/* ============================================================
   Support Dun — Integrated Systems Design & Technical Services
   Palette: Deep Olive-Green + Cream + Bronze-Gold
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  --color-base: #23301F;
  --color-darker: #1C2617;
  --color-surface: #2B3A26;
  --color-surface-light: #35472E;
  --color-text: #F5F1E6;
  --color-muted: #A6B29B;
  --color-muted-light: #C7CDBE;
  --color-accent: #C9A227;
  --color-accent-bright: #E0BC3E;
  --color-accent-deep: #B8860B;
  --color-border: rgba(245, 241, 230, 0.12);
  --color-border-light: rgba(245, 241, 230, 0.08);
  --color-danger: #E05555;
  --color-success: #6BBF6B;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
  --font-display: Georgia, "Times New Roman", Times, serif;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.30);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.40);
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.4s ease;
  --max-width: 1240px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  background: var(--color-base);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

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

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ============================================================
   HEADER — Sticky, translucent
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(35, 48, 31, 0.94);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  height: 72px;
}

/* --- Logo --- */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  font-size: 24px;
  color: var(--color-accent);
  transition: color var(--transition-base);
}

.logo:hover .logo-icon {
  color: var(--color-accent-bright);
}

.logo-text {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.02em;
}

/* --- Main Nav --- */
.main-nav {
  display: flex;
}

.nav-list {
  display: flex;
  gap: 4px;
}

.nav-link {
  display: inline-block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-muted);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text);
  background: var(--color-surface);
}

.nav-link.active {
  color: var(--color-accent);
}

/* --- Hamburger --- */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  gap: 5px;
  padding: 0;
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

/* ============================================================
   HERO — Full-height with angled bottom
   ============================================================ */
.hero {
  position: relative;
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--color-base);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 20%, rgba(201, 162, 39, 0.10), transparent 65%),
              radial-gradient(ellipse at 70% 80%, rgba(184, 134, 11, 0.08), transparent 60%),
              var(--color-darker);
  opacity: 0.92;
}

.hero-angled-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 80px;
  background: var(--color-base);
  clip-path: polygon(0 100%, 100% 0%, 100% 100%, 0 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 880px;
  margin: 0 auto;
  padding: 80px 28px 120px;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: 20px;
  padding: 6px 18px;
  margin-bottom: 28px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 5.5vw, 56px);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text);
  margin-bottom: 24px;
  letter-spacing: -0.01em;
}

.hero-subtitle {
  font-size: 17px;
  line-height: 1.75;
  color: var(--color-muted);
  max-width: 700px;
  margin: 0 auto 36px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-bottom: 52px;
}

.cta-primary {
  display: inline-block;
  padding: 14px 34px;
  font-size: 15px;
  font-weight: 600;
  color: #1C2617;
  background: var(--color-accent);
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.cta-primary:hover {
  background: var(--color-accent-bright);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.cta-secondary {
  display: inline-block;
  padding: 14px 34px;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
}

.cta-secondary:hover {
  border-color: var(--color-accent);
  background: rgba(201, 162, 39, 0.08);
  transform: translateY(-1px);
}

/* --- Hero Stats Preview --- */
.hero-stats-preview {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 40px;
}

.hero-stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.hero-stat-number {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 700;
  color: var(--color-accent);
}

.hero-stat-label {
  font-size: 13px;
  color: var(--color-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ============================================================
   SECTION HEADERS (shared)
   ============================================================ */
.section-header {
  text-align: center;
  padding: 0 20px;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.section-tag--light {
  color: var(--color-accent-bright);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.section-title--light {
  color: var(--color-text);
}

.section-intro {
  max-width: 720px;
  margin: 0 auto;
  font-size: 16px;
  color: var(--color-muted);
}

.section-intro--light {
  color: var(--color-muted-light);
}

/* ============================================================
   SERVICES
   ============================================================ */
.services {
  padding: 100px 28px;
}

.services-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(201, 162, 39, 0.25);
}

.service-icon {
  font-size: 32px;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.service-card-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.service-card-text {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 20px;
  line-height: 1.65;
}

.service-card-list {
  list-style: none;
}

.service-card-list li {
  font-size: 14px;
  color: var(--color-muted);
  padding: 6px 0 6px 20px;
  position: relative;
  line-height: 1.5;
}

