/* ========================================
   ОБЩИЕ СТИЛИ (для всего сайта)
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background: #faf9f8;
  font-family: system-ui, -apple-system, 'Segoe UI', 'Roboto', sans-serif;
  line-height: 1.5;
  color: #1e1e2a;
  scroll-behavior: smooth;
}

.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

h1, h2, h3 {
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.section ul {
  margin-left: 1.5rem;
}

/* ========================================
   ХЕДЕР И НАВИГАЦИЯ
   ======================================== */
.navbar {
  padding: 1rem 0;
  background: #ffffff;
  border-bottom: 1px solid #e2e2e6;
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  background: rgba(255,255,255,0.94);
  z-index: 10;
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.8rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.logo {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.3px;
  text-decoration: none;
  color: #1e3a2f;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo img {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.logo span span {
  color: #2c6e49;
}

.nav-links {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  font-weight: 500;
  color: #2d3e3b;
  font-size: 0.85rem;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: #1b5e3f;
}

/* ========================================
   КНОПКИ
   ======================================== */
.btn {
  display: inline-block;
  background: #1e3a2f;
  color: white;
  padding: 0.7rem 1.5rem;
  border-radius: 40px;
  text-decoration: none;
  font-weight: 500;
  border: none;
  cursor: pointer;
  transition: background 0.2s;
}

.btn:hover {
  background: #0f2c22;
}

.btn-litres {
  background: #ff5a5f;
}

.btn-litres:hover {
  background: #e04e52;
}

.btn-outline {
  background: transparent;
  border: 1px solid #1e3a2f;
  color: #1e3a2f;
}

.btn-outline:hover {
  background: #1e3a2f;
  color: white;
}

.btn-small {
  padding: 0.3rem 0.8rem;
  font-size: 0.75rem;
}

/* ========================================
   КАРТОЧКИ КНИГ
   ======================================== */
.books-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.book-card {
  background: white;
  border-radius: 24px;
  padding: 1.3rem;
  box-shadow: 0 2px 8px rgba(0,0,0,0.03), 0 0 0 1px #ece8e2;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
}

.book-card:hover {
  box-shadow: 0 8px 20px rgba(0,0,0,0.05), 0 0 0 1px #d4cfc5;
}

.book-status {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
  color: #2c6e49;
  margin-bottom: 0.5rem;
}

.book-status.soon {
  color: #c97e2a;
}

.book-status.idea {
  color: #8a7f6d;
}

.book-number {
  font-size: 0.6rem;
  color: #8a7f6d;
  margin-bottom: 0.25rem;
}

.book-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
  line-height: 1.25;
}

.book-subtitle {
  font-size: 0.8rem;
  color: #2c6e49;
  font-weight: 500;
  margin-bottom: 0.75rem;
}

.book-annotation {
  margin: 0.75rem 0;
  color: #2e2e3a;
  font-size: 0.85rem;
}

.book-annotation p {
  margin-bottom: 0.4rem;
}

/* Блок с кнопками в карточке */
.book-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 0.8rem;
  border-top: 1px dashed #ddd8cf;
}

.book-meta > span:first-child {
  margin-right: auto;
}

/* ========================================
   БЛОК «ДРУГИЕ КНИГИ СЕРИИ»
   ======================================== */
.series-books {
  background: #f7f4ef;
  border-radius: 24px;
  padding: 1.5rem 1.5rem 0.5rem;
  margin: 2.5rem 0 1rem;
}

.series-books h3 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
  color: #1e3a2f;
}

.series-books-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
}

.series-book-item {
  background: white;
  border-radius: 16px;
  padding: 0.8rem 1rem;
  border: 1px solid #e2ddd4;
  text-align: center;
}

.series-book-item .sb-number {
  font-size: 0.6rem;
  color: #8a7f6d;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.series-book-item .sb-title {
  font-weight: 600;
  font-size: 0.9rem;
  color: #1e3a2f;
  margin: 0.2rem 0;
}

.series-book-item .sb-status {
  font-size: 0.65rem;
  color: #2c6e49;
}

.series-book-item .sb-status.soon {
  color: #c97e2a;
}

.series-book-item a {
  text-decoration: none;
  display: block;
}

.series-book-item a:hover .sb-title {
  text-decoration: underline;
}

/* ========================================
   ТАБЛИЦЫ (МАТРИЦЫ)
   ======================================== */
.matrix {
  display: block;
  width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  background: white;
  border: 1px solid #e2ddd4;
  border-radius: 24px;
  padding: 0.5rem 1rem;
  margin: 1.5rem 0;
}

