/* ==========================================================================
   Areta Earthworks — stylesheet
   Vanilla CSS, mobile-first: small-screen rules first, scaled up after.
   ========================================================================== */

:root {
  /* Brand colours — sampled from the Areta logo */
  --cream: #f1eee9;
  --cream-soft: #e8e2d8;
  --cream-deep: #ddd4c5;
  --charcoal: #2c2b28;
  --charcoal-soft: #46433e;
  --brown: #7e5a3f;
  --brown-deep: #5c4029;
  --brown-pale: #c9ad8f;
  --white: #ffffff;
  --ink: #2c2b28;
  --success: #4a7a52;
  --error: #a8452f;

  --font-heading: 'Century Gothic', 'Avenir Next', 'Segoe UI', Avenir, Arial, sans-serif;
  --font-body: 'Segoe UI', Avenir, Arial, sans-serif;

  --container-w: 1180px;
  --radius: 3px;
  --shadow-md: 0 14px 34px rgba(44, 43, 40, 0.16);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--cream);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  letter-spacing: 0.03em;
  font-weight: 700;
  margin: 0 0 0.5em;
  color: var(--charcoal);
}
p { margin: 0 0 1em; }
button { font-family: inherit; }

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--brown);
  color: var(--white);
  padding: 0.75em 1.25em;
  z-index: 200;
}
.skip-link:focus { left: 0; }

.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  font-size: 0.82rem;
  padding: 0.95em 1.8em;
  border-radius: var(--radius);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--charcoal);
  color: var(--cream);
}
.btn-primary:hover { background: #000; }
.btn-outline {
  border-color: var(--charcoal);
  color: var(--charcoal);
}
.btn-outline:hover { background: var(--charcoal); color: var(--cream); }
.btn-ghost {
  border-color: var(--brown);
  color: var(--brown-deep);
}
.btn-ghost:hover { background: var(--brown); color: var(--white); }
.btn-block { width: 100%; text-align: center; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

/* ---------- Section headings ---------- */
.section-eyebrow {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--brown);
  margin-bottom: 0.75em;
}
.section-eyebrow--light { color: var(--brown-pale); }
.section-title { font-size: clamp(1.6rem, 6vw, 2.4rem); }
.section-lead { max-width: 38em; color: #5a5650; font-size: 1.02rem; }

/* ==========================================================================
   Header / Nav
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--cream);
  border-bottom: 1px solid var(--cream-deep);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand { display: flex; align-items: center; gap: 0.6rem; height: 100%; }
.brand-icon { height: 34px; width: auto; }
.brand-word {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--charcoal);
  line-height: 1;
  display: flex;
  flex-direction: column;
  gap: 0.25em;
}
.brand-word small {
  font-size: 0.4rem;
  letter-spacing: 0.28em;
  color: var(--brown);
  font-weight: 700;
}
.brand-word--footer { color: var(--cream); }
.brand-word--footer small { color: var(--brown-pale); }

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 110;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--charcoal);
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.primary-nav {
  position: fixed;
  inset: 68px 0 0 0;
  background: var(--cream);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: stretch;
  padding: 2rem 1.25rem;
  transform: translateX(100%);
  transition: transform 0.3s ease;
  overflow-y: auto;
}
.primary-nav.is-open { transform: translateX(0); }
.primary-nav ul {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2rem;
}
.nav-link {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--charcoal);
  border-bottom: 1px solid var(--cream-deep);
  padding-bottom: 0.7rem;
  display: inline-block;
}
.nav-cta { align-self: flex-start; }

@media (min-width: 860px) {
  .nav-toggle { display: none; }
  .primary-nav {
    position: static;
    inset: auto;
    transform: none;
    flex-direction: row;
    align-items: center;
    background: transparent;
    padding: 0;
    overflow: visible;
  }
  .primary-nav ul {
    flex-direction: row;
    gap: 2.25rem;
    margin-bottom: 0;
    margin-right: 2.25rem;
  }
  .nav-link {
    font-size: 0.85rem;
    border-bottom: none;
    padding-bottom: 0;
    position: relative;
  }
  .nav-link::after {
    content: '';
    position: absolute;
    left: 0; right: 0; bottom: -6px;
    height: 2px;
    background: var(--brown);
    transform: scaleX(0);
    transition: transform 0.2s ease;
  }
  .nav-link:hover::after { transform: scaleX(1); }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: 3.5rem 4rem;
}
.hero-motif {
  position: absolute;
  right: -8%;
  top: 8%;
  width: 70%;
  max-width: 520px;
  opacity: 0.16;
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; }
.eyebrow {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--brown);
  margin-bottom: 1.1rem;
}
.hero-title {
  font-size: clamp(2.4rem, 11vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: 0.01em;
  margin-bottom: 0.5em;
  color: var(--charcoal);
}
.hero-sub {
  max-width: 32em;
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: #4d4a44;
  margin-bottom: 2rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }

@media (min-width: 860px) {
  .hero { padding-block: 6rem 6.5rem; }
}

/* ==========================================================================
   Services
   ========================================================================== */
.services { padding-block: 3.5rem; }
.service-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}
@media (min-width: 640px) {
  .service-cards { grid-template-columns: repeat(3, 1fr); }
}
.service-card {
  background: var(--white);
  border: 1px solid var(--cream-deep);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  box-shadow: var(--shadow-md);
}
.service-icon {
  display: inline-flex;
  width: 42px;
  height: 42px;
  color: var(--brown);
  margin-bottom: 1rem;
}
.service-icon svg { width: 100%; height: 100%; }
.service-card h3 { font-size: 1.2rem; margin-bottom: 0.4em; }
.service-card p { color: #5a5650; font-size: 0.95rem; margin-bottom: 0; }

