:root {
  --ink: #16201d;
  --muted: #5c6761;
  --paper: #fbfaf6;
  --surface: #ffffff;
  --line: #e4e0d6;
  --green: #1f6b4c;
  --green-dark: #154733;
  --mint: #dceee3;
  --amber: #c98a2c;
  --coral: #c86d4e;
  --shadow: 0 22px 55px rgba(22, 32, 29, 0.12);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, Arial, sans-serif;
  line-height: 1.5;
}

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

a {
  color: inherit;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 56px);
  color: #fff;
  transition: background 180ms ease, box-shadow 180ms ease, color 180ms ease;
}

.site-header.is-scrolled,
.site-header.is-open {
  background: rgba(251, 250, 246, 0.94);
  color: var(--ink);
  box-shadow: 0 10px 30px rgba(22, 32, 29, 0.08);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  text-decoration: none;
}

.brand img {
  width: clamp(142px, 18vw, 206px);
  height: auto;
  filter: invert(1);
  transition: filter 180ms ease;
}

.site-header.is-scrolled .brand img,
.site-header.is-open .brand img {
  filter: none;
}

.brand-ai {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 28px;
  padding: 0 8px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 16px;
  font-weight: 700;
}

.nav-menu a {
  padding: 8px 6px;
  text-decoration: none;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid currentColor;
  border-radius: 50%;
  background: transparent;
  color: inherit;
}

.nav-toggle span {
  display: block;
  width: 17px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
}

.hero {
  position: relative;
  min-height: 66vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(8, 18, 15, 0.86) 0%, rgba(8, 18, 15, 0.68) 43%, rgba(8, 18, 15, 0.3) 76%),
    linear-gradient(180deg, rgba(8, 18, 15, 0.12), rgba(8, 18, 15, 0.28)),
    url("assets/hero-premium-tech.png") center / cover no-repeat;
  color: #fff;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 36%;
  background: linear-gradient(180deg, rgba(251, 250, 246, 0), var(--paper));
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: min(620px, calc(100% - 36px));
  margin-left: clamp(18px, 7vw, 96px);
  padding-top: 54px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--amber);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.hero .eyebrow {
  color: #f3bd69;
  font-size: 12px;
  line-height: 1.2;
  letter-spacing: 0.08em;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0;
  max-width: 590px;
  font-size: clamp(38px, 3.2vw, 52px);
  line-height: 1.08;
  letter-spacing: 0;
  white-space: normal;
}

h2 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(32px, 5vw, 58px);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin: 0 0 10px;
  font-size: 20px;
  line-height: 1.2;
}

.hero-copy {
  width: min(590px, 100%);
  margin: 22px 0 0;
  font-size: clamp(18px, 1.1vw, 20px);
  line-height: 1.42;
  color: rgba(255, 255, 255, 0.9);
}

.hero-dashboard {
  position: absolute;
  top: 50%;
  right: clamp(32px, 7vw, 112px);
  z-index: 2;
  width: min(316px, 25vw);
  transform: translateY(-24%);
  padding: 7px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.62);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(12px);
}

.dashboard-main {
  padding: 22px;
  border-radius: 13px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.86), rgba(246, 250, 247, 0.74)),
    rgba(255, 255, 255, 0.78);
}

.dashboard-kicker {
  display: block;
  margin-bottom: 20px;
  color: var(--green-dark);
  font-size: 20px;
  font-weight: 800;
  line-height: 1.1;
}

.dashboard-grid {
  display: grid;
  gap: 14px;
}

.dashboard-grid span {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 24px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
}

.dashboard-grid span::before {
  content: "✓";
  display: grid;
  width: 19px;
  height: 19px;
  flex: 0 0 19px;
  place-items: center;
  border-radius: 50%;
  background: rgba(31, 107, 76, 0.12);
  color: var(--green-dark);
  font-size: 12px;
  font-weight: 900;
}

.dashboard-main small {
  display: block;
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid rgba(22, 32, 29, 0.1);
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.hero-actions,
.contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.hero-actions {
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 13px 20px;
  border-radius: var(--radius);
  font-weight: 800;
  text-decoration: none;
  transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--green);
  color: #fff;
  box-shadow: 0 12px 24px rgba(31, 107, 76, 0.24);
}

.btn-primary:hover {
  background: var(--green-dark);
}

.btn-secondary {
  background: #fff;
  color: var(--green-dark);
  box-shadow: 0 12px 24px rgba(255, 255, 255, 0.12);
}

.section {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 64px 0;
  scroll-margin-top: 56px;
}

.problems {
  padding-top: 42px;
}

.section-heading {
  margin-bottom: 24px;
}

.problems .section-heading {
  margin-bottom: 20px;
}

.problems h2 {
  max-width: none;
  font-size: clamp(30px, 3.4vw, 44px);
  white-space: nowrap;
}

.section-intro {
  max-width: 700px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.48;
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 34px;
  color: var(--muted);
  font-size: 19px;
}

.problem-list,
.service-grid,
.plan-grid {
  display: grid;
  gap: 14px;
}

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

.service-grid,
.plan-grid {
  grid-template-columns: repeat(3, 1fr);
}

.problem-list article,
.service-grid article,
.plan {
  min-height: 164px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.problem-list article {
  display: flex;
  flex-direction: column;
}

.problem-list p,
.service-grid p,
.plan p,
.plan li,
.atendimento-copy p,
.faq p,
.contact p,
.steps span {
  color: var(--muted);
}

