:root {
  --ink: #17201b;
  --muted: #5b675f;
  --paper: #f6f4ef;
  --surface: #ffffff;
  --line: #d7d3c8;
  --green: #28624c;
  --green-dark: #143a2d;
  --blue: #255c82;
  --amber: #b7772b;
  --shadow: 0 22px 70px rgba(23, 32, 27, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 6vw;
  background: rgba(246, 244, 239, 0.92);
  border-bottom: 1px solid rgba(215, 211, 200, 0.75);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  color: #fff;
  background: var(--green);
  border-radius: 8px;
  font-weight: 700;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 12px;
}

.nav-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.nav-links a {
  padding: 9px 12px;
  border-radius: 6px;
  color: var(--muted);
  font-size: 14px;
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--ink);
  background: rgba(40, 98, 76, 0.1);
}

.hero {
  position: relative;
  min-height: calc(100vh - 76px);
  display: grid;
  align-items: end;
  overflow: hidden;
  color: #fff;
}

.hero-media,
.hero-overlay {
  position: absolute;
  inset: 0;
}

.hero-media {
  background:
    linear-gradient(90deg, rgba(11, 21, 17, 0.34), rgba(11, 21, 17, 0.06)),
    url("https://www.tec-shine.com/static/style/starry/images/banner/index_01.jpg") center / cover;
  transform: scale(1.02);
}

.hero-overlay {
  background: linear-gradient(180deg, rgba(10, 16, 15, 0.2), rgba(10, 16, 15, 0.8));
}

.hero-content {
  position: relative;
  width: min(960px, 88vw);
  padding: 0 0 9vh 6vw;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--amber);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #ffd99f;
}

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

h1 {
  max-width: 840px;
  margin-bottom: 18px;
  font-size: clamp(44px, 7vw, 92px);
  line-height: 0.96;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 720px;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 20px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 7px;
  font-weight: 700;
  text-decoration: none;
}

.button.primary {
  color: #fff;
  background: var(--green);
}

.button.secondary {
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.65);
}

.quick-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border-bottom: 1px solid var(--line);
}

.quick-strip div {
  min-height: 116px;
  padding: 28px 6vw;
  background: var(--surface);
}

.quick-strip strong,
.quick-strip span {
  display: block;
}

.quick-strip strong {
  margin-bottom: 6px;
  color: var(--green-dark);
}

.quick-strip span {
  color: var(--muted);
  font-size: 14px;
}

.section {
  padding: 88px 6vw;
}

.split {
  display: grid;
  grid-template-columns: minmax(260px, 0.72fr) minmax(420px, 1.28fr);
  gap: 52px;
  align-items: start;
}

.section-copy {
  max-width: 420px;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1.03;
  letter-spacing: 0;
}

.section-copy p,
.rfq-copy p,
.section-heading > p {
  color: var(--muted);
  font-size: 18px;
}

.proof-section {
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.proof-section .section-heading {
  align-items: start;
}

.proof-section .section-heading > p {
  max-width: 520px;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.proof-grid article {
  min-height: 176px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8faf7;
}

.proof-grid strong,
.proof-grid span {
  display: block;
}

.proof-grid strong {
  margin-bottom: 18px;
  color: var(--green-dark);
  font-size: 23px;
  line-height: 1.1;
}

.proof-grid span {
  color: var(--muted);
  font-size: 15px;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.capability-grid article {
  min-height: 202px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(23, 32, 27, 0.05);
}

.capability-grid span {
  display: inline-block;
  margin-bottom: 38px;
  color: var(--blue);
  font-weight: 700;
}

.capability-grid h3 {
  margin-bottom: 8px;
  font-size: 22px;
}

.capability-grid p,
.industry-list p {
  color: var(--muted);
}

.industries {
  background: #e9ece8;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 28px;
}

.section-heading h2 {
  margin-bottom: 0;
}

.industry-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.industry-list article {
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.industry-list img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  background: #d8ded6;
}

.industry-list h3,
.industry-list p {
  padding: 0 22px;
}

.industry-list h3 {
  margin: 22px 0 8px;
  font-size: 22px;
}

.industry-list p {
  margin-bottom: 24px;
}

.rfq-section {
  display: grid;
  grid-template-columns: minmax(300px, 0.9fr) minmax(340px, 0.75fr);
  gap: 44px;
  align-items: stretch;
  background:
    linear-gradient(120deg, rgba(20, 58, 45, 0.93), rgba(37, 92, 130, 0.9)),
    url("https://www.tec-shine.com/static/style/starry/images/banner/banner_business.jpg") center / cover;
  color: #fff;
}

.rfq-section .eyebrow,
.rfq-copy p {
  color: rgba(255, 255, 255, 0.82);
}

.rfq-checklist {
  padding: 32px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  backdrop-filter: blur(12px);
}

.email-fallback {
  margin-top: 18px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 15px;
}

.email-fallback strong {
  color: #fff;
}

.rfq-checklist h3 {
  margin-bottom: 18px;
  font-size: 28px;
}

.rfq-checklist ul {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.rfq-checklist li {
  padding-left: 20px;
  border-left: 3px solid #ffd99f;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  padding: 26px 6vw;
  color: var(--muted);
  background: #fff;
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero-content {
    padding-right: 6vw;
  }

  .quick-strip,
  .split,
  .industry-list,
  .rfq-section,
  .proof-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 64px 6vw;
  }
}

@media (max-width: 640px) {
  .nav-links {
    width: 100%;
  }

  .nav-links a {
    padding-left: 0;
  }

  .hero {
    min-height: 720px;
  }

  .hero-copy {
    font-size: 17px;
  }

  .button {
    width: 100%;
  }

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