.matrix-item {
  display: flex;
  padding: 0.75rem 0;
  border-bottom: 1px solid #eee8e0;
  gap: 1rem;
  align-items: baseline;
}

.matrix-item:last-child {
  border-bottom: none;
}

.matrix-item.blank {
  background: #f7f3ed;
  border-radius: 12px;
  padding-left: 0.5rem;
  padding-right: 0.5rem;
  border-bottom: none;
  margin-top: 0.25rem;
}

.matrix-question {
  font-weight: 600;
  min-width: 160px;
  color: #1e3a2f;
  flex-shrink: 0;
}

/* ========================================
   ФОРМЫ
   ======================================== */
.form-section {
  background: white;
  border-radius: 32px;
  padding: 2rem;
  margin: 2rem 0;
  border: 1px solid #e2ddd4;
  box-shadow: 0 2px 12px rgba(0,0,0,0.03);
}

.form-section h1 {
  font-size: 1.8rem;
  color: #1e3a2f;
  margin-bottom: 0.5rem;
}

.form-section .description {
  color: #5f6c66;
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: #1e3a2f;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid #ddd8cf;
  border-radius: 60px;
  font-size: 1rem;
  background: #fefaf5;
  font-family: inherit;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: #2c6e49;
}

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.checkbox-group input {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  cursor: pointer;
}

.checkbox-group label {
  font-size: 0.85rem;
  color: #4a5b55;
  line-height: 1.4;
}

.checkbox-group a {
  color: #1e3a2f;
  text-decoration: underline;
}

.btn:disabled {
  background: #b0c0b8;
  cursor: not-allowed;
}

.message {
  margin-top: 1rem;
  padding: 0.8rem;
  border-radius: 60px;
  text-align: center;
  font-size: 0.9rem;
}

.success {
  background: #eef4ed;
  color: #2c6e49;
}

.error {
  background: #fff6e8;
  color: #c97e2a;
}

/* ========================================
   ИНФОБЛОКИ И ЦИТАТЫ
   ======================================== */
.info-block {
  background: #eef4ed;
  padding: 1rem 1.2rem;
  border-radius: 20px;
  margin: 1rem 0;
}

.info-block.warning {
  background: #fdf2f0;
  border-left: 4px solid #b84a3a;
}

.warning-box {
  background: #fff6e8;
  border-left: 4px solid #c97e2a;
  padding: 1.2rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 16px;
}

.warning-box strong {
  color: #c97e2a;
}

.quote {
  font-style: italic;
  padding: 1.2rem 1.8rem;
  background: #f1efe9;
  border-radius: 24px;
  margin: 1.5rem 0;
  color: #2d3e3b;
  font-size: 1.1rem;
}

.highlight-box {
  background: #f7f4ef;
  border-left: 4px solid #b87c4f;
  padding: 1.2rem 1.5rem;
  border-radius: 16px;
  margin: 1rem 0;
}

.highlight-box strong {
  color: #1e3a2f;
}

/* ========================================
   ФУТЕР
   ======================================== */
footer {
  text-align: center;
  padding: 1.5rem 1rem;
  font-size: 0.75rem;
  color: #5f6c66;
  background: #f1efe9;
  margin-top: 1rem;
}

/* ========================================
   АДАПТИВНОСТЬ
   ======================================== */

/* Планшеты и мобильные */
@media (max-width: 640px) {
  .nav-inner {
    flex-direction: column;
    text-align: center;
  }
  .form-section {
    padding: 1.5rem;
  }
  .form-section h1 {
    font-size: 1.5rem;
  }
  .series-books-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .matrix-item {
    flex-direction: column;
    gap: 0.15rem;
    padding: 0.9rem 0;
  }
  .matrix-question {
    min-width: auto;
    font-size: 0.9rem;
  }
}

/* Очень маленькие экраны (телефоны < 550px) */
@media (max-width: 550px) {
  .book-meta {
    flex-direction: column;
    align-items: stretch;
    gap: 0.6rem;
  }
  .book-meta > span:first-child {
    margin-right: 0;
    text-align: center;
    margin-bottom: 0.2rem;
  }
  .book-meta .btn,
  .book-meta .btn-outline {
    display: block;
    text-align: center;
    width: 100%;
  }
  .book-meta > div {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }
}

/* Планшеты и выше */
@media (min-width: 640px) {
  .books-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Десктоп */
@media (min-width: 1024px) {
  .books-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}


/* ========================================
   ФИКС КНОПОК (перебивает инлайн-стили)
   ======================================== */
.btn:hover {
  background: #0f2c22 !important;
}

.btn-litres:hover {
  background: #e04e52 !important;
}

.btn-outline:hover {
  background: #1e3a2f !important;
  color: white !important;
}