:root {
  --bg: #f8fafc;
  --text: #0f172a;
  --muted: #526071;
  --primary: #2563eb;
  --primary-dark: #0f172a;
  --accent: #22c55e;
  --card: #ffffff;
  --border: rgba(15, 23, 42, 0.08);
  --shadow: 0 18px 40px rgba(15, 23, 42, 0.12);
  --page-bg: radial-gradient(circle at top, #eef2ff 0%, #ffffff 60%);
  --nav-bg: rgb(255, 255, 255);
  --section-muted: #f1f5f9;
  --tag-bg: #eff6ffc0;
  --tag-text: #1e3a8a;
  --tag-border: rgba(30, 58, 138, 0.15);
  --tag-primary-bg: #1d4ed8;
  --tag-primary-text: #ffffff;
  --footer-bg: #0b1324;
  --footer-text: #cbd5f5;
}

html[data-theme="dark"] {
  --bg: #0b1220;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --primary: #60a5fa;
  --primary-dark: #0b1220;
  --accent: #34d399;
  --card: #0f172a;
  --border: rgba(148, 163, 184, 0.2);
  --shadow: 0 18px 40px rgba(2, 6, 23, 0.55);
  --page-bg: radial-gradient(circle at top, #0b1220 0%, #020617 70%);
  --nav-bg: rgba(2, 6, 23, 0.85);
  --section-muted: #0b1324;
  --tag-bg: rgba(59, 130, 246, 0.2);
  --tag-text: #dbeafe;
  --tag-border: rgba(148, 163, 184, 0.3);
  --tag-primary-bg: #3b82f6;
  --tag-primary-text: #0b1220;
  --footer-bg: #020617;
  --footer-text: #cbd5f5;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Manrope", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--page-bg);
  line-height: 1.6;
}

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

.container {
  width: min(1120px, 92vw);
  margin: 0 auto;
}

.nav {
  position: sticky;
  top: 0;
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  padding: 18px 0;
  gap: 50px;
  position: relative;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  flex: 1;
  margin-left: 24px;
}

.nav-settings {
  display: flex;
  align-items: center;
  margin-left: auto;
}

.nav-toggles {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: 0;
}

.settings-toggle {
  display: none;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-weight: 600;
  cursor: pointer;
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  cursor: pointer;
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.08);
}

.menu-line {
  width: 20px;
  height: 2px;
  background: currentColor;
  position: relative;
  border-radius: 999px;
}

.menu-line::before,
.menu-line::after {
  content: "";
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 999px;
}

.menu-line::before {
  top: -6px;
}

.menu-line::after {
  top: 6px;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  transition: transform 0.2s ease;
  position: relative;
}

.logo span {
  color: var(--primary);
}

.logo img {
  height: 55px;
  width: auto;
  display: block;
  position: relative;
  z-index: 1;
}

html[data-theme="dark"] .logo img {
  filter: none;
}


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

.btn {
  background: var(--primary);
  color: #fff;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-align: center;
}

.btn:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
}

.btn-small {
  padding: 10px 22px;
  font-size: 0.95rem;
}

.btn-accent {
  background: var(--accent);
  color: #0b1a10;
  box-shadow: 0 12px 24px rgba(34, 197, 94, 0.35);
}

.ghost {
  padding: 12px 18px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.ghost:hover {
  transform: translateY(-2px) scale(1.03);
  border-color: rgba(37, 99, 235, 0.35);
}

.toggle-theme,
.lang-toggle {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  line-height: 1;
}

.toggle-theme:hover,
.lang-toggle:hover {
  transform: translateY(-2px) scale(1.03);
  border-color: rgba(37, 99, 235, 0.35);
}

.toggle-theme {
  position: relative;
  width: 72px;
  height: 36px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--section-muted);
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.08);
}

.lang-toggle {
  position: relative;
  width: 72px;
  height: 36px;
  padding: 0 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--section-muted);
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: var(--muted);
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.08);
}

.lang-toggle::after {
  content: "";
  position: absolute;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #0f172a;
  left: 1px;
  top: 1px;
  transition: transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1),
              background 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
  box-shadow: 0 6px 12px rgba(15, 23, 42, 0.2);
  z-index: 0;
}

