/*
  AMREA public website — homepage v1 draft styles.

  Colour variables below use the PROVISIONAL visual direction from
  docs/brand-and-website-foundation.md (Section 9). All colours are
  pending brand approval and may change before public launch.
*/

:root {
  /* Provisional colours — pending brand approval */
  --color-accent: #e35205;       /* industrial safety orange (provisional) */
  --color-accent-dark: #b8430a;  /* darker orange for hover/active states */
  --color-neutral: #2b2b2e;      /* charcoal / graphite (provisional) */
  --color-neutral-soft: #4a4a4f;
  --color-background: #faf7f2;   /* warm off-white / near-white (provisional) */
  --color-surface: #ffffff;
  --color-border: #e4ddd2;
  --color-technical: #4a6c8c;    /* restrained steel-blue — technical accents only (provisional) */
  --color-text-muted: #6b6b6e;

  --font-base: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;

  --max-width: 1200px;
  --radius: 2px;
}

/* Base reset */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--color-neutral);
  background-color: var(--color-background);
  line-height: 1.55;
  font-size: 1rem;
}

img {
  max-width: 100%;
  display: block;
}

ul,
ol {
  padding-left: 1.25rem;
}

a {
  color: var(--color-accent-dark);
  text-decoration: underline;
}

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

h1,
h2,
h3 {
  color: var(--color-neutral);
  line-height: 1.2;
  margin-top: 0;
}

.wrap {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-2);
  padding-right: var(--space-2);
}

/* Focus-visible states for keyboard navigation */
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-technical);
  outline-offset: 2px;
}

/* Motion: keep minimal and functional only */
.site-nav,
.nav-toggle {
  transition: none;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---------- Header ---------- */

.site-header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
  flex-wrap: wrap;
  gap: var(--space-1);
}

.brand {
  display: inline-flex;
  align-items: center;
}

.brand-logo {
  height: 44px;
  width: auto;
}

.nav-toggle {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.4rem 0.75rem;
  font-size: 0.9rem;
  color: var(--color-neutral);
  cursor: pointer;
}

.site-nav {
  width: 100%;
  order: 3;
  display: none;
}

.site-nav.is-open {
  display: block;
}

.site-nav ul {
  list-style: none;
  padding-left: 0;
  margin: var(--space-1) 0 0 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.site-nav a {
  text-decoration: none;
  color: var(--color-neutral);
  font-weight: 600;
}

.site-nav a:hover {
  color: var(--color-accent-dark);
}

/* ---------- Hero ---------- */

.hero {
  background-color: var(--color-surface);
  padding-top: var(--space-5);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--color-border);
}

.hero__inner {
  text-align: center;
  max-width: 780px;
}

.hero__headline {
  font-size: 1.9rem;
  margin-bottom: var(--space-2);
}

.hero__tagline {
  font-size: 1.05rem;
  color: var(--color-neutral-soft);
  margin-bottom: var(--space-3);
}

.hero__cta {
  margin-top: var(--space-2);
}

/* ---------- Buttons ---------- */

.button {
  display: inline-block;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius);
  text-decoration: none;
  font-weight: 600;
  border: 2px solid transparent;
}

.button--primary {
  background-color: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
}

.button--primary:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: #ffffff;
}

/* ---------- Sections ---------- */

.section {
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
  text-align: left;
}

.section--alt {
  background-color: #f2ece2;
}

.section h2 {
  font-size: 1.5rem;
  margin-bottom: var(--space-2);
}

.section p {
  max-width: 760px;
}

/* Pending-verification / site-specific claim caveats */
.claim {
  margin-top: var(--space-3);
  font-size: 1.05rem;
}

.claim__caveat {
  color: var(--color-text-muted);
  font-style: italic;
  font-size: 0.8rem;
}

/* ---------- Services ---------- */

.service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.service-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
}

.service-card h3 {
  font-size: 1.15rem;
  margin-bottom: var(--space-1);
}

.service-card ul {
  margin: 0;
  padding-left: 1.1rem;
}

.service-card li {
  margin-bottom: var(--space-1);
}

.service-card__note {
  margin: 0.35rem 0 0 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ---------- Process steps ---------- */

.process-steps {
  list-style: none;
  padding-left: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.process-steps li {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 600;
}

.process-steps__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
  border: 2px solid var(--color-technical);
  color: var(--color-technical);
  border-radius: var(--radius);
  font-size: 0.95rem;
}

/* ---------- Footer ---------- */

.site-footer {
  background-color: var(--color-neutral);
  color: #ffffff;
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
}

.site-footer__inner {
  text-align: left;
}

.site-footer p {
  margin: 0.25rem 0;
}

.site-footer__meta {
  color: #cfcfd1;
  font-size: 0.9rem;
}

.site-footer__rca {
  color: #9a9a9d;
  font-size: 0.85rem;
  font-style: italic;
}

/* ---------- Responsive breakpoints ---------- */

@media (min-width: 640px) {
  .site-header__inner {
    flex-wrap: nowrap;
  }

  .nav-toggle {
    display: none;
  }

  .site-nav {
    display: block;
    width: auto;
    order: 2;
  }

  .site-nav ul {
    flex-direction: row;
    gap: var(--space-3);
    margin: 0;
  }
}

@media (min-width: 768px) {
  .hero__headline {
    font-size: 2.3rem;
  }

  .process-steps {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .process-steps li {
    flex: 0 1 auto;
  }
}

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

@media (min-width: 1280px) {
  .hero__headline {
    font-size: 2.6rem;
  }
}