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

:root {
  --color-bg: #faf8f5;
  --color-surface: #ffffff;
  --color-text: #2a2824;
  --color-muted: #5e5a52;
  --color-accent: #b8860b;
  --color-accent-dark: #8a6610;
  --color-accent-soft: #f5ecd6;
  --color-border: #e8e2d6;
  --font-sans: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  --max-width: 1100px;
  --radius: 10px;
  --shadow: 0 2px 12px rgba(42, 40, 36, 0.06);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
}

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

a {
  color: var(--color-accent-dark);
}

a:hover {
  color: var(--color-accent);
}

.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

/* ——— Шапка (как в ТЗ: логотип, имя, контакты справа) ——— */

.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.header-top {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: start;
  padding: 1.25rem 0 1rem;
}

.brand {
  display: flex;
  gap: 1rem;
  align-items: center;
  text-decoration: none;
  color: inherit;
}

.brand__logo {
  flex-shrink: 0;
  height: 64px;
  width: auto;
  object-fit: contain;
}

.brand__title {
  margin: 0;
  font-size: 1.65rem;
  font-weight: 700;
  line-height: 1.2;
}

.brand__subtitle {
  margin: 0.2rem 0 0;
  font-size: 0.92rem;
  color: var(--color-muted);
  max-width: 28rem;
}

.header-contacts {
  text-align: right;
  font-size: 0.9rem;
  color: var(--color-muted);
  max-width: 20rem;
}

.header-contacts p {
  margin: 0 0 0.35rem;
}

.header-contacts a {
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav {
  border-top: 1px solid var(--color-border);
  padding: 0.65rem 0;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
}

.site-nav a {
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  padding: 0.25rem 0;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--color-accent-dark);
  border-bottom-color: var(--color-accent);
}

.nav-toggle {
  display: none;
  margin-left: auto;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  font: inherit;
  cursor: pointer;
}

/* ——— Типографика и секции ——— */

.site-main {
  padding: 2rem 0 3rem;
}

.page-title {
  margin: 0 0 1.5rem;
  font-size: 1.85rem;
  color: var(--color-accent-dark);
}

.hero {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 2rem;
  align-items: center;
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  margin-bottom: 2rem;
}

.hero__lead {
  margin: 0;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--color-text);
}

.hero__text {
  margin: 1rem 0 0;
  font-size: 0.98rem;
  color: var(--color-muted);
}

.hero__photo {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.btn {
  display: inline-block;
  margin-top: 1.25rem;
  padding: 0.75rem 1.5rem;
  background: var(--color-accent);
  color: #fff !important;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.2s;
}

.btn:hover {
  background: var(--color-accent-dark);
  color: #fff;
}

.btn--outline {
  background: transparent;
  color: var(--color-accent-dark) !important;
  border: 2px solid var(--color-accent);
}

.btn--outline:hover {
  background: var(--color-accent-soft);
}

.section {
  margin-bottom: 2.5rem;
}

.section__title {
  margin: 0 0 1rem;
  font-size: 1.5rem;
  color: var(--color-accent-dark);
}

.section__subtitle {
  margin: -0.5rem 0 1.25rem;
  font-size: 0.95rem;
  color: var(--color-muted);
}

.card-grid {
  display: grid;
  gap: 1.25rem;
}

.card-grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card-grid--2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.35rem;
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  color: var(--color-accent-dark);
}

.card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-muted);
}

.price-card .price {
  margin-top: 1rem;
  font-weight: 700;
  color: var(--color-text);
  font-size: 1rem;
}

.price-card .price-note {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-muted);
}

.about-block {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 1.75rem;
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow);
}

.about-sections {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}

.about-section__title {
  margin: 0 0 0.4rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
}

.about-section p {
  margin: 0;
  color: var(--color-muted);
}

.education-block {
  margin-top: 1.5rem;
  padding: 1.25rem 1.35rem;
  background: var(--color-accent-soft);
  border-radius: var(--radius);
  font-size: 0.92rem;
  color: var(--color-text);
}

.education-block__title {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--color-accent-dark);
}

.education-block__intro {
  margin: 0 0 1rem;
  font-size: 0.88rem;
  color: var(--color-muted);
}

.education-block__highlights {
  margin: 0 0 1rem;
  padding-left: 1.2rem;
}

.education-block__highlights li {
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.education-details {
  border-top: 1px solid rgba(184, 134, 11, 0.25);
}

.education-details__summary {
  display: flex;
  align-items: center;
  min-height: 3rem;
  padding: 0.75rem 0.25rem 0.75rem 0;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-accent-dark);
  cursor: pointer;
  list-style: none;
  -webkit-tap-highlight-color: transparent;
}

.education-details__summary::-webkit-details-marker {
  display: none;
}

.education-details__summary::after {
  content: "+";
  margin-left: auto;
  padding-left: 1rem;
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1;
  color: var(--color-accent);
}

.education-details[open] .education-details__summary::after {
  content: "−";
}

.education-details__body {
  padding: 0 0 1rem;
}

.education-details__body ul {
  margin: 0;
  padding-left: 1.2rem;
}

.education-details__body li {
  margin-bottom: 0.45rem;
  color: var(--color-muted);
}

.education-details__body li strong {
  color: var(--color-text);
}

.education-certificates-note {
  margin: 0;
  font-size: 0.88rem;
  color: var(--color-muted);
}

.education-certificates-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.75rem;
  margin-top: 1rem;
}

.education-certificates-grid:not([hidden]) {
  display: grid;
}

.education-certificates-grid a {
  display: block;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--color-border, #e8e2d6);
}

.education-certificates-grid img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

.principles .card {
  border-top: 3px solid var(--color-accent);
}

.cta-strip {
  text-align: center;
  padding: 2rem;
  background: linear-gradient(135deg, var(--color-accent-soft), var(--color-surface));
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.cta-strip h2 {
  margin: 0 0 0.5rem;
  font-size: 1.35rem;
}

.cta-strip p {
  margin: 0 0 1rem;
  color: var(--color-muted);
}

/* Контакты: две колонки */

.contacts-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.contact-form label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
  font-weight: 500;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  margin-bottom: 1rem;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font: inherit;
}

.contact-form textarea {
  min-height: 120px;
  resize: vertical;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.contact-list li {
  margin-bottom: 0.75rem;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}

.social-links a {
  padding: 0.4rem 0.75rem;
  background: var(--color-accent-soft);
  border-radius: var(--radius);
  text-decoration: none;
  font-size: 0.9rem;
}

.articles-empty {
  padding: 2rem;
  text-align: center;
  background: var(--color-surface);
  border-radius: var(--radius);
  color: var(--color-muted);
}

.site-footer {
  padding: 1.75rem 0;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  font-size: 0.875rem;
  color: var(--color-muted);
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
}

.site-footer a {
  text-decoration: none;
}

/* ——— Адаптив ——— */

@media (max-width: 800px) {
  .header-top {
    grid-template-columns: 1fr;
  }

  .header-contacts {
    text-align: left;
    max-width: none;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .hero__photo {
    order: -1;
    max-width: 280px;
    margin-inline: auto;
  }

  .about-block {
    grid-template-columns: 1fr;
  }

  .about-block__photo {
    max-width: 220px;
    margin-inline: auto;
  }

  .contacts-layout {
    grid-template-columns: 1fr;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav ul {
    display: none;
    flex-direction: column;
    padding: 0.5rem 0 0.75rem;
  }

  .site-nav.is-open ul {
    display: flex;
  }

  .site-nav .container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
  }
}