/* ============================================
   isnull_ — o sistema que transforma sonhos em dados
   identidade visual mínima, viva e contemplativa
   ============================================ */

/* --- VARIÁVEIS DE TEMA --- */
:root {
  --bg: #0E0E0E;           /* vazio: base escura e profunda */
  --fg: #FFFFFF;           /* consciência: texto claro */
  --accent: #00F5A0;       /* Verde lésbica */
  --accent-deep: #6B00FF;  /* dimensão filosófica */
  --muted: #A0A0A0;        /* meio-termo: reflexão */
  --surface: #151515;      /* planos intermediários */
  --radius: 10px;
}

/* --- RESET BÁSICO --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Inter', sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

/* --- CABEÇALHO --- */
header {
  text-align: center;
  padding: 2rem 1rem;
  font-family: 'JetBrains Mono', monospace;
}

h1 {
  font-weight: 500;
  letter-spacing: 0.05em;
}

.cursor {
  display: inline-block;
  width: 8px;
  background: var(--accent);
  animation: blink 1s steps(2, start) infinite;
}

@keyframes blink {
  50% { background: transparent; }
}

/* --- SEÇÕES GERAIS --- */
section {
  max-width: 800px;
  margin: 5rem auto;
  padding: 0 1.5rem;
}

h2, h3 {
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 0.8rem;
}

p {
  color: var(--fg);
  font-size: 1.1rem;
  opacity: 0.9;
}

/* --- SEÇÕES ESPECÍFICAS --- */
.hero {
  text-align: center;
  margin-top: 4rem;
}

#manifesto {
  background: var(--surface);
  padding: 3rem 2rem;
  border-left: 3px solid var(--accent-deep);
  border-radius: var(--radius);
}

#manifesto h3 {
  color: var(--accent-deep);
}

#enviar {
  margin-top: 4rem;
}

/* --- FORMULÁRIOS --- */
/* --- FORMULÁRIOS --- */
form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.5rem;
}

input, textarea, select {
  background: #111;
  color: var(--fg);
  border: 1px solid #222;
  border-radius: var(--radius);
  padding: 0.9rem;
  font-size: 1rem;
  font-family: 'JetBrains Mono', monospace;
  transition: border 0.2s ease, box-shadow 0.2s ease;
  appearance: none; /* remove o estilo padrão do select */
  -webkit-appearance: none;
  -moz-appearance: none;
}

/* Ícone de seta personalizado pro select */
select {
  background-image: linear-gradient(to bottom, transparent 50%, var(--accent) 50%);
  background-repeat: no-repeat;
  background-size: 1rem 1rem;
  background-position: right 1rem center;
  padding-right: 2.5rem; /* espaço pra seta */
  cursor: pointer;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 8px rgba(0, 245, 160, 0.2);
}

select:hover {
  border-color: var(--accent);
}

button {
  border: 1px solid var(--accent);
  color: var(--accent);
  background: transparent;
  border-radius: var(--radius);
  padding: 0.8rem 1.2rem;
  font-size: 1rem;
  cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  transition: all 0.2s ease;
}

button:hover {
  background: var(--accent);
  color: var(--bg);
  box-shadow: 0 0 10px var(--accent);
}


/* --- RODAPÉ --- */
footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  margin: 4rem 0 2rem;
}

/* --- MENU LATERAL --- */
#menu {
  position: fixed;
  top: 20px;
  right: 25px;
  z-index: 999;
}

#menu-trigger {
  font-size: 1.3rem;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.3s ease;
}

#menu-trigger:hover {
  color: var(--accent);
}

#menu-content {
  position: absolute;
  top: 35px;
  right: 0;
  background: rgba(20, 20, 20, 0.95);
  border: 1px solid rgba(0, 209, 255, 0.15);
  border-radius: var(--radius);
  padding: 0.6rem 1rem;
  display: none;
  flex-direction: column;
  gap: 0.5rem;
  backdrop-filter: blur(6px);
  min-width: 150px;
  text-align: right;
}

#menu-content.active {
  display: flex;
  animation: fadeIn 0.3s ease;
}

#menu-content a {
  color: var(--muted);
  text-decoration: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  transition: color 0.3s ease;
}

#menu-content a:hover {
  color: var(--accent);
}

/* --- PRESENÇA VIVA --- */
#presence {
  position: fixed;
  bottom: 20px;
  left: 25px;
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(20, 20, 20, 0.7);
  border: 1px solid rgba(0, 209, 255, 0.2);
  border-radius: 20px;
  padding: 8px 14px;
  backdrop-filter: blur(6px);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--muted);
  transition: all 0.4s ease;
  z-index: 998;
}

#presence:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(20, 20, 20, 0.9);
}

#presence .dot {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite ease-in-out;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.4); opacity: 1; }
}

/* --- ANIMAÇÕES GERAIS --- */
.fade-in {
  opacity: 0;
  animation: fadeIn 1.2s ease forwards;
}

.fade-in-delay {
  opacity: 0;
  animation: fadeIn 1.2s ease 0.5s forwards;
}

.hidden {
  opacity: 0;
  transition: opacity 1s ease;
}

.hidden.fade-in {
  opacity: 1;
}

.process-line {
  color: var(--muted);
  margin-top: 2rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  animation: blinkProcess 1s infinite alternate;
}

.process-line.done {
  color: var(--accent);
  animation: none;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes blinkProcess {
  from { opacity: 0.4; }
  to { opacity: 1; }
}

/* --- RESPONSIVIDADE --- */
@media (max-width: 600px) {
  section {
    margin: 3rem auto;
    padding: 0 1rem;
  }

  #presence {
    left: 50%;
    transform: translateX(-50%);
    bottom: 15px;
  }

  #menu {
    right: 15px;
  }
}