/* ============================================
   E.MATOSO ENGENHARIA — STYLESHEET
   Minimalist · Technical · Professional
   ============================================ */

/* ── TOKENS & VARIABLES ─────────────────────── */
:root {
  /* Colors */
  --c-black:        #0a0a0a;
  --c-near-black:   #111111;
  --c-dark:         #1a1a1a;
  --c-mid:          #2d2d2d;
  --c-gray-dark:    #4a4a4a;
  --c-gray:         #6e6e6e;
  --c-gray-light:   #999999;
  --c-gray-subtle:  #c8c8c8;
  --c-border:       #e0e0e0;
  --c-border-dark:  #2a2a2a;
  --c-off-white:    #f5f5f5;
  --c-white:        #ffffff;

  /* Typography */
  --font:           'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing scale */
  --sp-xs:   0.5rem;
  --sp-sm:   1rem;
  --sp-md:   2rem;
  --sp-lg:   4rem;
  --sp-xl:   6rem;
  --sp-2xl:  10rem;

  /* Transitions */
  --t-fast:  0.15s ease;
  --t-med:   0.3s ease;
  --t-slow:  0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout */
  --max-w:   1320px;
  --nav-h:   72px;
}

/* ── RESET & BASE ────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background-color: var(--c-white);
  color: var(--c-black);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

button {
  font-family: var(--font);
  cursor: pointer;
  border: none;
  background: none;
}

/* ── CONTAINER ───────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
}

@media (min-width: 1400px) {
  .container {
    padding: 0 3rem;
  }
}

/* ── TYPOGRAPHY UTILITIES ────────────────────── */
.section-label {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-gray);
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--c-black);
}

.section-subtitle {
  font-size: 0.9rem;
  color: var(--c-gray);
  margin-top: 0.75rem;
  letter-spacing: 0.02em;
}

.section-header {
  margin-bottom: var(--sp-lg);
}

/* ── BUTTONS ─────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.9rem 2.2rem;
  border: 1.5px solid transparent;
  transition: background var(--t-med), color var(--t-med), border-color var(--t-med),
              transform var(--t-fast), box-shadow var(--t-med);
  white-space: nowrap;
  cursor: pointer;
}

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

.btn--primary {
  background: var(--c-black);
  color: var(--c-white);
  border-color: var(--c-black);
}

.btn--primary:hover {
  background: var(--c-mid);
  border-color: var(--c-mid);
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
}

.btn--ghost {
  background: transparent;
  color: var(--c-black);
  border-color: var(--c-black);
}

.btn--ghost:hover {
  background: var(--c-black);
  color: var(--c-white);
}

.btn--large {
  padding: 1.1rem 2.8rem;
  font-size: 0.82rem;
}

/* ── NAVIGATION ──────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-med), background var(--t-med),
              box-shadow var(--t-med);
}

.site-header.scrolled {
  border-color: var(--c-border);
  box-shadow: 0 1px 0 var(--c-border);
}

.nav-container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-logo {
  flex-shrink: 0;
}

.nav-logo-img {
  height: 44px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-gray-dark);
  padding: 0.5rem 0.9rem;
  position: relative;
  transition: color var(--t-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0.9rem;
  right: 0.9rem;
  height: 1px;
  background: var(--c-black);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-med);
}

.nav-link:hover {
  color: var(--c-black);
}

.nav-link:hover::after {
  transform: scaleX(1);
}

.nav-link--cta {
  background: var(--c-black);
  color: var(--c-white) !important;
  padding: 0.55rem 1.3rem;
  margin-left: 0.5rem;
  font-weight: 600;
}

.nav-link--cta::after {
  display: none;
}

.nav-link--cta:hover {
  background: var(--c-mid);
}

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--c-black);
  transition: transform var(--t-med), opacity var(--t-med);
  transform-origin: center;
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ── HERO SECTION ────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-black);
  color: var(--c-white);
  overflow: hidden;
  padding: calc(var(--nav-h) + 4rem) 2rem 6rem;
}

/* Subtle grid background */
.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
}

.hero__bg-grid::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 70% at 60% 50%, rgba(255,255,255,0.04) 0%, transparent 70%);
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 860px;
  text-align: center;
}

.hero__eyebrow {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-gray-light);
  margin-bottom: 2rem;
}

.hero__title {
  font-size: clamp(3.2rem, 8vw, 8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 0.95;
  margin-bottom: 1.5rem;
  color: var(--c-white);
}

