/* =========================================================================
   LAYOUT — folha de desenho, cabeçalho, seções, rodapé
   ========================================================================= */

/* ---------- A folha: grade + réguas laterais + progresso ---------- */
.sheet {
  position: fixed;
  inset: 0;
  z-index: var(--z-sheet);
  pointer-events: none;
  overflow: hidden;
}

.sheet__grid {
  position: absolute;
  inset: -1px;
  background-image:
    linear-gradient(to right, rgba(150, 180, 224, 0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(150, 180, 224, 0.045) 1px, transparent 1px);
  background-size: 96px 96px;
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(120% 90% at 50% 0%, #000 20%, transparent 78%);
  opacity: 0.9;
}

.sheet__rail {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--line) 8%, var(--line) 92%, transparent);
  display: none;
}

.sheet__rail::before {
  /* marcações de régua */
  content: "";
  position: absolute;
  inset: 0;
  width: 7px;
  background-image: repeating-linear-gradient(
    to bottom,
    var(--line-2) 0 1px,
    transparent 1px 48px
  );
  opacity: 0.85;
}

.sheet__rail--l { left: clamp(18px, 2.6vw, 42px); }
.sheet__rail--r {
  right: clamp(18px, 2.6vw, 42px);
  transform: scaleX(-1);
}

.sheet__fill {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom, var(--cyan-400), var(--blue-600) 55%, transparent);
  transform: scaleY(0);
  transform-origin: top;
  will-change: transform;
  opacity: 0.9;
}

/* ---------- Cabeçalho ---------- */
.site-head {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-head);
  height: 68px;
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background-color var(--t-base) var(--ease-out),
              border-color var(--t-base) var(--ease-out),
              backdrop-filter var(--t-base) var(--ease-out);
}

.site-head__inner {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gut);
  display: flex;
  align-items: center;
  gap: var(--s-5);
}

.site-head[data-stuck="true"] {
  background: rgba(4, 7, 14, 0.76);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom-color: var(--line);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  flex: none;
  padding-block: 6px;
}

.brand__mark { width: 26px; height: 26px; flex: none; }

.brand__type {
  display: flex;
  flex-direction: column;
  line-height: 1;
  gap: 3px;
}

.brand__name {
  font-family: var(--font-display);
  font-weight: 800;
  font-stretch: 118%;
  font-size: 1.0625rem;
  letter-spacing: 0.01em;
}

.brand__sub {
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--text-4);
}

.nav {
  display: none;
  align-items: center;
  gap: 2px;
  margin-left: auto;
}

.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  height: 34px;
  padding: 0 12px;
  font-size: var(--fs-base);
  font-weight: 500;
  color: var(--text-2);
  border-radius: var(--r-sm);
  transition: color var(--t-fast) var(--ease-out), background-color var(--t-fast) var(--ease-out);
}
.nav__link:hover { color: var(--text); background: rgba(255, 255, 255, 0.04); }
.nav__link[aria-current="true"] { color: var(--text); }
.nav__link[aria-current="true"]::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 4px;
  height: 1px;
  background: var(--cyan-400);
  box-shadow: 0 0 8px rgba(92, 231, 255, 0.8);
}

.head-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}
.nav ~ .head-actions { margin-left: 0; }

.head-actions .btn--wa { min-height: 38px; padding: 0 14px; font-size: var(--fs-sm); }

/* Botão do menu mobile */
.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  flex: none;
  border: 1px solid var(--line-2);
  border-radius: var(--r-sm);
  color: var(--text);
  background: rgba(10, 18, 33, 0.5);
  transition: border-color var(--t-fast) var(--ease-out);
}
.nav-toggle:hover { border-color: var(--line-3); }

.nav-toggle__bars {
  position: relative;
  width: 17px;
  height: 11px;
}
.nav-toggle__bars i {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: currentColor;
  transition: transform var(--t-base) var(--ease-out), opacity var(--t-fast) linear;
}
.nav-toggle__bars i:nth-child(1) { top: 0; }
.nav-toggle__bars i:nth-child(2) { top: 4.75px; }
.nav-toggle__bars i:nth-child(3) { top: 9.5px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(1) { transform: translateY(4.75px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars i:nth-child(3) { transform: translateY(-4.75px) rotate(-45deg); }

