/* ============================================================================
   Qrauthix design system
   Brand: navy (trust/security) + green (verified/genuine). "Scan. Verify. Trust."
   Built as a layer of custom variables/utility classes on top of vendored
   Bootstrap (grid, navbar collapse JS, form controls) rather than a full
   Bootstrap theme rewrite.
   ========================================================================== */

:root {
  --qx-navy-950: #060f24;
  --qx-navy-900: #0a1a3a;
  --qx-navy-800: #0f254f;
  --qx-navy-700: #163a6b;
  --qx-navy-600: #1e4d8c;
  --qx-navy-500: #2a63ad;
  --qx-navy-100: #e7edf7;
  --qx-navy-50: #f3f6fb;

  --qx-green-700: #0f7a3d;
  --qx-green-600: #15803d;
  --qx-green-500: #1ba64c;
  --qx-green-100: #e1f6e9;

  --qx-red-600: #c0362c;
  --qx-red-100: #fbe9e7;

  --qx-gray-900: #101828;
  --qx-gray-700: #344054;
  --qx-gray-500: #667085;
  --qx-gray-300: #d0d5dd;
  --qx-gray-200: #e4e7ec;
  --qx-gray-100: #f2f4f7;
  --qx-gray-50: #f9fafb;

  --qx-radius: 0.75rem;
  --qx-radius-sm: 0.5rem;
  --qx-shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.06);
  --qx-shadow-md: 0 4px 12px rgba(16, 24, 40, 0.10);
  --qx-shadow-lg: 0 12px 32px rgba(10, 26, 58, 0.16);
  --qx-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--qx-font);
  color: var(--qx-gray-900);
  background: #fff;
  line-height: 1.55;
}

a { color: var(--qx-navy-600); text-decoration: none; }
a:hover { color: var(--qx-navy-700); text-decoration: underline; }

main { display: block; }

code {
  background: var(--qx-gray-100);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  font-size: 0.85em;
}

/* ---------- layout helpers ---------- */
.qx-container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.qx-section { padding: 4.5rem 0; }
.qx-section-sm { padding: 2.75rem 0; }
.qx-section-tight { padding: 2rem 0; }

.qx-section-alt { background: var(--qx-navy-50); }
.qx-section-dark {
  background: linear-gradient(160deg, var(--qx-navy-950), var(--qx-navy-800));
  color: #eef3fc;
}
.qx-section-dark h1, .qx-section-dark h2, .qx-section-dark h3 { color: #fff; }
.qx-section-dark a:not(.qx-btn) { color: #bcd3f7; }

.qx-eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--qx-green-600);
  background: var(--qx-green-100);
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}
.qx-section-dark .qx-eyebrow { color: #bdf3d1; background: rgba(27, 166, 76, 0.18); }

.qx-lead {
  font-size: 1.15rem;
  color: var(--qx-gray-700);
  max-width: 46rem;
}
.qx-section-dark .qx-lead { color: #cfdcf3; }

h1, .qx-h1 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; line-height: 1.12; letter-spacing: -0.02em; }
h2, .qx-h2 { font-size: clamp(1.5rem, 3vw, 2.15rem); font-weight: 800; letter-spacing: -0.01em; }
h3 { font-size: 1.25rem; font-weight: 700; }

.qx-text-center { text-align: center; }
.qx-mx-auto { margin-left: auto; margin-right: auto; }

/* ---------- buttons ---------- */
.qx-btn[hidden] { display: none; } /* author display: inline-flex below otherwise beats the browser's own [hidden] default */
.qx-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  border-radius: var(--qx-radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.05s ease, box-shadow 0.15s ease, background-color 0.15s ease;
  text-decoration: none;
}
.qx-btn:active { transform: translateY(1px); }

.qx-btn-lg { padding: 0.9rem 1.9rem; font-size: 1.05rem; }
.qx-btn-block { width: 100%; }

.qx-btn-primary { background: var(--qx-navy-700); color: #fff; }
.qx-btn-primary:hover { background: var(--qx-navy-800); color: #fff; text-decoration: none; }

