/* ================================================================
   МАСТЕР-КЛАСС ПО FRONT-END — Главная таблица стилей
   ================================================================ */

/* === ПЕРЕМЕННЫЕ === */
:root {
  --bg-primary:      #080c1e;
  --bg-secondary:    #0d1130;
  --bg-card:         rgba(255,255,255,0.06);
  --bg-card-hover:   rgba(255,255,255,0.10);
  --bg-glass:        rgba(255,255,255,0.05);

  --color-primary:   #4361ee;
  --color-primary-l: #6378f5;
  --color-accent:    #f72585;
  --color-success:   #38d39f;
  --color-warning:   #ffb700;
  --color-danger:    #ef233c;
  --color-info:      #4cc9f0;
  --color-gold:      #FFD700;

  --text-primary:    #ffffff;
  --text-secondary:  rgba(255,255,255,0.65);
  --text-muted:      rgba(255,255,255,0.35);

  --border:          rgba(255,255,255,0.10);
  --border-active:   rgba(67,97,238,0.7);

  --shadow-sm:  0 2px 8px  rgba(0,0,0,0.35);
  --shadow-md:  0 8px 32px rgba(0,0,0,0.45);
  --shadow-lg:  0 16px 48px rgba(0,0,0,0.55);
  --glow-blue:  0 0 24px rgba(67,97,238,0.5);
  --glow-gold:  0 0 24px rgba(255,215,0,0.6);

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  28px;

  --font-main:  'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-mono:  'Courier New', Courier, monospace;

  --transition: 0.2s ease;
  --content-w:  1500px;
  --header-h:   68px;
}

/* === СБРОС И БАЗА === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--color-primary); border-radius: 3px; }

/* === КОНТЕЙНЕР === */
.container {
  max-width: var(--content-w);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* === ТИПОГРАФИКА === */
h1 { font-size: 2.4rem; font-weight: 800; line-height: 1.2; }
h2 { font-size: 1.8rem; font-weight: 700; line-height: 1.3; }
h3 { font-size: 1.2rem; font-weight: 600; }
p  { line-height: 1.65; }

/* === КНОПКИ === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  transition: all var(--transition);
  white-space: nowrap;
  cursor: pointer;
}
.btn:active { transform: scale(0.97); }

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--glow-blue);
}
.btn--primary:hover { background: var(--color-primary-l); transform: translateY(-2px); }

.btn--secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn--secondary:hover { background: var(--bg-card-hover); }

.btn--success {
  background: var(--color-success);
  color: #072;
  font-weight: 700;
}
.btn--success:hover { filter: brightness(1.1); }

.btn--danger {
  background: var(--color-danger);
  color: #fff;
}
.btn--danger:hover { filter: brightness(1.1); }

.btn--accent {
  background: linear-gradient(135deg, var(--color-accent), #7b2fbe);
  color: #fff;
}
.btn--accent:hover { filter: brightness(1.15); transform: translateY(-2px); }

.btn--gold {
  background: linear-gradient(135deg, var(--color-gold), #f0a000);
  color: #1a1000;
  font-weight: 700;
}
.btn--gold:hover { filter: brightness(1.1); }

.btn--sm { padding: 8px 16px; font-size: 0.875rem; border-radius: var(--radius-sm); }
.btn--large { padding: 18px 40px; font-size: 1.2rem; border-radius: var(--radius-lg); }

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
  filter: none !important;
}

/* === КАРТОЧКИ / СТЁКЛА === */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-md);
}

.card--glass {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

/* === ШАПКА САЙТА === */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(8,12,30,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
}

.header-logo-icon {
  font-size: 1.5rem;
}

/* === НАВИГАЦИЯ ШАГОВ === */
.steps-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.step-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 6px 16px;
  border-radius: var(--radius-md);
  transition: all var(--transition);
  min-width: 72px;
}

.step-indicator span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 0.9rem;
  font-weight: 700;
  transition: all var(--transition);
}

