/* Base Alpha: componentes compartilhados */

/* ---------- Botões ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 50px;
  padding: 0 1.4rem;
  border: 0;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition:
    transform 160ms var(--ease-out),
    background-color 200ms ease,
    color 200ms ease,
    box-shadow 200ms ease;
}

.btn:active {
  transform: scale(0.97);
}

.btn--primary {
  background: var(--blue);
  color: #fff;
}

.btn--primary:active {
  background: var(--blue-press);
}

.btn--quiet {
  background: var(--mist);
  color: var(--ink);
  box-shadow: inset 0 0 0 1px var(--line);
}

.btn--light {
  background: #fff;
  color: var(--ink);
}

.btn--outline-night {
  background: transparent;
  color: var(--on-night);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.28);
}

.btn--sm {
  min-height: 40px;
  padding: 0 1rem;
  font-size: var(--text-sm);
}

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

.btn .icon {
  width: 20px;
  height: 20px;
}

@media (hover: hover) and (pointer: fine) {
  .btn--primary:hover {
    background: var(--blue-press);
  }
  .btn--quiet:hover {
    background: #eaeef5;
  }
  .btn--light:hover {
    background: #eef3fb;
  }
  .btn--outline-night:hover {
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.6);
  }
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  gap: 0.35rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--blue);
}

.link-arrow .icon {
  width: 18px;
  height: 18px;
  transition: transform 200ms var(--ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .link-arrow:hover .icon {
    transform: translateX(3px);
  }
}

/* ---------- Cabeçalho ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  padding-top: env(safe-area-inset-top, 0px);
  background: rgba(255, 255, 255, 0.78);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
}

/* Borda de rolagem: aparece só quando há conteúdo por baixo */
.site-header::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: var(--line);
  opacity: 0;
  transition: opacity 200ms ease;
}

.site-header[data-scrolled]::after,
.site-header[data-menu-open]::after {
  opacity: 1;
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  height: var(--header-h);
}

/* Assinatura: símbolo + "BaseAlpha" + descritor "Virtual Coworking" */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin-right: auto;
  color: var(--ink);
  text-decoration: none;
}

.brand img {
  width: 38px;
  height: 38px;
  flex: none;
}

.wordmark {
  display: grid;
  justify-items: start;
  line-height: 1;
}

.wordmark-name {
  font-size: 1.125rem;
  font-weight: 650;
  letter-spacing: -0.025em;
}

.wordmark-tag {
  margin-top: 0.3rem;
  color: var(--ink-3);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  /* compensa o espaço que o tracking deixa após a última letra */
  margin-right: -0.16em;
}

.nav-desktop {
  display: none;
}

.nav-desktop ul {
  display: flex;
  gap: 0.25rem;
}

.nav-desktop a {
  display: block;
  padding: 0.5rem 0.7rem;
  border-radius: 8px;
  color: var(--ink-2);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  transition: color 150ms ease;
}

.nav-desktop a[aria-current="page"] {
  color: var(--ink);
  font-weight: 600;
}

@media (hover: hover) and (pointer: fine) {
  .nav-desktop a:hover {
    color: var(--ink);
  }
}

.header-cta {
  display: none;
}

.menu-btn {
  position: relative;
  width: 44px;
  height: 44px;
  margin-right: -10px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
}

.menu-btn span {
  position: absolute;
  left: 12px;
  width: 20px;
  height: 1.75px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform 250ms var(--ease-in-out);
}

.menu-btn span:first-child {
  transform: translateY(-4px);
}

.menu-btn span:last-child {
  transform: translateY(4px);
}

.menu-btn[aria-expanded="true"] span:first-child {
  transform: rotate(45deg);
}

.menu-btn[aria-expanded="true"] span:last-child {
  transform: rotate(-45deg);
}

@media (min-width: 64rem) {
  .nav-desktop,
  .header-cta {
    display: block;
  }
  .header-cta {
    display: inline-flex;
  }
  .menu-btn,
  .menu-sheet {
    display: none;
  }
}

