/* ============================================================
   Verified Crypto Solutions — rebuilt responsive styles
   Mobile-first. Breakpoints: 640px, 900px, 1100px
   ============================================================ */

:root {
  --black: #000000;
  --navy-900: #04070f;
  --navy-800: #071022;
  --navy-700: #0b1a33;
  --white: #ffffff;
  --muted: rgba(255, 255, 255, 0.72);
  --faint: rgba(255, 255, 255, 0.55);
  --blue: #0038ff;
  --teal: #00e8da;
  --line: rgba(255, 255, 255, 0.12);
  --card: rgba(11, 26, 51, 0.55);
  --radius: 14px;
  --font: 'Fahkwang', sans-serif;
  --header-h: 72px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  margin: 0;
  font-family: var(--font);
  font-weight: 400;
  background: var(--black);
  color: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3 { line-height: 1.15; margin: 0 0 0.5em; font-weight: 600; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

.container {
  width: min(1200px, 100% - 2.5rem);
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--teal);
  color: var(--black);
  padding: 0.6rem 1rem;
  z-index: 200;
  font-weight: 600;
}
.skip-link:focus { left: 0; }

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-block;
  padding: 0.85rem 1.75rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
}
.btn-primary {
  background: linear-gradient(120deg, var(--blue), #2456ff);
  color: var(--white);
  box-shadow: 0 8px 28px rgba(0, 56, 255, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 34px rgba(0, 56, 255, 0.5); }
.btn-ghost {
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: var(--white);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.1); transform: translateY(-2px); }

/* ---------------- Header ---------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease;
}
.site-header.is-scrolled {
  background: rgba(4, 7, 15, 0.9);
  border-bottom-color: var(--line);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand {
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
  font-size: clamp(0.95rem, 2.5vw, 1.15rem);
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.brand-dot { color: var(--teal); }

.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.05em;
  position: relative;
  padding: 0.25rem 0;
  transition: color 0.2s ease;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--teal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s ease;
}
.nav-link:hover, .nav-link.is-active { color: var(--white); }
.nav-link:hover::after, .nav-link.is-active::after { transform: scaleX(1); }
.nav-cta {
  color: var(--black);
  background: var(--teal);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.55rem 1.25rem;
  border-radius: 999px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(0, 232, 218, 0.35); }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 1px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 3rem) 0 4rem;
  isolation: isolate;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(100deg, rgba(0, 0, 0, 0.92) 0%, rgba(4, 10, 24, 0.78) 45%, rgba(0, 0, 0, 0.55) 100%),
    url("assets/hero-tablet.jpg") center / cover no-repeat;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 35%;
  background: linear-gradient(to top, var(--black), transparent);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}
.eyebrow {
  color: var(--teal);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}
.hero h1 {
  font-size: clamp(2.4rem, 6.5vw, 4.75rem);
  font-weight: 700;
  letter-spacing: 0.01em;
  margin-bottom: 1.25rem;
}
.amp { color: var(--teal); }
.hero-sub {
  color: var(--muted);
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  max-width: 34ch;
  margin-bottom: 2.25rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.hero-cert {
  margin: 0;
  max-width: 480px;
  justify-self: center;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(0, 232, 218, 0.08);
  background: var(--navy-800);
}
.hero-cert img { width: 100%; }
.hero-cert figcaption {
  padding: 0.85rem 1.1rem;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--faint);
  text-transform: uppercase;
}

/* ---------------- Section titles ---------------- */
.section-title {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  font-weight: 600;
  text-align: center;
  margin-bottom: 2.5rem;
}
.title-accent { color: var(--teal); font-weight: 400; }
.section-sub {
  text-align: center;
  color: var(--faint);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin-top: -1.5rem;
  margin-bottom: 0;
}
.services-head { margin-bottom: 3rem; }

/* ---------------- Mission & Vision ---------------- */
.mission {
  position: relative;
  padding: clamp(4rem, 9vw, 7.5rem) 0;
  isolation: isolate;
}
.mission-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(rgba(0, 0, 0, 0.88), rgba(4, 10, 24, 0.9)),
    url("assets/key-bg.jpg") center / cover no-repeat;
}
.mission-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 1000px;
  margin-inline: auto;
}
.glass-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 3.5vw, 2.5rem);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.glass-card h3 {
  font-size: 1.4rem;
  color: var(--teal);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.glass-card p { color: var(--muted); font-size: 1.02rem; }

