/* ============================================
   STN Stahlbau und Metallbau Nord GmbH
   Design System & Styles
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Roboto+Slab:wght@400;700&display=swap');

/* --- CSS Custom Properties --- */
:root {
  /* Brand Colors — derived from logo (teal + gold) */
  --color-primary: #1a7a6d;
  --color-primary-dark: #135f55;
  --color-primary-light: #22a08f;
  --color-accent: #e8a820;
  --color-accent-dark: #c88d15;
  --color-accent-light: #f0c04a;

  /* Neutrals */
  --color-bg: #ffffff;
  --color-bg-alt: #f4f6f8;
  --color-bg-dark: #0f1a1e;
  --color-text: #1a1a2e;
  --color-text-light: #555b6e;
  --color-text-muted: #8a8fa3;
  --color-border: #e0e4ea;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Roboto Slab', Georgia, serif;

  /* Spacing */
  --section-padding: 80px 0;
  --container-width: 1200px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);

  /* Transitions */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  text-decoration: none;
  color: var(--color-primary);
  transition: var(--transition);
}

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

ul,
ol {
  list-style: none;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Utility --- */
.section-title {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  margin-top: 12px;
  border-radius: 2px;
}

.section-title.centered {
  text-align: center;
}

.section-title.centered::after {
  margin-left: auto;
  margin-right: auto;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-light);
  max-width: 650px;
  line-height: 1.8;
}

.section-subtitle.centered {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.3px;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-transform: uppercase;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  box-shadow: 0 4px 15px rgba(26, 122, 109, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(26, 122, 109, 0.4);
  color: #fff;
}

.btn-accent {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-dark));
  color: #fff;
  box-shadow: 0 4px 15px rgba(232, 168, 32, 0.3);
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(232, 168, 32, 0.4);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  color: #fff;
}

/* ============================================
   TOPBAR
   ============================================ */
.topbar {
  background: var(--color-bg-dark);
  padding: 8px 0;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}

.topbar .container {
  display: flex;
  justify-content: flex-end;
  gap: 24px;
}

.topbar a {
  color: rgba(255, 255, 255, 0.7);
  display: flex;
  align-items: center;
  gap: 6px;
}

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

.topbar-icon {
  font-size: 1rem;
}

/* ============================================
   HEADER / NAV
   ============================================ */
.header {
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0;
  padding-bottom: 0;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo svg {
  width: 44px;
  height: 44px;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
}

.logo-text span {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--color-text-light);
  letter-spacing: 1px;
  text-transform: uppercase;
}

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

.nav-list li {
  position: relative;
}

.nav-list a {
  display: block;
  padding: 24px 16px;
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
}

.nav-list a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 3px;
  background: var(--color-accent);
  transform: scaleX(0);
  transition: var(--transition);
  border-radius: 2px 2px 0 0;
}

.nav-list a:hover::after,
.nav-list a.active::after {
  transform: scaleX(1);
}

.nav-list a:hover {
  color: var(--color-primary);
}

/* Dropdown */
.nav-list .dropdown {
  position: relative;
}

.nav-list .dropdown>a::before {
  content: '▾';
  margin-left: 4px;
  font-size: 0.7rem;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: #fff;
  box-shadow: var(--shadow-lg);
  border-radius: 0 0 8px 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: var(--transition);
  z-index: 100;
  overflow: hidden;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu a {
  padding: 12px 20px;
  font-size: 0.85rem;
  text-transform: none;
  border-bottom: 1px solid var(--color-border);
}

.dropdown-menu a:last-child {
  border-bottom: none;
}

.dropdown-menu a::after {
  display: none;
}

.dropdown-menu a:hover {
  background: var(--color-bg-alt);
  color: var(--color-primary);
}

/* Mobile Nav */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition);
  border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   HERO SLIDER
   ============================================ */
.hero {
  position: relative;
  height: 70vh;
  min-height: 500px;
  max-height: 700px;
  overflow: hidden;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1s ease;
}

