: repeat(2, 1fr); }
  .cu-legal { padding: 24px 16px; }
  .cu-legal h1 { font-size: 24px; }
  .cu-legal h2 { font-size: 18px; }
}