/* ---------------- Services ---------------- */
.services { padding: clamp(4rem, 9vw, 7.5rem) 0; background: var(--navy-900); }
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.service-card {
  background: var(--navy-800);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.service-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 232, 218, 0.4);
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.5);
}
.service-card--featured { border-color: rgba(0, 56, 255, 0.55); }
.service-media { aspect-ratio: 16 / 9; overflow: hidden; }
.service-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.service-card:hover .service-media img { transform: scale(1.05); }
.service-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.service-body h3 { font-size: 1.35rem; margin-bottom: 0.6rem; }
.service-body > p { color: var(--muted); font-size: 0.98rem; }
.service-rate {
  margin-top: auto;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.service-rate strong { color: var(--teal); text-transform: none; letter-spacing: 0.02em; }

/* ---------------- Why Us ---------------- */
.why { padding: clamp(4rem, 9vw, 7.5rem) 0; background: var(--black); }
.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 1000px;
  margin-inline: auto;
}
.why-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.5rem, 3.5vw, 2.5rem);
  background: linear-gradient(160deg, rgba(0, 56, 255, 0.08), rgba(0, 232, 218, 0.04) 60%, transparent);
}
.why-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: var(--teal);
  background: rgba(0, 232, 218, 0.1);
  border: 1px solid rgba(0, 232, 218, 0.3);
  margin-bottom: 1.25rem;
}
.why-icon svg { width: 26px; height: 26px; }
.why-item h3 { font-size: 1.4rem; }
.why-item p { color: var(--muted); font-size: 1rem; }

/* ---------------- Footer ---------------- */
.site-footer {
  padding: clamp(4rem, 8vw, 6rem) 0 2.5rem;
  background: linear-gradient(to bottom, var(--navy-900), var(--black));
  border-top: 1px solid var(--line);
  text-align: center;
}
.footer-title {
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  margin-bottom: 1.25rem;
}
.footer-email {
  display: inline-block;
  color: var(--teal);
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  text-decoration: none;
  letter-spacing: 0.03em;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease;
  word-break: break-all;
}
.footer-email:hover { border-bottom-color: var(--teal); }
.footer-location { color: var(--muted); margin: 1rem 0 1.5rem; }
.footer-social {
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.05);
  transition: transform 0.2s ease, background 0.2s ease;
  margin-bottom: 2rem;
}
.footer-social:hover { transform: translateY(-3px); background: rgba(255, 255, 255, 0.12); }
.footer-copy { color: var(--faint); font-size: 0.85rem; margin: 0; }

/* ---------------- Hero trust badges ---------------- */
.hero-badges {
  list-style: none;
  margin: 1.9rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.5rem;
}
.hero-badges li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
  font-size: 0.9rem;
  letter-spacing: 0.02em;
}
.hero-badges svg { width: 16px; height: 16px; color: var(--teal); flex: none; }

/* ---------------- Trust strip ---------------- */
.trust-strip {
  background: linear-gradient(90deg, rgba(0, 56, 255, 0.16), rgba(0, 232, 218, 0.1));
  border-block: 1px solid var(--line);
  padding: 1.4rem 0;
}
.trust-strip p {
  text-align: center;
  margin: 0;
  font-size: clamp(0.95rem, 2vw, 1.12rem);
}
.trust-strip strong { color: var(--teal); }
.strip-sub { color: var(--muted); font-size: 0.9em; }

/* ---------------- About card ---------------- */
.about-card {
  max-width: 1000px;
  margin: 1.5rem auto 0;
}
.about-card h3 { font-size: 1.3rem; margin-bottom: 0.2rem; }
.about-role {
  color: var(--teal);
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}
.about-card p:last-child { color: var(--muted); }

/* ---------------- How It Works ---------------- */
.steps { padding: clamp(4rem, 9vw, 7.5rem) 0; background: var(--black); }
.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.step-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  background: var(--card);
}
.step-num {
  display: block;
  color: var(--teal);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}
.step-card h3 { font-size: 1.25rem; }
.step-card p { color: var(--muted); font-size: 0.98rem; }

/* ---------------- CTA band ---------------- */
.cta-band {
  margin-top: 3.5rem;
  text-align: center;
  border: 1px solid rgba(0, 232, 218, 0.25);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(0, 56, 255, 0.14), rgba(0, 232, 218, 0.06));
  padding: clamp(2rem, 4.5vw, 3rem);
}
.cta-band h3 { font-size: clamp(1.45rem, 3vw, 2rem); }
.cta-band p {
  color: var(--muted);
  max-width: 54ch;
  margin: 0 auto 1.6rem;
}