.lang-toggle[data-lang="en"]::after {
  transform: translateX(36px);
}

html[data-theme="dark"] .lang-toggle {
  background: #0f172a;
}

html[data-theme="dark"] .lang-toggle::after {
  background: #f8fafc;
}

.lang-flag {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: block;
  object-fit: cover;
  z-index: 1;
  transition: opacity 0.2s ease, transform 0.2s ease;
  opacity: 0.45;
}

.lang-toggle[data-lang="pt"] .lang-flag:first-child,
.lang-toggle[data-lang="en"] .lang-flag:last-child {
  opacity: 0.95;
  transform: scale(1.05);
}

.lang-toggle[data-lang="pt"] .lang-flag:last-child,
.lang-toggle[data-lang="en"] .lang-flag:first-child {
  opacity: 0.25;
}

.toggle-theme::after {
  content: "";
  position: absolute;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #0f172a;
  left: 1px;
  top: 1px;
  transform: translateX(0);
  transition: transform 0.6s cubic-bezier(0.22, 0.61, 0.36, 1),
              background 0.6s cubic-bezier(0.22, 0.61, 0.36, 1);
  box-shadow: 0 8px 16px rgba(15, 23, 42, 0.2);
  z-index: 0;
}

html[data-theme="dark"] .toggle-theme {
  background: #0f172a;
}

html[data-theme="dark"] .toggle-theme::after {
  transform: translateX(36px);
  background: #f8fafc;
}

.toggle-icon {
  font-size: 0.95rem;
  width: 18px;
  height: 18px;
  display: grid;
  place-items: center;
  z-index: 1;
  transition: opacity 0.2s ease;
}

.toggle-sun {
  opacity: 0.9;
}

.toggle-moon {
  opacity: 0.2;
}

html[data-theme="dark"] .toggle-sun {
  opacity: 0.2;
}

html[data-theme="dark"] .toggle-moon {
  opacity: 0.9;
}

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

.ghost-light {
  border-color: rgba(255, 255, 255, 0.4);
  color: #ffffff;
}

.hero {
  padding: 100px 0 80px;
}

section {
  scroll-margin-top: 110px;
}

.hero-grid {
  display: grid;
  gap: 56px;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 1.25rem;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 12px;
}

h1 {
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  line-height: 1.1;
  margin-bottom: 18px;
}

.lead {
  font-size: 1.15rem;
  color: var(--muted);
  margin-bottom: 12px;
}

.support {
  font-size: 1rem;
  color: var(--text);
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.hero-photo {
  display: grid;
  place-items: center;
}

.photo-frame {
  background: var(--card);
  border-radius: 24px;
  padding: 22px;
  box-shadow: var(--shadow);
  width: min(360px, 80vw);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.photo-frame:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 22px 44px rgba(15, 23, 42, 0.18);
}

.photo-placeholder {
  width: 100%;
  aspect-ratio: 2 / 3;
  border-radius: 18px;
  background: linear-gradient(160deg, #e2e8f0, #f8fafc);
  display: grid;
  place-items: center;
  font-weight: 600;
  color: var(--muted);
  text-align: center;
  padding: 20px;
  overflow: hidden;
}

html[data-theme="dark"] .photo-placeholder {
  background: linear-gradient(160deg, #0f172a, #1f2937);
}

.photo-placeholder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center bottom;
  border-radius: 18px;
  display: block;
}

.problem {
  background: var(--section-muted);
  padding: 70px 0;
}

.section-header {
  display: grid;
  gap: 10px;
  margin-bottom: 32px;
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px;
}

.problem-card {
  background: var(--card);
  border-radius: 18px;
  padding: 24px;
  border: 1px solid var(--border);
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.04);
}

.problem-card .icon {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.solution {
  padding: 80px 0;
}

.solution-card {
  text-align: center;
  background: var(--card);
  border-radius: 24px;
  padding: clamp(28px, 5vw, 56px);
  box-shadow: var(--shadow);
}

.solution-card h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  margin-bottom: 12px;
}

.services {
  padding: 80px 0;
}

.services-grid {
  display: grid;
  gap: 22px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.service-card {
  perspective: 1200px;
}

.service-card:focus-visible {
  outline: 2px solid rgba(37, 99, 235, 0.45);
  outline-offset: 4px;
  border-radius: 18px;
}

.service-card-inner {
  display: grid;
  transform-style: preserve-3d;
  transition: transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
  min-height: 340px;
}

