/* =========================================================
   TELA DE CARREGAMENTO
   O monograma E.C. se desenha em traços, a linha mostra o
   progresso e, ao terminar, a tela se abre ao meio (metade
   de cima sobe, de baixo desce) revelando a hero.
   JS: js/carregamento.js
   ========================================================= */

body.is-loading { overflow: hidden; }

.loader {
  position: fixed; inset: 0; z-index: 10000;
  display: grid; place-items: center;
  color: #F5F0E8;
}
.loader.is-done { pointer-events: none; }

/* ---------- as duas metades ---------- */
.loader-panel {
  position: absolute; left: 0; right: 0; height: 50.5%;
  background: #08090b;
  transition: transform .5s cubic-bezier(.76, 0, .24, 1);
}
.loader-top { top: 0; background: radial-gradient(ellipse at 50% 100%, #1a110c 0%, #08090b 65%); }
.loader-bottom { bottom: 0; background: radial-gradient(ellipse at 50% 0%, #1a110c 0%, #08090b 65%); }
/* fio de luz na emenda, que some quando as metades se abrem */
.loader-bottom::before {
  content: ''; position: absolute; top: 0; left: 50%; width: min(60vw, 520px); height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, rgba(229, 169, 99, .5), transparent);
  opacity: 0; transition: opacity .3s ease;
}
.loader.is-opening .loader-bottom::before { opacity: 1; }
.loader.is-done .loader-top { transform: translateY(-100%); }
.loader.is-done .loader-bottom { transform: translateY(100%); }

/* ---------- conteúdo central ---------- */
.loader-inner {
  position: relative; z-index: 1;
  display: flex; flex-direction: column; align-items: center; gap: 1.4rem;
  transition: opacity .25s ease, transform .4s cubic-bezier(.76, 0, .24, 1);
}
.loader.is-done .loader-inner { opacity: 0; transform: scale(1.06); }

/* monograma */
.loader-mark { width: clamp(120px, 26vw, 160px); height: auto; overflow: visible; }
.loader-mark .stroke {
  /* pontas retas (butt): com "square" apareceriam pontinhos antes do traço começar */
  fill: none; stroke: #F5F0E8; stroke-width: 8; stroke-linecap: butt; stroke-linejoin: miter;
  stroke-dasharray: 1; stroke-dashoffset: 1;
  opacity: 0; /* invisível até o traço começar (evita pontinhos soltos) */
  animation: loader-draw .4s cubic-bezier(.65, 0, .35, 1) both;
}
.loader-mark .stroke.s1b { animation-delay: .16s; animation-duration: .22s; }
.loader-mark .stroke.s2 { animation-delay: .1s; }
.loader-mark .dot {
  fill: #e5a963; transform-box: fill-box; transform-origin: center; transform: scale(.9); opacity: 0;
  animation: loader-dot .22s var(--ease-out) forwards;
}
.loader-mark .dot.d1 { animation-delay: .24s; }
.loader-mark .dot.d2 { animation-delay: .34s; }
@keyframes loader-draw { 0% { opacity: 0; stroke-dashoffset: 1; } 1% { opacity: 1; } 100% { opacity: 1; stroke-dashoffset: 0; } }
@keyframes loader-dot { to { transform: none; opacity: 1; } }

/* linha de progresso (largura controlada pelo JS) */
.loader-line { width: clamp(120px, 26vw, 160px); height: 2px; border-radius: 2px; background: rgba(255, 255, 255, .08); overflow: hidden; }
.loader-line i {
  display: block; height: 100%; width: 100%;
  background: linear-gradient(90deg, #8e401e, #e5a963);
  box-shadow: 0 0 10px rgba(229, 169, 99, .6);
  transform-origin: left center; transform: scaleX(0);
}

.loader-tag {
  font-family: var(--mono); font-size: .66rem; letter-spacing: .24em; text-transform: uppercase;
  color: rgba(245, 240, 232, .45);
  animation: loader-fade .3s ease .1s both;
}
@keyframes loader-fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* visita repetida na mesma sessão: tudo já aparece pronto */
.loader.is-fast .loader-mark .stroke { animation: none; stroke-dashoffset: 0; opacity: 1; }
.loader.is-fast .loader-mark .dot { animation: none; transform: none; opacity: 1; }
.loader.is-fast .loader-tag { animation: none; }

/* ---------- enquanto carrega: hero "congelada" e navbar escondida ---------- */
body.is-loading .animate-fade-up,
body.is-loading .animate-fade-up-delay-1,
body.is-loading .animate-fade-up-delay-2,
body.is-loading .animate-fade-up-delay-3,
body.is-loading .animate-fade-up-delay-4 { animation-play-state: paused; }
body.is-loading nav { opacity: 0; transform: translateY(-16px); }

@media (prefers-reduced-motion: reduce) {
  .loader-panel, .loader-inner { transition-duration: .01ms; }
  .loader-mark .stroke { animation: none; stroke-dashoffset: 0; opacity: 1; }
  .loader-mark .dot { animation: none; transform: none; opacity: 1; }
  .loader-tag { animation: none; }
}