.hero__title--outline {
  -webkit-text-stroke: 1.5px var(--c-white);
  color: transparent;
}

.hero__subtitle {
  font-size: clamp(0.9rem, 2vw, 1.15rem);
  font-weight: 300;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-gray-subtle);
  margin-bottom: 1rem;
}

.hero__description {
  font-size: clamp(0.95rem, 1.5vw, 1.05rem);
  font-weight: 400;
  color: var(--c-gray-light);
  max-width: 520px;
  margin: 0 auto 3rem;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero .btn--primary {
  background: var(--c-white);
  color: var(--c-black);
  border-color: var(--c-white);
}

.hero .btn--primary:hover {
  background: var(--c-off-white);
  border-color: var(--c-off-white);
  box-shadow: 0 8px 28px rgba(255,255,255,0.15);
}

.hero .btn--ghost {
  color: var(--c-white);
  border-color: rgba(255,255,255,0.4);
}

.hero .btn--ghost:hover {
  background: var(--c-white);
  color: var(--c-black);
  border-color: var(--c-white);
}

/* Scroll indicator */
.hero__scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  z-index: 2;
}

.hero__scroll-indicator span {
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-gray);
}

.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--c-gray), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50%       { opacity: 0.8; transform: scaleY(1.15); }
}

/* ── SOBRE SECTION ───────────────────────────── */
.sobre {
  padding: var(--sp-xl) 0;
  background: var(--c-white);
}

.sobre__grid {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: var(--sp-md);
  align-items: start;
}

.sobre__label-col {
  padding-top: 0.5rem;
}

.sobre__content-col {
  padding-left: 2rem;
  border-left: 1px solid var(--c-border);
}

.sobre__body {
  margin-top: 2rem;
}

.sobre__lead {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--c-dark);
  margin-bottom: 1.25rem;
}

.sobre__body p {
  font-size: 0.95rem;
  color: var(--c-gray-dark);
  line-height: 1.8;
  margin-bottom: 1rem;
}

/* Stats */
.sobre__stats {
  display: flex;
  gap: 0;
  margin-top: 3rem;
  border-top: 1px solid var(--c-border);
  border-left: 1px solid var(--c-border);
}

.stat {
  flex: 1;
  padding: 1.75rem 2rem;
  border-right: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
}

.stat__number {
  display: block;
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--c-black);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat__label {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-gray);
}

/* ── SERVIÇOS SECTION ────────────────────────── */
.servicos {
  padding: var(--sp-xl) 0;
  background: var(--c-off-white);
}

.servicos__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  border-top: 1px solid var(--c-border);
  border-left: 1px solid var(--c-border);
}

.service-card {
  padding: 2.5rem 2rem;
  border-right: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  background: var(--c-white);
  transition: background var(--t-med), transform var(--t-med);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: 0;
  background: var(--c-black);
  transition: height var(--t-slow);
}

.service-card:hover::before {
  height: 100%;
}

.service-card:hover {
  background: var(--c-black);
}

.service-card:hover .service-card__icon,
.service-card:hover .service-card__title,
.service-card:hover .service-card__desc {
  color: var(--c-white);
}

.service-card__icon {
  color: var(--c-gray-dark);
  margin-bottom: 1.5rem;
  transition: color var(--t-med);
}

.service-card__title {
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-black);
  margin-bottom: 0.75rem;
  transition: color var(--t-med);
}

.service-card__desc {
  font-size: 0.83rem;
  color: var(--c-gray);
  line-height: 1.7;
  transition: color var(--t-med);
}

.service-card--highlight {
  background: var(--c-off-white);
}

/* ── PORTFOLIO SECTION ───────────────────────── */
.portfolio {
  padding: var(--sp-xl) 0;
  background: var(--c-white);
}

.portfolio__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 12px;
}

.portfolio__item {
  position: relative;
  overflow: hidden;
  margin: 0;
}

.portfolio__item--large {
  grid-column: 1 / span 2;
  grid-row: 1 / span 1;
}

.portfolio__item--wide {
  grid-column: 1 / span 2;
}

.portfolio__placeholder {
  aspect-ratio: 4/3;
  background: var(--c-off-white);
  border: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  transition: border-color var(--t-med);
}

.portfolio__item--large .portfolio__placeholder {
  aspect-ratio: 16/9;
}

.portfolio__item--wide .portfolio__placeholder {
  aspect-ratio: 16/7;
}

.portfolio__placeholder:hover {
  border-color: var(--c-gray-subtle);
}

.portfolio__placeholder-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  color: var(--c-gray-subtle);
}

