/* =============================================
   MartinTech Landing — estilos
   Tokens da marca oficial: brand-tokens.css
   ============================================= */

:root {
  /* Cores oficiais (sem ajuste fino) */
  --mt-burgundy: #552b2b;
  --mt-bone: #eeeae1;
  --mt-charcoal: #222321;
  --mt-white: #ffffff;

  /* Tipografia */
  --mt-font-display: "Manrope", "Aptos", Arial, sans-serif;
  --mt-font-body: "Inter", "Aptos", Arial, sans-serif;

  /* Escala tipográfica fluida */
  --fs-display: clamp(2.5rem, 5vw + 0.5rem, 4.25rem);
  --fs-h2: clamp(1.625rem, 2vw + 1rem, 2.25rem);
  --fs-h3: 1.25rem;
  --fs-base: 1rem;
  --fs-small: 0.875rem;
  --fs-eyebrow: 0.75rem;

  /* Raios */
  --r-sm: 8px;
  --r-md: 16px;
  --r-lg: 28px;

  /* Layout */
  --container: 1100px;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --section-pad-y: clamp(4rem, 8vw, 7rem);

  /* Movimento sutil */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset enxuto */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--mt-font-body);
  font-size: var(--fs-base);
  line-height: 1.65;
  color: var(--mt-charcoal);
  background: var(--mt-bone);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.eyebrow {
  font-family: var(--mt-font-display);
  font-weight: 600;
  font-size: var(--fs-eyebrow);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mt-charcoal);
  margin: 0 0 1rem;
}
.eyebrow--wine {
  color: var(--mt-burgundy);
}

.skip-link {
  position: absolute;
  inset-inline-start: -9999px;
  top: -9999px;
}
.skip-link:focus {
  inset-inline-start: 1rem;
  top: 1rem;
  background: var(--mt-charcoal);
  color: var(--mt-bone);
  padding: 0.5rem 1rem;
  border-radius: var(--r-sm);
  z-index: 100;
}

:focus-visible {
  outline: 2px solid var(--mt-burgundy);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  background: rgba(238, 234, 225, 0.85);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid rgba(34, 35, 33, 0.08);
  z-index: 50;
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding-block: 1rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  color: var(--mt-burgundy);
  font-family: var(--mt-font-display);
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
}
.brand__mark {
  width: 28px;
  height: 28px;
  flex: 0 0 auto;
  color: var(--mt-burgundy);
}
.brand__name {
  color: var(--mt-charcoal);
}

.nav {
  display: flex;
  gap: 1.75rem;
  font-family: var(--mt-font-body);
  font-size: var(--fs-small);
  font-weight: 500;
}
.nav a {
  text-decoration: none;
  color: var(--mt-charcoal);
  position: relative;
  padding-block: 0.25rem;
  transition: color 0.2s var(--ease);
}
.nav a:hover {
  color: var(--mt-burgundy);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease);
}
.nav a:hover::after {
  transform: scaleX(1);
}

.nav__toggle {
  display: none;
  background: none;
  border: 0;
  width: 40px;
  height: 40px;
  cursor: pointer;
  padding: 0;
}
.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--mt-charcoal);
  margin-inline: auto;
  margin-block: 4px;
  transition: transform 0.25s var(--ease), opacity 0.2s var(--ease);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.nav__toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav__toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Hero */
.hero {
  padding-block: clamp(5rem, 10vw, 8rem);
  position: relative;
  overflow: hidden;
  background: var(--mt-bone);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("assets/svg/martintech-pattern.svg");
  background-size: 280px;
  background-repeat: repeat;
  opacity: 0.06;
  pointer-events: none;
}
.hero__inner {
  position: relative;
  text-align: center;
  max-width: 56rem;
  margin-inline: auto;
}
.hero .eyebrow {
  color: var(--mt-burgundy);
}
.hero__title {
  font-family: var(--mt-font-display);
  font-weight: 700;
  font-size: var(--fs-display);
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--mt-charcoal);
  margin: 0 0 1.25rem;
}
.hero__title .accent {
  color: var(--mt-burgundy);
}
.hero__lede {
  font-size: 1.125rem;
  max-width: 48ch;
  margin: 0 auto 2rem;
  color: rgba(34, 35, 33, 0.78);
}
.hero__actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.5rem;
  border-radius: var(--r-md);
  font-family: var(--mt-font-body);
  font-weight: 600;
  font-size: var(--fs-base);
  text-decoration: none;
  transition: transform 0.15s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease);
  min-height: 48px;
}
.btn--primary {
  background: var(--mt-burgundy);
  color: var(--mt-bone);
}
.btn--primary:hover {
  transform: translateY(-1px);
  background: #6a3535;
}
.btn--inverse {
  background: var(--mt-bone);
  color: var(--mt-charcoal);
}
.btn--inverse:hover {
  background: var(--mt-white);
  color: var(--mt-charcoal);
}
.btn--ghost {
  background: transparent;
  color: var(--mt-charcoal);
  border: 1px solid rgba(34, 35, 33, 0.2);
}
.btn--ghost:hover {
  background: var(--mt-charcoal);
  color: var(--mt-bone);
  border-color: var(--mt-charcoal);
}

