:root {
  --vinho: #2a0d18;
  --vela: #f0c987;
  --creme: #f5e9e4;
  --creme-soft: #d2b9be;
  --brilho: rgba(240, 201, 135, 0.28);
  --sombra: 29, 7, 17;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: max(2rem, env(safe-area-inset-top)) max(1.25rem, env(safe-area-inset-right))
    max(2rem, env(safe-area-inset-bottom)) max(1.25rem, env(safe-area-inset-left));
  background: var(--vinho);
  color: var(--creme);
  font-family: 'Bricolage Grotesque', system-ui, sans-serif;
  overflow-x: hidden;
}

::selection {
  background: var(--vela);
  color: var(--vinho);
}

/* Fundo: brilho de vela respirando embaixo. */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse 90% 60% at 50% 115%, var(--brilho), transparent 70%);
  animation: respira 7s ease-in-out infinite alternate;
}

@keyframes respira {
  from { opacity: 0.55; }
  to { opacity: 1; }
}

#fundo {
  position: fixed;
  inset: 0;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
  transition: opacity 1.5s ease;
}

#fundo.on {
  opacity: 1;
}

/* Onda de cor: uma faixa clara atravessa as ripas na diagonal, sem parar. */
#fundo {
  -webkit-mask-image: linear-gradient(115deg, rgba(0, 0, 0, 0.22) 30%, #000 47%, #000 53%, rgba(0, 0, 0, 0.22) 70%);
  mask-image: linear-gradient(115deg, rgba(0, 0, 0, 0.22) 30%, #000 47%, #000 53%, rgba(0, 0, 0, 0.22) 70%);
  -webkit-mask-size: 300% 100%;
  mask-size: 300% 100%;
  animation: onda 9s linear infinite;
}

@keyframes onda {
  from { -webkit-mask-position: 100% 0; mask-position: 100% 0; }
  to { -webkit-mask-position: 0% 0; mask-position: 0% 0; }
}

main {
  position: relative;
  z-index: 1;
  width: min(100%, 52rem);
  margin: 0 auto;
}

/* Sombra vinho atrás do texto, para a onda não atrapalhar a leitura. */
main::before {
  content: '';
  position: absolute;
  inset: -4rem -3rem;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(closest-side, rgba(var(--sombra), 0.82), rgba(var(--sombra), 0.5) 60%, transparent);
}

h1 {
  margin: 0;
  font-size: clamp(2.6rem, 9vw, 6rem);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

/* Entrada do título, letra por letra (o JS divide o texto em .w > .c). */
.w {
  display: inline-block;
  white-space: nowrap;
}

.c {
  display: inline-block;
  opacity: 0;
}

.go .c {
  animation: letra 1s cubic-bezier(0.215, 0.61, 0.355, 1) both;
  animation-delay: calc(var(--i) * 40ms);
}

@keyframes letra {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: none; }
}

.lead {
  margin: 1.75rem 0 0;
  max-width: 34ch;
  font-size: 1.2rem;
  line-height: 1.55;
  color: var(--creme-soft);
}

dl {
  margin: 2rem 0 0;
  display: grid;
  gap: 0.9rem;
}

dt {
  font-size: 0.85rem;
  color: var(--creme-soft);
}

dd {
  margin: 0.1rem 0 0;
  font-size: 1.25rem;
  font-weight: 600;
}

.actions {
  margin-top: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.btn {
  font: inherit;
  font-size: 1.1rem;
  font-weight: 700;
  min-height: 3.25rem;
  padding: 0.95rem 1.8rem;
  border-radius: 0.6rem;
  cursor: pointer;
  border: 2px solid var(--vela);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.btn-yes {
  background: var(--vela);
  color: var(--vinho);
}

.btn-no {
  position: relative;
  z-index: 2;
  background: var(--vinho);
  color: var(--vela);
  will-change: transform;
}

.btn:focus-visible,
#answer button:focus-visible {
  outline: 3px solid var(--creme);
  outline-offset: 3px;
}

#answer {
  margin-top: 2rem;
  max-width: 34ch;
  font-size: 1.2rem;
  line-height: 1.5;
}

#answer:empty {
  display: none;
}

#answer p {
  margin: 0;
}

.horarios {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.9rem;
}

.btn-hora {
  background: transparent;
  color: var(--vela);
}

.btn-hora:hover:not(:disabled) {
  background: var(--vela);
  color: var(--vinho);
}

.btn:disabled {
  opacity: 0.55;
  cursor: default;
}

#answer .status {
  min-height: 1.5em;
  margin-top: 0.75rem;
  font-size: 1rem;
  color: var(--creme-soft);
}

@media (prefers-reduced-motion: no-preference) {
  .btn-no {
    transition: transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
  }
}

@media (prefers-reduced-motion: reduce) {
  body::before {
    animation: none;
  }
}

@media (max-width: 480px) {
  .btn-yes {
    width: 100%;
  }
}