.portfolio__placeholder-inner span {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* Corner marks */
.portfolio__placeholder::before,
.portfolio__placeholder::after {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  border-color: var(--c-gray-subtle);
  border-style: solid;
  border-width: 0;
}

.portfolio__placeholder::before {
  top: 12px;
  left: 12px;
  border-top-width: 1px;
  border-left-width: 1px;
}

.portfolio__placeholder::after {
  bottom: 12px;
  right: 12px;
  border-bottom-width: 1px;
  border-right-width: 1px;
}

.portfolio__caption {
  margin-top: 0.6rem;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-gray);
}

/* ── VÍDEOS SECTION ──────────────────────────── */
.videos {
  padding: var(--sp-xl) 0;
  background: var(--c-near-black);
  color: var(--c-white);
}

.videos .section-label {
  color: var(--c-gray-light);
}

.videos .section-title {
  color: var(--c-white);
}

.videos .section-subtitle {
  color: var(--c-gray);
}

.videos__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.video-item {
  margin: 0;
}

.video-item__frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--c-border-dark);
  background: var(--c-dark);
  aspect-ratio: 16/9;
  transition: border-color var(--t-med);
}

.video-item__frame:hover {
  border-color: var(--c-gray-dark);
}

.video-item__frame iframe,
.video-item__frame video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border: none;
}

.video-item__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  cursor: default;
}

.video-item__play-btn {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.4);
  transition: border-color var(--t-med), color var(--t-med);
}

.video-item__frame:hover .video-item__play-btn {
  border-color: rgba(255,255,255,0.5);
  color: rgba(255,255,255,0.7);
}

.video-item__label {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-gray);
}

.video-item__caption {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-top: 1rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--c-border-dark);
}

.video-item__number {
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--c-gray);
}

.video-item__title {
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--c-gray-subtle);
}

/* ── CONTATO STRIP ───────────────────────────── */
.contato-strip {
  padding: var(--sp-xl) 0;
  background: var(--c-white);
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
}

.contato-strip__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
}

.contato-strip__title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: 0.75rem 0 1rem;
}

.contato-strip__text p {
  font-size: 0.9rem;
  color: var(--c-gray);
  max-width: 420px;
}

.contato-strip__actions {
  flex-shrink: 0;
}

/* ── FOOTER ──────────────────────────────────── */
.site-footer {
  background: var(--c-near-black);
  color: var(--c-gray-light);
  padding: var(--sp-xl) 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.4fr;
  gap: 3rem;
  padding-bottom: var(--sp-lg);
  border-bottom: 1px solid var(--c-border-dark);
}

.footer__logo {
  height: 52px;
  width: auto;
  object-fit: contain;
  margin-bottom: 1.25rem;
  
}

.footer__tagline {
  font-size: 0.82rem;
  color: var(--c-gray);
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.footer__cnpj {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--c-gray-dark);
  text-transform: uppercase;
}

.footer__nav-title {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-white);
  margin-bottom: 1.25rem;
}

.footer__nav ul {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.footer__nav ul li a {
  font-size: 0.82rem;
  color: var(--c-gray);
  transition: color var(--t-fast);
}

.footer__nav ul li a:hover {
  color: var(--c-white);
}

.footer__contact ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.footer__contact-link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.82rem;
  color: var(--c-gray);
  transition: color var(--t-fast);
}

.footer__contact-link:hover {
  color: var(--c-white);
}

.footer__social {
  margin-top: 0.5rem;
}

.footer__social-links {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.footer__social-btn {
  width: 38px;
  height: 38px;
  border: 1px solid var(--c-border-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-gray);
  transition: border-color var(--t-med), color var(--t-med), background var(--t-med);
}

.footer__social-btn:hover {
  border-color: var(--c-white);
  color: var(--c-white);
  background: rgba(255,255,255,0.06);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem 0;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.footer__bottom-text {
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  color: var(--c-gray-dark);
}

/* ── WHATSAPP FLOAT ──────────────────────────── */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 900;
  width: 56px;
  height: 56px;
  background: var(--c-black);
  color: var(--c-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0,0,0,0.25);
  transition: transform var(--t-med), box-shadow var(--t-med), background var(--t-med);
}

.whatsapp-float:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 8px 32px rgba(0,0,0,0.35);
  background: #1a1a1a;
}

