:root {
  --bg: #111318;
  --surface: #1b1e24;
  --surface-soft: #23262d;
  --light: #f7f1e8;
  --text: #f7f1e8;
  --text-dark: #111318;
  --muted: #8d96a8;
  --muted-dark: #5f6674;
  --accent: #d8923a;
  --gold: #f2b95b;
  --green: #3fbf7f;
  --line: rgba(247, 241, 232, 0.14);
  --line-dark: rgba(17, 19, 24, 0.14);
  --shadow: 0 18px 46px rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
}

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

a {
  color: inherit;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px clamp(18px, 5vw, 64px);
  background: rgba(17, 19, 24, 0.9);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  text-decoration: none;
}

.logo-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border-radius: 8px;
  background: var(--accent);
  color: var(--text-dark);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: #d5d9e3;
  font-size: 15px;
}

.main-nav a {
  text-decoration: none;
}

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

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.menu-toggle span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--text);
}

.hero {
  position: relative;
  min-height: 700px;
  display: grid;
  align-items: end;
  overflow: hidden;
}

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

.hero-media::after {
  position: absolute;
  inset: 0;
  content: "";
  background:
    linear-gradient(90deg, rgba(17, 19, 24, 0.96), rgba(17, 19, 24, 0.66) 48%, rgba(17, 19, 24, 0.12)),
    linear-gradient(0deg, rgba(17, 19, 24, 0.62), transparent 48%);
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-content {
  position: relative;
  max-width: 850px;
  padding: 0 clamp(18px, 5vw, 64px) 78px;
  color: #fff;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero .eyebrow,
.calculator-section .eyebrow {
  color: #ffd29f;
}

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

h1 {
  max-width: 820px;
  margin-bottom: 18px;
  font-size: clamp(38px, 6vw, 74px);
  line-height: 0.98;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.08;
}

h3 {
  margin-bottom: 10px;
  font-size: 22px;
  line-height: 1.18;
}

.hero-text {
  max-width: 660px;
  margin-bottom: 22px;
  color: rgba(255, 255, 255, 0.9);
  font-size: 19px;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 28px;
}

.hero-badges span {
  padding: 8px 11px;
  border: 1px solid rgba(242, 185, 91, 0.38);
  border-radius: 8px;
  background: rgba(27, 30, 36, 0.72);
  color: #ffe3b2;
  font-size: 14px;
  font-weight: 800;
}

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

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 900;
  text-decoration: none;
  cursor: pointer;
}

.button-primary {
  background: var(--accent);
  color: var(--text-dark);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--gold);
}

.button-secondary {
  border-color: rgba(255, 255, 255, 0.68);
  color: #fff;
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: rgba(255, 255, 255, 0.14);
}

.section {
  padding: 82px clamp(18px, 5vw, 64px);
}

.section-heading,
.calculator-copy,
.request-copy {
  max-width: 790px;
  margin-bottom: 34px;
}

.section-heading p:last-child,
.problem-grid p,
.system-grid p,
.calculator-copy p,
.tariffs .section-heading p,
.request-copy p,
.proof-strip span,
.steps-grid p,
.trust-grid p {
  color: var(--muted);
}

.problem,
.tariffs,
.request-section {
  background: var(--bg);
}

.solution,
.launch,
.trust {
  background: #16191f;
}

.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  background: var(--bg);
}

.proof-strip article {
  display: grid;
  gap: 6px;
  min-height: 150px;
  padding: 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.problem-grid,
.system-grid,
.tariff-grid,
.steps-grid,
.trust-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.problem-grid article,
.system-grid article,
.tariff-grid article,
.steps-grid article,
.trust-grid article,
.calculator,
.order-form,
.faq-list details {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.problem-grid article,
.system-grid article,
.steps-grid article,
.trust-grid article,
.tariff-grid article {
  padding: 24px;
}

.problem-grid span,
.steps-grid span {
  display: inline-flex;
  margin-bottom: 24px;
  color: var(--accent);
  font-weight: 900;
}

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

.system-grid article {
  min-height: 210px;
}

.calculator-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 0.8fr);
  gap: 46px;
  align-items: start;
  background: var(--bg);
  color: #fff;
}

