:root {
  --page-progress: 0;
  --page-progress-percent: 0%;
  --hero-shift: 0px;
  --mid-shift: 0px;
  --deep-shift: 0px;
  --final-shift: 0px;
  --grid-shift: 0px;
  --beam-shift: 0px;
  --orb-rotate: 0deg;
  --orb-scale: 1;
  --light-opacity: 0.14;
  --mesh-opacity: 0.42;
  --beam-opacity: 0.18;
  --grid-opacity: 0.1;
  --final-dark-opacity: 0.18;
  --theme-accent-rgb: 129 140 248;
  --theme-accent-strong-rgb: 79 70 229;
  --theme-secondary-rgb: 56 189 248;
  --theme-surface-rgb: 191 219 254;
  --theme-glow-rgb: 255 255 255;
}

body[data-module-theme="modulo-0"] {
  --theme-accent-rgb: 129 140 248;
  --theme-accent-strong-rgb: 79 70 229;
  --theme-secondary-rgb: 56 189 248;
  --theme-surface-rgb: 191 219 254;
}

body[data-module-theme="modulo-1"] {
  --theme-accent-rgb: 250 204 21;
  --theme-accent-strong-rgb: 234 179 8;
  --theme-secondary-rgb: 96 165 250;
  --theme-surface-rgb: 253 230 138;
}

body[data-module-theme="modulo-2"] {
  --theme-accent-rgb: 251 191 36;
  --theme-accent-strong-rgb: 245 158 11;
  --theme-secondary-rgb: 34 211 238;
  --theme-surface-rgb: 253 230 138;
}

body[data-module-theme="modulo-3"] {
  --theme-accent-rgb: 52 211 153;
  --theme-accent-strong-rgb: 16 185 129;
  --theme-secondary-rgb: 125 211 252;
  --theme-surface-rgb: 187 247 208;
}

body[data-module-theme="modulo-4"] {
  --theme-accent-rgb: 244 114 182;
  --theme-accent-strong-rgb: 225 29 72;
  --theme-secondary-rgb: 45 212 191;
  --theme-surface-rgb: 167 243 208;
}

body {
  background: #020617;
}

summary::-webkit-details-marker {
  display: none;
}

.study-dynamic-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
  background:
    linear-gradient(
      180deg,
      rgba(2, 6, 23, 0.98) 0%,
      rgba(15, 23, 42, 0.96) 18%,
      rgba(30, 41, 59, 0.92) 34%,
      rgb(var(--theme-surface-rgb) / 0.5) 58%,
      rgb(var(--theme-glow-rgb) / 0.4) 82%,
      rgba(226, 232, 240, 0.56) 100%
    );
}

.study-dynamic-bg::before,
.study-dynamic-bg::after {
  content: "";
  position: absolute;
  inset: -12%;
}

.study-dynamic-bg::before {
  opacity: var(--mesh-opacity);
  background:
    radial-gradient(circle at 14% 10%, rgb(var(--theme-accent-rgb) / 0.34), transparent 22%),
    radial-gradient(circle at 82% 18%, rgb(var(--theme-secondary-rgb) / 0.28), transparent 24%),
    radial-gradient(circle at 70% 52%, rgb(var(--theme-glow-rgb) / 0.08), transparent 20%),
    radial-gradient(circle at 30% 78%, rgb(var(--theme-accent-strong-rgb) / 0.24), transparent 24%);
  transform: translate3d(0, var(--hero-shift), 0) scale(var(--orb-scale)) rotate(var(--orb-rotate));
}

.study-dynamic-bg::after {
  opacity: var(--light-opacity);
  background:
    linear-gradient(
      180deg,
      rgba(255, 255, 255, 0) 0%,
      rgba(255, 255, 255, 0.02) 22%,
      rgba(255, 255, 255, 0.16) 48%,
      rgba(255, 255, 255, 0.32) 72%,
      rgba(255, 255, 255, 0.46) 100%
    ),
    radial-gradient(circle at 50% 64%, rgb(var(--theme-glow-rgb) / 0.14), transparent 34%);
  transform: translate3d(0, var(--mid-shift), 0) scale(1.04);
}

.study-dynamic-bg__beam,
.study-dynamic-bg__grid,
.study-dynamic-bg__orb,
.study-dynamic-bg__final {
  position: absolute;
  will-change: transform, opacity;
}

