:root {
  --ink: #0f172a;
  --muted: #526173;
  --blue: #0ea5e9;
  --blue-dark: #075985;
  --orange: #f97316;
  --green: #10b981;
  --surface: #f0f9ff;
  --soft: #e7f5ff;
  --line: #d8e6ef;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(15, 23, 42, 0.14);
  --radius: 8px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Source Sans 3", Arial, sans-serif;
  color: var(--ink);
  background: var(--white);
  font-size: 17px;
  line-height: 1.55;
}

img, svg { display: block; }

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

.wrap {
  width: min(1160px, calc(100% - 40px));
  margin: 0 auto;
}

.top-strip {
  background: var(--blue-dark);
  color: var(--white);
  font-size: 15px;
  font-weight: 700;
}

.top-strip-inner {
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.top-strip a {
  color: #fff7ed;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 180ms ease;
}

.site-header.is-scrolled {
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.09);
}

.header-inner {
  height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand img {
  width: 205px;
  height: auto;
}

.desktop-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  color: #243449;
  font-size: 16px;
  font-weight: 700;
}

.desktop-nav a:hover,
.footer-grid a:hover {
  color: var(--blue-dark);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.phone-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  color: var(--blue-dark);
}

.phone-link svg,
.menu-toggle svg,
.btn svg,
.icon-box svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 12px 18px;
  border: 0;
  border-radius: var(--radius);
  font-family: "Lexend", Arial, sans-serif;
  font-size: 15px;
  font-weight: 800;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  color: var(--white);
  background: var(--orange);
  box-shadow: 0 10px 22px rgba(249, 115, 22, 0.28);
}

.btn-primary:hover {
  background: #ea580c;
}

.btn-whatsapp {
  color: var(--white);
  background: #16a34a;
}

.btn-light {
  color: var(--blue-dark);
  background: var(--white);
}

.btn-lg {
  min-height: 54px;
  padding: 15px 22px;
}

.btn-block {
  width: 100%;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--ink);
}

.mobile-nav {
  display: none;
  border-top: 1px solid var(--line);
  background: var(--white);
}

.hero {
  background:
    linear-gradient(90deg, rgba(240, 249, 255, 0.95), rgba(255, 255, 255, 0.8)),
    url("media/chat-demo-2.webp") center right / contain no-repeat;
  padding: 74px 0 70px;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.07fr) minmax(340px, 0.66fr);
  gap: 36px;
  align-items: start;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  color: var(--blue-dark);
  font-family: "Lexend", Arial, sans-serif;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1, h2, h3 {
  font-family: "Lexend", Arial, sans-serif;
  letter-spacing: 0;
  line-height: 1.08;
  margin: 0;
}

h1 {
  max-width: 740px;
  margin-top: 14px;
  font-size: clamp(42px, 6vw, 68px);
}

h2 {
  font-size: clamp(32px, 4.2vw, 48px);
}

h3 {
  font-size: 22px;
}

.hero-lead {
  max-width: 700px;
  color: var(--muted);
  font-size: 22px;
  margin: 22px 0 0;
}

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

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.trust-row span {
  padding: 8px 12px;
  border: 1px solid #bae6fd;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  color: #164e63;
  font-size: 15px;
  font-weight: 800;
}

.quote-panel {
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
  overflow: hidden;
}

.quote-head {
  padding: 22px 24px;
  color: var(--white);
  background: linear-gradient(135deg, var(--blue-dark), #0f172a);
}

.quote-head p {
  margin: 0 0 5px;
  color: #bae6fd;
  font-weight: 800;
  text-transform: uppercase;
  font-size: 13px;
}

.quote-head strong {
  display: block;
  font-family: "Lexend", Arial, sans-serif;
  font-size: 21px;
  line-height: 1.25;
}

