/* Базовые стили для сайта Champion Cha */
html,
body {
  margin: 0;
  padding: 0;
  font-family: "Arial", "Helvetica Neue", sans-serif;
  color: #2b2b2b;
  background-color: #faf8f4;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Шапка */
.site-header {
  background-color: #3a836b;
  color: #fff;
  padding: 1.2rem 0;
}

.logo {
  margin: 0;
  font-size: 2rem;
  letter-spacing: 1px;
}

.tagline {
  margin: 0.4rem 0 0;
  font-weight: 300;
  font-size: 1rem;
  color: #e6f3ec;
}

/* Герой */
.hero {
  position: relative;
  height: 55vh;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
}

.hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.35);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 650px;
  color: #fff;
  padding: 0 1rem;
}

.hero-content h2 {
  margin-top: 0;
  font-size: 2.2rem;
}

.hero-content p {
  margin: 0.8rem 0 1.4rem;
  line-height: 1.5;
}

.btn-primary {
  display: inline-block;
  padding: 0.6rem 1.4rem;
  background-color: #3a836b;
  color: #fff;
  text-decoration: none;
  border-radius: 4px;
  transition: background-color 0.2s;
  font-weight: 600;
}

.btn-primary:hover {
  background-color: #316e57;
}

.btn-secondary {
  background-color: #e0f0e7;
  color: #3a836b;
  border: none;
  border-radius: 4px;
  padding: 0.4rem 1rem;
  cursor: pointer;
  transition: background-color 0.2s;
}

.btn-secondary:hover {
  background-color: #cfe3d8;
}

/* Основные секции */
.section {
  margin-top: 3rem;
}

.section h2 {
  margin-bottom: 1rem;
  color: #3a836b;
}

.table-wrapper {
  overflow-x: auto;
  background-color: #fff;
  border-radius: 6px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 0.6rem 0.8rem;
  text-align: left;
  border-bottom: 1px solid #e3e1dd;
}

th {
  background-color: #f1f0ee;
  font-weight: 600;
}

tbody tr:nth-child(even) {
  background-color: #faf6f1;
}

/* Форма калькулятора */
.calc-form {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  flex: 1 1 200px;
}

.form-group label {
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
  color: #444;
}

.form-group input,
.form-group select {
  padding: 0.4rem 0.6rem;
  border: 1px solid #ccc;
  border-radius: 4px;
  font-size: 1rem;
}

.calc-result {
  margin-top: 1rem;
  background-color: #fff;
  border-radius: 6px;
  padding: 1rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  color: #333;
}

.calc-result p {
  margin: 0.3rem 0;
}

/* Чат */
.chat-box {
  max-height: 300px;
  overflow-y: auto;
  background-color: #fff;
  border-radius: 6px;
  padding: 1rem;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  margin-bottom: 0.6rem;
}

.chat-box .bot-message,
.chat-box .user-message {
  max-width: 80%;
  padding: 0.5rem 0.8rem;
  border-radius: 12px;
  margin-bottom: 0.5rem;
  line-height: 1.4;
  font-size: 0.95rem;
}

.chat-box .bot-message {
  background-color: #f5faf8;
  align-self: flex-start;
  border: 1px solid #d7e9df;
}

.chat-box .user-message {
  background-color: #e6f3ec;
  align-self: flex-end;
  border: 1px solid #c4dccf;
  text-align: right;
}

.chat-input {
  display: flex;
  gap: 0.5rem;
}

.chat-input input {
  flex: 1;
  padding: 0.5rem 0.8rem;
  border: 1px solid #ccc;
  border-radius: 4px;
}

.site-footer {
  background-color: #3a836b;
  color: #e8f2ed;
  padding: 1rem 0;
  margin-top: 3rem;
  font-size: 0.9rem;
}

.site-footer .small {
  font-size: 0.8rem;
  margin-top: 0.5rem;
  color: #cfe3d8;
}