.service-card-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent-deep);
}

/* ============================================================
   ABOUT
   ============================================================ */
.about {
  position: relative;
  padding: 100px 28px;
  overflow: hidden;
}

.about-backdrop {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(201, 162, 39, 0.04), transparent 60%),
              var(--color-darker);
}

.about-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-width);
  margin: 0 auto;
}

.about-body {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 60px;
  align-items: start;
}

.about-text-block {
  color: var(--color-muted);
}

.about-lead {
  font-size: 17px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 20px;
  line-height: 1.75;
}

.about-text-block p {
  margin-bottom: 16px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-muted);
}

.about-text-block p:last-child {
  margin-bottom: 0;
}

.about-highlights {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.highlight-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.highlight-number {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-accent);
}

.highlight-label {
  font-size: 13px;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ============================================================
   PROCESS
   ============================================================ */
.process {
  padding: 100px 28px;
}

.process-checklist {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.process-phase {
  display: flex;
  gap: 32px;
  padding: 32px 0;
  position: relative;
}

.process-phase:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 23px;
  top: 70px;
  bottom: 0;
  width: 1px;
  background: var(--color-border);
}

.phase-marker {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  width: 48px;
}

.phase-number {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-accent);
  width: 48px;
  height: 48px;
  border: 1px solid var(--color-accent-deep);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  position: relative;
  z-index: 1;
}

.phase-dot {
  display: none;
}

.phase-body {
  flex: 1;
  padding-top: 4px;
}

.phase-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
}

.phase-description {
  font-size: 15px;
  color: var(--color-muted);
  margin-bottom: 16px;
  line-height: 1.65;
}

.phase-checklist-items {
  list-style: none;
}

.phase-checklist-items li {
  font-size: 14px;
  color: var(--color-muted);
  padding: 5px 0 5px 20px;
  position: relative;
}

.phase-checklist-items li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent-deep);
}

/* ============================================================
   INDUSTRIES
   ============================================================ */
.industries {
  padding: 100px 28px;
}

.industries-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.industry-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.industry-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(201, 162, 39, 0.25);
}

.industry-icon {
  font-size: 30px;
  color: var(--color-accent);
  display: block;
  margin-bottom: 16px;
}

.industry-title {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 10px;
}

.industry-text {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.6;
}

/* ============================================================
   STATS
   ============================================================ */
.stats {
  padding: 100px 28px;
  background: var(--color-darker);
}

.stats-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.stats-badge {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 48px;
  padding: 8px 20px;
  border: 1px solid var(--color-accent-deep);
  border-radius: 20px;
  background: rgba(201, 162, 39, 0.06);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.stat-value {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  color: var(--color-accent);
}

.stat-label {
  font-size: 13px;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-align: center;
  line-height: 1.4;
}

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials {
  padding: 100px 28px;
}

.testimonials-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.testimonial-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.testimonial-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.testimonial-rating {
  font-size: 18px;
  color: var(--color-accent);
  margin-bottom: 16px;
  letter-spacing: 2px;
}

.testimonial-text {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 24px;
  flex: 1;
  font-style: italic;
}

.testimonial-author {
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.testimonial-author strong {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
}

.testimonial-author span {
  font-size: 13px;
  color: var(--color-muted);
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  padding: 100px 28px;
  background: var(--color-darker);
}

.contact-layout {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 48px;
  align-items: start;
}

/* --- Contact Info Panel --- */
.contact-info-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
}

.contact-info-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 4px;
}

.contact-info-subtitle {
  font-size: 14px;
  color: var(--color-muted);
  margin-bottom: 28px;
}

.contact-detail {
  padding: 14px 0;
  border-top: 1px solid var(--color-border-light);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.contact-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.contact-value {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.5;
}

.contact-value a {
  color: var(--color-muted-light);
  transition: color var(--transition-fast);
}

.contact-value a:hover {
  color: var(--color-accent-bright);
}

/* --- Contact Form Panel --- */
.contact-form-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group--full {
  margin-bottom: 20px;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-muted-light);
  letter-spacing: 0.03em;
}

.form-input {
  padding: 12px 16px;
  font-size: 15px;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-darker);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input::placeholder {
  color: #6B7A63;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.15);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23A6B29B' stroke-width='1.5' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
  cursor: pointer;
}

.form-select option {
  background: var(--color-darker);
  color: var(--color-text);
}