.lead-form {
  display: grid;
  gap: 14px;
  padding: 22px 24px 24px;
}

label {
  display: grid;
  gap: 6px;
  color: #243449;
  font-size: 15px;
  font-weight: 800;
}

input, select, textarea {
  width: 100%;
  border: 1px solid #cbd9e4;
  border-radius: var(--radius);
  background: #fbfdff;
  color: var(--ink);
  font: inherit;
  min-height: 46px;
  padding: 11px 12px;
}

textarea { resize: vertical; }

input:focus, select:focus, textarea:focus {
  outline: 3px solid rgba(14, 165, 233, 0.16);
  border-color: var(--blue);
}

[aria-invalid="true"] {
  border-color: #dc2626;
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  text-align: center;
}

.form-note a {
  color: var(--blue-dark);
  font-weight: 800;
}

.form-success {
  display: none;
  margin: 0;
  padding: 10px 12px;
  border-radius: var(--radius);
  background: #dcfce7;
  color: #166534;
  font-weight: 800;
}

.form-success.is-visible {
  display: block;
}

.proof-strip {
  background: var(--ink);
  color: var(--white);
}

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

.proof-grid div {
  padding: 25px 20px;
  border-left: 1px solid rgba(255, 255, 255, 0.13);
}

.proof-grid div:first-child {
  border-left: 0;
}

.proof-grid strong {
  display: block;
  font-family: "Lexend", Arial, sans-serif;
  font-size: 34px;
}

.proof-grid span {
  color: #cbd5e1;
  font-weight: 700;
}

.section {
  padding: 86px 0;
}

.section-head {
  max-width: 760px;
}

.section-head h2,
.visual-copy h2,
.faq-grid h2,
.media-grid h2 {
  margin-top: 10px;
}

.section-head p,
.visual-copy p,
.faq-grid p,
.media-grid p {
  color: var(--muted);
  font-size: 20px;
  margin: 16px 0 0;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 34px;
}

.service-card {
  min-height: 248px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

.service-card.highlight {
  border-color: #fed7aa;
  background: #fff7ed;
}

.icon-box {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  color: var(--blue-dark);
  background: var(--soft);
  border-radius: var(--radius);
  margin-bottom: 18px;
}

.service-card.highlight .icon-box {
  color: #c2410c;
  background: #ffedd5;
}

.service-card p {
  color: var(--muted);
  margin: 12px 0 0;
}

.visual-section {
  background: var(--surface);
}

.visual-grid,
.media-grid,
.faq-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
  gap: 44px;
  align-items: center;
}

.check-list {
  display: grid;
  gap: 12px;
  padding: 0;
  margin: 24px 0 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 28px;
  color: #243449;
  font-weight: 700;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: inset 0 0 0 4px #d1fae5;
}

.ops-board {
  display: grid;
  gap: 14px;
  padding: 18px;
  border: 1px solid #c7e5f7;
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: var(--shadow);
}

.ops-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 4px;
  color: var(--muted);
  font-weight: 800;
}

.ops-top strong {
  color: var(--blue-dark);
}

.ops-card {
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.ops-card span,
.ops-card small {
  display: block;
  color: var(--muted);
  font-weight: 700;
}

.ops-card strong {
  display: block;
  margin: 3px 0;
  font-family: "Lexend", Arial, sans-serif;
  font-size: 20px;
}

.ops-card.green { background: #ecfdf5; border-color: #bbf7d0; }
.ops-card.blue { background: #eff6ff; border-color: #bfdbfe; }
.ops-card.orange { background: #fff7ed; border-color: #fed7aa; }

.message-preview img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.guarantee-band {
  padding: 42px 0;
  background: linear-gradient(135deg, var(--blue-dark), var(--ink));
  color: var(--white);
}

.guarantee-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.guarantee-inner h2 {
  max-width: 760px;
  margin-top: 8px;
  font-size: clamp(28px, 3.2vw, 42px);
}

.guarantee-inner .eyebrow {
  color: #bae6fd;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 34px;
}

.process-grid article {
  padding: 24px;
  border-left: 4px solid var(--blue);
  border-radius: var(--radius);
  background: var(--surface);
}

