/* ===== БАЗОВЫЕ ПРАВИЛА И ГЛОБАЛЬНЫЕ СТИЛИ ===== */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  padding-top: 76px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.25s ease, color 0.25s ease;
}

main {
  flex: 1 0 auto;
}

/* ===== КАРТОЧКИ И БЛОКИ ===== */
.card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-color);
  border-radius: 12px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  border-color: var(--accent-color);
}

/* Формы и поля ввода */
.form-control {
  background-color: var(--card-bg);
  border-color: var(--card-border);
  color: var(--text-color);
}

.form-control:focus {
  background-color: var(--card-bg);
  border-color: var(--accent-color);
  color: var(--text-color);
  box-shadow: 0 0 0 0.25rem rgba(99, 102, 241, 0.25);
}

/* ===== ФУТЕР ===== */
footer {
  background-color: var(--card-bg);
  border-top: 1px solid var(--card-border);
  color: var(--text-muted);
  padding: 1.5rem 0;
  margin-top: auto;
}

/* Бейджи стека технологий */
.tech-badge {
  background-color: var(--card-bg);
  color: var(--text-color);
  border: 1px solid var(--card-border);
  font-weight: 500;
  padding: 0.45rem 0.75rem;
  font-size: 0.85rem;
  border-radius: 6px;
}

.tech-pill {
  background-color: rgba(99, 102, 241, 0.1);
  color: var(--accent-color);
  font-weight: 500;
  font-size: 0.75rem;
  padding: 0.35rem 0.6rem;
  border-radius: 20px;
}

.text-gradient {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.border-dashed {
  border-style: dashed !important;
}

/* Ссылки соцсетей в футере */
.social-link {
  color: var(--text-muted);
  transition: color 0.2s ease, transform 0.2s ease;
  display: inline-flex;
  padding: 6px;
}

.social-link:hover {
  color: var(--accent-color);
  transform: translateY(-2px);
}

/* ===== SCROLL REVEAL MICRO-ANIMATIONS ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-100 {
  transition-delay: 0.1s;
}

.reveal-delay-200 {
  transition-delay: 0.2s;
}

.reveal-delay-300 {
  transition-delay: 0.3s;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* ===== SCROLL PROGRESS BAR ===== */
.scroll-progress-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: var(--accent-gradient);
  z-index: 1060;
  transition: width 0.08s ease-out;
  pointer-events: none;
}

/* ===== FLOATING BACK TO TOP BUTTON ===== */
.back-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1040;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: opacity 0.25s ease, visibility 0.25s ease, transform 0.25s ease, background-color 0.2s ease;
  border: none;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(99, 102, 241, 0.4) !important;
}

/* ===== STYLES FOR PRINTING & PDF EXPORT ===== */
@media print {
  nav, footer, .navbar, .theme-toggle, .back-to-top, .scroll-progress-bar,
  .btn, .input-group, #skillsSearchInput, #skillsCounter, #skillFilters,
  .toast-container, .modal, #certModal, .terminal-actions, .terminal-quick-bar {
    display: none !important;
  }

  body {
    background: #ffffff !important;
    color: #111827 !important;
    padding-top: 0 !important;
    font-size: 10.5pt !important;
    line-height: 1.4 !important;
  }

  main {
    padding-top: 0 !important;
  }

  .card {
    background: #ffffff !important;
    border: 1px solid #d1d5db !important;
    color: #111827 !important;
    box-shadow: none !important;
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .reveal {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }

  a {
    color: #111827 !important;
    text-decoration: none !important;
  }
}