/* ==========================================================================
   webdive — landing page
   Paleta e tipografia herdadas do app (frontend/src/styles.scss): ink/flame,
   Space Grotesk + Inter + JetBrains Mono. O motivo condutor é o próprio nome
   — "profundidade" organiza a hierarquia de recursos e vira a régua lateral.
   ========================================================================== */

/* ---- fontes (mesmos arquivos self-hosted do app, ver frontend/public/fonts) ---- */
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url('/fonts/space-grotesk-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Space Grotesk';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: url('/fonts/space-grotesk-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('/fonts/inter-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('/fonts/inter-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 100 800;
  font-display: swap;
  src: url('/fonts/jetbrains-mono-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 100 800;
  font-display: swap;
  src: url('/fonts/jetbrains-mono-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* ---- tokens ---- */
:root {
  --ink-950: #15121a;
  --ink-900: #1c1822;
  --ink-850: #241f2c;
  --ink-800: #2c2634;
  --paper-100: #f3eee7;
  --paper-100-70: rgb(243 238 231 / 70%);
  --paper-100-45: rgb(243 238 231 / 45%);
  --paper-100-15: rgb(243 238 231 / 15%);
  --paper-100-08: rgb(243 238 231 / 8%);

  --flame-500: #ff7a45;
  --flame-400: #ff9868;
  --flame-600: #e8632f;
  --flame-500-20: rgb(255 122 69 / 20%);
  --flame-500-12: rgb(255 122 69 / 12%);

  --signal-green: #4ade80;
  --signal-red: #f0576b;
  --signal-blue: #5865f2;

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;

  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --container: 1180px;
  --edge: clamp(20px, 5vw, 64px);

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---- reset ---- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
code { font-family: var(--font-mono); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  background: var(--ink-950);
  color: var(--paper-100);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* subtle depth gradient behind everything: darker as you'd scroll "deeper" */
body {
  background-image:
    radial-gradient(1200px 600px at 15% -10%, rgb(255 122 69 / 7%), transparent 60%),
    radial-gradient(900px 500px at 90% 15%, rgb(88 101 242 / 8%), transparent 55%);
  background-repeat: no-repeat;
}

:focus-visible {
  outline: 2px solid var(--flame-500);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

.skip-link {
  position: fixed;
  top: -60px;
  left: 12px;
  z-index: 200;
  background: var(--flame-500);
  color: var(--ink-950);
  padding: 10px 16px;
  border-radius: var(--r-sm);
  font-weight: 600;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 12px; }

h1, h2, h3 { font-family: var(--font-display); font-weight: 600; letter-spacing: -0.01em; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--flame-400);
  margin-bottom: 14px;
}

section { position: relative; padding: clamp(64px, 10vw, 128px) var(--edge); }

.section-head { max-width: 640px; margin: 0 auto 56px; text-align: left; }
.section-head h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); margin-bottom: 14px; }
.section-sub { color: var(--paper-100-70); font-size: 1.02rem; max-width: 52ch; }

/* ==========================================================================
   Depth rail — the signature element. Fixed on the left edge (desktop only);
   fills and reports "meters" as the page scrolls, echoing the dive metaphor.
   ========================================================================== */
.depth-rail {
  position: fixed;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
@media (min-width: 1100px) {
  .depth-rail { display: flex; }
}
.depth-rail__track {
  position: relative;
  width: 2px;
  height: 220px;
  background: var(--paper-100-15);
  border-radius: 2px;
}
.depth-rail__fill {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 0%;
  background: linear-gradient(var(--flame-500), var(--signal-blue));
  border-radius: 2px;
  transition: height 0.1s linear;
}
.depth-rail__marker {
  position: absolute;
  left: 50%;
  top: 0%;
  width: 9px; height: 9px;
  background: var(--paper-100);
  border-radius: 50%;
  box-shadow: 0 0 0 3px var(--ink-950), 0 0 10px var(--flame-500-20);
  transform: translate(-50%, -50%);
  transition: top 0.1s linear;
}
.depth-rail__readout {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--paper-100-45);
  letter-spacing: 0.04em;
}
.depth-rail__readout span { color: var(--paper-100-70); }

/* ==========================================================================
   Topbar
   ========================================================================== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgb(21 18 26 / 78%);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--paper-100-08);
}
.topbar__inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px var(--edge);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.wordmark { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 600; font-size: 1.15rem; }
.wordmark__icon { width: 28px; height: 28px; border-radius: var(--r-sm); flex-shrink: 0; }
.wordmark--sm { font-size: 1rem; }
.wordmark--sm .wordmark__icon { width: 22px; height: 22px; }

.topnav { display: none; gap: 32px; font-size: 0.92rem; color: var(--paper-100-70); }
.topnav a { transition: color 0.15s var(--ease); }
.topnav a:hover { color: var(--paper-100); }
@media (min-width: 760px) { .topnav { display: flex; } }

