/* =========================================================================
   Revisa que Passa — Landing v2
   Direction: KINETIC DARK EDITORIAL (edu-tech).
   Living WebGL hero, oversized editorial type, indigo/violet identity from
   the official logo, functional accent gradients, grid-breaking composition.
   ========================================================================= */

:root {
  /* Brand (from RQP-Azul logo) */
  --indigo: #5b4ee6;
  --indigo-bright: #7c6ff5;
  --indigo-deep: #3b2eb8;
  --violet: #8b5cf6;
  --glow: rgba(91, 78, 230, 0.5);

  /* Functional accents (mirror the app's per-action gradients) */
  --sky: #3b82f6;        /* Estudar */
  --emerald: #10b981;    /* Revisar */
  --purple: #a855f7;     /* Praticar */
  --pink: #ec4899;       /* Flowing */
  --orange: #f97316;     /* Flowing */
  --amber: #f5a524;

  /* Ink base */
  --ink-950: #07060f;
  --ink-900: #0b0a18;
  --ink-850: #100e22;
  --ink-800: #15132c;
  --line: rgba(148, 140, 220, 0.16);
  --line-soft: rgba(148, 140, 220, 0.1);

  /* Light surfaces */
  --surface: #ffffff;
  --surface-soft: #f5f4fc;
  --text: #0c0a1d;
  --text-soft: #4a4763;
  --text-mut: #8a86a8;
  --text-inv: #efeefb;
  --text-inv-soft: #b3aede;
  --text-inv-mut: #797597;

  /* Type */
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --text-hero: clamp(2.9rem, 1rem + 7.4vw, 7rem);
  --text-h2: clamp(2.1rem, 1.2rem + 3vw, 3.6rem);
  --text-lead: clamp(1.08rem, 0.98rem + 0.5vw, 1.32rem);

  --space-section: clamp(5rem, 3rem + 8vw, 10rem);
  --radius: 18px;
  --radius-lg: 28px;
  --radius-xl: 36px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur: 340ms;
  --maxw: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--font-body);
  background: var(--ink-900); color: var(--text);
  line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.02; margin: 0; letter-spacing: -0.03em; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img, svg, canvas { display: block; max-width: 100%; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 1.5rem; }
::selection { background: var(--indigo); color: #fff; }

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.55rem;
  font-family: var(--font-display); font-weight: 600; font-size: 1rem; letter-spacing: -0.01em;
  padding: 0.95rem 1.7rem; border-radius: 999px; border: 0; cursor: pointer; position: relative;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background var(--dur) var(--ease);
  will-change: transform;
}
.btn-primary { background: var(--indigo); color: #fff; box-shadow: 0 14px 34px -10px var(--glow); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 22px 46px -12px var(--glow); background: var(--indigo-bright); }
.btn-primary:active { transform: translateY(-1px); }
.btn-flow { background: linear-gradient(110deg, var(--pink), var(--orange)); color: #fff; box-shadow: 0 14px 34px -10px rgba(236, 72, 153, 0.5); }
.btn-flow:hover { transform: translateY(-3px); }
.btn-light { background: #fff; color: var(--ink-900); }
.btn-light:hover { transform: translateY(-3px); box-shadow: 0 18px 40px -14px rgba(0,0,0,0.5); }
.btn-ghost { background: rgba(255,255,255,0.05); color: var(--text-inv); border: 1px solid var(--line); backdrop-filter: blur(8px); }
.btn-ghost:hover { background: rgba(255,255,255,0.11); transform: translateY(-2px); }
.btn-block { width: 100%; }
.btn:focus-visible { outline: 3px solid var(--indigo-bright); outline-offset: 3px; }

/* Play button (hero) */
.btn-play { display: inline-flex; align-items: center; gap: 0.75rem; background: transparent; border: 0; cursor: pointer; padding: 0.3rem; font-family: var(--font-body); }
.btn-play__icon { position: relative; flex: none; width: 54px; height: 54px; border-radius: 50%; background: linear-gradient(135deg, var(--indigo-bright), var(--violet)); display: grid; place-items: center; color: #fff; font-size: 1.05rem; padding-left: 3px; box-shadow: 0 14px 32px -8px var(--glow); transition: transform var(--dur) var(--ease); }
.btn-play__icon::before { content: ""; position: absolute; inset: -3px; border-radius: 50%; border: 2px solid var(--indigo-bright); animation: ping 2.2s var(--ease) infinite; }
.btn-play:hover .btn-play__icon { transform: scale(1.08); }
.btn-play:focus-visible { outline: 3px solid var(--indigo-bright); outline-offset: 3px; border-radius: 999px; }
.btn-play__txt { text-align: left; line-height: 1.2; font-size: 0.95rem; color: var(--text-inv-soft); }
.btn-play__txt b { display: block; color: #fff; font-family: var(--font-display); font-weight: 600; font-size: 1.02rem; }
@keyframes ping { 0% { transform: scale(1); opacity: 0.6; } 70% { transform: scale(1.45); opacity: 0; } 100% { opacity: 0; } }

.eyebrow {
  display: inline-flex; align-items: center; gap: 0.6rem;
  font-family: var(--font-display); font-weight: 600; font-size: 0.78rem;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--indigo-bright);
}
.eyebrow::before { content: ""; width: 28px; height: 2px; background: currentColor; border-radius: 2px; }
.eyebrow--center { justify-content: center; }

