/* ── Shared site styles: nav, reveal, aurora, buttons ──
   Used by interior pages (queda-de-cabelo, tricologia, tricoscopia,
   queda-de-cabelo-feminina, afinamento-dos-fios, alteracoes-do-couro-cabeludo,
   sobre, contato, politica-de-privacidade). Kept separate from the home page's
   inline <style> block (which has extra hero-only rules: canvas, portrait,
   marquee) so those pages stay untouched. */

@font-face {
  font-family: "TT Norms Pro";
  src: url("../fonts/tt-norms-pro-regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "TT Norms Pro";
  src: url("../fonts/tt-norms-pro-semibold.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}

:root {
  --font-primary: "TT Norms Pro", "Inter", ui-sans-serif, system-ui, sans-serif;
  --paper: #f5f5f5;
  --ink: #0b0d14;
  --navy: #0e183c;
  --gold: #c9a24b;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.4, 0.5, 1);
}

html {
  scroll-behavior: smooth;
}
html,
body {
  font-family: var(--font-primary);
}
* {
  font-family: inherit;
}
body {
  background: var(--paper);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
section[id] {
  scroll-margin-top: 5rem;
}
::selection {
  background: var(--gold);
  color: #fff;
}

::-webkit-scrollbar {
  width: 9px;
}
::-webkit-scrollbar-track {
  background: #ececec;
}
::-webkit-scrollbar-thumb {
  background: #c8ccd6;
  border-radius: 9px;
  border: 2px solid #ececec;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--gold);
}

.font-serif-i {
  font-family: "Fraunces", Georgia, serif;
  font-style: italic;
  font-optical-sizing: auto;
}

/* ── Grain overlay ── */
.grain {
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  opacity: 0.05;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ── Navbar ── */
.site-nav {
  transition:
    background 0.4s var(--ease),
    backdrop-filter 0.4s var(--ease),
    border-color 0.4s var(--ease),
    box-shadow 0.4s var(--ease),
    padding 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-nav .nav-link,
.site-nav .nav-logo {
  color: #fff;
}
.site-nav .nav-link {
  color: rgba(255, 255, 255, 0.72);
}
.site-nav .nav-cta {
  background: #fff;
  color: var(--ink);
}
.site-nav .nav-toggle {
  color: #fff;
}
.site-nav.scrolled {
  background: rgba(245, 245, 245, 0.72);
  backdrop-filter: blur(20px) saturate(160%);
  -webkit-backdrop-filter: blur(20px) saturate(160%);
  border-bottom-color: rgba(11, 13, 20, 0.08);
  box-shadow: 0 10px 40px -20px rgba(11, 13, 20, 0.25);
}
.site-nav.scrolled .nav-logo {
  color: var(--ink);
}
.site-nav.scrolled .nav-link {
  color: var(--muted, #5b5f70);
}
.site-nav.scrolled .nav-link:hover {
  color: var(--ink);
}
.site-nav.scrolled .nav-cta {
  background: var(--ink);
  color: #fff;
}
.site-nav.scrolled .nav-toggle {
  color: var(--ink);
}
.nav-link {
  position: relative;
  transition: color 0.25s var(--ease);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  height: 1px;
  width: 0;
  background: var(--gold);
  transition: width 0.3s var(--ease);
}
.nav-link:hover::after {
  width: 100%;
}
.logo-light,
.logo-dark {
  transition: opacity 0.4s var(--ease);
}
.logo-dark {
  opacity: 0;
}
.site-nav.scrolled .logo-light {
  opacity: 0;
}
.site-nav.scrolled .logo-dark {
  opacity: 1;
}

/* ── Page hero band (interior pages: no canvas/portrait, just aurora) ── */
.page-hero {
  position: relative;
  overflow: hidden;
  background: var(--navy);
}
.aurora {
  position: absolute;
  border-radius: 9999px;
  pointer-events: none;
  filter: blur(90px);
}
.aurora-a {
  width: 40rem;
  height: 40rem;
  right: -12rem;
  top: -18rem;
  background: radial-gradient(circle, rgba(201, 162, 75, 0.28), transparent 66%);
}
.aurora-b {
  width: 36rem;
  height: 36rem;
  left: -14rem;
  bottom: -18rem;
  background: radial-gradient(circle, rgba(52, 80, 170, 0.42), transparent 66%);
}
@keyframes scan {
  0% {
    top: 0;
    opacity: 0;
  }
  12% {
    opacity: 1;
  }
  88% {
    opacity: 1;
  }
  100% {
    top: 100%;
    opacity: 0;
  }
}
.scan-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  top: 0;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(201, 162, 75, 0.85) 45%,
    rgba(227, 200, 136, 0.95) 50%,
    rgba(201, 162, 75, 0.85) 55%,
    transparent
  );
  box-shadow: 0 0 22px 2px rgba(201, 162, 75, 0.35);
  animation: scan 16s linear infinite;
  will-change: top;
}

/* ── Scroll reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 0.9s var(--ease),
    transform 0.9s var(--ease);
  transition-delay: var(--d, 0s);
  will-change: opacity, transform;
}
.reveal.in {
  opacity: 1;
  transform: none;
}

/* Hover lift */
.lift {
  transition:
    transform 0.5s var(--ease),
    box-shadow 0.5s var(--ease);
}
.lift:hover {
  transform: translateY(-6px);
  box-shadow: 0 40px 80px -40px rgba(11, 13, 20, 0.35);
}

.hairline {
  height: 1px;
  background: linear-gradient(90deg, rgba(201, 162, 75, 0.6), rgba(201, 162, 75, 0));
}

/* Magnetic wrapper */
.mag {
  display: inline-block;
  will-change: transform;
  transition: transform 0.35s var(--ease-spring);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .scan-line {
    animation: none !important;
  }
  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
  .mag {
    transition: none;
  }
}