/* ================================
   MODERN COMPONENTS - CLEAN & SCIENTIFIC
   Enhanced UI components for content pages
   ================================ */

/* ========== Page Hero with Image ========== */
.hero {
  position: relative;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
  overflow: hidden;
  margin-bottom: 0;
  /* Note: height: 100vh removed - caused issues on content pages */
}

.hero .relative {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 400px;
}

.hero img {
  width: 100%;
  height: 100%;
  min-height: 400px;
  object-fit: cover;
  opacity: 0.3;
  position:absolute;
}

.hero-overlay-text,
.hero .project {
  position: relative;
  color: var(--white);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: var(--font-extrabold);
  text-align: center;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  max-width: 95vw;
  padding: 0 2rem;
  margin: 0;
  z-index: 10;
  letter-spacing: 0;
  line-height: 1.2;
}

/* ========== Navigator Layout ========== */
.navigator-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-10); /* Уменьшен gap */
  max-width: 1500px;     /* Расширено */
  padding: var(--space-16) var(--space-4); /* Уменьшены боковые отступы */
}

/* ========== Side Navigator ========== */
.navigator {
  position: sticky;
  top: 90px;
  height: fit-content;
  background: var(--white);
  border: 1px solid gray;
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  margin-left: 30px; /* Отступ слева — ближе к краю */

}

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

.navigator li {
  margin-bottom: var(--space-2);
}

.navigator a {
  display: block;
  padding: var(--space-3) var(--space-4);
  color: var(--gray-600);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  text-decoration: none;
  border-radius: var(--radius-base);
  transition: all var(--transition-base);
  border-left: 3px solid transparent;
}

.navigator a:hover {
  color: var(--primary);
  background: rgba(16, 185, 129, 0.1);
  border-left-color: var(--primary);
  padding-left: calc(var(--space-4) + var(--space-2));
}

.navigator a.active {
  color: var(--primary);
  background: rgba(16, 185, 129, 0.15);
  border-left-color: var(--primary);
  font-weight: var(--font-semibold);
}

/* ========== Content Block ========== */
.content-block {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-10);
  box-shadow: var(--shadow-sm);
  min-height: 600px;
  width: 100%; /* Растягиваем на всю доступную ширину */
  border: 1px solid gray;
}

.content-block h2 {
  color: var(--gray-900);
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  margin-top: var(--space-16);
  margin-bottom: var(--space-6);
  padding-top: var(--space-16);
  border-top: 2px solid var(--gray-200);
  scroll-margin-top: 100px;
}

.content-block h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.content-block h3 {
  color: var(--gray-800);
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
  scroll-margin-top: 100px;
}

.content-block h4 {
  color: var(--gray-800);
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  margin-top: var(--space-8);
  margin-bottom: var(--space-4);
  scroll-margin-top: 100px;
}

.content-block p {
  color: var(--gray-600);
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

.content-block ul,
.content-block ol {
  margin: var(--space-6) 0;
  padding-left: var(--space-8);
  color: var(--gray-600);
}

.content-block li {
  margin-bottom: var(--space-3);
  line-height: var(--leading-relaxed);
  font-size: var(--text-lg);
}


/* ========== Callout Boxes ========== */
.bd-callout {
  padding: var(--space-6);
  margin: var(--space-8) 0;
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.05), rgba(16, 185, 129, 0.1));
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  opacity: 1 !important;
  visibility: visible !important;
}

.bd-callout:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.bd-callout h4 {
  color: var(--primary-dark);
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  margin: 0 0 var(--space-3) 0;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.bd-callout h4::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 24px;
  background: var(--primary);
  border-radius: var(--radius-full);
  flex-shrink: 0;
}

.bd-callout p {
  margin: 0;
  color: var(--gray-700);
  font-size: var(--text-base);
}

/* Callout variants */
.bd-callout-info {
  border-left-color: var(--accent);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.05), rgba(59, 130, 246, 0.1));
}

.bd-callout-info h4 {
  color: var(--accent-dark);
}

.bd-callout-info h4::before {
  background: var(--accent);
}

.bd-callout-warning {
  border-left-color: var(--warning);
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.05), rgba(245, 158, 11, 0.1));
}

.bd-callout-warning h4 {
  color: #b45309;
}

.bd-callout-warning h4::before {
  background: var(--warning);
}

.bd-callout-danger {
  border-left-color: var(--danger);
  background: linear-gradient(135deg, rgba(239, 68, 68, 0.05), rgba(239, 68, 68, 0.1));
}

.bd-callout-danger h4 {
  color: #991b1b;
}

.bd-callout-danger h4::before {
  background: var(--danger);
}

/* ========== Cards ========== */
.card-modern {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

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

.card-modern h3 {
  color: var(--gray-900);
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  margin: 0 0 var(--space-4) 0;
}

