:root {
  color-scheme: dark;

  --bg: #050506;
  --surface: #0c0c0e;
  --surface-raised: #111114;
  --surface-soft: rgba(255, 255, 255, 0.035);

  --border: rgba(255, 255, 255, 0.12);
  --border-strong: rgba(255, 255, 255, 0.2);

  --text: #f5f5f7;
  --muted: #a1a1a6;
  --faint: #6e6e73;

  --accent: #0a84ff;
  --accent-2: #64d2ff;
  --success: #30d158;
  --warning: #ffd60a;
  --danger: #ff453a;

  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;

  --page-max: 1160px;
  --page-pad: clamp(1rem, 4vw, 2.5rem);

  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI",
    Roboto, Helvetica, Arial, sans-serif;
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI",
    Roboto, Helvetica, Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--bg);
  color-scheme: dark;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(10, 132, 255, 0.16), transparent 62%),
    var(--bg);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
}

h2 {
  margin-bottom: 0.8rem;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.04;
  letter-spacing: -0.045em;
}

h3 {
  margin-bottom: 1rem;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

a {
  color: inherit;
}

button,
input,
select {
  font: inherit;
}

button {
  color: inherit;
}

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
  border-radius: 6px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 20;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.7rem 0.9rem;
  color: #001018;
  background: var(--accent-2);
  border-radius: 10px;
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 160ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header {
  border-bottom: 1px solid var(--border);
}

.site-header__inner,
.page,
.site-footer__inner {
  width: min(100%, var(--page-max));
  margin-inline: auto;
  padding-inline: var(--page-pad);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  min-height: 44px;
  color: var(--text);
  font-weight: 700;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.brand__mark {
  width: 27px;
  height: 27px;
  border-radius: 9px;
  background: linear-gradient(145deg, var(--accent-2), var(--accent));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.brand__name {
  font-size: 1rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.7rem, 3vw, 1.4rem);
  color: var(--muted);
  font-size: 0.9rem;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  text-decoration: none;
}

.site-nav a:hover {
  color: var(--text);
}

.hero {
  display: grid;
  gap: clamp(2rem, 5vw, 4.5rem);
  padding-block: clamp(4rem, 10vw, 8rem) clamp(2.5rem, 6vw, 4.5rem);
}

.hero__copy {
  min-width: 0;
}

.hero h1 {
  max-width: 860px;
  margin-bottom: clamp(1.2rem, 2vw, 1.7rem);
  font-size: clamp(3.1rem, 10vw, 7.4rem);
  line-height: 0.9;
  letter-spacing: -0.075em;
  text-wrap: balance;
}

.hero h1 span {
  color: var(--muted);
}

.hero__lede {
  max-width: 62ch;
  margin-bottom: 1.6rem;
  color: var(--muted);
  font-size: clamp(1rem, 1.8vw, 1.22rem);
}

.eyebrow,
.card-label {
  margin-bottom: 0.9rem;
  color: var(--accent-2);
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.tag-list li,
.chip {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0.25rem 0.7rem;
  color: var(--muted);
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
}

.panel {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.018)),
    var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.055);
}

.hero__card {
  align-self: end;
  padding: clamp(1.25rem, 3vw, 2rem);
}

.metric {
  display: grid;
  gap: 0.15rem;
  padding-bottom: 1.2rem;
  margin-bottom: 1.2rem;
  border-bottom: 1px solid var(--border);
}

.metric span {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 750;
  line-height: 0.9;
  letter-spacing: -0.07em;
  font-variant-numeric: tabular-nums;
}

.metric small,
.metric-row small {
  color: var(--faint);
  font-size: 0.78rem;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.metric-row span {
  display: block;
  color: var(--text);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
}

.fine-print {
  margin: 0;
  color: var(--faint);
  font-size: 0.82rem;
  line-height: 1.55;
}

.status {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: 52px;
  padding: 0.8rem 1rem;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.9rem;
}

.status__dot {
  flex: none;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
}

