/* ============================================================
   Blinq — styles.css
   Tokens da marca incorporados + design system do site.
   Mobile-first · breakpoints 480 / 768 / 1100
   ============================================================ */

/* ---------- Tokens (de /brand/tokens.css) ---------- */
:root {
  --blinq-green-300: #6BF5A8;
  --blinq-green-400: #3BEF8B;
  --blinq-green-500: #2EE87C;
  --blinq-green-600: #1CB862;
  --blinq-green-700: #17A85B;
  --blinq-green-800: #0E7A40;
  --blinq-cyan-400: #38E5D8;
  --blinq-cyan-500: #1FCDC0;
  --blinq-ink-950: #070B09;
  --blinq-ink-900: #0B120E;
  --blinq-ink-850: #101813;
  --blinq-ink-800: #16211A;
  --blinq-ink-700: #1F2D25;
  --blinq-ink-600: #2C3E33;
  --blinq-gray-400: #6E7F75;
  --blinq-gray-300: #9BABA1;
  --blinq-gray-200: #C6D2CB;
  --blinq-gray-100: #EAF4EE;
  --blinq-white: #FFFFFF;
  --blinq-danger: #F4655F;
  --blinq-warning: #F0B24A;
  --blinq-info: #5AA7F0;
  --blinq-success: var(--blinq-green-500);

  --bg: var(--blinq-ink-900);
  --bg-deep: var(--blinq-ink-950);
  --surface: var(--blinq-ink-850);
  --surface-raised: var(--blinq-ink-800);
  --border: var(--blinq-ink-700);
  --border-hover: var(--blinq-ink-600);
  --text: var(--blinq-gray-100);
  --text-secondary: var(--blinq-gray-300);
  --text-muted: #7E9086; /* clareado p/ WCAG AA: ~5.2:1 sobre --bg, ~4.7:1 sobre --surface-raised */
  --text-on-accent: var(--blinq-ink-950);
  --accent: var(--blinq-green-500);
  --accent-hover: var(--blinq-green-400);
  --accent-active: var(--blinq-green-600);
  --accent-soft: rgba(46, 232, 124, 0.12);
  --accent-ring: rgba(46, 232, 124, 0.45);
  --accent-2: var(--blinq-cyan-400);
  --gradient-accent: linear-gradient(135deg, var(--blinq-green-400), var(--blinq-green-600));
  --gradient-glow: radial-gradient(ellipse at 50% -20%, rgba(46,232,124,0.16), transparent 60%);

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, "Noto Sans", sans-serif,
               "Apple Color Emoji", "Segoe UI Emoji";
  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas,
               "Liberation Mono", monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-md: 1.125rem;
  --text-lg: 1.375rem;
  --text-xl: 1.75rem;
  --text-2xl: 2.25rem;
  --text-3xl: 3rem;
  --text-4xl: 3.75rem;
  --leading-tight: 1.1;
  --leading-snug: 1.3;
  --leading-normal: 1.6;
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;
  --weight-bold: 700;
  --tracking-tight: -0.02em;
  --tracking-wide: 0.08em;

  --space-1: 0.25rem;  --space-2: 0.5rem;  --space-3: 0.75rem;
  --space-4: 1rem;     --space-5: 1.5rem;  --space-6: 2rem;
  --space-7: 3rem;     --space-8: 4rem;    --space-9: 6rem;  --space-10: 8rem;

  --radius-xs: 4px; --radius-sm: 8px; --radius-md: 12px;
  --radius-lg: 16px; --radius-xl: 24px; --radius-full: 999px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.45);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 24px rgba(46,232,124,0.25);
  --shadow-glow-strong: 0 0 48px rgba(46,232,124,0.35);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 120ms;
  --duration-normal: 220ms;

  --header-h: 64px;

  color-scheme: dark;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 12px); }
body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul, ol { list-style: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: var(--radius-xs); }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--accent); color: var(--text-on-accent);
  padding: var(--space-2) var(--space-4); border-radius: 0 0 var(--radius-sm) 0;
  font-weight: var(--weight-semibold);
}
.skip-link:focus { left: 0; }

