/* ==========================================================================
   VoltPass — Design Tokens
   ========================================================================== */
:root {
  --bg: #F5F7FB;
  --bg-alt: #FFFFFF;
  --ink: #0B1120;
  --ink-soft: #4B5468;
  --muted: #6B7488;
  --line: #E4E7F0;

  --navy: #080C16;
  --navy-soft: #111A30;
  --navy-card: #141F3B;
  --navy-line: rgba(255, 255, 255, 0.09);
  --navy-text-muted: #A7B0C6;

  --volt: #C6FF4D;
  --volt-strong: #A8E62E;
  --volt-ink: #10200A;
  --blue: #4F86FF;
  --blue-deep: #2B4FCE;

  --white: #FFFFFF;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 26px;
  --radius-pill: 999px;

  --shadow-sm: 0 2px 10px rgba(10, 15, 30, 0.06);
  --shadow-md: 0 16px 40px rgba(10, 15, 30, 0.10);
  --shadow-lg: 0 24px 64px rgba(10, 15, 30, 0.16);

  --container: 1180px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --ease: cubic-bezier(.22, .61, .36, 1);
}

/* ==========================================================================
   Reset
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font: inherit; cursor: pointer; }
h1, h2, h3, h4, p { margin: 0; }
.icon { width: 1em; height: 1em; fill: none; stroke: currentColor; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

section[id] { scroll-margin-top: 84px; }

.skip-link {
  position: absolute;
  left: 1rem;
  top: -60px;
  background: var(--volt);
  color: var(--volt-ink);
  padding: .7rem 1.1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 999;
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 1rem; }

:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 3px;
}

/* ==========================================================================
   Layout helpers
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.25rem;
}
@media (min-width: 640px) { .container { padding-inline: 2rem; } }

.section { padding: 5rem 0; }
.section--tight { padding: 3.5rem 0; }
.section--alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.section--dark {
  background: var(--navy);
  color: var(--white);
}

.section__head {
  max-width: 640px;
  margin-bottom: 3rem;
}
.section__head--center { margin-inline: auto; text-align: center; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--blue-deep);
  background: rgba(79, 134, 255, 0.1);
  border: 1px solid rgba(79, 134, 255, 0.25);
  padding: .4rem .85rem;
  border-radius: var(--radius-pill);
  margin-bottom: 1.1rem;
}
.section--dark .eyebrow {
  color: var(--volt);
  background: rgba(198, 255, 77, 0.1);
  border-color: rgba(198, 255, 77, 0.28);
}
.eyebrow .icon { width: 1rem; height: 1rem; }

h2.h {
  font-size: clamp(1.7rem, 1.3rem + 1.6vw, 2.6rem);
  line-height: 1.15;
  font-weight: 800;
  letter-spacing: -0.02em;
}
p.lead {
  margin-top: .9rem;
  font-size: 1.08rem;
  line-height: 1.65;
  color: var(--ink-soft);
}
.section--dark p.lead { color: var(--navy-text-muted); }

.text-center { text-align: center; }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .9rem 1.5rem;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: .98rem;
  border: 1px solid transparent;
  transition: transform .15s var(--ease), box-shadow .15s var(--ease), background .15s var(--ease), color .15s var(--ease), border-color .15s var(--ease);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: var(--volt);
  color: var(--volt-ink);
  box-shadow: 0 10px 24px rgba(198, 255, 77, 0.28);
}
.btn--primary:hover { background: var(--volt-strong); box-shadow: 0 14px 30px rgba(198, 255, 77, 0.36); }

.btn--secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
}
.btn--secondary:hover { border-color: var(--ink); }
.section--dark .btn--secondary { color: var(--white); border-color: var(--navy-line); }
.section--dark .btn--secondary:hover { border-color: var(--white); }

.btn--block { width: 100%; }
.btn--sm { padding: .65rem 1.1rem; font-size: .9rem; }

/* ==========================================================================
   Header
   ========================================================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 247, 251, 0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.header.is-scrolled {
  border-bottom-color: var(--line);
  background: rgba(245, 247, 251, 0.92);
}
.header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.05rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.brand__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--navy);
  color: var(--volt);
}
.brand__mark .icon { width: 18px; height: 18px; }

.nav {
  display: none;
  align-items: center;
  gap: 2rem;
}
.nav a {
  font-size: .95rem;
  font-weight: 600;
  color: var(--ink-soft);
  transition: color .15s var(--ease);
}
.nav a:hover { color: var(--ink); }

.header__cta { display: none; }

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--bg-alt);
  color: var(--ink);
}
.nav-toggle .icon { width: 20px; height: 20px; }
.nav-toggle .icon--close { display: none; }
.nav-toggle[aria-expanded="true"] .icon--menu { display: none; }
.nav-toggle[aria-expanded="true"] .icon--close { display: block; }

