/* ===== Variables ===== */
:root {
  --color-primary: #4a90c4;
  --color-primary-dark: #3574a8;
  --color-primary-light: #e8f2fa;
  --color-accent: #5cb87a;
  --color-text: #2c3e50;
  --color-text-light: #5a6d7e;
  --color-bg: #ffffff;
  --color-bg-alt: #f7f9fc;
  --color-bg-gradient: linear-gradient(135deg, #e8f2fa 0%, #f0f7f4 50%, #faf6f0 100%);
  --color-border: #e2e8f0;
  --shadow-sm: 0 2px 8px rgba(44, 62, 80, 0.06);
  --shadow-md: 0 8px 30px rgba(44, 62, 80, 0.1);
  --shadow-lg: 0 20px 60px rgba(44, 62, 80, 0.12);
  --radius: 12px;
  --radius-lg: 20px;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
  --transition: 0.3s ease;
}

/* ===== Reset ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

/* ===== Layout ===== */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section--gradient {
  background: var(--color-bg-gradient);
}

.section__header {
  max-width: 720px;
  margin-bottom: 48px;
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
  color: var(--color-text);
}

.section__title--center {
  text-align: center;
  margin-bottom: 48px;
}

.section__lead {
  font-size: 1.125rem;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 50px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--outline:hover {
  background: var(--color-primary-light);
}

.btn--white {
  background: #fff;
  color: var(--color-primary);
  border-color: #fff;
}

.btn--white:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
}

.btn--large {
  padding: 18px 36px;
  font-size: 1.0625rem;
}

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}

.header--scrolled {
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

.logo {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.logo__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
}

.logo__subtitle {
  font-size: 0.75rem;
  color: var(--color-text-light);
}

.nav {
  display: flex;
  gap: 32px;
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-light);
  transition: color var(--transition);
}

.nav__link:hover {
  color: var(--color-primary);
}

.header__phone {
  font-weight: 600;
  color: var(--color-primary);
  font-size: 0.9375rem;
  white-space: nowrap;
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
  padding: 120px 0 80px;
  background: var(--color-bg-gradient);
  overflow: hidden;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero__badge {
  display: inline-block;
  padding: 6px 16px;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 50px;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--color-text);
}

.hero__title em {
  font-style: normal;
  color: var(--color-primary);
}

.hero__subtitle {
  font-size: 1.125rem;
  color: var(--color-text-light);
  margin-bottom: 32px;
  line-height: 1.8;
  max-width: 520px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__photo {
  position: relative;
}

.hero__photo img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  width: 100%;
  max-width: 480px;
  margin-left: auto;
}

.hero__photo::before {
  content: '';
  position: absolute;
  inset: -20px -20px 20px 20px;
  background: var(--color-primary-light);
  border-radius: var(--radius-lg);
  z-index: -1;
}

/* ===== Course Stats ===== */
.course-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.stat-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition);
}

.stat-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.stat-card__number {
  display: block;
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-card__label {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

.highlight-box {
  background: var(--color-primary-light);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 32px 36px;
}

.highlight-box p {
  margin-bottom: 12px;
  font-size: 1.0625rem;
  line-height: 1.8;
}

.highlight-box p:last-child {
  margin-bottom: 0;
}

.highlight-box strong {
  color: var(--color-primary-dark);
}

/* ===== Journey ===== */
.journey {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.journey__step {
  flex: 1;
  min-width: 160px;
  max-width: 220px;
  text-align: center;
  padding: 28px 20px;
  background: var(--color-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.journey__step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.journey__step--final {
  background: var(--color-primary);
  color: #fff;
}

.journey__step--final h3,
.journey__step--final p {
  color: #fff;
}

.journey__icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.journey__step h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.journey__step p {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

.journey__arrow {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  color: var(--color-primary);
  padding-top: 40px;
}

/* ===== Features Grid ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: all var(--transition);
}

.feature-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.feature-card__icon {
  font-size: 2rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ===== Transform Block ===== */
.transform-block {
  display: flex;
  align-items: center;
  gap: 60px;
}

.transform-block__visual {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}

.transform-person {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  font-weight: 700;
  text-align: center;
}

.transform-person span {
  font-size: 1.5rem;
}

.transform-person small {
  font-size: 0.75rem;
  font-weight: 500;
  opacity: 0.8;
}