/* ---------- Layout base ---------- */
.container { width: 100%; max-width: 1160px; margin-inline: auto; padding-inline: var(--space-4); }
@media (min-width: 768px) { .container { padding-inline: var(--space-6); } }

.section { padding-block: var(--space-8); }
@media (min-width: 768px) { .section { padding-block: var(--space-9); } }
.section--deep { background: var(--bg-deep); }

.overline {
  font-size: var(--text-xs); font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide); text-transform: uppercase;
  color: var(--accent); margin-bottom: var(--space-3);
}
.section__title {
  font-size: var(--text-xl); font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight); line-height: var(--leading-tight);
  max-width: 26ch; margin-bottom: var(--space-4);
}
@media (min-width: 768px) { .section__title { font-size: var(--text-2xl); } }
.section__sub { color: var(--text-secondary); max-width: 52ch; margin-bottom: var(--space-6); }

/* ---------- Botões ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  font-weight: var(--weight-semibold); font-size: var(--text-base);
  padding: 0.7rem 1.25rem; border-radius: var(--radius-md);
  transition: background var(--duration-normal) var(--ease-out),
              color var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out),
              transform var(--duration-fast) var(--ease-out);
  white-space: nowrap;
  max-width: 100%;
}
.btn:active { transform: translateY(1px); }
.btn .ico { width: 20px; height: 20px; flex: none; }

.btn--primary {
  background: var(--gradient-accent);
  color: var(--text-on-accent);
  box-shadow: var(--shadow-sm);
}
.btn--primary:hover,
.btn--primary:focus-visible { box-shadow: var(--shadow-glow); filter: brightness(1.07); }
.btn--glow { box-shadow: var(--shadow-glow); }
.btn--glow:hover { box-shadow: var(--shadow-glow-strong); }

.btn--ghost { color: var(--text); border: 1px solid var(--border); background: transparent; }
.btn--ghost:hover { border-color: var(--border-hover); background: var(--surface); }
.btn--ghost:focus-visible { border-color: var(--accent); }

.btn--outline { color: var(--accent); border: 1px solid var(--border); background: transparent; }
.btn--outline:hover { border-color: var(--accent); background: var(--accent-soft); }
.btn--outline:focus-visible { border-color: var(--accent); }

.btn--lg { padding: 0.9rem 1.6rem; font-size: var(--text-md); border-radius: var(--radius-md); }
.btn--sm { padding: 0.45rem 0.95rem; font-size: var(--text-sm); }

@media (max-width: 479px) {
  .btn--lg { white-space: normal; text-align: center; width: 100%; }
  .hero__actions { flex-direction: column; align-items: stretch; }
}

/* ---------- Header ---------- */
.header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--blinq-ink-950) 82%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header__inner { display: flex; align-items: center; justify-content: space-between; min-height: var(--header-h); }
.header__logo { color: var(--text); }
.header__logo svg { height: 30px; width: auto; }

.header__nav {
  position: fixed; inset: var(--header-h) 0 auto 0; z-index: 49;
  display: flex; flex-direction: column; gap: var(--space-2);
  background: var(--blinq-ink-950);
  border-bottom: 1px solid var(--border);
  padding: var(--space-4);
  transform: translateY(-12px); opacity: 0; visibility: hidden; pointer-events: none;
  transition: transform var(--duration-normal) var(--ease-out),
              opacity var(--duration-normal) var(--ease-out),
              visibility 0s linear var(--duration-normal);
}
.header__nav.is-open {
  transform: none; opacity: 1; visibility: visible; pointer-events: auto;
  transition-delay: 0s;
}
.header__nav a:not(.btn) {
  color: var(--text-secondary); font-weight: var(--weight-medium);
  padding: var(--space-2) var(--space-2); border-radius: var(--radius-sm);
  transition: color var(--duration-fast) var(--ease-out);
}
.header__nav a:not(.btn):hover { color: var(--text); }
.header__cta { margin-top: var(--space-2); }