.qx-btn-accent { background: var(--qx-green-600); color: #fff; }
.qx-btn-accent:hover { background: var(--qx-green-700); color: #fff; text-decoration: none; }

.qx-btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,0.55); }
.qx-btn-outline:hover { background: rgba(255,255,255,0.1); color: #fff; text-decoration: none; }

.qx-btn-outline-navy { background: #fff; color: var(--qx-navy-700); border-color: var(--qx-navy-200, var(--qx-gray-300)); }
.qx-btn-outline-navy:hover { background: var(--qx-navy-50); color: var(--qx-navy-800); text-decoration: none; }

.qx-btn-ghost { background: transparent; color: inherit; border-color: var(--qx-gray-300); }
.qx-btn-ghost:hover { background: var(--qx-gray-50); text-decoration: none; }

/* ---------- navbar ---------- */
.qx-navbar {
  background: #fff;
  border-bottom: 1px solid var(--qx-gray-200);
  position: sticky;
  top: 0;
  z-index: 1030;
}
.qx-navbar .navbar-brand {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--qx-navy-900) !important;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.qx-brand-logo {
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 0.45rem;
  object-fit: contain;
}
.qx-navbar .nav-link {
  color: var(--qx-gray-700) !important;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.5rem 0.85rem !important;
}
.qx-navbar .nav-link:hover { color: var(--qx-navy-800) !important; }
.qx-navbar .dropdown-menu {
  border: 1px solid var(--qx-gray-200);
  box-shadow: var(--qx-shadow-md);
  border-radius: var(--qx-radius-sm);
}
.qx-navbar .dropdown-item { font-size: 0.92rem; padding: 0.55rem 1rem; }
.qx-navbar .dropdown-item:active { background: var(--qx-navy-50); color: var(--qx-navy-900); }

.qx-nav-user {
  font-size: 0.88rem;
  color: var(--qx-gray-700);
  margin-right: 0.5rem;
}
.qx-logout-form { display: inline; margin: 0; }
.qx-logout-btn {
  background: none;
  border: none;
  padding: 0.5rem 0.6rem;
  font-weight: 600;
  color: var(--qx-gray-700);
  cursor: pointer;
}
.qx-logout-btn:hover { color: var(--qx-red-600); }

/* ---------- hero ---------- */
.qx-hero {
  padding: 5.5rem 0 4.5rem;
  background: radial-gradient(1100px 480px at 85% -10%, rgba(27,166,76,0.20), transparent 60%),
              linear-gradient(160deg, var(--qx-navy-950), var(--qx-navy-800) 70%);
  color: #fff;
}
.qx-hero h1 { color: #fff; max-width: 40rem; }
.qx-hero .qx-lead { color: #d6e2f7; max-width: 34rem; margin-bottom: 2rem; }
.qx-hero-actions { display: flex; flex-wrap: wrap; gap: 0.85rem; margin-bottom: 2.5rem; }
.qx-hero-stats { display: flex; flex-wrap: wrap; gap: 2.5rem; }
.qx-hero-stat b { display: block; font-size: 1.5rem; color: #fff; }
.qx-hero-stat span { font-size: 0.85rem; color: #b7c8e6; }

.qx-hero-panel {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--qx-radius);
  padding: 1.5rem;
  backdrop-filter: blur(2px);
}

.qx-hero-split {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin: 2.5rem 0 3rem;
}
@media (max-width: 860px) {
  .qx-hero-split { grid-template-columns: 1fr; }
}
.qx-hero-card {
  background: #fff;
  border-radius: var(--qx-radius);
  box-shadow: var(--qx-shadow-md);
  padding: 2rem;
  border-top: 5px solid transparent;
}
.qx-hero-card h2 { color: var(--qx-navy-900); margin: 0.7rem 0 0.5rem; font-size: 1.4rem; }
.qx-hero-card > p { color: var(--qx-gray-700); margin-bottom: 1.4rem; }
.qx-hero-card-free { border-top-color: var(--qx-green-600); }
.qx-hero-card-secure { border-top-color: var(--qx-navy-600); }
.qx-hero-card-points { list-style: none; padding: 0; margin: 1.4rem 0 0; font-size: 0.88rem; color: var(--qx-gray-700); }
.qx-hero-card-points li { padding-left: 1.4rem; position: relative; margin-bottom: 0.5rem; }
.qx-hero-card-points li::before { content: "✓"; position: absolute; left: 0; color: var(--qx-green-600); font-weight: 700; }

