/* ============================================================
   FCG — marketing landing site
   Hand-crafted vanilla CSS. No frameworks, no CDN beyond Inter.
   ============================================================ */

:root {
  --bg:            #0a0e17;
  --bg-alt:        #0c111c;
  --surface:       rgba(255, 255, 255, 0.025);
  --surface-2:     rgba(255, 255, 255, 0.04);
  --border:        rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);

  --text:          #e8edf6;
  --text-dim:      #9aa6bd;
  --text-faint:    #6b7689;

  --accent:        #3b82f6;
  --accent-bright: #60a5fa;
  --accent-soft:   rgba(59, 130, 246, 0.14);
  --accent-glow:   rgba(59, 130, 246, 0.30);

  --radius:   16px;
  --radius-sm: 10px;
  --maxw:     1100px;

  --shadow:    0 1px 0 rgba(255,255,255,0.04) inset, 0 18px 50px -20px rgba(0,0,0,0.7);
  --shadow-lg: 0 1px 0 rgba(255,255,255,0.06) inset, 0 30px 80px -28px rgba(0,0,0,0.85);

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 14px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-bright);
}

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, background .15s ease, border-color .15s ease, box-shadow .15s ease;
  white-space: nowrap;
}
.btn--lg { padding: 15px 28px; font-size: 1rem; }
.btn--block { width: 100%; }

.btn--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 24px -8px var(--accent-glow);
}
.btn--primary:hover {
  background: var(--accent-bright);
  transform: translateY(-1px);
  box-shadow: 0 12px 30px -10px var(--accent-glow);
}

.btn--ghost {
  background: var(--surface-2);
  color: var(--text);
  border-color: var(--border-strong);
}
.btn--ghost:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.22);
  transform: translateY(-1px);
}

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10, 14, 23, 0.72);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  display: flex;
  align-items: center;
  gap: 24px;
  height: 66px;
}
.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
}
.brand__mark {
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 0.04em;
  background: linear-gradient(120deg, #fff 0%, var(--accent-bright) 120%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand__full {
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.nav__links {
  display: flex;
  gap: 28px;
  margin-left: auto;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-dim);
}
.nav__links a { transition: color .15s ease; }
.nav__links a:hover { color: var(--text); }
.nav__cta { margin-left: 4px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 130px 0 110px;
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}
.hero__glow {
  position: absolute;
  top: -260px;
  left: 50%;
  transform: translateX(-50%);
  width: 1100px;
  height: 700px;
  background:
    radial-gradient(ellipse 50% 50% at 50% 40%, rgba(59,130,246,0.28), transparent 70%),
    radial-gradient(ellipse 40% 40% at 65% 55%, rgba(34,211,238,0.14), transparent 70%);
  filter: blur(20px);
  pointer-events: none;
}
.hero__inner { position: relative; max-width: 820px; }
.hero__title {
  margin: 0 0 22px;
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.02em;
}
.hero__lede {
  margin: 0 0 34px;
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
  color: var(--text-dim);
  max-width: 640px;
}
.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 22px;
}
.hero__note {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-faint);
  font-weight: 500;
}

/* ---------- Sections ---------- */
.section { padding: 96px 0; }
.section--alt { background: var(--bg-alt); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section__head { max-width: 680px; margin: 0 0 56px; }
.section__title {
  margin: 0 0 14px;
  font-size: clamp(1.9rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.12;
}
.section__sub {
  margin: 0;
  font-size: 1.1rem;
  color: var(--text-dim);
}

/* ---------- Steps ---------- */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  counter-reset: step;
}
.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow);
  transition: transform .2s ease, border-color .2s ease;
}
.step:hover { transform: translateY(-3px); border-color: var(--border-strong); }
.step__num {
  display: block;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent-bright);
  letter-spacing: 0.02em;
  margin-bottom: 16px;
}
.step__title { margin: 0 0 10px; font-size: 1.25rem; font-weight: 700; }
.step__body { margin: 0; color: var(--text-dim); font-size: 0.98rem; }

