/* ============================================================
   NEXORA PLATFORM UPGRADES v5
   Коммерческие блоки, квиз, лиды, улучшенный каталог
   ============================================================ */

:root {
  --nx-upgrade-glow: 0 28px 90px rgba(99, 102, 241, .22);
}

.upgrade-section {
  position: relative;
  padding: 88px 0;
  overflow: hidden;
}

.upgrade-section::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 16% 18%, rgba(99,102,241,.16), transparent 28%),
    radial-gradient(circle at 90% 12%, rgba(6,182,212,.12), transparent 30%);
}

.upgrade-section > .container { position: relative; z-index: 1; }

.solution-packages {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 36px;
}

.solution-package {
  position: relative;
  min-height: 100%;
  padding: 24px;
  border-radius: 28px;
  border: 1px solid rgba(148,163,184,.18);
  background:
    linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.035)),
    radial-gradient(circle at 20% 0%, rgba(99,102,241,.20), transparent 38%);
  box-shadow: 0 18px 50px rgba(2,6,23,.08);
  transition: transform .24s ease, border-color .24s ease, box-shadow .24s ease;
  overflow: hidden;
}

.solution-package:hover {
  transform: translateY(-8px);
  border-color: rgba(99,102,241,.38);
  box-shadow: var(--nx-upgrade-glow);
}

.solution-package.is-featured {
  border-color: rgba(99,102,241,.52);
  background:
    linear-gradient(180deg, rgba(99,102,241,.18), rgba(6,182,212,.07)),
    rgba(255,255,255,.06);
}

.solution-package__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 10px;
  margin-bottom: 16px;
  border-radius: 999px;
  background: rgba(99,102,241,.12);
  color: var(--primary, #6366F1);
  font-size: 12px;
  font-weight: 900;
}

.solution-package h3 {
  margin: 0 0 8px;
  font-size: 22px;
  letter-spacing: -.04em;
}

.solution-package p {
  min-height: 68px;
  margin: 0 0 18px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.solution-package__price {
  margin: 0 0 18px;
  font-size: 30px;
  font-weight: 900;
  letter-spacing: -.05em;
  color: var(--text-primary);
}

.solution-package__price small {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-tertiary);
}

.solution-package ul {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 0 0 22px;
  list-style: none;
}

.solution-package li {
  display: flex;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.45;
}

.solution-package li::before {
  content: '✓';
  flex: 0 0 auto;
  color: #22C55E;
  font-weight: 900;
}

.solution-package__actions {
  display: grid;
  gap: 10px;
  margin-top: auto;
}

.workshop-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 22px;
  align-items: stretch;
  margin-top: 36px;
}

.workshop-card,
.nx-quiz-card,
.nx-proof-card {
  border-radius: 30px;
  border: 1px solid rgba(148,163,184,.18);
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.035));
  box-shadow: 0 22px 70px rgba(2,6,23,.10);
}

.workshop-card {
  padding: 30px;
}

.workshop-card__steps {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.workshop-step {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px;
  border: 1px solid rgba(148,163,184,.14);
  border-radius: 20px;
  background: rgba(255,255,255,.035);
}

.workshop-step__num {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, #6366F1, #06B6D4);
  color: white;
  font-weight: 900;
}

.workshop-step strong { display:block; margin-bottom: 4px; color: var(--text-primary); }
.workshop-step span { color: var(--text-secondary); font-size: 14px; line-height: 1.55; }

.nx-quiz-card {
  padding: 28px;
  position: relative;
  overflow: hidden;
}

.nx-quiz-card::after {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 210px;
  height: 210px;
  border-radius: 50%;
  background: rgba(6,182,212,.14);
  filter: blur(8px);
}

.nx-quiz-card > * { position: relative; z-index: 1; }

.nx-quiz-grid {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.nx-quiz-row label {
  display: block;
  margin-bottom: 8px;
  font-weight: 800;
  color: var(--text-primary);
}

.nx-quiz-row select,
.nx-quiz-row input,
.nx-quiz-row textarea {
  width: 100%;
  min-height: 46px;
  border-radius: 14px;
  border: 1px solid rgba(148,163,184,.22);
  background: rgba(255,255,255,.06);
  color: var(--text-primary);
  padding: 12px 14px;
  font: inherit;
}

.nx-quiz-row textarea { min-height: 92px; resize: vertical; }

.nx-quiz-result {
  display: none;
  margin-top: 16px;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid rgba(34,197,94,.26);
  background: rgba(34,197,94,.08);
  color: var(--text-secondary);
  line-height: 1.55;
}

.nx-quiz-result.is-open { display: block; }
.nx-quiz-result strong { color: var(--text-primary); }

.nx-proof-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 34px;
}

.nx-proof-card {
  padding: 24px;
}

.nx-proof-card__icon {
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  margin-bottom: 16px;
  border-radius: 16px;
  background: rgba(99,102,241,.12);
  font-size: 24px;
}

.nx-proof-card h3 { margin: 0 0 10px; font-size: 20px; }
.nx-proof-card p { margin: 0; color: var(--text-secondary); line-height: 1.6; }

.nx-catalog-toolbar {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) 180px auto;
  gap: 12px;
  align-items: center;
  margin: 18px 0 26px;
}

.nx-catalog-search,
.nx-catalog-sort {
  min-height: 48px;
  border-radius: 16px;
  border: 1px solid rgba(148,163,184,.22);
  background: rgba(255,255,255,.06);
  color: var(--text-primary);
  padding: 0 16px;
  font: inherit;
}