/* ===================== NAV ===================== */
.nav { position: sticky; top: 0; z-index: 60; transition: background var(--dur), border-color var(--dur); border-bottom: 1px solid transparent; }
.nav.scrolled { background: color-mix(in srgb, var(--ink-900) 82%, transparent); backdrop-filter: blur(16px); border-bottom: 1px solid var(--line); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: flex; align-items: center; gap: 0.65rem; }
.brand img { width: 34px; height: 34px; }
.brand__name { font-family: var(--font-display); font-weight: 700; color: var(--text-inv); font-size: 1.12rem; letter-spacing: -0.02em; }
.brand__name b { color: var(--indigo-bright); font-weight: 700; }
.nav__links { display: flex; align-items: center; gap: 2.1rem; }
.nav__links a { color: var(--text-inv-soft); font-weight: 500; font-size: 0.95rem; transition: color var(--dur); }
.nav__links a:hover { color: #fff; }
.nav__cta { display: flex; align-items: center; gap: 0.85rem; }
.nav__login { color: var(--text-inv-soft); font-weight: 600; font-size: 0.95rem; transition: color var(--dur); }
.nav__login:hover { color: #fff; }
@media (max-width: 880px) { .nav__links { display: none; } .nav__login { display: none; } }

/* ===================== HERO ===================== */
.hero { position: relative; min-height: 100vh; display: flex; flex-direction: column; color: var(--text-inv); overflow: hidden;
  background:
    radial-gradient(90% 70% at 88% 6%, rgba(124,111,245,0.22), transparent 55%),
    radial-gradient(70% 60% at 6% 100%, rgba(168,85,247,0.14), transparent 60%),
    var(--ink-950);
}
/* graph-paper grid — quiet "study" texture */
.hero__bg { position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(148,140,220,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148,140,220,0.05) 1px, transparent 1px);
  background-size: 46px 46px; mask-image: radial-gradient(120% 90% at 50% 0%, #000 35%, transparent 85%);
  -webkit-mask-image: radial-gradient(120% 90% at 50% 0%, #000 35%, transparent 85%);
}
.hero__spline { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; display: none; }
.hero[data-spline="on"] .hero__bg { display: none; }
.hero[data-spline="on"] .hero__spline { display: block; }
.hero__veil { position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background: linear-gradient(180deg, transparent 55%, var(--ink-900) 100%); }
.hero__inner { position: relative; z-index: 2; flex: 1; display: grid; grid-template-columns: 1.08fr 0.92fr; align-items: center; gap: clamp(2rem, 1rem + 3vw, 3.5rem); padding: clamp(2rem, 1rem + 4vw, 4rem) 0 clamp(4rem, 2rem + 5vw, 6rem); }

/* Retention-graph card (study-themed hero visual) */
.graph-card { position: relative; background: linear-gradient(165deg, rgba(255,255,255,0.09), rgba(255,255,255,0.03)); border: 1px solid var(--line); border-radius: var(--radius-xl); padding: 1.4rem 1.5rem 1.2rem; backdrop-filter: blur(20px); box-shadow: 0 50px 100px -40px rgba(0,0,0,0.7); }
.graph-card__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.4rem; }
.graph-card__head b { color: #fff; font-family: var(--font-display); font-weight: 600; font-size: 1.02rem; }
.graph-card__sub { color: var(--text-inv-mut); font-size: 0.82rem; margin-bottom: 0.6rem; }
.graph-card canvas { width: 100%; height: 230px; display: block; }
.graph-legend { display: flex; gap: 1.2rem; margin-top: 0.6rem; flex-wrap: wrap; }
.graph-legend span { display: inline-flex; align-items: center; gap: 0.45rem; font-size: 0.8rem; color: var(--text-inv-soft); }
.graph-legend i { width: 22px; height: 3px; border-radius: 3px; display: inline-block; }
.graph-legend .l-rev { background: linear-gradient(90deg, var(--indigo-bright), var(--pink)); }
.graph-legend .l-no { background: rgba(236,72,153,0.5); }
.graph-note { margin-top: 0.95rem; display: flex; gap: 0.6rem; align-items: center; background: linear-gradient(110deg, rgba(124,111,245,0.16), rgba(236,72,153,0.1)); border: 1px solid rgba(124,111,245,0.32); border-radius: 14px; padding: 0.7rem 0.9rem; font-size: 0.86rem; line-height: 1.4; color: var(--text-inv-soft); }
.graph-note .ic { font-size: 1.1rem; line-height: 1; }
.graph-note b { color: #fff; font-weight: 700; }

.hero__badge { display: inline-flex; align-items: center; gap: 0.55rem; padding: 0.45rem 1rem 0.45rem 0.55rem; border-radius: 999px; background: rgba(255,255,255,0.06); border: 1px solid var(--line); color: var(--text-inv); font-weight: 500; font-size: 0.85rem; margin-bottom: 1.8rem; backdrop-filter: blur(8px); }
.hero__badge .tag { background: linear-gradient(110deg, var(--pink), var(--orange)); color: #fff; font-weight: 700; font-size: 0.72rem; padding: 0.2rem 0.6rem; border-radius: 999px; letter-spacing: 0.02em; }
.hero h1 { font-size: var(--text-hero); font-weight: 700; letter-spacing: -0.04em; }
.hero h1 .grad { background: linear-gradient(105deg, var(--indigo-bright) 10%, var(--violet) 50%, var(--pink) 90%); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero h1 em { font-style: normal; color: #fff; position: relative; white-space: nowrap; }
.hero__lead { font-size: var(--text-lead); color: var(--text-inv-soft); margin: 1.8rem 0 2.4rem; max-width: 44ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
.hero__note { color: var(--text-inv-mut); font-size: 0.9rem; margin-top: 1.6rem; display: flex; gap: 0.5rem; align-items: center; }