/* ---------- cards / feature grid ---------- */
.qx-card {
  background: #fff;
  border: 1px solid var(--qx-gray-200);
  border-radius: var(--qx-radius);
  box-shadow: var(--qx-shadow-sm);
  padding: 1.75rem;
}

.qx-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}
@media (max-width: 900px) { .qx-feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 620px) { .qx-feature-grid { grid-template-columns: 1fr; } }

.qx-feature-card {
  background: #fff;
  border: 1px solid var(--qx-gray-200);
  border-radius: var(--qx-radius);
  padding: 1.6rem;
  box-shadow: var(--qx-shadow-sm);
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}
.qx-feature-card:hover { box-shadow: var(--qx-shadow-md); transform: translateY(-2px); }
.qx-feature-icon {
  width: 2.75rem; height: 2.75rem;
  border-radius: 0.6rem;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  background: var(--qx-navy-100); color: var(--qx-navy-700);
  margin-bottom: 1rem;
}
.qx-feature-icon.qx-icon-green { background: var(--qx-green-100); color: var(--qx-green-700); }
.qx-feature-card h3 { margin: 0 0 0.4rem; }
.qx-feature-card p { color: var(--qx-gray-700); margin: 0; font-size: 0.95rem; }

/* ---------- step list (how it works) ---------- */
.qx-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; margin-top: 2.5rem; }
@media (max-width: 900px) { .qx-steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .qx-steps { grid-template-columns: 1fr; } }
.qx-step { position: relative; padding: 1.5rem 1.25rem 1.25rem; background: #fff; border: 1px solid var(--qx-gray-200); border-radius: var(--qx-radius); }
.qx-step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2.25rem; height: 2.25rem; border-radius: 999px;
  background: var(--qx-navy-800); color: #fff; font-weight: 800; margin-bottom: 0.9rem;
}
.qx-step h3 { margin: 0 0 0.35rem; font-size: 1.05rem; }
.qx-step p { color: var(--qx-gray-700); font-size: 0.92rem; margin: 0; }

/* ---------- pricing ---------- */
.qx-pricing-banner {
  background: var(--qx-navy-50);
  border: 1px dashed var(--qx-navy-500);
  color: var(--qx-navy-800);
  border-radius: var(--qx-radius-sm);
  padding: 0.9rem 1.2rem;
  font-size: 0.92rem;
  margin-bottom: 2.5rem;
}
.qx-pricing-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
@media (max-width: 992px) { .qx-pricing-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .qx-pricing-grid { grid-template-columns: 1fr; } }
.qx-price-card {
  background: #fff; border: 1px solid var(--qx-gray-200); border-radius: var(--qx-radius);
  padding: 1.75rem 1.5rem; display: flex; flex-direction: column; box-shadow: var(--qx-shadow-sm);
}
.qx-price-card.qx-price-featured {
  border-color: var(--qx-green-600);
  box-shadow: 0 0 0 3px var(--qx-green-100), var(--qx-shadow-md);
}
.qx-price-name { font-weight: 800; font-size: 1.05rem; margin-bottom: 0.25rem; }
.qx-price-amount { font-size: 2rem; font-weight: 800; color: var(--qx-navy-900); margin: 0.35rem 0 0.2rem; }
.qx-price-amount small { font-size: 0.95rem; font-weight: 500; color: var(--qx-gray-500); }
.qx-price-desc { color: var(--qx-gray-500); font-size: 0.85rem; margin-bottom: 1.1rem; }
.qx-price-features { list-style: none; padding: 0; margin: 0 0 1.4rem; font-size: 0.88rem; color: var(--qx-gray-700); flex: 1; }
.qx-price-features li { padding: 0.35rem 0; border-top: 1px solid var(--qx-gray-100); }
.qx-price-features li:first-child { border-top: none; }
.qx-price-features li::before { content: "✓ "; color: var(--qx-green-600); font-weight: 700; }

