/* ═══════════════════════════════════════════════
   LAYOUT — container, app shell, helpers
   ═══════════════════════════════════════════════ */

/* ── Container central ── */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
  width: 100%;
}

@media (min-width: 640px) {
  .container { padding-inline: 1.5rem; }
}
@media (min-width: 1024px) {
  .container { padding-inline: 2rem; }
}

/* ── Shell da aplicação ── */
#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

#page-content {
  flex: 1;
}

/* ── Transição de tema ── */
.theme-transition {
  transition: var(--transition-theme);
}

/* ── Grids responsivos ── */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
@media (min-width: 768px) {
  .grid-2 { grid-template-columns: repeat(2, 1fr); }
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
@media (min-width: 640px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
@media (min-width: 640px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(4, 1fr); }
}

/* ── Flex helpers ── */
.flex         { display: flex; }
.flex-col     { flex-direction: column; }
.items-center { align-items: center; }
.items-start  { align-items: flex-start; }
.justify-between { justify-content: space-between; }
.justify-center  { justify-content: center; }
.gap-2  { gap: var(--space-2); }
.gap-3  { gap: var(--space-3); }
.gap-4  { gap: var(--space-4); }
.gap-6  { gap: var(--space-6); }
.gap-8  { gap: var(--space-8); }
.flex-1 { flex: 1; }

/* ── Seções ── */
.section {
  padding-block: var(--space-16);
}
.section--lg {
  padding-block: var(--space-24);
}
.section-title {
  font-size: var(--text-section);
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}
.section-subtitle {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-weight: 600;
  margin-bottom: var(--space-2);
}
.section-accent-bar {
  width: 4rem;
  height: 4px;
  background: var(--color-accent);
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-8);
}

/* ── Utilitários de texto ── */
.text-accent   { color: var(--color-accent-text); }
.text-muted    { color: var(--color-text-muted); }
.text-sm       { font-size: var(--text-sm); }
.text-xs       { font-size: var(--text-xs); }
.font-bold     { font-weight: 700; }
.font-semibold { font-weight: 600; }
.uppercase     { text-transform: uppercase; }
.tracking-wide { letter-spacing: 0.05em; }
.tracking-widest { letter-spacing: 0.2em; }

/* ── Overflow ── */
.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.line-clamp-3 {
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ── Visibilidade responsiva ── */
.hidden-mobile {
  display: none;
}
@media (min-width: 768px) {
  .hidden-mobile { display: unset; }
}
.hidden-desktop {
  display: unset;
}
@media (min-width: 768px) {
  .hidden-desktop { display: none; }
}

/* ── Banner de aviso de desenvolvimento ── */
.dev-banner {
  background: rgba(234, 179, 8, 0.2);
  border-bottom: 1px solid rgba(234, 179, 8, 0.3);
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: #92400e;
  text-align: center;
}

[data-theme="dark"] .dev-banner {
  color: #fde047;
}

.dev-banner__icon {
  color: #d97706;
}