:root {
  --color-primary: #2563EB;
  --color-secondary: #0D9488;
  --color-accent: #e6aa3d;
  --color-success: #16A34A;
  --color-error: #DC2626;

  --color-bg-main: #F8FAFC;
  --color-bg-surface: #FFFFFF;
  --color-text-main: #1E293B;
  --color-text-footer: #FFFFFF;
  --color-text-muted: #475569;
  --color-border: #E2E8F0;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-pill: 999px;

  --shadow-soft: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-card: 0 12px 34px rgba(15, 23, 42, 0.1);
  --shadow-glow-primary: 0 16px 36px rgba(37, 99, 235, 0.23);
  --shadow-glow-secondary: 0 16px 36px rgba(13, 148, 136, 0.2);

  --container-max: 1180px;
  --header-height: 76px;
  --transition-base: 300ms cubic-bezier(0.2, 0.7, 0.2, 1);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg-main: #0F172A;
    --color-bg-surface: #1E293B;
    --color-text-main: #F1F5F9;
    --color-text-muted: #94A3B8;
    --color-border: #334155;

    --shadow-soft: 0 10px 24px rgba(2, 6, 23, 0.45);
    --shadow-card: 0 14px 36px rgba(2, 6, 23, 0.52);
    --shadow-glow-primary: 0 16px 40px rgba(37, 99, 235, 0.34);
    --shadow-glow-secondary: 0 16px 40px rgba(13, 148, 136, 0.28);
  }
}

:root[data-theme="dark"] {
  --color-bg-main: #0F172A;
  --color-bg-surface: #1E293B;
  --color-text-main: #F1F5F9;
  --color-text-muted: #94A3B8;
  --color-border: #334155;

  --shadow-soft: 0 10px 24px rgba(2, 6, 23, 0.45);
  --shadow-card: 0 14px 36px rgba(2, 6, 23, 0.52);
  --shadow-glow-primary: 0 16px 40px rgba(37, 99, 235, 0.34);
  --shadow-glow-secondary: 0 16px 40px rgba(13, 148, 136, 0.28);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background:
    radial-gradient(1000px 480px at -10% -20%, rgba(37, 99, 235, 0.12), transparent 70%),
    radial-gradient(900px 400px at 110% 5%, rgba(13, 148, 136, 0.1), transparent 72%),
    var(--color-bg-main);
  color: var(--color-text-main);
  font-family: "Inter", sans-serif;
  font-size: 16px;
  font-weight: 400;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  min-height: 100dvh;
}

main {
  overflow: clip;
}

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

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

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: "Montserrat", sans-serif;
  color: var(--color-text-main);
  line-height: 1.25;
}

h1 {
  font-size: 32px;
  font-weight: 700;
}

h2 {
  font-size: 24px;
  font-weight: 600;
}

h3 {
  font-size: 20px;
  font-weight: 500;
}

p {
  color: var(--color-text-main);
}

small,
.caption {
  font-size: 12px;
  font-weight: 400;
}

.container {
  width: min(100% - 2.5rem, var(--container-max));
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  top: -120px;
  left: var(--space-4);
  z-index: 999;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: #FFFFFF;
  font-weight: 600;
}

.skip-link:focus {
  top: var(--space-4);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--color-bg-main) 88%, transparent);
}

.site-header__inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  /* gap: var(--space-1); */
  /* padding-block: var(--space-3); */
}

.brand__logo {
  margin-top: 5px;
  width: 3rem;
  height: 3rem;
}

.brand__name {
  font-family: "Montserrat", sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--color-text-main);
}

.brand__name-footer {
  font-family: "Montserrat", sans-serif;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--color-text-footer);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: 100%;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-surface);
  transform: translateY(-115%);
  opacity: 0;
  visibility: hidden;
  transition: transform var(--transition-base), opacity var(--transition-base), visibility var(--transition-base);
}

.nav.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.nav__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.nav__list li {
  border-bottom: 1px solid var(--color-border);
}

.nav__link {
  display: block;
  padding: var(--space-4) var(--space-6);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-main);
  transition: color var(--transition-base), background-color var(--transition-base);
}