.study-dynamic-bg__grid {
  inset: -12%;
  opacity: var(--grid-opacity);
  background-image:
    linear-gradient(rgb(var(--theme-glow-rgb) / 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgb(var(--theme-glow-rgb) / 0.07) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0.2) 55%, transparent 100%);
  transform: perspective(1000px) rotateX(72deg) translate3d(0, var(--grid-shift), 0) scale(1.4);
  transform-origin: top center;
}

.study-dynamic-bg__beam {
  left: 50%;
  top: -22vh;
  height: 150vh;
  width: min(48rem, 68vw);
  opacity: var(--beam-opacity);
  background: linear-gradient(
    180deg,
    rgb(var(--theme-accent-rgb) / 0.26) 0%,
    rgb(var(--theme-secondary-rgb) / 0.14) 48%,
    rgb(var(--theme-glow-rgb) / 0) 100%
  );
  filter: blur(10px);
  transform: translate3d(-50%, var(--beam-shift), 0) rotate(16deg);
  transform-origin: top center;
}

.study-dynamic-bg__orb,
.study-dynamic-bg__final {
  border-radius: 9999px;
  filter: blur(18px);
}

.study-dynamic-bg__orb--left {
  left: -8rem;
  top: 14vh;
  height: 22rem;
  width: 22rem;
  opacity: 0.28;
  background: radial-gradient(circle, rgb(var(--theme-accent-rgb) / 0.58) 0%, rgb(var(--theme-accent-rgb) / 0) 72%);
  transform: translate3d(0, calc(var(--hero-shift) * -1.35), 0) scale(calc(var(--orb-scale) + 0.08));
}

.study-dynamic-bg__orb--right {
  right: -7rem;
  top: 38vh;
  height: 18rem;
  width: 18rem;
  opacity: 0.22;
  background: radial-gradient(circle, rgb(var(--theme-secondary-rgb) / 0.52) 0%, rgb(var(--theme-secondary-rgb) / 0) 74%);
  transform: translate3d(0, calc(var(--mid-shift) * -1.1), 0) scale(calc(var(--orb-scale) + 0.12));
}

.study-dynamic-bg__orb--core {
  left: 50%;
  top: 54vh;
  height: 28rem;
  width: 28rem;
  opacity: 0.18;
  background: radial-gradient(circle, rgb(var(--theme-glow-rgb) / 0.42) 0%, rgb(var(--theme-glow-rgb) / 0) 70%);
  transform: translate3d(-50%, var(--deep-shift), 0) scale(calc(var(--orb-scale) + 0.2));
}

.study-dynamic-bg__final {
  inset: auto -10% -12% -10%;
  height: 42vh;
  opacity: var(--final-dark-opacity);
  background:
    radial-gradient(circle at 50% 0%, rgb(var(--theme-accent-strong-rgb) / 0.18), transparent 34%),
    radial-gradient(circle at 50% 0%, rgba(15, 23, 42, 0.82), transparent 52%),
    linear-gradient(180deg, rgba(15, 23, 42, 0) 0%, rgba(2, 6, 23, 0.96) 100%);
  transform: translate3d(0, var(--final-shift), 0);
}

.study-page {
  position: relative;
  z-index: 10;
}

/* Tailwind preflight remove marker/bullets de `ul/ol`. Restauramos bullets para listas
   normais e removemos apenas para listas numeradas que usam um "círculo" (span) com `h-6 w-6`. */
.study-page ul {
  list-style-type: disc;
  padding-left: 1.25rem;
}

/* Remove marker/bullets das listas que já renderizam número visual com círculo. */
@supports selector(:has(*)) {
  .study-page ul:has(li span.h-6.w-6) {
    list-style: none;
    padding-left: 0;
  }
}

.study-section {
  border: 1px solid rgb(255 255 255 / 0.6);
  background: rgb(255 255 255 / 0.9);
  backdrop-filter: blur(6px);
}

.study-chip {
  border: 1px solid rgb(var(--theme-accent-rgb) / 0.35);
  background: rgb(var(--theme-accent-rgb) / 0.14);
}

.theme-badge {
  border: 1px solid rgb(var(--theme-accent-rgb) / 0.35);
  background: rgb(var(--theme-accent-rgb) / 0.14);
  color: rgb(var(--theme-glow-rgb) / 0.96);
}