.nx-catalog-count {
  padding: 13px 16px;
  border-radius: 16px;
  background: rgba(99,102,241,.10);
  color: var(--primary, #6366F1);
  font-size: 13px;
  font-weight: 900;
  text-align: center;
}

.catalog-preview-card {
  transform-origin: center center;
}

.catalog-preview-card:hover {
  z-index: 12;
}

.interactive-preview.is-open {
  outline: 1px solid rgba(99,102,241,.35);
}

.interactive-preview__browser::after {
  content: 'LIVE';
  position: absolute;
  right: 18px;
  bottom: 18px;
  z-index: 3;
  padding: 8px 10px;
  border-radius: 999px;
  background: rgba(34,197,94,.92);
  color: white;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: .08em;
  box-shadow: 0 8px 28px rgba(34,197,94,.28);
}

.nx-sticky-cta {
  position: fixed;
  left: 50%;
  bottom: 18px;
  z-index: 4500;
  transform: translateX(-50%) translateY(110px);
  display: flex;
  align-items: center;
  gap: 12px;
  width: min(720px, calc(100vw - 28px));
  padding: 12px;
  border-radius: 24px;
  border: 1px solid rgba(148,163,184,.20);
  background: rgba(15,23,42,.88);
  color: white;
  box-shadow: 0 28px 90px rgba(2,6,23,.42);
  backdrop-filter: blur(18px);
  opacity: 0;
  transition: .26s ease;
}

.nx-sticky-cta.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.nx-sticky-cta__text {
  flex: 1;
  min-width: 0;
  font-size: 13px;
  line-height: 1.35;
  color: rgba(255,255,255,.72);
}

.nx-sticky-cta__text strong { display:block; color: #fff; font-size: 14px; }
.nx-sticky-cta__close { border: 0; background: transparent; color: rgba(255,255,255,.65); font-size: 22px; cursor: pointer; }

.nx-brief-overlay {
  position: fixed;
  inset: 0;
  z-index: 6000;
  display: none;
  place-items: center;
  padding: 18px;
  background: rgba(2,6,23,.72);
  backdrop-filter: blur(10px);
}

.nx-brief-overlay.is-open { display: grid; }

.nx-brief-modal {
  width: min(760px, 100%);
  max-height: min(760px, calc(100vh - 36px));
  overflow: auto;
  border-radius: 30px;
  border: 1px solid rgba(148,163,184,.22);
  background: #0B1220;
  color: white;
  box-shadow: 0 34px 120px rgba(0,0,0,.55);
}

.nx-brief-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 26px 28px 16px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}

.nx-brief-head h3 { margin: 0 0 6px; font-size: 26px; letter-spacing: -.04em; }
.nx-brief-head p { margin: 0; color: rgba(255,255,255,.66); }
.nx-brief-close { width: 38px; height: 38px; border: 0; border-radius: 999px; color: white; background: rgba(255,255,255,.10); cursor: pointer; font-size: 22px; }

.nx-brief-form {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  padding: 22px 28px 28px;
}

.nx-brief-form label { display: grid; gap: 7px; font-size: 13px; font-weight: 800; color: rgba(255,255,255,.78); }
.nx-brief-form .full { grid-column: 1 / -1; }
.nx-brief-form input,
.nx-brief-form select,
.nx-brief-form textarea {
  width: 100%;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 16px;
  background: rgba(255,255,255,.07);
  color: white;
  padding: 13px 14px;
  font: inherit;
}
.nx-brief-form textarea { min-height: 104px; resize: vertical; }
.nx-brief-form select option { color: #0B1220; }
.nx-brief-submit { grid-column: 1 / -1; min-height: 52px; }
.nx-brief-note { grid-column: 1 / -1; color: rgba(255,255,255,.55); font-size: 12px; line-height: 1.45; }

.admin-leads-grid {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.admin-lead-card {
  padding: 18px;
  border-radius: 20px;
  border: 1px solid rgba(148,163,184,.18);
  background: rgba(255,255,255,.06);
}
.admin-lead-card strong { display:block; margin-bottom: 6px; }
.admin-lead-card span { display:block; color: var(--text-secondary); font-size: 13px; margin-top: 4px; }
.admin-actions { display:flex; flex-wrap:wrap; gap:10px; margin-top:18px; }

[data-theme="dark"] .solution-package,
[data-theme="dark"] .workshop-card,
[data-theme="dark"] .nx-quiz-card,
[data-theme="dark"] .nx-proof-card {
  background: linear-gradient(180deg, rgba(15,23,42,.88), rgba(15,23,42,.58));
  border-color: rgba(148,163,184,.18);
}

@media (max-width: 1080px) {
  .solution-packages { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .workshop-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .upgrade-section { padding: 62px 0; }
  .solution-packages, .nx-proof-grid { grid-template-columns: 1fr; }
  .nx-catalog-toolbar { grid-template-columns: 1fr; }
  .nx-sticky-cta { align-items: stretch; flex-direction: column; bottom: 12px; border-radius: 20px; }
  .nx-sticky-cta .btn { width: 100%; justify-content: center; }
  .nx-sticky-cta__close { position:absolute; top:6px; right:10px; }
  .nx-brief-form { grid-template-columns: 1fr; padding: 18px; }
  .nx-brief-head { padding: 22px 18px 14px; }
}