/* ============ Tokens ============ */
:root {
  --bg: #000000;
  --bg-elevated: #141414;
  --card: #1f1f1f;
  --card-hover: #2a2a2a;
  --border: rgba(255, 255, 255, 0.1);
  --text: #ffffff;
  --text-muted: #b3b3b3;
  --text-faint: #808080;
  --accent: #2563eb;
  --accent-hover: #3b82f6;
  --success: #2ecc71;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;

  --container-width: 1200px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  --space-7: 96px;

  --transition-fast: 150ms ease-out;
  --transition-base: 250ms ease-out;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============ Reset ============ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
h1, h2, h3, p, ul, blockquote, figure { margin: 0; }
ul { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; padding: 0; }

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 3px;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--space-3);
}
.container--narrow { max-width: 760px; }
.container--bleed { max-width: none; padding: 0; }
.container--bleed .container { max-width: var(--container-width); margin: 0 auto; padding: 0 var(--space-3); }

@media (min-width: 768px) {
  .container { padding: 0 var(--space-4); }
}

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

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  text-align: center;
  white-space: normal;
  max-width: 100%;
}
.btn--primary {
  background: var(--accent);
  color: #fff;
}
.btn--primary:hover { background: var(--accent-hover); }
.btn--primary:active { transform: scale(0.98); }
.btn--sm { min-height: 44px; padding: 0 var(--space-3); font-size: 14px; }
.btn--lg { min-height: 56px; padding: var(--space-1) var(--space-4); font-size: clamp(15px, 4vw, 17px); line-height: 1.3; }
.btn--block { width: 100%; }

/* ============ Nav ============ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: var(--space-2) 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.75), transparent);
  transition: background-color var(--transition-base);
}
.nav.is-scrolled {
  background: rgba(0, 0, 0, 0.92);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__logo {
  font-weight: 900;
  font-size: 18px;
  letter-spacing: 0.5px;
}
.nav__logo span { color: var(--accent); }
.nav__cta { display: none; }
@media (min-width: 640px) {
  .nav__cta { display: inline-flex; }
}

/* ============ Hero ============ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 96px;
  padding-bottom: var(--space-6);
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  opacity: 0.55;
}
.hero__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to top, var(--bg) 5%, rgba(0,0,0,0.2) 45%, rgba(0,0,0,0.75) 100%),
    linear-gradient(to right, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.4) 60%);
}
.hero__grid { position: relative; z-index: 1; }
.hero__copy { max-width: 640px; }
.eyebrow {
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 14px;
  margin-bottom: var(--space-2);
}
.eyebrow--center { text-align: center; }
.hero__headline {
  font-size: clamp(32px, 6vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.5px;
  margin-bottom: var(--space-3);
}
.hero__sub {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--text-muted);
  max-width: 560px;
  margin-bottom: var(--space-4);
}
.hero__actions { margin-bottom: var(--space-2); }
.hero__guarantee {
  color: var(--text-faint);
  font-size: 14px;
}

/* ============ Sections ============ */
.section {
  padding: var(--space-6) 0;
}
.section--elevated { background: var(--bg-elevated); }

.section__title {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  text-align: center;
  max-width: 760px;
  margin: 0 auto var(--space-3);
  letter-spacing: -0.3px;
}
.section__title--left { text-align: left; margin: 0 0 var(--space-3); }

.section__lead {
  font-size: 18px;
  color: var(--text-muted);
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-4);
}
.section__lead--center { max-width: 760px; }
.section__lead--left { text-align: left; margin: 0; }

.section__closing {
  text-align: center;
  font-size: 19px;
  font-weight: 600;
  max-width: 700px;
  margin: var(--space-4) auto 0;
}

/* Dor: quote cards */
.quote-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  max-width: 900px;
  margin: 0 auto;
}
@media (min-width: 640px) {
  .quote-grid { grid-template-columns: 1fr 1fr; }
}
.quote-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  font-size: 16px;
  font-style: italic;
  color: var(--text-muted);
}

/* Promessa / statement */
.section--statement { padding: var(--space-7) 0; text-align: center; }
.statement {
  font-size: clamp(28px, 6vw, 52px);
  font-weight: 900;
  letter-spacing: -0.5px;
  line-height: 1.15;
  margin-bottom: var(--space-4);
}
.statement--sm { font-size: clamp(24px, 4.5vw, 38px); margin-bottom: var(--space-4); }

.section--final-cta {
  text-align: center;
  background: radial-gradient(ellipse at center, var(--bg-elevated) 0%, var(--bg) 70%);
}

/* Steps */
.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  max-width: 960px;
  margin: 0 auto;
}
@media (min-width: 768px) {
  .steps { grid-template-columns: repeat(3, 1fr); }
}
.step { text-align: center; }
.step__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  font-size: 18px;
  margin-bottom: var(--space-2);
}
.step__title { font-size: 20px; font-weight: 700; margin-bottom: var(--space-1); }
.step__text { color: var(--text-muted); font-size: 15px; }

/* Rows (catalog-style horizontal scroll) */
.row {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  padding: var(--space-2) var(--space-3) var(--space-3);
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}
@media (min-width: 768px) {
  .row { padding-left: calc((100vw - var(--container-width)) / 2 + var(--space-4)); padding-right: var(--space-4); }
}
.row::-webkit-scrollbar { height: 8px; }
.row::-webkit-scrollbar-thumb { background: var(--card-hover); border-radius: 4px; }

