@charset "UTF-8";

:root {
  --bg: #0a0a0a;
  --bg-raised: #141414;
  --fg: #f4f1ec;
  --fg-muted: #a9a49c;
  --red: #e5261f;
  --red-deep: #a3140f;
  --rule: #2a2a2a;
  --font-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --gutter: clamp(16px, 5vw, 48px);
  --measure: 36rem;
}

:root[data-theme="light"] {
  --bg: #f4f1ec;
  --bg-raised: #e9e4dc;
  --fg: #0a0a0a;
  --fg-muted: #5c5852;
  --rule: #d6d0c6;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: clamp(1rem, 0.95rem + 0.3vw, 1.125rem);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

h1, h2 {
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.02;
  margin: 0;
  text-wrap: balance;
  overflow-wrap: break-word;
}

p { margin: 0; }

::selection { background: var(--red); color: var(--fg); }

/* Hero */

.hero {
  min-height: 100svh;
  padding: calc(var(--gutter) * 1.5) var(--gutter) var(--gutter);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1.5rem;
  border-bottom: 4px solid var(--red);
}

.hero__kicker {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--red);
}

.hero__title {
  font-size: clamp(1.75rem, 9.5vw, 9rem);
  text-transform: uppercase;
}

.hero__intro {
  max-width: var(--measure);
  font-size: clamp(1.05rem, 1rem + 0.5vw, 1.35rem);
  color: var(--fg-muted);
}

.hero__cta {
  align-self: flex-start;
  margin-top: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--fg);
  border-bottom: 2px solid var(--red);
  padding-bottom: 0.2em;
}

.hero__cta::after { content: " \2193"; }

/* Core rules: 1 to 3, growing */

.core { border-bottom: 1px solid var(--rule); }

.rule--core {
  padding: clamp(3rem, 10vh, 7rem) var(--gutter);
  border-bottom: 1px solid var(--rule);
  position: relative;
}

.rule--core:last-child { border-bottom: 0; }

.rule--core .rule__num {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  color: var(--red);
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  margin-bottom: 1rem;
}

.rule--core .rule__num::before { content: "Tática "; }
:lang(en) .rule--core .rule__num::before { content: "Tactic "; }
:lang(es) .rule--core .rule__num::before { content: "Táctica "; }
:lang(fr) .rule--core .rule__num::before { content: "Tactique "; }

.rule--core .rule__title { text-transform: uppercase; }

.rule--size-1 .rule__title { font-size: clamp(1.9rem, 7vw, 4.5rem); }
.rule--size-2 .rule__title { font-size: clamp(2.3rem, 8.5vw, 6rem); }
.rule--size-3 .rule__title {
  font-size: clamp(2.7rem, 10.5vw, 8rem);
  color: var(--red);
}

.rule--core .rule__desc {
  margin-top: 1.5rem;
  max-width: var(--measure);
  font-size: clamp(1.05rem, 1rem + 0.4vw, 1.25rem);
  color: var(--fg-muted);
}

.rule--size-3 .rule__desc { color: var(--fg); }

:lang(fr) .rule--size-3 .rule__title { font-size: clamp(2.2rem, 9vw, 8rem); }

/* Rules 4 onwards */

.list { padding: clamp(2rem, 6vh, 4rem) var(--gutter); }

.rules {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 48rem;
  counter-reset: rule 3;
}

.rules .rule {
  counter-increment: rule;
  display: grid;
  grid-template-columns: 3.25rem 1fr;
  gap: 0.25rem 1rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--rule);
}

.rules .rule:last-child { border-bottom: 0; }

.rules .rule::before {
  content: counter(rule, decimal-leading-zero);
  grid-row: 1 / span 2;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.75rem;
  line-height: 1;
  color: var(--red);
  padding-top: 0.15rem;
}

.rules .rule__title {
  font-size: clamp(1.35rem, 1.2rem + 0.8vw, 1.75rem);
  line-height: 1.15;
}

.rules .rule__desc {
  color: var(--fg-muted);
  max-width: var(--measure);
}

/* Share */

.share {
  background: var(--red);
  color: var(--bg);
  padding: clamp(3rem, 8vh, 5rem) var(--gutter);
}

