/* ===== Design tokens (из Figma "Skilltor re-brand") ===== */
:root {
  --color-primary: #5f9df7;
  --color-accent: #fa6e18;
  --color-text-01: #191c30;
  --color-text-02: #1b1f3b;
  --color-base-01: #ffffff;
  --color-base-02: #f6f6f6;
  --color-base-04: #e0e0e0;
  --color-base-05: #b0b0b0;
  --color-warning: #ffc700;
  --color-link: #526ed3;
  --color-info-bg: rgba(112, 182, 246, 0.12);

  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-badge: "Manrope", var(--font-body);

  --radius-card: 32px;
  --radius-button: 12px;
  --radius-pill: 30px;

  --container-width: 1160px;
  --container-padding: 24px;

  --shadow-card: 0 4px 24px rgba(25, 28, 48, 0.06);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text-01);
  background: var(--color-base-01);
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
}

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

.container {
  max-width: calc(var(--container-width) + var(--container-padding) * 2);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ===== Typography ===== */
h1,
h2,
h3,
p {
  margin: 0;
}

.section-title {
  font-weight: 600;
  font-size: 32px;
  line-height: 1.15;
  margin-bottom: 40px;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 44px;
    line-height: 48px;
  }
}

/* ===== Buttons & badges ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-button);
  font-weight: 700;
  font-size: 15px;
  line-height: 24px;
  padding: 10px 24px;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.btn:hover {
  opacity: 0.88;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-base-01);
}

.btn-primary.btn-large {
  height: 56px;
  padding: 0 24px;
}

.btn-block {
  width: 100%;
  height: 44px;
}

.badge {
  display: inline-flex;
  align-items: center;
  height: 32px;
  padding: 0 16px;
  border-radius: var(--radius-pill);
  font-family: var(--font-badge);
  font-weight: 500;
  font-size: 13px;
  line-height: 20px;
  background: var(--color-info-bg);
  color: var(--color-text-01);
  white-space: nowrap;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.badge.is-active,
.badge:hover {
  background: var(--color-accent);
  color: var(--color-base-01);
}

.badge-sm {
  height: 24px;
  padding: 0 10px;
  font-size: 11px;
  line-height: 16px;
  background: var(--color-accent);
  color: var(--color-base-01);
}

/* ===== Header ===== */
.site-header {
  padding: 32px 0;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.02em;
  color: var(--color-text-01);
}

.logo-footer {
	font-weight: 700;
	font-size: 22px;
	letter-spacing: -0.02em;
	color: var(--color-base-01);
}

.main-nav {
  display: none;
  gap: 48px;
}

.main-nav a {
  font-weight: 500;
  font-size: 17px;
}

.main-nav a:hover {
  color: var(--color-primary);
}

@media (min-width: 900px) {
  .main-nav {
    display: flex;
  }
}

/* ===== Banner ===== */
.banner {
  padding: 24px 0 48px;
}

.banner .container {
  display: flex;
  flex-direction: column-reverse;
  align-items: center;
  gap: 32px;
}

.banner-text {
  display: flex;
  flex-direction: column;
  gap: 24px;
  text-align: center;
}

.banner-text h1 {
  font-weight: 600;
  font-size: 34px;
  line-height: 1.15;
  color: var(--color-text-01);
}

.banner-text p {
  font-size: 17px;
  line-height: 1.5;
  color: var(--color-text-01);
}

.banner-photo {
  width: 100%;
  max-width: 420px;
  aspect-ratio: 601 / 800;
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--color-base-02);
}

.banner-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (min-width: 900px) {
  .banner .container {
    flex-direction: row;
    align-items: center;
    text-align: left;
  }

  .banner-text {
    text-align: left;
    flex: 1;
    max-width: 559px;
  }

  .banner-text h1 {
    font-size: 50px;
    line-height: 56px;
  }

  .banner-text p {
    font-size: 19px;
    line-height: 28px;
  }

  .banner-photo {
    flex-shrink: 0;
    width: 601px;
    max-width: 601px;
  }
}

/* ===== Courses ===== */
.courses {
  padding: 48px 0;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.filter-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  flex: 1;
}

.filter-reset {
  background: transparent;
  border: 1px solid var(--color-base-04);
}

.courses-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 640px) {
  .courses-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.course-card {
  background: var(--color-base-02);
  border-radius: var(--radius-card);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.course-card-image {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--color-base-01);
}

.course-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.course-card-badges {
  position: absolute;
  top: 16px;
  left: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-width: calc(100% - 32px);
}

.course-card-body {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.course-price {
  font-weight: 600;
  font-size: 28px;
  line-height: 1.15;
  color: var(--color-text-01);
}

.course-title {
  font-size: 17px;
  line-height: 1.4;
  color: var(--color-text-01);
  min-height: 2.8em;
}

.course-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  font-size: 15px;
}

.course-meta img {
  width: 24px;
  height: 24px;
}

.course-rating-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.courses-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 48px 0;
  color: var(--color-base-05);
}

/* ===== Reviews / Ratings ===== */
.reviews {
  padding: 48px 0;
  background: var(--color-base-02);
}

.reviews-slider {
  position: relative;
}

.reviews-track {
  display: flex;
  gap: 24px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 8px;
  scrollbar-width: none;
}

.reviews-track::-webkit-scrollbar {
  display: none;
}

.review-card {
  flex: 0 0 85%;
  scroll-snap-align: start;
  background: var(--color-base-01);
  border-radius: var(--radius-card);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

@media (min-width: 640px) {
  .review-card {
    flex-basis: calc(50% - 12px);
  }
}

@media (min-width: 1024px) {
  .review-card {
    flex-basis: calc((100% - 48px) / 3);
  }
}

.review-author {
  font-weight: 600;
  font-size: 17px;
}

.review-course {
  font-size: 13px;
  color: var(--color-base-05);
}

.review-stars {
  color: var(--color-warning);
  letter-spacing: 2px;
}

.review-text {
  font-size: 15px;
  line-height: 1.5;
}

.reviews-controls {
  display: flex;
  justify-content: center;
  margin-top: 32px;
}

/* ===== FAQ ===== */
.faq {
  padding: 48px 0;
}

.faq-item {
  border-bottom: 1px solid var(--color-base-04);
}

.faq-question {
  width: 100%;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0;
  font-size: 17px;
  font-weight: 500;
  text-align: left;
  color: var(--color-text-01);
}

.faq-question .chevron {
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.faq-item.is-open .faq-question .chevron {
  transform: rotate(180deg);
}

.faq-answer {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.25s ease;
}

.faq-item.is-open .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  padding: 0 0 20px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text-02);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-primary);
  color: var(--color-base-01);
  padding: 40px 0;
}

.footer-top {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 24px;
}

.footer-socials {
  display: flex;
  gap: 16px;
}

.footer-socials a {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.8);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 24px;
}

@media (min-width: 700px) {
  .footer-top {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}