/* ===== CSS VARIABLES ===== */
:root {
  --color-primary: #008981;
  --color-primary-dark: #01787d;
  --color-primary-light: #0d9a6e;
  --color-secondary: #69572a;
  --color-secondary-dark: #9a9da0;
  --color-bg: #ffffff;
  --color-bg-alt: #f1f8f7;
  --color-text: #1e2d3d;
  --color-text-muted: #5a6e82;
  --color-border: #dde4ed;
  --color-white: #ffffff;
  --color-dark: #0d1b2a;

  --badge-offset: -20px;

  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.5rem;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  --border-radius-sm: 6px;
  --border-radius-md: 12px;
  --border-radius-lg: 20px;
  --border-radius-full: 9999px;

  --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.16);

  --header-height: 72px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* ===== UTILITIES ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--spacing-md);
}

.section {
  padding-block: var(--spacing-3xl);
}

.section__header {
  text-align: center;
  max-width: 660px;
  margin-inline: auto;
  margin-bottom: var(--spacing-2xl);
}

.section__tag {
  display: inline-block;
  background: rgba(0, 137, 129, 0.1);
  color: var(--color-primary);
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.35em 1em;
  border-radius: var(--border-radius-full);
  margin-bottom: var(--spacing-sm);
}

.section__title {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-dark);
  margin-bottom: var(--spacing-sm);
}

.section__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.highlight {
  color: var(--color-primary);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.8em 1.8em;
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-base);
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(0, 137, 129, 0.35);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--color-primary-dark);
  box-shadow: 0 6px 20px rgba(1, 120, 125, 0.45);
  transform: translateY(-2px);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn--outline:hover,
.btn--outline:focus-visible {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn--full {
  width: 100%;
}

/* ===== HEADER / NAV ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  z-index: 1000;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.header.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.nav__logo-text {
  font-size: var(--font-size-xl);
  color: var(--color-dark);
  letter-spacing: -0.02em;
}

.nav__logo-text strong {
  color: var(--color-primary);
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav__link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  position: relative;
  transition: color var(--transition);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  border-radius: var(--border-radius-full);
  transition: width var(--transition);
}

.nav__link:hover,
.nav__link.active-link {
  color: var(--color-primary);
}

.nav__link:hover::after,
.nav__link.active-link::after {
  width: 100%;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  gap: 5px;
  width: 28px;
  height: 28px;
}

.nav__toggle span {
  display: block;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav__toggle span:nth-child(1) { width: 24px; }
.nav__toggle span:nth-child(2) { width: 18px; }
.nav__toggle span:nth-child(3) { width: 24px; }

.nav__toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  width: 24px;
}

.nav__toggle.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav__toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  width: 24px;
}

/* ===== HERO ===== */
.hero {
  position: relative;
  padding-top: calc(var(--header-height) + var(--spacing-3xl));
  padding-bottom: var(--spacing-3xl);
  overflow: hidden;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(13, 154, 110, 0.16), transparent 58%),
    radial-gradient(900px 500px at 100% 0%, rgba(0, 137, 129, 0.18), transparent 62%),
    linear-gradient(135deg, #eef9f8 0%, #f8faf9 50%, #eef4f3 100%);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 60% at 80% 20%, rgba(0, 137, 129, 0.1) 0%, transparent 70%),
    radial-gradient(ellipse 45% 45% at 20% 80%, rgba(105, 87, 42, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero__container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__tag {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-sm);
}

.hero__title {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-dark);
  letter-spacing: -0.03em;
  margin-bottom: var(--spacing-md);
}

.hero__description {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: var(--spacing-lg);
}

.hero__buttons {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.hero__image {
  position: relative;
  height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__shape {
  position: absolute;
  border-radius: var(--border-radius-lg);
}

.hero__shape--1 {
  width: 280px;
  height: 280px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  top: 40px;
  right: 40px;
  opacity: 0.12;
  transform: rotate(15deg);
}