/* ── SCROLL REVEAL ANIMATION ─────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.reveal-stagger > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal-stagger.visible > *:nth-child(1)  { opacity: 1; transform: none; transition-delay: 0.05s; }
.reveal-stagger.visible > *:nth-child(2)  { opacity: 1; transform: none; transition-delay: 0.10s; }
.reveal-stagger.visible > *:nth-child(3)  { opacity: 1; transform: none; transition-delay: 0.15s; }
.reveal-stagger.visible > *:nth-child(4)  { opacity: 1; transform: none; transition-delay: 0.20s; }
.reveal-stagger.visible > *:nth-child(5)  { opacity: 1; transform: none; transition-delay: 0.25s; }
.reveal-stagger.visible > *:nth-child(6)  { opacity: 1; transform: none; transition-delay: 0.30s; }
.reveal-stagger.visible > *:nth-child(7)  { opacity: 1; transform: none; transition-delay: 0.35s; }
.reveal-stagger.visible > *:nth-child(8)  { opacity: 1; transform: none; transition-delay: 0.40s; }
.reveal-stagger.visible > *:nth-child(9)  { opacity: 1; transform: none; transition-delay: 0.45s; }
.reveal-stagger.visible > *:nth-child(10) { opacity: 1; transform: none; transition-delay: 0.50s; }
.reveal-stagger.visible > *:nth-child(11) { opacity: 1; transform: none; transition-delay: 0.55s; }

/* ── RESPONSIVE — TABLET (≤1024px) ──────────── */
@media (max-width: 1024px) {
  :root {
    --sp-xl: 5rem;
  }

  .sobre__grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .sobre__label-col {
    padding-top: 0;
  }

  .sobre__content-col {
    padding-left: 0;
    border-left: none;
    border-top: 1px solid var(--c-border);
    padding-top: 2rem;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }

  .videos__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .contato-strip__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 2rem;
  }
}

/* ── RESPONSIVE — MOBILE (≤768px) ───────────── */
@media (max-width: 768px) {
  :root {
    --sp-xl: 4rem;
    --sp-lg: 3rem;
    --nav-h: 64px;
  }

  .container {
    padding: 0 1.25rem;
  }

  /* Nav mobile */
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: var(--c-white);
    border-bottom: 1px solid var(--c-border);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 0;
    gap: 0;
    transform: translateY(-110%);
    opacity: 0;
    transition: transform var(--t-slow), opacity var(--t-slow);
    pointer-events: none;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .nav-link {
    padding: 1rem 1.5rem;
    font-size: 0.8rem;
  }

  .nav-link::after {
    display: none;
  }

  .nav-link--cta {
    margin: 0.5rem 1.25rem;
    text-align: center;
    justify-content: center;
  }

  /* Hero */
  .hero {
    padding: calc(var(--nav-h) + 3rem) 1.5rem 5rem;
    text-align: center;
  }

  .hero__title {
    font-size: clamp(2.8rem, 14vw, 5rem);
  }

  .hero__scroll-indicator {
    display: none;
  }

  /* Sobre stats */
  .sobre__stats {
    flex-direction: column;
    border: none;
  }

  .stat {
    border: 1px solid var(--c-border);
    padding: 1.25rem 1.5rem;
  }

  /* Serviços */
  .servicos__grid {
    grid-template-columns: 1fr 1fr;
  }

  /* Portfolio */
  .portfolio__grid {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .portfolio__item--large,
  .portfolio__item--wide {
    grid-column: 1 / span 2;
  }

  /* Videos */
  .videos__grid {
    grid-template-columns: 1fr;
  }

  /* Footer */
  .footer__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }
}

/* ── RESPONSIVE — SMALL MOBILE (≤480px) ─────── */
@media (max-width: 480px) {
  :root {
    --sp-xl: 3.5rem;
  }

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

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

  .portfolio__item--large,
  .portfolio__item--wide {
    grid-column: 1;
  }

  .hero__actions {
    flex-direction: column;
    width: 100%;
  }

  .hero__actions .btn {
    width: 100%;
    justify-content: center;
  }

  .sobre__stats {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .stat {
    flex: 1 1 calc(50% - 0.5rem);
  }
}

/* ── ACCESSIBILITY ───────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .reveal,
  .reveal-stagger > * {
    opacity: 1 !important;
    transform: none !important;
  }
}

:focus-visible {
  outline: 2px solid var(--c-black);
  outline-offset: 3px;
}