/* Floating echo card (overlaps, grid-breaking) */
.hero__aside { position: relative; justify-self: end; width: min(100%, 380px); }
.echo-card { background: linear-gradient(165deg, rgba(255,255,255,0.1), rgba(255,255,255,0.03)); border: 1px solid var(--line); border-radius: var(--radius-xl); padding: 1.5rem; backdrop-filter: blur(22px); box-shadow: 0 50px 100px -40px rgba(0,0,0,0.75); display: grid; gap: 1rem; }
.echo-card__top { display: flex; align-items: center; justify-content: space-between; }
.echo-card__top b { color: #fff; font-family: var(--font-display); font-weight: 600; }
.pill { font-size: 0.7rem; font-weight: 700; padding: 0.28rem 0.7rem; border-radius: 999px; text-transform: uppercase; letter-spacing: 0.06em; }
.pill--due { background: rgba(245, 165, 36, 0.16); color: var(--amber); }
.flash { background: rgba(0,0,0,0.22); border: 1px solid var(--line-soft); border-radius: var(--radius); padding: 1.2rem; }
.flash__q { font-family: var(--font-display); font-weight: 600; color: #fff; font-size: 1.05rem; line-height: 1.3; }
.flash__a { color: var(--text-inv-soft); font-size: 0.92rem; margin-top: 0.6rem; }
.flash__row { display: flex; gap: 0.6rem; margin-top: 1.1rem; }
.chip { flex: 1; text-align: center; padding: 0.6rem; border-radius: 12px; font-size: 0.82rem; font-weight: 700; border: 1px solid var(--line); transition: transform var(--dur) var(--ease); cursor: default; }
.chip--again { color: #fca5a5; background: rgba(239,68,68,0.1); }
.chip--good { color: #6ee7b7; background: rgba(16,185,129,0.12); }
.chip:hover { transform: translateY(-2px); }
.echo-card__foot { display: flex; align-items: center; gap: 0.85rem; }
.spark { display: flex; gap: 4px; align-items: flex-end; height: 36px; }
.spark span { width: 8px; background: linear-gradient(var(--indigo-bright), var(--violet)); border-radius: 3px; opacity: 0.9; }
.float-tag { position: absolute; right: -8px; top: -90px; background: #fff; color: var(--text); border-radius: 18px; padding: 0.85rem 1.05rem; box-shadow: 0 28px 56px -20px rgba(0,0,0,0.6); display: flex; gap: 0.65rem; align-items: center; font-weight: 700; font-size: 0.9rem; z-index: 3; }
.float-tag .dot { width: 36px; height: 36px; border-radius: 11px; background: rgba(16,185,129,0.14); color: var(--emerald); display: grid; place-items: center; font-size: 1.1rem; }

.hero__scroll { position: relative; z-index: 2; display: flex; justify-content: center; padding-bottom: 1.6rem; color: var(--text-inv-mut); font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; }
.hero__scroll span { animation: bob 1.8s var(--ease) infinite; }
@keyframes bob { 0%,100% { transform: translateY(0); opacity: 0.6; } 50% { transform: translateY(5px); opacity: 1; } }

@media (max-width: 920px) {
  .hero__inner { grid-template-columns: 1fr; gap: 3rem; }
  .hero__aside { justify-self: stretch; width: 100%; max-width: 420px; }
}

/* ===================== MARQUEE ===================== */
.marquee { background: var(--ink-950); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 1.3rem 0; overflow: hidden; }
.marquee__track { display: flex; gap: 3rem; width: max-content; animation: slide 28s linear infinite; }
.marquee__track span { color: var(--text-inv-mut); font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; display: inline-flex; gap: 3rem; align-items: center; white-space: nowrap; }
.marquee__track span::after { content: "✦"; color: var(--indigo); }
@keyframes slide { to { transform: translateX(-50%); } }

/* ===================== SECTIONS ===================== */
.section { padding: var(--space-section) 0; background: var(--surface); position: relative; }
.section--soft { background: var(--surface-soft); }
.section--dark { background: var(--ink-900); color: var(--text-inv); }
.section__head { max-width: 680px; margin-bottom: clamp(2.5rem, 1.5rem + 3vw, 4.5rem); }
.section__head h2 { font-size: var(--text-h2); font-weight: 700; margin-top: 1.1rem; }
.section__head p { color: var(--text-soft); font-size: var(--text-lead); margin-top: 1.1rem; }
.section--dark .section__head p { color: var(--text-inv-soft); }
.section__head--center { margin-left: auto; margin-right: auto; text-align: center; }