.topbar__actions { display: flex; align-items: center; gap: 10px; }
.topbar__actions .btn--ghost { display: none; }
@media (min-width: 760px) { .topbar__actions .btn--ghost { display: inline-flex; } }

.menu-toggle { display: flex; flex-direction: column; gap: 4px; padding: 8px; }
.menu-toggle span { width: 20px; height: 2px; background: var(--paper-100); border-radius: 2px; transition: transform 0.2s var(--ease), opacity 0.2s var(--ease); }
.menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
@media (min-width: 760px) { .menu-toggle { display: none; } }

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 8px var(--edge) 20px;
  border-bottom: 1px solid var(--paper-100-08);
}
.mobile-nav a:not(.btn) { padding: 10px 4px; color: var(--paper-100-70); border-radius: var(--r-sm); }
.mobile-nav a:not(.btn):hover { color: var(--paper-100); background: var(--paper-100-08); }
.mobile-nav .btn { margin-top: 8px; align-self: flex-start; }
.mobile-nav[hidden] { display: none; }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: var(--r-md);
  font-weight: 600;
  font-size: 0.94rem;
  white-space: nowrap;
  transition: transform 0.15s var(--ease), background 0.15s var(--ease), border-color 0.15s var(--ease), box-shadow 0.15s var(--ease);
}
.btn__icon { width: 18px; height: 18px; flex-shrink: 0; }
.btn--sm { padding: 8px 16px; font-size: 0.86rem; }
.btn--lg { padding: 14px 26px; font-size: 1rem; }

.btn--primary { background: var(--flame-500); color: var(--ink-950); box-shadow: 0 8px 24px -8px var(--flame-500-20); }
.btn--primary:hover { background: var(--flame-400); transform: translateY(-1px); }
.btn--primary:active { transform: translateY(0); }

.btn--secondary { background: var(--paper-100-08); color: var(--paper-100); border: 1px solid var(--paper-100-15); }
.btn--secondary:hover { background: var(--paper-100-15); transform: translateY(-1px); }

.btn--ghost { border: 1px solid var(--paper-100-15); color: var(--paper-100); }
.btn--ghost:hover { border-color: var(--flame-500); color: var(--flame-400); }

.btn--disabled {
  background: transparent;
  border: 1px dashed var(--paper-100-15);
  color: var(--paper-100-45);
  cursor: not-allowed;
}
.btn--disabled em { font-style: normal; font-family: var(--font-mono); font-size: 0.72rem; padding: 3px 8px; background: var(--paper-100-08); border-radius: 999px; margin-left: 2px; }

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 8px; }
.cta-note { margin-top: 16px; font-size: 0.84rem; color: var(--paper-100-45); font-family: var(--font-mono); }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { padding-top: clamp(56px, 9vw, 96px); overflow: hidden; }
.hero__inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 56px;
  align-items: center;
}
@media (min-width: 980px) {
  .hero__inner { grid-template-columns: 1.05fr 1fr; gap: 40px; }
}

.hero__title {
  font-size: clamp(2.6rem, 6.4vw, 4.6rem);
  line-height: 0.98;
  margin-bottom: 22px;
}
.hero__sub { color: var(--paper-100-70); font-size: 1.08rem; max-width: 46ch; margin-bottom: 32px; }

.hero__rings { position: absolute; inset: 0; pointer-events: none; z-index: 0; }
.ring {
  position: absolute;
  right: 6%;
  top: 42%;
  border: 1px solid var(--flame-500-12);
  border-radius: 50%;
  transform: translate(50%, -50%);
  animation: ripple 6s var(--ease) infinite;
}
.ring--1 { width: 320px; height: 320px; animation-delay: 0s; }
.ring--2 { width: 320px; height: 320px; animation-delay: 2s; }
.ring--3 { width: 320px; height: 320px; animation-delay: 4s; }
@keyframes ripple {
  0% { width: 140px; height: 140px; opacity: 0.9; }
  100% { width: 560px; height: 560px; opacity: 0; }
}

/* ---- hero product mock ---- */
.hero__art { position: relative; z-index: 1; }
.mock {
  background: var(--ink-900);
  border: 1px solid var(--paper-100-08);
  border-radius: var(--r-lg);
  box-shadow: 0 40px 80px -30px rgb(0 0 0 / 60%);
  display: grid;
  grid-template-columns: 56px 150px 1fr;
  min-height: 340px;
  overflow: hidden;
}
.mock__rail { background: var(--ink-950); display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 16px 0; }
.mock__server { width: 34px; height: 34px; border-radius: 14px; background: var(--paper-100-08); }
.mock__server--active { background: var(--flame-500-20); border: 1px solid var(--flame-500); border-radius: 12px; }
.mock__server-add { width: 34px; height: 34px; border-radius: 50%; border: 1px dashed var(--paper-100-15); display: flex; align-items: center; justify-content: center; color: var(--paper-100-45); font-size: 1.1rem; }

