/* =========================================================
   RATIO — theme.css
   Sistema tipográfico, escala de textos e temas visuais.
   Depende de: base.css (tokens)
   ========================================================= */

/* ---------------------------------------------------------
   Escala tipográfica aplicada
   --------------------------------------------------------- */

/* Headings serifados */
h1 {
  font-size: var(--text-5xl);
  font-weight: var(--weight-light);
  letter-spacing: -0.02em;
  line-height: 1.1;
}

h2 {
  font-size: var(--text-3xl);
  font-weight: var(--weight-semi);
  letter-spacing: -0.01em;
  line-height: 1.2;
}

h3 {
  font-size: var(--text-2xl);
  font-weight: var(--weight-medium);
  letter-spacing: -0.005em;
  line-height: 1.25;
}

h4 {
  font-size: var(--text-xl);
  font-weight: var(--weight-semi);
  line-height: 1.3;
}

h5 {
  font-size: var(--text-lg);
  font-weight: var(--weight-semi);
  line-height: 1.4;
}

h6 {
  font-size: var(--text-base);
  font-weight: var(--weight-semi);
  line-height: 1.5;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Parágrafo padrão */
p {
  font-size: var(--text-md);
  line-height: 1.75;
  color: var(--color-text-secondary);
}

/* Lead (parágrafo introdutório) */
.text-lead {
  font-size: var(--text-xl);
  font-family: var(--font-serif);
  font-weight: var(--weight-light);
  line-height: 1.55;
  color: var(--color-text-primary);
  font-style: italic;
}

/* Eyebrow (rótulo acima de título) */
.eyebrow {
  display: block;
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: var(--weight-semi);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-brand-bronze);
  margin-bottom: var(--space-3);
}

/* Destaques */
.text-highlight {
  color: var(--color-brand-bronze);
}

.text-gold {
  color: var(--color-brand-gold);
}

/* Texto muted */
.text-muted {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* Texto pequeno */
.text-small {
  font-size: var(--text-sm);
  line-height: 1.6;
}

/* ---------------------------------------------------------
   Separadores temáticos
   --------------------------------------------------------- */
.rule {
  display: block;
  width: 3rem;
  height: 1px;
  background: var(--color-brand-bronze);
  margin: var(--space-5) 0;
}

.rule--center {
  margin-left: auto;
  margin-right: auto;
}

.rule--long {
  width: 100%;
  background: var(--color-border);
}

.rule--thin {
  height: 0.5px;
}

/* ---------------------------------------------------------
   Citação/destaque institucional
   --------------------------------------------------------- */
.pullquote {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  font-weight: var(--weight-light);
  font-style: italic;
  line-height: 1.45;
  color: var(--color-text-primary);
  border-left: 2px solid var(--color-brand-bronze);
  padding-left: var(--space-6);
  margin: var(--space-8) 0;
}

/* ---------------------------------------------------------
   Rótulo de área/disciplina
   --------------------------------------------------------- */
.discipline-tag {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: var(--weight-semi);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-brand-bronze);
  background: rgba(138, 106, 59, 0.1);
  border: 1px solid rgba(138, 106, 59, 0.25);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
}

/* ---------------------------------------------------------
   Botões
   --------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--weight-semi);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  line-height: 1;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-base),
              color var(--transition-base),
              border-color var(--transition-base),
              box-shadow var(--transition-base);
  cursor: pointer;
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-brand-gold);
  outline-offset: 3px;
}

/* Primário */
.btn--primary {
  background: var(--color-brand-navy);
  color: var(--color-text-invert);
  border: 1px solid var(--color-brand-navy);
}

.btn--primary:hover {
  background: #0F1621;
  border-color: #0F1621;
  box-shadow: 0 4px 16px rgba(26, 34, 48, 0.2);
}

/* Secundário (outline) */
.btn--secondary {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn--secondary:hover {
  border-color: var(--color-brand-navy);
  background: rgba(26, 34, 48, 0.04);
}

/* Bronze */
.btn--bronze {
  background: transparent;
  color: var(--color-brand-bronze);
  border: 1px solid var(--color-brand-bronze);
}

.btn--bronze:hover {
  background: var(--color-brand-bronze);
  color: #FFFFFF;
}

/* Inline link */
.btn--text {
  padding: 0;
  background: none;
  border: none;
  color: var(--color-brand-bronze);
  font-size: var(--text-sm);
  font-weight: var(--weight-semi);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  gap: var(--space-2);
}

.btn--text:hover {
  color: var(--color-brand-gold);
}

.btn--text .arrow {
  display: inline-block;
  transition: transform var(--transition-base);
}

.btn--text:hover .arrow {
  transform: translateX(4px);
}

/* ---------------------------------------------------------
   Fundo de seção alternado
   --------------------------------------------------------- */
.section--light {
  background-color: var(--color-bg-primary);
}

.section--muted {
  background-color: var(--color-bg-secondary);
}

.section--invert {
  background-color: var(--color-bg-invert);
  color: var(--color-text-invert);
}

.section--invert h2,
.section--invert h3,
.section--invert h4 {
  color: var(--color-text-invert);
}

.section--invert p {
  color: rgba(243, 235, 221, 0.75);
}

.section--invert .eyebrow {
  color: var(--color-brand-gold);
}

.section--invert .rule {
  background: var(--color-brand-gold);
}