:root {
  --navy: #07192f;
  --navy-soft: #102a46;
  --navy-muted: #30435b;
  --orange: #ff6b00;
  --orange-dark: #dc5c00;
  --orange-soft: #fff3e8;
  --cream: #fff9f3;
  --paper: #ffffff;
  --muted: #627083;
  --line: #e7edf4;
  --shadow: 0 24px 70px rgba(7, 25, 47, 0.12);
  --soft-shadow: 0 14px 42px rgba(7, 25, 47, 0.07);
  --radius: 26px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--navy);
  background: var(--paper);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -10rem;
  z-index: 999;
  padding: 0.75rem 1rem;
  background: var(--navy);
  color: #fff;
  border-radius: 999px;
}

.skip-link:focus {
  top: 1rem;
}

.container {
  width: min(var(--max), calc(100% - 2rem));
  margin: 0 auto;
}

.narrow {
  width: min(850px, calc(100% - 2rem));
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 1);
  border-bottom: 1px solid rgba(231, 237, 244, 0.95);
  backdrop-filter: blur(18px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  min-height: 92px;
}

.brand {
  display: block;
  width: min(340px, 56vw);
  text-decoration: none;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  font-size: 0.92rem;
  font-weight: 750;
  color: var(--navy-soft);
}

.nav a {
  text-decoration: none;
  white-space: nowrap;
}

.nav a:hover {
  color: var(--orange-dark);
}

.nav-cta {
  padding: 0.68rem 1rem;
  border: 1px solid rgba(255, 107, 0, 0.24);
  border-radius: 999px;
  color: var(--orange-dark);
  background: rgba(255, 107, 0, 0.07);
}

.section {
  position: relative;
  overflow: hidden;
  padding: clamp(4.6rem, 8vw, 7.5rem) 0;
}

.section-light {
  background:
    radial-gradient(circle at top left, rgba(255, 107, 0, 0.09), transparent 28rem),
    var(--cream);
}

.section-with-mark::before {
  content: "";
  position: absolute;
  z-index: 0;
  width: clamp(340px, 46vw, 760px);
  aspect-ratio: 1;
  background-image: url("mts_logo_250x250.png");
  background-repeat: no-repeat;
  background-position: center;
  background-size: contain;
  opacity: 0.055;
  pointer-events: none;
}

.section-with-mark > .container {
  position: relative;
  z-index: 1;
}

.hero {
  min-height: calc(100vh - 92px);
  display: flex;
  align-items: center;
  padding-top: clamp(5rem, 9vw, 8rem);
  padding-bottom: clamp(5rem, 9vw, 8rem);
  background:
    radial-gradient(circle at 84% 16%, rgba(255, 107, 0, 0.13), transparent 26rem),
    linear-gradient(180deg, #fff 0%, #fff8f2 100%);
}

.hero::before {
  right: -11vw;
  bottom: -17vw;
  width: clamp(460px, 58vw, 900px);
  opacity: 0.075;
}

.hero-inner {
  max-width: 1080px;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--orange-dark);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--navy);
  line-height: 1.04;
  letter-spacing: -0.025em;
}

h1 {
  max-width: 1100px;
  font-size: clamp(4.8rem, 13.5vw, 10.5rem);
  line-height: 0.84;
  xletter-spacing: -0.075em;
}

.hero h2 {
  max-width: 880px;
  margin-top: 1.8rem;
  font-size: clamp(1.8rem, 4.2vw, 4.4rem);
  line-height: 1.02;
}

h2 {
  font-size: clamp(2.25rem, 4.7vw, 4.25rem);
}

h3 {
  font-size: 1.28rem;
  letter-spacing: -0.025em;
}

p {
  margin: 1rem 0 0;
}

.lead {
  max-width: 840px;
  margin-top: 1.35rem;
  color: var(--navy-soft);
  font-size: clamp(1.15rem, 2.1vw, 1.5rem);
  line-height: 1.58;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2.2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0.84rem 1.25rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 900;
  text-decoration: none;
}

.button-primary {
  color: #fff;
  background: var(--orange);
  box-shadow: 0 16px 34px rgba(255, 107, 0, 0.24);
}