/* ===================== FLOWING (signature moment) ===================== */
.flowing { position: relative; overflow: hidden; background: var(--ink-950); color: var(--text-inv); padding: var(--space-section) 0; }
.flowing__glow { position: absolute; width: 720px; height: 720px; right: -180px; top: -160px; background: radial-gradient(circle, rgba(236,72,153,0.4), transparent 62%); filter: blur(40px); pointer-events: none; }
.flowing__glow2 { position: absolute; width: 560px; height: 560px; left: -160px; bottom: -200px; background: radial-gradient(circle, rgba(249,115,22,0.3), transparent 62%); filter: blur(40px); pointer-events: none; }
.flowing__grid { position: relative; display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 1rem + 4vw, 4.5rem); align-items: center; }
.flowing__tag { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.4rem 0.95rem; border-radius: 999px; background: linear-gradient(110deg, rgba(236,72,153,0.18), rgba(249,115,22,0.18)); border: 1px solid rgba(236,72,153,0.35); color: #fbcfe8; font-weight: 600; font-size: 0.82rem; margin-bottom: 1.4rem; }
.flowing h2 { font-size: var(--text-h2); font-weight: 700; }
.flowing h2 .grad { background: linear-gradient(110deg, var(--pink), var(--orange)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.flowing p.lead { color: var(--text-inv-soft); font-size: var(--text-lead); margin: 1.3rem 0 2rem; max-width: 46ch; }
.flowing__demo { background: linear-gradient(165deg, rgba(255,255,255,0.08), rgba(255,255,255,0.02)); border: 1px solid var(--line); border-radius: var(--radius-xl); padding: 1.8rem; backdrop-filter: blur(18px); box-shadow: 0 50px 100px -40px rgba(0,0,0,0.7); }
.flowing__demo h4 { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.14em; color: var(--text-inv-mut); font-weight: 600; }
.flowing__topic { font-family: var(--font-display); font-weight: 700; font-size: 1.5rem; color: #fff; margin: 0.4rem 0 1.3rem; }
.flowing__interests { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.flowing__interests button { border: 1px solid var(--line); background: rgba(255,255,255,0.04); color: var(--text-inv-soft); border-radius: 999px; padding: 0.55rem 1rem; font-size: 0.9rem; font-weight: 600; cursor: pointer; transition: all var(--dur) var(--ease); font-family: var(--font-body); }
.flowing__interests button[aria-pressed="true"] { background: linear-gradient(110deg, var(--pink), var(--orange)); color: #fff; border-color: transparent; transform: translateY(-2px); }
.flowing__out { margin-top: 1.5rem; padding: 1.2rem; border-radius: var(--radius); background: rgba(0,0,0,0.25); border: 1px solid var(--line-soft); color: var(--text-inv-soft); font-size: 0.96rem; line-height: 1.6; min-height: 3.5rem; }
.flowing__out b { color: #fff; }
@media (max-width: 860px) { .flowing__grid { grid-template-columns: 1fr; } }

/* ===================== BENTO FEATURES ===================== */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 1.2rem; }
.feature { position: relative; border-radius: var(--radius-lg); padding: 1.9rem; overflow: hidden; border: 1px solid #eceaf8; background: #fff; transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur); }
.feature:hover { transform: translateY(-5px); box-shadow: 0 30px 60px -30px rgba(60, 46, 184, 0.3); border-color: #ddd8f5; }
.feature__icon { width: 52px; height: 52px; border-radius: 15px; display: grid; place-items: center; margin-bottom: 1.2rem; font-size: 1.45rem; }
.feature h3 { font-size: 1.4rem; font-weight: 600; margin-bottom: 0.55rem; letter-spacing: -0.02em; }
.feature p { color: var(--text-soft); font-size: 0.98rem; }
.feature .soon { font-size: 0.68rem; font-weight: 800; color: var(--indigo); background: rgba(91,78,230,0.1); padding: 0.15rem 0.5rem; border-radius: 6px; text-transform: uppercase; letter-spacing: 0.05em; margin-left: 0.4rem; vertical-align: middle; }
.feature--md { grid-column: span 2; }
.feature--lg { grid-column: span 3; }
.feature--hero { grid-column: span 6; color: var(--text-inv); background: radial-gradient(130% 130% at 0% 0%, var(--indigo-deep), var(--ink-900)); border-color: var(--ink-800); display: grid; grid-template-columns: 1.2fr 1fr; align-items: center; gap: 2rem; }
.feature--hero h3 { color: #fff; font-size: clamp(1.6rem, 1.2rem + 1.5vw, 2.2rem); }
.feature--hero p { color: var(--text-inv-soft); max-width: 46ch; }
.ebb-curve { display: flex; align-items: flex-end; gap: 6px; height: 120px; }
.ebb-curve i { flex: 1; background: linear-gradient(var(--indigo-bright), rgba(124,111,245,0.2)); border-radius: 5px 5px 0 0; position: relative; }
.ebb-curve i::after { content: attr(data-d); position: absolute; top: -1.3rem; left: 50%; transform: translateX(-50%); font-size: 0.62rem; color: var(--text-inv-mut); font-weight: 700; }
.i-indigo { background: rgba(91,78,230,0.12); color: var(--indigo); }
.i-sky { background: rgba(59,130,246,0.12); color: var(--sky); }
.i-emerald { background: rgba(16,185,129,0.14); color: var(--emerald); }
.i-purple { background: rgba(168,85,247,0.12); color: var(--purple); }
.i-amber { background: rgba(245,165,36,0.16); color: #b26a00; }
@media (max-width: 880px) { .bento { grid-template-columns: repeat(2, 1fr); } .feature--md, .feature--lg, .feature--hero { grid-column: span 2; } .feature--hero { grid-template-columns: 1fr; } }

