/* ==========================================================================
   Augustus Consultoria — Base
   Tokens, reset, typography, layout primitives, utilities
   ========================================================================== */

:root {
  /* Palette */
  --c-black: #050505;
  --c-black-pure: #000000;
  --c-graphite: #17191C;
  --c-charcoal: #25282D;
  --c-gold: #C8A45B;
  --c-gold-light: #E5C77F;
  --c-offwhite: #F3F0E8;
  --c-white: #FFFFFF;
  --c-text-gray: #B4B4B4;

  /* Semantic */
  --bg-page: var(--c-white);
  --bg-alt: var(--c-offwhite);
  --bg-dark: var(--c-black);
  --bg-dark-alt: var(--c-graphite);
  --text-body: var(--c-charcoal);
  --text-muted: #5B5F66;
  --text-on-dark: var(--c-offwhite);
  --text-on-dark-muted: var(--c-text-gray);
  --line-gold: var(--c-gold);
  --focus-ring: #6E9BD1;

  /* Typography */
  --font-serif: Georgia, 'Iowan Old Style', 'Palatino Linotype', Palatino, 'Book Antiqua', serif;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;

  /* Spacing scale */
  --space-2xs: 0.4rem;
  --space-xs: 0.8rem;
  --space-sm: 1.2rem;
  --space-md: 2rem;
  --space-lg: 3.2rem;
  --space-xl: 5.6rem;
  --space-2xl: 8.8rem;

  /* Layout */
  --container-w: 1240px;
  --container-narrow: 800px;
  --radius-sm: 2px;
  --radius-md: 4px;

  /* Motion */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 180ms;
  --dur-med: 320ms;
  --dur-slow: 640ms;

  /* Header — fonte única desta variável (não redeclarar em outros arquivos) */
  --header-h: 76px;
}
@media (min-width: 1920px) {
  :root { --header-h: 84px; }
}

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

* { margin: 0; }

html {
  font-size: 100%;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text-body);
  background: var(--bg-page);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

button { cursor: pointer; background: none; border: none; }

a {
  color: inherit;
  text-decoration: none;
}

ul, ol { list-style: none; padding: 0; }

table { border-collapse: collapse; }

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

/* --------------------------------------------------------------------------
   Focus & accessibility
   -------------------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: -100%;
  left: var(--space-md);
  z-index: 999;
  background: var(--c-black);
  color: var(--c-offwhite);
  padding: 0.9rem 1.6rem;
  border: 1px solid var(--c-gold);
  border-radius: var(--radius-sm);
  transition: top var(--dur-fast) var(--ease);
}

.skip-link:focus {
  top: var(--space-md);
}

/* --------------------------------------------------------------------------
   Typography
   -------------------------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.15;
  color: var(--c-black);
  letter-spacing: 0.01em;
}

h1 { font-size: clamp(2.4rem, 1.7rem + 3vw, 4.4rem); }
h2 { font-size: clamp(1.9rem, 1.5rem + 1.8vw, 3rem); }
h3 { font-size: clamp(1.4rem, 1.2rem + 0.8vw, 1.9rem); }
h4 { font-size: 1.2rem; }

p { max-width: 62ch; }
p.lead {
  font-size: 1.15rem;
  color: var(--text-muted);
}

.on-dark h1, .on-dark h2, .on-dark h3, .on-dark h4 { color: var(--c-white); }
.on-dark p, .on-dark { color: var(--text-on-dark-muted); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.eyebrow::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 1px;
  background: var(--c-gold);
}

.section-head {
  max-width: var(--container-narrow);
  margin-bottom: var(--space-lg);
}

.section-head h2 { margin-top: var(--space-sm); }

.section-head p.lead { margin-top: var(--space-sm); }

.rule-gold {
  height: 1px;
  width: 64px;
  background: linear-gradient(90deg, var(--c-gold), var(--c-gold-light));
  border: 0;
}

/* --------------------------------------------------------------------------
   Layout primitives
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-w);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

.container-narrow {
  width: 100%;
  max-width: var(--container-narrow);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

section, .section {
  padding-block: var(--space-xl);
}

.section--tight { padding-block: var(--space-lg); }

.bg-alt { background: var(--bg-alt); }
.bg-dark { background: var(--bg-dark); color: var(--text-on-dark); }
.bg-dark-alt { background: var(--bg-dark-alt); color: var(--text-on-dark); }
.bg-white { background: var(--c-white); }

.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
.grid-4 { grid-template-columns: 1fr; }

@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

.split {
  display: grid;
  gap: var(--space-lg);
  align-items: center;
}

@media (min-width: 1024px) {
  .split {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
  }
  .split--reverse .split__media { order: 2; }
  .split--reverse .split__content { order: 1; }
}

.split__media img {
  width: 100%;
  border-radius: var(--radius-md);
}

.text-center { text-align: center; }
.mx-auto { margin-inline: auto; }

/* Frame around portrait photography */
.frame {
  position: relative;
  isolation: isolate;
}

.frame::after {
  content: '';
  position: absolute;
  inset: 18px;
  border: 1px solid var(--c-gold);
  z-index: -1;
  pointer-events: none;
}

@media (min-width: 768px) {
  .frame::after { inset: 26px; }
}