/* =========================================================
   Washington Costa — Portfólio
   Tokens de design + componentes reutilizáveis.
   O Tailwind (via CDN) cuida do layout; aqui ficam as cores,
   os botões, os cards e as animações.
   ========================================================= */

:root {
  --radius: 0.875rem;

  /* Cores (oklch) */
  --background: oklch(0.2 0.015 260);
  --foreground: oklch(0.96 0.005 250);
  --card: oklch(0.25 0.02 260);
  --primary: oklch(0.85 0.19 160);
  --primary-foreground: oklch(0.14 0.02 250);
  --primary-glow: oklch(0.85 0.19 160);
  --muted: oklch(0.27 0.02 260);
  --muted-foreground: oklch(0.7 0.015 250);
  --border: oklch(1 0 0 / 9%);
  --input: oklch(1 0 0 / 12%);
  --ring: oklch(0.85 0.19 160);
  --whatsapp: oklch(0.72 0.19 150);
  --whatsapp-foreground: oklch(1 0 0);

  --gradient-primary: linear-gradient(120deg, var(--primary), var(--primary-glow));
  --shadow-glow: 0 6px 20px -8px color-mix(in oklab, var(--primary) 50%, transparent);
}

/* ---------- Base ---------- */
html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}
body {
  background-color: var(--background);
  color: var(--foreground);
  font-family: "Manrope", sans-serif;
  -webkit-font-smoothing: antialiased;
}
:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 3px;
  border-radius: 6px;
}

/* Ícones (sprite SVG) */
.icon {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.icon-fill {
  fill: currentColor;
  stroke: none;
}

/* ---------- Layout ---------- */
.section {
  margin-inline: auto;
  max-width: 72rem;
  padding: 6rem 1.25rem;
}

/* ---------- Superfícies ---------- */
.surface-card {
  border-radius: 1.25rem;
  border: 1px solid var(--border);
  background: color-mix(in oklab, var(--card) 80%, transparent);
}
.surface-card.hoverable {
  transition: border-color 0.3s, transform 0.3s;
}
.surface-card.hoverable:hover {
  border-color: color-mix(in oklab, var(--primary) 40%, transparent);
}
.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.header-glass {
  background: color-mix(in oklab, var(--background) 80%, transparent);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.icon-chip {
  display: grid;
  place-items: center;
  width: 2.75rem;
  height: 2.75rem;
  flex-shrink: 0;
  border-radius: 0.75rem;
  color: var(--primary);
  background: color-mix(in oklab, var(--primary) 12%, transparent);
  border: 1px solid color-mix(in oklab, var(--primary) 25%, transparent);
}
.cta-panel {
  border-radius: 2rem;
  border: 1px solid color-mix(in oklab, var(--primary) 30%, transparent);
  background:
    radial-gradient(circle at 50% 0%, color-mix(in oklab, var(--primary) 22%, transparent), transparent 70%),
    var(--card);
}

/* ---------- Links e botões ---------- */
.nav-link {
  font-size: 0.9rem;
  color: var(--muted-foreground);
  transition: color 0.2s;
}
.nav-link:hover {
  color: var(--foreground);
}

.btn-primary,
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.9rem;
}
.btn-primary {
  padding: 0.75rem 1.4rem;
  background: var(--gradient-primary);
  color: var(--primary-foreground);
  transition: transform 0.2s, box-shadow 0.2s;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}
.btn-outline {
  padding: 0.7rem 1.3rem;
  border: 1px solid var(--input);
  color: var(--foreground);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: color-mix(in oklab, var(--primary) 8%, transparent);
}

/* Link de contato do rodapé */
.contact-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  border-radius: 0.5rem;
  padding: 0.5rem;
  color: var(--muted-foreground);
  transition: color 0.2s;
}
.contact-link:hover {
  color: var(--foreground);
}
.contact-link .contact-icon {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  transition: border-color 0.2s, color 0.2s;
}
.contact-link:hover .contact-icon {
  border-color: color-mix(in oklab, var(--primary) 60%, transparent);
  color: var(--primary);
}

/* ---------- Fundo do hero ---------- */
.hero-grid-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 60% 40%, black 10%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 60% 40%, black 10%, transparent 70%);
}

/* ---------- Botão flutuante do WhatsApp ---------- */
.whatsapp-fab {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 50;
  display: grid;
  place-items: center;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 9999px;
  background: var(--whatsapp);
  color: var(--whatsapp-foreground);
  box-shadow: 0 8px 24px -6px color-mix(in oklab, var(--whatsapp) 60%, transparent);
  transition: transform 0.25s;
  animation: pulse-ring 2.8s ease-out infinite;
}
.whatsapp-fab:hover {
  transform: scale(1.08);
}

/* ---------- Animação de entrada (scroll) ---------- */
/* Só esconde se o JS estiver ativo (classe "js" no <html>) */
.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- Cursor de digitação ---------- */
.typing-caret {
  display: inline-block;
  width: 3px;
  height: 0.9em;
  margin-left: 0.15em;
  vertical-align: -0.05em;
  background: var(--primary);
  border-radius: 2px;
}
.typing-caret.is-blinking {
  animation: caret-blink 1s step-end infinite;
}
.brand-caret {
  display: inline-block;
  margin-left: 1px;
  color: var(--primary);
  animation: caret-blink 1s step-end infinite;
}

@keyframes caret-blink {
  0%, 49% { opacity: 1; }
  50%, 100% { opacity: 0; }
}
@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 color-mix(in oklab, var(--whatsapp) 50%, transparent); }
  70%, 100% { box-shadow: 0 0 0 14px transparent; }
}

/* ---------- Acessibilidade: menos movimento ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  .js .reveal {
    opacity: 1;
    transform: none;
  }
}