.header__burger {
  display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
  width: 44px; height: 44px; padding: 10px; border-radius: var(--radius-sm);
}
.header__burger span {
  display: block; height: 2px; width: 100%; border-radius: 2px;
  background: var(--text); transition: transform var(--duration-normal) var(--ease-out), opacity var(--duration-fast);
}
.header__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.header__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (min-width: 768px) {
  .header__burger { display: none; }
  .header__nav {
    position: static; flex-direction: row; align-items: center; gap: var(--space-5);
    background: transparent; border: 0; padding: 0;
    transform: none; opacity: 1; visibility: visible; pointer-events: auto;
  }
  .header__nav a:not(.btn) { font-size: var(--text-sm); padding: var(--space-1); }
  .header__cta { margin: 0; }
}

/* ---------- Hero ---------- */
.hero { position: relative; background: var(--bg-deep); overflow: hidden; }
.hero__glow {
  position: absolute; inset: 0; pointer-events: none;
  background: var(--gradient-glow);
}
.hero__grid {
  position: relative;
  display: grid; gap: var(--space-7);
  padding-block: var(--space-8) var(--space-8);
}
@media (min-width: 1100px) {
  .hero__grid {
    grid-template-columns: 1.05fr 0.95fr; align-items: center;
    padding-block: var(--space-9) var(--space-9); gap: var(--space-8);
  }
}

.hero__title {
  font-size: clamp(2rem, 5.4vw + 1rem, 3.75rem);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
  margin-bottom: var(--space-5);
  max-width: 16ch;
}
.hero__mark { position: relative; color: var(--accent); white-space: nowrap; }
@media (max-width: 479px) { .hero__mark { white-space: normal; } }
.hero__spark {
  position: absolute; right: -0.65em; bottom: -0.28em;
  width: 0.42em; height: auto; color: var(--blinq-green-400);
  filter: drop-shadow(0 0 10px rgba(46,232,124,0.55));
  animation: spark-blink 3.2s var(--ease-out) infinite;
}
@keyframes spark-blink {
  0%, 88%, 100% { opacity: 1; }
  92%, 96% { opacity: 0.25; }
}
.hero__sub {
  font-size: var(--text-md); color: var(--text-secondary);
  max-width: 48ch; margin-bottom: var(--space-6);
}
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-bottom: var(--space-6); }
.hero__proof { display: flex; flex-wrap: wrap; gap: var(--space-3) var(--space-5); }
.hero__proof li {
  position: relative; padding-left: 1.35rem;
  font-size: var(--text-sm); color: var(--text-muted);
}
.hero__proof li::before {
  content: ""; position: absolute; left: 0; top: 0.32em;
  width: 0.85em; height: 0.85em; border-radius: var(--radius-full);
  background: var(--accent-soft);
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path d="M4 8.5 7 11.5 12 5" fill="none" stroke="%232EE87C" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/></svg>');
  background-size: 70%; background-position: center; background-repeat: no-repeat;
}

/* ---------- Mockup de chat ---------- */
.hero__mockup { max-width: 460px; width: 100%; margin-inline: auto; }
@media (min-width: 1100px) { .hero__mockup { margin-inline: 0 auto; } }

.chat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg), 0 0 64px rgba(46,232,124,0.07);
  overflow: hidden;
}
.chat__header {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--surface-raised);
  border-bottom: 1px solid var(--border);
}
.chat__avatar {
  flex: none; display: grid; place-items: center;
  width: 38px; height: 38px; border-radius: var(--radius-full);
  background: var(--accent-soft); color: var(--accent);
}
.chat__peer { display: flex; flex-direction: column; min-width: 0; }
.chat__peer strong { font-size: var(--text-sm); font-weight: var(--weight-semibold); }
.chat__peer span {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-size: var(--text-xs); color: var(--text-secondary);
}
.chat__dot {
  width: 7px; height: 7px; border-radius: var(--radius-full);
  background: var(--accent); box-shadow: 0 0 8px var(--accent);
  animation: dot-pulse 2s ease-in-out infinite;
}
@keyframes dot-pulse { 50% { opacity: 0.45; } }
.chat__pill {
  margin-left: auto; flex: none;
  font-size: var(--text-xs); font-weight: var(--weight-medium);
  color: var(--accent); background: var(--accent-soft);
  padding: 0.25rem 0.6rem; border-radius: var(--radius-full);
}
@media (max-width: 479px) { .chat__pill { display: none; } }

