/* Переменные цветов и базовые настройки */
:root {
  --color-primary: #6d9a8d; /* мягкий зелёно-бирюзовый */
  --color-secondary: #c8d5b9; /* светлый зелёный */
  --color-accent: #f4d35e; /* тёплый желтый акцент */
  --color-bg: #f8f9f7; /* очень светлый фон */
  --color-text: #333333;
  --color-text-light: #555555;

  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
    Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;

  --shadow-light: rgba(0, 0, 0, 0.1);
  --border-radius: 12px;
}

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

ul, ol {
  list-style-type: none;
  padding: 0;
  margin: 0;
}

body {
  margin: 0;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-primary);
  line-height: 1.6;
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}
a:hover,
a:focus {
  color: var(--color-bg);
  outline: none;
}

/* Стили для header и навигации */
.site-header {
  background: #fff;
  box-shadow: 0 2px 6px var(--shadow-light);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo a {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.nav-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

.nav-links li a {
  font-weight: 600;
  font-size: 1rem;
  padding: 0.25rem 0.5rem;
  border-radius: var(--border-radius);
  transition: background-color 0.3s ease, color 0.3s ease;
}
.nav-links li a:hover,
.nav-links li a:focus {
  background-color: var(--color-primary);
  color: #fff;
  outline: none;
}

/* Hero section */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  background: url(img/main-bg.jpg) center center/cover no-repeat;
  backdrop-filter: blur(10px);
  color: #fff;
  padding: 6rem 2rem;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 70vh;
  position: relative;
  overflow: hidden;
  border-radius: 0 0 60% 60% / 30% 30% 70% 70%;
  clip-path: ellipse(100% 100% at 50% 0%);
}

.hero-content h1 {
  font-size: 3.2rem;
  font-weight: 800;
  margin-bottom: 1rem;
  text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.25);
  line-height: 1.1;
}

.hero-content p {
  font-size: 1.3rem;
  font-weight: 400;
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  text-shadow: 1px 1px 6px rgba(0, 0, 0, 0.15);
}

.btn-primary {
  background-color: var(--color-accent);
  color: #222;
  font-weight: 700;
  padding: 1rem 2.5rem;
  font-size: 1.15rem;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: background-color 0.4s ease, box-shadow 0.3s ease;
  box-shadow: 0 6px 12px rgba(244, 211, 94, 0.5);
  text-transform: uppercase;
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: #f9ca24;
  box-shadow: 0 8px 20px rgba(249, 202, 36, 0.7);
  outline: none;
}

/* Общие отступы для секций */
section {
  padding: 5rem 2rem;
  max-width: 900px;
  margin: 0 auto 4rem auto;
  text-align: center;
}

section h2 {
  font-size: 2.6rem;
  font-weight: 700;
  margin-bottom: 2rem;
  color: var(--color-primary);
  letter-spacing: 1px;
  position: relative;
}

section h2::after {
  content: "";
  display: block;
  width: 80px;
  height: 4px;
  background: var(--color-accent);
  margin: 0.75rem auto 0 auto;
  border-radius: 2px;
}

/* About section */
.about-section p {
  font-size: 1.25rem;
  color: var(--color-text-light);
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Classes section */
.classes-section {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
  background: url(img/yoga-girl.jpg) center center/cover no-repeat;
  background-attachment: fixed;
}

.class-card {
  background: #fff;
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: 0 6px 18px var(--shadow-light);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.class-card:hover,
.class-card:focus-within {
  transform: translateY(-8px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
}

.class-card h3 {
  margin-bottom: 1rem;
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1.5rem;
}

.class-card p {
  color: var(--color-text-light);
  font-size: 1.1rem;
  line-height: 1.5;
}

/* Instructors section */
.instructors-section {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  gap: 3rem;
  justify-content: center;
  flex-wrap: wrap;
  background: url(img/yoga-logo.jpg) center center/cover no-repeat;
  background-attachment: fixed;
}

.instructor-profile {
  background: #fff;
  border-radius: var(--border-radius);
  padding: 2rem;
  box-shadow: 0 6px 16px var(--shadow-light);
  max-width: 280px;
  text-align: center;
  transition: box-shadow 0.3s ease;
}

.instructor-profile:hover,
.instructor-profile:focus-within {
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.15);
}

.instructor-profile img {
  width: 140px;
  height: 140px;
  object-fit: cover;
  border-radius: 50%;
  margin-bottom: 1rem;
  border: 4px solid var(--color-secondary);
  transition: transform 0.3s ease;
}

.instructor-profile:hover img,
.instructor-profile:focus-within img {
  transform: scale(1.05);
}

.instructor-profile h3 {
  font-size: 1.3rem;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.instructor-profile p {
  font-size: 1rem;
  color: var(--color-text-light);
  line-height: 1.4;
}

/* Schedule table */
.schedule-section table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: 0 6px 24px var(--shadow-light);
}

.schedule-section thead {
  background-color: var(--color-primary);
  color: #fff;
}

