/* Página "A máquina por baixo" ---------------------------------------------
   Reaproveita a base visual de styles.css e acrescenta só o que é próprio
   desta página: cabeçalho, seleção de blocos e os cartões de conteúdo. */

:root {
  --machine-shell: 1320px;
}

html {
  scroll-padding-top: 88px;
}

body.machine-page {
  min-width: 320px;
}

.machine-shell {
  width: min(calc(100% - 64px), var(--machine-shell));
  margin-inline: auto;
}

/* Cabeçalho --------------------------------------------------------------- */

.machine-header {
  position: sticky;
  z-index: 60;
  top: 0;
  border-bottom: 1px solid var(--line);
  background: rgba(250, 248, 243, 0.92);
  backdrop-filter: blur(18px);
}

.machine-header-inner {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.machine-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
  text-decoration: none;
}

.machine-brand > span:first-child {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: #f6faf8;
  background: var(--green);
  border-radius: 9px 9px 3px 9px;
  font-family: Georgia, serif;
  font-size: 1.08rem;
  font-weight: 800;
}

.machine-brand strong {
  display: block;
  font-size: 1rem;
  line-height: 1.1;
}

.machine-brand small {
  display: block;
  margin-top: 2px;
  color: var(--ink-soft);
  font-size: 0.72rem;
}

.machine-header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

.machine-guide-link {
  padding: 9px 14px;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: 9px;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.machine-guide-link:hover {
  color: var(--green-dark);
  border-color: var(--green);
}

/* Hero -------------------------------------------------------------------- */

.machine-hero {
  padding: 56px 0 34px;
}

.machine-hero h1 {
  max-width: 20ch;
  margin: 10px 0 16px;
  font-size: clamp(2.1rem, 5vw, 3.3rem);
  line-height: 1.06;
}

.machine-lead {
  max-width: 66ch;
  color: var(--ink-soft);
  font-size: 1.03rem;
  line-height: 1.6;
}

.machine-summary {
  display: flex;
  margin: 26px 0 0;
  flex-wrap: wrap;
  gap: 30px;
}

.machine-summary div {
  min-width: 104px;
}

.machine-summary dt {
  color: var(--green-dark);
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1;
}

.machine-summary dd {
  margin: 5px 0 0;
  color: var(--ink-soft);
  font-size: 0.8rem;
}

/* Layout: seletor de blocos + bancada ------------------------------------- */

.machine-layout {
  display: grid;
  align-items: start;
  padding-bottom: 56px;
  gap: 26px;
  grid-template-columns: minmax(240px, 300px) minmax(0, 1fr);
}

.machine-blocks {
  position: sticky;
  top: 92px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.machine-blocks-label {
  margin: 0 0 12px;
  color: var(--ink-soft);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.machine-tabs {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.machine-tabs button {
  display: flex;
  align-items: center;
  padding: 10px 11px;
  gap: 11px;
  color: var(--ink-soft);
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 11px;
  cursor: pointer;
  font-family: inherit;
  transition:
    color 160ms ease,
    background-color 160ms ease,
    border-color 160ms ease;
}

.machine-tabs button:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.7);
}

.machine-tabs button.active {
  color: var(--green-dark);
  background:
    linear-gradient(135deg, rgba(220, 234, 228, 0.96), rgba(240, 246, 242, 0.9));
  border-color: rgba(35, 108, 87, 0.2);
}

.machine-tab-index {
  display: grid;
  width: 30px;
  height: 30px;
  flex: none;
  place-items: center;
  color: var(--ink-soft);
  background: rgba(15, 40, 32, 0.06);
  border-radius: 8px;
  font-size: 0.74rem;
  font-weight: 800;
}

.machine-tabs button.active .machine-tab-index {
  color: #f4f9f7;
  background: var(--green);
}

.machine-tabs button strong {
  display: block;
  font-size: 0.9rem;
  line-height: 1.2;
}

.machine-tabs button small {
  display: block;
  margin-top: 2px;
  font-size: 0.73rem;
  opacity: 0.85;
}

/* Bancada ----------------------------------------------------------------- */

.machine-panel:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: 6px;
}

.machine-block-head {
  margin-bottom: 22px;
}

.machine-block-head h2 {
  max-width: 26ch;
  margin: 8px 0 12px;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  line-height: 1.14;
}

.machine-block-head > p {
  max-width: 72ch;
  color: var(--ink-soft);
  line-height: 1.62;
}

.machine-card {
  margin-bottom: 18px;
  padding: 22px 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow);
}

.machine-card h3 {
  margin: 0 0 12px;
  font-size: 1.08rem;
}

.machine-card h4 {
  margin: 0 0 6px;
  font-size: 0.95rem;
}

.machine-card p {
  max-width: 74ch;
  color: var(--ink-soft);
  line-height: 1.62;
}

