/* =========================================================
   Sua Própria Trilha · Design tokens & custom utilities
   Compatible with Tailwind v3 Play CDN
   ========================================================= */
:root {
  --background: oklch(0.18 0.018 230);   /* #0A1218 navy-black */
  --foreground: oklch(0.92 0.022 85);    /* #EDE6D6 warm cream */
  --card:       oklch(0.21 0.018 230);
  --muted:      oklch(0.24 0.015 230);
  --muted-foreground: oklch(0.66 0.015 80);
  --amber:      oklch(0.82 0.13 78);     /* #E8B96B highlight gold */
  --moss:       oklch(0.55 0.06 155);    /* moss green */
  --rust:       oklch(0.55 0.10 50);
  --border:     oklch(0.92 0.022 85 / 9%);
  --ink-mute:   oklch(0.66 0.015 80);

  --font-display: "Fraunces", "Cormorant Garamond", Georgia, serif;
  --font-sans:    "Manrope", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-script:  "Caveat", cursive;
}

html { scroll-behavior: smooth; color-scheme: dark; }
html, body {
  background-color: var(--background);
  color: var(--foreground);
}
body {
  font-family: var(--font-sans);
  font-weight: 300;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  letter-spacing: 0.005em;
  margin: 0;
}
::selection { background: var(--moss); color: var(--foreground); }

/* Global film-grain overlay */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 60;
  opacity: 0.06;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 .55 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ===== Custom utility classes ===== */
.font-display {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.025em;
  font-optical-sizing: auto;
}
.font-script { font-family: var(--font-script); }
.tracking-mark { letter-spacing: 0.32em; text-transform: uppercase; }

.eyebrow {
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--ink-mute);
  display: inline-flex;
  align-items: center;
  gap: 14px;
}

.container-trail {
  width: 100%;
  margin-inline: auto;
  padding-inline: 1.25rem;
  max-width: 84rem;
}
@media (min-width: 768px) {
  .container-trail { padding-inline: 3.5rem; }
}

.grain-overlay {
  pointer-events: none;
  position: absolute;
  inset: 0;
  opacity: 0.10;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.6 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ===== Animations ===== */
@keyframes ken-burns {
  0%   { transform: scale(1.05) translate3d(0,0,0); }
  100% { transform: scale(1.18) translate3d(-1.5%, -1%, 0); }
}
@keyframes reveal-up {
  from { opacity: 0; transform: translateY(28px); filter: blur(6px); }
  to   { opacity: 1; transform: translateY(0); filter: blur(0); }
}
.animate-ken-burns { animation: ken-burns 22s ease-in-out infinite alternate; }
.animate-reveal { animation: reveal-up 1.4s cubic-bezier(.16,1,.3,1) both; }

/* ===== Buttons ===== */
.btn-amber {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 16px 28px;
  background: var(--amber);
  color: var(--background);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  transition: all 400ms cubic-bezier(.2,.7,.2,1);
}
.btn-amber:hover { background: var(--foreground); }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  padding: 16px 28px;
  border: 1px solid var(--border);
  color: var(--foreground);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  transition: all 400ms cubic-bezier(.2,.7,.2,1);
}
.btn-ghost:hover { border-color: var(--amber); color: var(--amber); }