/* ---------- badges ---------- */
.qx-badge { display: inline-flex; align-items: center; gap: 0.35rem; padding: 0.25rem 0.7rem; border-radius: 999px; font-size: 0.78rem; font-weight: 700; }
.qx-badge-verified { background: var(--qx-green-100); color: var(--qx-green-700); }
.qx-badge-invalid { background: var(--qx-red-100); color: var(--qx-red-600); }
.qx-badge-secure { background: var(--qx-navy-100); color: var(--qx-navy-700); }
.qx-badge-neutral { background: var(--qx-gray-100); color: var(--qx-gray-700); }

/* ---------- verification result pages (/v/{id}, /secure/{id}) ---------- */
.qx-verify-wrap {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 1rem;
  background: var(--qx-navy-50);
}
.qx-verify-result {
  width: 100%;
  max-width: 30rem;
  background: #fff;
  border-radius: 1rem;
  box-shadow: var(--qx-shadow-lg);
  padding: 2.5rem 2rem;
  text-align: center;
  border-top: 6px solid var(--qx-gray-300);
}
.qx-verify-result h1 { font-size: 1.5rem; margin-bottom: 0.5rem; }
.qx-verify-lead { font-size: 1.02rem; color: var(--qx-gray-700); margin-bottom: 1.25rem; }
.qx-verify-icon {
  width: 4.5rem; height: 4.5rem; margin: 0 auto 1.25rem;
  border-radius: 999px; display: flex; align-items: center; justify-content: center;
  font-size: 2.1rem; font-weight: 800;
}
.qx-verify-success { border-top-color: var(--qx-green-600); }
.qx-icon-success { background: var(--qx-green-100); color: var(--qx-green-700); }
.qx-verify-failure { border-top-color: var(--qx-red-600); }
.qx-icon-failure { background: var(--qx-red-100); color: var(--qx-red-600); }
.qx-verify-secure { border-top-color: var(--qx-navy-700); }
.qx-icon-secure { background: var(--qx-navy-100); color: var(--qx-navy-700); }

.qx-verify-details { text-align: left; margin: 1.25rem 0; border-top: 1px solid var(--qx-gray-100); }
.qx-verify-details > div { display: flex; justify-content: space-between; gap: 1rem; padding: 0.55rem 0; border-bottom: 1px solid var(--qx-gray-100); }
.qx-verify-details dt { color: var(--qx-gray-500); font-size: 0.85rem; margin: 0; }
.qx-verify-details dd { margin: 0; font-weight: 700; font-size: 0.9rem; text-align: right; }

.qx-verify-footnote { font-size: 0.82rem; color: var(--qx-gray-500); margin-top: 1.25rem; }
.qx-app-badges { display: flex; gap: 0.6rem; justify-content: center; flex-wrap: wrap; margin: 1.1rem 0; }
.qx-app-badge {
  border: 1px solid var(--qx-gray-300); border-radius: var(--qx-radius-sm);
  padding: 0.45rem 0.8rem; font-size: 0.78rem; color: var(--qx-gray-500);
  background: var(--qx-gray-50);
}