/* ===================== SHOWCASE (feature videos) ===================== */
.showcase { display: grid; gap: clamp(2.5rem, 1.5rem + 4vw, 5rem); }
.show-row { display: grid; grid-template-columns: 1fr 1.25fr; gap: clamp(1.5rem, 1rem + 3vw, 4rem); align-items: center; }
.show-row:nth-child(even) .show-row__media { order: -1; }
.show-row__kicker { display: inline-flex; align-items: center; gap: 0.5rem; font-family: var(--font-display); font-weight: 700; font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--indigo); }
.show-row h3 { font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.3rem); font-weight: 700; margin: 0.8rem 0 0.7rem; letter-spacing: -0.02em; }
.show-row p { color: var(--text-soft); font-size: 1.05rem; max-width: 42ch; }
.show-row__media { position: relative; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid #e6e3f6; box-shadow: 0 40px 80px -36px rgba(60,46,184,0.4); background: #0e0c1f; }
.show-row__media::after { content: ""; position: absolute; inset: 0; border-radius: inherit; box-shadow: inset 0 0 0 1px rgba(255,255,255,0.06); pointer-events: none; }
.show-row__media { cursor: zoom-in; }
.show-row__media video { width: 100%; display: block; aspect-ratio: 1280 / 800; object-fit: cover; background: #0e0c1f; }
/* hover affordance to enlarge */
.show-zoom { position: absolute; inset: 0; z-index: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.55rem; background: rgba(12,10,29,0); opacity: 0; transition: opacity var(--dur) var(--ease), background var(--dur) var(--ease); }
.show-row__media:hover .show-zoom, .show-row__media:focus-visible .show-zoom { opacity: 1; background: rgba(12,10,29,0.42); }
.show-zoom .ic { width: 74px; height: 74px; border-radius: 50%; background: rgba(255,255,255,0.16); backdrop-filter: blur(8px); border: 1px solid rgba(255,255,255,0.35); display: grid; place-items: center; color: #fff; font-size: 1.7rem; transition: transform var(--dur) var(--ease-spring); }
.show-row__media:hover .show-zoom .ic { transform: scale(1.1); }
.show-zoom small { color: #fff; font-weight: 700; font-family: var(--font-display); font-size: 0.85rem; letter-spacing: 0.02em; }

/* Lightbox */
.vlightbox { position: fixed; inset: 0; z-index: 120; display: none; align-items: center; justify-content: center; padding: clamp(1rem, 4vw, 3rem); }
.vlightbox.open { display: flex; }
.vlightbox__backdrop { position: absolute; inset: 0; background: rgba(7,6,15,0.88); backdrop-filter: blur(10px); animation: fade var(--dur) var(--ease); }
.vlightbox__close { position: absolute; top: clamp(0.8rem, 3vw, 1.7rem); right: clamp(0.8rem, 3vw, 1.7rem); z-index: 2; width: 48px; height: 48px; border-radius: 50%; border: 1px solid var(--line); background: rgba(255,255,255,0.1); backdrop-filter: blur(8px); color: #fff; font-size: 1.6rem; line-height: 1; cursor: pointer; transition: background var(--dur), transform var(--dur); }
.vlightbox__close:hover { background: rgba(255,255,255,0.22); transform: rotate(90deg); }
.vlightbox__stage { position: relative; z-index: 1; width: min(1040px, 95vw); border-radius: var(--radius-lg); overflow: hidden; box-shadow: 0 60px 120px -30px rgba(0,0,0,0.85); border: 1px solid var(--line); background: #0e0c1f; animation: pop var(--dur) var(--ease-spring); }
.vlightbox__stage video { width: 100%; height: auto; max-height: 86vh; display: block; background: #0e0c1f; }
.vlightbox__badge { position: absolute; top: 0.9rem; left: 0.9rem; z-index: 2; background: rgba(12,10,29,0.72); backdrop-filter: blur(8px); color: #fff; font-size: 0.74rem; font-weight: 700; padding: 0.32rem 0.75rem; border-radius: 999px; display: inline-flex; gap: 0.4rem; align-items: center; pointer-events: none; }
.vlightbox__badge .live { width: 7px; height: 7px; border-radius: 50%; background: var(--emerald); box-shadow: 0 0 0 0 rgba(16,185,129,0.6); animation: pulse 2s infinite; }
.show-badge { position: absolute; top: 0.9rem; left: 0.9rem; z-index: 2; background: rgba(12,10,29,0.7); backdrop-filter: blur(8px); color: #fff; font-size: 0.72rem; font-weight: 700; padding: 0.3rem 0.7rem; border-radius: 999px; display: inline-flex; gap: 0.4rem; align-items: center; }
.show-badge .live { width: 7px; height: 7px; border-radius: 50%; background: var(--emerald); box-shadow: 0 0 0 0 rgba(16,185,129,0.6); animation: pulse 2s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(16,185,129,0.6); } 70% { box-shadow: 0 0 0 8px rgba(16,185,129,0); } 100% { box-shadow: 0 0 0 0 rgba(16,185,129,0); } }
@media (max-width: 820px) { .show-row { grid-template-columns: 1fr; } .show-row:nth-child(even) .show-row__media { order: 0; } }