.card-modern p {
  color: var(--gray-600);
  margin: 0;
}

/* ========== Image Placeholders ========== */
.image-placeholder {
  aspect-ratio: 16 / 9;
  background: var(--gray-100);
  border: 2px dashed var(--gray-300);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
  color: var(--gray-400);
  font-size: var(--text-lg);
  font-weight: var(--font-medium);
  transition: all var(--transition-base);
}

.image-placeholder:hover {
  border-color: var(--primary);
  background: rgba(16, 185, 129, 0.05);
  color: var(--primary);
}

.image-placeholder i {
  font-size: var(--text-6xl);
  margin-bottom: var(--space-4);
}

/* ========== Scroll to Top Button ========== */
/* Styles moved to design-system.css as #scrollBtn */

/* ========== Responsive Design - Mobile First ========== */

/* Small Mobile Devices (320px - 575px) */
@media (max-width: 575px) {
  /* Hero Section */
  .hero {
    min-height: 220px;
    margin-bottom: 1.5rem;
  }

  .hero .relative {
    min-height: 220px;
  }

  .hero img {
    min-height: 220px;
  }

  .hero-overlay-text,
  .hero .project {
    font-size: clamp(1.6rem, 7vw, 2.3rem);
    padding: 1rem 0.75rem;
    line-height: 1.15;
  }

  /* Navigator Layout */
  .navigator-layout {
    grid-template-columns: 1fr;
    gap: 0.85rem;
    padding: 0.85rem 0.5rem;
    max-width: 100%;
  }

  .navigator {
    position: static !important;
    width: 100%;
    margin-left: 0;
    padding: 0.65rem;
    border-radius: var(--radius-base);
    max-height: none;
    overflow: visible;
  }

  .navigator ul {
    display: block;
    padding: 0;
    margin: 0;
  }

  .navigator > ul {
    display: block;
  }

  .navigator li {
    margin: 0;
    display: block;
    width: 100%;
  }

  .navigator > ul > li {
    border-bottom: 1px solid #e5e7eb;
  }

  .navigator > ul > li:last-child {
    border-bottom: none;
  }

  .navigator a {
    font-size: 0.85rem;
    padding: 0.5rem 0.65rem;
    white-space: normal;
    display: block;
    width: 100%;
  }

  /* Nested navigation in mobile */
  .navigator ul ul {
    display: block;
    padding-left: 0;
    margin: 0;
    background: #f9fafb;
  }

  .navigator ul ul li {
    border-bottom: 1px solid #e5e7eb;
  }

  .navigator ul ul li:last-child {
    border-bottom: none;
  }

  .navigator ul ul a {
    font-size: 0.8rem;
    padding: 0.45rem 0.65rem 0.45rem 1.25rem;
    color: var(--gray-600);
  }

  .navigator ul ul a:hover {
    padding-left: 1.5rem;
  }

  /* Content Block */
  .content-block {
    padding: 0.75rem;
    border-radius: var(--radius-base);
    overflow-x: hidden;
  }

  .content-block h2 {
    font-size: 1.35rem;
    margin-top: 1.75rem;
    padding-top: 1.75rem;
    line-height: 1.3;
  }

  .content-block h2:first-child {
    margin-top: 0;
    padding-top: 0;
  }

  .content-block h3 {
    font-size: 1.1rem;
    margin-top: 1.35rem;
    line-height: 1.35;
  }

  .content-block h4 {
    font-size: 0.95rem;
    margin-top: 1rem;
    font-weight: 600;
    line-height: 1.4;
  }

  .content-block p {
    font-size: 0.875rem;
    line-height: 1.65;
    margin-bottom: 0.85rem;
  }

  .content-block li {
    font-size: 0.85rem;
    line-height: 1.6;
    margin-bottom: 0.4rem;
  }

  .content-block ul,
  .content-block ol {
    padding-left: 1.15rem;
    margin-bottom: 0.85rem;
  }

  /* Images in content */
  .content-block img {
    max-width: 100% !important;
    height: auto !important;
    border-radius: 6px;
    margin: 0.75rem 0;
  }

  .content-block div[style*="text-align: center"] {
    margin: 0.85rem 0 !important;
    padding: 0 !important;
  }

  /* iframes (PDFs, videos) */
  .content-block iframe {
    max-width: 100% !important;
    width: 100% !important;
    height: 300px !important;
    border-radius: 6px;
  }

  .content-block div[style*="height: 600px"] {
    height: 300px !important;
    max-width: 100% !important;
  }

  /* Tables */
  .content-block table {
    font-size: 0.8rem;
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .content-block th,
  .content-block td {
    padding: 0.4rem !important;
  }

  /* Callouts */
  .bd-callout {
    padding: 0.85rem;
    margin: 1.25rem 0;
    border-left-width: 3px;
  }

