:root {
  --ink: #071521;
  --navy: #0b1d2a;
  --steel: #102737;
  --slate: #1f3f55;
  --fog: #e6eef3;
  --mist: #f7f9fb;
  --ember: #f36b21;
  --ember-dark: #c65316;
  --teal: #2bb3a5;
  --white: #ffffff;
  --shadow: 0 24px 60px rgba(7, 21, 33, 0.16);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --max-width: 1200px;
  --font: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  font-family: var(--font);
  color: var(--navy);
  background: var(--mist);
  line-height: 1.6;
}

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

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

a:hover,
a:focus-visible {
  color: var(--ember);
}

p {
  margin: 0 0 1rem;
}

h1, h2, h3, h4 {
  line-height: 1.2;
  margin: 0 0 1rem;
}

h1 {
  font-size: clamp(2.4rem, 4vw, 3.6rem);
}

h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

h3 {
  font-size: 1.3rem;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 10px;
  background: var(--ember);
  color: var(--white);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  z-index: 20;
}

.skip-link:focus {
  left: 10px;
}

.site-header {
  background: var(--navy);
  color: var(--white);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 8px 24px rgba(5, 15, 22, 0.4);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem 0;
}

.logo {\r\n  display: inline-flex;\r\n  align-items: baseline;\r\n  gap: 0.35rem;\r\n}
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.logo img {\r\n  width: 2px;\r\n  height: auto;\r\n  filter: brightness(0) invert(1);\r\n}

.nav-toggle {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--white);
  padding: 0.4rem 0.7rem;
  border-radius: var(--radius-sm);
  display: none;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.nav-menu a {
  color: var(--white);
  font-weight: 500;
}

.nav-cta {
  background: var(--ember);
  color: var(--white);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.nav-cta:hover,
.nav-cta:focus-visible {
  background: var(--ember-dark);
  color: var(--white);
}

@media (max-width: 960px) {
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
  }

  .nav-menu {
    position: absolute;
    right: 1.5rem;
    top: 70px;
    background: var(--navy);
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem;
    border-radius: var(--radius-md);
    min-width: 230px;
    box-shadow: var(--shadow);
    display: none;
  }

  .nav-menu.is-open {
    display: flex;
  }
}

.hero {\r\n  text-align: left;
  background: linear-gradient(120deg, rgba(7, 21, 33, 0.95), rgba(16, 39, 55, 0.92)), url("../img/corrosion_main.jpg") center/cover no-repeat;
  color: var(--white);
  padding: 4.5rem 0;
  position: relative;
  overflow: hidden;
}


.hero .container {
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 620px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.2rem;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary {
  background: var(--ember);
  color: var(--white);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--ember-dark);
  color: var(--white);
  transform: translateY(-1px);
}

.btn-outline {\r\n  border-color: var(--navy);\r\n  color: var(--navy);\r\n}

.hero .btn-outline,
.page-hero .btn-outline {
  border-color: var(--navy);
  color: var(--navy);
}

.btn-outline:hover,
.btn-outline:focus-visible {
  border-color: var(--ember);
  color: var(--ember);
}

.section {
  padding: 4rem 0;
}

.section.alt {
  background: var(--fog);
}

.section-header {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.section-header.notice-centered {
  text-align: center;
  align-items: center;
}

.section-header.notice-centered p {
  margin-left: auto;
  margin-right: auto;
}

.section-header p {
  max-width: 680px;
}

.grid {
  display: grid;
  gap: 1.6rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
}

.card {
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

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

.card-body {
  padding: 1.5rem;
}

.card-body h3 {
  margin-top: 0;
}


.inline-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.inline-list li {
  background: var(--white);
  border-radius: 999px;
  padding: 0.4rem 0.8rem;
  border: 1px solid rgba(12, 28, 40, 0.1);
}

.trust-band {
  background: var(--steel);
  color: var(--white);
  padding: 2rem 0;
}

.trust-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.trust-card {
  border-left: 4px solid var(--ember);
  padding-left: 1rem;
}

.problem-solution {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.problem-solution li {
  list-style: none;
  background: var(--white);
  padding: 1.2rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(12, 28, 40, 0.08);
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 1.5rem;
}

.tab-button {
  background: var(--white);
  border: 1px solid rgba(12, 28, 40, 0.1);
  border-radius: var(--radius-sm);
  padding: 0.5rem 1rem;
  font-weight: 600;
}

.tab-button.active {
  background: var(--ember);
  color: var(--white);
  border-color: var(--ember);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.cta-band {
  background: linear-gradient(120deg, rgba(11, 29, 42, 0.95), rgba(31, 63, 85, 0.9));
  color: var(--white);
  padding: 3rem 0;
}

.cta-band .cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
}

.breadcrumbs {
  font-size: 0.9rem;
  margin-bottom: 1rem;
  color: rgba(11, 29, 42, 0.7);
}

.breadcrumbs a {
  color: inherit;
}

.form-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.form-centered {
  max-width: 720px;
  margin: 0 auto;
}

.form-grid--contact {
  grid-template-columns: repeat(2, minmax(220px, 1fr));
}

.form-grid--contact .full {
  grid-column: 1 / -1;
}

@media (max-width: 720px) {
  .form-grid--contact {
    grid-template-columns: 1fr;
  }
}

.contact-forms .tabs {
  justify-content: center;
}

input,
select,
textarea {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(7, 21, 33, 0.2);
  font-family: inherit;
}

.field-label {
  font-weight: 600;
}

.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.radio-option {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.radio-option input {
  width: auto;
}

textarea {
  min-height: 140px;
}

input:focus,
select:focus,
textarea:focus,
button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--ember);
  outline-offset: 2px;
}