.mock__channels { background: var(--ink-850); padding: 16px 12px; border-right: 1px solid var(--paper-100-08); }
.mock__chan-label { font-family: var(--font-mono); font-size: 0.62rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--paper-100-45); margin: 12px 0 6px; }
.mock__chan-label:first-child { margin-top: 0; }
.mock__chan { font-size: 0.82rem; color: var(--paper-100-45); padding: 6px 8px; border-radius: var(--r-sm); margin-bottom: 2px; }
.mock__chan--active { background: var(--paper-100-08); color: var(--paper-100); }
.mock__voice { font-size: 0.78rem; color: var(--paper-100-70); display: flex; align-items: center; gap: 6px; padding: 8px; margin-top: 4px; }
.mock__avatars { display: flex; margin-left: auto; }
.mock__avatars i { width: 14px; height: 14px; border-radius: 50%; background: var(--signal-blue); border: 2px solid var(--ink-850); margin-left: -6px; display: block; }

.mock__main { padding: 18px; display: flex; flex-direction: column; gap: 16px; justify-content: flex-end; }
.mock__msg { display: flex; gap: 10px; }
.mock__avatar { width: 30px; height: 30px; border-radius: 50%; flex-shrink: 0; margin-top: 2px; }
.mock__msg-head { display: flex; align-items: baseline; gap: 8px; font-size: 0.82rem; margin-bottom: 2px; }
.mock__msg-head time { font-family: var(--font-mono); font-size: 0.68rem; color: var(--paper-100-45); }
.mock__msg-body { font-size: 0.86rem; color: var(--paper-100-70); }
.mock__mention { background: var(--flame-500-12); color: var(--flame-400); padding: 1px 6px; border-radius: 4px; }

.mock__call { margin-top: 4px; background: var(--paper-100-08); border-radius: var(--r-md); padding: 12px; }
.mock__call-row { display: flex; align-items: center; gap: 8px; font-size: 0.76rem; color: var(--paper-100-70); font-family: var(--font-mono); }
.mock__wave { display: flex; align-items: center; gap: 2px; margin-left: auto; }
.mock__wave i { width: 2px; height: 8px; background: var(--signal-green); border-radius: 2px; animation: wave 1.1s ease-in-out infinite; }
.mock__wave i:nth-child(2) { height: 14px; animation-delay: 0.1s; }
.mock__wave i:nth-child(3) { height: 6px; animation-delay: 0.2s; }
.mock__wave i:nth-child(4) { height: 16px; animation-delay: 0.3s; }
.mock__wave i:nth-child(5) { height: 9px; animation-delay: 0.4s; }
@keyframes wave { 0%, 100% { transform: scaleY(0.6); } 50% { transform: scaleY(1); } }
.mock__call-tiles { display: flex; gap: 8px; margin-top: 10px; }
.mock__tile { width: 44px; height: 32px; border-radius: var(--r-sm); opacity: 0.85; }

.dot { display: inline-block; width: 7px; height: 7px; border-radius: 50%; }
.dot--green { background: var(--signal-green); box-shadow: 0 0 0 3px rgb(74 222 128 / 18%); }
.dot--red { background: var(--signal-red); }

@media (max-width: 640px) {
  .mock { grid-template-columns: 44px 1fr; min-height: 300px; }
  .mock__channels { display: none; }
}

/* ==========================================================================
   Depths (feature) section
   ========================================================================== */
.depths { background: linear-gradient(180deg, transparent, rgb(0 0 0 / 12%) 40%, transparent); }

.depth-list {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--paper-100-08);
  border: 1px solid var(--paper-100-08);
  border-radius: var(--r-lg);
  overflow: hidden;
}
@media (min-width: 760px) {
  .depth-list { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1100px) {
  .depth-list { grid-template-columns: repeat(4, 1fr); }
}

.depth-card {
  background: var(--ink-900);
  padding: 28px 24px;
  transition: background 0.2s var(--ease);
}
.depth-card:hover { background: var(--ink-850); }
.depth-card__mark { display: flex; align-items: baseline; gap: 8px; margin-bottom: 16px; }
.depth-card__mark span { font-family: var(--font-mono); font-size: 1.4rem; color: var(--flame-400); font-weight: 500; }
.depth-card__mark small { font-family: var(--font-mono); font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--paper-100-45); }
.depth-card h3 { font-size: 1.08rem; margin-bottom: 10px; }
.depth-card p { font-size: 0.88rem; color: var(--paper-100-70); line-height: 1.6; }
.depth-card code { background: var(--paper-100-08); padding: 1px 5px; border-radius: 4px; font-size: 0.82em; color: var(--paper-100); }