.step-indicator small {
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* Неактивный шаг */
.step--inactive span { background: rgba(255,255,255,0.08); color: var(--text-muted); }
.step--inactive small { color: var(--text-muted); }

/* Текущий шаг */
.step--active {
  background: rgba(67,97,238,0.15);
  border: 1px solid rgba(67,97,238,0.4);
}
.step--active span {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--glow-blue);
}
.step--active small { color: var(--color-primary-l); }

/* Завершённый шаг */
.step--done span {
  background: var(--color-success);
  color: #072;
  font-size: 0;
}
.step--done span::after { content: '✓'; font-size: 1rem; }
.step--done small { color: var(--color-success); }

/* === ПОДВАЛ САЙТА === */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  background: rgba(8,12,30,0.85);
  padding: 14px 0;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

/* === ОСНОВНАЯ ОБЛАСТЬ СТРАНИЦЫ === */
.step-main {
  padding: 32px 24px;
  min-height: calc(100vh - var(--header-h) - 56px);
}

body[data-page="step5"] .step-main {
  min-height: auto;
}

.step-intro {
  margin-bottom: 28px;
}

.step-title {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, #fff 40%, var(--color-primary-l));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}

.step-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.panel-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

/* === МОДАЛЬНЫЕ ОКНА === */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fade-in 0.25s ease;
}

.modal-overlay[hidden] { display: none !important; }

.modal {
  background: #12183a;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px 48px;
  max-width: 520px;
  width: 90%;
  text-align: center;
  box-shadow: var(--shadow-lg);
  animation: modal-appear 0.3s cubic-bezier(0.34,1.56,0.64,1);
}

.modal-icon { font-size: 3.5rem; margin-bottom: 16px; }
.modal-title { font-size: 1.6rem; font-weight: 800; margin-bottom: 12px; }
.modal-text { color: var(--text-secondary); margin-bottom: 24px; line-height: 1.6; }
.modal-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes modal-appear {
  from { opacity: 0; transform: scale(0.85) translateY(20px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

/* ================================================================
   ГЛАВНАЯ СТРАНИЦА (index.html)
   ================================================================ */

.bg-particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.bg-particles .particle {
  position: absolute;
  font-family: var(--font-mono);
  color: rgba(67,97,238,0.12);
  user-select: none;
  font-weight: 700;
  animation: particle-drift linear infinite;
}

.bg-particles .particle:nth-child(1)  { left:3%;   top:15%; font-size:28px; animation-duration:18s; animation-delay:0s; }
.bg-particles .particle:nth-child(2)  { left:12%;  top:72%; font-size:20px; animation-duration:22s; animation-delay:-5s; }
.bg-particles .particle:nth-child(3)  { left:22%;  top:35%; font-size:16px; animation-duration:15s; animation-delay:-8s; }
.bg-particles .particle:nth-child(4)  { left:55%;  top:8%;  font-size:22px; animation-duration:20s; animation-delay:-3s; }
.bg-particles .particle:nth-child(5)  { left:70%;  top:55%; font-size:18px; animation-duration:25s; animation-delay:-12s; }
.bg-particles .particle:nth-child(6)  { left:80%;  top:20%; font-size:24px; animation-duration:17s; animation-delay:-7s; }
.bg-particles .particle:nth-child(7)  { left:88%;  top:80%; font-size:16px; animation-duration:21s; animation-delay:-2s; }
.bg-particles .particle:nth-child(8)  { left:40%;  top:85%; font-size:20px; animation-duration:19s; animation-delay:-10s; }
.bg-particles .particle:nth-child(9)  { left:33%;  top:60%; font-size:14px; animation-duration:23s; animation-delay:-16s; }
.bg-particles .particle:nth-child(10) { left:60%;  top:40%; font-size:18px; animation-duration:16s; animation-delay:-4s; }
.bg-particles .particle:nth-child(11) { left:7%;   top:50%; font-size:22px; animation-duration:24s; animation-delay:-9s; }
.bg-particles .particle:nth-child(12) { left:94%;  top:45%; font-size:16px; animation-duration:20s; animation-delay:-14s; }

