/* --------------------------------------------------------------------------
   Freebuff Ad Block - install page
   Dark, high-contrast, coral accent. No framework, no build step for CSS.
   -------------------------------------------------------------------------- */

:root {
  --bg: #0b0d12;
  --bg-raise: #0f121a;
  --surface: #131722;
  --surface-2: #171c2a;
  --line: rgba(255, 255, 255, 0.07);
  --line-strong: rgba(255, 255, 255, 0.13);

  --text: #e9edf6;
  --muted: #96a0b5;
  --muted-2: #6f7891;

  --accent: #ff5a45;
  --accent-2: #ffb020;
  --accent-soft: rgba(255, 90, 69, 0.12);
  --ok: #38d39f;

  --radius: 14px;
  --radius-lg: 20px;

  --font:
    ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  --mono:
    ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono",
    monospace;

  --max: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Faint grid + a warm wash behind the hero. */
.grid-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(760px 420px at 12% -6%, rgba(255, 90, 69, 0.16), transparent 70%),
    radial-gradient(620px 380px at 88% 4%, rgba(255, 176, 32, 0.09), transparent 70%),
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px) 0 0 / 100% 64px,
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px) 0 0 / 64px 100%;
  mask-image: linear-gradient(to bottom, #000 0, #000 62%, transparent 100%);
}

a {
  color: inherit;
}

code {
  font-family: var(--mono);
  font-size: 0.87em;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.1em 0.4em;
  color: #dfe5f2;
  word-break: break-word;
}

strong {
  font-weight: 640;
  color: #fff;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 640;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
}

.accent {
  color: var(--accent);
}

/* ---------------------------------------------------------------- topbar */

.topbar {
  max-width: var(--max);
  margin: 0 auto;
  padding: 22px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 620;
  letter-spacing: -0.01em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--accent-soft);
  border: 1px solid rgba(255, 90, 69, 0.28);
  color: var(--accent);
}

.brand:hover .brand-mark {
  background: rgba(255, 90, 69, 0.2);
}

.pill {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 11px;
}

/* ------------------------------------------------------------------ hero */

.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 64px 28px 72px;
}

.hero h1 {
  margin: 0;
  font-size: clamp(38px, 6.4vw, 74px);
  line-height: 1.04;
  letter-spacing: -0.035em;
  font-weight: 700;
  max-width: 15ch;
}

.lede {
  margin: 24px 0 0;
  max-width: 62ch;
  font-size: clamp(16px, 1.5vw, 18.5px);
  color: var(--muted);
}

.lede strong {
  color: var(--text);
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

/* The store button carries `hidden` until app.js finds a listing for the
   browser it is being read in. `.btn` sets its own display, so the attribute
   needs to win explicitly. */
[data-store-button][hidden] {
  display: none !important;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  transition:
    transform 0.16s ease,
    box-shadow 0.16s ease,
    background 0.16s ease,
    border-color 0.16s ease;
}

.btn-primary {
  background: var(--accent);
  color: #1a0603;
  box-shadow: 0 10px 30px -12px rgba(255, 90, 69, 0.75);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 38px -12px rgba(255, 90, 69, 0.85);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-meta {
  font-family: var(--mono);
  font-size: 11.5px;
  opacity: 0.72;
  padding-left: 12px;
  border-left: 1px solid rgba(26, 6, 3, 0.28);
}

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

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.24);
  transform: translateY(-2px);
}

.facts {
  list-style: none;
  margin: 52px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
}

.fact-k,
.fact-v {
  display: block;
}

.fact-k {
  font-size: 11.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin-bottom: 5px;
}

.fact-v {
  font-size: 14.5px;
  color: var(--text);
  font-weight: 540;
}

/* --------------------------------------------------------------- sections */

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 30px 28px;
}

.section-head {
  max-width: 66ch;
  margin-bottom: 34px;
}

.section-head h2,
.callout h2 {
  margin: 0;
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1.16;
  letter-spacing: -0.028em;
  font-weight: 660;
}

.section-sub {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 16.5px;
}

/* ------------------------------------------------------------------ cards */

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 26px 24px 28px;
  transition:
    border-color 0.2s ease,
    transform 0.2s ease,
    background 0.2s ease;
}

.card:hover {
  border-color: rgba(255, 90, 69, 0.34);
  background: var(--surface-2);
  transform: translateY(-3px);
}

.card .step {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.08em;
}

.card h3 {
  margin: 14px 0 10px;
  font-size: 19px;
  letter-spacing: -0.018em;
  font-weight: 640;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.card em {
  color: var(--text);
  font-style: normal;
}

/* --------------------------------------------------------------- callout */

.callout {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 40px;
  align-items: center;
  background: linear-gradient(140deg, rgba(255, 90, 69, 0.09), rgba(255, 176, 32, 0.04));
  border: 1px solid rgba(255, 90, 69, 0.24);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.callout p:not(.eyebrow) {
  margin: 16px 0 0;
  color: var(--muted);
  font-size: 16px;
}

.callout-aside {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-family: var(--mono);
  font-size: 12.5px;
}

.rule {
  display: grid;
  grid-template-columns: auto auto 1fr;
  grid-template-areas:
    "id pri action"
    "dom dom dom";
  gap: 4px 10px;
  align-items: center;
  background: rgba(6, 8, 13, 0.66);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 11px 13px;
}