.nav__link:hover,
.nav__link:focus-visible {
  color: var(--color-primary);
  background-color: rgba(37, 99, 235, 0.08);
}

.theme-toggle,
.nav-toggle {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-surface);
  color: var(--color-text-main);
  cursor: pointer;
  transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
}

.theme-toggle:hover,
.nav-toggle:hover {
  transform: translateY(-2px);
  border-color: rgba(37, 99, 235, 0.5);
  box-shadow: var(--shadow-soft);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  font-family: "Inter", sans-serif;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base);
}

.btn:focus-visible,
.theme-toggle:focus-visible,
.nav-toggle:focus-visible,
.form-input:focus-visible,
.nav__link:focus-visible,
.site-footer__nav a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn--sm {
  display: none;
}

.btn--lg {
  min-height: 48px;
  padding: 0.85rem 1.2rem;
  font-size: 0.98rem;
}

.btn--contact {
   background: color-mix(in srgb, var(--color-secondary) 82%, black);
}

.btn--primary {
  background: color-mix(in srgb, var(--color-accent) 82%, black);
  color: #FFFFFF;
  box-shadow: var(--shadow-soft);
}

.btn--primary:hover {
  transform: translateY(-2px);
  background: color-mix(in srgb, var(--color-accent) 68%, black);
  box-shadow: 0 16px 36px rgba(217, 119, 6, 0.32);
}

.btn--ghost {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: color-mix(in srgb, var(--color-bg-surface) 75%, transparent);
}

.btn--ghost:hover {
  transform: translateY(-2px);
  border-color: var(--color-accent);
  background: rgba(37, 99, 235, 0.09);
}

.btn:disabled,
#submit-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.hero {
  position: relative;
  background:
    radial-gradient(820px 360px at 85% -10%, rgba(13, 148, 136, 0.14), transparent 68%),
    linear-gradient(180deg, color-mix(in srgb, var(--color-primary) 9%, var(--color-bg-surface)) 0%, var(--color-bg-main) 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 1px 1px, rgba(71, 85, 105, 0.19) 1.2px, transparent 0);
  background-size: 22px 22px;
  opacity: 0.22;
  pointer-events: none;
}

.hero__glow {
  position: absolute;
  width: 420px;
  height: 420px;
  top: -110px;
  right: -80px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(13, 148, 136, 0.24) 0%, rgba(13, 148, 136, 0) 70%);
  filter: blur(8px);
  pointer-events: none;
}

/* Grafismo de apoio: marca d'água discreta com dois elos entrelaçados, remetendo à ligação Ellos (guia de identidade visual, item 5) */
.hero__lines {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 400 400'%3E%3Ccircle cx='160' cy='170' r='86' fill='none' stroke='%232563EB' stroke-width='10'/%3E%3Ccircle cx='250' cy='240' r='86' fill='none' stroke='%230D9488' stroke-width='10'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right -40px top -30px;
  background-size: min(46vw, 460px);
  opacity: 0.035;
  pointer-events: none;
}

.hero__inner {
  position: relative;
}

.hero__content {
  max-width: 760px;
}

.eyebrow,
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  border-radius: var(--radius-pill);
  border: 1px solid rgba(13, 148, 136, 0.34);
  color: var(--color-secondary);
  background: rgba(13, 148, 136, 0.12);
  padding: 0.45rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero__title {
  margin-top: var(--space-5);
  max-width: 18ch;
}

.text-gradient {
  background: linear-gradient(110deg, var(--color-primary), var(--color-secondary), var(--color-accent));
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: hue-flow 7s ease-in-out infinite;
}

.hero__subtitle {
  margin-top: var(--space-6);
  color: var(--color-text-muted);
  max-width: 62ch;
}

.hero__actions {
  margin-top: var(--space-8);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.hero__trust {
  list-style: none;
  margin-top: var(--space-8);
  display: grid;
  gap: var(--space-3);
}

.hero__trust li {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-main);
  font-weight: 500;
}