/* ---------- Menu no celular ---------- */

.menu-sheet {
  position: fixed;
  inset: calc(var(--header-h) + env(safe-area-inset-top, 0px)) 0 0;
  z-index: 49;
  display: flex;
  flex-direction: column;
  padding: 1.5rem var(--gutter) calc(1.5rem + env(safe-area-inset-bottom, 0px));
  overflow-y: auto;
  overscroll-behavior: contain;
  background: var(--paper);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  /* Saída: rápida, pelo mesmo caminho da entrada */
  transition:
    opacity 200ms var(--ease-out),
    transform 200ms var(--ease-out),
    visibility 0s linear 200ms;
}

.menu-sheet[data-open] {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition:
    opacity 300ms var(--ease-drawer),
    transform 300ms var(--ease-drawer),
    visibility 0s;
}

.menu-sheet ul {
  display: grid;
}

.menu-sheet li a {
  display: block;
  padding: 0.7rem 0;
  color: var(--ink);
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.025em;
  text-decoration: none;
}

.menu-sheet li a[aria-current="page"] {
  color: var(--blue);
}

.menu-sheet li {
  opacity: 0;
  transform: translateY(-6px);
  transition:
    opacity 200ms var(--ease-out),
    transform 200ms var(--ease-out);
}

.menu-sheet[data-open] li {
  opacity: 1;
  transform: none;
  transition-duration: 300ms;
  transition-delay: calc(var(--i, 0) * 35ms);
}

.menu-sheet .menu-foot {
  display: grid;
  gap: 1rem;
  margin-top: auto;
  padding-top: 2rem;
  color: var(--ink-3);
  font-size: var(--text-sm);
}

.menu-foot address {
  font-style: normal;
}

html[data-menu-open] {
  overflow: hidden;
}

/* ---------- Títulos de seção ---------- */

.head {
  max-width: 44rem;
  margin-bottom: clamp(2.5rem, 2rem + 2vw, 4rem);
}

.head h2 {
  font-size: var(--text-3xl);
}

.head p {
  margin-top: 1.1rem;
  color: var(--ink-3);
  font-size: var(--text-lg);
  line-height: 1.5;
}

.head--center {
  margin-inline: auto;
  text-align: center;
}

/* ---------- Topo das páginas internas ---------- */

.page-hero {
  padding-top: clamp(3.5rem, 2rem + 6vw, 7rem);
  padding-bottom: clamp(3rem, 2rem + 4vw, 5.5rem);
}

.page-hero h1 {
  max-width: 18ch;
  font-size: var(--text-4xl);
  letter-spacing: -0.035em;
  line-height: 1.04;
}

.page-hero p {
  max-width: 38rem;
  margin-top: 1.4rem;
  color: var(--ink-3);
  font-size: var(--text-xl);
  line-height: 1.45;
}

.crumbs {
  margin-bottom: 1.5rem;
  font-size: var(--text-sm);
  color: var(--ink-3);
}

.crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.crumbs li + li::before {
  content: "/";
  margin-right: 0.4rem;
  color: var(--line-strong);
}

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

@media (hover: hover) and (pointer: fine) {
  .crumbs a:hover {
    color: var(--ink);
  }
}

/* ---------- Faixa noturna (chamada final) ---------- */

.night {
  background: var(--night);
  color: var(--on-night);
}

.cta-band {
  position: relative;
  overflow: hidden;
  padding-block: clamp(5rem, 3rem + 8vw, 9rem);
}

.cta-band::before {
  content: "";
  position: absolute;
  width: 60rem;
  height: 60rem;
  right: -22rem;
  top: -18rem;
  background: radial-gradient(closest-side, rgba(0, 102, 224, 0.35), transparent);
  pointer-events: none;
}

.cta-grid {
  position: relative;
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.cta-band h2 {
  max-width: 16ch;
  font-size: var(--text-3xl);
  letter-spacing: -0.03em;
}

.cta-band p {
  max-width: 34rem;
  margin-top: 1.1rem;
  color: var(--on-night-2);
  font-size: var(--text-lg);
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.cta-lockup {
  display: grid;
  justify-items: center;
  gap: 1.25rem;
  justify-self: center;
}

.cta-mark {
  width: min(52vw, 260px);
}

.cta-lockup .wordmark {
  justify-items: center;
  text-align: center;
}

.cta-lockup .wordmark-name {
  font-size: 1.75rem;
  letter-spacing: -0.03em;
}

.cta-lockup .wordmark-tag {
  margin-top: 0.5rem;
  margin-right: 0;
  padding-left: 0.24em; /* centra opticamente o texto com tracking */
  color: var(--on-night-2);
  font-size: 0.75rem;
  letter-spacing: 0.24em;
}

