:root {
  --bg: #f9fafb;
  --surface: #ffffff;
  --border: #e5e7eb;
  --text: #1f2937;
  --text-soft: #4b5563;
  --accent: #0d5bd7;
  --accent-rgb: 13,91,215;
  --accent-alt: #00b5ad;
  --danger: #ff6b5a;
  --radius-sm: 6px;
  --radius: 12px;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow: 0 4px 16px rgba(0,0,0,0.08);
  --grad: linear-gradient(135deg, var(--accent) 0%, var(--accent-alt) 100%);
  font-size: 16px;
}
* { box-sizing: border-box; }
body {
  margin: 0; font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Fira Sans', 'Droid Sans','Helvetica Neue', Arial, sans-serif; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { width: min(1200px, 92%); margin: 0 auto; }
.site-header { position: sticky; top: 0; background: rgba(255,255,255,0.9); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); z-index: 30; }
.header-inner { display: flex; align-items: center; gap: 2rem; padding: .75rem 0; }
.logo { font-size: 1.4rem; font-weight: 700; letter-spacing: .5px; }
.logo span { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.logo.small { font-size: 1.1rem; }

.main-nav ul { list-style: none; display: flex; gap: 1.5rem; margin: 0; padding: 0; }
.main-nav a { font-weight: 500; color: var(--text-soft); }
.main-nav a:hover { color: var(--text); }
.nav-toggle { display: none; background: none; border: none; font-size: 1.4rem; cursor: pointer; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; font-weight: 600; font-size: .95rem; padding: .9rem 1.3rem; border-radius: var(--radius-sm); border: 1px solid transparent; cursor: pointer; transition: background .25s, color .25s, box-shadow .25s; }
.btn.primary { background: var(--grad); color: #fff; box-shadow: var(--shadow-sm); }
.btn.primary:hover { box-shadow: var(--shadow); }
.btn.ghost { background: #ffffff; border-color: var(--border); color: var(--text-soft); }
.btn.ghost:hover { color: var(--text); border-color: var(--accent); }
.btn.inline { padding: .5rem .9rem; font-size: .8rem; }
.btn.outline { background: transparent; color: var(--accent); border-color: var(--accent); }
.btn.outline:hover { background: rgba(var(--accent-rgb), .08); }
.btn.big { font-size: 1.05rem; padding: 1.1rem 1.6rem; border-radius: var(--radius); }
.cta-small { margin-left: auto; }

.hero { padding: 4.5rem 0 3.5rem; background: radial-gradient(circle at 35% 40%, #eef5ff, #f9fafb 60%); }
.hero-inner { display: grid; gap: 3rem; grid-template-columns: repeat(auto-fit, minmax(300px,1fr)); align-items: center; }
.hero-text h1 { font-size: clamp(2rem,5vw,3.1rem); line-height: 1.1; margin: 0 0 1rem; }
.lead { font-size: 1.15rem; line-height: 1.5; color: var(--text-soft); }
.hero-actions { margin: 1.7rem 0 1.2rem; display: flex; gap: 1rem; flex-wrap: wrap; }
.hero-bullets { list-style: none; padding: 0; margin: 1.4rem 0 0; display: grid; gap: .5rem; font-size: .9rem; color: var(--text-soft); }
.hero-bullets li { display: flex; gap: .5rem; }
.hero-media { display: flex; flex-direction: column; gap: 1.2rem; align-items: center; }
.photo-placeholder { 
  width: 240px; 
  height: 240px; 
  border-radius: 50%; 
  overflow: hidden; 
  background: var(--grad); 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  box-shadow: 0 8px 24px rgba(var(--accent-rgb), 0.15), 0 4px 8px rgba(0,0,0,0.1); 
  padding: 4px;
  position: relative;
}
.photo-placeholder img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
.media-card {
  background: var(--surface);
  padding: 1.5rem 1.5rem 1.4rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  max-width: 400px;
  position: relative;
}
.media-card h3 {
  margin: 0 0 .7rem;
  font-size: 1.18rem;
  font-weight: 700;
}
.media-card p {
  font-size: .93rem;
  color: var(--text-soft);
  margin: 0 0 1.1rem;
  line-height: 1.5;
}
.media-card .tick.compact {
  list-style: none;
  padding: 0;
  margin: 0 0 1.1rem 0;
  font-size: .92rem;
  color: var(--text);
  display: grid;
  gap: .45rem;
}
.media-card .tick.compact li {
  padding-left: 1.1rem;
  position: relative;
  border-left: 2px solid var(--accent);
  background: none;
}
.media-card .tick.compact li:before {
  content: '';
  display: none;
}
.media-card .quote {
  font-style: italic;
  font-size: .93rem;
  color: var(--text);
  margin: 0;
  padding: 1rem 0 0 1.2rem;
  border-left: 3px solid var(--accent);
  line-height: 1.6;
}

