/* Volt — Landing Site
 * Identidade oficial Volt (extraída de voltbr.com em 2026-04-25).
 * Mantida em sync com extension/src/shared/theme/tokens.css.
 */

:root {
  /* Primary — Volt Orange */
  --volt-primary-400: #ff8233;
  --volt-primary-500: #fb700b; /* accent oficial */
  --volt-primary-600: #e56200; /* hover */
  --volt-primary-700: #b94e00;
  --volt-primary-900: #5e2800;

  /* Spark (créditos / badges) */
  --volt-spark-400: #fbbf24;
  --volt-spark-500: #f59e0b;

  /* Brand secondary */
  --volt-brand-500: #1d3461;

  /* Neutrals — Volt Dark Slate */
  --volt-neutral-0: #ffffff;
  --volt-neutral-100: #f0f4f8;
  --volt-neutral-200: #d8dee6;
  --volt-neutral-300: #b8c2cf;
  --volt-neutral-400: #94a3b8;
  --volt-neutral-500: #64748b;
  --volt-neutral-700: #1e293b;
  --volt-neutral-800: #142238;
  --volt-neutral-900: #0d182b;
  --volt-neutral-1000: #070e1b;

  /* Semantic */
  --volt-danger: #ef4444;
  --volt-success: #10b981;

  /* Surfaces */
  --bg: var(--volt-neutral-1000);
  --surface: rgba(255, 255, 255, 0.06);
  --elevated: var(--volt-neutral-800);
  --border: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.18);
  --text: var(--volt-neutral-100);
  --text-dim: rgba(240, 244, 248, 0.52);

  /* Typography */
  --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, Oxygen, Ubuntu, sans-serif;

  /* Radii */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;
  --r-xl: 24px;
  --r-full: 9999px;

  /* Shadows — glow laranja em vez de indigo */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.40);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.50);
  --shadow-glow: 0 0 0 1px rgba(251, 112, 11, 0.35),
    0 12px 40px rgba(251, 112, 11, 0.18);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(99, 102, 241, 0.18), transparent 60%),
    radial-gradient(900px 500px at -10% 20%, rgba(251, 191, 36, 0.08), transparent 60%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--volt-primary-400);
  text-decoration: none;
}
a:hover {
  color: var(--volt-primary-300, #a5b4fc);
}

h1,
h2,
h3 {
  letter-spacing: -0.02em;
  margin: 0;
}

p {
  margin: 0;
}

/* ---------- NAV ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  background: rgba(2, 6, 23, 0.72);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
}
.brand__mark {
  width: 22px;
  height: 22px;
  color: var(--volt-primary-500);
}
.brand__text {
  color: var(--text);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 24px;
}
.nav__links a {
  color: var(--text-dim);
  font-size: 14px;
  font-weight: 500;
}
.nav__links a:hover {
  color: var(--text);
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--r-md);
  font-weight: 600;
  font-size: 14px;
  padding: 10px 18px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}
.btn--sm {
  padding: 8px 14px;
  font-size: 13px;
}
.btn--lg {
  padding: 14px 24px;
  font-size: 15px;
}
.btn--full {
  width: 100%;
}
.btn--primary {
  background: var(--volt-primary-600);
  color: #fff;
}
.btn--primary:hover {
  background: var(--volt-primary-700);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}
.btn--secondary {
  background: var(--elevated);
  color: var(--text);
  border-color: var(--border-strong);
}
.btn--secondary:hover {
  background: var(--volt-neutral-700);
  color: var(--text);
}
.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.btn--ghost:hover {
  background: rgba(148, 163, 184, 0.08);
  color: var(--text);
}

/* ---------- HERO ---------- */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 32px 72px;
}
.hero__inner {
  max-width: 560px;
}
.eyebrow {
  display: inline-block;
  background: rgba(99, 102, 241, 0.15);
  color: var(--volt-primary-400);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--r-full);
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 700;
  line-height: 1.05;
  margin-bottom: 20px;
}
.lede {
  font-size: 18px;
  color: var(--text-dim);
  margin-bottom: 32px;
  line-height: 1.55;
}
.hero__cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.hero__meta {
  font-size: 13px;
  color: var(--text-dim);
}

