/* ==========================================================================
   IPR — Explicação · components.css
   Componentes de conteúdo, cenas animadas e tooltip.
   ========================================================================== */

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

.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(3rem, 7vw, 5.5rem) clamp(2.6rem, 6vw, 4.5rem);
  border-bottom: 1px solid var(--line);
}

.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(1.6rem, 4vw, 3.4rem);
  align-items: center;
}

@media (max-width: 940px) {
  .hero__grid {
    grid-template-columns: 1fr;
  }
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 1rem;
}

.kicker::before {
  content: "";
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
}

.hero h1 {
  margin-bottom: 0.6em;
}

.hero .lead {
  margin-bottom: 1.6rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.6rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.72rem 1.2rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.97rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.16s var(--ease), box-shadow 0.16s var(--ease),
    background 0.16s var(--ease);
}

.btn--primary {
  background: var(--brand);
  color: #fff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12), 0 8px 22px color-mix(in srgb, var(--brand) 32%, transparent);
}

.btn--primary:hover {
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.14), 0 12px 30px color-mix(in srgb, var(--brand) 40%, transparent);
}

.btn--ghost {
  background: var(--surface);
  color: var(--text);
  border-color: var(--line-strong);
}

.btn--ghost:hover {
  background: var(--surface-2);
  color: var(--text);
}

/* ---------- Cartões ---------- */

.cards {
  display: grid;
  gap: 1.1rem;
}

.cards--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cards--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cards--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 980px) {
  .cards--3,
  .cards--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
  .cards--2,
  .cards--3,
  .cards--4 { grid-template-columns: 1fr; }
}

.card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1.35rem 1.3rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-s);
  text-decoration: none;
  color: inherit;
  transition: transform 0.18s var(--ease), box-shadow 0.18s var(--ease),
    border-color 0.18s var(--ease);
}

a.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  border-color: var(--line-strong);
  color: inherit;
}

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

.card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-soft);
  line-height: 1.6;
}

.card__icon {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  background: var(--brand-soft);
  color: var(--brand-ink);
  margin-bottom: 0.35rem;
}

.card__icon svg {
  width: 21px;
  height: 21px;
}

.card__more {
  margin-top: auto;
  padding-top: 0.5rem;
  font-size: 0.88rem;
  font-weight: 650;
  color: var(--brand);
}

/* ---------- Resumo / TL;DR ---------- */

.tldr {
  position: relative;
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 1.6rem clamp(1.2rem, 3vw, 2rem);
  box-shadow: var(--shadow-s);
}

.tldr::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  border-radius: var(--radius-l) 0 0 var(--radius-l);
  background: linear-gradient(180deg, var(--brand), var(--accent));
}

.tldr h2,
.tldr h3 {
  margin-top: 0;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.tldr ul {
  margin: 0.6rem 0 0;
  padding-left: 1.1em;
}

.tldr li {
  margin: 0.55em 0;
}

.tldr li::marker {
  color: var(--brand);
}

/* ---------- Callouts ---------- */

.callout {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 0.9rem;
  padding: 1.05rem 1.2rem;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--surface);
  margin: 1.5rem 0;
  font-size: 0.97rem;
}

.callout > svg {
  width: 22px;
  height: 22px;
  margin-top: 2px;
}

.callout p:last-child {
  margin-bottom: 0;
}

.callout__title {
  font-weight: 700;
  display: block;
  margin-bottom: 0.2rem;
}

.callout--info {
  background: var(--brand-soft);
  border-color: color-mix(in srgb, var(--brand) 26%, var(--line));
  color: var(--text);
}

.callout--info > svg { color: var(--brand-ink); }

.callout--warn {
  background: var(--warn-soft);
  border-color: color-mix(in srgb, var(--warn) 30%, var(--line));
}

.callout--warn > svg { color: var(--warn); }

.callout--danger {
  background: var(--danger-soft);
  border-color: color-mix(in srgb, var(--danger) 30%, var(--line));
}

.callout--danger > svg { color: var(--danger); }

.callout--ok {
  background: var(--ok-soft);
  border-color: color-mix(in srgb, var(--ok) 30%, var(--line));
}

.callout--ok > svg { color: var(--ok); }

/* ---------- Termo com tooltip ---------- */

.term {
  display: inline;
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  text-align: inherit;
  cursor: help;
  text-decoration: underline dotted currentColor;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
}

