/* styles.css */
/* CSS-переменные */
:root {
  --color-primary: #ff5722;
  --color-secondary: #333;
  --color-bg: #fafafa;
  --color-white: #fff;
  --font-base: 'Helvetica Neue', Arial, sans-serif;
  --transition-speed: 0.3s;
}

/* Mobile-first reset */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-base);
  color: var(--color-secondary);
  background: var(--color-bg);
  line-height: 1.6;
}

/* Container */
.container {
  width: 100%;
  padding: 0 1rem;
  margin: 0 auto;
  max-width: 1200px;
}

/* Utility */
.fade-in {
  opacity: 0;
  animation: fadeIn 0.8s forwards;
}

/* BUTTONS */
.btn {
  display: inline-block;
  text-decoration: none;
  text-align: center;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  font-weight: bold;
  transition: transform var(--transition-speed), background var(--transition-speed);
}
.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn--primary:hover {
  background: darken(var(--color-primary), 10%);
  transform: scale(1.05);
}
.btn--cta {
  background: var(--color-primary);
  color: var(--color-white);
  animation: pulse 2s infinite;
}
.btn--cta:hover {
  transform: scale(1.1);
}

/* HEADER */
.header {
  background: var(--color-white);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}
.header__menu {
  list-style: none;
  display: flex;
  gap: 1rem;
}
.header__menu-item a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--transition-speed);
}
.header__menu-item a:hover {
  color: var(--color-primary);
}

/* SECTION TITLES */
.section {
  padding: 3rem 0;
}
.section-title {
  font-size: 1.75rem;
  margin-bottom: 2rem;
  text-align: center;
}

/* HERO */
.hero__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.hero__title {
  font-size: 2rem;
  margin-bottom: 1rem;
}
.hero__text {
  margin-bottom: 1.5rem;
}
.hero__media img {
  max-width: 100%;
  height: auto;
}

/* FEATURES */
.features__list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.feature {
  text-align: center;
}
.feature__icon {
  margin-bottom: 1rem;
}
.feature__title {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}
.feature__desc {
  color: #555;
}

/* REVIEWS */
.reviews__list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.review {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--color-white);
  padding: 1rem;
  border-radius: 4px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.05);
}
.review__avatar {
  border-radius: 50%;
  flex-shrink: 0;
}
.review__body {
  flex: 1;
}
.review__author {
  margin-top: 0.5rem;
  font-style: italic;
  color: #777;
}

/* FAQ */
.faq__list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.faq__item {
  border: 1px solid #ddd;
  border-radius: 4px;
  background: var(--color-white);
  overflow: hidden;
}
.faq__question {
  padding: 1rem;
  cursor: pointer;
  font-weight: bold;
}
.faq__answer {
  padding: 0 1rem 1rem;
  color: #555;
}

/* CTA */
.cta__inner {
  text-align: center;
  background: var(--color-white);
  padding: 2rem;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.cta__title {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}
.cta__text {
  margin-bottom: 1.5rem;
}

/* FOOTER */
.footer {
  background: var(--color-secondary);
  color: var(--color-white);
  padding: 2rem 0;
}
.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.footer__email {
  color: var(--color-white);
  text-decoration: none;
}
.footer__email:hover {
  text-decoration: underline;
}
.footer__copy {
  font-size: 0.875rem;
}

/* ANIMATIONS */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,87,34,0.7); }
  50%      { box-shadow: 0 0 0 10px rgba(255,87,34,0); }
}

/* Media Queries */
@media (min-width: 768px) {
  .hero__inner { flex-direction: row; text-align: left; }
  .features__list, .reviews__list {
    flex-direction: row;
    justify-content: space-between;
  }
  .features__list .feature,
  .reviews__list .review {
    flex: 1;
    margin: 0 0.5rem;
  }
  .faq__list {
    max-width: 600px;
    margin: 0 auto;
  }
}