/* RN Distribuidora — base do Design System v1 (docs/RN_Design_System_v1.md).
   Tokens e componentes compartilhados por todas as páginas. */

:root {
  /* Marca */
  --rn-charcoal: #173B4B;
  --rn-auburn: #963832;
  --rn-flash-white: #EDEDED;
  --rn-battleship: #929079;
  --rn-onyx: #3C3C3B;

  /* Superfícies */
  --rn-bg: #F7F7F5;
  --rn-surface: #FFFFFF;
  --rn-surface-soft: #EDEDED;
  --rn-dark: #173B4B;

  /* Texto */
  --rn-text: #3C3C3B;
  --rn-text-muted: #6F706E;
  --rn-text-on-dark: #FFFFFF;
  --rn-text-on-dark-muted: rgba(255, 255, 255, .74);
  --rn-text-accent: #963832;

  /* Bordas */
  --rn-border: rgba(23, 59, 75, .14);
  --rn-border-strong: rgba(23, 59, 75, .28);
  --rn-border-on-dark: rgba(255, 255, 255, .16);

  /* Ação */
  --rn-primary: #173B4B;
  --rn-primary-hover: #102E3B;
  --rn-accent: #963832;
  --rn-accent-hover: #7E2E29;

  /* Tipografia: Aguda Unicase e Avenir são as oficiais. Roboto Condensed e Inter são
     contingência (DS §7.3) — vêm antes das fontes de sistema para o visual ser igual em todo aparelho. */
  --font-display: "Aguda Unicase", "Roboto Condensed", "Arial Narrow", sans-serif;
  --font-body: "Avenir", "Avenir Next", "Inter", "Helvetica Neue", Arial, sans-serif;

  --text-xs: clamp(.75rem, .72rem + .1vw, .82rem);
  --text-sm: clamp(.875rem, .84rem + .12vw, .95rem);
  --text-base: clamp(1rem, .96rem + .15vw, 1.08rem);
  --text-lg: clamp(1.125rem, 1.04rem + .3vw, 1.3rem);
  --text-xl: clamp(1.35rem, 1.15rem + .7vw, 1.75rem);
  --text-2xl: clamp(1.7rem, 1.35rem + 1.2vw, 2.4rem);
  --text-3xl: clamp(2.1rem, 1.55rem + 2vw, 3.4rem);
  --text-hero: clamp(2.65rem, 1.8rem + 3.2vw, 5.2rem);

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 40px;
  --space-8: 48px;
  --space-9: 64px;
  --space-10: 80px;
  --space-11: 96px;
  --space-12: 120px;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 999px;

  --shadow-sm: 0 4px 16px rgba(23, 59, 75, .06);
  --shadow-md: 0 12px 36px rgba(23, 59, 75, .10);

  --ease: cubic-bezier(.2, .8, .2, 1);
  --duration-fast: 160ms;
  --duration: 240ms;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--rn-bg);
  color: var(--rn-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: inherit; }
h1, h2, h3, p, figure { margin: 0; }

:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 3px;
}

.rn-display {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .01em;
  line-height: 1.02;
  text-wrap: balance;
}

.rn-eyebrow {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--rn-auburn);
}

/* Botões (DS §17) */
.rn-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 52px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 10px;
  font: 700 var(--text-base)/1.2 var(--font-body);
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--duration) var(--ease), border-color var(--duration) var(--ease);
}
.rn-btn svg { width: 20px; height: 20px; flex: none; }
.rn-btn--block { width: 100%; }

.rn-btn--primary { background: var(--rn-primary); border-color: var(--rn-primary); color: #fff; }
.rn-btn--primary:hover { background: var(--rn-primary-hover); border-color: var(--rn-primary-hover); }

.rn-btn--accent { background: var(--rn-accent); border-color: var(--rn-accent); color: #fff; }
.rn-btn--accent:hover { background: var(--rn-accent-hover); border-color: var(--rn-accent-hover); }

.rn-btn--secondary { background: transparent; border-color: var(--rn-border-strong); color: var(--rn-charcoal); }
.rn-btn--secondary:hover { border-color: var(--rn-charcoal); }

.rn-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0ms !important;
    animation-duration: 0ms !important;
    scroll-behavior: auto !important;
  }
}