.hero__shape--2 {
  width: 200px;
  height: 200px;
  background: linear-gradient(135deg, var(--color-secondary), var(--color-secondary-dark));
  bottom: 50px;
  left: 20px;
  opacity: 0.1;
  transform: rotate(-10deg);
  border-radius: 50%;
}

.hero__shape--3 {
  width: 320px;
  height: 320px;
  border: 3px solid rgba(0, 137, 129, 0.15);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(25deg);
}

.hero__card {
  position: absolute;
  bottom: 60px;
  right: 10px;
  background: var(--color-white);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  z-index: 2;
  animation: float 4s ease-in-out infinite;
}

.hero__card-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: var(--color-white);
  border-radius: var(--border-radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  font-weight: 700;
  flex-shrink: 0;
}

.hero__card-title {
  font-weight: 700;
  font-size: var(--font-size-sm);
  color: var(--color-dark);
}

.hero__card-sub {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ===== SOBRE ===== */
.sobre {
  background: var(--color-bg);
}

.sobre__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.sobre__visual {
  position: relative;
}

.sobre__img-box {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: var(--border-radius-lg);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.sobre__img-inner {
  display: flex;
  align-items: center;
  justify-content: center;
}

.sobre__icon-large {
  font-size: 6rem;
  opacity: 0.9;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.2));
}

.sobre__badge {
  position: absolute;
  bottom: var(--badge-offset);
  right: var(--badge-offset);
  background: var(--color-white);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
  box-shadow: var(--shadow-lg);
  text-align: center;
  border: 3px solid var(--color-secondary);
}

.sobre__badge strong {
  display: block;
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.sobre__badge span {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  font-weight: 500;
}

.sobre__subtitle {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-dark);
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-xs);
}

.sobre__subtitle:first-child {
  margin-top: 0;
}

.sobre__text {
  color: var(--color-text-muted);
  line-height: 1.8;
  font-size: var(--font-size-base);
}

.sobre__text--intro {
  font-weight: 600;
  color: var(--color-text);
}

.sobre__values {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.sobre__value {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  background: var(--color-bg-alt);
  padding: 0.75em 1em;
  border-radius: var(--border-radius-sm);
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.sobre__timeline {
  margin-top: var(--spacing-3xl);
}

.sobre__timeline-header {
  margin-bottom: var(--spacing-xl);
}

.sobre__timeline-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.timeline__item {
  background: linear-gradient(135deg, rgba(0, 137, 129, 0.08), rgba(154, 157, 160, 0.12));
  border: 1px solid rgba(0, 137, 129, 0.16);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
}

.timeline__year {
  display: inline-block;
  margin-bottom: var(--spacing-xs);
  color: var(--color-primary);
  font-weight: 800;
  font-size: var(--font-size-sm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.timeline__item h4 {
  font-size: var(--font-size-lg);
  line-height: 1.25;
  margin-bottom: 0.45rem;
  color: var(--color-dark);
}

.timeline__item p {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  line-height: 1.7;
}

.timeline__item--current {
  background: linear-gradient(135deg, rgba(13, 154, 110, 0.2), rgba(0, 137, 129, 0.25));
  border-color: rgba(0, 137, 129, 0.35);
}

.sobre__value-icon {
  font-size: var(--font-size-lg);
}

/* ===== SERVIÇOS ===== */
.servicos {
  background: var(--color-bg-alt);
}

.servicos__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.servico__card {
  background: var(--color-white);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-lg);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.servico__card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-primary-light));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--transition);
}

.servico__card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.servico__card:hover::before {
  transform: scaleY(1);
}

.servico__icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-sm);
  display: block;
}

.servico__title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: var(--spacing-xs);
}

.servico__description {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--spacing-md);
}

.servico__link {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition), color var(--transition);
}

.servico__link:hover {
  gap: 8px;
  color: var(--color-primary-dark);
}

/* ===== NÚMEROS ===== */
.numeros {
  background: linear-gradient(130deg, var(--color-primary) 0%, var(--color-primary-dark) 50%, var(--color-secondary) 100%);
  padding-block: var(--spacing-2xl);
}