.status__text {
  min-width: 0;
}

html[data-app-state="empty"] .status__dot {
  background: var(--faint);
}

html[data-app-state="error"] .status__dot {
  background: var(--danger);
}

html[data-app-state="ready"] .status__dot {
  background: var(--success);
}

html[data-app-state="loading"] .status__dot {
  background: var(--warning);
}

.status__retry {
  min-height: 36px;
  margin-left: auto;
  padding: 0.35rem 0.7rem;
  color: var(--text);
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 650;
}

.status__retry:hover {
  background: rgba(255, 255, 255, 0.05);
}

.section {
  padding-block: clamp(2.4rem, 6vw, 4.5rem);
  border-top: 1px solid var(--border);
}

.section__heading {
  max-width: 760px;
  margin-bottom: clamp(1.4rem, 3vw, 2rem);
}

.section__heading > p:last-child {
  max-width: 66ch;
  margin-bottom: 0;
  color: var(--muted);
}

/* ---------- botões ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0.55rem 1.1rem;
  color: var(--text);
  background: var(--surface-raised);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-weight: 650;
}

.btn:hover {
  background: #1a1a1f;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn--primary {
  color: #001018;
  background: var(--accent-2);
  border-color: transparent;
}

.btn--primary:hover {
  background: #86dcff;
}

.btn--ghost {
  background: transparent;
}

.btn--block {
  width: 100%;
}

.link-button {
  padding: 0;
  color: var(--accent-2);
  background: none;
  border: 0;
  cursor: pointer;
  font-size: 0.82rem;
}

.link-button:hover {
  text-decoration: underline;
}

/* ---------- filtros ---------- */

.filters {
  padding: clamp(1rem, 3vw, 1.5rem);
}

.filters fieldset {
  min-width: 0;
  padding: 0;
  margin: 0;
  border: 0;
}

.keyword-row {
  display: flex;
  align-items: flex-end;
  gap: 0.6rem;
}

.field--grow {
  flex: 1;
  min-width: 0;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  min-height: 2rem;
  padding: 0;
  margin: 1rem 0;
  list-style: none;
}

.chip--keyword {
  gap: 0.35rem;
  padding-right: 0.3rem;
  color: var(--text);
}

.chip__remove {
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  padding: 0;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.05rem;
  line-height: 1;
}

.chip__remove:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.08);
}

.mode {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.2rem;
  padding: 0;
  margin: 0 0 1.2rem;
  border: 0;
  font-size: 0.9rem;
}

.mode legend {
  width: 100%;
  margin-bottom: 0.4rem;
  padding: 0;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.mode label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-height: 32px;
  cursor: pointer;
}

.filter-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.filters__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.8rem 1.2rem;
}

.field {
  display: grid;
  gap: 0.45rem;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.field input,
.field select {
  width: 100%;
  min-height: 46px;
  padding: 0 0.85rem;
  color: var(--text);
  background: #09090b;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  letter-spacing: 0;
  text-transform: none;
}

.field input::placeholder {
  color: var(--faint);
}

.field input:disabled,
.field select:disabled {
  color: var(--muted);
  opacity: 0.72;
  cursor: not-allowed;
}

/* ---------- comentários ---------- */

.preview-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.comments-panel {
  padding: clamp(1rem, 3vw, 1.4rem);
}

.comments-panel__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1rem;
  color: var(--text);
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  font-weight: 650;
}

.comment-list {
  display: grid;
  gap: 0.8rem;
  padding-block: 1rem;
}

.comment-list:empty {
  padding-block: 0;
}

.comment {
  padding: 1rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
}

.comment--reply {
  margin-left: clamp(0.5rem, 3vw, 1.5rem);
  border-left: 2px solid var(--border-strong);
}

.comment__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.2rem 0.75rem;
  margin-bottom: 0.45rem;
}

.comment__head strong {
  font-size: 0.92rem;
}

.comment__meta {
  color: var(--faint);
  font-size: 0.78rem;
}

.comment__text {
  display: -webkit-box;
  margin: 0 0 0.4rem;
  overflow: hidden;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 5;
  line-clamp: 5;
}