.chat__body {
  display: flex; flex-direction: column; gap: var(--space-3);
  padding: var(--space-4);
  background:
    radial-gradient(circle at 20% 10%, rgba(46,232,124,0.04), transparent 42%),
    var(--blinq-ink-900);
  min-height: 380px;
}
.chat__day {
  align-self: center; font-size: var(--text-xs); color: var(--text-muted);
  background: var(--surface-raised); border: 1px solid var(--border);
  padding: 0.15rem 0.7rem; border-radius: var(--radius-full);
}

.msg {
  position: relative; max-width: 82%;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm); line-height: var(--leading-snug);
  box-shadow: var(--shadow-sm);
}
.msg p { display: inline; }
.msg time {
  display: inline-flex; align-items: center; gap: 3px;
  font-size: var(--text-xs); color: var(--text-muted);
  margin-left: 0.5rem; vertical-align: bottom; transform: translateY(2px);
}
.msg__check { width: 14px; height: 10px; color: var(--blinq-info); }
.msg--in {
  align-self: flex-start;
  background: var(--surface-raised);
  border: 1px solid var(--border);
  border-bottom-left-radius: var(--radius-xs);
}
.msg--out {
  align-self: flex-end;
  background: linear-gradient(135deg, rgba(46,232,124,0.16), rgba(28,184,98,0.13));
  border: 1px solid rgba(46,232,124,0.22);
  border-bottom-right-radius: var(--radius-xs);
}
.msg__author {
  display: block; font-size: var(--text-xs); font-weight: var(--weight-semibold);
  color: var(--accent); margin-bottom: 2px;
}
.msg__author--ia::before {
  content: "✦ "; color: var(--accent-2);
}

.chat__tags { display: flex; gap: var(--space-2); align-self: flex-start; }
.tag {
  font-size: var(--text-xs); font-weight: var(--weight-medium);
  color: var(--text-secondary);
  background: var(--surface-raised); border: 1px solid var(--border);
  padding: 0.15rem 0.6rem; border-radius: var(--radius-full);
}
.tag--green { color: var(--accent); background: var(--accent-soft); border-color: rgba(46,232,124,0.25); }

.chat__handoff {
  align-self: center; text-align: center;
  font-size: var(--text-xs); color: var(--text-muted);
  display: flex; align-items: center; gap: var(--space-2);
  width: 100%;
}
.chat__handoff::before, .chat__handoff::after {
  content: ""; flex: 1; height: 1px; background: var(--border);
}
.chat__handoff strong { color: var(--text-secondary); font-weight: var(--weight-semibold); }

.typing { display: inline-flex; gap: 4px; padding: 2px 4px; }
.typing i {
  width: 6px; height: 6px; border-radius: var(--radius-full);
  background: var(--text-muted);
  animation: typing 1.2s ease-in-out infinite;
}
.typing i:nth-child(2) { animation-delay: 0.15s; }
.typing i:nth-child(3) { animation-delay: 0.3s; }
@keyframes typing { 0%, 60%, 100% { transform: none; opacity: 0.5; } 30% { transform: translateY(-4px); opacity: 1; } }

/* mensagens chegando (anima uma vez, escalonado por --d) */
.chat .msg, .chat__tags, .chat__handoff {
  opacity: 0; transform: translateY(10px) scale(0.98);
  animation: msg-in 0.5s var(--ease-out) forwards;
  animation-delay: var(--d, 0s);
}
@keyframes msg-in { to { opacity: 1; transform: none; } }