.hero__trust i {
  width: 1.55rem;
  color: var(--color-secondary);
}

.features,
.about,
.social-proof,
.contact {
  padding: clamp(3.2rem, 6vw, 5.2rem) 0;
}

.section-title {
  margin: var(--space-8) 0px var(--space-8) 0px;
  max-width: 24ch;
}

.section-lead {
  margin-top: var(--space-4);
  max-width: 62ch;
  color: var(--color-text-muted);
}

.features-grid {
  margin-top: var(--space-10);
  display: grid;
  gap: var(--space-4);
}

.feature-card,
.principle-card {
  position: relative;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg-surface);
  box-shadow: var(--shadow-soft);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.feature-card {
  padding: var(--space-6);
  font-size: 1rem;
}

.feature-card__icon {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(140deg, rgba(37, 99, 235, 0.2), rgba(13, 148, 136, 0.2));
  color: var(--color-primary);
  font-size: 1.25rem;
}

.feature-card h4 {
  margin-top: var(--space-5);
}

.feature-card p {
  margin-top: var(--space-3);
  color: var(--color-text-muted);
}

.feature-card:hover,
.principle-card:hover {
  transform: translateY(-5px);
  border-color: rgba(37, 99, 235, 0.44);
  box-shadow: var(--shadow-glow-primary);
}

.feature-card--highlight {
  border-color: rgba(13, 148, 136, 0.55);
  box-shadow: var(--shadow-glow-secondary);
}

.feature-card__badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  color: #FFFFFF;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.32rem 0.65rem;
}

.about__grid {
  display: grid;
  gap: var(--space-8);
}

.manifesto {
  margin-top: var(--space-6);
  border-left: 3px solid var(--color-secondary);
  padding: var(--space-4) var(--space-5);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(13, 148, 136, 0.11);
  color: var(--color-text-main);
  font-style: italic;
}

.about__principles-title {
  margin: var(--space-20) 0 var(--space-10) 0;
}

.principles-grid {
  list-style: none;
  display: grid;
  gap: var(--space-3);
}

.principle-card {
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.principle-card i {
  color: var(--color-secondary);
  font-size: 1.05rem;
}

.principle-card span {
  font-weight: 600;
  font-size: 0.9rem;
}

.social-proof {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: linear-gradient(180deg, transparent, rgba(37, 99, 235, 0.05));
  overflow: hidden;
  font-size: 1.5rem;
}

.social-proof__label {
  text-align: center;
  font-family: "Montserrat", sans-serif;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-12);
}

.social-proof__viewport {
  width: 65%;
  margin-top: var(--space-6);
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 12%, #000 88%, transparent 100%) !important;
  mask-image: linear-gradient(90deg, transparent 0%, #000 12%, #000 88%, transparent 100%) !important;
}

.social-proof__track {
  display: flex;
  width: max-content;
  animation: social-proof-scroll 26s linear infinite;
}

.social-proof__viewport:hover .social-proof__track {
  animation-play-state: paused;
}

.social-proof__list {
  display: flex;
  list-style: none;
}

.social-proof__list li {
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding-inline: var(--space-10);
  white-space: nowrap;
  color: #94A3B8;
  font-weight: 500;
  filter: grayscale(1);
}

.social-proof__list i {
  color: #94A3B8;
}

@keyframes social-proof-scroll {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-50%);
  }
}

.contact__inner {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-bg-surface);
  box-shadow: var(--shadow-card);
  padding: clamp(1.25rem, 3vw, 2.25rem);
  display: grid;
  gap: var(--space-8);
  max-width: 720px;
  margin-inline: auto;
}

.contact-form {
  display: grid;
  /*gap: var(--space-1); */
}

.form-field {
  display: grid;
}

.form-field--submit {
  margin-top: var(--space-4);
}

.form-field--full,
.form-field--submit {
  grid-column: 1 / -1;
}

.form-input {
  width: 100%;
  min-height: 48px;
  padding: 0.78rem 0.95rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-main);
  color: var(--color-text-main);
  font: inherit;
  transition: border-color var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base);
}

textarea.form-input {
  min-height: 130px;
  resize: vertical;
}

.form-input::placeholder {
  color: var(--color-text-muted);
  opacity: 0.9;
}

.form-input:focus,
.form-input:focus-visible {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
}