.hero-slide.active {
  opacity: 1;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg,
      rgba(15, 26, 30, 0.75) 0%,
      rgba(26, 122, 109, 0.4) 50%,
      rgba(15, 26, 30, 0.6) 100%);
}

.hero-content {
  position: absolute;
  bottom: 15%;
  left: 0;
  right: 0;
  z-index: 2;
}

.hero-content .container {
  max-width: 700px;
  margin: 0;
  margin-left: 8%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(232, 168, 32, 0.9);
  color: #fff;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
  backdrop-filter: blur(4px);
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.hero p {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 28px;
  line-height: 1.8;
  max-width: 550px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Slider dots */
.hero-dots {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 10px;
  z-index: 3;
}

.hero-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.4);
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

.hero-dot.active {
  background: var(--color-accent);
  border-color: #fff;
  transform: scale(1.15);
}

/* ============================================
   INTRO SECTION
   ============================================ */
.intro {
  padding: var(--section-padding);
  background: var(--color-bg);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.intro-text h2 {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.intro-text p {
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.intro-text ul {
  margin: 16px 0 24px;
}

.intro-text ul li {
  padding: 6px 0;
  padding-left: 24px;
  position: relative;
  color: var(--color-text-light);
}

.intro-text ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
}

.intro-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.intro-images img {
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  object-fit: cover;
  height: 200px;
  width: 100%;
}

.intro-images img:hover {
  transform: scale(1.03);
  box-shadow: var(--shadow-lg);
}

.intro-images img:first-child {
  grid-column: 1 / -1;
  height: 260px;
}

/* ============================================
   ABOUT SECTION (Schweißtechnik)
   ============================================ */
.about-section {
  padding: var(--section-padding);
  background: var(--color-bg-alt);
}

.about-grid {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: 50px;
  align-items: start;
}

.about-images {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr 1fr;
  gap: 12px;
}

.about-images img {
  border-radius: 10px;
  object-fit: cover;
  width: 100%;
  height: 140px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.about-images img:hover {
  box-shadow: var(--shadow-md);
  transform: scale(1.02);
}

.about-content h2 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

.about-content h3 {
  font-size: 1.1rem;
  color: var(--color-text);
  margin-bottom: 16px;
  font-weight: 600;
}

.about-content p {
  color: var(--color-text-light);
  margin-bottom: 14px;
  font-size: 0.95rem;
}

.about-content .highlight {
  font-weight: 600;
  color: var(--color-primary);
}

.services-mini-list {
  margin: 12px 0 20px;
}

.services-mini-list li {
  padding: 4px 0;
  padding-left: 20px;
  position: relative;
  font-size: 0.95rem;
  color: var(--color-text-light);
}

.services-mini-list li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

/* ============================================
   REFERENCES / PROJECTS
   ============================================ */
.references {
  padding: var(--section-padding);
  background: var(--color-bg);
}

.ref-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 40px;
}

.ref-carousel {
  position: relative;
  overflow: hidden;
}

.ref-track {
  display: flex;
  gap: 24px;
  transition: transform 0.5s ease;
}

.ref-card {
  min-width: calc(33.333% - 16px);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  background: #fff;
}

.ref-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.ref-card img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.ref-card-body {
  padding: 16px 20px;
}

.ref-card-body h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
}

.ref-card-body p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.ref-nav {
  display: flex;
  gap: 8px;
}

.ref-nav button {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  background: #fff;
  cursor: pointer;
  font-size: 1.1rem;
  color: var(--color-text);
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.ref-nav button:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* ============================================
   SERVICES / SPECIALIZATIONS
   ============================================ */
.specializations {
  padding: var(--section-padding);
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, #162a30 100%);
  color: #fff;
}

