/* ---- AJUSTES ESPECÍFICOS: CONCEITOS INICIAIS DE CINEMÁTICA ---- */

.formula-box.formula-inline {
  max-width: 360px;
  margin: 1.1rem auto;
}

p.equation-line {
  color: var(--titulo);
  font-weight: 700;
  text-align: center;
  overflow: visible;
  padding: 0.25rem 0;
  margin: 0.3rem 0;
}

.formula-box .formula-expr {
  text-align: center;
}

.equation-line mjx-container,
.formula-expr mjx-container {
  color: var(--titulo);
  display: inline-block;
  margin: 0 auto;
}

/* ---- DIAGRAMAS DE DESLOCAMENTO EM 1D ---- */
.displacement-1d-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin: 1.35rem 0 1.6rem;
}

.displacement-1d-card {
  border: 1.5px solid var(--border);
  border-radius: 12px;
  background: var(--surface-2);
  overflow: hidden;
}

.displacement-title {
  padding: 0.7rem 0.9rem 0;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--titulo);
}

.displacement-1d-card p {
  margin: 0;
  padding: 0 0.9rem 0.85rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.line-diagram {
  position: relative;
  height: 138px;
  margin: 0.15rem 0.55rem 0.2rem;
}

.line-diagram .axis-line {
  position: absolute;
  left: 7%;
  right: 7%;
  top: 67%;
  height: 4px;
  border-radius: 999px;
  background: #64748b;
}

.line-diagram .axis-arrow {
  position: absolute;
  right: 5.7%;
  top: calc(67% - 5px);
  width: 0;
  height: 0;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-left: 12px solid #64748b;
}

.line-diagram .tick {
  position: absolute;
  top: calc(67% - 10px);
  width: 3px;
  height: 24px;
  border-radius: 999px;
  background: #475569;
}

.line-diagram .dot {
  position: absolute;
  top: calc(67% - 10px);
  width: 20px;
  height: 20px;
  border: 3px solid #ffffff;
  border-radius: 50%;
  box-shadow: 0 2px 7px rgba(15, 23, 42, 0.25);
  transform: translateX(-50%);
}

.line-diagram .dot-start {
  background: #22c55e;
}

.line-diagram .dot-end {
  background: #f97316;
}

.line-diagram .dot-far {
  background: #94a3b8;
}

.line-diagram .diagram-label {
  position: absolute;
  color: var(--titulo);
  font-size: 0.76rem;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
}

.line-diagram .zero-label {
  left: 13%;
  top: 76%;
}

.line-diagram .motion-arrow,
.line-diagram .delta-arrow {
  position: absolute;
  height: 3px;
  border-radius: 999px;
  transform-origin: left center;
}

.line-diagram .motion-arrow {
  background: #94a3b8;
  color: #94a3b8;
}

.line-diagram .delta-arrow {
  background: #2f5bea;
  color: #2f5bea;
}

.line-diagram .motion-arrow::after,
.line-diagram .delta-arrow::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -5px;
  width: 0;
  height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 10px solid currentColor;
}

.path-back .tick-zero,
.positive-move .tick-zero,
.negative-move .tick-zero {
  left: 14%;
}

.path-back .tick-start,
.path-back .dot-start {
  left: 25%;
}

.path-back .tick-far,
.path-back .dot-far {
  left: 76%;
}

.path-back .tick-end,
.path-back .dot-end {
  left: 58%;
}

.path-back .start-label {
  left: 22.8%;
  top: 76%;
}

.path-back .far-label {
  left: 72.5%;
  top: 76%;
}

.path-back .end-label {
  left: 56.5%;
  top: 76%;
}

.path-back .motion-arrow-forward {
  left: 28%;
  top: 26%;
  width: 45%;
}

.path-back .motion-arrow-back {
  left: 75%;
  top: 42%;
  width: 16%;
  transform: rotate(180deg);
}