/* ---------- forms ---------- */
.qx-form-card {
  max-width: 30rem;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--qx-gray-200);
  border-radius: var(--qx-radius);
  box-shadow: var(--qx-shadow-sm);
  padding: 2.25rem 2rem;
}
.qx-form-card.qx-form-wide { max-width: 38rem; }
.qx-field { margin-bottom: 1.1rem; }
.qx-field label { display: block; font-weight: 600; font-size: 0.88rem; margin-bottom: 0.35rem; color: var(--qx-gray-700); }
.qx-field .form-control, .qx-field .form-select {
  border-radius: var(--qx-radius-sm);
  border-color: var(--qx-gray-300);
  padding: 0.6rem 0.75rem;
}
.qx-field .form-control:focus, .qx-field .form-select:focus {
  border-color: var(--qx-navy-500);
  box-shadow: 0 0 0 3px var(--qx-navy-100);
}
.qx-field-hint { font-size: 0.78rem; color: var(--qx-gray-500); margin-top: 0.3rem; }
.qx-field .text-danger { display: block; font-size: 0.8rem; margin-top: 0.3rem; }

.qx-alert { border-radius: var(--qx-radius-sm); padding: 0.85rem 1rem; font-size: 0.9rem; margin-bottom: 1.25rem; }
.qx-alert-error { background: var(--qx-red-100); color: var(--qx-red-600); border: 1px solid rgba(192,54,44,0.25); }
.qx-alert-success { background: var(--qx-green-100); color: var(--qx-green-700); border: 1px solid rgba(21,128,61,0.25); }
.qx-alert-info { background: var(--qx-navy-100); color: var(--qx-navy-800); border: 1px solid rgba(30,77,140,0.2); }

/* ---------- footer ---------- */
.qx-footer {
  background: var(--qx-navy-950);
  color: #b7c8e6;
  padding: 3.5rem 0 1.5rem;
  margin-top: 0;
}
.qx-footer h5 { color: #fff; font-size: 0.85rem; letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 1rem; }
.qx-footer a { color: #b7c8e6; }
.qx-footer a:hover { color: #fff; }
.qx-footer-grid { display: grid; grid-template-columns: 2fr repeat(4, 1fr); gap: 2rem; }
@media (max-width: 900px) { .qx-footer-grid { grid-template-columns: repeat(2, 1fr); } }
.qx-footer ul { list-style: none; padding: 0; margin: 0; }
.qx-footer li { margin-bottom: 0.55rem; font-size: 0.88rem; }
.qx-footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: 2.5rem; padding-top: 1.5rem;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.75rem;
  font-size: 0.8rem; color: #8497bd;
}
.qx-footer-brand { display: flex; align-items: center; gap: 0.5rem; font-weight: 800; color: #fff; margin-bottom: 0.75rem; font-size: 1.05rem; }
.qx-footer-tagline { font-size: 0.85rem; max-width: 20rem; }
.qx-play-badge { display: inline-block; margin-top: 0.9rem; }
.qx-play-badge img { height: 2.75rem; width: auto; }

/* ---------- CTA banner ---------- */
.qx-cta {
  background: linear-gradient(135deg, var(--qx-navy-800), var(--qx-navy-950));
  border-radius: 1.25rem;
  padding: 3rem 2.5rem;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}
.qx-cta h2 { color: #fff; margin: 0 0 0.4rem; }
.qx-cta p { color: #cfdcf3; margin: 0; }

.qx-cta-accent { background: linear-gradient(135deg, var(--qx-green-700), var(--qx-green-500)); }
.qx-cta-accent p { color: #e3f9ea; }

.qx-btn-white-accent { background: #fff; color: var(--qx-green-700); border-color: #fff; }
.qx-btn-white-accent:hover { background: var(--qx-green-100); color: var(--qx-green-700); text-decoration: none; }

/* ---------- misc ---------- */
.qx-divider { height: 1px; background: var(--qx-gray-200); border: none; margin: 2.5rem 0; }
.qx-prose { max-width: 46rem; }
.qx-prose h2 { margin-top: 2.25rem; }
.qx-prose p, .qx-prose li { color: var(--qx-gray-700); }
.qx-muted { color: var(--qx-gray-500); }
.qx-code-block {
  background: var(--qx-navy-950); color: #d7e6ff;
  border-radius: var(--qx-radius-sm); padding: 1.1rem 1.25rem;
  font-family: "SFMono-Regular", Consolas, Menlo, monospace; font-size: 0.82rem;
  overflow-x: auto;
}