.form-note {
  font-size: 0.9rem;
  color: rgba(7, 21, 33, 0.7);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.filter-bar select,
.filter-bar button {
  min-width: 180px;
}

.case-card {
  position: relative;
}

.case-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  font-size: 0.85rem;
}

.resources-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.resources-list li {
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(7, 21, 33, 0.08);
}

.footer {
  background: var(--navy);
  color: var(--white);
  padding: 3rem 0;
}

.footer-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.footer a {
  color: var(--white);
}

.footer small {
  color: rgba(255, 255, 255, 0.7);
}

.notice {
  background: rgba(243, 107, 33, 0.1);
  padding: 1rem;
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--ember);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: rgba(11, 29, 42, 0.08);
  color: var(--navy);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.8rem;
}

.fade-in {
  animation: fadeIn 0.7s ease both;
}

.stagger > * {
  animation: fadeUp 0.7s ease both;
  animation-delay: calc(var(--i, 0) * 0.08s);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.hidden {
  display: none !important;
}

.page-hero {
  background: var(--fog);
  padding: 3rem 0 2rem;
}

.page-hero .hero-content {
  max-width: 720px;
}

.stat-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.stat {
  background: var(--white);
  border-radius: var(--radius-sm);
  padding: 1rem;
  border: 1px solid rgba(7, 21, 33, 0.08);
}

.highlight {
  color: var(--ember);
  font-weight: 600;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.table th,
.table td {
  border-bottom: 1px solid rgba(7, 21, 33, 0.1);
  padding: 0.8rem;
  text-align: left;
}

.tag-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.service-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.service-list li {
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(7, 21, 33, 0.08);
}

.service-list--grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.service-list--grid li {
  border-bottom: none;
  border: 1px solid rgba(7, 21, 33, 0.12);
  border-radius: var(--radius-sm);
  padding: 1rem;
  background: var(--white);
}

@media (max-width: 960px) {
  .service-list--grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .service-list--grid {
    grid-template-columns: 1fr;
  }
}

.media-block {
  display: grid;
  gap: 1.5rem;
  align-items: center;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.quote {
  background: var(--white);
  padding: 1.5rem;
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--ember);
  font-style: italic;
}

.error-page {
  text-align: center;
  padding: 6rem 0;
}

.viewer-counter {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 999;
  max-width: 280px;
  padding: 0.85rem 1.2rem;
  border-radius: 999px;
  background: rgba(7, 21, 33, 0.92);
  color: var(--white);
  font-size: 0.85rem;
  line-height: 1.4;
  box-shadow: 0 16px 30px rgba(7, 21, 33, 0.28);
}

.viewer-counter strong {
  color: var(--ember);
  font-weight: 700;
}

@media (max-width: 1024px) {
  .viewer-counter {
    display: none;
  }
}






.btn-outline-light {
  border-color: var(--white);
  color: var(--white);
}


.logo-mark {
  font-weight: 700;
  color: var(--ember);
  font-size: 1.1rem;
  letter-spacing: 0.04em;
}
.logo-text {
  font-weight: 600;
  color: var(--white);
  font-size: 0.9rem;
  letter-spacing: 0.08em;
}

.hero .btn-outline-light,
.page-hero .btn-outline-light {
  border-color: var(--white);
  color: var(--white);
}


.services-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.services-grid .span-all {
  grid-column: 1 / -1;
}
@media (max-width: 1100px) {
  .services-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .services-grid .span-all {
    grid-column: 1 / -1;
  }
}
@media (max-width: 720px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
}


.home .hero-content {
  text-align: center;
  margin: 0 auto;
}
.home .section-header {
  text-align: center;
  align-items: center;
}
.home .section-header p {
  margin-left: auto;
  margin-right: auto;
}
.home .trust-band .trust-card {
  text-align: center;
}
.home .cta-band .container {
  text-align: center;
}
.home .resources-section {
  text-align: center;
}
.home .resources-section .section-header {
  text-align: center;
  align-items: center;
}


.home .hero-actions {
  justify-content: center;
}

.home .section .cta-actions {
  justify-content: center;
}
.home .resources-section .cta-actions {
  justify-content: center;
}
.home .footer .btn {
  justify-content: center;
}

.home .services-grid .card-body {
  display: flex;
  flex-direction: column;
}
.home .services-grid .card-body .btn {
  margin-top: auto;
  align-self: flex-start;
}
.home .services-grid .span-all .card-body {
  text-align: center;
  align-items: center;
}
.home .services-grid .span-all .card-body .btn {
  align-self: center;
}


.home .section .btn {
  align-self: center;
}
.home .resources-section .btn {
  align-self: center;
}

.home .services-grid .card {
  display: flex;
  flex-direction: column;
}



.home .cta-band .cta-actions {
  justify-content: center;
}


.footer-logo {\r\n  display: inline-flex;\r\n  align-items: baseline;\r\n  gap: 0.35rem;\r\n  margin-bottom: 0.6rem;\r\n}



.notice-centered {
  text-align: center;
}
.notice-centered .cta-actions {
  justify-content: center;
}


.resources-section .notice-centered {
  align-self: center;
}

.resources-contact-card {
  max-width: 520px;
  margin: 0 auto;
}


.home .tabs {
  justify-content: center;
}


.grid .card {
  display: flex;
  flex-direction: column;
}

.grid .card-body {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.grid .card-body .btn {
  margin-top: auto;
}

.home .services-grid .span-all .card-body {
  text-align: center;
  align-items: center;
}


.home .services-grid .card img,
.home .media-block img {
  object-fit: cover;
  height: 400px;
}