/* ============================================================
   NATIVA SUPPLY — DESIGN SYSTEM
   main.css  |  v2.0.0
   ============================================================ */

/* ── Custom Properties ── */
:root {
  --bg-primary:            #2d4a52;
  --bg-deep:               #1e333a;
  --accent:                #1D9E75;
  --accent-hover:          #4bbf97;
  --cream:                 #f4f1ec;
  --text-muted:            rgba(244,241,236,0.45);
  --text-muted-light:      rgba(244,241,236,0.55);
  --bg-light:              #f4f1ec;
  --text-dark:             #1e2a2d;
  --border-green:          rgba(29,158,117,0.2);
  --border-green-medium:   rgba(29,158,117,0.25);
  --border-green-strong:   rgba(29,158,117,0.6);
  --border-green-dim:      rgba(29,158,117,0.18);
  --border-green-footer:   rgba(29,158,117,0.15);
  --font-heading:          'Tenor Sans', serif;
  --font-body:             'Jost', sans-serif;
  --section-pad:           8rem;
  --container-max:         1200px;
  --container-pad:         2rem;
  --nav-height:            80px;
  --transition-base:       0.3s ease;
  --transition-smooth:     0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

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

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

body {
  font-family: var(--font-body);
  font-weight: 300;
  background-color: var(--bg-deep);
  color: var(--cream);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

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

/* Accessibility: screen-reader-only */
.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;
}

/* ── Typography helpers ── */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background-color: var(--accent);
  flex-shrink: 0;
}

/* ── Container ── */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.95rem 2rem;
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--cream);
  border: 1px solid var(--accent);
}
.btn-primary:hover,
.btn-primary:focus-visible {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-outline {
  background-color: transparent;
  color: var(--cream);
  border: 1px solid var(--border-green);
}
.btn-outline:hover,
.btn-outline:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Fade-up animation ── */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity var(--transition-smooth),
    transform var(--transition-smooth);
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-up-delay-1 { transition-delay: 0.1s; }
.fade-up-delay-2 { transition-delay: 0.2s; }
.fade-up-delay-3 { transition-delay: 0.3s; }
.fade-up-delay-4 { transition-delay: 0.4s; }
.fade-up-delay-5 { transition-delay: 0.5s; }

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(30,51,58,0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-green);
  transition: padding var(--transition-base), background-color var(--transition-base);
  padding: 1rem 0;
}

.nav.scrolled {
  padding: 0.6rem 0;
  background-color: rgba(30,51,58,0.97);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

/* Logo — image */
.logo {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.logo-img {
  height: 68px;
  width: auto;
  object-fit: contain;
  transition: opacity var(--transition-base);
}

.logo:hover .logo-img,
.logo:focus-visible .logo-img {
  opacity: 0.85;
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(244,241,236,0.5);
  transition: color var(--transition-base);
}
.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--cream);
}

.nav-contact-btn {
  font-size: 0.68rem;
  padding: 0.7rem 1.5rem;
  border: 1px solid var(--accent);
  color: var(--cream);
  background: transparent;
  font-family: var(--font-body);
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
}
.nav-contact-btn:hover,
.nav-contact-btn:focus-visible {
  background-color: var(--accent);
  color: var(--cream);
}

/* Mobile toggle */
.nav-mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
}
.nav-mobile-toggle span {
  display: block;
  width: 24px;
  height: 1px;
  background-color: var(--cream);
  transition: all var(--transition-base);
}

/* Mobile menu */
.nav-mobile-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: rgba(30,51,58,0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-green);
  padding: 2rem;
}
.nav-mobile-menu[hidden] { display: none; }
.nav-mobile-menu:not([hidden]) { display: block; }

.nav-mobile-menu ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}
.nav-mobile-menu a {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(244,241,236,0.6);
  transition: color var(--transition-base);
}
.nav-mobile-menu a:hover { color: var(--cream); }

/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  min-height: 100vh;
  background-color: var(--bg-deep);
  display: flex;
  flex-direction: column;
  position: relative;
  padding-top: var(--nav-height);
}