.form-input.is-invalid {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.16);
}

.form-error {
  min-height: 1rem;
  font-size: 0.86rem;
  color: var(--color-error);
}

.form-feedback {
  min-height: 1.2rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.form-feedback.success {
  color: var(--color-success);
  font-weight: 600;
}

.form-feedback.error {
  color: var(--color-error);
  font-weight: 600;
}

.site-footer {
  --footer-bg: #0F172A;
  --footer-border: rgba(148, 163, 184, 0.18);
  --footer-text: rgba(226, 232, 240, 0.72);
  --footer-text-strong: rgba(241, 245, 249, 0.88);
  --footer-text-muted: rgba(148, 163, 184, 0.62);
  border-top: 1px solid var(--footer-border);
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: var(--space-12) 0 var(--space-10);
}

.site-footer__inner {
  display: grid;
  gap: var(--space-8);
  font-size: 0.95rem;
}

.site-footer__brand {
  display: grid;
  gap: var(--space-2);
  max-width: 56ch;
}

.site-footer__brand .brand__logo {
  margin-left: -7px;
  width: 3rem;
  height: 3rem;
}

.site-footer__brand p {
  color: var(--footer-text-muted);
}

.site-footer__nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}

.site-footer__meta {
  display: flex;
  height: 100%;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
}

.site-footer__meta .footer-copy {
  margin-top: auto; 
}

.site-footer__nav a {
  position: relative;
  font-weight: 500;
  color: var(--footer-text);
}

.site-footer__nav a:hover,
.site-footer__nav a:focus-visible {
  color: var(--footer-text-strong);
}

.site-footer__nav a::after,
.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -3px;
  width: 100%;
  height: 2px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.site-footer__nav a:hover::after,
.nav__link:hover::after,
.nav__link:focus-visible::after,
.site-footer__nav a:focus-visible::after {
  transform: scaleX(1);
}

.footer-citation {
  color: var(--footer-text-muted);
  max-width: 70ch;
  font-size: 0.9rem;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--footer-text-muted);
}

@media (min-width: 640px) {
  .features-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 768px) {
  body {
    font-size: 18px;
  }

  h1 {
    font-size: 48px;
  }

  h2 {
    font-size: 32px;
  }

  h3 {
    font-size: 24px;
  }

  small,
  .caption {
    font-size: 14px;
  }

  .btn--sm {
    display: inline-flex;
    min-height: 40px;
    padding: 0.68rem 0.9rem;
    font-size: 0.86rem;
  }

  .nav-toggle {
    display: none;
  }

  .nav {
    position: static;
    width: auto;
    border: 0;
    background: transparent;
    transform: none;
    opacity: 1;
    visibility: visible;
    margin-left: auto;
  }

  .nav__list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-4);
  }

  .nav__list li {
    border: 0;
  }

  .nav__link {
    position: relative;
    padding: var(--space-2) 0;
    background: transparent;
  }

  .hero__trust {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-4);
    white-space: nowrap;
  }

  .about__grid {
    grid-template-columns: 1.1fr 1fr;
    align-items: start;
  }

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

@media (min-width: 1024px) {
  .site-header__inner {
    gap: var(--space-8);
  }

  .hero {
    padding-bottom: 5.8rem;
    padding-top: calc(clamp(5rem, 13vw, 8.6rem) - 100px) !important;
  }

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

  .site-footer__inner {
    grid-template-columns: 1.2fr 0.9fr 1.2fr;
    align-items: start;
  }
}

@media (max-width: 1023px) {
  .hero {
    padding-bottom: 5.8rem;
    padding-top: calc(clamp(5rem, 13vw, 8.6rem) - 75px) !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  .site-header,
  .site-footer,
  .theme-toggle,
  .nav-toggle,
  .hero__glow {
    display: none !important;
  }

  body {
    background: #FFFFFF;
    color: #111827;
  }

  .container {
    width: 100%;
  }
}

@keyframes hue-flow {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}