/* ---------- Barra de dor ---------- */
.pains { border-bottom: 1px solid var(--border); padding-block: var(--space-8); }
.pains__intro {
  font-size: var(--text-md); font-weight: var(--weight-regular);
  color: var(--text-secondary);
  max-width: 46ch; margin-bottom: var(--space-6);
}
.pains__grid { display: grid; gap: var(--space-5); }
@media (min-width: 768px) { .pains__grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-6); } }
.pain__ico { width: 28px; height: 28px; color: var(--blinq-danger); margin-bottom: var(--space-3); opacity: 0.9; }
.pain h3 { font-size: var(--text-base); font-weight: var(--weight-semibold); margin-bottom: var(--space-1); }
.pain p { font-size: var(--text-sm); color: var(--text-secondary); max-width: 34ch; }

/* ---------- Features ---------- */
.features__grid { display: grid; gap: var(--space-4); margin-top: var(--space-6); }
@media (min-width: 768px) { .features__grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-5); } }
@media (min-width: 1100px) { .features__grid { grid-template-columns: repeat(3, 1fr); } }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: border-color var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}
.card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.card__ico {
  display: grid; place-items: center;
  width: 44px; height: 44px; border-radius: var(--radius-md);
  background: var(--accent-soft); color: var(--accent);
  margin-bottom: var(--space-4);
}
.card__ico svg { width: 24px; height: 24px; }
.card h3 { font-size: var(--text-md); font-weight: var(--weight-semibold); margin-bottom: var(--space-2); }
.card p { font-size: var(--text-sm); color: var(--text-secondary); }

.features__more {
  margin-top: var(--space-6);
  padding: var(--space-4) var(--space-5);
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--text-secondary);
  font-size: var(--text-sm);
  max-width: 62ch;
}

/* ---------- Como funciona ---------- */
.steps__grid {
  display: grid; gap: var(--space-6);
  margin-top: var(--space-6);
  counter-reset: step;
}
@media (min-width: 768px) { .steps__grid { grid-template-columns: repeat(3, 1fr); } }
.step { position: relative; padding-top: var(--space-2); }
.step__num {
  display: inline-grid; place-items: center;
  width: 40px; height: 40px; border-radius: var(--radius-full);
  background: var(--gradient-accent); color: var(--text-on-accent);
  font-weight: var(--weight-bold); font-size: var(--text-md);
  margin-bottom: var(--space-4);
  box-shadow: var(--shadow-sm);
}
@media (min-width: 768px) {
  .step:not(:last-child)::after {
    content: ""; position: absolute; top: calc(var(--space-2) + 20px);
    left: 56px; right: calc(-1 * var(--space-6) + 8px); height: 1px;
    background: linear-gradient(90deg, var(--border-hover), transparent);
  }
}
.step h3 { font-size: var(--text-md); font-weight: var(--weight-semibold); margin-bottom: var(--space-2); }
.step p { font-size: var(--text-sm); color: var(--text-secondary); max-width: 38ch; }
.steps__cta { margin-top: var(--space-7); }

/* ---------- Seção IA ---------- */
.ai__grid { display: grid; gap: var(--space-7); }
@media (min-width: 1100px) { .ai__grid { grid-template-columns: 1.1fr 0.9fr; align-items: center; gap: var(--space-8); } }
.ai__copy p { color: var(--text-secondary); max-width: 54ch; margin-bottom: var(--space-4); }
.ai__bullets { margin: var(--space-5) 0 var(--space-6); display: grid; gap: var(--space-3); }
.ai__bullets li {
  position: relative; padding-left: 1.75rem; color: var(--text);
  font-size: var(--text-base);
}
.ai__bullets li::before {
  content: ""; position: absolute; left: 0; top: 0.18em;
  width: 1.15em; height: 1.15em; border-radius: var(--radius-full);
  background: var(--accent-soft);
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path d="M4 8.5 7 11.5 12 5" fill="none" stroke="%232EE87C" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/></svg>');
  background-size: 68%; background-position: center; background-repeat: no-repeat;
}

