:root {
  --navy: #0a1330;
  --navy-2: #0e1a3d;
  --blue: #3b9dff;
  --green: #34e08a;
  --grad: linear-gradient(90deg, var(--blue), var(--green));
  --ink: #10182f;
  --ink-soft: #4b5573;
  --paper: #ffffff;
  --paper-2: #f4f7fc;
  --border: #e3e8f2;
  --radius: 16px;
  --shadow: 0 20px 40px -20px rgba(10, 19, 48, 0.25);
  --maxw: 1120px;
  font-size: 16px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
}
h1, h2, h3 { font-family: 'Poppins', 'Inter', sans-serif; margin: 0 0 .5em; line-height: 1.15; }
p { margin: 0 0 1em; color: var(--ink-soft); }
a { color: inherit; text-decoration: none; }
ul { padding-left: 1.1em; color: var(--ink-soft); }
li { margin-bottom: .4em; }
img { max-width: 100%; display: block; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.center { text-align: center; }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .78rem;
  font-weight: 600;
  color: var(--blue);
  margin-bottom: .6em;
}
.eyebrow--center { text-align: center; }
.sub { color: var(--ink-soft); max-width: 560px; margin: 0 auto 2.5em; }
.grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: .85em 1.6em;
  border-radius: 999px;
  font-weight: 600;
  font-size: .95rem;
  transition: transform .15s ease, box-shadow .15s ease, opacity .15s ease;
  white-space: nowrap;
}
.btn--primary {
  background: var(--grad);
  color: #05122b;
  box-shadow: 0 12px 24px -8px rgba(59, 157, 255, 0.45);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 16px 30px -8px rgba(59, 157, 255, 0.55); }
.btn--ghost {
  color: var(--navy);
  border: 1.5px solid var(--border);
}
.btn--ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn--lg { padding: 1.05em 2.4em; font-size: 1.05rem; }
.btn--nav { padding: .6em 1.3em; font-size: .88rem; }

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.nav__brand { display: flex; align-items: center; gap: .6em; font-weight: 700; font-family: 'Poppins', sans-serif; font-size: 1.02rem; white-space: nowrap; flex-shrink: 0; }
.nav__links { display: flex; gap: 1.8em; font-size: .92rem; font-weight: 500; }
.nav__links a:hover { color: var(--blue); }
@media (max-width: 820px) { .nav__links { display: none; } }
@media (max-width: 560px) {
  .nav__inner { height: auto; padding-top: 12px; padding-bottom: 12px; }
  .nav__brand span { font-size: .92rem; }
  .btn--nav { display: none; }
}

/* Hero */
.hero {
  background: radial-gradient(circle at 20% 15%, #14224f, var(--navy) 60%);
  color: #fff;
  padding: 96px 0 80px;
}
.hero__inner { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.hero .eyebrow { color: var(--green); }
.hero h1 { font-size: clamp(2.1rem, 4.2vw, 3.1rem); color: #fff; }
.hero__lead { color: #c3cbe6; font-size: 1.08rem; max-width: 540px; }
.hero__cta { display: flex; gap: 1em; flex-wrap: wrap; margin: 1.6em 0 1.2em; }
.hero .btn--ghost { color: #fff; border-color: rgba(255,255,255,0.35); }
.hero .btn--ghost:hover { border-color: var(--green); color: var(--green); }
.hero__tag { text-transform: uppercase; letter-spacing: .1em; font-size: .8rem; color: #8894c2; }
.hero__art { display: flex; justify-content: center; }
.hero__art img { filter: drop-shadow(0 24px 50px rgba(52, 224, 138, 0.25)); }
@media (max-width: 860px) {
  .hero__inner { grid-template-columns: 1fr; text-align: center; }
  .hero__lead { margin-left: auto; margin-right: auto; }
  .hero__cta { justify-content: center; }
  .hero__art { order: -1; max-width: 260px; margin: 0 auto; }
}

/* Problem */
.problem { padding: 80px 0; background: var(--paper-2); }
.problem h2 { text-align: center; margin-bottom: 2em; font-size: 1.8rem; }
.problem__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.card__num {
  display: inline-block;
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
  font-size: 1.6rem;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: .3em;
}
.problem__close { text-align: center; margin-top: 2em; font-size: 1.05rem; color: var(--navy); }
@media (max-width: 760px) { .problem__grid { grid-template-columns: 1fr; } }