.calculator-copy p {
  color: rgba(255, 255, 255, 0.76);
}

.calculator {
  display: grid;
  gap: 14px;
  padding: 24px;
  background: var(--light);
  color: var(--text-dark);
}

label {
  display: grid;
  gap: 7px;
  color: inherit;
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line-dark);
  border-radius: 8px;
  padding: 13px 14px;
  background: #fff;
  color: var(--text-dark);
  font: inherit;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  outline: 3px solid rgba(216, 146, 58, 0.22);
}

.results {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin-top: 10px;
}

.results div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 14px;
  border-radius: 8px;
  background: var(--bg);
  color: var(--text);
}

.results span {
  color: #b5bdca;
}

.results strong {
  color: var(--green);
  white-space: nowrap;
}

.calculator-note {
  margin: 0;
  color: var(--muted-dark);
  font-size: 14px;
}

.calculator-cta {
  width: 100%;
  margin-top: 6px;
}

.steps-grid article {
  min-height: 190px;
}

.tariff-grid .featured {
  border-color: rgba(216, 146, 58, 0.75);
  background: var(--surface-soft);
}

.tariff-name {
  margin-bottom: 8px;
  color: var(--accent);
  font-weight: 900;
}

.tariff-grid ul {
  display: grid;
  gap: 10px;
  padding-left: 18px;
  margin: 18px 0 0;
  color: var(--muted);
}

.tariff-link {
  display: inline-flex;
  margin-top: 20px;
  color: var(--gold);
  font-weight: 900;
  text-decoration: none;
}

.faq {
  background: var(--light);
  color: var(--text-dark);
}

.faq .eyebrow,
.faq-list p {
  color: var(--muted-dark);
}

.faq-list {
  display: grid;
  gap: 12px;
  max-width: 960px;
}

.faq-list details {
  padding: 18px 20px;
  background: #fff;
  border-color: var(--line-dark);
}

.faq-list summary {
  cursor: pointer;
  font-weight: 900;
}

.faq-list p {
  margin: 12px 0 0;
}

.request-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.75fr);
  gap: 38px;
  align-items: start;
}

.order-form {
  display: grid;
  gap: 16px;
  padding: 24px;
  background: var(--light);
  color: var(--text-dark);
  border-color: var(--line-dark);
}

.form-status {
  min-height: 24px;
  margin: 0;
  color: var(--green);
  font-weight: 900;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 26px clamp(18px, 5vw, 64px);
  background: #090a0d;
  color: #fff;
}

.mobile-sticky-cta {
  display: none;
}

@media (max-width: 980px) {
  .system-grid,
  .problem-grid,
  .tariff-grid,
  .steps-grid,
  .trust-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .calculator-section,
  .request-section {
    grid-template-columns: 1fr;
  }
}

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

  .main-nav {
    position: absolute;
    top: 100%;
    right: 18px;
    left: 18px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

  .main-nav.is-open {
    display: flex;
  }

  .main-nav a {
    padding: 12px;
  }

  .hero {
    min-height: 640px;
  }

  .hero-media::after {
    background: linear-gradient(0deg, rgba(17, 19, 24, 0.96), rgba(17, 19, 24, 0.54));
  }

  .hero-content {
    padding-bottom: 44px;
  }

  .proof-strip,
  .system-grid,
  .problem-grid,
  .tariff-grid,
  .steps-grid,
  .trust-grid {
    grid-template-columns: 1fr;
  }

  .section {
    padding-top: 58px;
    padding-bottom: 58px;
  }

  .mobile-sticky-cta {
    position: fixed;
    right: 14px;
    bottom: 14px;
    left: 14px;
    z-index: 20;
    display: inline-flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: var(--accent);
    color: var(--text-dark);
    font-weight: 900;
    text-decoration: none;
    box-shadow: 0 16px 34px rgba(0, 0, 0, 0.36);
  }
}

@media (max-width: 520px) {
  .hero-actions,
  .button {
    width: 100%;
  }

  .results div {
    display: grid;
  }

  .site-footer {
    flex-direction: column;
    padding-bottom: 84px;
  }
}