.hero-grid {
  display: grid;
  grid-template-columns: 55% 45%;
  flex: 1;
  align-items: center;
  gap: 3rem;
  padding: 4rem 0 5rem;
}

.hero-left { max-width: 560px; }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}
.hero-eyebrow::before {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background-color: var(--accent);
}

.hero-h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 4.4vw, 4.4rem);
  font-weight: 400;
  line-height: 1.1;
  color: var(--cream);
  margin-bottom: 1.5rem;
}
.hero-h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero-subtext {
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 300;
  color: var(--text-muted-light);
  max-width: 380px;
  line-height: 1.65;
  margin-bottom: 2.5rem;
}

.hero-ctas {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.hero-ghost-link {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  color: rgba(244,241,236,0.6);
  transition: color var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.hero-ghost-link:hover { color: var(--accent); }

/* Hero canvas */
.hero-canvas-wrap {
  position: relative;
  width: 100%;
  height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
}
#heroCanvas {
  width: 100%;
  height: 100%;
}

/* Stats bar */
.hero-stats {
  border-top: 1px solid var(--border-green-dim);
  padding: 2rem 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.stat-item {
  display: flex;
  align-items: baseline;
  gap: 1rem;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 400;
  color: var(--accent);
  line-height: 1;
  flex-shrink: 0;
}

.stat-label {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ============================================================
   MISSION SECTION
   ============================================================ */
.mission {
  background-color: var(--bg-light);
  padding: var(--section-pad) 0;
}

.mission-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.mission-h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 3vw, 3rem);
  font-weight: 400;
  line-height: 1.15;
  color: var(--text-dark);
  margin-bottom: 2rem;
}

.mission-blockquote {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-style: italic;
  line-height: 1.5;
  color: var(--bg-primary);
  border-left: 2px solid var(--accent);
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
}

.mission-body {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 300;
  color: rgba(30,42,45,0.65);
  line-height: 1.7;
}

.mission-blocks {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mission-block { padding: 2.5rem; }

.mission-block-a { background-color: var(--bg-primary); }

.mission-block-b {
  background-color: var(--bg-deep);
  border: 1px solid var(--border-green-medium);
}

.mission-block-tag {
  font-family: var(--font-body);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.mission-block-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 400;
  line-height: 1.3;
  color: var(--cream);
}
.mission-block-b .mission-block-title { color: var(--accent); }

.mission-block-sub {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 300;
  color: var(--text-muted);
  margin-top: 0.5rem;
  line-height: 1.5;
}

/* ============================================================
   PROCESS SECTION
   ============================================================ */
.process {
  background-color: var(--bg-deep);
  padding: var(--section-pad) 0;
}

.process-header { margin-bottom: 4rem; }

.process-h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 2.8vw, 2.8rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--cream);
  margin-top: 1rem;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
}

.process-step {
  padding: 2.5rem 2rem;
  border-left: 1px solid var(--border-green-dim);
  position: relative;
  transition: background-color 0.4s ease;
}
.process-step:first-child { border-left: none; }
.process-step:hover { background-color: rgba(29,158,117,0.04); }

.step-number {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 400;
  color: rgba(29,158,117,0.1);
  line-height: 1;
  margin-bottom: 1.5rem;
  display: block;
}

.step-icon {
  width: 56px;
  height: 56px;
  margin-bottom: 1.25rem;
  border: 1px solid var(--border-green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: box-shadow 0.4s ease, border-color 0.4s ease;
}
.process-step:hover .step-icon {
  border-color: var(--accent);
  box-shadow: 0 0 20px rgba(29,158,117,0.15);
}

.step-icon svg { width: 26px; height: 26px; }

.step-name {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cream);
  margin-bottom: 0.6rem;
}

.step-desc {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ============================================================
   MATERIALS SECTION
   ============================================================ */
.materials {
  background-color: var(--bg-primary);
  padding: var(--section-pad) 0;
}

.materials-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.materials-cards {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.material-card {
  background-color: rgba(30,51,58,0.45);
  padding: 2rem 2.25rem;
  border-left: 2px solid transparent;
  transition: border-color var(--transition-base), background-color var(--transition-base);
}
.material-card:hover { background-color: rgba(30,51,58,0.65); }