.path-back .delta-positive {
  left: 28%;
  top: 55%;
  width: 27%;
}

.path-back .delta-label {
  left: 34%;
  top: 42%;
}

.positive-move .tick-start,
.positive-move .dot-start {
  left: 28%;
}

.positive-move .tick-end,
.positive-move .dot-end {
  left: 72%;
}

.positive-move .start-label {
  left: 25.5%;
  top: 76%;
}

.positive-move .end-label {
  left: 70.5%;
  top: 76%;
}

.positive-move .delta-positive {
  left: 31%;
  top: 43%;
  width: 38%;
}

.positive-move .delta-label {
  left: 45%;
  top: 29%;
}

.negative-move .tick-start,
.negative-move .dot-start {
  left: 72%;
}

.negative-move .tick-end,
.negative-move .dot-end {
  left: 31%;
}

.negative-move .start-label {
  left: 69.5%;
  top: 76%;
}

.negative-move .end-label {
  left: 29.5%;
  top: 76%;
}

.negative-move .delta-negative {
  left: 72%;
  top: 43%;
  width: 38%;
  transform: rotate(180deg);
}

.negative-move .delta-label {
  left: 44%;
  top: 29%;
}

@media (min-width: 860px) {
  .displacement-1d-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 520px) {
  .line-diagram {
    height: 128px;
  }

  .line-diagram .diagram-label {
    font-size: 0.7rem;
  }
}

/* ---- DIAGRAMA DE DESLOCAMENTO EM 2D ---- */
.displacement-2d-card {
  border: 1.5px solid var(--border);
  border-radius: 12px;
  background: var(--surface-2);
  overflow: hidden;
  margin: 1.35rem 0 1.6rem;
}

.plane-diagram {
  position: relative;
  height: min(420px, 62vw);
  min-height: 300px;
  margin: 0.6rem 0.9rem 0.3rem;
  border-radius: 10px;
  background:
    linear-gradient(rgba(47, 91, 234, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47, 91, 234, 0.08) 1px, transparent 1px),
    #ffffff;
  background-size: 20% 20%;
  border: 1px solid var(--border);
}

.plane-diagram .grid-line,
.plane-diagram .plane-axis,
.plane-diagram .component,
.plane-diagram .projection,
.plane-diagram .displacement-vector {
  position: absolute;
  display: block;
  transform-origin: left center;
}

.plane-diagram .plane-axis {
  z-index: 2;
  background: #64748b;
}

.plane-diagram .x-axis {
  left: 8%;
  right: 7%;
  top: 82%;
  height: 3px;
}

.plane-diagram .y-axis {
  left: 12%;
  top: 8%;
  width: 3px;
  height: 78%;
}

.plane-diagram .axis-arrow {
  position: absolute;
  z-index: 3;
  width: 0;
  height: 0;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-left: 12px solid #64748b;
}

.plane-diagram .x-arrow {
  right: 5.7%;
  top: calc(82% - 5px);
}

.plane-diagram .y-arrow {
  left: calc(12% - 5px);
  top: 6.5%;
  transform: rotate(-90deg);
}

.plane-diagram .component,
.plane-diagram .projection {
  z-index: 3;
  background: repeating-linear-gradient(
    90deg,
    rgba(30, 42, 120, 0.82) 0 8px,
    transparent 8px 14px
  );
}

.plane-diagram .projection {
  opacity: 0.55;
}

.plane-diagram .component-x {
  left: 36%;
  top: 67%;
  width: 36%;
  height: 3px;
}

.plane-diagram .component-y {
  left: 72%;
  top: 28%;
  width: 3px;
  height: 39%;
  background: repeating-linear-gradient(
    180deg,
    rgba(30, 42, 120, 0.82) 0 8px,
    transparent 8px 14px
  );
}

.plane-diagram .projection-start-x {
  left: 12%;
  top: 67%;
  width: 24%;
  height: 2px;
}

.plane-diagram .projection-start-y {
  left: 36%;
  top: 67%;
  width: 2px;
  height: 15%;
  background: repeating-linear-gradient(
    180deg,
    rgba(30, 42, 120, 0.82) 0 8px,
    transparent 8px 14px
  );
}

.plane-diagram .projection-end-x {
  left: 12%;
  top: 28%;
  width: 60%;
  height: 2px;
}

.plane-diagram .projection-end-y {
  left: 72%;
  top: 28%;
  width: 2px;
  height: 54%;
  background: repeating-linear-gradient(
    180deg,
    rgba(30, 42, 120, 0.82) 0 8px,
    transparent 8px 14px
  );
}