/* Method */
.method { padding: 90px 0; }
.method h2.center { font-size: 2rem; }
.prova { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.prova__item {
  text-align: center;
  padding: 28px 16px;
  border-radius: var(--radius);
  background: var(--paper-2);
  border: 1px solid var(--border);
}
.prova__letter {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--grad);
  color: #05122b;
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
  font-size: 1.3rem;
  margin-bottom: .7em;
}
.prova__item p { font-size: .92rem; }
@media (max-width: 900px) { .prova { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 500px) { .prova { grid-template-columns: 1fr; } }

/* Tools */
.tools { padding: 80px 0; background: var(--navy-2); color: #fff; }
.tools__grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; }
.tools h2 { color: #fff; font-size: 1.8rem; }
.tools p { color: #c3cbe6; }
.tools .eyebrow { color: var(--green); }
.checklist { list-style: none; padding: 0; margin-top: 1.5em; }
.checklist li {
  position: relative;
  padding-left: 1.6em;
  color: #dfe4f5;
  margin-bottom: .7em;
}
.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 700;
}
.stat-card {
  background: #101c40;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 32px;
}
.stat-row { display: grid; grid-template-columns: 110px 1fr 48px; align-items: center; gap: 12px; margin-bottom: 18px; font-size: .88rem; color: #c3cbe6; }
.bar { height: 10px; border-radius: 999px; background: rgba(255,255,255,0.08); overflow: hidden; }
.bar__fill { height: 100%; border-radius: 999px; }
.bar__fill--low { background: #5b6b98; }
.bar__fill--high { background: var(--grad); }
.stat-value { text-align: right; font-weight: 600; color: #fff; }
.stat-caption { font-size: .82rem; color: #8894c2; margin: 0; }
@media (max-width: 860px) { .tools__grid { grid-template-columns: 1fr; } }

/* Content offer */
.content-offer { padding: 90px 0; background: var(--paper-2); }
.content-offer h2.center { font-size: 1.9rem; max-width: 720px; margin-left: auto; margin-right: auto; }
.offer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 2.5em; }
.offer-card {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow);
}
.offer-card--highlight { border: 1.5px solid var(--blue); }
.offer-card__icon { font-size: 2.2rem; margin-bottom: .3em; }
@media (max-width: 820px) { .offer-grid { grid-template-columns: 1fr; } }

/* How it works / timeline */
.how { padding: 90px 0; }
.timeline { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; margin-top: 2em; }
.timeline__item {
  background: var(--paper-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  font-size: .9rem;
  color: var(--ink);
  min-width: 130px;
  text-align: center;
}
.timeline__item span {
  display: block;
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  color: var(--blue);
  margin-bottom: .3em;
  font-size: .82rem;
  text-transform: uppercase;
  letter-spacing: .05em;
}

/* Offer / CTA */
.offer { padding: 90px 0; background: radial-gradient(circle at 50% 0%, #14224f, var(--navy) 65%); color: #fff; }
.offer__box { max-width: 620px; margin: 0 auto; text-align: center; }
.offer__icon { margin: 0 auto 1em; }
.offer h2 { color: #fff; font-size: 2rem; }
.offer p { color: #c3cbe6; }
.offer__note { margin-top: 1em; font-size: .85rem; color: #8894c2; }

/* FAQ */
.faq { padding: 90px 0; }
.faq h2 { margin-bottom: 1.5em; font-size: 1.8rem; }
.faq__list { max-width: 720px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
details {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 22px;
  background: var(--paper-2);
}
summary { font-weight: 600; cursor: pointer; color: var(--navy); }
details p { margin-top: .8em; margin-bottom: 0; }

/* Footer */
.footer { padding: 40px 0; background: var(--navy); color: #8894c2; }
.footer__inner { text-align: center; }
.footer__brand { display: flex; align-items: center; justify-content: center; gap: .5em; font-weight: 600; color: #fff; margin-bottom: .4em; }
.footer p { color: #8894c2; margin: 0; font-size: .85rem; }