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

.form-submit {
  display: inline-block;
  width: 100%;
  padding: 15px 32px;
  font-size: 16px;
  font-weight: 600;
  font-family: var(--font-sans);
  color: #1C2617;
  background: var(--color-accent);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.form-submit:hover {
  background: var(--color-accent-bright);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.form-note {
  margin-top: 16px;
  font-size: 12px;
  color: #6B7A63;
  text-align: center;
  line-height: 1.5;
}

/* --- Form validation states --- */
.form-input:user-invalid {
  border-color: var(--color-danger);
}

.form-input:user-invalid:focus {
  box-shadow: 0 0 0 3px rgba(224, 85, 85, 0.15);
}

.form-input:user-valid:not(:placeholder-shown) {
  border-color: var(--color-success);
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-darker);
  border-top: 1px solid var(--color-border);
  padding: 72px 28px 36px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-brand {
  margin-bottom: 48px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--color-border);
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.footer-logo .logo-icon {
  font-size: 22px;
  color: var(--color-accent);
}

.footer-logo .logo-text {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
}

.footer-tagline {
  font-size: 14px;
  color: var(--color-muted);
  max-width: 480px;
  line-height: 1.6;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-bottom: 48px;
}

.footer-col-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col li,
.footer-col a {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.5;
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--color-accent-bright);
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 28px;
  text-align: center;
}

.footer-bottom p {
  font-size: 12px;
  color: #6B7A63;
  line-height: 1.6;
}

/* ============================================================
   RESPONSIVE — 1024px
   ============================================================ */
@media (max-width: 1024px) {
  .services-grid,
  .industries-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-body {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-highlights {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .highlight-item {
    flex: 1;
    min-width: 160px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
    max-width: 600px;
  }

  .contact-layout {
    grid-template-columns: 1fr;
    max-width: 640px;
  }
}

/* ============================================================
   RESPONSIVE — 768px
   ============================================================ */
@media (max-width: 768px) {
  .services-grid,
  .industries-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-links {
    grid-template-columns: 1fr 1fr;
  }

  .hero-title {
    font-size: clamp(28px, 6vw, 40px);
  }

  .hero-stats-preview {
    gap: 28px;
  }

  .process-phase {
    gap: 20px;
  }

  .phase-marker {
    width: 40px;
  }

  .phase-number {
    width: 40px;
    height: 40px;
    font-size: 17px;
  }

  .process-phase:not(:last-child)::after {
    left: 19px;
  }

  /* --- Hamburger menu --- */
  .hamburger {
    display: flex;
  }

  .main-nav {
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--color-darker);
    border-bottom: 1px solid var(--color-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
    display: block;
  }

  .main-nav.open {
    max-height: 480px;
  }

  .nav-list {
    flex-direction: column;
    padding: 16px 28px 24px;
    gap: 2px;
  }

  .nav-link {
    display: block;
    padding: 12px 16px;
    font-size: 16px;
    border-radius: var(--radius-md);
  }
}

/* ============================================================
   RESPONSIVE — 520px
   ============================================================ */
@media (max-width: 520px) {
  .header-inner {
    padding: 0 16px;
  }

  .logo-text {
    font-size: 18px;
  }

  .hero-content {
    padding: 60px 20px 100px;
  }

  .hero-cta-group {
    flex-direction: column;
    align-items: stretch;
  }

  .cta-primary,
  .cta-secondary {
    text-align: center;
  }

  .hero-stats-preview {
    flex-direction: column;
    gap: 20px;
  }

  .hero-angled-bottom {
    height: 50px;
  }

  .services,
  .about,
  .process,
  .industries,
  .stats,
  .testimonials,
  .contact {
    padding: 70px 20px;
  }

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

  .about-highlights {
    flex-direction: column;
  }

  .footer-links {
    grid-template-columns: 1fr;
  }

  .contact-form-panel {
    padding: 28px 20px;
  }

  .contact-info-panel {
    padding: 28px 20px;
  }

  .contact-layout {
    gap: 32px;
  }

  .process-phase {
    gap: 16px;
  }

  .phase-marker {
    width: 34px;
  }

  .phase-number {
    width: 34px;
    height: 34px;
    font-size: 15px;
  }

  .process-phase:not(:last-child)::after {
    left: 16px;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .section-title {
    font-size: 24px;
  }

  .testimonial-card {
    padding: 24px 20px;
  }
}