:root {
  --background: #0f1115;
  --surface: #151a22;
  --surface-soft: #1a202a;
  --light-section: #ede4d6;
  --card: rgba(255, 255, 255, 0.03);
  --text: #f5f7fa;
  --dark-text: #151820;
  --muted: #9ca3af;
  --warm-muted: #6f6a61;
  --line: rgba(255, 255, 255, 0.11);
  --warm-line: rgba(27, 24, 20, 0.12);
  --orange: #ff7a3d;
  --blue: #4f8cff;
  --radius: 26px;
  --shadow: 0 28px 90px rgba(4, 6, 10, 0.34);
  --warm-shadow: 0 28px 80px rgba(55, 46, 34, 0.18);
  --font-heading: "General Sans", "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 4%, rgba(255, 122, 61, 0.12), transparent 31rem),
    radial-gradient(circle at 88% 2%, rgba(79, 140, 255, 0.1), transparent 33rem),
    linear-gradient(180deg, #131720 0%, var(--background) 42%, #12161d 100%),
    var(--background);
  color: var(--text);
  font-family: var(--font-body);
  letter-spacing: 0;
  font-weight: 400;
}

body.overlay-open {
  overflow: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.024) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
  background-size: 100% 110px, 110px 100%;
  mask-image: linear-gradient(to bottom, black 0%, transparent 78%);
}

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

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

.page-shell {
  width: min(100% - 40px, 1220px);
  margin: 0 auto;
}

.site-header {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 16px;
  margin-right: -32px;
  margin-left: -32px;
  padding: 14px 16px;
  border: 1px solid rgba(27, 24, 20, 0.12);
  border-radius: 999px;
  background:
    linear-gradient(145deg, rgba(251, 247, 239, 0.92), rgba(237, 228, 214, 0.88));
  box-shadow: 0 18px 55px rgba(55, 46, 34, 0.16);
  backdrop-filter: blur(22px);
}

.brand,
.nav-links,
.footer-links {
  display: flex;
  align-items: center;
}

.brand {
  width: 156px;
  height: 34px;
  overflow: hidden;
}

.brand img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: left center;
}

.nav-links {
  gap: 26px;
  color: rgba(21, 24, 32, 0.68);
  font-size: 0.9rem;
  font-weight: 500;
}

.nav-links a,
.footer-links a {
  transition: color 180ms ease;
}

.nav-links a:hover,
.footer-links a:hover {
  color: var(--dark-text);
}

.nav-action {
  padding: 10px 16px;
  border: 1px solid rgba(21, 24, 32, 0.14);
  border-radius: 999px;
  background: rgba(21, 24, 32, 0.055);
  color: var(--dark-text);
  font-size: 0.88rem;
  font-weight: 500;
  transition: transform 180ms ease, background 180ms ease;
}

.nav-action:hover,
.button:hover,
.feature-card:hover,
.installation-item:hover {
  transform: translateY(-2px);
}

.nav-action:hover {
  background: rgba(21, 24, 32, 0.09);
}

.hero {
  min-height: calc(100vh - 110px);
  margin-top: 34px;
  margin-right: -32px;
  margin-left: -32px;
  padding: 72px 64px;
  align-items: center;
  border: 1px solid rgba(27, 24, 20, 0.1);
  border-radius: 38px;
  background:
    radial-gradient(circle at 10% 8%, rgba(255, 122, 61, 0.16), transparent 28rem),
    radial-gradient(circle at 86% 18%, rgba(79, 140, 255, 0.12), transparent 30rem),
    linear-gradient(145deg, #fbf7ef 0%, var(--light-section) 52%, #ede5d9 100%);
  box-shadow: var(--warm-shadow);
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  gap: 58px;
}

.hero-copy {
  max-width: 650px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--orange);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3,
.brand,
.site-footer span {
  font-family: var(--font-heading);
}

h1 {
  margin-bottom: 28px;
  font-size: clamp(4.1rem, 8.4vw, 7.7rem);
  line-height: 0.94;
  font-weight: 500;
  letter-spacing: -0.055em;
}

h1 span {
  display: block;
  transform: none;
}

h1 span:nth-child(-n + 2) {
  transform: translateX(-0.055em);
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(2.35rem, 4.7vw, 4.65rem);
  line-height: 1.03;
  font-weight: 500;
  letter-spacing: -0.052em;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.18rem;
  line-height: 1.32;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.hero-text,
.section-heading p,
.feature-card p,
.installation-item p,
.why p,
.cta p,
.site-footer p {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.76;
  font-weight: 400;
}

.hero-text {
  max-width: 560px;
  margin-bottom: 38px;
  font-size: 1.16rem;
  line-height: 1.72;
}

.hero h1 {
  color: var(--dark-text);
  transform: translateX(-47px);
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
}