.problem-list article {
  min-height: 142px;
  justify-content: flex-start;
}

.problem-list h3 {
  max-width: 240px;
  font-size: 18px;
}

.atendimento-demo {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.62fr);
  align-items: center;
  gap: clamp(28px, 6vw, 70px);
}

.atendimento-copy p {
  max-width: 620px;
  font-size: 18px;
}

.text-link {
  display: inline-flex;
  margin-top: 12px;
  color: var(--green);
  font-weight: 800;
  text-decoration: none;
}

.phone-demo {
  max-width: 390px;
  min-height: 620px;
  justify-self: center;
  padding: 18px;
  border: 10px solid #1d2522;
  border-radius: 38px;
  background: #eef2eb;
  box-shadow: var(--shadow);
}

.phone-top {
  width: 96px;
  height: 7px;
  margin: 0 auto 22px;
  border-radius: 999px;
  background: #303a36;
}

.chat {
  display: flex;
  min-height: 540px;
  flex-direction: column;
  justify-content: flex-end;
  gap: 12px;
}

.message {
  max-width: 86%;
  margin: 0;
  padding: 12px 14px;
  border-radius: 18px;
  font-size: 14px;
}

.incoming {
  align-self: flex-start;
  background: #fff;
}

.outgoing {
  align-self: flex-end;
  background: #cfe8d7;
}

.process {
  width: min(1120px, calc(100% - 32px));
  padding: 24px 0 64px;
}

.process-strip {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 28px;
  align-items: center;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.process-strip h2 {
  max-width: 520px;
  font-size: clamp(26px, 3vw, 38px);
}

.plans h2 {
  max-width: 650px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  min-height: 112px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfaf6;
}

.steps strong,
.steps span {
  display: block;
}

.steps strong {
  margin-bottom: 8px;
}

.plan {
  position: relative;
}

.featured {
  border-color: rgba(31, 107, 76, 0.45);
  box-shadow: var(--shadow);
}

.plan-badge {
  display: inline-flex;
  margin-bottom: 16px;
  padding: 7px 10px;
  border-radius: 999px;
  background: var(--mint);
  color: var(--green-dark);
  font-size: 12px;
  font-weight: 800;
}

.plan ul {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.plan li {
  padding-left: 22px;
  position: relative;
}

.plan li::before {
  content: "";
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
}

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

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

summary {
  cursor: pointer;
  padding: 20px 22px;
  font-weight: 800;
}

details p {
  margin: 0;
  padding: 0 22px 22px;
}

.contact {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto 72px;
  justify-content: space-between;
  padding: clamp(28px, 5vw, 52px);
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
  scroll-margin-top: 112px;
}

.contact p {
  max-width: 690px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 18px;
}

.contact h2 {
  max-width: 780px;
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  padding: 26px clamp(18px, 4vw, 56px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

.site-footer span:first-child {
  color: var(--ink);
  font-weight: 800;
}

.site-footer span:last-child {
  grid-column: 2;
  text-align: center;
}

.footer-social {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 10px;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 50%;
  transition: color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.social-link:hover {
  color: var(--green);
  border-color: rgba(29, 122, 85, 0.35);
  transform: translateY(-1px);
}

.social-link svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@media (max-width: 900px) {
  .nav-toggle {
    display: block;
  }

  .nav-menu {
    position: absolute;
    top: 100%;
    left: 16px;
    right: 16px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--ink);
    box-shadow: var(--shadow);
  }

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

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

  .hero {
    min-height: auto;
    align-items: flex-start;
    padding: 104px 0 58px;
    background-position: 62% center;
  }

  .hero-content {
    width: min(720px, calc(100% - 36px));
    margin-left: 18px;
    padding-top: 0;
  }

  .hero-dashboard {
    position: relative;
    top: auto;
    right: auto;
    width: min(520px, calc(100% - 36px));
    margin: 28px 18px 0;
    transform: none;
  }

  .problem-list,
  .service-grid,
  .plan-grid,
  .steps,
  .intro-grid,
  .atendimento-demo {
    grid-template-columns: 1fr;
  }

  .process-strip {
    grid-template-columns: 1fr;
    padding: 22px;
  }

  .problem-list article,
  .service-grid article,
  .plan,
  .steps li {
    min-height: auto;
  }

  .section {
    padding: 52px 0;
  }

  .problems {
    padding-top: 36px;
  }

  .process {
    padding: 18px 0 52px;
  }
}

@media (max-width: 560px) {
  html {
    scroll-padding-top: 88px;
  }

  .site-header {
    padding: 14px 16px;
  }

  .section,
  .contact {
    scroll-margin-top: 88px;
  }

  .brand img {
    width: 132px;
  }

  .site-footer {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }

  .site-footer span:last-child {
    grid-column: auto;
  }

  .footer-social {
    justify-self: center;
  }

  .hero {
    padding: 98px 0 52px;
    background-position: 58% center;
  }

  h1 {
    font-size: clamp(34px, 9.5vw, 44px);
  }

  .hero-copy {
    font-size: 17px;
  }

  .problems h2 {
    font-size: clamp(28px, 8vw, 38px);
    white-space: normal;
  }

  .hero-dashboard {
    display: none;
  }

  .dashboard-main {
    padding: 22px;
  }

  .dashboard-kicker {
    font-size: 21px;
  }

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

  .hero-actions,
  .contact {
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .phone-demo {
    width: 100%;
    min-height: 560px;
    border-width: 8px;
  }

  .chat {
    min-height: 486px;
  }
}