.material-card.featured {
  background-color: rgba(29,158,117,0.08);
  border-left-color: var(--accent);
}

.material-card-tag {
  font-family: var(--font-body);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.material-card-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--cream);
  margin-bottom: 0.4rem;
  line-height: 1.3;
}
.material-card.featured .material-card-title { color: var(--accent); font-size: 1.4rem; }

.material-card-desc {
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.6;
}

.material-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.pill {
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  padding: 0.35rem 0.8rem;
  border: 1px solid var(--border-green);
  color: var(--text-muted-light);
}

.materials-h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 2.6vw, 2.6rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--cream);
  margin-bottom: 1.5rem;
}

.materials-body {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1.2rem;
}

.materials-cta { margin-top: 2rem; }

/* ============================================================
   QUALITY SECTION
   ============================================================ */
.quality {
  background-color: var(--bg-light);
  padding: var(--section-pad) 0;
}

.quality-header { margin-bottom: 3.5rem; }

.quality-h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 2.6vw, 2.6rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--text-dark);
  margin-top: 1rem;
}

.quality-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background-color: #e8e4dc;
}

.quality-card {
  background-color: var(--bg-light);
  padding: 2.5rem;
  transition: background-color var(--transition-base);
}
.quality-card:hover { background-color: #eae7e1; }

.quality-metric {
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 400;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.quality-title {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dark);
  margin-bottom: 1rem;
}

.quality-desc {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 300;
  color: rgba(30,42,45,0.6);
  line-height: 1.65;
}

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact {
  background-color: var(--bg-deep);
  padding: var(--section-pad) 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.contact-h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 2.8vw, 2.8rem);
  font-weight: 400;
  line-height: 1.2;
  color: var(--cream);
  margin-bottom: 1.25rem;
}
.contact-h2 em { font-style: italic; color: var(--accent); }

.contact-subtext {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  font-style: normal;
}

.contact-info-item {
  display: flex;
  align-items: center;
  gap: 0.875rem;
}
.contact-info-item svg { flex-shrink: 0; opacity: 0.5; }

.contact-info-text {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 300;
  color: rgba(244,241,236,0.6);
}

.contact-info-link { transition: color var(--transition-base); }
.contact-info-link:hover { color: var(--accent); }

/* Form */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-family: var(--font-body);
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.form-group input,
.form-group select,
.form-group textarea {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 300;
  color: var(--cream);
  background-color: rgba(255,255,255,0.05);
  border: 1px solid var(--border-green);
  padding: 0.85rem 1rem;
  outline: none;
  transition: border-color var(--transition-base);
  width: 100%;
  border-radius: 0;
  -webkit-appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--border-green-strong);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(244,241,236,0.25);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='rgba(244,241,236,0.4)' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  cursor: pointer;
}

.form-group select option {
  background-color: var(--bg-deep);
  color: var(--cream);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* Form validation */
.form-error {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 300;
  color: #e05555;
  display: none;
}
.form-error.visible { display: block; }

.form-submit { position: relative; }

.form-submit-btn {
  width: 100%;
  padding: 1rem 2rem;
  background-color: var(--accent);
  color: var(--cream);
  border: 1px solid var(--accent);
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition-base);
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}
.form-submit-btn:hover { background-color: var(--accent-hover); border-color: var(--accent-hover); }
.form-submit-btn:disabled { opacity: 0.7; cursor: not-allowed; }

/* Spinner */
.btn-spinner {
  width: 16px;
  height: 16px;
  border: 1px solid rgba(244,241,236,0.3);
  border-top-color: var(--cream);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: none;
}
.form-submit-btn.loading .btn-spinner { display: block; }
.form-submit-btn.loading .btn-text { display: none; }

@keyframes spin { to { transform: rotate(360deg); } }

/* Form success */
.form-success {
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 2rem;
  gap: 1.5rem;
}
.form-success:not([hidden]) { display: flex; }

.form-success-icon {
  width: 64px;
  height: 64px;
  border: 1px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.form-success-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--cream);
}