/* ---------- Tiers ---------- */
.tiers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  align-items: stretch;
}
.tier {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px 28px;
  box-shadow: var(--shadow);
  transition: transform .2s ease, border-color .2s ease;
}
.tier:hover { transform: translateY(-3px); border-color: var(--border-strong); }

.tier--featured {
  background:
    linear-gradient(180deg, var(--accent-soft), rgba(59,130,246,0.02) 60%),
    var(--surface-2);
  border-color: rgba(59,130,246,0.45);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(59,130,246,0.18), 0 24px 70px -30px var(--accent-glow);
  transform: translateY(-8px);
}
.tier--featured:hover { transform: translateY(-11px); }

.tier__badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  background: var(--accent);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 999px;
  box-shadow: 0 8px 22px -8px var(--accent-glow);
}
.tier__tag {
  margin: 0 0 6px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.tier--featured .tier__tag { color: var(--accent-bright); }
.tier__name { margin: 0 0 4px; font-size: 1.5rem; font-weight: 800; letter-spacing: -0.01em; }
.tier__role { margin: 0 0 18px; font-size: 0.92rem; font-weight: 600; color: var(--accent-bright); }
.tier__desc { margin: 0 0 22px; color: var(--text-dim); font-size: 0.98rem; }
.tier__list {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 11px;
}
.tier__list li {
  position: relative;
  padding-left: 26px;
  font-size: 0.95rem;
  color: var(--text);
}
.tier__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 14px;
  height: 8px;
  border-left: 2px solid var(--accent-bright);
  border-bottom: 2px solid var(--accent-bright);
  transform: rotate(-45deg);
}
.tier__cta { margin-top: auto; }

/* ---------- Results / proof ---------- */
.proof {
  max-width: 760px;
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  line-height: 1.6;
  color: var(--text);
  margin: 0 0 52px;
}
.proof strong { color: #fff; font-weight: 700; }
.trust {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.trust__tile {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 26px;
  box-shadow: var(--shadow);
}
.trust__title {
  margin: 0 0 10px;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--accent-bright);
}
.trust__body { margin: 0; color: var(--text-dim); font-size: 0.96rem; }

/* ---------- Contact ---------- */
.contact {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 56px;
  align-items: start;
}
.contact__assure {
  margin: 22px 0 0;
  font-size: 0.92rem;
  color: var(--text-faint);
  font-weight: 500;
}
.form {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
.field { display: flex; flex-direction: column; gap: 8px; }
.field__label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dim);
}
.field__input {
  width: 100%;
  font-family: inherit;
  font-size: 0.98rem;
  color: var(--text);
  background: rgba(0,0,0,0.25);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field__input::placeholder { color: var(--text-faint); }
.field__input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field__input--area { resize: vertical; min-height: 96px; }

/* ---------- Footer ---------- */
.footer {
  border-top: 1px solid var(--border);
  padding: 44px 0;
  background: var(--bg-alt);
}
.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 8px;
}
.footer__mark { font-size: 1.5rem; }
.footer__name {
  margin: 6px 0 0;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
  color: var(--text);
}
.footer__tag { margin: 2px 0 0; color: var(--text-dim); font-size: 0.95rem; }
.footer__copy { margin: 6px 0 0; color: var(--text-faint); font-size: 0.85rem; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 880px) {
  .steps, .tiers, .trust { grid-template-columns: 1fr; }
  .tier--featured { transform: none; order: -1; }
  .tier--featured:hover { transform: translateY(-3px); }
  .contact { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 720px) {
  .nav__links { display: none; }
  .brand__full { display: none; }
  .hero { padding: 96px 0 80px; }
  .section { padding: 72px 0; }
  .section__head { margin-bottom: 40px; }
  .form { padding: 24px; }
  .form__row { grid-template-columns: 1fr; }
}

@media (max-width: 420px) {
  .container { padding: 0 18px; }
  .btn--lg { padding: 14px 22px; }
  .hero__cta .btn { flex: 1 1 100%; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto; transition: none !important; }
}