/* =============================================
   NEXUM.COM.KZ — Global Styles
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
  --c-bg:         #100a1f;
  --c-bg2:        #170f2b;
  --c-bg3:        #1f1438;
  --c-surface:    #1a1130;
  --c-border:     rgba(139, 92, 246, 0.15);
  --c-border2:    rgba(255,255,255,0.07);
  --c-primary:    #8B5CF6;
  --c-primary-d:  #6D28D9;
  --c-accent:     #A78BFA;
  --c-text:       #eae6f5;
  --c-muted:      #8d84a8;
  --c-danger:     #ff4d6d;
  --c-success:    #A78BFA;
  --c-gold:       #8B5CF6;
  --radius:       12px;
  --radius-lg:    18px;
  --radius-xl:    24px;
  --max-w:        1200px;
  --shadow-glow:  0 0 40px rgba(139,92,246,0.15);
  --shadow-card:  0 8px 32px rgba(0,0,0,0.4);
  --transition:   all 0.25s cubic-bezier(0.4,0,0.2,1);
}

*,*::before,*::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.65;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--c-bg2); }
::-webkit-scrollbar-thumb { background: var(--c-primary); border-radius: 3px; }

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

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(16, 10, 31, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--c-border);
  transition: var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 24px;
  max-width: var(--max-w);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, #8B5CF6 0%, #5B3FA0 100%);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  color: #fff;
  flex-shrink: 0;
  box-shadow: 0 0 20px rgba(139,92,246,0.35);
}

.brand-text-wrap { display: flex; flex-direction: column; line-height: 1.15; }

.brand-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

.brand-name em {
  font-style: normal;
  background: linear-gradient(90deg, var(--c-primary), var(--c-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.brand-tld {
  font-size: 0.68rem;
  color: var(--c-muted);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.main-nav a {
  color: var(--c-muted);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 8px 12px;
  border-radius: 8px;
  transition: var(--transition);
  white-space: nowrap;
}
.main-nav a:hover, .main-nav a.active {
  color: var(--c-primary);
  background: rgba(139,92,246,0.08);
}

.nav-cta {
  background: linear-gradient(135deg, var(--c-primary), #6D28D9) !important;
  color: #fff !important;
  font-weight: 700 !important;
  padding: 8px 18px !important;
  border-radius: 8px !important;
  margin-left: 8px;
}
.nav-cta:hover {
  box-shadow: 0 4px 16px rgba(139,92,246,0.4) !important;
  background: rgba(139,92,246,0.08) !important;
  color: var(--c-primary) !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: var(--transition);
  font-family: inherit;
  letter-spacing: 0.01em;
}

.btn-primary {
  background: linear-gradient(135deg, var(--c-primary) 0%, #6D28D9 100%);
  color: #fff;
  box-shadow: 0 4px 20px rgba(139,92,246,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(139,92,246,0.45);
}
.btn-outline {
  background: transparent;
  color: var(--c-primary);
  border: 1.5px solid rgba(139,92,246,0.4);
}
.btn-outline:hover {
  background: rgba(139,92,246,0.08);
  border-color: var(--c-primary);
  transform: translateY(-2px);
}
.btn-lg { padding: 16px 36px; font-size: 1.05rem; border-radius: var(--radius-lg); }
.btn-sm { padding: 9px 18px; font-size: 0.85rem; border-radius: 8px; }

/* ── Sections ── */
.section { padding: 80px 0; scroll-margin-top: 84px; }
.section-alt { background: var(--c-bg2); }

.section-label {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-primary);
  background: rgba(139,92,246,0.1);
  border: 1px solid rgba(139,92,246,0.2);
  border-radius: 999px;
  padding: 5px 14px;
  margin-bottom: 14px;
}

/* ── Hero badge (shared across pages) ── */
.cert-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-primary);
  background: rgba(139,92,246,0.1);
  border: 1px solid rgba(139,92,246,0.25);
  border-radius: 999px;
  padding: 6px 16px;
  margin-bottom: 18px;
  animation: fadeInUp 0.4s ease both;
}

.cert-hero-badge svg { width: 14px; height: 14px; flex-shrink: 0; }

.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.7rem, 3.5vw, 2.5rem);
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 14px;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--c-muted);
  max-width: 580px;
  line-height: 1.75;
}

/* ── Footer ── */
.site-footer {
  background: var(--c-bg2);
  border-top: 1px solid var(--c-border2);
  padding: 48px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--c-border2);
  margin-bottom: 28px;
}

.footer-brand-desc {
  color: var(--c-muted);
  font-size: 0.88rem;
  margin-top: 16px;
  line-height: 1.75;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-muted);
  margin-bottom: 16px;
}

.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  color: var(--c-muted);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-links a::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--c-border);
  flex-shrink: 0;
  transition: var(--transition);
}
.footer-links a:hover { color: var(--c-primary); }
.footer-links a:hover::before { background: var(--c-primary); }

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 0.88rem;
  color: var(--c-muted);
}
.footer-contact-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 1px;
  color: var(--c-primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-copy { font-size: 0.83rem; color: var(--c-muted); }
.footer-verify-link a {
  font-size: 0.83rem;
  color: var(--c-primary);
  text-decoration: none;
  font-weight: 600;
}
.footer-verify-link a:hover { color: var(--c-accent); text-decoration: underline; }

/* ── Animations ── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse-ring {
  0%   { box-shadow: 0 0 0 0 rgba(139,92,246,0.5); }
  100% { box-shadow: 0 0 0 16px rgba(139,92,246,0); }
}
@keyframes glow-pulse {
  0%,100% { opacity: 0.5; }
  50%      { opacity: 1; }
}

/* ── Responsive ── */
@media (max-width: 960px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hamburger { display: flex; }
  .main-nav {
    display: none;
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: var(--c-bg2);
    border-bottom: 1px solid var(--c-border);
    padding: 16px 24px 24px;
    flex-direction: column;
    gap: 4px;
    z-index: 199;
    animation: fadeInUp 0.2s ease both;
  }
  .main-nav.open { display: flex; }
  .main-nav a { font-size: 1rem; padding: 12px 16px; }
  .nav-cta { margin-left: 0; }
}

@media (max-width: 580px) {
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .section { padding: 56px 0; }
  .footer-bottom { flex-direction: column; text-align: center; }
}