.study-kicker {
  color: rgb(var(--theme-accent-strong-rgb));
}

.theme-kicker {
  color: rgb(var(--theme-accent-strong-rgb));
}

.theme-icon {
  background: rgb(var(--theme-accent-rgb) / 0.16);
  color: rgb(var(--theme-accent-strong-rgb));
}

.study-card-warm {
  border: 1px solid rgb(var(--theme-accent-rgb) / 0.26);
  background: linear-gradient(135deg, rgb(var(--theme-accent-rgb) / 0.12), rgb(var(--theme-accent-rgb) / 0.06));
}

.study-card-cool {
  border: 1px solid rgb(var(--theme-secondary-rgb) / 0.26);
  background: linear-gradient(135deg, rgb(var(--theme-secondary-rgb) / 0.12), rgb(var(--theme-secondary-rgb) / 0.06));
}

.study-note {
  border: 1px solid rgb(var(--theme-accent-rgb) / 0.24);
  background: rgb(var(--theme-accent-rgb) / 0.1);
}

.theme-soft-card {
  border: 1px solid rgb(var(--theme-accent-rgb) / 0.22);
  background: linear-gradient(135deg, rgb(var(--theme-accent-rgb) / 0.12), rgb(var(--theme-secondary-rgb) / 0.08));
}

.theme-soft-panel {
  border: 1px solid rgb(var(--theme-secondary-rgb) / 0.22);
  background: linear-gradient(135deg, rgb(var(--theme-glow-rgb) / 0.88), rgb(var(--theme-surface-rgb) / 0.16));
}

.theme-note {
  border: 1px solid rgb(var(--theme-accent-rgb) / 0.25);
  background: rgb(var(--theme-accent-rgb) / 0.1);
}

.study-placeholder {
  border: 1px dashed rgb(203 213 225);
  background: rgb(248 250 252);
}

/* Justifica o texto corrido dos capítulos sem afetar rótulos curtos de interface. */
.study-page :is(p, li) {
  text-align: justify;
  text-justify: inter-word;
}

/* Capitaliza a primeira letra dos parágrafos (corrige "primeira palavra" sem inicial maiúscula). */
.study-page p::first-letter {
  text-transform: uppercase;
}

/* Aplica a mesma correção em listas e blocos que têm texto direto. */
.study-page li::first-letter {
  text-transform: uppercase;
}

.study-page div::first-letter {
  text-transform: uppercase;
}

.study-page :is(h1, h2, h3, h4, h5, h6),
.study-page :is(.study-chip, .theme-badge, button),
.study-page :is(p, li)[class*="uppercase"],
.study-page :is(p, li)[class*="tracking-"],
.study-page :is(p, li)[class*="text-center"],
.study-page :is(p, li)[class*="text-right"],
.study-page .study-kicker {
  text-align: initial;
  text-justify: auto;
}

/* Camada de animacao reutilizavel para os capitulos. */
.reveal-on-scroll {
  opacity: 0;
  transform: translate3d(0, 24px, 0) scale(0.985);
  transition:
    opacity 520ms ease,
    transform 520ms cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: var(--reveal-delay, 0ms);
  will-change: opacity, transform;
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
}

.hover-lift {
  transition:
    transform 240ms ease,
    box-shadow 240ms ease,
    border-color 240ms ease;
  will-change: transform;
}

.hover-lift:is(:hover, :focus-visible) {
  transform: translate3d(0, -4px, 0);
}

.hover-glow {
  transition: box-shadow 240ms ease;
}

.hover-glow:is(:hover, :focus-visible) {
  box-shadow:
    0 14px 28px -16px rgb(15 23 42 / 0.5),
    0 0 0 1px rgb(var(--theme-accent-rgb) / 0.25);
}

.hover-image {
  transition: transform 320ms ease, filter 320ms ease;
  transform-origin: center;
}

.hover-lift:is(:hover, :focus-visible) .hover-image,
.hover-image:is(:hover, :focus-visible) {
  transform: scale(1.02);
  filter: saturate(1.05);
}

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

  .hover-lift,
  .hover-glow,
  .hover-image {
    transition: none;
  }

  .hover-lift:is(:hover, :focus-visible),
  .hover-image:is(:hover, :focus-visible) {
    transform: none;
  }
}