.transform-person--real {
  background: #fff;
  border: 3px solid var(--color-border);
  color: var(--color-text-light);
}

.transform-person--ideal {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-md);
}

.transform-arrow {
  width: 80px;
  color: var(--color-primary);
}

.transform-block__text h2 {
  font-family: var(--font-display);
  font-size: 1.75rem;
  margin-bottom: 16px;
}

.transform-block__text p {
  color: var(--color-text-light);
  font-size: 1.0625rem;
  line-height: 1.8;
}

/* ===== Method Grid ===== */
.method-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.method-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  position: relative;
  transition: all var(--transition);
}

.method-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}

.method-card--wide {
  grid-column: 1 / -1;
}

.method-card__num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-primary-light);
  line-height: 1;
  margin-bottom: 12px;
}

.method-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.method-card p {
  color: var(--color-text-light);
  margin-bottom: 12px;
  line-height: 1.7;
}

.method-card p:last-child {
  margin-bottom: 0;
}

.method-card__note {
  font-size: 0.875rem;
  font-style: italic;
  padding-top: 8px;
  border-top: 1px solid var(--color-border);
}

.method-card__formula {
  display: inline-block;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-weight: 700;
  font-size: 1.125rem;
  padding: 12px 24px;
  border-radius: var(--radius);
  margin: 12px 0;
}

.method-card__list {
  padding-left: 20px;
  margin: 8px 0 12px;
}

.method-card__list li {
  list-style: disc;
  color: var(--color-text-light);
  margin-bottom: 4px;
}

.method-card__conclusion {
  font-weight: 600;
  color: var(--color-text) !important;
  margin-top: 16px !important;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0;
}

.tag {
  display: inline-block;
  padding: 6px 16px;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 50px;
}

/* ===== Safety Grid ===== */
.safety-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.safety-card {
  text-align: center;
  padding: 36px 28px;
  background: var(--color-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.safety-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.safety-card__icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.safety-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.safety-card p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* ===== About ===== */
.about {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 60px;
  align-items: start;
}

.about__photo img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  object-fit: cover;
  width: 100%;
}

.about__content p {
  color: var(--color-text-light);
  margin-bottom: 16px;
  line-height: 1.8;
}

.about__quote {
  margin-top: 24px;
  padding: 28px 32px;
  background: var(--color-primary-light);
  border-radius: var(--radius);
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  font-style: normal;
  color: var(--color-primary-dark);
  line-height: 1.5;
}

.about__quote span {
  display: block;
  margin-top: 8px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-light);
}

/* ===== CTA ===== */
.cta {
  padding: 0;
}

.cta__inner {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  color: #fff;
  margin: 0 24px;
}

.cta__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  margin-bottom: 16px;
}

.cta__text {
  font-size: 1.125rem;
  opacity: 0.9;
  margin-bottom: 32px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.cta__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.footer {
  padding: 40px 0;
  background: var(--color-text);
  color: rgba(255, 255, 255, 0.7);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer__info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer__info .logo__title {
  color: #fff;
}

.footer__phone {
  font-weight: 600;
  color: #fff;
  font-size: 1.0625rem;
}

.footer__phone:hover {
  color: var(--color-primary-light);
}

.footer__copy {
  width: 100%;
  text-align: center;
  font-size: 0.8125rem;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* ===== Responsive ===== */
@media (max-width: 992px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__subtitle {
    max-width: none;
    margin-left: auto;
    margin-right: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__photo img {
    margin: 0 auto;
  }

  .hero__photo::before {
    inset: -12px -12px 12px 12px;
  }

  .course-stats,
  .features-grid,
  .safety-grid {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .about__photo {
    max-width: 380px;
    margin: 0 auto;
  }

  .transform-block {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

  .nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-120%);
    opacity: 0;
    transition: all var(--transition);
    pointer-events: none;
  }

  .nav--open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .burger {
    display: flex;
  }

  .header__phone {
    display: none;
  }

  .course-stats,
  .features-grid,
  .safety-grid {
    grid-template-columns: 1fr;
  }

  .journey__arrow {
    display: none;
  }

  .journey__step {
    max-width: none;
    width: 100%;
  }

  .cta__inner {
    padding: 48px 24px;
    margin: 0 16px;
  }
}