.hero .hero-text {
  color: var(--dark-text);
}

.hero-text,
.hero-actions {
  transform: translateX(-28px);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button-primary {
  background: var(--light-section);
  color: var(--dark-text);
  box-shadow: 0 16px 42px rgba(5, 8, 14, 0.2);
}

.button-primary:hover {
  background: #fffaf2;
}

.hero .button-primary {
  background: var(--dark-text);
  color: #fffaf2;
  box-shadow: 0 18px 44px rgba(21, 24, 32, 0.22);
}

.hero .button-primary:hover {
  background: #202532;
}

.button-secondary {
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.045);
  color: var(--text);
}

.hero .button-secondary {
  border-color: rgba(21, 24, 32, 0.16);
  background: rgba(21, 24, 32, 0.04);
  color: var(--dark-text);
}

.button-secondary:hover {
  border-color: rgba(255, 255, 255, 0.26);
  background: rgba(255, 255, 255, 0.09);
}

.hero .button-secondary:hover {
  border-color: rgba(21, 24, 32, 0.24);
  background: rgba(21, 24, 32, 0.075);
}

.hero-media {
  position: relative;
  align-self: start;
  display: block;
  padding: 0;
  cursor: zoom-in;
  transform: translate(47px, -19px);
  overflow: hidden;
  border: 1px solid rgba(27, 24, 20, 0.13);
  border-radius: 34px;
  background: #ded6c8;
  box-shadow: 0 30px 90px rgba(55, 46, 34, 0.26);
  color: inherit;
  font: inherit;
}

.hero-media::after {
  position: absolute;
  inset: 0;
  content: "";
  background: linear-gradient(180deg, transparent 58%, rgba(21, 24, 32, 0.22));
  pointer-events: none;
}

.hero-media img {
  width: 100%;
  height: min(620px, 64vh);
  object-fit: cover;
  transition: transform 500ms ease;
}

.hero-media:hover img {
  transform: scale(1.018);
}

.image-viewer-hint {
  position: absolute;
  right: 18px;
  bottom: 18px;
  z-index: 1;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(21, 24, 32, 0.62);
  color: rgba(245, 245, 245, 0.84);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  backdrop-filter: blur(18px);
}

.image-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 28px;
  background: rgba(10, 13, 18, 0.84);
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms ease;
  backdrop-filter: blur(18px);
}

.image-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.image-overlay img {
  max-width: min(1120px, 92vw);
  max-height: 84vh;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 28px;
  box-shadow: 0 32px 120px rgba(0, 0, 0, 0.72);
}

.image-overlay-close {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 1;
  padding: 10px 15px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(23, 24, 27, 0.82);
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-size: 0.88rem;
  font-weight: 500;
  transition: background 180ms ease, transform 180ms ease;
}

.image-overlay-close:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-1px);
}

.showcase,
.installations,
.why,
.cta {
  padding: 94px 0;
}

.showcase,
.installations,
.why {
  position: relative;
}

.showcase {
  margin-top: 54px;
}

.installations,
.why {
  border-top: 1px solid rgba(255, 255, 255, 0.075);
}

.section-heading {
  width: min(760px, 100%);
  margin-bottom: 42px;
}

.product-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 18px;
}

.feature-card,
.why article {
  border: 1px solid rgba(27, 24, 20, 0.12);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 12% 0%, rgba(255, 122, 61, 0.1), transparent 18rem),
    radial-gradient(circle at 92% 18%, rgba(79, 140, 255, 0.08), transparent 18rem),
    linear-gradient(145deg, #fbf7ef 0%, var(--light-section) 58%, #eee6da 100%);
  box-shadow: var(--warm-shadow);
  backdrop-filter: blur(18px);
}

.feature-card {
  min-height: 330px;
  padding: 30px;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.feature-card:hover {
  border-color: rgba(27, 24, 20, 0.18);
  background:
    radial-gradient(circle at 12% 0%, rgba(255, 122, 61, 0.13), transparent 18rem),
    radial-gradient(circle at 92% 18%, rgba(79, 140, 255, 0.1), transparent 18rem),
    linear-gradient(145deg, #fffaf2 0%, var(--light-section) 58%, #eee6da 100%);
  box-shadow: 0 30px 82px rgba(55, 46, 34, 0.2);
}

.feature-card-large,
.feature-card-media {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  align-items: start;
  background:
    radial-gradient(circle at 10% 0%, rgba(255, 122, 61, 0.15), transparent 24rem),
    radial-gradient(circle at 96% 12%, rgba(79, 140, 255, 0.13), transparent 25rem),
    linear-gradient(145deg, #fbf7ef 0%, var(--light-section) 58%, #eee6da 100%);
}

.card-copy {
  min-width: 0;
}

.feature-card-large .card-index,
.feature-card-media .card-index {
  margin-bottom: 18px;
}