.ai__visual {
  position: relative;
  display: flex; flex-direction: column; gap: var(--space-4);
  background: var(--bg-deep);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  overflow: hidden;
}
.ai__visual::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse at 80% 0%, rgba(46,232,124,0.09), transparent 55%);
  pointer-events: none;
}
.ai__clock { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-3); }
.ai__time {
  font-family: var(--font-mono); font-size: var(--text-2xl);
  font-weight: var(--weight-semibold); letter-spacing: var(--tracking-tight);
  color: var(--text);
}
.ai__status {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-size: var(--text-xs); color: var(--accent);
}
.msg--float { position: relative; z-index: 1; }
.ai__visual .msg--in { align-self: flex-start; }
.ai__visual .msg--out { align-self: flex-end; }
.ai__visual .msg {
  opacity: 0; transform: translateY(10px) scale(0.98);
  animation: msg-in 0.5s var(--ease-out) forwards;
  animation-delay: var(--d, 0.2s);
}
.ai__metric {
  display: flex; align-items: center; gap: var(--space-4);
  margin-top: var(--space-2); padding-top: var(--space-4);
  border-top: 1px solid var(--border);
}
.ai__metric strong {
  font-size: var(--text-3xl); font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight); color: var(--accent);
  line-height: 1;
}
.ai__metric span { font-size: var(--text-sm); color: var(--text-secondary); max-width: 24ch; }

/* ---------- Planos ---------- */
.plans__grid { display: grid; gap: var(--space-5); margin-top: var(--space-6); align-items: start; }
@media (min-width: 768px) { .plans__grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-4); } }
@media (min-width: 1100px) { .plans__grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-5); } }

.plan {
  position: relative;
  display: flex; flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: var(--space-6) var(--space-5);
  transition: border-color var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
}
.plan:hover { border-color: var(--border-hover); transform: translateY(-3px); }
.plan--featured {
  background: var(--surface-raised);
  border-color: rgba(46,232,124,0.35);
  box-shadow: 0 0 40px rgba(46,232,124,0.08), var(--shadow-md);
}
.plan--featured:hover { border-color: var(--accent); }
.plan__badge {
  position: absolute; top: calc(-1 * var(--space-3)); left: var(--space-5);
  font-size: var(--text-xs); font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide); text-transform: uppercase;
  background: var(--gradient-accent); color: var(--text-on-accent);
  padding: 0.3rem 0.8rem; border-radius: var(--radius-full);
}
.plan h3 { font-size: var(--text-lg); font-weight: var(--weight-bold); letter-spacing: var(--tracking-tight); }
.plan__tagline { font-size: var(--text-sm); color: var(--text-secondary); margin: var(--space-1) 0 var(--space-5); }
.plan__list { display: grid; gap: var(--space-3); margin-bottom: var(--space-6); }
.plan__list li {
  position: relative; padding-left: 1.6rem;
  font-size: var(--text-sm); color: var(--text-secondary);
}
.plan__list li::before {
  content: ""; position: absolute; left: 0; top: 0.2em;
  width: 1em; height: 1em;
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16"><path d="M3 8.5 6.5 12 13 4.5" fill="none" stroke="%232EE87C" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/></svg>');
  background-size: contain; background-repeat: no-repeat; background-position: center;
}
.plan__cta { margin-top: auto; width: 100%; }

/* ---------- FAQ ---------- */
.faq__wrap { max-width: 780px; }
.faq__list { margin-top: var(--space-5); border-top: 1px solid var(--border); }
.faq__item { border-bottom: 1px solid var(--border); }
.faq__item h3 { font-size: inherit; font-weight: inherit; }
.faq__q {
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  width: 100%; text-align: left;
  padding: var(--space-4) var(--space-1);
  font-size: var(--text-base); font-weight: var(--weight-semibold);
  color: var(--text);
  transition: color var(--duration-fast) var(--ease-out);
}
.faq__q:hover { color: var(--accent); }
.faq__chevron {
  flex: none; width: 16px; height: 16px; color: var(--text-muted);
  transition: transform var(--duration-normal) var(--ease-out);
}
.faq__q[aria-expanded="true"] .faq__chevron { transform: rotate(180deg); color: var(--accent); }
.faq__a { overflow: hidden; }
.faq__a > div { padding: 0 var(--space-1) var(--space-4); }
.faq__a p { color: var(--text-secondary); max-width: 62ch; }
.faq__a.is-animating { transition: height var(--duration-normal) var(--ease-out); }