.numeros__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-lg);
}

.numero__item {
  text-align: center;
  color: var(--color-white);
}

.numero__value {
  font-size: var(--font-size-5xl);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
}

.numero__suffix {
  font-size: var(--font-size-3xl);
  font-weight: 800;
  color: #f5efde;
}

.numero__label {
  font-size: var(--font-size-base);
  color: rgba(255, 255, 255, 0.8);
  margin-top: var(--spacing-xs);
  font-weight: 500;
}

/* ===== CONTATO ===== */
.contato {
  background: var(--color-bg);
}

.contato__grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: var(--spacing-3xl);
  align-items: start;
}

.contato__info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.contato__item {
  display: flex;
  gap: var(--spacing-sm);
  align-items: flex-start;
}

.contato__item-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.contato__item-title {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 4px;
}

.contato__item-text {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.contato__item-text a {
  color: var(--color-primary);
  transition: color var(--transition);
}

.contato__item-text a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* Form */
.contato__form {
  background: var(--color-bg-alt);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form__label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
}

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

.form__input {
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  padding: 0.75em 1em;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
  outline: none;
}

.form__input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 137, 129, 0.15);
}

.form__input::placeholder {
  color: #a0aab4;
}

.form__input.error {
  border-color: #e03c3c;
}

.form__select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7' viewBox='0 0 12 7'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235a6e82' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1em center;
  padding-right: 2.5em;
  cursor: pointer;
}

.form__textarea {
  resize: vertical;
  min-height: 100px;
}

.form__feedback {
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-align: center;
  padding: 0.75em;
  border-radius: var(--border-radius-sm);
  min-height: 0;
  transition: all var(--transition);
}

.form__feedback.success {
  background: rgba(16, 185, 129, 0.1);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.form__feedback.error {
  background: rgba(224, 60, 60, 0.08);
  color: #e03c3c;
  border: 1px solid rgba(224, 60, 60, 0.25);
}

.form__field-error {
  display: block;
  font-size: var(--font-size-xs);
  color: #e03c3c;
  margin-top: 0.3em;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--color-dark);
  color: var(--color-white);
}

.footer__container {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--spacing-2xl);
  padding-top: var(--spacing-2xl);
  padding-bottom: var(--spacing-2xl);
}

.footer__brand .nav__logo-text {
  color: var(--color-white);
}

.footer__brand .nav__logo-text strong {
  color: var(--color-secondary);
}

.footer__tagline {
  margin-top: var(--spacing-sm);
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--font-size-sm);
  line-height: 1.6;
}

.footer__heading {
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-secondary);
  margin-bottom: var(--spacing-md);
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: 0.6em;
}

.footer__link {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.65);
  transition: color var(--transition);
}

.footer__link:hover {
  color: var(--color-white);
}

.footer__address {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.65);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-block: var(--spacing-md);
}

.footer__copy {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.45);
  text-align: center;
}

/* ===== BACK TO TOP ===== */
.back-to-top {
  position: fixed;
  bottom: var(--spacing-md);
  right: var(--spacing-md);
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  pointer-events: none;
  transform: translateY(16px);
  transition: opacity var(--transition), transform var(--transition);
  z-index: 900;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  :root {
    --font-size-5xl: 3rem;
  }

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

  .numeros__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-5xl: 2.5rem;
    --font-size-3xl: 1.75rem;
    --spacing-3xl: 4rem;
  }

  /* Mobile nav */
  .nav__menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: var(--color-white);
    flex-direction: column;
    gap: 0;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
  }

  .nav__menu.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav__link {
    display: block;
    padding: 0.85em var(--spacing-md);
    font-size: var(--font-size-base);
  }