.mobile-nav {
  position: fixed;
  top: 70px;
  left: 0;
  right: 0;
  height: calc(100vh - 70px);
  height: calc(100dvh - 70px);
  background: var(--bg-alt);
  padding: 1.5rem 1.25rem 2.5rem;
  display: flex;
  flex-direction: column;
  gap: .25rem;
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s var(--ease), transform .18s var(--ease);
  z-index: 99;
  overflow-y: auto;
}
.mobile-nav.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.mobile-nav a {
  padding: .9rem .25rem;
  font-size: 1.05rem;
  font-weight: 700;
  border-bottom: 1px solid var(--line);
}
.mobile-nav .btn { margin-top: 1.25rem; }

@media (min-width: 900px) {
  .nav { display: flex; }
  .header__cta { display: inline-flex; }
  .nav-toggle { display: none; }
  .mobile-nav { display: none; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  background:
    radial-gradient(60% 55% at 85% 8%, rgba(198, 255, 77, 0.16), transparent 60%),
    radial-gradient(50% 50% at 8% 15%, rgba(79, 134, 255, 0.22), transparent 60%),
    var(--navy);
  color: var(--white);
  overflow: hidden;
  padding-top: 4.5rem;
}
.hero__inner {
  display: grid;
  gap: 3rem;
  align-items: center;
  padding-bottom: 4rem;
}
.hero__content { max-width: 620px; }
.hero h1 {
  font-size: clamp(2.1rem, 1.5rem + 3vw, 3.4rem);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.hero h1 mark {
  background: none;
  color: var(--volt);
}
.hero p.lead { max-width: 46ch; }
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .9rem;
  margin-top: 2rem;
}
.hero__note {
  margin-top: 1.1rem;
  font-size: .85rem;
  color: var(--navy-text-muted);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 2.2rem;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  padding: .55rem .95rem;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--navy-line);
  font-size: .85rem;
  font-weight: 600;
  color: var(--white);
}
.chip .icon { width: 15px; height: 15px; color: var(--volt); flex-shrink: 0; }

.hero__visual { display: flex; justify-content: center; }
.hero__visual svg { width: 100%; max-width: 460px; height: auto; }

@media (min-width: 960px) {
  .hero__inner { grid-template-columns: 1.05fr .95fr; padding-bottom: 6rem; }
}

/* ==========================================================================
   Pricing
   ========================================================================== */
.price-hero {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
  margin-bottom: 1.75rem;
}
.price-card {
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.price-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 80% at 50% 0%, rgba(198, 255, 77, 0.18), transparent 70%);
}
.price-card__value {
  position: relative;
  font-size: clamp(3rem, 2.4rem + 2.5vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--volt);
  line-height: 1;
}
.price-card__unit {
  position: relative;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--navy-text-muted);
  margin-top: .6rem;
}
.price-card__caption {
  position: relative;
  margin-top: 1rem;
  font-size: 1.05rem;
  font-weight: 600;
  max-width: 32ch;
  margin-inline: auto;
}

.feature-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .feature-grid { grid-template-columns: 1fr 1fr; }
}

.feature-card {
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 1.9rem;
  box-shadow: var(--shadow-sm);
}
.feature-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  margin-bottom: 1.1rem;
}
.feature-card__icon .icon { width: 22px; height: 22px; }
.feature-card--dc .feature-card__icon { background: rgba(79, 134, 255, 0.12); color: var(--blue-deep); }
.feature-card--ac .feature-card__icon { background: rgba(198, 255, 77, 0.18); color: var(--volt-strong); }

.feature-card h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: .5rem; }
.feature-card p { color: var(--ink-soft); line-height: 1.6; }
.feature-card__stat {
  display: inline-block;
  margin-top: 1rem;
  font-weight: 700;
  font-size: .85rem;
  padding: .35rem .75rem;
  border-radius: var(--radius-pill);
  background: var(--bg);
  border: 1px solid var(--line);
}

.price-footnote {
  margin-top: 1.5rem;
  font-size: .85rem;
  color: var(--muted);
  max-width: 62ch;
}

/* ==========================================================================
   Steps
   ========================================================================== */
.steps {
  display: grid;
  gap: 1.75rem;
  grid-template-columns: 1fr;
  counter-reset: step;
}
@media (min-width: 780px) {
  .steps { grid-template-columns: repeat(3, 1fr); }
}
.step {
  position: relative;
  padding: 2rem 1.6rem 1.8rem;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
}
.step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--volt);
  font-weight: 800;
  font-size: .95rem;
  margin-bottom: 1.25rem;
}
.step__icon { color: var(--blue-deep); margin-bottom: 1rem; }
.step__icon .icon { width: 26px; height: 26px; }
.step h3 { font-size: 1.1rem; font-weight: 800; margin-bottom: .5rem; }
.step p { color: var(--ink-soft); line-height: 1.6; font-size: .96rem; }