.specializations .section-title {
  color: #fff;
}

.specializations .section-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

.spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  margin-top: 40px;
}

.spec-list {
  margin-bottom: 32px;
}

.spec-list h3 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.spec-list ul li {
  padding: 8px 0;
  padding-left: 20px;
  position: relative;
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.8);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.spec-list ul li::before {
  content: '›';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
  font-size: 1.1rem;
}

.spec-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  padding: 32px 28px;
  transition: var(--transition);
  backdrop-filter: blur(4px);
}

.spec-card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(232, 168, 32, 0.3);
  transform: translateY(-4px);
}

.spec-card h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  color: var(--color-accent);
  margin-bottom: 14px;
}

.spec-card p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.7;
  margin-bottom: 16px;
}

.spec-card .btn {
  padding: 10px 24px;
  font-size: 0.85rem;
}

/* ============================================
   CERTIFICATIONS BAR
   ============================================ */
.certifications {
  padding: 40px 0;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.cert-grid {
  display: flex;
  justify-content: center;
  gap: 48px;
  align-items: center;
  flex-wrap: wrap;
}

.cert-item {
  text-align: center;
}

.cert-item .cert-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.cert-item .cert-value {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 12px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}

.footer-col p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 12px;
}

.footer-col ul li {
  padding: 6px 0;
}

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--color-accent);
  padding-left: 4px;
}

.footer-contact li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 8px 0;
  font-size: 0.9rem;
}

.footer-contact .icon {
  color: var(--color-accent);
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.footer-brand svg {
  width: 40px;
  height: 40px;
}

.footer-brand .name {
  font-family: var(--font-heading);
  font-weight: 700;
  color: #fff;
  font-size: 1rem;
}

.footer-bottom {
  margin-top: 40px;
  padding: 20px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.4);
}

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

/* ============================================
   PAGE HERO (sub-pages)
   ============================================ */
.page-hero {
  height: 300px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('../images/kreis.png') right bottom no-repeat;
  background-size: 400px;
  opacity: 0.08;
}

.page-hero h1 {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  color: #fff;
  text-align: center;
  position: relative;
  z-index: 1;
}

.page-hero .breadcrumb {
  position: absolute;
  bottom: 20px;
  text-align: center;
  width: 100%;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
  z-index: 1;
}

.page-hero .breadcrumb a {
  color: rgba(255, 255, 255, 0.8);
}

.page-hero .breadcrumb a:hover {
  color: var(--color-accent);
}

/* ============================================
   CONTENT PAGES
   ============================================ */
.page-content {
  padding: var(--section-padding);
}

.page-content h2 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  color: var(--color-primary);
  margin-bottom: 16px;
  margin-top: 40px;
}

.page-content h2:first-child {
  margin-top: 0;
}

.page-content p {
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.page-content ul {
  margin: 16px 0;
}

.page-content ul li {
  padding: 6px 0 6px 24px;
  position: relative;
  color: var(--color-text-light);
}

.page-content ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* Project Grid */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.project-card {
  background: #fff;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.project-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.project-card-body {
  padding: 20px;
}

.project-card-body h4 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.project-card-body p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* Contact Form */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-top: 32px;
}

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

.form-group label {
  display: block;
  font-weight: 500;
  font-size: 0.9rem;
  margin-bottom: 6px;
  color: var(--color-text);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--color-border);
  border-radius: 8px;
  font-family: var(--font-primary);
  font-size: 0.95rem;
  transition: var(--transition);
  background: #fff;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(26, 122, 109, 0.1);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.contact-info-card {
  background: var(--color-bg-alt);
  border-radius: 12px;
  padding: 32px;
}

.contact-info-card h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.contact-info-item {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}

.contact-info-item:last-child {
  border-bottom: none;
}

.contact-info-item .icon {
  color: var(--color-accent);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-info-item strong {
  display: block;
  margin-bottom: 2px;
  color: var(--color-text);
  font-size: 0.9rem;
}

.contact-info-item span {
  font-size: 0.9rem;
  color: var(--color-text-light);
}

