:root {
  --paper: #f3f0e8;
  --surface: #fffdf7;
  --ink: #171b1f;
  --graphite: #252b30;
  --steel: #69747d;
  --line: rgba(23, 27, 31, 0.16);
  --rust: #a24427;
  --safety: #f4b321;
  --white: #ffffff;
  --shadow: 0 18px 44px rgba(23, 27, 31, 0.14);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(23, 27, 31, 0.045) 1px, transparent 1px) 0 0 / 54px 54px,
    linear-gradient(180deg, var(--paper), #fbf8ef);
  color: var(--ink);
  font-family: "Inter", Arial, sans-serif;
  line-height: 1.55;
}

body.menu-open {
  overflow: hidden;
}

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

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

.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;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem clamp(1rem, 4vw, 4rem);
  background: rgba(23, 27, 31, 0.94);
  border-bottom: 3px solid var(--safety);
  color: var(--white);
  backdrop-filter: blur(16px);
  transition: box-shadow 180ms ease, background 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(23, 27, 31, 0.98);
  box-shadow: 0 12px 30px rgba(23, 27, 31, 0.18);
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 800;
}

.brand img {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  object-fit: contain;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.92rem;
  font-weight: 800;
}

.site-nav a {
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius);
  color: rgba(255, 255, 255, 0.82);
}

.site-nav a:hover {
  background: rgba(244, 179, 33, 0.14);
  color: var(--white);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.08);
}

.menu-toggle span:not(.sr-only) {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: var(--white);
}

.hero {
  min-height: 66vh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.72fr);
  align-items: stretch;
  gap: clamp(1rem, 4vw, 3rem);
  padding: 6.6rem clamp(1rem, 5vw, 4rem) 3rem;
}

.hero-content,
.hero-visual {
  border-radius: var(--radius);
}

.hero-content {
  display: grid;
  align-content: center;
  padding: clamp(1.4rem, 5vw, 4.2rem);
  background:
    linear-gradient(135deg, rgba(244, 179, 33, 0.16), transparent 36%),
    var(--graphite);
  color: var(--white);
  box-shadow: var(--shadow);
}

.section-kicker {
  margin: 0 0 0.75rem;
  color: var(--rust);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .section-kicker {
  color: var(--safety);
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.06;
  color: var(--ink);
}

h1,
h2 {
  font-family: "Roboto Slab", Georgia, serif;
}

h1 {
  max-width: 820px;
  color: var(--white);
  font-size: clamp(2.8rem, 7vw, 6rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3.35rem);
}

h3 {
  font-size: 1.16rem;
}

.hero-copy {
  max-width: 660px;
  margin: 1.35rem 0 2rem;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(1rem, 2vw, 1.18rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.85rem 1.2rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 800;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn.primary {
  background: var(--safety);
  color: var(--ink);
  box-shadow: 0 12px 24px rgba(244, 179, 33, 0.24);
}

.btn.secondary {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.28);
  color: var(--white);
}

.contact .btn.secondary,
.contact .btn.primary {
  background: var(--graphite);
  color: var(--white);
}

.hero-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.7rem;
  margin-top: clamp(1.6rem, 4vw, 3rem);
}

.hero-strip span {
  min-height: 74px;
  padding: 0.85rem;
  border-left: 4px solid var(--safety);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.74);
}

.hero-strip strong {
  display: block;
  color: var(--white);
  font-size: 1.25rem;
}

.hero-visual {
  position: relative;
  display: grid;
  align-content: center;
  justify-items: center;
  min-height: 364px;
  padding: 1.5rem;
  border: 1px solid var(--line);
  background:
    repeating-linear-gradient(45deg, rgba(244, 179, 33, 0.22), rgba(244, 179, 33, 0.22) 18px, rgba(23, 27, 31, 0.09) 18px, rgba(23, 27, 31, 0.09) 36px),
    var(--surface);
  overflow: hidden;
}

.hero-visual::before {
  position: absolute;
  inset: 1.2rem;
  border: 2px solid rgba(23, 27, 31, 0.14);
  border-radius: var(--radius);
  content: "";
}