.plane-diagram .displacement-vector {
  z-index: 4;
  left: 36%;
  top: 67%;
  width: 41.1%;
  height: 4px;
  border-radius: 999px;
  background: #f97316;
  transform: rotate(-29.5deg);
}

.plane-diagram .displacement-vector::after {
  content: "";
  position: absolute;
  right: -1px;
  top: -5px;
  width: 0;
  height: 0;
  border-top: 7px solid transparent;
  border-bottom: 7px solid transparent;
  border-left: 12px solid #f97316;
}

.plane-diagram .point {
  position: absolute;
  z-index: 5;
  width: 18px;
  height: 18px;
  border: 3px solid #ffffff;
  border-radius: 50%;
  box-shadow: 0 2px 7px rgba(15, 23, 42, 0.25);
  transform: translate(-50%, -50%);
}

.plane-diagram .point-start {
  left: 36%;
  top: 67%;
  background: #22c55e;
}

.plane-diagram .point-end {
  left: 72%;
  top: 28%;
  background: #f97316;
}

.plane-diagram .plane-label {
  position: absolute;
  z-index: 6;
  padding: 0.2rem 0.38rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--titulo);
  font-size: clamp(0.68rem, 1.7vw, 0.84rem);
  font-weight: 700;
  line-height: 1.1;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.12);
  white-space: nowrap;
}

.plane-diagram .origin-label {
  left: 8%;
  top: 84%;
}

.plane-diagram .x-label {
  right: 4.5%;
  top: 84%;
}

.plane-diagram .y-label {
  left: 7.5%;
  top: 5%;
}

.plane-diagram .start-label {
  left: 37%;
  top: 69%;
}

.plane-diagram .end-label {
  left: 73%;
  top: 24%;
}

.plane-diagram .x0-label {
  left: 28%;
  top: 84%;
}

.plane-diagram .y0-label {
  left: 5%;
  top: 65%;
}

.plane-diagram .x-end-label {
  left: 66%;
  top: 84%;
}

.plane-diagram .y-end-label {
  left: 5%;
  top: 26%;
}

.plane-diagram .dx-label {
  left: 48%;
  top: 69%;
}

.plane-diagram .dy-label {
  left: 73.5%;
  top: 47%;
}

.plane-diagram .vector-label {
  left: 53%;
  top: 44%;
}

.plane-calculation {
  padding: 0 0.9rem 0.8rem;
}

.plane-calculation p {
  margin-bottom: 0.45rem;
}

@media (max-width: 520px) {
  .plane-diagram {
    min-height: 260px;
    margin-left: 0.6rem;
    margin-right: 0.6rem;
  }

  .plane-diagram .plane-label {
    font-size: 0.64rem;
  }

  .plane-diagram .start-label {
    left: 37%;
  }

  .plane-diagram .end-label {
    left: 70%;
  }
}

/* ---- CANVAS DO SIMULADOR ---- */
#planoCanvas {
  display: block;
  margin: 0.5rem auto 0;
  max-width: 100%;
  border-radius: 12px;
  border: 1.5px solid #dbe4ff;
  box-shadow: 0 4px 18px rgba(30, 42, 120, 0.10);
}

/* ---- SIMULADOR 2D ---- */
.graph-desc {
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  text-align: center;
}

.sim-group {
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 0.65rem 0.8rem 0.5rem;
  margin-bottom: 0.75rem;
  background: var(--surface-2);
}

.sim-group-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--titulo);
  margin-bottom: 0.4rem;
  letter-spacing: 0.01em;
}

.sim-output-box {
  margin-top: 1rem;
  padding: 0.8rem 1rem;
  background: #f0f4ff;
  border: 1.5px solid #c7d2fe;
  border-radius: 10px;
}

.sim-eq {
  text-align: center;
  color: var(--titulo);
  font-size: 1rem;
  padding: 0.2rem 0;
}

.sim-eq-total {
  margin-top: 0.35rem;
  padding-top: 0.45rem;
  border-top: 1px solid #c7d2fe;
  font-weight: 700;
}