.card-image {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  order: -1;
  min-height: 230px;
  padding: 24px;
  overflow: hidden;
  border: 1px solid rgba(27, 24, 20, 0.1);
  border-radius: 22px;
  background:
    radial-gradient(circle at 50% 40%, rgba(255, 255, 255, 0.74), transparent 18rem),
    linear-gradient(145deg, #fbf7ef 0%, #e7ddcf 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.44), 0 16px 42px rgba(55, 46, 34, 0.12);
  cursor: zoom-in;
}

.card-image img {
  width: 100%;
  max-height: 260px;
  object-fit: contain;
  transition: transform 360ms ease;
}

.card-image:hover img {
  transform: translateY(-2px);
}

.card-index {
  display: inline-flex;
  width: fit-content;
  min-height: 30px;
  align-items: center;
  justify-content: center;
  margin-bottom: 112px;
  padding: 0 12px;
  border: 1px solid rgba(255, 122, 61, 0.24);
  border-radius: 999px;
  background: rgba(255, 122, 61, 0.09);
  color: var(--orange);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.08em;
}

.feature-card h3,
.feature-card p {
  color: var(--dark-text);
}

.feature-card p {
  color: var(--dark-text);
}

.feature-card h3 {
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
}

.product-inquiry-button {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  margin-top: 20px;
  padding: 0 18px;
  border: 1px solid rgba(17, 19, 21, 0.14);
  border-radius: 999px;
  background: rgba(17, 19, 21, 0.06);
  color: var(--dark-text);
  font-size: 0.9rem;
  font-weight: 600;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.product-inquiry-button:hover {
  border-color: rgba(17, 19, 21, 0.22);
  background: rgba(17, 19, 21, 0.1);
  transform: translateY(-1px);
}

.installation-list {
  border-top: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.022), transparent),
    rgba(255, 255, 255, 0.012);
  border-radius: 28px;
  overflow: hidden;
}

.installation-item {
  display: grid;
  grid-template-columns: 1fr minmax(240px, 0.55fr);
  gap: 24px;
  padding: 30px 28px;
  border-bottom: 1px solid var(--line);
  transition: transform 180ms ease, background 180ms ease;
}

.installation-item:hover {
  background: rgba(255, 255, 255, 0.03);
}

.installation-item span {
  display: block;
  margin-bottom: 8px;
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.installation-item h3,
.installation-item p {
  margin-bottom: 0;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.why article {
  padding: 28px;
}

.why article h3,
.why article p {
  color: var(--dark-text);
}

.why article h3 {
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 700;
}

.cta {
  display: grid;
  grid-template-columns: minmax(320px, 0.86fr) minmax(480px, 1.14fr);
  align-items: start;
  gap: 54px;
  margin: 72px 0 28px;
  padding: 58px;
  border: 1px solid rgba(255, 255, 255, 0.11);
  border-radius: 34px;
  background:
    radial-gradient(circle at 8% 4%, rgba(255, 122, 61, 0.13), transparent 26rem),
    radial-gradient(circle at 94% 92%, rgba(79, 140, 255, 0.14), transparent 26rem),
    linear-gradient(145deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.02)),
    var(--surface-soft);
  box-shadow: var(--shadow);
}

.cta h2 {
  max-width: 760px;
}

.cta p {
  max-width: 620px;
  margin-bottom: 0;
}

.contact-intro {
  position: sticky;
  top: 28px;
}

.contact-form {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 17px;
  padding: 24px;
  border: 1px solid rgba(27, 24, 20, 0.12);
  border-radius: 28px;
  background:
    radial-gradient(circle at 8% 0%, rgba(255, 122, 61, 0.08), transparent 18rem),
    linear-gradient(145deg, #fbf7ef 0%, var(--light-section) 62%, #eee6da 100%);
  box-shadow: 0 24px 72px rgba(55, 46, 34, 0.18);
  backdrop-filter: blur(18px);
  color: var(--dark-text);
}

.contact-form * {
  color: inherit;
}

.form-field {
  min-width: 0;
}

.form-field-wide {
  grid-column: 1 / -1;
}

.form-field label {
  display: block;
  margin: 0 0 9px;
  color: var(--dark-text);
  font-size: 0.86rem;
  font-weight: 500;
  line-height: 1.2;
}

.form-field input,
.form-field select,
.form-field textarea {
  appearance: none;
  display: block;
  width: 100%;
  border: 1px solid rgba(27, 24, 20, 0.13);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.48);
  color: var(--dark-text);
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.96rem;
  line-height: 1.5;
  outline: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.035);
  transition: border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.form-field input,
.form-field select {
  min-height: 52px;
  padding: 0 16px;
}

.form-field textarea {
  resize: vertical;
  min-height: 168px;
  padding: 15px 16px;
}