@media (min-width: 860px) {
  .services { padding-block: 5.5rem; }
}

/* ==========================================================================
   Credibility / pull-quote
   ========================================================================== */
.credibility {
  position: relative;
  color: var(--cream);
  overflow: hidden;
}
.credibility-media { position: absolute; inset: 0; z-index: 0; }
.credibility-media img { width: 100%; height: 100%; object-fit: cover; }
.credibility::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(28, 25, 20, 0.88), rgba(28, 25, 20, 0.72));
  z-index: 1;
}
.credibility-inner { position: relative; z-index: 2; padding-block: 4rem; max-width: 42em; }
.pull-quote {
  margin: 0 0 1.25rem;
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 4.5vw, 2rem);
  line-height: 1.3;
  font-weight: 700;
  color: var(--white);
}
.credibility-sub { color: var(--cream-deep); font-size: 1rem; margin-bottom: 0; }

@media (min-width: 860px) {
  .credibility-inner { padding-block: 6.5rem; }
}

/* ==========================================================================
   Location
   ========================================================================== */
.location { padding-block: 3.5rem; }
.location-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}
@media (min-width: 860px) {
  .location-grid { grid-template-columns: 1fr 1fr; }
  .location { padding-block: 5.5rem; }
}
.location-media img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  aspect-ratio: 4 / 3;
  object-fit: cover;
  width: 100%;
}
.map-pin {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1.5rem;
  padding: 0.8em 1.2em;
  background: var(--white);
  border: 1px solid var(--cream-deep);
  border-radius: var(--radius);
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: 0.04em;
  font-size: 0.9rem;
}
.map-pin-icon { width: 18px; height: 24px; color: var(--brown); flex-shrink: 0; }
.map-pin-icon svg { width: 100%; height: 100%; }

/* ==========================================================================
   CTA strip
   ========================================================================== */
.cta-strip {
  background: linear-gradient(120deg, var(--brown-deep), var(--brown));
  padding-block: 3.5rem;
}
.cta-inner { text-align: center; max-width: 38em; margin-inline: auto; }
.cta-inner h2 {
  color: var(--white);
  font-size: clamp(1.5rem, 5vw, 2.1rem);
}
.cta-inner p { color: var(--cream-soft); margin-bottom: 1.5rem; }
.cta-inner .btn-primary { background: var(--charcoal); color: var(--cream); }
.cta-inner .btn-primary:hover { background: #000; }

@media (min-width: 860px) {
  .cta-strip { padding-block: 4.5rem; }
}

/* ==========================================================================
   Contact
   ========================================================================== */
.contact { padding-block: 3.5rem; }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}
@media (min-width: 860px) {
  .contact-grid { grid-template-columns: 0.85fr 1.15fr; }
  .contact { padding-block: 5.5rem; }
}
.contact-list { margin-top: 1.75rem; }
.contact-list li {
  border-top: 1px solid var(--cream-deep);
  padding-block: 1rem;
}
.contact-list li:last-child { border-bottom: 1px solid var(--cream-deep); }
.contact-label {
  display: block;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.78rem;
  color: var(--brown);
  margin-bottom: 0.3em;
}
.contact-list a { font-size: 1.1rem; }
.contact-list a:hover { color: var(--brown); }

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}
.contact-form {
  background: var(--white);
  border: 1px solid var(--cream-deep);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-md);
}
@media (min-width: 640px) {
  .contact-form { padding: 2.25rem; }
}
.form-row { margin-bottom: 1.15rem; }
.form-row--half {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.15rem;
}
@media (min-width: 480px) {
  .form-row--half { grid-template-columns: 1fr 1fr; }
}
label {
  display: block;
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.78rem;
  font-weight: 700;
  margin-bottom: 0.4em;
  color: var(--charcoal);
}
input, textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.75em 0.9em;
  border: 1.5px solid var(--cream-deep);
  border-radius: var(--radius);
  background: var(--cream);
  color: var(--ink);
}
input:focus, textarea:focus {
  outline: none;
  border-color: var(--brown);
  background: var(--white);
}
input:invalid[data-touched="true"], textarea:invalid[data-touched="true"] {
  border-color: var(--error);
}
.form-error {
  display: block;
  color: var(--error);
  font-size: 0.8rem;
  margin-top: 0.35em;
  min-height: 1.1em;
}
.form-status {
  margin-top: 1rem;
  font-weight: 600;
  text-align: center;
}
.form-status.is-success { color: var(--success); }
.form-status.is-error { color: var(--error); }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { background: var(--charcoal); color: #c9c4bb; }
.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
  padding-block: 3rem 2.25rem;
}
@media (min-width: 640px) {
  .footer-inner { grid-template-columns: 1.3fr 1fr 1fr; }
}
.footer-col h4 {
  color: var(--white);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.footer-col li { margin-bottom: 0.6em; }
.footer-col a:hover { color: var(--brown-pale); }

.footer-bottom { border-top: 1px solid #423f39; }
.footer-bottom-inner { padding-block: 1.25rem; font-size: 0.82rem; color: #938f86; }

/* ==========================================================================
   Back to top
   ========================================================================== */
.back-to-top {
  position: fixed;
  right: 1.1rem;
  bottom: 1.1rem;
  z-index: 90;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--charcoal);
  color: var(--cream);
  border: 1px solid var(--charcoal-soft);
  border-radius: 50%;
  cursor: pointer;
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease, background-color 0.2s ease;
}
.back-to-top svg { width: 19px; height: 19px; }
.back-to-top.is-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.back-to-top:hover { background: var(--brown-deep); }
@media (min-width: 700px) {
  .back-to-top { right: 1.75rem; bottom: 1.75rem; }
}