.value { padding: 3.5rem 0 3rem; }
.value-grid { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); }
.value-item { background: var(--surface); padding: 1.3rem 1.2rem 1.2rem; border: 1px solid var(--border); border-radius: var(--radius-sm); position: relative; }
.value-item h3 { margin-top: 0; font-size: 1.02rem; }

/* About */
.about { padding: 3.5rem 0; }
.about-grid { display: grid; gap: 2.5rem; grid-template-columns: repeat(auto-fit,minmax(300px,1fr)); }
.about-aside { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 1.2rem 1.1rem; box-shadow: var(--shadow-sm); }
.tick.compact li { padding-left: 1.1rem; }

/* Target Audience */
.target-audience { padding: 3.5rem 0; background: linear-gradient(180deg, rgba(var(--accent-rgb),.03), transparent 60%); }
.audience-grid { display: grid; gap: 1.8rem; grid-template-columns: repeat(auto-fit,minmax(280px,1fr)); margin-top: 1.5rem; }
.audience-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.5rem 1.4rem; box-shadow: var(--shadow-sm); }
.audience-item h3 { margin: 0 0 .7rem; font-size: 1.1rem; }
.audience-item p { margin: 0; font-size: .9rem; color: var(--text-soft); line-height: 1.5; }

/* Courses */
.courses { padding: 3.5rem 0; background: linear-gradient(180deg, rgba(var(--accent-rgb),.02), transparent 70%); }
.courses-grid { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit,minmax(340px,1fr)); margin-top: 1.5rem; }
.course-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.6rem 1.5rem 1.4rem; display: flex; flex-direction: column; gap: 1rem; box-shadow: var(--shadow); transition: transform .2s, box-shadow .2s; }
.course-card:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,.12); }
.course-card header h3 { margin: 0 0 .5rem; font-size: 1.2rem; line-height: 1.3; color: var(--text); }
.course-card .subtitle { margin: 0; font-size: .82rem; color: var(--text-soft); letter-spacing: .2px; line-height: 1.4; }
.program-mini { list-style: none; padding: 0; margin: .8rem 0 .8rem; display: grid; gap: .5rem; font-size: .8rem; color: var(--text-soft); line-height: 1.4; }
.program-mini li strong { color: var(--accent); font-weight: 600; }
.cta-row { display: flex; gap: .8rem; flex-wrap: wrap; margin-top: auto; }
.details-panel { margin-top: .6rem; padding-top: .6rem; border-top: 1px solid var(--border); font-size: .78rem; color: var(--text-soft); line-height: 1.5; }
.details-panel[hidden] { display: none !important; }

/* Schedule */
.schedule { padding: 3.5rem 0; background: linear-gradient(180deg, rgba(var(--accent-rgb),0.05), transparent 60%); }
.schedule-grid { display: grid; gap: 1.5rem; grid-template-columns: repeat(auto-fit,minmax(280px,1fr)); margin-top: 1.2rem; }
.schedule-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 1.1rem 1.1rem .9rem; box-shadow: var(--shadow-sm); }
.schedule-item h3 { margin: 0 0 .4rem; font-size: .95rem; }
.schedule-item p { margin: 0 0 .7rem; font-size: .75rem; color: var(--text-soft); }

.learning-format { padding: 3.5rem 0; }
.format-grid { display: grid; gap: 1.8rem; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); margin-top: 1.5rem; }
.format-item { text-align: center; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.8rem 1.4rem; box-shadow: var(--shadow-sm); }
.format-icon { font-size: 2.5rem; margin-bottom: .8rem; }
.format-item h3 { margin: 0 0 .6rem; font-size: 1.05rem; }
.format-item p { margin: 0; font-size: .88rem; color: var(--text-soft); }

.expertise, .pedagogy, .program, .feedback, .other-course, .faq, .cta-final { padding: 3.5rem 0; }
.split { display: grid; gap: 2.5rem; grid-template-columns: repeat(auto-fit,minmax(280px,1fr)); }
.tick { list-style: none; padding: 0; margin: .8rem 0 0; display: grid; gap: .6rem; font-size: .9rem; }
.tick li { padding-left: 1.3rem; position: relative; }
.tick li:before { content: '✓'; position: absolute; left: 0; top: 0; color: var(--accent); font-weight: 600; }

.approach-grid { display: grid; gap: 1.4rem; grid-template-columns: repeat(auto-fit,minmax(240px,1fr)); }
.approach-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 1.1rem 1.1rem .9rem; }
.approach-item h3 { margin: 0 0 .5rem; font-size: .95rem; }
.approach-item p { margin: 0; font-size: .85rem; color: var(--text-soft); }