.button-primary:hover {
  background: var(--orange-dark);
}

.button-secondary {
  color: var(--navy);
  background: rgba(255, 255, 255, 0.75);
  border-color: var(--line);
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 2rem;
}

.hero-proof span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0.35rem 0.8rem;
  border: 1px solid rgba(255, 107, 0, 0.16);
  border-radius: 999px;
  color: var(--navy-muted);
  background: rgba(255, 255, 255, 0.68);
  font-size: 0.9rem;
  font-weight: 750;
}

.intro-section {
  background: #fff;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 5vw, 5.5rem);
  align-items: start;
}

.split-large {
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
}

.text-stack {
  color: var(--muted);
  font-size: 1.08rem;
}

.large-text {
  font-size: clamp(1.08rem, 1.55vw, 1.24rem);
}

.section-heading {
  max-width: 900px;
  margin-bottom: 2.7rem;
}

.section-heading p,
.narrow p,
.card p,
.use-case-grid p,
.text-stack p {
  color: var(--muted);
}

.mark-right::before {
  right: -15rem;
  top: 7rem;
  opacity: 0.055;
}

.cards {
  display: grid;
  gap: 1rem;
}

.cards-four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

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

.card,
.use-case-grid article {
  position: relative;
  padding: 1.55rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--soft-shadow);
}

.card-number {
  display: inline-flex;
  margin-bottom: 1.6rem;
  color: var(--orange-dark);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.14em;
}

.seo-section {
  background:
    linear-gradient(90deg, rgba(255, 107, 0, 0.06), transparent 44%),
    #fff;
}

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

.use-case-grid article {
  min-height: 220px;
}

.use-case-grid article::before {
  content: "";
  display: block;
  width: 34px;
  height: 3px;
  margin-bottom: 1.25rem;
  border-radius: 999px;
  background: var(--orange);
}

.section-accent {
  color: #fff;
  background:
    radial-gradient(circle at top right, rgba(255, 107, 0, 0.44), transparent 28rem),
    linear-gradient(135deg, var(--navy) 0%, #0c294b 100%);
}

.section-accent::before {
  right: -9rem;
  bottom: -16rem;
  opacity: 0.095;
  filter: grayscale(1) brightness(2.7);
}

.section-accent h2,
.section-accent h3,
.section-accent .eyebrow {
  color: #fff;
}

.section-accent .eyebrow {
  opacity: 0.78;
}

.section-accent p {
  color: rgba(255, 255, 255, 0.76);
}

.feature-card {
  min-height: 230px;
}

.final-cta {
  text-align: center;
  background: #fff;
}

.final-cta::before {
  left: 50%;
  bottom: -22rem;
  transform: translateX(-50%);
  opacity: 0.045;
}

.final-cta .button {
  margin-top: 2rem;
}

.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.footer-inner p {
  margin: 0;
}

@media (max-width: 1060px) {
  .cards-four {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 960px) {
  .header-inner,
  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 0.15rem;
  }

  .hero {
    min-height: auto;
  }

  h1 {
    font-size: clamp(4.4rem, 15vw, 8rem);
  }

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

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

@media (max-width: 640px) {
  .container,
  .narrow {
    width: min(100% - 1.25rem, var(--max));
  }

  .site-header {
    position: static;
  }

  .header-inner {
    min-height: auto;
    padding: 1rem 0;
  }

  .brand {
    width: 100%;
  }

  .nav {
    gap: 0.7rem;
    font-size: 0.84rem;
  }

  .section {
    padding: 4rem 0;
  }

  .hero {
    padding-top: 4rem;
    padding-bottom: 4.5rem;
  }

  h1 {
    font-size: clamp(3.9rem, 15vw, 6.5rem);
    letter-spacing: -0.045em;
  }

  .hero h2 {
    margin-top: 1.35rem;
  }

  .cards-four,
  .cards-two,
  .use-case-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .section-with-mark::before {
    width: 480px;
  }
}

@media (max-width: 400px) {
  h1 {
    font-size: clamp(3rem, 15vw, 4.5rem);
    letter-spacing: -0.045em;
  }
}