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

html,
body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
  background: #050816;
  color: #e5e7eb;
}

body {
  line-height: 1.6;
}

img {
  max-width: 100%;
  display: block;
}

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

.container {
  width: min(1120px, 100% - 32px);
  margin-inline: auto;
}

.section {
  padding: 72px 0;
}

.section-dark {
  background: radial-gradient(circle at top left, #064e3b 0%, transparent 55%),
              radial-gradient(circle at bottom right, #1e3a8a 0%, #020617 55%);
}

.section h2 {
  font-size: 32px;
  margin: 0 0 16px;
}

.section-lead {
  max-width: 760px;
  color: #cbd5f5;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: linear-gradient(to right, rgba(15,23,42,0.95), rgba(2,6,23,0.95));
  border-bottom: 1px solid rgba(148,163,184,0.25);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 8px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  overflow: hidden;
  background: radial-gradient(circle at top left, #22c55e 0%, #0f172a 55%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.logo-title {
  font-weight: 600;
  font-size: 16px;
}

.logo-subtitle {
  font-size: 12px;
  color: #9ca3af;
}

.main-nav {
  display: flex;
  gap: 16px;
  font-size: 14px;
}

.main-nav a {
  opacity: 0.85;
}

.main-nav a:hover {
  opacity: 1;
}

.header-phone {
  padding: 6px 12px;
  border-radius: 999px;
  background: #16a34a;
  color: #ecfdf5;
  font-weight: 500;
  font-size: 14px;
}

.header-phone:hover {
  background: #22c55e;
}

/* Hero */

.hero {
  padding: 72px 0 64px;
  background:
    radial-gradient(circle at top left, rgba(34,197,94,0.25) 0, transparent 55%),
    radial-gradient(circle at bottom right, rgba(59,130,246,0.25) 0, #020617 55%);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1.2fr);
  gap: 40px;
  align-items: flex-start;
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border: 1px solid rgba(148,163,184,0.4);
}

.badge-green {
  background: rgba(22,163,74,0.15);
  border-color: rgba(22,163,74,0.7);
}

.badge-blue {
  background: rgba(59,130,246,0.1);
  border-color: rgba(59,130,246,0.7);
}

.hero h1 {
  font-size: clamp(28px, 3vw, 36px);
  line-height: 1.2;
  margin: 0 0 16px;
}

.accent {
  color: #a5b4fc;
}

.hero-text {
  margin: 0 0 16px;
  color: #e5e7eb;
}

.hero-list {
  margin: 0 0 24px;
  padding-left: 18px;
  color: #d1d5db;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.hero-meta {
  display: grid;
  gap: 8px;
  font-size: 13px;
  color: #9ca3af;
}

.hero-meta-item {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.hero-meta-label {
  font-weight: 500;
  color: #e5e7eb;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-weight: 500;
  font-size: 14px;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease, color 0.12s ease;
}

.btn-primary {
  background: linear-gradient(to right, #22c55e, #16a34a);
  color: #ecfdf5;
  box-shadow: 0 14px 30px rgba(22,163,74,0.35);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 18px 40px rgba(22,163,74,0.45);
}

.btn-secondary {
  background: transparent;
  color: #e5e7eb;
  border: 1px solid rgba(148,163,184,0.7);
}

.btn-secondary:hover {
  background: rgba(15,23,42,0.7);
}

.btn-whatsapp {
  width: 100%;
  background: #16a34a;
  color: #ecfdf5;
  margin-top: 10px;
}

.btn-whatsapp:hover {
  background: #22c55e;
}

.btn-full {
  width: 100%;
}

/* Price card */

.hero-right {
  display: flex;
  justify-content: flex-end;
}

.price-card {
  width: 100%;
  max-width: 340px;
  padding: 20px 20px 18px;
  border-radius: 24px;
  background: radial-gradient(circle at top left, rgba(34,197,94,0.2) 0, rgba(15,23,42,1) 55%);
  box-shadow: 0 24px 60px rgba(15,23,42,0.8);
  border: 1px solid rgba(148,163,184,0.35);
}

.price-card-header {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 10px;
}

.price-card-header h2 {
  font-size: 20px;
  margin: 0;
}

.chip {
  align-self: flex-start;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(148,163,184,0.15);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.price {
  font-size: 14px;
  margin: 0 0 6px;
  color: #e5e7eb;
}

.price span {
  font-size: 22px;
  font-weight: 600;
}

.price-note {
  font-size: 13px;
  color: #c4c7cf;
  margin: 0 0 10px;
}

.price-list {
  margin: 0;
  padding-left: 18px;
  font-size: 13px;
  color: #e5e7eb;
}

.price-footer {
  margin-top: 10px;
  font-size: 12px;
  color: #9ca3af;
}

/* About */

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.8fr);
  gap: 32px;
  align-items: center;
}

.about-photo img {
  border-radius: 24px;
  box-shadow: 0 22px 50px rgba(15,23,42,0.85);
}

