:root {
  --blue: #0f4d83;
  --blue-dark: #103454;
  --red: #d9342b;
  --amber: #f2b705;
  --ink: #172230;
  --muted: #637386;
  --line: #dbe5ee;
  --surface: #ffffff;
  --soft: #f3f7fb;
  --shadow: 0 22px 60px rgba(16, 52, 84, 0.16);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
}

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

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 12px clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(219, 229, 238, 0.86);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand img {
  width: 46px;
  height: 46px;
  object-fit: contain;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.1;
}

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

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 700;
}

.site-nav a {
  transition: color 0.2s ease;
}

.site-nav a:hover {
  color: var(--blue);
}

.nav-cta {
  color: #fff !important;
  background: var(--red);
  border-radius: 8px;
  padding: 10px 18px;
}

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

.menu-button span:not(.sr-only) {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--blue);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(340px, 0.86fr);
  gap: clamp(32px, 6vw, 72px);
  align-items: center;
  min-height: calc(100vh - 76px);
  padding: clamp(56px, 8vw, 104px) clamp(20px, 5vw, 72px) 64px;
  background:
    linear-gradient(120deg, rgba(15, 77, 131, 0.98), rgba(16, 52, 84, 0.94)),
    url("logo_sisba.png");
  background-size: cover, 360px;
  background-position: center, right 8% center;
  background-repeat: no-repeat;
}

.hero h1 {
  max-width: 820px;
  margin: 0;
  color: #fff;
  font-size: clamp(38px, 5.6vw, 72px);
  line-height: 1;
  letter-spacing: 0;
}

.hero-text {
  max-width: 700px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: clamp(17px, 1.7vw, 21px);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--red);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #ffd9d6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 12px 20px;
  font-weight: 850;
}

.button.primary {
  color: #fff;
  background: var(--red);
  box-shadow: 0 14px 32px rgba(217, 52, 43, 0.28);
}

.button.secondary {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.34);
}

.product-preview {
  padding: 22px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.preview-top {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.preview-top span {
  color: var(--blue);
  font-weight: 900;
}

.preview-top strong {
  color: var(--red);
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 18px 0;
}

.preview-grid div {
  padding: 14px;
  background: var(--soft);
  border-radius: 8px;
}

.preview-grid small {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.preview-grid strong {
  color: var(--blue-dark);
  font-size: 30px;
  line-height: 1.2;
}

.preview-map {
  position: relative;
  height: 190px;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(15, 77, 131, 0.08) 1px, transparent 1px),
    linear-gradient(rgba(15, 77, 131, 0.08) 1px, transparent 1px),
    linear-gradient(145deg, #e9f2fa, #f8fbfd);
  background-size: 32px 32px, 32px 32px, auto;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.pin {
  position: absolute;
  width: 16px;
  height: 16px;
  background: var(--red);
  border: 3px solid #fff;
  border-radius: 50%;
  box-shadow: 0 0 0 8px rgba(217, 52, 43, 0.14);
}

.pin-a {
  top: 38px;
  left: 28%;
}

.pin-b {
  top: 110px;
  left: 58%;
}

.pin-c {
  top: 76px;
  left: 76%;
  background: var(--amber);
}

.preview-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.preview-list p {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.preview-list span {
  width: 9px;
  height: 9px;
  background: var(--blue);
  border-radius: 50%;
}

.section,
.contact {
  padding: clamp(56px, 8vw, 96px) clamp(20px, 5vw, 72px);
}

.intro {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 6vw, 80px);
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.intro > p {
  margin: 0;
  color: var(--muted);
  font-size: 18px;
}

.section-heading {
  max-width: 820px;
  margin-bottom: 32px;
}

h2 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  color: var(--ink);
  font-size: 22px;
  line-height: 1.2;
}

.modules {
  background: var(--soft);
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.module-grid article {
  min-height: 245px;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 34px rgba(16, 52, 84, 0.06);
}

.module-grid span {
  display: inline-flex;
  margin-bottom: 34px;
  color: var(--red);
  font-size: 14px;
  font-weight: 900;
}

.module-grid p,
.field-copy p,
.field-cards span,
.report-list p,
.contact-copy p {
  margin: 0;
  color: var(--muted);
}

.field {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 6vw, 80px);
  background: var(--blue-dark);
}

.field h2,
.field .eyebrow {
  color: #fff;
}

.field-copy p {
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.76);
  font-size: 18px;
}

.field-cards {
  display: grid;
  gap: 14px;
}

.field-cards article {
  display: grid;
  gap: 8px;
  padding: 22px;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
}

.field-cards span {
  color: rgba(255, 255, 255, 0.76);
}

.reports {
  background: #fff;
}

.report-list {
  display: grid;
  grid-template-columns: 1fr;
  border-top: 1px solid var(--line);
}

.report-list article {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 32px;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
}

.audience {
  background: linear-gradient(180deg, var(--soft), #fff);
}

.audience-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.audience-list li {
  min-height: 132px;
  padding: 20px;
  color: var(--blue-dark);
  background: #fff;
  border: 1px solid var(--line);
  border-left: 4px solid var(--red);
  border-radius: 8px;
  font-weight: 850;
  box-shadow: 0 12px 34px rgba(16, 52, 84, 0.06);
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(320px, 1fr);
  gap: clamp(32px, 7vw, 90px);
  background: linear-gradient(135deg, var(--blue), var(--blue-dark));
}

.contact h2,
.contact .eyebrow {
  color: #fff;
}

.contact-copy p {
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 18px;
}

.contact-links {
  display: grid;
  gap: 12px;
  margin-top: 32px;
  color: #fff;
  font-weight: 850;
}

.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 24px;
  background: #fff;
  border-radius: 8px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 850;
}

.contact-form .full {
  grid-column: 1 / -1;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--ink);
  background: #fff;
}

.contact-form textarea {
  resize: vertical;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 26px clamp(20px, 5vw, 72px);
  color: var(--muted);
  border-top: 1px solid var(--line);
}

.site-footer strong {
  color: var(--ink);
}

.site-footer a {
  color: var(--blue);
  font-weight: 850;
}

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

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

@media (max-width: 920px) {
  .hero,
  .intro,
  .field,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }
}

@media (max-width: 760px) {
  .brand small {
    display: none;
  }

  .menu-button {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 76px;
    right: 16px;
    left: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    padding: 14px;
  }

  .nav-cta {
    text-align: center;
  }

  .module-grid,
  .report-list article,
  .audience-list,
  .contact-form,
  .site-footer {
    grid-template-columns: 1fr;
  }

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

  .site-footer {
    display: grid;
  }
}

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

  .product-preview {
    padding: 16px;
  }
}