/* Quantum Flux Solutions — Landing styles */
:root {
  --bg: #0d1220;
  --bg-alt: #131a2c;
  --card: #1a2338;
  --accent: #6d4aff;
  --accent-2: #00c9a7;
  --text: #e8ecf4;
  --text-dim: #9aa4b8;
  --border: rgba(255,255,255,.08);
  --radius: 14px;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.6; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(10px);
  background: rgba(13,18,32,.85); border-bottom: 1px solid var(--border); }
.nav-inner { max-width: 1100px; margin: 0 auto; padding: 14px 24px;
  display: flex; justify-content: space-between; align-items: center; }
.logo { font-weight: 800; font-size: 1.15rem; }
.logo span { color: var(--accent); }
.nav-links { display: flex; gap: 22px; align-items: center; }
.nav-links a { color: var(--text-dim); text-decoration: none; font-size: .95rem; }
.nav-links a:hover { color: var(--text); }

/* Buttons */
.btn { display: inline-block; cursor: pointer; border: none; border-radius: 10px;
  font-weight: 700; text-decoration: none; transition: transform .15s, opacity .15s; }
.btn:hover { transform: translateY(-1px); opacity: .92; }
.btn-primary { background: linear-gradient(135deg, var(--accent), #8f6bff);
  color: #fff; padding: 12px 22px; }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; }
.btn-sm { padding: 8px 16px; font-size: .9rem; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .5; cursor: wait; transform: none; }

/* Hero */
.hero { padding: 90px 24px 70px; text-align: center;
  background: radial-gradient(ellipse at top, rgba(109,74,255,.18), transparent 60%); }
.hero-inner { max-width: 820px; margin: 0 auto; }
.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; line-height: 1.15; }
.hero h1 em { color: var(--accent-2); font-style: normal; }
.hero-sub { color: var(--text-dim); font-size: 1.15rem; margin: 22px 0 34px; }
.hero-trust { display: flex; gap: 26px; justify-content: center; margin-top: 30px;
  color: var(--text-dim); font-size: .9rem; flex-wrap: wrap; }

/* Sections */
.section { padding: 72px 24px; max-width: 1100px; margin: 0 auto; }
.section-alt { background: var(--bg-alt); max-width: none; }
.section-alt > * { max-width: 1100px; margin-left: auto; margin-right: auto; }
.section-title { text-align: center; font-size: 2rem; margin-bottom: 10px; }
.section-sub { text-align: center; color: var(--text-dim); margin-bottom: 44px; }

/* Services grid */
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 22px; }
.service-card { background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px; display: flex; flex-direction: column;
  transition: border-color .2s, transform .2s; }
.service-card:hover, .service-card.selected { border-color: var(--accent);
  transform: translateY(-3px); }
.service-icon { font-size: 2.2rem; margin-bottom: 12px; }
.service-card h3 { margin-bottom: 10px; font-size: 1.15rem; }
.service-card p { color: var(--text-dim); font-size: .93rem; flex: 1; }
.service-card ul { list-style: none; margin: 16px 0 20px; font-size: .9rem;
  color: var(--text-dim); }
.service-card li strong { color: var(--accent-2); }

/* Steps */
.steps-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 26px; }
.step { background: var(--card); border-radius: var(--radius); padding: 26px; }
.step-num { width: 42px; height: 42px; border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #8f6bff);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; margin-bottom: 14px; }
.step h3 { font-size: 1.05rem; margin-bottom: 8px; }
.step p { color: var(--text-dim); font-size: .92rem; }

/* Plans */
.plans-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px; }
.plan { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 30px; position: relative; }
.plan-featured { border-color: var(--accent); }
.plan-badge { position: absolute; top: -12px; right: 20px; background: var(--accent);
  color: #fff; font-size: .75rem; font-weight: 700; padding: 4px 12px; border-radius: 20px; }
.plan-price { font-size: 2.2rem; font-weight: 800; color: var(--accent-2); margin: 10px 0; }
.plan-price span { font-size: 1rem; color: var(--text-dim); font-weight: 400; }
.plan p { color: var(--text-dim); font-size: .92rem; }

/* Form */
.section-form { max-width: 640px; }
.signup-form { background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 34px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { display: flex; flex-direction: column; margin-bottom: 16px; }
.form-field label { font-size: .85rem; color: var(--text-dim); margin-bottom: 6px; }
.form-field input { background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); padding: 12px 14px; font-size: 1rem; }
.form-field input:focus { outline: none; border-color: var(--accent); }
.checkbox-field { display: flex; gap: 10px; align-items: flex-start; font-size: .82rem;
  color: var(--text-dim); margin: 6px 0 22px; cursor: pointer; }
.checkbox-field input { margin-top: 4px; accent-color: var(--accent); }
.form-status { margin-top: 14px; font-size: .95rem; text-align: center; min-height: 1.4em; }
.form-status.ok { color: var(--accent-2); }
.form-status.error { color: #ff6b6b; }

/* FAQ */
.faq-list { max-width: 760px; margin: 0 auto; }
details { background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); margin-bottom: 12px; padding: 18px 22px; }
summary { cursor: pointer; font-weight: 700; font-size: .98rem; }
details p { margin-top: 12px; color: var(--text-dim); font-size: .93rem; }

/* Footer */
.footer { border-top: 1px solid var(--border); background: var(--bg-alt); }
.footer-inner { max-width: 1100px; margin: 0 auto; padding: 44px 24px; }
.footer-brand { font-weight: 800; margin-bottom: 12px; }
.footer-links { margin-bottom: 18px; }
.footer-links a { color: var(--text-dim); }
.footer-disclaimer { color: var(--text-dim); font-size: .8rem; max-width: 900px;
  margin-bottom: 16px; }
.footer-copy { color: var(--text-dim); font-size: .8rem; }

@media (max-width: 640px) {
  .form-row { grid-template-columns: 1fr; }
  .nav-links a:not(.btn) { display: none; }
}