.comment__text[data-expanded] {
  display: block;
}

.empty-note {
  padding: 1.5rem 0;
  margin: 0;
  color: var(--muted);
  text-align: center;
}

.comment-skeletons {
  display: grid;
  gap: 0.8rem;
  padding-top: 1rem;
}

.comment-skeleton {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
}

.avatar-skeleton {
  flex: none;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(145deg, rgba(100, 210, 255, 0.28), rgba(10, 132, 255, 0.12));
}

.skeleton-lines {
  display: grid;
  flex: 1;
  gap: 0.6rem;
  align-content: center;
  min-height: 38px;
}

.line {
  width: 100%;
  height: 0.62rem;
  background: rgba(255, 255, 255, 0.075);
  border-radius: 999px;
}

.line--short {
  width: 32%;
}

.line--medium {
  width: 64%;
}

.side-panel {
  align-self: start;
  padding: clamp(1.1rem, 3vw, 1.5rem);
}

.side-panel__text {
  margin-bottom: 1.2rem;
}

/* ---------- nuvem de palavras ---------- */

.wordcloud-panel {
  display: grid;
  gap: 1rem;
  padding: clamp(1rem, 3vw, 1.5rem);
}

.wordcloud {
  display: flex;
  flex-wrap: wrap;
  align-content: center;
  align-items: baseline;
  justify-content: center;
  gap: 0.25rem 0.9rem;
  min-height: 220px;
  padding: clamp(1rem, 4vw, 2.2rem);
  background:
    radial-gradient(circle at 50% 30%, rgba(10, 132, 255, 0.09), transparent 55%),
    #08080a;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.cloud-word {
  padding: 0.05em 0.1em;
  color: rgba(245, 245, 247, 0.72);
  background: none;
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: var(--cloud-size, 1rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.cloud-word[data-tier="3"] {
  color: var(--accent-2);
}

.cloud-word[data-tier="2"] {
  color: rgba(245, 245, 247, 0.92);
}

.cloud-word[data-tier="0"] {
  color: rgba(245, 245, 247, 0.5);
}

.cloud-word:hover {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--accent-2);
}

/* ---------- privacidade e rodapé ---------- */

.section--privacy {
  border-bottom: 0;
}

.privacy {
  padding: clamp(1.2rem, 4vw, 2.2rem);
}

.privacy > p:not(.eyebrow) {
  max-width: 68ch;
  color: var(--muted);
}

.check-list {
  display: grid;
  gap: 0.65rem;
  padding: 0;
  margin: 1.3rem 0 0;
  list-style: none;
  color: var(--text);
  font-size: 0.92rem;
}

.check-list li {
  position: relative;
  padding-left: 1.2rem;
}

.check-list li::before {
  position: absolute;
  top: 0.52em;
  left: 0;
  width: 0.5rem;
  height: 0.5rem;
  content: "";
  background: var(--success);
  border-radius: 50%;
}

.site-footer {
  padding-block: 2rem;
  color: var(--faint);
  border-top: 1px solid var(--border);
  font-size: 0.84rem;
}

.site-footer__inner {
  display: grid;
  gap: 0.55rem;
}

.site-footer p {
  max-width: 82ch;
  margin-bottom: 0;
}

.noscript {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  left: 1rem;
  z-index: 10;
  max-width: 680px;
  margin-inline: auto;
  padding: 1rem;
  color: var(--text);
  background: #111114;
  border: 1px solid var(--danger);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
}

@media (min-width: 640px) {
  .filter-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .hero {
    grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
    align-items: end;
  }

  .preview-layout {
    grid-template-columns: minmax(0, 1.45fr) minmax(250px, 0.55fr);
  }
}

@media (min-width: 1000px) {
  .filter-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: no-preference) {
  .hero__copy,
  .hero__card {
    animation: enter 460ms cubic-bezier(0.2, 0.75, 0.2, 1) both;
  }

  .hero__card {
    animation-delay: 80ms;
  }

  @keyframes enter {
    from {
      opacity: 0;
      transform: translateY(12px);
    }

    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}