:root {
  --bg: #07111f;
  --bg-soft: #0d1b2e;
  --card: rgba(255, 255, 255, 0.08);
  --card-strong: rgba(255, 255, 255, 0.14);
  --text: #f7fbff;
  --muted: #b9c6d6;
  --line: rgba(255, 255, 255, 0.14);
  --primary: #4ee1a0;
  --primary-dark: #1fb978;
  --accent: #5aa9ff;
  --warning: #ffd166;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
  --radius: 24px;
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(78, 225, 160, 0.18), transparent 34rem),
    radial-gradient(circle at top right, rgba(90, 169, 255, 0.18), transparent 32rem),
    var(--bg);
  line-height: 1.6;
}

body.menu-open {
  overflow: hidden;
}

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

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

button,
input,
select,
textarea {
  font: inherit;
}

.skip-link,
.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;
}

.skip-link:focus {
  width: auto;
  height: auto;
  clip: auto;
  margin: 1rem;
  padding: 0.75rem 1rem;
  background: var(--primary);
  color: #04100b;
  border-radius: 999px;
  z-index: 1000;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 17, 31, 0.78);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.brand img {
  width: 44px;
  height: 44px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-weight: 600;
}

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

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--primary);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  cursor: pointer;
}

.nav-toggle span:not(.sr-only) {
  display: block;
  width: 20px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
  border-radius: 999px;
  transition: transform 180ms ease, opacity 180ms ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(4) {
  transform: translateY(-6px) rotate(-45deg);
}

.section {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
  padding: 6rem 0;
}

.hero {
  min-height: calc(100vh - 78px);
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  align-items: center;
  gap: 4rem;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--primary);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 1.25rem;
  font-size: clamp(3rem, 7vw, 6.8rem);
  line-height: 0.92;
  letter-spacing: -0.08em;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1;
  letter-spacing: -0.055em;
}

h3 {
  margin-bottom: 0.65rem;
  font-size: 1.25rem;
  line-height: 1.2;
}

.hero-copy,
.section-heading p,
.card p,
.timeline-item p,
.work-item p,
.contact-card p,
.footer p {
  color: var(--muted);
}

.hero-copy {
  max-width: 700px;
  font-size: clamp(1.05rem, 2vw, 1.3rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.85rem 1.2rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button.primary {
  background: var(--primary);
  color: #03120b;
  box-shadow: 0 16px 36px rgba(78, 225, 160, 0.25);
}

.button.primary:hover,
.button.primary:focus-visible {
  background: #75efb9;
}

.button.secondary {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.06);
}

.hero-panel {
  position: relative;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 10px);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.04)),
    url("images/hero-grid.svg") center / cover;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: -20% auto auto -18%;
  width: 16rem;
  aspect-ratio: 1;
  background: rgba(78, 225, 160, 0.25);
  filter: blur(50px);
  border-radius: 999px;
}

.panel-card,
.capability-grid > div,
.stat,
.card,
.timeline-item,
.work-item,
.contact-card {
  border: 1px solid var(--line);
  background: var(--card);
  backdrop-filter: blur(14px);
}

.panel-card-main {
  position: relative;
  min-height: 330px;
  padding: 2rem;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.panel-card-main::after {
  content: "SVR";
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  color: rgba(255, 255, 255, 0.09);
  font-size: clamp(4.5rem, 10vw, 8rem);
  font-weight: 900;
  letter-spacing: -0.08em;
}

.panel-kicker {
  color: var(--warning);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.8rem;
}

.panel-card-main strong {
  max-width: 430px;
  margin-top: 0.8rem;
  font-size: clamp(2rem, 4vw, 3.7rem);
  line-height: 0.94;
  letter-spacing: -0.055em;
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.capability-grid > div {
  min-height: 112px;
  padding: 1rem;
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.capability-grid span {
  color: var(--primary);
  font-weight: 800;
  font-size: 0.85rem;
}

.capability-grid strong {
  font-size: 0.95rem;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  padding-top: 0;
}

.stat {
  padding: 1.4rem;
  border-radius: 22px;
}

.stat strong {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 1.1rem;
}

.stat span {
  color: var(--muted);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 2.2rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.card {
  padding: 1.35rem;
  border-radius: var(--radius);
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.card:hover {
  transform: translateY(-6px);
  border-color: rgba(78, 225, 160, 0.38);
  background: var(--card-strong);
}

.icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1.5rem;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: rgba(78, 225, 160, 0.14);
  color: var(--primary);
  font-weight: 900;
  font-size: 1.35rem;
}

.split {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 4rem;
  align-items: start;
}

.split .section-heading {
  position: sticky;
  top: 7rem;
}

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

.timeline-item {
  padding: 1.25rem;
  border-radius: 22px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
}

.timeline-item > span {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--accent);
  color: #03101e;
  font-weight: 900;
}

.work {
  padding-top: 2rem;
}

.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.work-item {
  min-height: 250px;
  padding: 1.35rem;
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background:
    linear-gradient(180deg, rgba(90, 169, 255, 0.06), rgba(78, 225, 160, 0.1)),
    var(--card);
}

.contact {
  padding-top: 2rem;
}

.contact-card {
  padding: clamp(1.2rem, 4vw, 3rem);
  border-radius: calc(var(--radius) + 8px);
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3rem;
  box-shadow: var(--shadow);
}

.contact-email a {
  color: var(--primary);
  font-weight: 800;
}

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

.contact-form label {
  display: grid;
  gap: 0.4rem;
  color: var(--muted);
  font-weight: 700;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 0.9rem 1rem;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  outline: none;
}

.contact-form select option {
  color: #07111f;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(78, 225, 160, 0.14);
}

.contact-form textarea {
  resize: vertical;
}

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

.footer {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  color: var(--muted);
}

.footer strong,
.footer a {
  color: var(--text);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 560ms ease, transform 560ms ease;
}

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

@media (max-width: 980px) {
  .hero,
  .split,
  .contact-card {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 4rem;
  }

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

  .split .section-heading {
    position: static;
  }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    inset: 77px 1rem auto 1rem;
    padding: 1rem;
    border: 1px solid var(--line);
    border-radius: 22px;
    display: grid;
    gap: 0.25rem;
    background: rgba(7, 17, 31, 0.96);
    box-shadow: var(--shadow);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 180ms ease, transform 180ms ease;
  }

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

  .nav-links a {
    display: block;
    padding: 0.9rem;
    border-radius: 14px;
  }

  .nav-links a:hover,
  .nav-links a:focus-visible {
    background: rgba(255, 255, 255, 0.06);
  }

  .section {
    width: min(100% - 1.25rem, var(--max-width));
    padding: 4rem 0;
  }

  .stats,
  .work-grid,
  .cards {
    grid-template-columns: 1fr;
  }

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

  .panel-card-main {
    min-height: 280px;
  }

  .footer {
    flex-direction: column;
  }
}

@media (max-width: 460px) {
  .brand span {
    font-size: 0.86rem;
  }

  .hero-actions .button {
    width: 100%;
  }

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