/**
 * ODIN Compressores - Base Styles
 * Corporate industrial design inspired by Aramco, Chevron, Shell.
 * Premium feel: generous spacing, impactful typography, clean structure.
 */

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

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

body {
  font-family: var(--font-family-sans);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: 1.6;
  color: var(--color-neutral-800);
  background-color: var(--color-neutral-100);
  overflow-x: hidden;
}

img,
picture,
video,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-accent-500);
  text-decoration: none;
  transition: color var(--duration-fast) var(--easing);
}

a:hover {
  color: var(--color-primary-600);
}

ul,
ol {
  list-style: none;
}

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

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* ─── Typography — Corporate Industrial ─────────────────────── */
h1, h2, h3, h4, .h1, .h2, .h3, .h4 {
  font-family: var(--font-family-heading);
}

h1, .h1 {
  font-size: 2.5rem;
  font-weight: var(--font-weight-extrabold);
  line-height: 1.05;
  color: var(--color-neutral-900);
  letter-spacing: -0.035em;
}

h2, .h2 {
  font-size: 2rem;
  font-weight: var(--font-weight-bold);
  line-height: 1.1;
  color: var(--color-neutral-900);
  letter-spacing: -0.025em;
}

h3, .h3 {
  font-size: 1.5rem;
  font-weight: var(--font-weight-semibold);
  line-height: 1.15;
  color: var(--color-neutral-900);
  letter-spacing: -0.02em;
}

h4, .h4 {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  line-height: 1.2;
  color: var(--color-neutral-900);
  letter-spacing: -0.015em;
}

p {
  margin-bottom: var(--space-5);
  line-height: 1.7;
  color: var(--color-neutral-600);
}

.text-sm { font-size: var(--font-size-sm); }
.text-lg { font-size: 1.125rem; line-height: 1.7; }
.text-xl { font-size: 1.25rem; line-height: 1.6; }

@media (min-width: 768px) {
  h1, .h1 { font-size: 3.25rem; }
  h2, .h2 { font-size: 2.5rem; }
  h3, .h3 { font-size: 1.75rem; }
}

@media (min-width: 1024px) {
  h1, .h1 { font-size: 4rem; }
  h2, .h2 { font-size: 2.75rem; }
  h3, .h3 { font-size: 2rem; }
}

/* ─── Layout — Generous Spacing ─────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--grid-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-5);
  padding-right: var(--space-5);
}

@media (min-width: 768px) {
  .container {
    padding-left: var(--space-7);
    padding-right: var(--space-7);
  }
}

.section {
  padding-top: 80px;
  padding-bottom: 80px;
}

@media (min-width: 1024px) {
  .section {
    padding-top: 120px;
    padding-bottom: 120px;
  }
}

.grid {
  display: grid;
  gap: 32px;
}

.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid { gap: 40px; }
}

@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }

  /* Center 1-2 items in 3-col grids */
  .grid-3 > :only-child { grid-column: 2; }
  .grid-3 > :first-child:nth-last-child(2),
  .grid-3 > :first-child:nth-last-child(2) ~ * {
    grid-column: auto;
  }
  .grid-3:has(> :first-child:nth-last-child(2)) {
    grid-template-columns: repeat(2, 1fr);
    max-width: 720px;
    margin-inline: auto;
  }
}

/* ─── Utilities ─────────────────────────────────────────────── */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-primary-500); }
.text-accent { color: var(--color-accent-500); }
.text-muted { color: var(--color-neutral-600); }
.text-white { color: var(--color-neutral-0); }

.bg-white { background-color: var(--color-neutral-0); }
.bg-light { background-color: var(--color-neutral-50); }
.bg-surface { background-color: var(--color-brand-surface, var(--color-neutral-50)); }

/* Push main content below fixed header on pages without hero */
body:not([data-has-hero="true"]) #main-content {
  padding-top: 80px;
}
body[data-company]:not([data-has-hero="true"]) #main-content {
  padding-top: 116px;
}
.bg-primary { background-color: var(--color-primary-500); }
.bg-dark { background-color: var(--color-neutral-900); }

.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;
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }

/* ─── Divider — Subtle section separator ────────────────────── */
.divider {
  width: 60px;
  height: 3px;
  background: var(--color-brand);
  border: none;
  margin: var(--space-5) 0;
}

.divider--center {
  margin-left: auto;
  margin-right: auto;
}

/* ─── Focus Visible (Accessibility) ─────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-accent-500);
  outline-offset: 2px;
}

/* ─── Skip Link ─────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 9999;
  padding: var(--space-3) var(--space-5);
  background: var(--color-brand);
  color: var(--color-neutral-0);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-sm);
  transition: top var(--duration-fast) var(--easing);
}

.skip-link:focus {
  top: var(--space-4);
}

/* ─── Selection ─────────────────────────────────────────────── */
::selection {
  background: var(--color-brand);
  color: var(--color-neutral-0);
}