/* ══════════════════════════════════════════════════════════
   CORE MÍDIAS — base compartilhada por todas as páginas
   (index.html, portfolio.html, servicos.html)

   Contém só o que é chrome do site: tokens, reset, shell da
   página, container, vidro, tipografia, botões, menu pill,
   rodapé, botão do WhatsApp e o scroll reveal.
   O CSS específico de cada página continua inline nela.
══════════════════════════════════════════════════════════ */

/* ─────────────────────────────────────────────
   TOKENS
───────────────────────────────────────────── */
:root {
  --bg:              #08091a;
  --bg-deep:         #04050f;
  --bg-card:         rgba(255,255,255,0.055);
  --bg-card-hover:   rgba(255,255,255,0.09);
  --border:          rgba(255,255,255,0.09);
  --border-bright:   rgba(255,255,255,0.17);
  --inset:           inset 0 1px 0 rgba(255,255,255,0.07);
  --text:            #ffffff;
  --text-muted:      rgba(255,255,255,0.68);
  --text-dim:        rgba(255,255,255,0.42);
  --accent:          #A78BFA;
  --accent-fill:     #6D28D9;
  --accent-soft:     rgba(167,139,250,0.18);
  --accent-glow:     rgba(167,139,250,0.32);
  --green:           #4ade80;
  --blur-nav:        blur(28px) saturate(200%);
  --blur-card:       blur(22px) saturate(170%);
  --blur-heavy:      blur(36px) saturate(180%);
  --radius-pill:     999px;
  --radius-xl:       32px;
  --radius-lg:       24px;
  --radius-md:       16px;
  --radius-sm:       12px;
  --shadow-card:     0 8px 40px rgba(0,0,0,0.48), var(--inset);
  --shadow-float:    0 24px 80px rgba(0,0,0,0.6);
  --ease-spring:     cubic-bezier(0.34,1.56,0.64,1);
  --ease-out:        cubic-bezier(0.16,1,0.3,1);
  --ease-in-out:     cubic-bezier(0.4,0,0.2,1);
}

/* ─────────────────────────────────────────────
   RESET
───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
/* overflow-x: clip (não hidden) — hidden vira scroll container e quebra
   o position:sticky do canvas do shader */
html { scroll-behavior: smooth; overflow-x: clip; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: clip;
  width: 100%;
  max-width: 100%;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; }

/* ─────────────────────────────────────────────
   PAGE SHELL — background radial lights
───────────────────────────────────────────── */
.page {
  min-height: 100vh;
  background:
    radial-gradient(ellipse 90% 55% at 18% -5%,  rgba(55,75,200,0.20), transparent),
    radial-gradient(ellipse 60% 40% at 88% 28%,  rgba(100,55,230,0.13), transparent),
    radial-gradient(ellipse 50% 35% at 50% 100%, rgba(40,60,180,0.11), transparent),
    var(--bg);
}

/* ─────────────────────────────────────────────
   LAYOUT
───────────────────────────────────────────── */
.container {
  width: min(100% - 48px, 1360px);
  margin-inline: auto;
}

/* ─────────────────────────────────────────────
   GLASS UTILITIES
───────────────────────────────────────────── */
.glass {
  background: var(--bg-card);
  backdrop-filter: var(--blur-card);
  -webkit-backdrop-filter: var(--blur-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
}

/* fallback sólido para quem reduz transparência no sistema */
@media (prefers-reduced-transparency: reduce) {
  .glass, #nav, .nav-menu {
    background: #15142a;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

/* ─────────────────────────────────────────────
   TYPOGRAPHY
───────────────────────────────────────────── */
.display {
  font-family: 'General Sans', 'Inter', sans-serif;
  font-weight: 600;
  letter-spacing: -0.022em;
  line-height: 0.98;
}