@keyframes particle-drift {
  0%   { transform: translateY(0px)   rotate(0deg);   opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 1; }
  100% { transform: translateY(-120px) rotate(15deg); opacity: 0; }
}

.index-hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
}

.index-content {
  max-width: var(--content-w);
  width: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 60px;
}

.index-text {
  flex: 1;
  max-width: 860px;
}

.college-badge {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 12px 24px;
  margin-bottom: 24px;
}

.college-logo-placeholder {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card-hover);
}

.college-logo-placeholder img { width: 100%; height: 100%; object-fit: contain; }
.logo-fallback { display: none; font-size: 2rem; }
.college-logo-placeholder img[style*="display:none"] + .logo-fallback { display: flex; }

.college-name { font-size: 0.8rem; color: var(--text-muted); font-weight: 600; letter-spacing: 0.05em; }
.college-fullname { font-size: 1rem; font-weight: 700; color: var(--text-primary); }

.project-badge {
  display: inline-block;
  background: linear-gradient(135deg, rgba(247,37,133,0.2), rgba(123,47,190,0.2));
  border: 1px solid rgba(247,37,133,0.4);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #f099cc;
  letter-spacing: 0.04em;
  margin-bottom: 20px;
}

.hero-title {
  font-size: 3.2rem;
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 24px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--color-primary-l), var(--color-info));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.specialty-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: rgba(67,97,238,0.12);
  border: 1px solid rgba(67,97,238,0.3);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  margin-bottom: 24px;
}

.specialty-code {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--color-primary-l);
  white-space: nowrap;
}

.specialty-title {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1rem;
}

.specialty-qual {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 680px;
}

.hero-steps-preview {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.step-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  min-width: 80px;
}

.step-preview-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: var(--color-primary);
  border-radius: 50%;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
}

.step-preview-text {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.step-preview-arrow {
  color: var(--text-muted);
  font-size: 1.2rem;
}

.cta-button {
  background: linear-gradient(135deg, var(--color-primary), #6a11cb);
  box-shadow: 0 8px 32px rgba(67,97,238,0.5);
  font-size: 1.15rem;
  padding: 20px 48px;
  border-radius: var(--radius-lg);
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(67,97,238,0.65);
  filter: brightness(1.1);
}

/* ================================================================
   ШАГ 1: ВИКТОРИНА
   ================================================================ */

.step1-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 28px;
  align-items: start;
}

/* Quiz panel */
.quiz-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.quiz-progress {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 600;
}

.quiz-progress-bar {
  flex: 1;
  height: 6px;
  background: rgba(255,255,255,0.1);
  border-radius: 3px;
  overflow: hidden;
}

.quiz-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-info));
  border-radius: 3px;
  transition: width 0.5s ease;
}

.quiz-question-card {
  animation: fade-slide-in 0.4s ease;
}

@keyframes fade-slide-in {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.quiz-question-text {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 24px;
  line-height: 1.5;
}

.quiz-answers {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.quiz-answer-btn {
  display: block;
  width: 100%;
  text-align: left;
  padding: 14px 20px;
  background: var(--bg-card-hover);
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition);
}

.quiz-answer-btn:hover:not(:disabled) {
  border-color: var(--color-primary);
  background: rgba(67,97,238,0.15);
  transform: translateX(4px);
}

.quiz-answer-btn.correct {
  border-color: var(--color-success);
  background: rgba(56,211,159,0.15);
  color: var(--color-success);
}

.quiz-answer-btn.wrong {
  border-color: var(--color-danger);
  background: rgba(239,35,60,0.15);
  color: var(--color-danger);
}

.quiz-answer-btn:disabled { cursor: not-allowed; }

/* Knight panel */
.knight-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  text-align: center;
  position: sticky;
  top: calc(var(--header-h) + 16px);
}

.knight-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.knight-container {
  position: relative;
  display: inline-block;
  margin-bottom: 12px;
}