/* ---------- CTA final ---------- */
.final { position: relative; overflow: hidden; text-align: center; }
.final__glow {
  position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(ellipse at 50% 120%, rgba(46,232,124,0.14), transparent 60%);
}
.final__inner { position: relative; display: grid; justify-items: center; gap: var(--space-5); }
.final__title {
  font-size: clamp(1.75rem, 4vw + 0.8rem, 3rem);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight); line-height: var(--leading-tight);
}
.final__body { color: var(--text-secondary); max-width: 52ch; font-size: var(--text-md); }
.final__micro { font-size: var(--text-sm); color: var(--text-muted); margin-top: var(--space-3); }

/* ---------- Footer ---------- */
.footer { background: var(--bg-deep); border-top: 1px solid var(--border); padding-block: var(--space-7) var(--space-5); }
.footer__grid { display: grid; gap: var(--space-6); }
@media (min-width: 768px) { .footer__grid { grid-template-columns: 1.2fr 0.8fr; align-items: start; } }
.footer__brand { color: var(--text); }
.footer__brand svg { height: 28px; width: auto; margin-bottom: var(--space-4); }
.footer__sign { font-weight: var(--weight-semibold); margin-bottom: var(--space-2); }
.footer__desc { font-size: var(--text-sm); color: var(--text-secondary); max-width: 46ch; }
.footer__nav { display: flex; flex-direction: column; gap: var(--space-3); }
@media (min-width: 768px) { .footer__nav { align-items: flex-end; } }
.footer__nav a {
  color: var(--text-secondary); font-size: var(--text-sm);
  transition: color var(--duration-fast) var(--ease-out);
}
.footer__nav a:hover { color: var(--accent); }
.footer__legal {
  margin-top: var(--space-7); padding-top: var(--space-5);
  border-top: 1px solid var(--border);
  display: grid; gap: var(--space-2);
  font-size: var(--text-xs); color: var(--text-muted);
}
@media (min-width: 768px) {
  .footer__legal { grid-template-columns: 1fr auto; }
}

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0; transform: translateY(18px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: none; }
/* escalonamento sutil dentro de grids (escopado — não vaza p/ outros .reveal) */
:is(.pains__grid, .features__grid, .steps__grid, .plans__grid, .faq__list) > .is-visible:nth-child(2) { transition-delay: 60ms; }
:is(.pains__grid, .features__grid, .steps__grid, .plans__grid, .faq__list) > .is-visible:nth-child(3) { transition-delay: 120ms; }
:is(.pains__grid, .features__grid, .steps__grid, .plans__grid, .faq__list) > .is-visible:nth-child(4) { transition-delay: 60ms; }
:is(.pains__grid, .features__grid, .steps__grid, .plans__grid, .faq__list) > .is-visible:nth-child(5) { transition-delay: 120ms; }
:is(.pains__grid, .features__grid, .steps__grid, .plans__grid, .faq__list) > .is-visible:nth-child(6) { transition-delay: 180ms; }

/* ---------- Acessibilidade: motion reduzido ---------- */
@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;
  }
  .reveal { opacity: 1; transform: none; }
  .chat .msg, .chat__tags, .chat__handoff, .ai__visual .msg { opacity: 1; transform: none; }
}

/* ===== Features: checklist "E ainda vem junto" ===== */
.features__extra { margin-top: var(--space-7, 4rem); }
.features__extra-title {
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: var(--space-4);
}
.features__list {
  display: grid;
  gap: var(--space-3) var(--space-5);
  list-style: none;
  padding: 0;
  margin: 0;
}
@media (min-width: 768px) { .features__list { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1100px) { .features__list { grid-template-columns: repeat(3, 1fr); } }
.features__list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--text-secondary);
  font-size: var(--text-sm);
  line-height: 1.55;
}
.features__list svg { width: 18px; height: 18px; flex: none; margin-top: 2px; color: var(--accent); }