.eyebrow {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ─────────────────────────────────────────────
   BUTTONS
───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: var(--radius-pill);
  padding: 0.78rem 1.35rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    transform 0.55s var(--ease-spring),
    background 0.3s var(--ease-in-out),
    box-shadow 0.3s var(--ease-in-out),
    border-color 0.3s;
  white-space: nowrap;
  -webkit-appearance: none;
}
.btn:hover  { transform: translateY(-3px); }
.btn:active { transform: translateY(0); }

.btn-white {
  background: rgba(255,255,255,0.94);
  color: var(--bg);
  box-shadow: 0 4px 18px rgba(255,255,255,0.08);
}
.btn-white:hover { background: #fff; box-shadow: 0 6px 24px rgba(255,255,255,0.12); }

.btn-glass {
  background: var(--bg-card);
  backdrop-filter: var(--blur-card);
  -webkit-backdrop-filter: var(--blur-card);
  border-color: var(--border);
  color: var(--text);
}
.btn-glass:hover { background: var(--bg-card-hover); border-color: var(--border-bright); }

.btn-full { width: 100%; }

/* ══════════════════════════════════════════════
   NAV — FLOATING PILL
══════════════════════════════════════════════ */
#nav {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  width: fit-content;
  max-width: min(100% - 40px, 900px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 11px 10px 11px 16px;
  border-radius: var(--radius-pill);
  background: rgba(8,9,26,0.65);
  backdrop-filter: var(--blur-nav);
  -webkit-backdrop-filter: var(--blur-nav);
  border: 1px solid rgba(255,255,255,0.11);
  box-shadow: 0 4px 28px rgba(0,0,0,0.40), inset 0 1px 0 rgba(255,255,255,0.06);
  transition: opacity 0.45s var(--ease-out), transform 0.45s var(--ease-out);
}

.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.nav-logo-img {
  height: 35px; /* mesma altura do botão "Falar com a Core" */
  width: auto;
  display: block;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
}
/* hover: uma pílula de vidro cresce atrás do item, ecoando a
   própria forma do menu — nenhuma cor sozinha, sempre com forma. */
.nav-links a {
  position: relative;
  display: inline-block;
  padding: 7px 13px;
  border-radius: var(--radius-pill);
  color: var(--text-muted);
  transition: color 0.24s ease;
}
.nav-links a > span { position: relative; z-index: 1; }
.nav-links a::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: rgba(255,255,255,0.10);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.18), inset 0 0 0 1px rgba(255,255,255,0.10);
  opacity: 0;
  transform: scale(0.86);
  transition: opacity 0.24s ease, transform 0.34s var(--ease-spring);
}
.nav-links a:hover::before,
.nav-links a:focus-visible::before { opacity: 1; transform: scale(1); }
.nav-links a:hover,
.nav-links a:focus-visible { color: var(--text); }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  flex-shrink: 0;
}

.nav-cta {
  background: rgba(255,255,255,0.93);
  color: var(--bg);
  padding: 0.54rem 1rem;
  border-radius: var(--radius-pill);
  font-size: 0.74rem;
  font-weight: 600;
  transition: background 0.3s, transform 0.45s var(--ease-spring);
}
.nav-cta:hover { background: #fff; transform: translateY(-1px); }

/* Hambúrguer — só no mobile */
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--text);
  flex-shrink: 0;
  transition: background 0.3s, border-color 0.3s;
}
.nav-toggle:hover { background: rgba(255,255,255,0.12); }

.nav-toggle-bars { position: relative; width: 17px; height: 12px; }
.nav-toggle-bars span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.8px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.35s var(--ease-out), opacity 0.2s;
}
.nav-toggle-bars span:nth-child(1) { top: 0; }
.nav-toggle-bars span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.nav-toggle-bars span:nth-child(3) { bottom: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(1) { top: 50%; transform: translateY(-50%) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bars span:nth-child(3) { bottom: 50%; transform: translateY(50%) rotate(-45deg); }