.term:hover,
.term:focus-visible {
  color: var(--brand);
}

.tooltip {
  position: fixed;
  z-index: 300;
  max-width: min(340px, calc(100vw - 24px));
  background: var(--text);
  color: var(--bg);
  padding: 0.7rem 0.85rem;
  border-radius: 11px;
  font-size: 0.875rem;
  line-height: 1.52;
  box-shadow: var(--shadow-l);
  opacity: 0;
  transform: translateY(5px) scale(0.985);
  pointer-events: none;
  transition: opacity 0.14s var(--ease), transform 0.14s var(--ease);
}

.tooltip[data-show="true"] {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.tooltip a {
  color: inherit;
  font-weight: 700;
  text-decoration: underline;
  display: inline-block;
  margin-top: 0.35rem;
}

/* ---------- Acordeão ---------- */

.acc {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  margin: 0.7rem 0;
  overflow: hidden;
  transition: border-color 0.2s var(--ease);
}

.acc[open] {
  border-color: var(--line-strong);
  box-shadow: var(--shadow-s);
}

.acc > summary {
  cursor: pointer;
  padding: 1rem 1.15rem;
  font-weight: 620;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.acc > summary::-webkit-details-marker {
  display: none;
}

.acc > summary::before {
  content: "";
  width: 9px;
  height: 9px;
  flex: 0 0 auto;
  border-right: 2px solid var(--text-faint);
  border-bottom: 2px solid var(--text-faint);
  transform: rotate(-45deg);
  transition: transform 0.2s var(--ease);
}

.acc[open] > summary::before {
  transform: rotate(45deg);
}

.acc > summary:hover {
  background: var(--surface-2);
}

.acc__body {
  padding: 0 1.15rem 1.2rem;
  font-size: 0.97rem;
  color: var(--text-soft);
}

.acc__body > *:first-child {
  margin-top: 0;
}

.acc__body > *:last-child {
  margin-bottom: 0;
}

/* ---------- Passos numerados ---------- */

.steps {
  list-style: none;
  padding: 0;
  margin: 1.6rem 0;
  counter-reset: step;
}

.step {
  position: relative;
  padding-left: 3.1rem;
  padding-bottom: 1.5rem;
  counter-increment: step;
}

.step:last-child {
  padding-bottom: 0;
}

.step::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: -2px;
  width: 2rem;
  height: 2rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--brand-soft);
  color: var(--brand-ink);
  font-weight: 700;
  font-size: 0.88rem;
  border: 1px solid color-mix(in srgb, var(--brand) 25%, transparent);
}

.step::after {
  content: "";
  position: absolute;
  left: 1rem;
  top: 2.2rem;
  bottom: 0.1rem;
  width: 1px;
  background: var(--line);
}

.step:last-child::after {
  display: none;
}

.step h3,
.step h4 {
  margin-top: 0;
  font-size: 1.04rem;
}

.step p {
  margin-bottom: 0.4em;
  font-size: 0.97rem;
}

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

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  margin: 1.5rem 0;
  box-shadow: var(--shadow-s);
}

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
  min-width: 520px;
}

table.data caption {
  text-align: left;
  padding: 0.9rem 1.1rem 0;
  font-size: 0.85rem;
  color: var(--text-faint);
}

table.data th,
table.data td {
  text-align: left;
  padding: 0.78rem 1.05rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

table.data thead th {
  background: var(--surface-2);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-weight: 700;
  white-space: nowrap;
}

table.data tbody tr:last-child td {
  border-bottom: 0;
}

table.data tbody tr:hover {
  background: color-mix(in srgb, var(--surface-2) 60%, transparent);
}

.yes { color: var(--ok); font-weight: 700; }
.no { color: var(--danger); font-weight: 700; }

/* ---------- Selos / etiquetas ---------- */

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.18rem 0.6rem;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  background: var(--surface-3);
  color: var(--text-soft);
  border: 1px solid var(--line);
  vertical-align: middle;
}

.pill--brand { background: var(--brand-soft); color: var(--brand-ink); border-color: transparent; }
.pill--ok { background: var(--ok-soft); color: var(--ok); border-color: transparent; }
.pill--danger { background: var(--danger-soft); color: var(--danger); border-color: transparent; }
.pill--warn { background: var(--warn-soft); color: var(--warn); border-color: transparent; }