/* Map */
.map-container {
  margin-top: 40px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-md);
}

.map-container iframe {
  width: 100%;
  height: 400px;
  border: none;
}

/* Job listings */
.job-card {
  background: #fff;
  border-radius: 12px;
  padding: 28px 32px;
  box-shadow: var(--shadow-md);
  margin-bottom: 20px;
  transition: var(--transition);
  border-left: 4px solid var(--color-accent);
}

.job-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateX(4px);
}

.job-card h3 {
  font-size: 1.2rem;
  color: var(--color-text);
  margin-bottom: 8px;
}

.job-card p {
  color: var(--color-text-light);
  font-size: 0.9rem;
}

.job-card .job-meta {
  display: flex;
  gap: 16px;
  margin-top: 12px;
  font-size: 0.83rem;
  color: var(--color-text-muted);
}

/* Services page icons */
.service-icon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.service-icon-card {
  text-align: center;
  padding: 36px 24px;
  background: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--color-border);
}

.service-icon-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
  transform: translateY(-4px);
}

.service-icon-card .icon-wrap {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.6rem;
  color: #fff;
}

.service-icon-card h4 {
  font-size: 1.1rem;
  margin-bottom: 8px;
}

.service-icon-card p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ============================================
   ANIMATIONS
   ============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */
/* ============================================
   TABLET (max-width: 992px)
   ============================================ */
@media (max-width: 992px) {
  .nav-toggle {
    display: flex;
  }

  .nav-list {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: #fff;
    flex-direction: column;
    padding: 80px 24px 24px;
    box-shadow: var(--shadow-xl);
    transition: var(--transition-slow);
    z-index: 999;
    overflow-y: auto;
  }

  .nav-list.open {
    right: 0;
  }

  .nav-list a {
    padding: 14px 0;
    border-bottom: 1px solid var(--color-border);
  }

  .nav-list a::after {
    display: none;
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    background: var(--color-bg-alt);
    border-radius: 8px;
    margin-top: 4px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-content .container {
    margin-left: 5%;
  }

  .intro-grid,
  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

  .ref-card {
    min-width: calc(50% - 12px);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

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

  .service-icon-grid {
    grid-template-columns: 1fr 1fr;
  }

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

  .page-hero h1 {
    font-size: 2.2rem;
  }
}

/* ============================================
   MOBILE (max-width: 768px)
   ============================================ */
@media (max-width: 768px) {
  :root {
    --section-padding: 50px 0;
  }

  .container {
    padding: 0 16px;
  }

  /* Topbar */
  .topbar {
    font-size: 0.78rem;
  }

  .topbar .container {
    justify-content: center;
    gap: 16px;
  }

  /* Header */
  .header .container {
    height: 60px;
  }

  .logo svg {
    width: 36px;
    height: 36px;
  }

  .logo-text {
    font-size: 1rem;
  }

  .logo-text span {
    font-size: 0.6rem;
  }

  /* Hero */
  .hero {
    height: 65vh;
    min-height: 420px;
    max-height: 550px;
  }

  .hero h1 {
    font-size: 1.7rem;
  }

  .hero p {
    font-size: 1rem;
    margin-bottom: 20px;
  }

  .hero-badge {
    font-size: 0.7rem;
    padding: 5px 12px;
    margin-bottom: 14px;
  }

  .hero-content .container {
    margin-left: 5%;
    padding: 0 16px;
  }

  .hero-buttons {
    flex-direction: column;
    gap: 10px;
  }

  .hero-buttons .btn {
    width: 100%;
    justify-content: center;
    padding: 12px 24px;
  }

  /* Section titles */
  .section-title {
    font-size: 1.5rem;
  }

  .section-subtitle {
    font-size: 1rem;
  }

  /* Intro */
  .intro-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .intro-images {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .intro-images img {
    height: 150px;
  }