.knight-svg {
  width: 180px;
  height: 270px;
  filter: drop-shadow(0 8px 20px rgba(67,97,238,0.4));
}

/* Knight animation states */
.knight-idle .knight-svg   { animation: knight-float 3s ease-in-out infinite; }
.knight-hit .knight-svg    { animation: knight-hit 0.6s ease-out forwards; }
.knight-win .knight-svg    { animation: knight-win 0.7s ease-out; }
.knight-dead .knight-svg   { animation: knight-dead 0.9s ease-out forwards; }
.knight-victory .knight-svg { animation: knight-victory 1.2s ease-in-out infinite; }

@keyframes knight-float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

@keyframes knight-hit {
  0%   { transform: translateX(0);    filter: drop-shadow(0 8px 20px rgba(67,97,238,0.4)); }
  20%  { transform: translateX(-12px); filter: drop-shadow(0 0 20px rgba(239,35,60,0.9)); }
  40%  { transform: translateX(10px); }
  60%  { transform: translateX(-6px); }
  80%  { transform: translateX(4px); }
  100% { transform: translateX(0);    filter: drop-shadow(0 8px 20px rgba(67,97,238,0.4)); }
}

@keyframes knight-win {
  0%   { transform: translateY(0) scale(1); }
  30%  { transform: translateY(-22px) scale(1.12); filter: drop-shadow(0 0 24px var(--color-gold)); }
  60%  { transform: translateY(-12px) scale(1.06); }
  100% { transform: translateY(0) scale(1); filter: drop-shadow(0 8px 20px rgba(67,97,238,0.4)); }
}

@keyframes knight-dead {
  0%   { transform: rotate(0deg) translateY(0); opacity: 1; }
  40%  { transform: rotate(35deg) translateY(12px); opacity: 0.9; }
  100% { transform: rotate(90deg) translateY(40px) translateX(30px); opacity: 0.25; }
}

@keyframes knight-victory {
  0%, 100% { transform: translateY(0) scale(1) rotate(0deg); }
  25%       { transform: translateY(-18px) scale(1.08) rotate(-5deg); filter: drop-shadow(0 0 20px var(--color-gold)); }
  75%       { transform: translateY(-14px) scale(1.05) rotate(5deg); }
}

.knight-message {
  position: absolute;
  top: -30px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 6px 12px;
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.knight-message.visible {
  opacity: 1;
  animation: message-pop 2s ease forwards;
}

@keyframes message-pop {
  0%   { opacity: 0; transform: translateX(-50%) translateY(6px); }
  15%  { opacity: 1; transform: translateX(-50%) translateY(0); }
  75%  { opacity: 1; }
  100% { opacity: 0; }
}

.knight-stats-panel { margin-top: 8px; }

.knight-lives {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 14px;
}

.heart {
  font-size: 1.8rem;
  transition: all 0.3s ease;
  filter: drop-shadow(0 0 6px rgba(239,35,60,0.5));
}

.heart.lost {
  filter: grayscale(1) opacity(0.35);
  transform: scale(0.85);
}

.knight-strength {
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius-md);
  padding: 10px 14px;
}

.stat-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: block;
  margin-bottom: 6px;
}

.stat-value {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-gold);
}

.strength-bar-container {
  height: 6px;
  background: rgba(255,255,255,0.08);
  border-radius: 3px;
  margin-top: 6px;
  overflow: hidden;
}

.strength-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--color-gold), var(--color-warning));
  border-radius: 3px;
  width: 0%;
  transition: width 0.5s ease;
}

/* ================================================================
   ШАГ 2: HTML-СКЕЛЕТ (DRAG AND DROP)
   ================================================================ */