/* Painel mobile */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: var(--z-nav);
  display: grid;
  grid-template-rows: 68px 1fr auto;
  background: rgba(3, 6, 12, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 0 var(--gut) calc(var(--s-6) + env(safe-area-inset-bottom));
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--t-base) var(--ease-out), visibility 0s linear var(--t-base);
}
.mobile-nav[data-open="true"] {
  opacity: 1;
  visibility: visible;
  transition-delay: 0s;
}
.mobile-nav__top { display: flex; align-items: center; justify-content: space-between; }
.mobile-nav__list { display: grid; align-content: center; gap: 2px; }
.mobile-nav__link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 8vw, 2.5rem);
  font-weight: 700;
  font-stretch: 110%;
  letter-spacing: -0.02em;
  border-bottom: 1px solid var(--line);
  color: var(--text);
}
.mobile-nav__link span { font-family: var(--font-mono); font-size: 10px; color: var(--text-4); letter-spacing: 0.1em; }
.mobile-nav__foot { display: grid; gap: 10px; }

/* ---------- Seções ---------- */
.sec {
  position: relative;
  z-index: var(--z-content);
  padding-block: var(--section-y);
}

.sec--line { border-top: 1px solid var(--line); }

.sec__inner {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gut);
}

.sec-head {
  display: grid;
  gap: var(--s-5);
  margin-bottom: clamp(36px, 5vw, 68px);
}

.sec-head__title { max-width: 20ch; }
.sec-head__title--wide { max-width: 26ch; }

.sec-head__aside { display: grid; gap: var(--s-4); align-content: end; }

/* Linha de título + medida */
.title-block { display: grid; gap: 14px; }

/* ---------- Rodapé ---------- */
.site-foot {
  position: relative;
  z-index: var(--z-content);
  border-top: 1px solid var(--line-2);
  background: linear-gradient(to bottom, rgba(6, 10, 20, 0.4), rgba(2, 4, 10, 0.9));
  padding-top: clamp(48px, 6vw, 80px);
}

.site-foot__grid {
  display: grid;
  gap: var(--s-7);
  padding-bottom: var(--s-8);
}

.site-foot__brand { display: grid; gap: var(--s-4); max-width: 34ch; }
.site-foot__brand p { font-size: var(--fs-sm); color: var(--text-3); line-height: 1.65; }

.site-foot__cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--s-6);
}

.site-foot__col h3 {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-4);
  margin-bottom: var(--s-3);
}

.site-foot__col ul { list-style: none; padding: 0; display: grid; gap: 9px; }
.site-foot__col a {
  font-size: var(--fs-sm);
  color: var(--text-2);
  display: inline-flex;
  align-items: center;
  gap: 7px;
  text-decoration-color: transparent;
  text-underline-offset: 3px;
  transition: color var(--t-fast) var(--ease-out), text-decoration-color var(--t-fast);
}
.site-foot__col a:hover { color: var(--cyan-300); text-decoration: underline; }
.site-foot__col a svg { width: 15px; height: 15px; opacity: 0.7; }

.site-foot__bar {
  border-top: 1px solid var(--line);
  padding-block: 18px 22px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-4);
}

.site-foot__egg {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-4);
  background: none;
  border: 1px dashed var(--line-2);
  border-radius: var(--r-sm);
  padding: 5px 9px;
  font: inherit;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: color var(--t-fast), border-color var(--t-fast);
}
.site-foot__egg:hover { color: var(--cyan-300); border-color: var(--line-blue); }
.site-foot__egg kbd {
  font: inherit;
  padding: 1px 5px;
  border: 1px solid var(--line-2);
  border-radius: 3px;
  color: var(--text-2);
  background: rgba(255, 255, 255, 0.04);
}

