/* === VARIÁVEIS CSS === */
html {
  scroll-behavior: smooth !important;
}
:root {
  --cor-fundo: #000000;
  --cor-texto: #ffffff;
  --cor-destaque: red;
  --cor-primaria: #1ab7d2;
  --cor-secundaria: #d9d9d9;
  --cor-hover: rgba(255, 0, 0, 0.3);

  --font-padrao: 'Poppins', Arial, sans-serif;
  --transition-padrao: 0.2s ease-in-out;
}

/* === RESET & BASE === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: var(--font-padrao);
}

body {
  background-color: var(--cor-fundo);
  color: var(--cor-texto);
  padding-top: 90px;
}

.interface {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.flex {
  display: flex;
}

h2.titulo {
  font-size: 37px;
  text-align: center;
  color: var(--cor-texto);
}

h2.titulo span {
  color: var(--cor-destaque);
}

/* === BOTÕES === */
button,
.btn-contato button,
form .btn-enviar button {
  padding: 10px 40px;
  font-size: 18px;
  font-weight: 600;
  background-color: var(--cor-destaque);
  border: none;
  border-radius: 30px;
  cursor: pointer;
  transition: var(--transition-padrao);
  color: black;
}

.btn-contato button:hover,
form .btn-enviar button:hover {
  box-shadow: 0px 0px 8px var(--cor-destaque);
  transform: scale(1.05);
}

/* === LINKS === */
a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-padrao);
}

a:hover {
  color: var(--cor-destaque);
}

/* === ANIMAÇÕES === */
@keyframes flutuar {
  0% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(15px);
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* === CLASSES DE UTILIDADE === */
.text-center {
  text-align: center;
}

.mt-20 {
  margin-top: 20px;
}

.mb-20 {
  margin-bottom: 20px;
}

.p-4 {
  padding: 1rem;
}

.hidden {
  display: none !important;
}

/* === TRANSIÇÃO FADE === */
.fade-in,
.fade-text,
.fade-img {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 1s ease-out, transform 1s ease-out;
}

.fade-in.active,
.fade-text.active,
.fade-img.active {
  opacity: 1;
  transform: translateY(0);
}

.btn-social button {
  width: 48px;
  height: 48px;
  border-radius: 50% !important;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  font-size: 1.6rem;
  background: var(--cor-destaque);
  color: black !important;
  transition: box-shadow 0.2s, background 0.2s, color 0.2s;
  box-shadow: 0 2px 6px rgba(0,0,0,0.10);
  border: none;
  margin: 0;
}

.btn-social button:hover {
  background: var(--cor-destaque);
  box-shadow: 0 4px 16px var(--cor-destaque);
  transform: scale(1.07);
}


.btn-social {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 5px;
  margin: 8px 0;
}

.fade-header-effect {
  opacity: 0;
  transform: translateY(-50px);
  transition: opacity 0.5s, transform 0.5s cubic-bezier(.51,1.18,.77,1.15);
}
.fade-header-effect.visible {
  opacity: 1;
  transform: translateY(0);
}