/* ==========================================================================
   Tech section
   ========================================================================== */
.tech__inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}
@media (min-width: 900px) {
  .tech__inner { grid-template-columns: 1fr 1fr; }
}
.tech h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); margin-bottom: 14px; }

.tech-list { display: flex; flex-direction: column; gap: 14px; margin-top: 28px; }
.tech-list li { display: flex; align-items: baseline; gap: 12px; font-size: 0.94rem; color: var(--paper-100-70); border-top: 1px solid var(--paper-100-08); padding-top: 14px; }
.tech-list li:first-child { border-top: none; padding-top: 0; }
.tech-list__tag { font-family: var(--font-mono); font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--flame-400); background: var(--flame-500-12); padding: 3px 8px; border-radius: 5px; flex-shrink: 0; }

.panel { background: var(--ink-900); border: 1px solid var(--paper-100-08); border-radius: var(--r-lg); overflow: hidden; box-shadow: 0 30px 60px -30px rgb(0 0 0 / 55%); }
.panel__bar { display: flex; gap: 6px; padding: 12px 14px; border-bottom: 1px solid var(--paper-100-08); }
.panel__bar span { width: 10px; height: 10px; border-radius: 50%; background: var(--paper-100-15); }
.panel__bar span:nth-child(1) { background: var(--signal-red); opacity: 0.7; }
.panel__body {
  margin: 0;
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  line-height: 2;
  color: var(--paper-100-70);
  white-space: pre;
  overflow-x: auto;
}
.p-dim { color: var(--paper-100-45); }
.p-ok { color: var(--signal-green); }
.p-accent { color: var(--flame-400); }
.p-blue { color: var(--signal-blue); }

/* ==========================================================================
   Download section
   ========================================================================== */
.download-grid {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
@media (min-width: 760px) {
  .download-grid { grid-template-columns: repeat(3, 1fr); }
}

.dl-card {
  position: relative;
  background: var(--ink-900);
  border: 1px solid var(--paper-100-08);
  border-radius: var(--r-lg);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.dl-card--featured { border-color: var(--flame-500-20); background: linear-gradient(160deg, var(--ink-900), var(--ink-850)); }
.dl-card--soon { opacity: 0.82; }
.dl-card__icon { width: 30px; height: 30px; color: var(--flame-400); margin-bottom: 4px; }
.dl-card--soon .dl-card__icon { color: var(--paper-100-45); }
.dl-card h3 { font-size: 1.15rem; }
.dl-card p { font-size: 0.88rem; color: var(--paper-100-70); flex-grow: 1; }
.dl-card .btn { align-self: flex-start; margin-top: 8px; }

.dl-card__badge { position: absolute; top: 22px; right: 22px; font-family: var(--font-mono); font-size: 0.64rem; text-transform: uppercase; letter-spacing: 0.05em; padding: 4px 9px; border-radius: 999px; }
.dl-card__badge--live { color: var(--signal-green); background: rgb(74 222 128 / 12%); }
.dl-card__badge--soon { color: var(--paper-100-45); background: var(--paper-100-08); }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer { padding: 40px var(--edge) 48px; border-top: 1px solid var(--paper-100-08); }
.site-footer__inner {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 28px;
}
.site-footer__tag { font-size: 0.86rem; color: var(--paper-100-45); font-family: var(--font-mono); }
.site-footer__link { margin-left: auto; font-size: 0.88rem; color: var(--paper-100-70); transition: color 0.15s var(--ease); }
.site-footer__link:hover { color: var(--flame-400); }

/* ---- reveal-on-scroll (progressive enhancement, see app.js) ---- */
[data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); }
[data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; }
}

/* ==========================================================================
   COMPARAÇÃO — mesmo padrão visual do .tech-list, seção separada.
   ========================================================================== */
.compare-list { max-width: var(--container); margin: 28px auto 0; }

/* ==========================================================================
   FAQ — <details>/<summary> nativos: sem JS, acessível, e cada resposta
   já chega renderizada no HTML (bom pra indexação, não só pra quem clica).
   ========================================================================== */
.faq-list {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.faq-item {
  border: 1px solid var(--paper-100-08);
  border-radius: var(--r-md);
  padding: 4px 20px;
  transition: border-color 0.15s var(--ease), background 0.15s var(--ease);
}
.faq-item:hover { border-color: var(--paper-100-15); }
.faq-item[open] { background: var(--paper-100-08); }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 28px 18px 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.01rem;
  position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 16px;
  font-size: 1.3rem;
  color: var(--flame-400);
  transition: transform 0.2s var(--ease);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { color: var(--paper-100-70); font-size: 0.95rem; padding-bottom: 20px; max-width: 62ch; }