/* ─── Hero ─── */
#home {
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  padding-top: 90px;
  padding-bottom: 80px;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 24px;
  max-width: 640px;
  margin: 0 auto;
  width: 100%;
}

.hero-photo {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  box-shadow: 0 0 60px -10px var(--accent-soft);
  object-fit: cover;
  flex-shrink: 0;
}

@media (max-width: 640px) {
  .hero-photo {
    width: 140px;
    height: 140px;
  }
}

.hero-headline {
  color: var(--fg-0);
  max-width: 560px;
}

.hero-sub {
  color: var(--fg-1);
  max-width: 560px;
  font-size: 1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

/* ─── Portfolio ─── */
#portfolio {
  padding: 80px 0;
}

.portfolio-block {
  margin-top: 48px;
}

.portfolio-block-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--fg-0);
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 24px;
}

@media (max-width: 900px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Узкие экраны: «100+ серверов» шире половины 320px-вьюпорта — одна колонка */
@media (max-width: 400px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

/* Cases */
.cases-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 24px;
}

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

/* ─── Resume ─── */
#resume {
  padding: 80px 0;
}

.education-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 16px;
}

.education-item {
  padding: 16px 20px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.education-item-name {
  font-weight: 600;
  color: var(--fg-0);
  font-size: 0.9rem;
}

.education-item-spec {
  font-size: 0.85rem;
  color: var(--fg-1);
  margin-top: 2px;
}

/* Cert grid */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 16px;
}

@media (max-width: 900px) {
  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 540px) {
  .cert-grid {
    grid-template-columns: 1fr;
  }
}

/* ─── Hobbies ─── */
#hobbies {
  padding: 80px 0;
}

/* ─── Contact ─── */
#contact {
  padding: 80px 0;
}

.contact-intro {
  margin-bottom: 32px;
  max-width: 560px;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 40px;
}

.contact-link-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--fg-1);
  transition: color var(--duration-fast) var(--ease);
}

.contact-link-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--accent);
}

.contact-link-item:hover {
  color: var(--fg-0);
}

/* ─── NAS page ─── */
.nas-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
}

.nas-container {
  text-align: center;
  max-width: 900px;
  width: 100%;
}

.nas-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.nas-logo {
  height: 40px;
  width: auto;
  opacity: 0.8;
  transition: opacity var(--duration-fast) var(--ease), transform var(--duration-fast) var(--ease);
}

.nas-logo:hover {
  opacity: 1;
  transform: scale(1.05);
}

.nas-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 32px;
  max-width: 700px;
  margin: 0 auto;
}

@media (max-width: 640px) {
  .nas-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
}

@media (max-width: 400px) {
  .nas-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.nas-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.nas-item img {
  width: 56px;
  height: 56px;
  transition: transform var(--duration-fast) var(--ease);
  margin: 0 auto;
}

.nas-item:hover img {
  transform: scale(1.1);
}

.nas-item span {
  font-size: 12px;
  color: var(--fg-2);
  transition: color var(--duration-fast) var(--ease);
}

.nas-item:hover span {
  color: var(--fg-0);
}