/* ==================================================================
   Variables
   ================================================================== */
:root {
  /* Colors */
  --color-background: #050608; /* near-black industrial */
  --color-surface: #101319; /* dark panel */
  --color-surface-alt: #181c24;
  --color-text: #f5f5f5; /* clean white text */
  --color-text-muted: #a6aab4;
  --color-primary: #f9d300; /* high-visibility yellow */
  --color-primary-soft: rgba(249, 211, 0, 0.1);
  --color-accent: #d3122a; /* racing red */
  --color-success: #3fbf5a;
  --color-warning: #ffb400;
  --color-danger: #ff3b3b;

  --color-border-subtle: #252a33;
  --color-border-strong: #3a404c;

  /* Neutral grays (gunmetal bias) */
  --gray-50: #f7f8fa;
  --gray-100: #e2e4ea;
  --gray-200: #c4c8d2;
  --gray-300: #a5aab7;
  --gray-400: #868d9c;
  --gray-500: #676f82;
  --gray-600: #4c5466;
  --gray-700: #383f4e;
  --gray-800: #222834;
  --gray-900: #141821;

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SF Mono", Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;

  --font-size-xs: 0.75rem;  /* 12px */
  --font-size-sm: 0.875rem; /* 14px */
  --font-size-md: 1rem;     /* 16px */
  --font-size-lg: 1.125rem; /* 18px */
  --font-size-xl: 1.25rem;  /* 20px */
  --font-size-2xl: 1.5rem;  /* 24px */
  --font-size-3xl: 1.875rem;/* 30px */
  --font-size-4xl: 2.25rem; /* 36px */
  --font-size-5xl: 3rem;    /* 48px */

  --line-height-tight: 1.1;
  --line-height-snug: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* Spacing scale (0–96px) */
  --space-0: 0;
  --space-1: 0.125rem; /* 2px */
  --space-2: 0.25rem;  /* 4px */
  --space-3: 0.375rem; /* 6px */
  --space-4: 0.5rem;   /* 8px */
  --space-6: 0.75rem;  /* 12px */
  --space-8: 1rem;     /* 16px */
  --space-10: 1.25rem; /* 20px */
  --space-12: 1.5rem;  /* 24px */
  --space-16: 2rem;    /* 32px */
  --space-20: 2.5rem;  /* 40px */
  --space-24: 3rem;    /* 48px */
  --space-32: 4rem;    /* 64px */
  --space-40: 5rem;    /* 80px */
  --space-48: 6rem;    /* 96px */

  /* Radius */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-pill: 999px;

  /* Shadows (hard-edged, industrial) */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.6);
  --shadow-md: 0 6px 18px rgba(0, 0, 0, 0.65);
  --shadow-lg: 0 14px 40px rgba(0, 0, 0, 0.75);

  /* Transitions */
  --transition-fast: 120ms ease-out;
  --transition-normal: 200ms ease-out;
  --transition-slow: 320ms ease-out;
}

/* Reduced motion adjustments */
@media (prefers-reduced-motion: reduce) {
  :root {
    --transition-fast: 0ms;
    --transition-normal: 0ms;
    --transition-slow: 0ms;
  }
}

/* ==================================================================
   Reset / Normalize
   ================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  margin: 0;
}

h1,
h2,
h3,
h4,
h5,
h6,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
}

img,
svg,
video,
canvas,
audio,
iframe,
embed,
object {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
  margin: 0;
}

button {
  border: none;
  background: none;
  padding: 0;
}

fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

textarea {
  resize: vertical;
}

abbr[title] {
  text-decoration: underline dotted;
}

/* ==================================================================
   Base Styles
   ================================================================== */
body {
  font-family: var(--font-sans);
  font-size: var(--font-size-md);
  line-height: var(--line-height-normal);
  background-color: var(--color-background);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main {
  min-height: 60vh;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-sans);
  font-weight: 700;
  line-height: var(--line-height-tight);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text);
}

h1 {
  font-size: clamp(2.4rem, 3.2vw + 1rem, 3.5rem);
  margin-bottom: var(--space-12);
}

h2 {
  font-size: clamp(1.8rem, 2.4vw + 0.5rem, 2.5rem);
  margin-bottom: var(--space-10);
}

h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-8);
}

h4 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-6);
}

h5 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-4);
}

h6 {
  font-size: var(--font-size-md);
  margin-bottom: var(--space-4);
}

p {
  margin-bottom: var(--space-8);
  color: var(--color-text-muted);
}

strong,
b {
  font-weight: 700;
}

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

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

a:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

code,
pre,
kbd {
  font-family: var(--font-mono);
}

hr {
  border: 0;
  border-top: 1px solid var(--color-border-subtle);
  margin: var(--space-16) 0;
}

/* ==================================================================
   Accessibility & Focus
   ================================================================== */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Screen-reader only utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==================================================================
   Layout Utilities
   ================================================================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-16);
  padding-right: var(--space-16);
}

@media (min-width: 1440px) {
  .container {
    max-width: 1320px;
  }
}

/* Spacing utilities (margin / padding) - minimal set */
.u-mb-0 { margin-bottom: 0 !important; }
.u-mb-4 { margin-bottom: var(--space-4) !important; }
.u-mb-8 { margin-bottom: var(--space-8) !important; }
.u-mb-12 { margin-bottom: var(--space-12) !important; }
.u-mb-16 { margin-bottom: var(--space-16) !important; }

.u-pt-16 { padding-top: var(--space-16) !important; }
.u-pb-16 { padding-bottom: var(--space-16) !important; }