.service-card.is-flipped .service-card-inner {
  transform: rotateY(180deg);
}

.service-face {
  grid-area: 1 / 1;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  background: var(--card);
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.06);
  backface-visibility: hidden;
  display: grid;
  gap: 12px;
  align-content: start;
  position: relative;
  padding-bottom: 64px;
}

.service-back {
  transform: rotateY(180deg);
}

.service-card .icon {
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.service-details {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.95rem;
}

.service-details li::before {
  content: "•";
  color: var(--primary);
  margin-right: 8px;
}

.service-details li {
  display: flex;
  align-items: flex-start;
}

.service-toggle {
  position: absolute;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.service-toggle:hover {
  transform: translateX(-50%) scale(1.06);
  border-color: rgba(37, 99, 235, 0.4);
  box-shadow: 0 8px 16px rgba(37, 99, 235, 0.12);
}

@media (prefers-reduced-motion: reduce) {
  .service-card-inner {
    transition: none;
  }
}

.stack {
  padding: 80px 0;
  background: var(--bg);
}

.stack-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.stack-card {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 24px;
  background: var(--card);
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.06);
  display: grid;
  gap: 10px;
  grid-column: span 2;
  min-height: 150px;
  align-content: start;
}

.stack-card h3 {
  margin: 0;
  line-height: 1.2;
}

.stack-card:nth-child(4),
.stack-card:nth-child(5) {
  grid-column: span 3;
}

.about {
  padding: 80px 0;
  background: #f8fafc;
}

html[data-theme="dark"] .about {
  background: var(--section-muted);
}

.about-content {
  display: grid;
  gap: 16px;
  max-width: 820px;
  color: var(--muted);
}

.about-content p {
  margin: 0;
  font-size: 1rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--tag-bg);
  color: var(--tag-text);
  font-weight: 600;
  font-size: 0.85rem;
  border: 1px solid var(--tag-border);
  white-space: nowrap;
}

.tag-primary {
  background: var(--tag-primary-bg);
  color: var(--tag-primary-text);
  border-color: transparent;
}

.stack .tag,
.stack .tag-primary {
  background: var(--tag-primary-bg);
  color: var(--tag-primary-text);
  border-color: transparent;
}

html[data-theme="dark"] .stack .tag,
html[data-theme="dark"] .stack .tag-primary {
  background: var(--tag-bg);
  color: var(--tag-text);
  border-color: var(--tag-border);
}

.differential {
  background: linear-gradient(120deg, #eff6ff, #ffffff);
  padding: 80px 0;
}

html[data-theme="dark"] .differential {
  background: linear-gradient(120deg, #0b1220, #020617);
}

.comparison {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-top: 24px;
}

.col {
  border-radius: 20px;
  padding: 28px;
  border: 1px solid var(--border);
  background: var(--card);
}

.col.highlight {
  background: #0f172a;
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 16px 30px rgba(15, 23, 42, 0.25);
}

.col ul {
  list-style: none;
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

.bad {
  color: #dc2626;
  font-weight: 600;
}

.good {
  color: #16a34a;
  font-weight: 600;
}

.audience {
  padding: 80px 0;
}

.audience-list {
  display: grid;
  gap: 18px;
}

.audience-item {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--card);
  border-radius: 16px;
  padding: 18px 22px;
  border: 1px solid var(--border);
}

.audience-item .icon {
  font-size: 1.4rem;
}

.form {
  padding: 90px 0;
  background: var(--section-muted);
}

.form-card {
  background: var(--card);
  border-radius: 24px;
  padding: clamp(28px, 5vw, 48px);
  max-width: 640px;
  margin: 0 auto;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.form-success {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: linear-gradient(130deg, rgba(37, 99, 235, 0.08), rgba(34, 197, 94, 0.12));
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.35s ease, transform 0.35s ease;
  pointer-events: none;
}

html[data-theme="dark"] .form-success {
  background: linear-gradient(130deg, rgba(96, 165, 250, 0.14), rgba(52, 211, 153, 0.16));
}

.form-success.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.success-content {
  background: var(--card);
  border-radius: 22px;
  border: 1px solid var(--border);
  padding: 26px 28px;
  max-width: 420px;
  width: 100%;
  text-align: center;
  display: grid;
  gap: 12px;
  box-shadow: var(--shadow);
}