/* ---------------- FAQ ---------------- */
.faq { padding: clamp(4rem, 9vw, 7.5rem) 0; background: var(--navy-900); }
.faq-list {
  max-width: 820px;
  margin-inline: auto;
  display: grid;
  gap: 0.75rem;
}
.faq details {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--navy-800);
  overflow: hidden;
}
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 1.1rem 1.35rem;
  font-weight: 600;
  font-size: 1.02rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  transition: color 0.2s ease;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  color: var(--teal);
  font-size: 1.45rem;
  font-weight: 400;
  line-height: 1;
  flex: none;
  transition: transform 0.2s ease;
}
.faq details[open] summary { color: var(--teal); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p {
  padding: 0 1.35rem 1.2rem;
  color: var(--muted);
  font-size: 0.98rem;
}

/* ---------------- Contact form ---------------- */
.footer-lead { color: var(--muted); margin: -0.5rem 0 2rem; }
.contact-form {
  max-width: 560px;
  margin-inline: auto;
  display: grid;
  gap: 1.1rem;
  text-align: left;
}
.field label {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 0.45rem;
}
.field input,
.field select,
.field textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--navy-800);
  color: var(--white);
  font-family: var(--font);
  font-size: 1rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.field textarea { min-height: 140px; resize: vertical; }
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(0, 232, 218, 0.15);
}
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.btn-submit { width: 100%; border: 0; cursor: pointer; font-family: var(--font); font-size: 1rem; }
.btn-submit:disabled { opacity: 0.6; cursor: default; transform: none; }
.form-note { color: var(--faint); font-size: 0.85rem; text-align: center; margin: 0; }
.form-alt { margin: 2.5rem 0 0.5rem; color: var(--muted); }
.form-alt .footer-email { font-size: inherit; }

/* ---------------- Sticky mobile CTA ---------------- */
.sticky-cta { display: none; }

/* ---------------- Reveal animation ---------------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation: none !important; transition-duration: 0.01ms !important; }
}

/* ============================================================
   Breakpoints
   ============================================================ */

@media (min-width: 640px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); grid-auto-flow: dense; }
  .service-card--featured { grid-column: span 2; }
  .hero-actions .btn { padding: 0.95rem 2.1rem; }
}

@media (min-width: 900px) {
  .hero-grid { grid-template-columns: 1.15fr 0.85fr; gap: 4rem; }
  .hero-cert { justify-self: end; }
  .mission-grid { grid-template-columns: 1fr 1fr; }
  .why-grid { grid-template-columns: 1fr 1fr; }
  .services-grid { grid-template-columns: repeat(3, 1fr); }
  .service-card--featured { grid-column: auto; transform: translateY(-10px); }
  .service-card--featured:hover { transform: translateY(-16px); }
  .steps-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 480px) {
  .eyebrow { letter-spacing: 0.14em; font-size: 0.72rem; }
  .hero-actions .btn { width: 100%; }
}

/* Mobile nav (below 900px) */
@media (max-width: 899px) {
  .nav-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(4, 7, 15, 0.98);
    border-bottom: 1px solid var(--line);
    padding: 1.5rem 1.25rem 2rem;
    transform: translateY(-115%);
    visibility: hidden;
    transition: transform 0.35s ease, visibility 0.35s;
  }
  .main-nav.is-open { transform: translateY(0); visibility: visible; }
  .main-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
  }
  .main-nav li { width: 100%; }
  .nav-link {
    display: block;
    padding: 0.85rem 0.5rem;
    font-size: 1.1rem;
    border-bottom: 1px solid var(--line);
  }
  .nav-link::after { display: none; }
  .nav-cta {
    display: block;
    text-align: center;
    margin-top: 1rem;
    padding: 0.9rem;
    font-size: 1rem;
  }

  /* Sticky mobile CTA */
  body { padding-bottom: calc(68px + env(safe-area-inset-bottom, 0px)); }
  .sticky-cta {
    display: block;
    position: fixed;
    left: 0.75rem;
    right: 0.75rem;
    bottom: calc(0.75rem + env(safe-area-inset-bottom, 0px));
    z-index: 90;
    background: linear-gradient(120deg, var(--blue), #2456ff);
    color: var(--white);
    text-align: center;
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: 0.03em;
    text-decoration: none;
    padding: 0.95rem 1.5rem;
    border-radius: 999px;
    box-shadow: 0 10px 30px rgba(0, 56, 255, 0.45);
    transition: transform 0.3s ease, opacity 0.3s ease;
  }
  .sticky-cta.is-hidden {
    transform: translateY(160%);
    opacity: 0;
    pointer-events: none;
  }
}