.hero-visual img {
  position: relative;
  z-index: 1;
  width: min(360px, 78vw);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.tool-rail {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
  width: min(360px, 78vw);
  margin-top: 1rem;
}

.tool-rail span {
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--white);
  font-size: 0.82rem;
  font-weight: 800;
  text-align: center;
}

.section {
  padding: clamp(4rem, 8vw, 7rem) clamp(1rem, 6vw, 5rem);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 2rem;
}

.about {
  background: var(--surface);
}

.essence {
  background: var(--ink);
  color: var(--white);
}

.essence h2 {
  color: var(--white);
}

.essence .section-kicker {
  color: var(--safety);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.62fr) minmax(0, 1fr);
  gap: clamp(1rem, 4vw, 3rem);
  align-items: stretch;
}

.about-note {
  padding: clamp(1.2rem, 3vw, 2rem);
  border-radius: var(--radius);
  background: var(--graphite);
  color: var(--white);
}

.about-note strong {
  display: block;
  max-width: 440px;
  color: var(--safety);
  font-family: "Roboto Slab", Georgia, serif;
  font-size: clamp(1.45rem, 3vw, 2.15rem);
  line-height: 1.1;
}

.about-note p {
  margin: 1rem 0 0;
  color: rgba(255, 255, 255, 0.76);
}

.essence-copy {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  max-width: 1080px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius);
  overflow: hidden;
}

.essence-copy p {
  margin: 0;
  padding: clamp(1.15rem, 3vw, 2rem);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.76);
}

.essence-copy p + p {
  border-left: 1px solid rgba(255, 255, 255, 0.16);
}

.feature-list,
.testimonial-grid,
.product-grid {
  display: grid;
  gap: 0.9rem;
}

.feature-list {
  grid-template-columns: 1fr;
}

.feature-list article {
  display: grid;
  grid-template-columns: 62px 0.36fr 1fr;
  gap: 1rem;
  align-items: center;
  padding: 1rem;
  border-bottom: 1px solid var(--line);
  background: transparent;
}

.feature-list article:first-child {
  border-top: 1px solid var(--line);
}

.feature-number {
  color: var(--rust);
  font-weight: 800;
}

.feature-list strong,
.feature-list span {
  display: block;
}

.feature-list strong {
  color: var(--ink);
  font-size: 1.05rem;
}

.feature-list span:last-child {
  color: rgba(23, 27, 31, 0.72);
}

.products {
  background: var(--paper);
}

.product-shelf {
  grid-template-columns: 1fr;
  max-width: 1080px;
}

.product-card {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) 72px;
  gap: 1rem;
  align-items: center;
  min-height: 118px;
  padding: 1rem;
  border: 1px solid var(--line);
  border-left: 6px solid var(--rust);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 10px 24px rgba(23, 27, 31, 0.08);
}

.product-card::after {
  content: attr(data-code);
  justify-self: end;
  color: rgba(23, 27, 31, 0.32);
  font-weight: 800;
}

.product-icon {
  position: relative;
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: var(--radius);
  background: rgba(244, 179, 33, 0.25);
}

.product-icon::before,
.product-icon::after {
  position: absolute;
  content: "";
}

.icon-tools::before {
  width: 30px;
  height: 8px;
  border-radius: 3px;
  background: var(--graphite);
  transform: rotate(-38deg);
}

.icon-tools::after {
  width: 10px;
  height: 30px;
  border-radius: 2px 2px 6px 6px;
  background: var(--rust);
  transform: rotate(45deg) translate(5px, 1px);
}

.icon-bolt::before {
  width: 30px;
  height: 30px;
  background: var(--graphite);
  clip-path: polygon(42% 0, 72% 0, 56% 36%, 78% 36%, 32% 100%, 42% 54%, 22% 54%);
}

.icon-bolt::after {
  width: 22px;
  height: 22px;
  border: 4px solid var(--rust);
  border-radius: 50%;
}

.icon-wire::before {
  width: 32px;
  height: 19px;
  border: 4px solid var(--graphite);
  border-top: 0;
  border-radius: 0 0 18px 18px;
}