.program-list { margin: 1.6rem 0 1.2rem; padding-left: 1.2rem; line-height: 1.55; }
.program-list li { margin: .5rem 0; }
.secondary-note { font-size: .8rem; color: var(--text-soft); }
.cta-block { margin: 2rem 0 0; }

.feedback-grid { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit,minmax(260px,1fr)); }
.feedback-item { background: var(--surface); border: 1px dashed var(--border); min-height: 140px; border-radius: var(--radius-sm); padding: .9rem; font-size: .85rem; color: var(--text-soft); display: flex; align-items: center; justify-content: center; text-align: center; }
.feedback-placeholder { text-align: center; padding: 2rem 1rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); }
.feedback-placeholder p { margin: 0; font-size: .95rem; color: var(--text-soft); max-width: 600px; margin: 0 auto; }
.note { font-size: .75rem; color: var(--text-soft); margin-top: 1rem; }

.faq details { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: .8rem .9rem .7rem; margin-bottom: .7rem; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq p { font-size: .85rem; color: var(--text-soft); }

.cta-final { background: radial-gradient(circle at 65% 40%, #eefdfd, #f9fafb 60%); }
.final-inner { text-align: center; max-width: 800px; margin: 0 auto; }
.telegram-chats { display: flex; gap: 2rem; justify-content: center; flex-wrap: wrap; margin: 2rem 0; }
.tg-link { display: inline-flex; align-items: center; gap: .6rem; font-size: 1rem; font-weight: 500; color: var(--text); padding: .8rem 1.2rem; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--surface); transition: all .2s; text-decoration: none; }
.tg-link:hover { color: var(--accent); border-color: var(--accent); box-shadow: var(--shadow-sm); text-decoration: none; }
.tg-link svg { flex-shrink: 0; }

/* Contact Form */
.contact-form { padding: 3.5rem 0; background: linear-gradient(180deg, rgba(var(--accent-rgb),.02), transparent 60%); }
.section-intro { max-width: 600px; margin: 0 auto 1.5rem; text-align: center; color: var(--text-soft); }
.toggle-form-btn { display: block; margin: 0 auto 1.5rem; }
.contact-form-inner { max-width: 600px; margin: 0 auto; background: var(--surface); padding: 2rem; border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; margin-bottom: .5rem; font-weight: 600; font-size: .9rem; }
.form-group input, .form-group textarea { width: 100%; padding: .8rem 1rem; border: 1px solid var(--border); border-radius: var(--radius-sm); font-family: inherit; font-size: .95rem; transition: border-color .2s; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(var(--accent-rgb),.1); }
.contact-form-inner button { width: 100%; margin-top: .5rem; }
.form-status { text-align: center; margin-top: 1rem; font-size: .9rem; padding: .8rem; border-radius: var(--radius-sm); }
.form-status.success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.form-status.error { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }

.site-footer { background: #101826; color: #d1d5db; padding: 2.6rem 0 2.9rem; font-size: .85rem; }
.footer-grid { display: grid; gap: 2.5rem; grid-template-columns: repeat(auto-fit,minmax(200px,1fr)); }
.footer-brand { display: flex; flex-direction: column; gap: .5rem; }
.copyright { font-size: .82rem; color: #9ca3af; margin: 0; }
.foot-links, .foot-channels, .foot-chats { display: grid; gap: .4rem; }
.foot-links h4, .foot-channels h4, .foot-chats h4 { margin: 0 0 .6rem; font-size: .9rem; color: #fff; }
.site-footer a { color: #d1d5db; }
.site-footer a:hover { color: #fff; }
.foot-note { font-size: .85rem; color: #9ca3af; margin: 0; }

h2 { font-size: clamp(1.5rem,3.4vw,2.2rem); margin: 0 0 1.3rem; line-height: 1.2; }
section p { max-width: 720px; }

@media (max-width: 820px) {
  .main-nav ul { display: none; position: absolute; top: 100%; right: 1rem; background: var(--surface); padding: .8rem 1rem; border: 1px solid var(--border); border-radius: var(--radius-sm); flex-direction: column; min-width: 180px; box-shadow: var(--shadow); }
  .main-nav ul.open { display: flex; }
  .nav-toggle { display: inline-block; }
  .cta-small { display: none; }
  .hero { padding-top: 3.2rem; }
  .media-card { max-width: 100%; }
}

@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1215; --surface: #1b2025; --border: #2a3139; --text: #f0f2f4; --text-soft: #c2c9d1; }
  .value-item, .approach-item, .media-card, .faq details, .feedback-item { border-color: #2a3139; }
  .site-header { background: rgba(27,32,37,0.9); border-color: #2a3139; }
  .hero { background: radial-gradient(circle at 35% 40%, #1b2025, #0f1215 60%); }
  .cta-final { background: radial-gradient(circle at 65% 40%, #1b2025, #0f1215 60%); }
}