.share__title {
  font-size: clamp(1.75rem, 1.5rem + 2vw, 3rem);
  text-transform: uppercase;
}

.share__desc {
  margin-top: 0.75rem;
  max-width: var(--measure);
  font-weight: 600;
}

.share__actions {
  margin-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  appearance: none;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0.6rem 1.1rem;
  font: inherit;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  text-decoration: none;
  color: var(--fg);
  background: var(--bg);
  border: 2px solid var(--bg);
  border-radius: 999px;
  cursor: pointer;
}

.btn--ghost {
  background: transparent;
  color: var(--bg);
}

.btn:hover, .btn:focus-visible { background: var(--red-deep); border-color: var(--red-deep); color: var(--fg); }

.btn:focus-visible, .hero__cta:focus-visible, .lang a:focus-visible {
  outline: 3px solid var(--fg);
  outline-offset: 3px;
}

/* Footer */

.footer {
  padding: 2rem var(--gutter) calc(2rem + env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-size: 0.9rem;
  color: var(--fg-muted);
}

.lang {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.lang a { text-decoration: none; color: var(--fg-muted); padding: 0.5rem 0; }
.lang a.is-active { color: var(--fg); border-bottom: 2px solid var(--red); }

.footer__note a { color: var(--fg); }

.theme-toggle {
  appearance: none;
  background: none;
  border: 0;
  padding: 0.5rem 0;
  font: inherit;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-muted);
  cursor: pointer;
}

.theme-toggle::before {
  content: "";
  display: inline-block;
  width: 0.7em;
  height: 0.7em;
  margin-right: 0.5em;
  border-radius: 50%;
  background: var(--red);
  vertical-align: baseline;
}

.theme-toggle:hover, .theme-toggle:focus-visible { color: var(--fg); }
.theme-toggle:focus-visible { outline: 3px solid var(--fg); outline-offset: 3px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

@media (min-width: 900px) {
  .footer { flex-direction: row; justify-content: space-between; align-items: center; flex-wrap: wrap; }
  .footer__note { flex-basis: 100%; }
}

/* Print / PDF */

@media print {
  :root, :root[data-theme="light"] {
    --bg: #fff;
    --fg: #000;
    --fg-muted: #333;
    --rule: #bbb;
  }

  @page { margin: 18mm 16mm; }

  html { scroll-behavior: auto; }
  body { font-size: 11pt; line-height: 1.45; }

  .hero { min-height: auto; padding: 0 0 1.5rem; border-bottom-width: 3px; gap: 0.75rem; }
  .hero__title { font-size: 34pt; }
  .hero__intro { font-size: 12pt; }
  .hero__cta, .share__actions, .lang, .theme-toggle { display: none; }

  .core { break-after: page; }
  .rule--core { padding: 1rem 0; break-inside: avoid; }
  .rule--core .rule__num { margin-bottom: 0.5rem; }
  .rule--core.rule--size-1 .rule__title { font-size: 19pt; }
  .rule--core.rule--size-2 .rule__title { font-size: 23pt; }
  :lang(fr) .rule--core.rule--size-3 .rule__title, .rule--core.rule--size-3 .rule__title { font-size: 27pt; }
  .rule--core .rule__desc { margin-top: 0.5rem; font-size: 11pt; }

  .list { padding: 1rem 0; }
  .rules .rule { padding: 0.7rem 0; break-inside: avoid; }
  .rules .rule::before { font-size: 14pt; }
  .rules .rule__title { font-size: 13pt; }
  .rules .rule__desc { font-size: 10.5pt; }

  .share { background: none; color: var(--fg); padding: 1.5rem 0 0; border-top: 3px solid var(--red); break-inside: avoid; }
  .share__title { font-size: 16pt; }

  .share::after {
    content: "guiadoguerrilheirodigital.com.br";
    display: block;
    margin-top: 1rem;
    font-family: var(--font-display);
    font-weight: 900;
    font-size: 18pt;
    letter-spacing: -0.01em;
    color: var(--red);
  }

  .footer { padding: 1rem 0 0; }
}