.process-grid span {
  display: block;
  color: var(--orange);
  font-family: "Lexend", Arial, sans-serif;
  font-weight: 800;
  margin-bottom: 18px;
}

.process-grid p,
.testimonial-grid p,
.site-footer p {
  color: var(--muted);
}

.media-proof {
  background: #fbfdff;
}

.media-grid img {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

audio {
  width: 100%;
  margin-top: 24px;
}

.testimonials {
  background: var(--surface);
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 34px;
}

blockquote {
  margin: 0;
  padding: 24px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--line);
}

blockquote p {
  margin: 0;
  font-size: 20px;
}

cite {
  display: block;
  margin-top: 18px;
  color: var(--blue-dark);
  font-style: normal;
  font-weight: 800;
}

.faq-grid {
  align-items: start;
}

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

details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
}

summary {
  cursor: pointer;
  padding: 18px 20px;
  font-family: "Lexend", Arial, sans-serif;
  font-weight: 800;
}

details p {
  padding: 0 20px 20px;
  margin: 0;
  color: var(--muted);
}

.site-footer {
  padding: 52px 0 92px;
  color: #dbeafe;
  background: var(--ink);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 34px;
}

.footer-logo {
  width: 190px;
  padding: 8px;
  border-radius: var(--radius);
  background: var(--white);
}

.footer-grid h3 {
  margin-bottom: 14px;
  color: var(--white);
  font-size: 18px;
}

.footer-grid a {
  display: block;
  color: #dbeafe;
  margin: 8px 0;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 28px;
  margin-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.sticky-cta {
  position: fixed;
  left: 50%;
  bottom: 14px;
  z-index: 30;
  display: none;
  grid-template-columns: repeat(3, 1fr);
  width: min(420px, calc(100% - 28px));
  transform: translateX(-50%);
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.22);
}

.sticky-cta a {
  display: grid;
  place-items: center;
  min-height: 48px;
  color: var(--white);
  background: var(--blue-dark);
  font-family: "Lexend", Arial, sans-serif;
  font-size: 14px;
  font-weight: 800;
  border-left: 1px solid rgba(255, 255, 255, 0.16);
}

.sticky-cta a:first-child { border-left: 0; }
.sticky-cta a:nth-child(2) { background: #16a34a; }
.sticky-cta a:nth-child(3) { background: var(--orange); }

@media (max-width: 1040px) {
  .desktop-nav,
  .phone-link span,
  .header-actions .btn {
    display: none;
  }

  .menu-toggle {
    display: grid;
  }

  .mobile-nav.is-open {
    display: grid;
    gap: 2px;
    padding: 10px 20px 18px;
  }

  .mobile-nav a {
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
    font-weight: 800;
  }

  .hero-grid,
  .visual-grid,
  .media-grid,
  .faq-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 720px) {
  body {
    font-size: 16px;
  }

  .wrap {
    width: min(100% - 28px, 1160px);
  }

  .top-strip-inner {
    justify-content: center;
    text-align: center;
  }

  .top-strip a {
    display: none;
  }

  .header-inner {
    height: 68px;
  }

  .brand img {
    width: 166px;
  }

  .hero {
    padding: 52px 0;
    background: linear-gradient(180deg, var(--surface), var(--white));
  }

  h1 {
    font-size: 40px;
  }

  .hero-lead,
  .section-head p,
  .visual-copy p,
  .faq-grid p,
  .media-grid p {
    font-size: 18px;
  }

  .hero-actions {
    display: grid;
  }

  .quote-panel {
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.11);
  }

  .proof-grid,
  .service-grid,
  .process-grid,
  .testimonial-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .proof-grid div {
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.13);
  }

  .proof-grid div:first-child {
    border-top: 0;
  }

  .section {
    padding: 64px 0;
  }

  .service-card {
    min-height: auto;
  }

  .guarantee-inner,
  .footer-bottom {
    display: grid;
  }

  .site-footer {
    padding-bottom: 104px;
  }

  .sticky-cta {
    display: grid;
  }
}