.step2-main-layout {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 24px;
  margin-bottom: 24px;
}

body[data-page="step2"] .step-main {
  padding-top: 18px;
  padding-bottom: 18px;
}

body[data-page="step2"] .step-intro {
  margin-bottom: 14px;
}

body[data-page="step2"] .step-title {
  font-size: 1.55rem;
  margin-bottom: 4px;
}

body[data-page="step2"] .step-subtitle {
  font-size: 0.92rem;
}

body[data-page="step2"] .step2-main-layout {
  grid-template-columns: 320px 1fr;
  gap: 16px;
  margin-bottom: 12px;
}

/* Панель с образцом кода */
.code-reference-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

body[data-page="step2"] .code-reference-panel,
body[data-page="step2"] .assembly-panel,
body[data-page="step2"] .tag-toolbox-panel {
  padding: 14px;
}

.code-reference {
  background: #0a0e1a;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  overflow-x: auto;
}

body[data-page="step2"] .code-reference {
  padding: 10px 14px;
}

.code-block {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.8;
  white-space: pre;
  color: var(--text-secondary);
}

body[data-page="step2"] .code-block {
  font-size: 0.78rem;
  line-height: 1.45;
}

body[data-page="step2"] .panel-title {
  font-size: 0.82rem;
  margin-bottom: 8px;
  padding-bottom: 6px;
}

/* Цвета тегов в образце */
.tag-html-color  { color: #e06c75; }
.tag-head-color  { color: #e5c07b; }
.tag-body-color  { color: #61afef; }
.tag-pair-color  { color: #98c379; }

.reference-legend {
  display: flex;
  gap: 12px;
  margin-top: 12px;
  flex-wrap: wrap;
}

body[data-page="step2"] .reference-legend {
  gap: 8px;
  margin-top: 8px;
}

.legend-item {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 5px;
}

/* Панель сборки */
.assembly-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

body[data-page="step2"] .attempts-info {
  margin-bottom: 8px;
  font-size: 0.8rem;
}

.attempts-info {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 14px;
}

.attempts-info span {
  font-weight: 700;
  color: var(--color-warning);
}

.assembly-slots {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

body[data-page="step2"] .assembly-slots {
  gap: 4px;
}

.assembly-slot {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  border: 2px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  transition: all var(--transition);
  background: rgba(255,255,255,0.02);
}

body[data-page="step2"] .assembly-slot {
  min-height: 35px;
  padding: 4px 9px;
  gap: 7px;
}

.assembly-slot:hover,
.assembly-slot.drag-over {
  border-color: var(--color-primary);
  background: rgba(67,97,238,0.08);
}

.assembly-slot.filled {
  border-style: solid;
  border-color: var(--border);
  background: rgba(255,255,255,0.04);
}

.assembly-slot.correct {
  border-color: var(--color-success);
  background: rgba(56,211,159,0.08);
}

.assembly-slot.wrong {
  border-color: var(--color-danger);
  background: rgba(239,35,60,0.08);
  animation: shake 0.4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

.slot-number {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  min-width: 20px;
  text-align: right;
}

.slot-indent {
  display: inline-block;
}

.slot-drop-zone {
  flex: 1;
  min-height: 30px;
  display: flex;
  align-items: center;
}

body[data-page="step2"] .slot-drop-zone {
  min-height: 24px;
}

.slot-placeholder {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  font-style: italic;
}

/* Размещённый тег в слоте */
.placed-tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: grab;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  user-select: none;
  transition: all var(--transition);
}

body[data-page="step2"] .placed-tag {
  font-size: 0.76rem;
  padding: 3px 8px;
}

.placed-tag:active { cursor: grabbing; }
.placed-tag:hover { filter: brightness(1.15); }

/* Тулбокс с тегами */
.tag-toolbox-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

body[data-page="step2"] .tag-toolbox-panel {
  margin-top: 12px !important;
}

.tag-toolbox {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

body[data-page="step2"] .tag-toolbox {
  gap: 7px;
}

.tag-chip {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  cursor: grab;
  user-select: none;
  transition: all var(--transition);
  border: 2px solid transparent;
}

body[data-page="step2"] .tag-chip {
  font-size: 0.76rem;
  padding: 6px 10px;
}

.tag-chip:active { cursor: grabbing; transform: scale(1.05); }
.tag-chip:hover  { transform: translateY(-2px); box-shadow: var(--shadow-sm); }