/* ===================== "PRA QUEM É" (inclusive) ===================== */
.audience { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.aud-card { border-radius: var(--radius-lg); padding: 2rem; border: 1px solid var(--line); background: linear-gradient(165deg, rgba(255,255,255,0.06), rgba(255,255,255,0.02)); }
.aud-card h3 { color: #fff; font-size: 1.45rem; font-weight: 600; margin-bottom: 0.6rem; }
.aud-card p { color: var(--text-inv-soft); }
.aud-card .tag { display: inline-block; font-size: 0.72rem; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; padding: 0.25rem 0.65rem; border-radius: 999px; margin-bottom: 1rem; }
.aud-card .tag.a { background: rgba(59,130,246,0.16); color: #93c5fd; }
.aud-card .tag.b { background: rgba(236,72,153,0.16); color: #fbcfe8; }
@media (max-width: 760px) { .audience { grid-template-columns: 1fr; } }

/* ===================== AUTORIDADE (Prof. Andrey) ===================== */
.authority { position: relative; overflow: hidden; }
.authority__grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(2rem, 1rem + 4vw, 4.5rem); align-items: center; }

/* Neon photo frame */
.neon-photo { position: relative; width: min(100%, 410px); aspect-ratio: 4 / 5; border-radius: 26px; padding: 4px; isolation: isolate; margin: 0 auto; animation: floaty 6s var(--ease) infinite; }
.neon-photo::before { content: ""; position: absolute; inset: -2px; border-radius: inherit; z-index: -1;
  background: conic-gradient(from 0deg, var(--indigo-bright), var(--violet), var(--pink), var(--sky), var(--indigo-bright));
  animation: spin 7s linear infinite; }
.neon-photo::after { content: ""; position: absolute; inset: -16px; border-radius: 32px; z-index: -2;
  background: conic-gradient(from 0deg, var(--indigo-bright), var(--violet), var(--pink), var(--sky), var(--indigo-bright));
  filter: blur(36px); opacity: 0.55; animation: spin 7s linear infinite, glowPulse 3.4s ease-in-out infinite; }
.neon-photo img { width: 100%; height: 100%; object-fit: cover; object-position: 62% 22%; border-radius: 22px; display: block; }
.neon-photo__cap { position: absolute; left: 12px; right: 12px; bottom: 12px; background: rgba(7,6,15,0.72); backdrop-filter: blur(10px); border: 1px solid var(--line); border-radius: 16px; padding: 0.75rem 0.95rem; }
.neon-photo__cap b { color: #fff; font-family: var(--font-display); font-weight: 600; font-size: 1rem; display: block; }
.neon-photo__cap span { color: var(--text-inv-soft); font-size: 0.8rem; }
.neon-photo__verif { position: absolute; top: -12px; right: -12px; z-index: 2; width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, var(--indigo-bright), var(--violet)); display: grid; place-items: center; color: #fff; font-size: 1.2rem; box-shadow: 0 8px 24px -6px var(--glow); animation: glowPulse 3.4s ease-in-out infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes glowPulse { 0%,100% { opacity: 0.45; } 50% { opacity: 0.85; } }
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }

.authority__seal { display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.4rem 0.95rem; border-radius: 999px; background: rgba(124,111,245,0.14); border: 1px solid rgba(124,111,245,0.35); color: var(--indigo-bright); font-weight: 600; font-size: 0.82rem; margin-bottom: 1.3rem; }
.authority h2 { font-size: var(--text-h2); font-weight: 700; }
.authority__quote { color: var(--text-inv-soft); font-size: var(--text-lead); margin: 1.3rem 0 1.6rem; max-width: 46ch; }
.authority__quote b { color: #fff; }
.cred-chips { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-bottom: 1.8rem; }
.cred-chips span { font-size: 0.84rem; font-weight: 600; color: var(--text-inv-soft); background: rgba(255,255,255,0.05); border: 1px solid var(--line); border-radius: 999px; padding: 0.45rem 0.9rem; }
.cred-chips b { color: #fff; }

/* Book card */
.book-card { display: grid; grid-template-columns: auto 1fr; gap: 1.4rem; align-items: center; background: linear-gradient(165deg, rgba(255,255,255,0.07), rgba(255,255,255,0.02)); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 1.3rem; }
.book-card img { width: 104px; border-radius: 10px; box-shadow: 0 18px 40px -14px rgba(0,0,0,0.6); transition: transform var(--dur) var(--ease); }
.book-card:hover img { transform: translateY(-4px) rotate(-2deg); }
.book-card__tag { font-size: 0.72rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--amber); }
.book-card h3 { color: #fff; font-size: 1.3rem; font-weight: 600; margin: 0.3rem 0 0.3rem; }
.book-card p { color: var(--text-inv-soft); font-size: 0.92rem; margin-bottom: 0.9rem; }
.book-card .links { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; }
.book-card a.amz { display: inline-flex; align-items: center; gap: 0.4rem; font-weight: 700; font-family: var(--font-display); color: #fff; background: rgba(245,165,36,0.16); border: 1px solid rgba(245,165,36,0.4); padding: 0.5rem 0.9rem; border-radius: 999px; font-size: 0.88rem; transition: all var(--dur) var(--ease); }
.book-card a.amz:hover { background: rgba(245,165,36,0.28); transform: translateY(-2px); }
.book-card a.site { color: var(--indigo-bright); font-weight: 600; font-size: 0.9rem; }
.book-card a.site:hover { color: #fff; }
@media (max-width: 900px) { .authority__grid { grid-template-columns: 1fr; } .neon-photo { max-width: 340px; } }
@media (max-width: 480px) { .book-card { grid-template-columns: 1fr; text-align: center; } .book-card img { margin: 0 auto; } .book-card .links { justify-content: center; } }