/* Sections */
.section {
  padding-block: var(--section-pad-y);
}
.section--bone {
  background: var(--mt-bone);
}
.section--white {
  background: var(--mt-white);
}
.section--charcoal {
  background: var(--mt-charcoal);
  color: var(--mt-bone);
}

.section__head {
  max-width: 56rem;
  margin: 0 auto 2.5rem;
}
.section__head--center {
  text-align: center;
}
.section__head--invert .eyebrow {
  color: rgba(238, 234, 225, 0.7);
}
.section__head h2 {
  font-family: var(--mt-font-display);
  font-weight: 700;
  font-size: var(--fs-h2);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}
.section--charcoal .section__head h2 {
  color: var(--mt-bone);
}
.section__lede {
  font-size: 1rem;
  color: rgba(34, 35, 33, 0.78);
  margin: 0.25rem 0;
}
.section--charcoal .section__lede {
  color: rgba(238, 234, 225, 0.78);
}
.section__cta {
  margin-top: 2rem;
}

/* Services */
.services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
}
.service {
  padding: 1.75rem;
  border: 1px solid rgba(34, 35, 33, 0.08);
  border-radius: var(--r-md);
  background: var(--mt-bone);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.service:hover {
  border-color: var(--mt-burgundy);
  transform: translateY(-2px);
}
.service h3 {
  font-family: var(--mt-font-display);
  font-size: var(--fs-h3);
  margin: 0 0 0.5rem;
  color: var(--mt-charcoal);
}
.service p {
  margin: 0;
  color: rgba(34, 35, 33, 0.75);
  font-size: 0.9375rem;
}

/* About */
.about {
  max-width: 60ch;
  margin-inline: auto;
  text-align: center;
  font-size: 1.0625rem;
  color: rgba(34, 35, 33, 0.85);
}
.about p {
  margin: 0 0 1rem;
}
.about p:last-child {
  margin-bottom: 0;
}
.about strong {
  color: var(--mt-burgundy);
}

/* Links */
.link {
  color: var(--mt-burgundy);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}
.link:hover {
  text-decoration-thickness: 2px;
}
.link--bone {
  color: var(--mt-bone);
  text-decoration-color: rgba(238, 234, 225, 0.4);
}
.link--bone:hover {
  text-decoration-color: var(--mt-bone);
}

/* Footer */
.footer {
  background: var(--mt-bone);
  border-top: 1px solid rgba(34, 35, 33, 0.08);
  padding-block: 2rem;
  font-size: var(--fs-small);
}
.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  color: rgba(34, 35, 33, 0.65);
}
.footer__quiet {
  font-family: var(--mt-font-display);
  color: var(--mt-burgundy);
  font-weight: 600;
  margin: 0;
}

/* Responsivo — header vira burger */
@media (max-width: 720px) {
  .nav__toggle {
    display: block;
  }
  .nav {
    position: absolute;
    inset-inline: 0;
    top: 100%;
    background: var(--mt-bone);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem var(--gutter);
    gap: 0.5rem;
    border-bottom: 1px solid rgba(34, 35, 33, 0.08);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
  }
  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav a {
    padding-block: 0.5rem;
    border-bottom: 1px solid rgba(34, 35, 33, 0.06);
  }
  .nav a:last-child {
    border-bottom: 0;
  }
}

/* Movimento sutil — respeita reduced-motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}