/* ==========================================================================
   FC — Base: reset, tipografia, utilitários
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100vh;
}

img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; padding: 0; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; padding: 0; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-heading);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-tight);
}

p { line-height: var(--lh-relaxed); }

::selection { background: var(--fc-yellow); color: var(--black); }

:focus-visible {
  outline: 2px solid var(--fc-yellow-dark);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Scrollbar custom */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--gray-100); }
::-webkit-scrollbar-thumb { background: var(--gray-400); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--gray-600); }

/* ==========================================================================
   UTILITIES
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-lg);
  margin-inline: auto;
  padding-inline: var(--section-px);
}
.container--wide { max-width: var(--container-xl); }
.container--narrow { max-width: var(--container-md); }
.container--tight { max-width: 880px; }

.section { padding-block: var(--section-py); }
.section--tight { padding-block: clamp(2rem, 4vw, 4rem); }
.section--dark { background: var(--black); color: var(--color-text-inv); }
.section--graphite { background: var(--graphite); color: var(--color-text-inv); }
.section--yellow { background: var(--fc-yellow); color: var(--black); }
.section--gray { background: var(--gray-50); }

/* Visually hidden but readable by screen-readers */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* Text helpers */
.text-center { text-align: center; }
.text-balance { text-wrap: balance; }
.text-pretty { text-wrap: pretty; }
.text-muted { color: var(--color-text-muted); }
.text-uppercase { text-transform: uppercase; letter-spacing: var(--tracking-wider); }

/* Eyebrow label */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  color: var(--gray-600);
  margin-bottom: var(--sp-4);
}
.eyebrow::before {
  content: '';
  width: 28px;
  height: 2px;
  background: currentColor;
}
.eyebrow--on-dark { color: var(--fc-yellow); }
.eyebrow--center { justify-content: center; }

/* Section header */
.section-head { text-align: center; margin-bottom: clamp(2rem, 4vw, 3.5rem); }
.section-head .eyebrow { justify-content: center; }
.section-head h2 { font-size: var(--fs-h2); margin: 0; }
.section-head p { margin-top: var(--sp-4); color: var(--color-text-muted); max-width: 640px; margin-inline: auto; }
.section-head--left { text-align: left; }
.section-head--left .eyebrow { justify-content: flex-start; }
.section-head--left p { margin-inline: 0; }

/* Animations on scroll */
.reveal {
  opacity: 0;
  transform: translate3d(0, 40px, 0);
  transition:
    opacity var(--t-slower) var(--ease-out),
    transform var(--t-slower) var(--ease-out);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}
.reveal--left { transform: translate3d(-40px, 0, 0); }
.reveal--right { transform: translate3d(40px, 0, 0); }
.reveal--scale { transform: scale(0.96); }
.reveal--delay-1 { transition-delay: 80ms; }
.reveal--delay-2 { transition-delay: 160ms; }
.reveal--delay-3 { transition-delay: 240ms; }
.reveal--delay-4 { transition-delay: 320ms; }
.reveal--delay-5 { transition-delay: 400ms; }
.reveal--delay-6 { transition-delay: 480ms; }