.form-success-message {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 300;
  color: var(--text-muted);
  max-width: 320px;
  line-height: 1.6;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--border-green-footer);
  padding: 2rem 0;
  background-color: var(--bg-deep);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-copy {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 300;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.footer-links a {
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 300;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(244,241,236,0.4);
  transition: color var(--transition-base);
}
.footer-links a:hover { color: var(--cream); }

/* ============================================================
   RESPONSIVE — Tablet
   ============================================================ */
@media (max-width: 1024px) {
  :root { --section-pad: 5rem; }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 3rem 0 4rem;
  }

  .hero-canvas-wrap { height: 380px; order: -1; }
  .hero-left { max-width: 100%; }
  .hero-subtext { max-width: 100%; }

  .mission-grid,
  .materials-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .process-step:nth-child(3) { border-left: none; }
  .process-step:nth-child(n+3) { border-top: 1px solid var(--border-green-dim); }

  .quality-grid { grid-template-columns: 1fr; }

  .nav-links { display: none; }
  .nav-contact-btn { display: none; }
  .nav-mobile-toggle { display: flex; }

  .logo-img { height: 44px; }
}

/* ── Mobile ── */
@media (max-width: 640px) {
  :root {
    --section-pad: 3.5rem;
    --container-pad: 1.25rem;
  }

  .hero-h1 { font-size: 2.2rem; }
  .hero-canvas-wrap { height: 300px; }

  .stats-grid { grid-template-columns: 1fr; gap: 1.5rem; }

  .process-grid { grid-template-columns: 1fr; }
  .process-step {
    border-left: none;
    border-top: 1px solid var(--border-green-dim);
    padding: 2rem 1.5rem;
  }
  .process-step:first-child { border-top: none; }

  .form-row { grid-template-columns: 1fr; }
  .hero-ctas { flex-direction: column; align-items: flex-start; }

  .footer-inner { flex-direction: column; text-align: center; }
  .footer-links { flex-wrap: wrap; justify-content: center; gap: 1rem; }

  .mission-block { padding: 2rem 1.5rem; }
  .quality-card { padding: 2rem 1.5rem; }
  .material-card { padding: 1.75rem 1.5rem; }

  .logo-img { height: 38px; }
}

/* ── High-DPI ── */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 2dppx) {
  .logo-img { image-rendering: -webkit-optimize-contrast; }
}

/* ============================================================
   ACCESSIBILITY
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .fade-up { opacity: 1; transform: none; }
}

/* Focus styles — visible keyboard navigation */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* Colour contrast boost on reduced-data */
@media (prefers-contrast: more) {
  :root {
    --text-muted: rgba(244,241,236,0.75);
    --text-muted-light: rgba(244,241,236,0.8);
    --border-green: rgba(29,158,117,0.5);
  }
}

/* ============================================================
   SERVICES SECTION
   ============================================================ */
.services {
  padding: var(--section-pad) 0;
  background-color: var(--bg-primary);
}

.services-header {
  margin-bottom: 4rem;
}

.services-h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 2.6vw, 2.6rem);
  font-weight: 400;
  color: var(--cream);
  margin-top: 1rem;
  line-height: 1.2;
}

.services-intro {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 520px;
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}

.service-card {
  background-color: var(--bg-deep);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  transition: background-color var(--transition-base);
}

.service-card:hover {
  background-color: rgba(30,51,58,0.85);
}

.service-card-buyer {
  background-color: rgba(30,51,58,0.6);
}

.service-tag {
  font-family: var(--font-body);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
}

.service-tag-buyer {
  color: var(--text-muted);
}

.service-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--cream);
  line-height: 1.25;
  margin: 0;
}

.service-desc {
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 300;
  color: var(--text-muted);
  line-height: 1.65;
  margin: 0;
}

.service-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  flex: 1;
}

.service-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 300;
  color: var(--text-muted-light);
  line-height: 1.5;
}

.service-list-icon {
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.service-cta {
  align-self: flex-start;
  margin-top: 0.5rem;
}

@media (max-width: 768px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
}