.about-text p {
  margin-top: 0;
  margin-bottom: 12px;
}

.about-text ul {
  margin: 0 0 8px;
  padding-left: 18px;
}

.small {
  font-size: 13px;
  color: #9ca3af;
}

/* Universities */

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 12px 0 4px;
}

.pill {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,0.5);
  font-size: 13px;
  background: rgba(15,23,42,0.7);
}

/* Services */

.services-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.5fr);
  gap: 40px;
}

.services-list {
  margin: 0;
  padding-left: 18px;
}

.keywords summary {
  cursor: pointer;
  font-weight: 500;
  margin-bottom: 4px;
}

.keywords p {
  font-size: 13px;
  color: #9ca3af;
}

/* How */

.how-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1.2fr);
  gap: 32px;
  align-items: flex-start;
}

.how-block ol {
  margin: 0;
  padding-left: 20px;
}

.how-mini-grid {
  display: grid;
  gap: 14px;
}

.how-mini-card {
  padding: 14px 14px 12px;
  border-radius: 20px;
  background: rgba(15,23,42,0.9);
  border: 1px solid rgba(148,163,184,0.3);
  font-size: 14px;
}

.how-number {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 4px;
}

/* Prices */

.prices-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1.4fr);
  gap: 32px;
}

.prices-list {
  display: grid;
  gap: 10px;
}

.price-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-radius: 16px;
  background: rgba(15,23,42,0.95);
  border: 1px solid rgba(148,163,184,0.45);
}

.price-label {
  font-size: 14px;
}

.price-value {
  font-weight: 600;
}

/* Request */

.request-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.5fr);
  gap: 36px;
  align-items: flex-start;
}

.lead-form {
  padding: 18px 18px 16px;
  border-radius: 20px;
  background: rgba(15,23,42,0.9);
  border: 1px solid rgba(148,163,184,0.4);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 10px;
}

label {
  font-size: 13px;
  color: #e5e7eb;
}

input,
textarea,
select {
  border-radius: 10px;
  border: 1px solid rgba(148,163,184,0.5);
  background: rgba(15,23,42,0.95);
  padding: 8px 10px;
  font-size: 14px;
  color: #e5e7eb;
  outline: none;
}

input:focus,
textarea:focus,
select:focus {
  border-color: #22c55e;
  box-shadow: 0 0 0 1px rgba(34,197,94,0.5);
}

textarea {
  resize: vertical;
  min-height: 90px;
}

.form-note {
  font-size: 13px;
  margin-top: 8px;
}

/* FAQ */

.faq-grid {
  display: grid;
  gap: 10px;
}

details {
  border-radius: 14px;
  border: 1px solid rgba(148,163,184,0.5);
  padding: 8px 12px;
  background: rgba(15,23,42,0.9);
}

summary {
  cursor: pointer;
  list-style: none;
}

summary::-webkit-details-marker {
  display: none;
}

/* Footer */

.site-footer {
  border-top: 1px solid rgba(148,163,184,0.35);
  padding: 18px 0 20px;
  background: #020617;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 24px;
  font-size: 13px;
  color: #9ca3af;
}

.logo-footer {
  font-weight: 600;
  color: #e5e7eb;
  margin-bottom: 4px;
}

.footer-contacts {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-contacts a {
  color: #cbd5f5;
  font-size: 13px;
}

/* Floating buttons */

.floating-button {
  position: fixed;
  right: 18px;
  width: 46px;
  height: 46px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 13px;
  box-shadow: 0 20px 40px rgba(15,23,42,0.75);
  z-index: 40;
}

.floating-button.wa {
  bottom: 86px;
  background: #16a34a;
  color: #ecfdf5;
}

.floating-button.tg {
  bottom: 30px;
  background: #0ea5e9;
  color: #e0f2fe;
}

.floating-button:hover {
  transform: translateY(-1px);
}

/* Responsive */

@media (max-width: 900px) {
  .hero-inner,
  .about-grid,
  .services-grid,
  .how-grid,
  .prices-grid,
  .request-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-right {
    justify-content: flex-start;
  }

  .main-nav {
    display: none;
  }

  .header-inner {
    justify-content: space-between;
  }
}

@media (max-width: 600px) {
  .hero {
    padding-top: 56px;
  }

  .section {
    padding: 56px 0;
  }

  .floating-button {
    right: 14px;
  }
}


/* --- Дополнительные стили для блога и карточек --- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.mini-card {
  background: #0f172a;
  border: 1px solid #1f2937;
  border-radius: 18px;
  padding: 18px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.18);
}

.mini-card h3 {
  margin-top: 0;
  margin-bottom: 8px;
  font-size: 1.15rem;
}

.mini-card a {
  color: inherit;
  text-decoration: none;
}

.mini-card a:hover {
  text-decoration: underline;
}

.breadcrumbs {
  margin-bottom: 12px;
}

@media (max-width: 980px) {
  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .cards-grid {
    grid-template-columns: 1fr;
  }
}