.machine-card pre {
  overflow-x: auto;
  margin: 12px 0;
  padding: 14px 16px;
  color: #dfeae5;
  background: #101a16;
  border-radius: 11px;
  font-size: 0.83rem;
  line-height: 1.55;
}

.machine-card-debt {
  border-color: rgba(200, 92, 84, 0.45);
}

.machine-note {
  margin-top: 12px;
  padding: 12px 14px;
  background: rgba(35, 108, 87, 0.06);
  border-left: 3px solid var(--green);
  border-radius: 0 9px 9px 0;
  font-size: 0.9rem;
}

/* Tabelas ----------------------------------------------------------------- */

.machine-table-scroll {
  overflow-x: auto;
  margin: 12px 0;
}

.machine-table-scroll table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.87rem;
}

.machine-table-scroll th,
.machine-table-scroll td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.machine-table-scroll th {
  color: var(--ink);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.machine-table-scroll td {
  color: var(--ink-soft);
}

.machine-row-highlight td {
  color: var(--green-dark);
  background: rgba(35, 108, 87, 0.07);
}

/* Componentes visuais ----------------------------------------------------- */

.machine-voltage,
.machine-slices,
.machine-triple {
  display: flex;
  margin: 14px 0;
  flex-wrap: wrap;
  gap: 10px;
}

.machine-voltage span,
.machine-slices span,
.machine-triple span {
  display: grid;
  flex: 1 1 130px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 11px;
  gap: 3px;
}

.machine-voltage small,
.machine-slices small,
.machine-triple small {
  color: var(--ink-soft);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.machine-voltage strong,
.machine-slices strong,
.machine-triple strong {
  font-size: 1.02rem;
}

.machine-triple em {
  color: var(--ink-soft);
  font-size: 0.76rem;
  font-style: normal;
}

.machine-voltage .high {
  border-color: rgba(35, 108, 87, 0.4);
  background: rgba(35, 108, 87, 0.07);
}

.machine-voltage .low {
  background: rgba(15, 40, 32, 0.05);
}

.machine-slices .rax { flex-grow: 8; }
.machine-slices .eax { flex-grow: 4; }
.machine-slices .ax { flex-grow: 2; }
.machine-slices .al { flex-grow: 1; }

.machine-compare,
.machine-instr-grid,
.machine-roads {
  display: grid;
  margin: 14px 0;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.machine-compare > div,
.machine-instr-grid > div,
.machine-roads > article {
  padding: 14px 16px;
  background: rgba(15, 40, 32, 0.035);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.machine-compare p,
.machine-instr-grid p,
.machine-roads p {
  font-size: 0.88rem;
}

.machine-analogy {
  margin-top: 8px;
  color: var(--green-dark);
  font-size: 0.84rem;
  font-style: italic;
}

.machine-steps,
.machine-list {
  max-width: 74ch;
  margin: 12px 0;
  padding-left: 22px;
  color: var(--ink-soft);
  line-height: 1.62;
}

.machine-steps li,
.machine-list li {
  margin-bottom: 7px;
}

/* Ponte com o código do SOIA ---------------------------------------------- */

.machine-soia {
  margin-top: 16px;
  padding: 15px 17px;
  background: rgba(35, 108, 87, 0.07);
  border: 1px solid rgba(35, 108, 87, 0.24);
  border-radius: 12px;
}

.machine-soia .kicker {
  color: var(--green-dark);
}

.machine-soia p {
  font-size: 0.9rem;
}

.machine-soia-warning {
  background: rgba(200, 92, 84, 0.08);
  border-color: rgba(200, 92, 84, 0.35);
}

.machine-soia-warning .kicker {
  color: #a2453e;
}

/* Rodapé de controles ----------------------------------------------------- */

.machine-controls {
  display: flex;
  margin-top: 22px;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.machine-control-button {
  padding: 11px 18px;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 600;
}

.machine-control-button:hover:not(:disabled) {
  border-color: var(--green);
}

.machine-control-button.primary {
  color: #f6faf8;
  background: var(--green);
  border-color: var(--green);
}

.machine-control-button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.machine-noscript {
  padding: 14px 16px;
  background: rgba(227, 164, 67, 0.12);
  border: 1px solid rgba(227, 164, 67, 0.4);
  border-radius: 11px;
}

.machine-footer {
  padding: 26px 0 40px;
  border-top: 1px solid var(--line);
}

.machine-footer .machine-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--ink-soft);
  font-size: 0.85rem;
}

/* Responsivo -------------------------------------------------------------- */

@media (max-width: 1000px) {
  .machine-shell {
    width: calc(100% - 36px);
  }

  .machine-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .machine-blocks {
    position: static;
  }

  .machine-tabs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  }

  .machine-hero {
    padding-top: 34px;
  }

  .machine-card {
    padding: 18px 16px;
  }

  .machine-controls {
    flex-direction: column;
  }

  .machine-control-button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .machine-tabs button {
    transition: none;
  }
}