.diff-card {
  flex: 0 0 260px;
  scroll-snap-align: start;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  transition: transform var(--transition-base), background-color var(--transition-base);
}
.diff-card:hover { transform: translateY(-4px) scale(1.03); background: var(--card-hover); }
.diff-card__icon { width: 32px; height: 32px; color: var(--accent); margin-bottom: var(--space-2); }
.diff-card__title { font-size: 17px; font-weight: 700; margin-bottom: var(--space-1); }
.diff-card__text { font-size: 14px; color: var(--text-muted); }

/* Cover cards (product bundle row) */
.cover-card {
  flex: 0 0 220px;
  scroll-snap-align: start;
  aspect-ratio: 2 / 3;
  border-radius: var(--radius-md);
  padding: var(--space-3);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.cover-card:hover {
  transform: translateY(-6px) scale(1.04);
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
  z-index: 2;
}
.cover-card__title {
  font-size: 28px;
  font-weight: 900;
  line-height: 1.05;
  color: #fff;
  text-shadow: 0 2px 12px rgba(0,0,0,0.4);
}
.cover-card__title--sm { font-size: 18px; font-weight: 700; }
.cover-card__kicker {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  color: rgba(255,255,255,0.7);
  margin-bottom: var(--space-1);
}
.cover-card__meta {
  font-size: 13px;
  color: rgba(255,255,255,0.8);
  margin-top: var(--space-1);
}
.cover-card__badges {
  position: absolute;
  top: var(--space-2);
  left: var(--space-2);
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.cover-card__badges span {
  font-size: 11px;
  font-weight: 600;
  background: rgba(0,0,0,0.5);
  padding: 3px 8px;
  border-radius: 100px;
  width: fit-content;
  color: #fff;
}

.cover-card__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.cover-card__scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.25) 50%, rgba(0,0,0,0.15) 100%);
}
.cover-card__scrim--light {
  background: linear-gradient(to top, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0) 35%);
}
.cover-card__title,
.cover-card__meta,
.cover-card__kicker {
  position: relative;
  z-index: 2;
}

/* About */
.about {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  align-items: center;
}
@media (min-width: 768px) {
  .about { grid-template-columns: 320px 1fr; gap: var(--space-6); }
}
.about__media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  max-width: 320px;
  margin: 0 auto;
  border: 1px solid var(--border);
}
.about__media img { aspect-ratio: 3/4; object-fit: cover; }

/* Guarantee */
.guarantee {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-3);
  max-width: 700px;
  margin: 0 auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-4);
}
@media (min-width: 640px) {
  .guarantee { flex-direction: row; text-align: left; }
}
.guarantee__icon { width: 56px; height: 56px; color: var(--success); flex-shrink: 0; }
.guarantee__title { font-size: 22px; font-weight: 800; margin-bottom: var(--space-1); }
.guarantee__text { color: var(--text-muted); }

/* Offer */
.section--offer { background: var(--bg-elevated); }
.offer-card {
  max-width: 480px;
  margin: 0 auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-4);
  text-align: center;
}
.offer-card__title { font-size: 22px; font-weight: 700; margin-bottom: var(--space-2); }
.offer-card__price {
  font-size: clamp(38px, 11vw, 56px);
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
  margin-bottom: var(--space-1);
  white-space: nowrap;
}
.offer-card__price span { font-size: 24px; font-weight: 700; vertical-align: super; margin-right: 4px; }
.offer-card__installment { color: var(--text-muted); font-size: 16px; font-weight: 600; margin-bottom: var(--space-1); }
.offer-card__note { color: var(--text-faint); font-size: 14px; margin-bottom: var(--space-4); }
.offer-card__list {
  text-align: left;
  margin-bottom: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.offer-card__list li {
  position: relative;
  padding-left: 28px;
  font-size: 15px;
  color: var(--text-muted);
}
.offer-card__list li::before {
  content: "";
  position: absolute;
  left: 0; top: 3px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--success);
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'%3E%3Cpath d='M5 13l4 4L19 7'/%3E%3C/svg%3E") center/12px no-repeat;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3'%3E%3Cpath d='M5 13l4 4L19 7'/%3E%3C/svg%3E") center/12px no-repeat;
}

/* FAQ */
.faq { display: flex; flex-direction: column; gap: var(--space-1); }
.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq-item__q {
  width: 100%;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  cursor: pointer;
  font-weight: 600;
  font-size: 16px;
  text-align: left;
}
.faq-item__chevron {
  width: 20px; height: 20px;
  flex-shrink: 0;
  color: var(--text-muted);
  transition: transform var(--transition-base);
}
.faq-item[data-open="true"] .faq-item__chevron { transform: rotate(180deg); }
.faq-item__a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--transition-base);
}
.faq-item[data-open="true"] .faq-item__a { grid-template-rows: 1fr; }
.faq-item__a p {
  overflow: hidden;
  color: var(--text-muted);
  padding: 0 var(--space-3);
  font-size: 15px;
}
.faq-item[data-open="true"] .faq-item__a p { padding-bottom: var(--space-3); }
.faq-item__a { overflow: hidden; }
.faq-item__a > p { min-height: 0; }

/* Footer */
.footer {
  padding: var(--space-4) 0 var(--space-5);
  text-align: center;
  color: var(--text-faint);
  font-size: 14px;
  border-top: 1px solid var(--border);
}