/* ===================== STEPS ===================== */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; }
.step { position: relative; }
.step__num { font-family: var(--font-display); font-weight: 700; font-size: 3.2rem; color: transparent; -webkit-text-stroke: 1.5px var(--indigo); line-height: 1; }
.section--dark .step__num { -webkit-text-stroke-color: var(--indigo-bright); }
.step h3 { font-size: 1.35rem; margin: 0.9rem 0 0.5rem; }
.step p { color: var(--text-soft); }
.section--dark .step p { color: var(--text-inv-soft); }
@media (max-width: 760px) { .steps { grid-template-columns: 1fr; gap: 2.5rem; } }

/* ===================== PRICING ===================== */
.pricing { background: radial-gradient(130% 90% at 50% -10%, #1a1640, var(--ink-950)); color: var(--text-inv); }
.toggle { display: inline-flex; align-items: center; gap: 0.3rem; background: rgba(255,255,255,0.06); border: 1px solid var(--line); border-radius: 999px; padding: 0.32rem; margin: 1.6rem auto 0; }
.toggle button { border: 0; background: transparent; color: var(--text-inv-soft); font-family: var(--font-display); font-weight: 600; padding: 0.62rem 1.4rem; border-radius: 999px; cursor: pointer; transition: all var(--dur) var(--ease); font-size: 0.95rem; }
.toggle button.active { background: #fff; color: var(--ink-900); }
.toggle .save { font-size: 0.7rem; color: var(--emerald); font-weight: 800; margin-left: 0.35rem; }
.plans { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem; max-width: 880px; margin: 3rem auto 0; }
.plan { background: linear-gradient(165deg, rgba(255,255,255,0.07), rgba(255,255,255,0.02)); border: 1px solid var(--line); border-radius: var(--radius-xl); padding: 2.3rem; display: flex; flex-direction: column; transition: transform var(--dur) var(--ease); }
.plan:hover { transform: translateY(-4px); }
.plan--featured { border-color: rgba(124,111,245,0.55); background: linear-gradient(165deg, #211b4d, #14112e); box-shadow: 0 50px 100px -40px rgba(0,0,0,0.7); position: relative; }
.plan__tag { position: absolute; top: -14px; left: 2.3rem; background: linear-gradient(110deg, var(--indigo-bright), var(--violet)); color: #fff; font-family: var(--font-display); font-weight: 700; font-size: 0.74rem; padding: 0.38rem 0.95rem; border-radius: 999px; text-transform: uppercase; letter-spacing: 0.04em; }
.plan__name { font-family: var(--font-display); font-weight: 600; font-size: 1.55rem; color: #fff; }
.plan__desc { color: var(--text-inv-soft); margin-top: 0.3rem; }
.plan__price { display: flex; align-items: flex-end; gap: 0.4rem; margin: 1.5rem 0 0.2rem; }
.plan__currency { font-size: 1.2rem; font-weight: 700; color: var(--text-inv-soft); padding-bottom: 0.55rem; }
.plan__amount { font-family: var(--font-display); font-weight: 700; font-size: 3.6rem; color: #fff; line-height: 1; letter-spacing: -0.03em; }
.plan__cycle { color: var(--text-inv-soft); padding-bottom: 0.55rem; }
.plan__sub { color: var(--text-inv-mut); font-size: 0.88rem; min-height: 1.3em; }
.plan__old { color: var(--text-inv-mut); text-decoration: line-through; }
.plan__list { list-style: none; padding: 0; margin: 1.7rem 0; display: grid; gap: 0.85rem; flex: 1; }
.plan__list li { display: flex; gap: 0.65rem; align-items: flex-start; color: var(--text-inv-soft); font-size: 0.96rem; }
.plan__list li::before { content: "✓"; color: var(--emerald); font-weight: 800; }
@media (max-width: 760px) { .plans { grid-template-columns: 1fr; } }

/* ===================== FAQ ===================== */
.faq { display: grid; gap: 0.9rem; max-width: 840px; margin: 0 auto; }
.faq details { background: #fff; border: 1px solid #eceaf8; border-radius: var(--radius); padding: 0 1.5rem; transition: border-color var(--dur), box-shadow var(--dur); }
.faq details[open] { border-color: var(--indigo); box-shadow: 0 16px 36px -22px var(--glow); }
.faq summary { list-style: none; cursor: pointer; padding: 1.35rem 0; font-family: var(--font-display); font-weight: 600; font-size: 1.1rem; display: flex; justify-content: space-between; gap: 1rem; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.6rem; color: var(--indigo); transition: transform var(--dur) var(--ease); line-height: 1; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { color: var(--text-soft); padding: 0 0 1.35rem; }