.tag-chip.dragging { opacity: 0.45; }

/* Цвета тегов */
.tag-html  { background: rgba(224,108,117,0.2); border-color: rgba(224,108,117,0.4); color: #e06c75; }
.tag-head  { background: rgba(229,192,123,0.2); border-color: rgba(229,192,123,0.4); color: #e5c07b; }
.tag-body  { background: rgba(97,175,239,0.2);  border-color: rgba(97,175,239,0.4);  color: #61afef; }
.tag-pair  { background: rgba(152,195,121,0.2); border-color: rgba(152,195,121,0.4); color: #98c379; }

/* ================================================================
   ШАГ 3: CSS PLAYGROUND
   ================================================================ */

.task-generation-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 28px;
  margin-bottom: 16px;
}

.task-generation-bar h2 {
  font-size: 1.4rem;
  margin-bottom: 4px;
}

.task-generation-bar p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.task-requirements {
  background: rgba(67,97,238,0.08);
  border: 1px solid rgba(67,97,238,0.3);
  border-radius: var(--radius-lg);
  padding: 20px 28px;
  margin-bottom: 20px;
}

.task-requirements h3 {
  color: var(--color-primary-l);
  margin-bottom: 14px;
  font-size: 1.1rem;
}

.task-items {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}

.task-item {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 8px 14px;
  font-size: 0.875rem;
}

.task-item-label { color: var(--text-muted); }
.task-item-value { font-weight: 700; color: var(--text-primary); }
.task-item-swatch {
  width: 16px; height: 16px;
  border-radius: 4px;
  border: 1px solid var(--border);
  flex-shrink: 0;
}

.step3-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 24px;
}

/* Preview panel */
.preview-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
}

.preview-frame {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  height: 560px;
  overflow-y: auto;
}

/* Это содержимое превью-страницы — стили контролируются из JS через CSS-переменные */
#preview-page {
  --p-bg:           #ffffff;
  --p-text:         #222222;
  --p-h-font:       Arial;
  --p-b-font:       Arial;
  --p-h-scale:      100;
  --p-b-scale:      100;
  --p-radius:       0px;
  --p-padding:      15px;
  --p-margin:       10px;
  --p-align:        left;

  background: var(--p-bg);
  color: var(--p-text);
  text-align: var(--p-align);
  padding: 24px;
  min-height: 100%;
  transition: all 0.3s ease;
}

#preview-page h1 {
  font-family: var(--p-h-font), serif;
  font-size: calc(1.8rem * var(--p-h-scale) / 100);
  margin-bottom: calc(var(--p-margin));
  line-height: 1.2;
}

#preview-page h2 {
  font-family: var(--p-h-font), serif;
  font-size: calc(1.3rem * var(--p-h-scale) / 100);
  margin-top: calc(var(--p-margin) * 1.5);
  margin-bottom: var(--p-margin);
}

#preview-page p {
  font-family: var(--p-b-font), sans-serif;
  font-size: calc(0.95rem * var(--p-b-scale) / 100);
  line-height: 1.6;
  margin-bottom: var(--p-margin);
}

#preview-page ul {
  font-family: var(--p-b-font), sans-serif;
  padding-left: 20px;
  margin-bottom: var(--p-margin);
  list-style: disc;
  font-size: calc(0.95rem * var(--p-b-scale) / 100);
}

#preview-page li {
  padding: calc(var(--p-padding) * 0.3) 0;
  line-height: 1.5;
}

/* Вид списка в задании шага 3 */
#preview-page[data-list-style="numbered"] ul {
  list-style: decimal;
  list-style-position: outside;
  padding-left: 1.5rem;
}

#preview-page[data-list-style="blocks"] ul {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 12px;
  list-style: none;
  padding-left: 0;
}