/* ---------- Índice lateral / âncoras ---------- */

.toc {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  background: var(--surface);
  font-size: 0.94rem;
}

.toc h2 {
  margin: 0 0 0.6rem;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.toc ol {
  margin: 0;
  padding-left: 1.2em;
}

.toc a {
  color: var(--text-soft);
  text-decoration: none;
}

.toc a:hover {
  color: var(--brand);
  text-decoration: underline;
}

/* ---------- Cena animada ---------- */

.scene {
  margin: 2rem 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background: var(--surface);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.scene__art {
  position: relative;
  padding: clamp(0.8rem, 2.5vw, 1.6rem) clamp(0.8rem, 2.5vw, 1.8rem) 0.4rem;
  background:
    radial-gradient(40rem 18rem at 50% 0%, color-mix(in srgb, var(--brand) 7%, transparent), transparent 70%),
    var(--surface);
}

.scene__art svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.scene-progress {
  height: 3px;
  background: var(--surface-3);
  margin-top: 0.6rem;
  border-radius: 99px;
  overflow: hidden;
}

.scene-progress > i {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  border-radius: inherit;
  transition: width 0.1s linear;
}

.scene__body {
  padding: 1.1rem clamp(0.9rem, 2.5vw, 1.6rem) 1.3rem;
  border-top: 1px solid var(--line);
  background: var(--surface-2);
}

.scene-caps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.3rem;
  font-size: 0.95rem;
}

.scene-caps li {
  margin: 0;
  padding: 0.45rem 0.7rem;
  border-radius: 9px;
  color: var(--text-faint);
  border-left: 3px solid transparent;
  transition: background 0.25s var(--ease), color 0.25s var(--ease),
    border-color 0.25s var(--ease);
}

.scene-caps li.on {
  background: var(--surface);
  color: var(--text);
  border-left-color: var(--brand);
  box-shadow: var(--shadow-s);
}

.scene-caps b {
  color: var(--brand);
  font-weight: 700;
  margin-right: 0.35rem;
}

.scene__ctl {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0 0 1.1rem;
  padding-inline: clamp(0.9rem, 2.5vw, 1.6rem);
  margin-top: -0.4rem;
}

.scene__ctl button {
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.36rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text-soft);
  cursor: pointer;
  transition: background 0.16s var(--ease), color 0.16s var(--ease);
}

.scene__ctl button:hover {
  background: var(--surface-3);
  color: var(--text);
}

.scene__hint {
  margin-left: auto;
  font-size: 0.8rem;
  color: var(--text-faint);
}

/* Estados dos elementos SVG das cenas */

.scene svg .ghost {
  opacity: 0.3;
}

.scene svg [data-at] {
  opacity: 0;
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
  transform-box: fill-box;
  transform-origin: center;
}

.scene svg [data-at].on {
  opacity: 1;
}

.scene svg [data-at="rise"].on {
  transform: translateY(0);
}

.node {
  fill: var(--surface);
  stroke: var(--line-strong);
  stroke-width: 1.6;
}

.node--brand { fill: var(--brand-soft); stroke: color-mix(in srgb, var(--brand) 45%, transparent); }
.node--accent { fill: var(--accent-soft); stroke: color-mix(in srgb, var(--accent) 45%, transparent); }
.node--warn { fill: var(--warn-soft); stroke: color-mix(in srgb, var(--warn) 45%, transparent); }
.node--danger { fill: var(--danger-soft); stroke: color-mix(in srgb, var(--danger) 45%, transparent); }

.lbl {
  fill: var(--text);
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
}

.lbl-sm {
  fill: var(--text-soft);
  font-family: var(--font);
  font-size: 11px;
  font-weight: 500;
}

.lbl-mono {
  fill: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 10.5px;
}

.edge {
  fill: none;
  stroke: var(--line-strong);
  stroke-width: 1.8;
  stroke-linecap: round;
}

.edge--brand { stroke: var(--brand); }
.edge--accent { stroke: var(--accent); }
.edge--danger { stroke: var(--danger); }

.edge-dash {
  stroke-dasharray: 5 6;
}

/* ---------- Figuras e comparações ---------- */

.figure {
  margin: 2rem 0;
}

.figure > svg {
  display: block;
  width: 100%;
  height: auto;
}

.figure figcaption {
  margin-top: 0.6rem;
  font-size: 0.86rem;
  color: var(--text-faint);
}

