/* Base Styles */

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  background: #fff;
  color: #111;
  line-height: 1.6;
}


/* Header */
header, .site-header {
  text-align: center;
  padding: 40px 20px;
  background: #000;
  color: #fff;
}

h2 {
  text-align: center;
}

/* Sections */
section {
  padding: 20px;
}

/* Header Structure */
.site-header {
  text-align: center;
  margin-bottom: 1em;
  padding: 40px 20px;
  background: #004080;
  color: #fff;
}


.site-title {
  font-size: 2em;
  font-style: italic;
  font-weight: bold;
  color: #fff;
}

.site-subtitle {
  font-size: 1.1em;
  margin: 0.5em 0 0.7em 0;
}


.site-nav {
  margin: 0.7em 0 0.5em 0;
  display: flex;
  justify-content: center;
  gap: 1.5em;
  align-items: center;
  flex-wrap: wrap;
  overflow-x: auto;
}

.site-nav a {
  color: #fff;
  text-decoration: underline;
  font-weight: 500;
  font-size: 1.05em;
  padding: 0.2em 0.7em;
  border-radius: 5px;
  background: transparent;
  transition: outline 0.2s, background 0.2s;
  outline: none;
}

.site-nav a.active {
  font-weight: 700;
  text-decoration: underline;
  background: #222;
}

.site-nav a:focus {
  outline: 2px solid #fff;
  outline-offset: 2px;
  background: #222;
}

.site-nav a:hover {
  background: #222;
  text-decoration: underline;
}

.site-nav img {
  height: 2em;
  border-radius: 6px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
  vertical-align: middle;
  background: #fff;
}


@media (max-width: 600px) {
  .site-nav {
    gap: 0.5em;
    padding: 0.5em 0.2em;
    font-size: 0.98em;
    flex-wrap: wrap;
    justify-content: center;
  }
  .site-nav a,
  .site-nav img {
    font-size: 0.98em;
    padding: 0.2em 0.5em;
    margin: 0.1em 0.1em;
  }
  .site-nav img {
    height: 1.7em;
    min-width: 1.7em;
  }
}


/* Form */
form {
  background: #fff;
  padding: 20px;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  max-width: 600px;
  margin: 0 auto;
  box-sizing: border-box;
  color: #111;
}

input, select, textarea {
  width: 100%;
  margin-bottom: 15px;
  padding: 8px;
  border: 1px solid #333;
  border-radius: 4px;
  box-sizing: border-box;
  background-color: #fff;
  color: #111;
  font-size: 1rem;
  transition: border 0.2s, box-shadow 0.2s;
}

input:disabled {
  background-color: #f4f4f4;
  color: #888;
}

input:focus, select:focus, textarea:focus {
  outline: 2px solid #000;
  outline-offset: 2px;
  border-color: #000;
  box-shadow: 0 0 0 2px #ccc;
}

label {
  font-weight: 600;
  margin-bottom: 5px;
  display: inline-block;
  color: #111;
}


/* Buttons */
button {
  background: #000;
  color: #fff;
  padding: 12px 16px;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  transition: background 0.3s, outline 0.2s;
  outline: none;
}

button:focus {
  outline: 2px solid #000;
  outline-offset: 2px;
  background: #333;
}

button:hover {
  background: #333;
  color: #fff;
  text-decoration: underline;
}


/* Table (Vehicle Selector) */
table {
  width: 100%;
  max-width: 600px;
  margin: auto;
  border-collapse: separate;
  border-spacing: 0 0.5em;
  background: #fff;
  color: #111;
}

/* Vertically center table cells */
table td, table th {
  vertical-align: middle;
  padding: 0.5em 0.5em;
}

table th:first-child,
table td:first-child {
  width: 40px;
}

table th:last-child,
table td:last-child {
  width: 80px;
}

table input[type="checkbox"] {
  vertical-align: middle;
  accent-color: #000;
  transform: translateY(-2px);
}

table input[type="checkbox"]:focus {
  outline: 2px solid #000;
  outline-offset: 2px;
}

table input[type="number"] {
  width: 60px;
  text-align: center;
  margin: 0 auto;
  display: block;
  color: #111;
  background: #fff;
  border: 1px solid #333;
}

caption {
  caption-side: top;
  font-weight: bold;
  font-size: 1.1em;
  margin-bottom: 0.5em;
  color: #111;
}

td input[type="checkbox"] {
  vertical-align: middle;
  transform: translateY(4.5px);
}


/* Estimate Result Box */
#estimate-result {
  text-align: center;
  font-size: 1.2em;
  font-weight: bold;
  color: #111;
  margin-bottom: 1.5em;
}


/* Footer */
footer {
  text-align: center;
  padding: 20px;
  background: #000;
  color: #fff;
  font-size: 14px;
}

footer a, footer a:visited, footer a:active {
  color: #fff !important;
  text-decoration: underline;
  word-break: break-all;
}

/* Utility: Gray backgrounds for blocks */
.gray-bg {
  background: #f4f4f4;
  color: #111;
}

/* Utility: White background for main content blocks */
.white-bg {
  background: #fff;
  color: #111;
}

/* Utility: Black background for header/footer */
.black-bg {
  background: #000;
  color: #fff;
}

/* Utility: For blocks with subtle border */
.bordered {
  border: 1px solid #ccc;
  border-radius: 8px;
}

/* Focus visible for all interactive elements */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 2.5px solid #000;
  outline-offset: 2px;
}

/* Ensure link hover/focus is visible and not color-only */
a:hover, a:focus {
  text-decoration: underline;
  background: #222;
  color: #fff !important;
}

/* For accessibility: never use light gray for text on white */
.light-text {
  color: #888;
}