.schedule-section th,
.schedule-section td {
  padding: 1rem 1.5rem;
  text-align: center;
  border-bottom: 1px solid #e2e2e2;
  font-weight: 600;
}

.schedule-section tbody tr:hover {
  background-color: var(--color-secondary);
  color: var(--color-primary);
  font-weight: 700;
  cursor: default;
}

/* Contact form */
.contact-section form {
  max-width: 600px;
  margin: 0 auto;
  background: #fff;
  padding: 2.5rem 3rem;
  border-radius: var(--border-radius);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.contact-section label {
  font-weight: 600;
  color: var(--color-primary);
  text-align: left;
}

.contact-section input[type="text"],
.contact-section input[type="email"],
.contact-section textarea {
  padding: 0.75rem 1rem;
  font-size: 1rem;
  border: 2px solid var(--color-secondary);
  border-radius: var(--border-radius);
  resize: vertical;
  transition: border-color 0.3s ease;
}

.contact-section input[type="text"]:focus,
.contact-section input[type="email"]:focus,
.contact-section textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 8px var(--color-primary);
}

.contact-section button.btn-primary {
  align-self: center;
  width: 120px;
}

#bericht {
    height: 200px;
    resize: none; 
}

/* Footer */
.site-footer {
  background-color: var(--color-primary);
  color: #fff;
  text-align: center;
  padding: 2rem 1rem;
  font-size: 0.95rem;
  font-weight: 400;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  position: relative;
  z-index: 1100;
}

.menu-toggle .hamburger,
.menu-toggle .hamburger::before,
.menu-toggle .hamburger::after {
  display: block;
  background-color: var(--color-primary);
  height: 3px;
  width: 28px;
  border-radius: 3px;
  position: relative;
  transition: all 0.3s ease-in-out;
}

.menu-toggle .hamburger::before,
.menu-toggle .hamburger::after {
  content: "";
  position: absolute;
  left: 0;
}

.menu-toggle .hamburger::before {
  top: -8px;
}

.menu-toggle .hamburger::after {
  top: 8px;
}

/* Базовое состояние */
.menu-toggle .hamburger,
.menu-toggle .hamburger::before,
.menu-toggle .hamburger::after {
  display: block;
  background-color: var(--color-primary);
  height: 3px;
  width: 28px;
  border-radius: 3px;
  position: relative;
  transition: all 0.3s ease-in-out;
}

.menu-toggle .hamburger::before,
.menu-toggle .hamburger::after {
  content: "";
  position: absolute;
  left: 0;
}

.menu-toggle .hamburger::before {
  top: -8px;
}

.menu-toggle .hamburger::after {
  top: 8px;
}

/* Активное состояние — крестик */
.menu-toggle .hamburger.active {
  background-color: transparent; /* центральная полоска исчезает */
}

.menu-toggle .hamburger.active::before {
  transform: rotate(45deg);
  top: 0;
}

.menu-toggle .hamburger.active::after {
  transform: rotate(-45deg);
  top: 0;
}



/* Мобильная версия */
.menu-toggle .hamburger,
.menu-toggle .hamburger::before,
.menu-toggle .hamburger::after {
  display: block;
  background-color: var(--color-primary);
  height: 3px;
  width: 28px;
  border-radius: 3px;
  position: relative;
  transition: all 0.3s ease-in-out;
}

.menu-toggle .hamburger::before,
.menu-toggle .hamburger::after {
  content: "";
  position: absolute;
  left: 0;
}

.menu-toggle .hamburger::before {
  top: -8px;
}

.menu-toggle .hamburger::after {
  top: 8px;
}

/* Активное состояние — крестик */
.menu-toggle.active .hamburger {
  background-color: transparent; /* центральная полоска исчезает */
}

.menu-toggle.active .hamburger::before {
  transform: rotate(45deg);
  top: 0;
}

.menu-toggle.active .hamburger::after {
  transform: rotate(-45deg);
  top: 0;
}

/* Мобильная версия */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    background-color: var(--color-bg);
    position: absolute;
    top: 60px;
    left: 0;
    padding: 1rem 2rem;
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
    border-radius: 0 0 var(--border-radius) var(--border-radius);
    z-index: 1000;
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links li {
    margin-bottom: 1rem;
  }

  .nav-links li:last-child {
    margin-bottom: 0;
  }

  .navbar {
    flex-direction: column;
    gap: 1rem;
  }

  .nav-links {
    flex-wrap: wrap;
    justify-content: center;
  }

  .instructors-section {
    flex-direction: column;
    justify-content: space-around;
    gap: 2rem;
  }

  .hero-content h1 {
    font-size: 2.4rem;
    padding: 0 1rem;
  }

  section {
    padding: 3rem 1rem;
  }

  .classes-section {
    grid-template-columns: 1fr;
  }

  .instructor-profile {
    margin: 0 auto;
  }
}

@media (max-width: 530px) {
  .schedule-section {
    display: none;
  }
}