.steps-arrow {
  display: none;
}

/* ==========================================================================
   Coverage
   ========================================================================== */
.coverage {
  display: grid;
  gap: 2.5rem;
  align-items: center;
  grid-template-columns: 1fr;
}
@media (min-width: 960px) {
  .coverage { grid-template-columns: .95fr 1.05fr; }
  .coverage--reverse .coverage__visual { order: 2; }
}
.coverage__visual {
  background: var(--navy);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
}
.coverage__visual svg { width: 100%; height: auto; }
.coverage ul { margin-top: 1.5rem; display: flex; flex-direction: column; gap: .9rem; }
.coverage li {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  color: var(--ink-soft);
  line-height: 1.55;
}
.coverage li .icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--volt-strong);
  margin-top: .15rem;
  background: rgba(168, 230, 46, 0.15);
  border-radius: 50%;
  padding: 3px;
  box-sizing: content-box;
}

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq { max-width: 780px; margin-inline: auto; }
.faq-item {
  border-bottom: 1px solid var(--line);
  padding: .3rem 0;
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.3rem .25rem;
  font-weight: 700;
  font-size: 1.02rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .icon {
  width: 20px;
  height: 20px;
  color: var(--muted);
  flex-shrink: 0;
  transition: transform .2s var(--ease);
}
.faq-item[open] summary .icon { transform: rotate(180deg); color: var(--blue-deep); }
.faq-item p {
  padding: 0 .25rem 1.4rem;
  color: var(--ink-soft);
  line-height: 1.65;
  max-width: 66ch;
}

/* ==========================================================================
   Signup
   ========================================================================== */
.signup {
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 3rem 1.75rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.signup::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(45% 65% at 12% 0%, rgba(79, 134, 255, 0.25), transparent 60%),
    radial-gradient(45% 65% at 88% 100%, rgba(198, 255, 77, 0.2), transparent 60%);
}
.signup__inner { position: relative; max-width: 520px; margin-inline: auto; }
.signup h2 { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.1rem); font-weight: 800; }
.signup p.lead { margin-inline: auto; }

.signup-form {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
@media (min-width: 560px) {
  .signup-form { flex-direction: row; }
}
.signup-form__field {
  flex: 1;
  position: relative;
}
.signup-form__field .icon {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: var(--navy-text-muted);
}
.signup-form input[type="email"] {
  width: 100%;
  padding: .95rem 1rem .95rem 2.7rem;
  border-radius: var(--radius-pill);
  border: 1px solid var(--navy-line);
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
  font-size: .98rem;
  font-family: inherit;
}
.signup-form input[type="email"]::placeholder { color: var(--navy-text-muted); }
.signup-form input[type="email"]:focus { outline: 2px solid var(--volt); outline-offset: 2px; }

.signup__status {
  margin-top: 1rem;
  font-size: .92rem;
  font-weight: 600;
  min-height: 1.4em;
}
.signup__status.is-success { color: var(--volt); }
.signup__status.is-error { color: #FF8A8A; }
.signup__disclaimer {
  margin-top: 1.25rem;
  font-size: .78rem;
  color: var(--navy-text-muted);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background: var(--navy);
  color: var(--navy-text-muted);
  padding-top: 4rem;
  border-top: 1px solid var(--navy-line);
}
.footer__grid {
  display: grid;
  gap: 2.5rem;
  grid-template-columns: 1fr;
  padding-bottom: 3rem;
}
@media (min-width: 720px) {
  .footer__grid { grid-template-columns: 1.4fr .8fr .8fr; }
}
.footer .brand { color: var(--white); }
.footer__blurb { margin-top: 1rem; max-width: 34ch; line-height: 1.6; font-size: .95rem; }
.footer__col h4 {
  color: var(--white);
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 1.1rem;
}
.footer__col ul { display: flex; flex-direction: column; gap: .7rem; }
.footer__col a { font-size: .95rem; transition: color .15s var(--ease); }
.footer__col a:hover { color: var(--white); }

.footer__bottom {
  border-top: 1px solid var(--navy-line);
  padding-block: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 1.5rem;
  align-items: center;
  justify-content: space-between;
  font-size: .82rem;
}

/* ==========================================================================
   Legal pages
   ========================================================================== */
.legal {
  padding: 3.5rem 0 5rem;
}
.legal h1 { font-size: clamp(1.7rem, 1.4rem + 1vw, 2.3rem); font-weight: 800; }
.legal .updated { color: var(--muted); margin-top: .5rem; font-size: .9rem; }
.legal-notice {
  margin-top: 1.75rem;
  padding: 1.1rem 1.3rem;
  border-radius: var(--radius-sm);
  background: #FFF7E6;
  border: 1px solid #F3D9A4;
  color: #6B5119;
  font-size: .92rem;
  line-height: 1.6;
}
.legal section { margin-top: 2.25rem; }
.legal h2 { font-size: 1.25rem; font-weight: 800; margin-bottom: .75rem; }
.legal p, .legal li { color: var(--ink-soft); line-height: 1.7; }
.legal ul { margin-top: .5rem; padding-left: 1.25rem; list-style: disc; }
.legal ul li { margin-bottom: .4rem; }
.legal .placeholder { color: var(--blue-deep); font-weight: 600; }

/* ==========================================================================
   Scroll reveal (progressive enhancement)
   ========================================================================== */
.js .reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
}
.js .reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}