  .nav__toggle {
    display: flex;
  }

  /* Hero */
  .hero__container {
    grid-template-columns: 1fr;
  }

  .hero__image {
    display: none;
  }

  .hero__title {
    font-size: var(--font-size-4xl);
  }

  /* Sobre */
  .sobre__grid {
    grid-template-columns: 1fr;
  }

  .sobre__badge {
    right: 10px;
    bottom: -10px;
  }

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

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

  /* Contato */
  .contato__grid {
    grid-template-columns: 1fr;
  }

  .contato__form {
    padding: var(--spacing-md);
  }

  /* Footer */
  .footer__container {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-5xl: 2.25rem;
    --font-size-4xl: 2rem;
  }

  .hero__buttons {
    flex-direction: column;
  }

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

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

  .numero__value {
    font-size: var(--font-size-3xl);
  }
}

/* ===== FOCUS VISIBLE (accessibility) ===== */
:focus-visible {
  outline: 2.5px solid var(--color-primary);
  outline-offset: 3px;
}

/* ===== LANGUAGE SWITCHER ===== */
.lang-switcher {
  display: flex;
  align-items: center;
  gap: 3px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-full);
  padding: 4px;
  margin-inline: var(--spacing-sm);
  flex-shrink: 0;
}

.lang-btn {
  padding: 5px 11px;
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  background: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  line-height: 1;
}

.lang-btn.active {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 2px 8px rgba(0, 137, 129, 0.35);
}

.lang-btn:hover:not(.active) {
  color: var(--color-primary);
  background: rgba(0, 137, 129, 0.08);
}

/* ===== RTL / ARABIC SUPPORT ===== */

/* Arabic font */
:root {
  --font-family-rtl: 'Cairo', system-ui, sans-serif;
}

[dir="rtl"] body {
  font-family: var(--font-family-rtl);
}

[dir="rtl"] .nav__logo-text,
[dir="rtl"] .nav__link,
[dir="rtl"] .lang-btn,
[dir="rtl"] .btn,
[dir="rtl"] .section__tag,
[dir="rtl"] .section__title,
[dir="rtl"] .section__subtitle,
[dir="rtl"] .hero__tag,
[dir="rtl"] .hero__title,
[dir="rtl"] .hero__description,
[dir="rtl"] .hero__card-title,
[dir="rtl"] .hero__card-sub,
[dir="rtl"] .sobre__subtitle,
[dir="rtl"] .sobre__text,
[dir="rtl"] .sobre__value,
[dir="rtl"] .servico__title,
[dir="rtl"] .servico__description,
[dir="rtl"] .servico__link,
[dir="rtl"] .numero__label,
[dir="rtl"] .contato__item-title,
[dir="rtl"] .contato__item-text,
[dir="rtl"] .form__label,
[dir="rtl"] .form__input,
[dir="rtl"] .footer__tagline,
[dir="rtl"] .footer__heading,
[dir="rtl"] .footer__link,
[dir="rtl"] .footer__copy {
  font-family: var(--font-family-rtl);
}

/* Flip the card left-border accent to right side */
[dir="rtl"] .servico__card::before {
  left: auto;
  right: 0;
}

/* Flip the about-badge (absolute positioned bottom-right → bottom-left) */
[dir="rtl"] .sobre__badge {
  right: auto;
  left: var(--badge-offset);
}

/* Flip back-to-top button */
[dir="rtl"] .back-to-top {
  right: auto;
  left: var(--spacing-md);
}

/* Flip the select dropdown arrow */
[dir="rtl"] .form__select {
  background-position: left 1em center;
  padding-right: 1em;
  padding-left: 2.5em;
}

/* Flip the nav-link underline indicator */
[dir="rtl"] .nav__link::after {
  left: auto;
  right: 0;
}

/* Flip the hero floating card */
[dir="rtl"] .hero__card {
  right: auto;
  left: 10px;
}

/* Flip the sobre badge on small screens */
@media (max-width: 768px) {
  [dir="rtl"] .sobre__badge {
    left: 10px;
    right: auto;
  }
}