.form-field select {
  color-scheme: light;
  background-image:
    linear-gradient(45deg, transparent 50%, rgba(21, 24, 32, 0.72) 50%),
    linear-gradient(135deg, rgba(21, 24, 32, 0.72) 50%, transparent 50%);
  background-position:
    calc(100% - 20px) 50%,
    calc(100% - 14px) 50%;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: rgba(21, 24, 32, 0.62);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: rgba(255, 122, 61, 0.5);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 0 0 4px rgba(255, 122, 61, 0.08);
}

.form-field.is-invalid input,
.form-field.is-invalid select,
.form-field.is-invalid textarea {
  border-color: rgba(255, 122, 61, 0.74);
}

.field-error {
  min-height: 0;
  margin: 8px 0 0;
  color: #8f2d12;
  font-size: 0.82rem;
  line-height: 1.45;
}

.field-error:empty {
  display: none;
}

.message-meta {
  display: flex;
  justify-content: flex-end;
  margin-top: 8px;
  color: rgba(21, 24, 32, 0.78);
  font-size: 0.8rem;
}

.form-submit-row {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-top: 2px;
}

.form-status {
  margin: 0;
  color: var(--dark-text);
  font-size: 0.9rem;
  line-height: 1.5;
}

.form-status.is-success {
  color: #176b3b;
}

.form-alert {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 80;
  width: min(390px, calc(100vw - 40px));
  padding: 16px 18px;
  border: 1px solid rgba(255, 122, 61, 0.28);
  border-radius: 18px;
  background: rgba(31, 23, 18, 0.94);
  color: #ffd7c8;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.48);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 180ms ease, transform 180ms ease;
  backdrop-filter: blur(20px);
  font-size: 0.92rem;
  line-height: 1.5;
}

.form-alert.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.form-alert.is-success {
  border-color: rgba(184, 243, 207, 0.28);
  background: rgba(10, 20, 15, 0.94);
  color: #c8f7da;
}

.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 60;
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  border: 1px solid rgba(27, 24, 20, 0.14);
  border-radius: 50%;
  background:
    linear-gradient(145deg, rgba(251, 247, 239, 0.94), rgba(237, 228, 214, 0.9));
  color: var(--dark-text);
  cursor: pointer;
  box-shadow: 0 18px 50px rgba(5, 8, 14, 0.22);
  opacity: 0;
  pointer-events: none;
  transform: translateY(14px);
  transition: opacity 180ms ease, transform 180ms ease, box-shadow 180ms ease;
  font-size: 1.5rem;
  line-height: 1;
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top:hover {
  box-shadow: 0 22px 64px rgba(5, 8, 14, 0.28);
  transform: translateY(-2px);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 32px 0 42px;
  color: var(--muted);
  border-top: 1px solid rgba(255, 255, 255, 0.075);
}

.site-footer span {
  color: var(--text);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.site-footer p {
  margin-bottom: 0;
  font-size: 0.92rem;
}

.footer-links {
  gap: 18px;
  font-size: 0.9rem;
}

@media (max-width: 940px) {
  .page-shell {
    width: min(100% - 28px, 1220px);
  }

  .nav-links {
    display: none;
  }

  .section-grid,
  .product-grid,
  .why-grid,
  .installation-item {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 70px;
    padding-right: 34px;
    padding-left: 34px;
    margin-right: 0;
    margin-left: 0;
  }

  .hero-media img {
    height: auto;
    aspect-ratio: 1.18;
  }

  .hero-media {
    transform: none;
  }

  .feature-card {
    min-height: 250px;
  }

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

  .card-index {
    margin-bottom: 70px;
  }

  .cta,
  .site-footer {
    align-items: flex-start;
  }

  .site-footer {
    flex-direction: column;
  }

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

  .contact-intro {
    position: static;
  }
}

@media (max-width: 580px) {
  .site-header {
    margin-right: 0;
    margin-left: 0;
  }

  .site-header {
    top: 10px;
    padding: 10px;
  }

  .nav-action {
    display: none;
  }

  .hero {
    padding: 58px 0 44px;
  }

  h1 {
    font-size: clamp(3.25rem, 17vw, 4.55rem);
    line-height: 0.98;
    letter-spacing: -0.055em;
  }

  .showcase,
  .installations,
  .why,
  .cta {
    padding: 64px 0;
  }

  .hero {
    margin-top: 24px;
    padding: 46px 24px;
    border-radius: 28px;
  }

  .hero-media {
    border-radius: 24px;
  }

  .feature-card,
  .why article,
  .cta {
    border-radius: 22px;
    padding: 24px;
  }

  .hero-actions,
  .button,
  .form-submit-row {
    width: 100%;
  }

  .form-submit-row {
    align-items: stretch;
    flex-direction: column;
  }
}