/* ════════════════════════════════════════
   VARIÁVEIS GLOBAIS — Kenji Tanaka
   Paleta Tokyo Minimalista
════════════════════════════════════════ */

:root {

  /* ── CORES PRINCIPAIS ── */
  --red:          #C8102E;        /* vermelho japonês */
  --red-dim:      rgba(200,16,46,0.15);
  --red-faint:    rgba(200,16,46,0.06);
  --black:        #0D0D0D;        /* preto profundo */
  --black-soft:   #141414;        /* superfície */
  --black-card:   #1A1A1A;        /* cartão */
  --black-hover:  #222222;        /* hover */
  --white:        #F5F0E8;        /* branco papel */
  --white-dim:    rgba(245,240,232,0.7);
  --white-faint:  rgba(245,240,232,0.08);
  --gold:         #C4A882;        /* dourado subtil */
  --gold-dim:     rgba(196,168,130,0.25);
  --grey:         #8A8A8A;        /* cinzento névoa */
  --grey-dark:    #3A3A3A;        /* cinzento escuro */
  --grey-faint:   rgba(138,138,138,0.1);

  /* ── BORDAS ── */
  --border:       rgba(255,255,255,0.07);
  --border-red:   rgba(200,16,46,0.3);
  --border-gold:  rgba(196,168,130,0.2);

  /* ── TIPOGRAFIA ── */
  --font-sans:    'DM Sans', sans-serif;
  --font-serif:   'Cormorant Garamond', serif;
  --font-mono:    'DM Mono', monospace;

  /* ── TAMANHOS DE FONTE ── */
  --text-xs:      0.65rem;
  --text-sm:      0.75rem;
  --text-base:    0.875rem;
  --text-md:      1rem;
  --text-lg:      1.25rem;
  --text-xl:      1.75rem;
  --text-2xl:     2.5rem;
  --text-3xl:     3.5rem;

  /* ── ESPAÇAMENTOS ── */
  --space-xs:     0.35rem;
  --space-sm:     0.65rem;
  --space-md:     1rem;
  --space-lg:     1.5rem;
  --space-xl:     2.5rem;
  --space-2xl:    4rem;

  /* ── TRANSIÇÕES ── */
  --transition:   all 0.25s ease;
  --transition-slow: all 0.5s ease;

  /* ── RAIOS ── */
  --radius-sm:    2px;
  --radius-md:    4px;
  --radius-full:  9999px;

  /* ── SOMBRAS ── */
  --shadow-red:   0 0 40px rgba(200,16,46,0.12);
  --shadow-card:  0 8px 32px rgba(0,0,0,0.4);
}

/* ── RESET BASE ── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  background: var(--black);
  color: var(--white);
  font-family: var(--font-sans);
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

img {
  display: block;
  max-width: 100%;
}

/* ── UTILITÁRIOS ── */
.text-red   { color: var(--red); }
.text-gold  { color: var(--gold); }
.text-grey  { color: var(--grey); }
.text-white { color: var(--white); }

.uppercase  { text-transform: uppercase; }
.italic     { font-style: italic; }
.serif      { font-family: var(--font-serif); }

.border-top    { border-top: 0.5px solid var(--border); }
.border-bottom { border-bottom: 0.5px solid var(--border); }