  .intro-images img:first-child {
    height: 180px;
  }

  /* About */
  .about-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .about-images {
    grid-template-columns: 1fr 1fr 1fr;
    grid-template-rows: auto;
  }

  .about-images img {
    height: 100px;
  }

  .about-content h2 {
    font-size: 1.4rem;
  }

  /* References */
  .ref-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .ref-card {
    min-width: calc(80% - 12px);
  }

  .ref-card img {
    height: 180px;
  }

  /* Specializations */
  .spec-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

  /* Certifications */
  .cert-grid {
    gap: 24px;
  }

  .cert-item .cert-value {
    font-size: 0.95rem;
  }

  /* Footer */
  .footer {
    padding: 40px 0 0;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }

  /* Page hero */
  .page-hero {
    height: 200px;
  }

  .page-hero h1 {
    font-size: 1.8rem;
    padding: 0 16px;
  }

  /* Page content */
  .page-content h2 {
    font-size: 1.4rem;
    margin-top: 32px;
  }

  /* Services grid */
  .service-icon-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .service-icon-card {
    padding: 24px 16px;
  }

  .service-icon-card .icon-wrap {
    width: 50px;
    height: 50px;
    font-size: 1.3rem;
    border-radius: 12px;
  }

  .service-icon-card h4 {
    font-size: 0.95rem;
  }

  .service-icon-card p {
    font-size: 0.78rem;
  }

  /* Project grid */
  .project-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .project-card img {
    height: 180px;
  }

  /* Job cards */
  .job-card {
    padding: 20px;
  }

  .job-card h3 {
    font-size: 1.05rem;
  }

  .job-card .job-meta {
    flex-wrap: wrap;
    gap: 8px;
  }

  /* Contact grid */
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .contact-info-card {
    padding: 24px;
  }

  /* Map */
  .map-container iframe {
    height: 280px;
  }

  /* Forms */
  .form-group input,
  .form-group textarea,
  .form-group select {
    padding: 10px 14px;
    font-size: 16px;
    /* prevents iOS zoom on focus */
  }

  /* Buttons */
  .btn {
    padding: 12px 24px;
    font-size: 0.85rem;
    width: 100%;
    justify-content: center;
  }
}

/* ============================================
   SMALL MOBILE (max-width: 480px)
   ============================================ */
@media (max-width: 480px) {
  .hero {
    height: 55vh;
    min-height: 350px;
  }

  .hero h1 {
    font-size: 1.4rem;
    line-height: 1.3;
  }

  .hero p {
    font-size: 0.9rem;
    line-height: 1.6;
  }

  .hero-content .container {
    margin-left: 0;
  }

  .section-title {
    font-size: 1.3rem;
  }

  .section-title::after {
    width: 40px;
    height: 3px;
  }

  /* Intro images fully stack */
  .intro-images {
    grid-template-columns: 1fr;
  }

  .intro-images img,
  .intro-images img:first-child {
    height: 180px;
  }

  /* About images 2-col */
  .about-images {
    grid-template-columns: 1fr 1fr;
  }

  /* Services single column */
  .service-icon-grid {
    grid-template-columns: 1fr;
  }

  /* Ref single card */
  .ref-card {
    min-width: 100%;
  }

  /* Footer */
  .footer-col h4 {
    font-size: 1rem;
    margin-bottom: 12px;
    padding-bottom: 8px;
  }

  /* Page hero */
  .page-hero {
    height: 160px;
  }

  .page-hero h1 {
    font-size: 1.5rem;
  }

  .page-hero .breadcrumb {
    font-size: 0.75rem;
    bottom: 12px;
  }

  /* Cert bar on small screens */
  .cert-grid {
    flex-direction: column;
    gap: 16px;
  }

  /* Topbar stack */
  .topbar .container {
    flex-direction: column;
    gap: 4px;
    align-items: center;
  }

  .topbar {
    padding: 6px 0;
  }
}