/* ===================== FINAL CTA + FOOTER ===================== */
.final-cta { background: var(--ink-900); color: var(--text-inv); text-align: center; }
.final-cta__box { position: relative; overflow: hidden; background: radial-gradient(130% 150% at 50% 0%, var(--indigo-deep), #100d28); border: 1px solid var(--ink-800); border-radius: var(--radius-xl); padding: clamp(3.2rem, 2rem + 5vw, 6rem) 1.5rem; }
.final-cta__box::before, .final-cta__box::after { content: ""; position: absolute; border-radius: 50%; filter: blur(70px); opacity: 0.45; pointer-events: none; }
.final-cta__box::before { width: 320px; height: 320px; background: var(--violet); top: -120px; left: 10%; }
.final-cta__box::after { width: 280px; height: 280px; background: var(--pink); bottom: -120px; right: 10%; opacity: 0.3; }
.final-cta h2 { position: relative; font-size: var(--text-h2); font-weight: 700; }
.final-cta p { position: relative; color: var(--text-inv-soft); font-size: var(--text-lead); margin: 1.1rem auto 2.2rem; max-width: 48ch; }
.final-cta .btn { position: relative; }

.footer { background: var(--ink-950); color: var(--text-inv-mut); padding: 3.5rem 0 2.5rem; border-top: 1px solid var(--line); }
.footer__row { display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap; align-items: center; }
.footer__links { display: flex; gap: 1.6rem; flex-wrap: wrap; }
.footer a { color: var(--text-inv-soft); transition: color var(--dur); }
.footer a:hover { color: #fff; }
.footer__legal { font-size: 0.85rem; margin-top: 1.8rem; color: var(--text-inv-mut); }

/* ===================== MODAL / CHECKOUT ===================== */
.modal { position: fixed; inset: 0; z-index: 100; display: none; align-items: center; justify-content: center; padding: 1rem; }
.modal.open { display: flex; }
.modal__backdrop { position: absolute; inset: 0; background: rgba(7,6,15,0.74); backdrop-filter: blur(8px); animation: fade var(--dur) var(--ease); }
.modal__card { position: relative; width: 100%; max-width: 480px; max-height: 92vh; overflow-y: auto; background: var(--surface); border-radius: var(--radius-xl); padding: 2.1rem; box-shadow: 0 50px 100px -30px rgba(0,0,0,0.65); animation: pop var(--dur) var(--ease-spring); }
.modal__close { position: absolute; top: 1.1rem; right: 1.1rem; width: 38px; height: 38px; border-radius: 50%; border: 0; background: var(--surface-soft); color: var(--text-soft); font-size: 1.3rem; cursor: pointer; transition: background var(--dur); }
.modal__close:hover { background: #ebe9f8; }
.modal h3 { font-size: 1.5rem; font-weight: 700; }
.modal__plan { display: flex; justify-content: space-between; align-items: center; background: var(--surface-soft); border-radius: 14px; padding: 0.95rem 1.15rem; margin: 1.1rem 0 1.5rem; }
.modal__plan b { font-family: var(--font-display); font-weight: 600; }
.modal__plan .price { font-family: var(--font-display); font-weight: 700; color: var(--indigo); font-size: 1.25rem; }

.field { margin-bottom: 0.95rem; }
.field label { display: block; font-size: 0.85rem; font-weight: 600; color: var(--text-soft); margin-bottom: 0.38rem; }
.field input { width: 100%; padding: 0.88rem 1rem; border: 1px solid #ded9f2; border-radius: 12px; font-size: 1rem; font-family: var(--font-body); transition: border-color var(--dur), box-shadow var(--dur); background: #fff; }
.field input:focus { outline: 0; border-color: var(--indigo); box-shadow: 0 0 0 4px rgba(91,78,230,0.14); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.8rem; }

.paytabs { display: grid; grid-template-columns: 1fr 1fr; gap: 0.7rem; margin: 0.4rem 0 1.2rem; }
.paytab { display: flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.88rem; border: 1.5px solid #ded9f2; border-radius: 12px; background: #fff; font-weight: 600; font-family: var(--font-display); cursor: pointer; transition: all var(--dur) var(--ease); color: var(--text-soft); }
.paytab.active { border-color: var(--indigo); background: rgba(91,78,230,0.06); color: var(--indigo); }
.card-fields { display: none; }
.card-fields.show { display: block; }
.modal__error { background: rgba(239,68,68,0.08); color: #b91c1c; border: 1px solid rgba(239,68,68,0.25); border-radius: 12px; padding: 0.85rem 1rem; font-size: 0.9rem; margin-bottom: 1rem; display: none; }
.modal__error.show { display: block; }
.modal__secure { text-align: center; color: var(--text-mut); font-size: 0.82rem; margin-top: 1rem; display: flex; gap: 0.4rem; justify-content: center; align-items: center; }

.pix-result { text-align: center; display: none; }
.pix-result.show { display: block; }
.pix-result img { width: 220px; height: 220px; margin: 1rem auto; border-radius: 16px; border: 1px solid #eceaf8; }
.pix-copy { display: flex; gap: 0.5rem; margin: 1rem 0; }
.pix-copy input { flex: 1; padding: 0.78rem; border: 1px solid #ded9f2; border-radius: 10px; font-size: 0.82rem; color: var(--text-soft); }
.pix-hint { color: var(--text-soft); font-size: 0.9rem; background: var(--surface-soft); border-radius: 12px; padding: 0.95rem; text-align: left; }

.spinner { width: 18px; height: 18px; border: 3px solid rgba(255,255,255,0.4); border-top-color: #fff; border-radius: 50%; animation: spin 0.7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fade { from { opacity: 0; } }
@keyframes pop { from { opacity: 0; transform: translateY(18px) scale(0.96); } }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: 0.08s; }
.reveal[data-d="2"] { transition-delay: 0.16s; }
.reveal[data-d="3"] { transition-delay: 0.24s; }