.hero__visual {
  display: flex;
  justify-content: center;
}
.hero__card {
  width: 100%;
  max-width: 460px;
  background: linear-gradient(180deg, var(--surface) 0%, var(--elevated) 100%);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}
.hero__card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.4), transparent 40%);
  -webkit-mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.hero__chat {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.msg {
  padding: 12px 14px;
  border-radius: var(--r-md);
  font-size: 14px;
  line-height: 1.5;
  max-width: 85%;
}
.msg--buyer {
  background: var(--volt-neutral-700);
  color: var(--text);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}
.msg--store {
  background: var(--volt-primary-600);
  color: #fff;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}
.msg__hint {
  font-size: 11px;
  color: var(--text-dim);
  text-align: right;
  margin-top: 4px;
}

/* ---------- SECTIONS ---------- */
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}
.section-head h2 {
  font-size: clamp(28px, 3.5vw, 40px);
  font-weight: 700;
  margin-bottom: 12px;
}
.section-head p {
  font-size: 17px;
  color: var(--text-dim);
}

.features,
.pricing,
.faq {
  max-width: 1200px;
  margin: 0 auto;
  padding: 88px 32px;
}

.grid {
  display: grid;
  gap: 20px;
}
.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}
.grid--4 {
  grid-template-columns: repeat(4, 1fr);
}

/* ---------- FEATURE CARDS ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 24px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}
.card__icon {
  font-size: 28px;
  margin-bottom: 14px;
}
.card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}
.card p {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.55;
}

/* ---------- PRICING ---------- */
.plan {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s ease, transform 0.15s ease;
}
.plan:hover {
  border-color: var(--border-strong);
}
.plan--highlight {
  border-color: var(--volt-primary-500);
  background: linear-gradient(
    180deg,
    rgba(99, 102, 241, 0.12) 0%,
    var(--surface) 60%
  );
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}
.plan__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--volt-spark-500);
  color: var(--volt-neutral-900);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 5px 12px;
  border-radius: var(--r-full);
  white-space: nowrap;
}
.plan__name {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 4px;
}
.plan__tag {
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 20px;
  min-height: 20px;
}
.plan__price {
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.plan__price-value {
  display: block;
  font-size: 34px;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 6px;
}
.plan__price-unit-inline {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dim);
}
.plan__price-unit {
  display: block;
  font-size: 13px;
  color: var(--text-dim);
}
.plan__features {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}
.plan__features li {
  font-size: 14px;
  color: var(--text);
  padding-left: 24px;
  position: relative;
}
.plan__features li::before {
  content: "⚡";
  position: absolute;
  left: 0;
  color: var(--volt-spark-400);
  font-size: 14px;
}

/* ---------- ENTERPRISE CTA ---------- */
.enterprise {
  margin-top: 40px;
  padding: 28px 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.enterprise h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
}
.enterprise p {
  font-size: 14px;
  color: var(--text-dim);
}

/* ---------- FAQ ---------- */
.faq__list {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq details {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 18px 22px;
  transition: border-color 0.15s ease;
}
.faq details[open] {
  border-color: var(--border-strong);
}
.faq summary {
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq summary::-webkit-details-marker {
  display: none;
}
.faq summary::after {
  content: "+";
  font-size: 22px;
  color: var(--text-dim);
  font-weight: 300;
}
.faq details[open] summary::after {
  content: "–";
}
.faq details p {
  margin-top: 12px;
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ---------- FOOTER ---------- */
.footer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 32px 40px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
  color: var(--text-dim);
}
.footer__brand {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-weight: 700;
}
.footer__tag {
  font-size: 13px;
}
.footer__links {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}
.footer__links a {
  color: var(--text-dim);
  font-size: 13px;
}
.footer__links a:hover {
  color: var(--text);
}
.footer__copy {
  font-size: 12px;
  color: var(--volt-neutral-500);
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    padding: 56px 24px;
    gap: 40px;
    text-align: left;
  }
  .hero__visual {
    order: -1;
  }
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid--3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .plan--highlight {
    transform: none;
  }
}

@media (max-width: 640px) {
  .nav {
    padding: 14px 18px;
  }
  .nav__links {
    gap: 14px;
  }
  .nav__links a:not(.btn) {
    display: none;
  }
  .features,
  .pricing,
  .faq {
    padding: 56px 18px;
  }
  .grid--4,
  .grid--3 {
    grid-template-columns: 1fr;
  }
  .enterprise {
    flex-direction: column;
    align-items: flex-start;
    padding: 22px;
  }
  .hero h1 {
    font-size: 34px;
  }
  .lede {
    font-size: 16px;
  }
}