/* Utility */
.placeholder { opacity: .55; font-style: italic; }

/* Hub Page Styles */
.hub-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 158px); /* 100vh minus footer height */
  padding: 2rem 0;
}

.hub-header {
  text-align: center;
  margin-bottom: 3rem;
}

.hub-photo {
  border-radius: 50%;
  margin: 0 auto 1.5rem;
  box-shadow: 0 8px 24px rgba(var(--accent-rgb), 0.15), 0 4px 8px rgba(0,0,0,0.1);
  border: 4px solid var(--surface);
}

.hub-header h1 {
  font-size: clamp(2.2rem, 5vw, 3rem);
  margin: 0 0 0.5rem;
}

.hub-subtitle {
  font-size: 1.15rem;
  color: var(--text-soft);
  margin: 0;
  max-width: 100%; /* Override default max-width for this element */
}

.hub-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.hub-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.8rem;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform .2s, box-shadow .2s;
  display: flex;
  flex-direction: column;
}

.hub-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 20px rgba(0,0,0,.12);
}

.hub-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hub-card h2 {
  font-size: 1.5rem;
  margin: 0 0 0.8rem;
}

.hub-card p {
  color: var(--text-soft);
  font-size: .95rem;
  line-height: 1.6;
  margin-bottom: 2rem;
  flex-grow: 1;
}

/* Feedback Section - Carousel */
.feedback {
  padding: 4rem 0;
  background: var(--surface);
}

.feedback h2 {
  text-align: center;
  margin-bottom: 3rem;
}

.feedback-carousel {
  position: relative;
  max-width: 1040px;
  margin: 0 auto;
  padding: 0 70px;
}

.carousel-track-container {
  overflow: hidden;
  border-radius: var(--radius);
}

.carousel-track {
  display: flex;
  transition: transform 0.4s ease-in-out;
}

.feedback-item {
  min-width: 100%;
  padding: 2.8rem;
  border-radius: var(--radius);
  background: linear-gradient(135deg, #f0f7ff 0%, #e8f3ff 100%);
  border-left: 4px solid var(--accent);
  box-shadow: var(--shadow);
  display: grid;
  grid-template-columns: minmax(0,1fr) 220px;
  column-gap: 2rem;
  align-items: center;
}

.feedback-text {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--text);
  margin: 0;
  font-style: italic;
  grid-column: 1;
  max-width: 720px;
  justify-self: center;
}

.feedback-author {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  grid-column: 2;
  align-self: center;
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(13, 91, 215, 0.12);
  border-radius: var(--radius-sm);
  padding: 1.2rem 1.4rem;
  box-shadow: var(--shadow-sm);
}

/* avatar removed by request */

.author-details {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.author-name {
  font-weight: 700;
  color: var(--accent);
  margin: 0;
  font-size: 1.1rem;
}

.author-info {
  font-size: 0.88rem;
  color: var(--text-soft);
  margin: 0;
}

.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: var(--accent);
  color: white;
  border: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 1.8rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  box-shadow: var(--shadow-sm);
  z-index: 10;
  line-height: 1;
  padding: 0;
}

.carousel-btn:hover {
  background: var(--accent-alt);
  box-shadow: var(--shadow);
  transform: translateY(-50%) scale(1.1);
}

.carousel-btn:active {
  transform: translateY(-50%) scale(0.95);
}

.carousel-btn.prev {
  left: 0;
}

.carousel-btn.next {
  right: 0;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.8rem;
  margin-top: 2rem;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  padding: 0;
}

.carousel-dot:hover {
  background: var(--text-soft);
  transform: scale(1.2);
}

.carousel-dot.active {
  background: var(--accent);
  width: 24px;
  border-radius: 5px;
}

@media (max-width: 700px) {
  .hub-selector {
    grid-template-columns: 1fr;
  }

  .feedback-carousel {
    padding: 0 50px;
  }

  .feedback-item {
    padding: 1.8rem;
    grid-template-columns: 1fr;
  }

  .feedback-text {
    font-size: 0.95rem;
  }

  .carousel-btn {
    width: 36px;
    height: 36px;
    font-size: 1.6rem;
  }

  .feedback-author {
    margin-top: 1rem;
    align-self: stretch;
  }
}

@media (max-width: 500px) {
  .feedback-carousel {
    padding: 0 40px;
  }

  .feedback-item {
    padding: 1.5rem;
  }

  .carousel-btn {
    width: 32px;
    height: 32px;
    font-size: 1.4rem;
  }
}