.success-content h3 {
  font-size: 1.35rem;
}

.bug-swarm {
  position: relative;
  width: 170px;
  height: 64px;
  margin: 0 auto;
}

.bug {
  position: absolute;
  width: 16px;
  height: 12px;
  border-radius: 10px;
  background: #f97316;
  box-shadow: 0 10px 18px rgba(249, 115, 22, 0.35);
  animation: bug-flee 2.8s ease-in-out infinite;
  animation-play-state: paused;
}

.bug::before,
.bug::after {
  content: "";
  position: absolute;
  width: 8px;
  height: 2px;
  background: inherit;
  top: -4px;
  border-radius: 999px;
}

.bug::before {
  left: 2px;
  transform: rotate(-25deg);
}

.bug::after {
  right: 2px;
  transform: rotate(25deg);
}

.form-success.is-visible .bug {
  animation-play-state: running;
}

.bug-1 { top: 6px; left: 18px; --x: -12px; --y: -10px; animation-delay: 0s; }
.bug-2 { top: 24px; left: 48px; --x: 10px; --y: -16px; animation-delay: 0.2s; }
.bug-3 { top: 8px; left: 92px; --x: -8px; --y: 14px; animation-delay: 0.4s; }
.bug-4 { top: 32px; left: 118px; --x: 12px; --y: 12px; animation-delay: 0.6s; }
.bug-5 { top: 18px; left: 138px; --x: -14px; --y: 6px; animation-delay: 0.8s; }
.bug-6 { top: 38px; left: 12px; --x: 16px; --y: -6px; animation-delay: 1s; }

.success-mark {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  margin: 0 auto;
  position: relative;
}

.form-success.is-visible .success-mark {
  animation: success-pop 0.6s ease both;
}

.success-mark::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 30px;
  border-right: 3px solid var(--accent);
  border-bottom: 3px solid var(--accent);
  transform: rotate(45deg);
  left: 18px;
  top: 8px;
}

@keyframes bug-flee {
  0% {
    transform: translate(0, 0) scale(0.9);
    opacity: 0.7;
  }
  40% {
    transform: translate(var(--x), var(--y)) scale(1);
    opacity: 1;
  }
  70% {
    transform: translate(calc(var(--x) * -0.6), calc(var(--y) * -0.2)) scale(0.95);
  }
  100% {
    transform: translate(0, 0) scale(0.9);
    opacity: 0.7;
  }
}

@keyframes success-pop {
  0% {
    transform: scale(0.6);
    opacity: 0;
  }
  70% {
    transform: scale(1.08);
    opacity: 1;
  }
  100% {
    transform: scale(1);
  }
}

.form-card form {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.field {
  display: grid;
  gap: 8px;
}

input, textarea {
  font: inherit;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
}

html[data-theme="dark"] input,
html[data-theme="dark"] textarea {
  color: #ffffff;
}

input:focus, textarea:focus {
  outline: 2px solid rgba(37, 99, 235, 0.2);
  border-color: rgba(37, 99, 235, 0.4);
}

.privacy {
  font-size: 0.9rem;
  color: var(--muted);
}

.cta {
  background: #0f172a;
  color: #ffffff;
  padding: 70px 0;
}

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

.cta-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-cta {
  background: var(--accent);
  color: #0b1a10;
  box-shadow: 0 12px 24px rgba(34, 197, 94, 0.35);
}

.footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: 28px 0 36px;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 0.95rem;
  text-align: center;
}

.footer-inner p {
  margin: 0;
}

@media (max-width: 900px) {
  .services-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .nav-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .nav-actions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    margin-left: 0;
    background: var(--nav-bg);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 18px 30px rgba(15, 23, 42, 0.08);
  }

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

  .menu-toggle {
    display: inline-flex;
  }

  .settings-toggle {
    display: inline-flex;
  }

  .nav-settings {
    display: none;
    width: 100%;
    margin-left: 0;
  }

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

  .nav-settings .nav-toggles {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .hero-actions,
  .cta-actions {
    justify-content: center;
  }

  .form-card form .btn {
    align-self: center;
  }

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

  .stack-card,
  .stack-card:nth-child(4),
  .stack-card:nth-child(5) {
    grid-column: auto;
  }

  .cta-inner {
    flex-direction: column;
    text-align: center;
  }
}