/* ---------- WhatsApp flutuante (mobile) ---------- */
.wa-float {
  position: fixed;
  right: 16px;
  bottom: calc(16px + env(safe-area-inset-bottom));
  z-index: var(--z-float);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: linear-gradient(180deg, #22dd88, #0fae62);
  color: #032418;
  border: 1px solid rgba(180, 255, 220, 0.5);
  box-shadow: 0 14px 30px -10px rgba(0, 0, 0, 0.8), 0 0 0 6px rgba(23, 201, 118, 0.1);
  transition: transform var(--t-base) var(--ease-out), opacity var(--t-base) var(--ease-out),
              visibility var(--t-base);
}
.wa-float svg { width: 27px; height: 27px; }
.wa-float:active { transform: scale(0.94); }
.wa-float[data-hidden="true"] {
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  pointer-events: none;
}
.wa-float::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: 50%;
  border: 1px solid rgba(46, 224, 140, 0.55);
  animation: wa-ping 3.4s var(--ease-out) infinite;
}
@keyframes wa-ping {
  0% { transform: scale(1); opacity: 0.7; }
  60%, 100% { transform: scale(1.55); opacity: 0; }
}

@media (min-width: 720px) {
  .site-head { height: 76px; }
  .mobile-nav { grid-template-rows: 76px 1fr auto; }
  html { scroll-padding-top: 96px; }
}

@media (min-width: 981px) {
  .nav { display: flex; }
  .nav-toggle { display: none; }
  .mobile-nav { display: none; }
  .wa-float { display: none; }
  .sheet__rail { display: block; }
  .sec-head {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
    gap: clamp(32px, 5vw, 72px);
  }
  .site-foot__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr);
    gap: clamp(40px, 6vw, 88px);
  }
}

/* ---------- Celulares estreitos: cabeçalho em uma linha só ---------- */
@media (max-width: 430px) {
  .site-head__inner { gap: 8px; padding-inline: 12px; }
  .brand { gap: 8px; }
  .brand__mark { width: 22px; height: 22px; }
  .brand__name { font-size: 0.9375rem; }
  .brand__sub { font-size: 7px; letter-spacing: 0.2em; }
  .head-actions { gap: 6px; }
  .head-actions .btn--wa {
    min-height: 34px;
    padding: 0 9px;
    gap: 5px;
    font-size: 10.5px;
  }
  .head-actions .btn--wa svg { width: 14px; height: 14px; }
  .nav-toggle { width: 34px; height: 34px; }
}

@media (max-width: 480px) {
  .wa-float { width: 46px; height: 46px; right: 12px; bottom: calc(12px + env(safe-area-inset-bottom)); }
  .wa-float svg { width: 21px; height: 21px; }
  html.is-locked .wa-float { display: none; }
}

/* Botão de e-mail no cabeçalho (só onde há espaço; o menu mobile tem o seu) */
.head-mail {
  display: none;
  width: 38px;
  padding: 0;
  min-height: 38px;
  color: var(--text-2);
  flex: none;
}

@media (min-width: 431px) {
  .head-mail { display: inline-flex; }
}

/* A partir de tablet o cabeçalho fixo já carrega o CTA — o flutuante sai */
@media (min-width: 768px) {
  .wa-float { display: none; }
}

/* Menu mobile com 9 itens: cabe na tela e rola se precisar */
@media (max-width: 700px) {
  .mobile-nav__list {
    align-content: start;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding-block: 6px 12px;
  }
  .mobile-nav__link {
    padding: 10px 0;
    font-size: clamp(1.4rem, 6.6vw, 2rem);
  }
}

/* Telas curtas: o menu de 9 itens precisa caber sem esconder o último */
@media (max-width: 700px) and (max-height: 760px) {
  .mobile-nav__link { padding: 7px 0; font-size: clamp(1.25rem, 5.8vw, 1.7rem); }
}
@media (max-width: 700px) and (max-height: 660px) {
  .mobile-nav__link { padding: 5px 0; font-size: 1.12rem; }
}