.rule-id {
  grid-area: id;
  color: var(--muted-2);
}

.rule-pri {
  grid-area: pri;
  color: var(--muted-2);
}

.rule-action {
  grid-area: action;
  justify-self: end;
  padding: 2px 8px;
  border-radius: 5px;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.rule-action.allow {
  background: rgba(56, 211, 159, 0.16);
  color: var(--ok);
  border: 1px solid rgba(56, 211, 159, 0.35);
}

.rule-action.block {
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid rgba(255, 90, 69, 0.35);
}

.rule-dom {
  grid-area: dom;
  color: #cdd5e6;
}

/* ------------------------------------------------------------------ steps */

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.step-item {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 20px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.step-item:last-child {
  border-bottom: 1px solid var(--line);
}

.step-num {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--accent);
  font-family: var(--mono);
  font-size: 15px;
}

.step-item h3 {
  margin: 6px 0 8px;
  font-size: 19px;
  letter-spacing: -0.018em;
  font-weight: 640;
}

.step-item p {
  margin: 0;
  color: var(--muted);
  font-size: 15.5px;
  max-width: 68ch;
}

.copy-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: wrap;
}

.copy-row code {
  padding: 7px 11px;
  font-size: 13px;
}

.copy {
  font: inherit;
  font-size: 13px;
  font-weight: 560;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 7px 14px;
  cursor: pointer;
  transition:
    background 0.15s ease,
    border-color 0.15s ease,
    color 0.15s ease;
}

.copy:hover {
  border-color: rgba(255, 90, 69, 0.5);
  color: var(--accent);
}

.copy[data-state="done"] {
  color: var(--ok);
  border-color: rgba(56, 211, 159, 0.5);
}

/* ----------------------------------------------------------------- panels */

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px 26px;
}

.panel-warn {
  border-color: rgba(255, 176, 32, 0.3);
  background: linear-gradient(160deg, rgba(255, 176, 32, 0.07), transparent 70%);
}

.panel h3 {
  margin: 0 0 12px;
  font-size: 18.5px;
  letter-spacing: -0.018em;
  font-weight: 640;
}

.panel p {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 15.5px;
}

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

.panel a {
  color: var(--accent);
}

.panel ul {
  margin: 0 0 14px;
  padding-left: 20px;
  color: var(--muted);
  font-size: 15.5px;
}

.panel li {
  margin-bottom: 9px;
}

.fine {
  font-size: 13.5px !important;
  color: var(--muted-2) !important;
}

/* ------------------------------------------------------------------ scope */

.scope-note {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  background: var(--bg-raise);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  padding: 22px 24px;
}

.scope-label {
  flex: none;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(255, 90, 69, 0.3);
  border-radius: 6px;
  padding: 4px 9px;
  margin-top: 2px;
}

.scope-note p {
  margin: 0;
  color: var(--muted);
  font-size: 15.5px;
}

/* ---------------------------------------------------------------- policy */

.page-head h1 {
  margin: 0;
  font-size: clamp(32px, 4.6vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.032em;
  font-weight: 700;
}

.policy {
  max-width: 74ch;
  margin-top: 46px;
}

.policy h2 {
  margin: 38px 0 12px;
  font-size: 21px;
  letter-spacing: -0.018em;
  font-weight: 640;
}

.policy h2:first-child {
  margin-top: 0;
}

.policy p {
  margin: 0 0 15px;
  color: var(--muted);
  font-size: 16px;
}

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

.policy ul {
  margin: 0 0 15px;
  padding-left: 22px;
  color: var(--muted);
  font-size: 16px;
}

.policy li {
  margin-bottom: 10px;
}

.policy li:last-child {
  margin-bottom: 0;
}

.policy strong,
.policy em {
  color: var(--text);
  font-style: normal;
}

.policy a {
  color: var(--accent);
}

.policy .fine {
  margin-top: 22px;
}

/* ---------------------------------------------------------------- footer */

.footer {
  max-width: var(--max);
  margin: 60px auto 0;
  padding: 30px 28px 54px;
  border-top: 1px solid var(--line);
}

.footer p {
  margin: 0 0 6px;
  font-size: 14px;
  color: var(--muted);
}

.footer a {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
}

.footer a:hover {
  color: var(--accent);
  border-bottom-color: rgba(255, 90, 69, 0.5);
}

/* ---------------------------------------------------------------- reveal */

html.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition:
    opacity 0.6s cubic-bezier(0.22, 1, 0.36, 1),
    transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

html.js .reveal.in {
  opacity: 1;
  transform: none;
}

/* ----------------------------------------------------------- responsive */

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

  .callout {
    grid-template-columns: 1fr;
    gap: 28px;
    padding: 30px;
  }

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

@media (max-width: 620px) {
  .hero {
    padding: 44px 20px 54px;
  }

  .topbar,
  .section,
  .footer {
    padding-left: 20px;
    padding-right: 20px;
  }

  .facts {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .step-item {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .scope-note {
    flex-direction: column;
    gap: 12px;
  }
}

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

  html.js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .btn,
  .card {
    transition: none;
  }
}