/* Flex helpers */
.flex {
  display: flex;
}

.inline-flex {
  display: inline-flex;
}

.flex-row {
  flex-direction: row;
}

.flex-column {
  flex-direction: column;
}

.flex-wrap {
  flex-wrap: wrap;
}

.items-center {
  align-items: center;
}

.items-start {
  align-items: flex-start;
}

.items-end {
  align-items: flex-end;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.justify-end {
  justify-content: flex-end;
}

.gap-8 {
  gap: var(--space-8);
}

.gap-16 {
  gap: var(--space-16);
}

/* Grid helpers */
.grid {
  display: grid;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-16);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-16);
}

@media (max-width: 768px) {
  .grid-2,
  .grid-3 {
    grid-template-columns: minmax(0, 1fr);
  }
}

.text-center {
  text-align: center;
}

.text-right {
  text-align: right;
}

/* ==================================================================
   Components
   ================================================================== */

/* Buttons - bold, high-contrast */
.button,
button,
input[type="button"],
input[type="submit"],
input[type="reset"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-pill);
  border: 1px solid transparent;
  background: linear-gradient(135deg, #f9d300, #ffb400);
  color: #111;
  font-weight: 700;
  font-size: var(--font-size-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    background var(--transition-normal),
    box-shadow var(--transition-fast),
    transform var(--transition-fast),
    border-color var(--transition-fast);
  box-shadow: var(--shadow-md);
}

.button--secondary {
  background: var(--color-surface-alt);
  color: var(--color-text);
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-sm);
}

.button--danger {
  background: linear-gradient(135deg, #ff3b3b, #d3122a);
  color: #fff;
}

.button:hover,
button:hover,
input[type="button"]:hover,
input[type="submit"]:hover,
input[type="reset"]:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.button--secondary:hover {
  border-color: var(--color-primary);
}

.button:active,
button:active,
input[type="button"]:active,
input[type="submit"]:active,
input[type="reset"]:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

.button:disabled,
button:disabled,
input[type="button"]:disabled,
input[type="submit"]:disabled,
input[type="reset"]:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  box-shadow: none;
}

.button:focus-visible,
button:focus-visible,
input[type="button"]:focus-visible,
input[type="submit"]:focus-visible,
input[type="reset"]:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

/* Form inputs */
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
input[type="search"],
input[type="url"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: #05070c;
  color: var(--color-text);
  line-height: var(--line-height-normal);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast);
}

input::placeholder,
textarea::placeholder {
  color: var(--gray-500);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary-soft), var(--shadow-sm);
  background-color: #080b10;
}

input[disabled],
select[disabled],
textarea[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}

label {
  display: block;
  margin-bottom: var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray-100);
}

/* Cards - for services, fleet programmes, etc. */
.card {
  background: radial-gradient(circle at top left, rgba(249, 211, 0, 0.05), transparent 55%),
    var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-subtle);
  padding: var(--space-16);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(249, 211, 0, 0.06), transparent 40%, rgba(211, 18, 42, 0.08));
  mix-blend-mode: soft-light;
  opacity: 0;
  transition: opacity var(--transition-slow);
  pointer-events: none;
}

.card:hover::before {
  opacity: 1;
}

.card--outlined {
  background: var(--color-surface-alt);
  border-style: dashed;
  border-color: var(--color-border-strong);
}

.card-header {
  margin-bottom: var(--space-8);
}

.card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-4);
}

.card-meta {
  font-size: var(--font-size-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-400);
}

.card-body {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* Tag / badge for status (e.g. MOT, Diagnostics) */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(249, 211, 0, 0.6);
  background-color: rgba(0, 0, 0, 0.85);
  color: var(--color-primary);
  font-size: var(--font-size-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.badge--danger {
  border-color: rgba(255, 59, 59, 0.7);
  color: var(--color-danger);
}

/* ==================================================================
   Imagery helpers
   ================================================================== */
.img-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.img-rounded {
  border-radius: var(--radius-md);
}

.img-elevated {
  box-shadow: var(--shadow-md);
}

/* ==================================================================
   Utility: Section styling
   ================================================================== */
.section {
  padding-top: var(--space-32);
  padding-bottom: var(--space-32);
}

.section--alt {
  background: linear-gradient(180deg, #050608 0%, #101319 100%);
}

.section-heading {
  display: inline-flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
  font-size: var(--font-size-sm);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-primary);
}

.section-heading::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 1px;
  background: linear-gradient(90deg, var(--color-primary), transparent);
}

/* ==================================================================
   Tables (for fleet maintenance data, etc.)
   ================================================================== */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.table thead {
  background-color: #0b0e14;
}

.table th,
.table td {
  padding: 0.75rem 0.75rem;
  border-bottom: 1px solid var(--color-border-subtle);
  text-align: left;
}

.table th {
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: var(--font-size-xs);
  color: var(--gray-100);
}

.table tbody tr:nth-child(even) {
  background-color: rgba(16, 19, 25, 0.65);
}

.table tbody tr:hover {
  background-color: rgba(249, 211, 0, 0.05);
}

/* ==================================================================
   Bad contrast safeguards
   ================================================================== */
::selection {
  background-color: var(--color-primary);
  color: #111;
}

body[theme="light"] {
  --color-background: #f5f5f7;
  --color-surface: #ffffff;
  --color-surface-alt: #f0f2f5;
  --color-text: #101319;
  --color-text-muted: #4c5466;
}