/* Painel do menu mobile */
.nav-menu {
  display: none;
  position: fixed;
  top: 70px;
  left: 50%;
  transform: translateX(-50%) translateY(-10px);
  z-index: 199;
  width: min(100% - 24px, 420px);
  padding: 0.55rem;
  border-radius: var(--radius-lg);
  background: rgba(8,9,26,0.82);
  backdrop-filter: var(--blur-nav);
  -webkit-backdrop-filter: var(--blur-nav);
  border: 1px solid rgba(255,255,255,0.11);
  box-shadow: var(--shadow-float);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.32s var(--ease-out), transform 0.32s var(--ease-out), visibility 0.32s;
}
.nav-menu.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.nav-menu a {
  display: block;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: background 0.25s, color 0.25s;
}
.nav-menu a:hover, .nav-menu a:active { background: rgba(255,255,255,0.06); color: var(--text); }

/* ══════════════════════════════════════════════
   FOOTER
══════════════════════════════════════════════ */
footer {
  background: var(--bg-deep);
  border-top: 1px solid rgba(255,255,255,0.045);
  padding: 28px 0;
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: 'General Sans', 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: -0.015em;
}

.footer-logo-img {
  height: 24px;
  width: auto;
  display: block;
  object-fit: contain;
}

.footer-nav {
  display: flex;
  gap: 1.6rem;
  font-size: 0.76rem;
  color: var(--text-dim);
}
.footer-nav a { transition: color 0.3s; }
.footer-nav a:hover { color: var(--text-muted); }

.footer-copy {
  font-size: 0.74rem;
  color: var(--text-dim);
}

/* ══════════════════════════════════════════════
   WHATSAPP FLUTUANTE
══════════════════════════════════════════════ */
.wa-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 300;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(37,211,102,0.16);
  backdrop-filter: var(--blur-card);
  -webkit-backdrop-filter: var(--blur-card);
  border: 1px solid rgba(74,222,128,0.38);
  color: var(--green);
  box-shadow: 0 8px 30px rgba(0,0,0,0.45), 0 0 24px rgba(74,222,128,0.16);
  transition: transform 0.55s var(--ease-spring), box-shadow 0.3s, background 0.3s;
}
.wa-float:hover {
  transform: translateY(-4px);
  background: rgba(37,211,102,0.24);
  box-shadow: 0 12px 38px rgba(0,0,0,0.5), 0 0 34px rgba(74,222,128,0.26);
}
.wa-float::before {
  content: '';
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  border: 1px solid rgba(74,222,128,0.35);
  animation: waPulse 2.4s ease-out infinite;
  pointer-events: none;
}
@keyframes waPulse {
  0%   { transform: scale(0.92); opacity: 0.9; }
  70%  { transform: scale(1.22); opacity: 0; }
  100% { transform: scale(1.22); opacity: 0; }
}

/* ══════════════════════════════════════════════
   SCROLL REVEAL
══════════════════════════════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 0.85s var(--ease-out),
    transform 0.85s var(--ease-out);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

.d1 { transition-delay: 0.10s; }
.d2 { transition-delay: 0.22s; }
.d3 { transition-delay: 0.34s; }
.d4 { transition-delay: 0.46s; }
.d5 { transition-delay: 0.58s; }

/* ══════════════════════════════════════════════
   RESPONSIVE — apenas o que é do chrome compartilhado
   (nav, container, rodapé, botão do WhatsApp).
   O responsivo de cada seção fica na própria página.
══════════════════════════════════════════════ */
@media (max-width: 1100px) {
  .nav-links  { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-menu   { display: block; }
}

@media (max-width: 720px) {
  .container { width: min(100% - 28px, 100%); }
  #nav { width: min(100% - 24px, 100%); top: 12px; padding: 6px 6px 6px 14px; }
  .footer-row { flex-direction: column; text-align: center; gap: 1.2rem; }
  .footer-nav { justify-content: center; flex-wrap: wrap; }
  .wa-float { right: 16px; bottom: 16px; width: 52px; height: 52px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}