@media (min-width: 48rem) {
  .cta-grid {
    grid-template-columns: 1fr auto;
  }
  .cta-mark {
    width: 280px;
  }
}

/* ---------- Rodapé ---------- */

.site-footer {
  padding: 4rem 0 calc(2rem + env(safe-area-inset-bottom, 0px));
  background: #070e22;
  color: var(--on-night-2);
  font-size: var(--text-sm);
}

.footer-grid {
  display: grid;
  gap: 2.5rem;
}

.site-footer .brand--footer {
  gap: 0.75rem;
  color: #fff;
}

.brand--footer img {
  width: 48px;
  height: 48px;
}

.brand--footer .wordmark-name {
  font-size: 1.375rem;
}

.brand--footer .wordmark-tag {
  margin-top: 0.4rem;
  color: var(--on-night-3);
  font-size: 0.6875rem;
}

.footer-about {
  max-width: 22rem;
  margin-top: 1rem;
  color: var(--on-night-3);
}

.site-footer h2 {
  margin-bottom: 0.9rem;
  color: #fff;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0;
}

.site-footer ul {
  display: grid;
  gap: 0.15rem;
}

.site-footer a {
  color: var(--on-night-2);
  text-decoration: none;
}

.site-footer li > a {
  display: inline-block;
  padding-block: 0.3rem;
}

.site-footer address {
  font-style: normal;
  line-height: 1.6;
}

@media (hover: hover) and (pointer: fine) {
  .site-footer a:hover {
    color: #fff;
  }
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--on-night-3);
  font-size: 0.8125rem;
}

@media (min-width: 48rem) {
  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }
}

/* ---------- Botão flutuante de WhatsApp ---------- */

.wa-float {
  position: fixed;
  right: calc(1rem + env(safe-area-inset-right, 0px));
  bottom: calc(1rem + env(safe-area-inset-bottom, 0px));
  z-index: 40;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--whatsapp);
  color: #fff;
  box-shadow:
    0 2px 6px rgba(11, 21, 48, 0.18),
    0 12px 28px -8px rgba(11, 21, 48, 0.35);
  transition:
    transform 160ms var(--ease-out),
    opacity 200ms var(--ease-out),
    visibility 0s linear 200ms;
  animation: wa-in 450ms var(--ease-out) 700ms backwards;
}

.wa-float svg {
  width: 30px;
  height: 30px;
  fill: currentColor;
}

.wa-float:active {
  transform: scale(0.94);
}

html[data-menu-open] .wa-float {
  opacity: 0;
  visibility: hidden;
}

@keyframes wa-in {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.92);
  }
}

@media (min-width: 64rem) {
  .wa-float {
    right: 2rem;
    bottom: 2rem;
  }
}

/* ---------- Revelação ao rolar (só com JS; sem JS tudo aparece) ---------- */

.js .reveal {
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity 700ms var(--ease-out),
    transform 700ms var(--ease-out);
  transition-delay: calc(var(--i, 0) * 70ms);
}

.js .reveal.is-in {
  opacity: 1;
  transform: none;
}

/* ---------- Selo "exemplo" ---------- */

.sample-note {
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  color: var(--ink-3);
  font-size: 0.8125rem;
}

.sample-note::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex: none;
  transform: translateY(-1px);
  background: var(--line-strong);
}

/* ---------- Pendência para o cliente preencher ---------- */

.todo {
  padding: 0 0.3em;
  border-radius: 4px;
  background: #fff4dc;
  color: #7a4b00;
  font-weight: 500;
}

/* ---------- Movimento reduzido ---------- */

@media (prefers-reduced-motion: reduce) {
  .js .reveal {
    transform: none;
    transition: opacity 300ms ease;
  }
  .menu-sheet,
  .menu-sheet[data-open],
  .menu-sheet li,
  .menu-sheet[data-open] li {
    transform: none;
  }
  .wa-float {
    animation-name: wa-fade;
  }
  .btn:active,
  .wa-float:active {
    transform: none;
  }
}

@keyframes wa-fade {
  from {
    opacity: 0;
  }
}