.compare {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin: 1.6rem 0;
}

@media (max-width: 680px) {
  .compare { grid-template-columns: 1fr; }
}

.compare__box {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  background: var(--surface);
}

.compare__box h3 {
  margin-top: 0;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.compare__box--good { border-color: color-mix(in srgb, var(--ok) 35%, var(--line)); }
.compare__box--bad { border-color: color-mix(in srgb, var(--danger) 30%, var(--line)); }

.compare__box ul {
  margin: 0;
  padding-left: 1.1em;
  font-size: 0.95rem;
}

/* ---------- Navegação entre páginas ---------- */

.pager {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
}

@media (max-width: 620px) {
  .pager { grid-template-columns: 1fr; }
}

.pager a {
  display: block;
  padding: 1rem 1.2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  text-decoration: none;
  background: var(--surface);
  transition: border-color 0.18s var(--ease), transform 0.18s var(--ease);
}

.pager a:hover {
  border-color: var(--line-strong);
  transform: translateY(-1px);
}

.pager span {
  display: block;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin-bottom: 0.25rem;
}

.pager strong {
  color: var(--text);
  font-size: 1rem;
}

.pager--next {
  text-align: right;
}

/* ---------- Revelação ao rolar ---------- */

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ---------- Demonstrações interativas ---------- */

.demo {
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background: var(--surface);
  box-shadow: var(--shadow-s);
  padding: 1.3rem;
  margin: 2rem 0;
}

.demo__bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 1rem;
}

.demo__bar button {
  font: inherit;
  font-size: 0.86rem;
  font-weight: 600;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text-soft);
  cursor: pointer;
}

.demo__bar button[aria-pressed="true"] {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

.demo__stage {
  display: grid;
  gap: 0.8rem;
}

@media (min-width: 760px) {
  .demo__stage--split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }
}

.bubble {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 0.8rem 1rem;
  background: var(--surface-2);
  font-size: 0.95rem;
  max-width: 42ch;
}

.bubble__meta {
  display: block;
  font-size: 0.8rem;
  color: var(--text-faint);
  margin-top: 0.3rem;
}

.bubble__author {
  font-weight: 700;
  color: var(--text);
}

.bubble--anon .bubble__author {
  color: var(--text-faint);
  font-style: italic;
  font-weight: 600;
}

.meter {
  height: 12px;
  border-radius: 999px;
  background: var(--surface-3);
  overflow: hidden;
  border: 1px solid var(--line);
}

.meter > i {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--brand));
  border-radius: inherit;
  transition: width 0.5s var(--ease);
}

.meter-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-faint);
  margin-bottom: 0.4rem;
}

/* ---------- Marca ---------- */

.brand > span {
  display: inline-flex;
  flex-direction: column;
  line-height: 1.02;
}

/* ---------- Arte do hero ---------- */

.hero-art {
  margin: 0;
}

.hero-art svg {
  display: block;
  width: 100%;
  height: auto;
}

.edge-flow .edge {
  stroke-dasharray: 5 11;
  animation: dashflow 3.2s linear infinite;
  stroke: color-mix(in srgb, var(--brand) 55%, var(--line-strong));
}

.edge-flow .edge:nth-child(2) { animation-delay: -0.8s; }
.edge-flow .edge:nth-child(3) { animation-delay: -1.6s; }
.edge-flow .edge:nth-child(4) { animation-delay: -2.4s; }

@keyframes dashflow {
  to { stroke-dashoffset: -64; }
}

.hero-pulse {
  transform-box: fill-box;
  transform-origin: center;
  animation: heropulse 4.4s var(--ease) infinite;
}

@keyframes heropulse {
  0%, 100% { transform: scale(1); opacity: 0.22; }
  50% { transform: scale(1.08); opacity: 0.05; }
}

.hero-glow {
  animation: heroglow 6s ease-in-out infinite;
}

@keyframes heroglow {
  0%, 100% { opacity: 0.85; }
  50% { opacity: 0.5; }
}

/* ---------- Grade de duas colunas ---------- */

.grid-split {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 2rem;
  align-items: start;
}

@media (max-width: 820px) {
  .grid-split {
    grid-template-columns: 1fr;
  }
}

/* ---------- Ajustes da cena ---------- */

.scene-caps li:hover {
  color: var(--text-soft);
}

.scene svg text {
  pointer-events: none;
}