/**
 * HEAVY MACHINERY - Global Industrial Marketplace - Base Styles & Reset
 */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-body);
  background-color: var(--color-bg-body);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* ==========================================================================
   Typography Base
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-display);
  color: var(--color-text-heading);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--letter-spacing-tight);
  margin-bottom: var(--space-3);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); font-weight: var(--font-weight-semibold); }
h6 { font-size: var(--font-size-base); font-weight: var(--font-weight-semibold); }

p {
  margin-bottom: var(--space-4);
  color: var(--color-text-body);
}

p.lead {
  font-size: var(--font-size-md);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-muted);
}

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

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

small, .text-small {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

strong, b {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-main);
}

/* Eyebrow / Section kicker */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-tag);
  color: var(--color-primary-600);
  margin-bottom: var(--space-2);
}

.eyebrow::before {
  content: "";
  display: inline-block;
  width: 14px;
  height: 2px;
  background-color: var(--color-primary-500);
  border-radius: 1px;
}

/* ==========================================================================
   Containers & Layout Utilities
   ========================================================================== */

.container-marketplace {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container-wide {
  width: 100%;
  max-width: 1480px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.container-narrow {
  width: 100%;
  max-width: 960px;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

.section-padding {
  padding-top: var(--space-20);
  padding-bottom: var(--space-20);
}

.section-padding-sm {
  padding-top: var(--space-12);
  padding-bottom: var(--space-12);
}

/* Section Header pattern */
.section-header {
  margin-bottom: var(--space-10);
}

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

.section-header .section-title {
  font-size: clamp(1.875rem, 3vw, 2.375rem);
  color: var(--color-text-heading);
  letter-spacing: var(--letter-spacing-tight);
  margin-bottom: var(--space-2);
}

.section-header .section-subtitle {
  font-size: var(--font-size-md);
  color: var(--color-text-muted);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.section-header.text-start .section-subtitle {
  margin-left: 0;
}

/* ==========================================================================
   Focus & Accessibility
   ========================================================================== */

:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

.visually-hidden,
.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* Selection Highlight */
::selection {
  background-color: var(--color-primary-100);
  color: var(--color-primary-900);
}

/* Subtle Industrial Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-subtle);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border-medium);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-400);
}

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