.icon-wire::after {
  width: 28px;
  height: 18px;
  top: 11px;
  border-left: 5px solid var(--rust);
  border-right: 5px solid var(--rust);
}

.icon-paint::before {
  width: 28px;
  height: 18px;
  top: 13px;
  border: 3px solid var(--graphite);
  border-radius: 4px;
  background: var(--safety);
}

.icon-paint::after {
  width: 8px;
  height: 24px;
  top: 27px;
  border-radius: 0 0 6px 6px;
  background: var(--rust);
}

.product-card p,
.testimonial-card p,
.contact-panel p {
  color: rgba(23, 27, 31, 0.72);
}

.testimonials {
  background: var(--surface);
}

.testimonial-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.testimonial-card {
  display: grid;
  gap: 1rem;
  align-content: start;
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
}

.testimonial-card img {
  width: 58px;
  height: 58px;
  border: 3px solid var(--safety);
  border-radius: var(--radius);
  object-fit: cover;
}

.testimonial-card p {
  margin-top: 0;
  font-size: 1.02rem;
}

.testimonial-card strong {
  color: var(--ink);
}

.contact {
  background:
    linear-gradient(90deg, var(--safety) 0 12px, transparent 12px),
    var(--paper);
}

.contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  max-width: 1180px;
  margin: 0 auto;
  padding: clamp(1.25rem, 4vw, 3rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.contact-form {
  display: grid;
  gap: 1rem;
}

label {
  display: grid;
  gap: 0.4rem;
  color: var(--ink);
  font-weight: 800;
}

input,
textarea {
  width: 100%;
  border: 1px solid rgba(23, 27, 31, 0.22);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--ink);
  font: inherit;
  padding: 0.9rem 1rem;
}

textarea {
  resize: vertical;
}

input:focus,
textarea:focus {
  outline: 3px solid rgba(244, 179, 33, 0.34);
  border-color: var(--rust);
}

.form-status {
  min-height: 1.5rem;
  margin: 0;
  font-weight: 700;
  color: var(--rust);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 2rem clamp(1rem, 6vw, 5rem);
  background: var(--ink);
  color: var(--paper);
}

.site-footer p {
  margin: 0.2rem 0;
  color: rgba(243, 240, 232, 0.78);
}

.footer-brand {
  margin-bottom: 0.55rem;
  color: var(--white);
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid rgba(243, 240, 232, 0.24);
  border-radius: var(--radius);
  color: var(--white);
  font-weight: 800;
}

.social-links i {
  width: 1rem;
  text-align: center;
  color: var(--safety);
  font-size: 1.05rem;
}

@media (max-width: 980px) {
  .hero,
  .about-grid,
  .essence-copy,
  .contact-panel {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    min-height: 360px;
  }

  .essence-copy p + p {
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.16);
  }

  .testimonial-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .brand span {
    max-width: 155px;
    line-height: 1.1;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 74px;
    left: 1rem;
    right: 1rem;
    display: grid;
    gap: 0.35rem;
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius);
    background: rgba(23, 27, 31, 0.98);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 180ms ease, transform 180ms ease;
  }

  .site-nav.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .site-nav a {
    padding: 0.75rem;
  }

  .hero {
    padding-top: 6rem;
  }

  .hero-strip,
  .tool-rail,
  .testimonial-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions,
  .site-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .feature-list article,
  .product-card {
    grid-template-columns: 1fr;
  }

  .product-card::after {
    justify-self: start;
  }
}

@media (min-width: 981px) {
  .hero {
    grid-template-columns: minmax(320px, 0.72fr) minmax(0, 1fr);
  }

  .hero-content {
    grid-column: 2;
    grid-row: 1;
  }

  .hero-visual {
    grid-column: 1;
    grid-row: 1;
  }

  .site-footer {
    position: relative;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    overflow: hidden;
  }

  .site-footer::before {
    position: absolute;
    inset: 0 auto 0 0;
    width: 14px;
    background: var(--safety);
    content: "";
  }

  .social-links {
    order: -1;
    justify-content: start;
  }

  .site-footer > div:first-child {
    justify-self: end;
    text-align: right;
  }
}