  .bd-callout h4 {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
  }

  .bd-callout h4::before {
    width: 16px;
    height: 16px;
  }

  .bd-callout p {
    font-size: 0.85rem;
  }

  /* Cards */
  .card-modern {
    padding: 0.85rem;
    margin-bottom: 1rem;
  }

  .card-modern h3 {
    font-size: 1.1rem;
  }

  .card-modern p {
    font-size: 0.875rem;
  }

  /* Image Placeholders */
  .image-placeholder {
    aspect-ratio: 4 / 3;
    padding: 1rem;
    font-size: 0.85rem;
  }

  .image-placeholder i {
    font-size: 2.5rem;
  }

  /* Scroll Button */
  #scrollBtn {
    width: 48px;
    height: 48px;
    font-size: 1rem;
    bottom: 1rem;
    right: 1rem;
  }
  
  .progress-ring {
    width: 48px;
    height: 48px;
  }

  .progress-ring circle {
    stroke-width: 2.5;
  }

  /* Container improvements */
  .container {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }

  .row {
    margin-left: -0.5rem;
    margin-right: -0.5rem;
  }

  .row > * {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }
}

/* Medium Mobile Devices (576px - 767px) */
@media (min-width: 576px) and (max-width: 767px) {
  .hero {
    min-height: 280px;
  }

  .hero .relative,
  .hero img {
    min-height: 280px;
  }

  .hero-overlay-text,
  .hero .project {
    font-size: clamp(2rem, 6vw, 2.75rem);
    padding: var(--space-5);
  }

  .navigator-layout {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    padding: var(--space-10) var(--space-4);
  }

  .navigator {
    position: static;
    width: 100%;
    margin-left: 0;
    padding: var(--space-5);
  }

  .navigator ul {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
  }

  .navigator a {
    font-size: var(--text-sm);
    padding: var(--space-2) var(--space-4);
  }

  .content-block {
    padding: var(--space-6);
  }

  .content-block h2 {
    font-size: var(--text-3xl);
  }

  .content-block h3 {
    font-size: var(--text-xl);
  }

  #scrollBtn {
    width: 48px;
    height: 48px;
    bottom: var(--space-5);
    right: var(--space-5);
  }
  
  .progress-ring {
    width: 48px;
    height: 48px;
  }
}

/* Tablets (768px - 1023px) */
@media (min-width: 768px) and (max-width: 1023px) {
  .hero {
    min-height: 320px;
  }

  .hero .relative,
  .hero img {
    min-height: 320px;
  }

  .hero-overlay-text,
  .hero .project {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    padding: var(--space-6);
  }

  .navigator-layout {
    grid-template-columns: 1fr;
    gap: var(--space-8);
    padding: var(--space-12) var(--space-6);
  }

  .navigator {
    position: static;
    width: 100%;
    margin-left: 0;
    display: flex;
    justify-content: center;
  }

  .navigator ul {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    justify-content: center;
  }

  .navigator a {
    font-size: var(--text-sm);
    padding: var(--space-3) var(--space-5);
  }

  .content-block {
    padding: var(--space-8);
  }

  .bd-callout {
    padding: var(--space-5);
  }

  #scrollBtn {
    width: 52px;
    height: 52px;
    bottom: var(--space-6);
    right: var(--space-6);
  }
  
  .progress-ring {
    width: 52px;
    height: 52px;
  }
}

/* Small Laptops (1024px - 1279px) */
@media (min-width: 1024px) and (max-width: 1279px) {
  .navigator-layout {
    grid-template-columns: 260px 1fr;
    gap: var(--space-8);
    padding: var(--space-14) var(--space-6);
  }

  .navigator {
    margin-left: 20px;
  }

  .content-block {
    padding: var(--space-9);
  }
}

/* Large Screens (1280px+) */
@media (min-width: 1280px) {
  .navigator-layout {
    max-width: 1600px;
    margin: 0 auto;
  }

  .content-block {
    max-width: 100%;
  }
}

/* Touch Device Optimization */
@media (hover: none) and (pointer: coarse) {
  .navigator a,
  .dropdown-item,
  .card-modern {
    min-height: 44px; /* Touch target size */
    display: flex;
    align-items: center;
  }

  .bd-callout:hover {
    transform: none; /* Disable hover transform on touch devices */
  }
}

/* Landscape Tablet Optimization */
@media (min-width: 768px) and (max-width: 1024px) and (orientation: landscape) {
  .navigator-layout {
    grid-template-columns: 220px 1fr;
    gap: var(--space-6);
  }

  .navigator {
    position: sticky;
    top: 90px;
    margin-left: 15px;
  }

  .navigator ul {
    display: block;
  }

  .navigator a {
    font-size: var(--text-sm);
  }
}

/* Print Styles */
@media print {
  .navigator,
  #scrollBtn,
  .scroll-indicator {
    display: none !important;
  }

  .navigator-layout {
    grid-template-columns: 1fr;
  }

  .content-block {
    box-shadow: none;
    border: 1px solid var(--gray-300);
  }
}