#preview-page[data-list-style="blocks"] ul li {
  flex: 1 1 32%;
  min-width: 100px;
  max-width: 100%;
  aspect-ratio: 1;
  box-sizing: border-box;
  margin: 0;
  padding: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  line-height: 1.35;
  border-radius: var(--p-radius);
  background: rgba(0, 0, 0, 0.07);
  border: 2px solid rgba(0, 0, 0, 0.12);
  font-size: calc(0.82rem * var(--p-b-scale) / 100);
}

#preview-page .preview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: calc(var(--p-margin) * 1.5);
}

#preview-page .preview-card {
  background: rgba(0,0,0,0.06);
  padding: var(--p-padding);
  border-radius: var(--p-radius);
  transition: all 0.3s ease;
}

#preview-page .preview-card h3 {
  font-family: var(--p-h-font), serif;
  font-size: calc(1rem * var(--p-h-scale) / 100);
  margin-bottom: 6px;
}

#preview-page .preview-card p {
  font-size: calc(0.8rem * var(--p-b-scale) / 100);
  margin: 0;
  line-height: 1.5;
}

/* Controls panel */
.controls-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  overflow-y: auto;
  max-height: 620px;
}

.control-group {
  margin-bottom: 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}

.control-group:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.control-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 10px;
}

.color-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.color-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--bg-card-hover);
  border: 2px solid var(--border);
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--transition);
}

.color-btn:hover { border-color: var(--color-primary); }
.color-btn.active { border-color: var(--color-primary); background: rgba(67,97,238,0.2); }

.color-btn-swatch {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  border: 1px solid rgba(255,255,255,0.15);
  flex-shrink: 0;
}

.control-select {
  width: 100%;
  padding: 9px 12px;
  background: var(--bg-card-hover);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
}

.control-select:focus {
  outline: none;
  border-color: var(--color-primary);
}

.control-select option,
.control-select optgroup {
  background: #161b2e;
  color: #e8eaf0;
}

@media (forced-colors: active) {
  .control-select option {
    background: Canvas;
    color: CanvasText;
  }
}

.control-range {
  width: 100%;
  -webkit-appearance: none;
  height: 6px;
  background: rgba(255,255,255,0.1);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}

.control-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: var(--glow-blue);
  cursor: pointer;
  transition: all var(--transition);
}

.control-range::-webkit-slider-thumb:hover { transform: scale(1.2); }

.align-buttons {
  display: flex;
  gap: 8px;
}

.align-btn {
  flex: 1;
  text-align: center;
  padding: 7px 8px;
  font-size: 0.78rem;
  background: var(--bg-card-hover);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.align-btn.active {
  border-color: var(--color-primary);
  background: rgba(67,97,238,0.2);
  color: var(--text-primary);
}

/* ================================================================
   ШАГ 4: КОД-РЕДАКТОР + КЛИКЕР
   ================================================================ */

.step4-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.editor-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.editor-spec-box {
  background: rgba(67,97,238,0.08);
  border: 1px solid rgba(67,97,238,0.3);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
}

.editor-spec-box h3 {
  color: var(--color-primary-l);
  margin-bottom: 12px;
}

.spec-table { width: 100%; border-collapse: collapse; }
.spec-table td {
  padding: 6px 10px;
  font-size: 0.875rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

.spec-table td:first-child { width: 65%; }

.spec-table td strong {
  color: var(--color-gold);
  font-size: 1rem;
}

.spec-table tr:last-child td { border-bottom: none; }

.editor-spec-box p {
  margin-top: 10px;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.editor-spec-box code {
  background: rgba(255,255,255,0.1);
  padding: 1px 5px;
  border-radius: 3px;
  font-family: var(--font-mono);
  color: var(--color-warning);
  font-size: 0.85rem;
}

.code-editor-wrapper {
  background: #0d1117;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  flex: 1;
}

.editor-titlebar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  background: #161b22;
  border-bottom: 1px solid var(--border);
}

.editor-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
}

.editor-filename {
  margin-left: 8px;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.code-editor {
  display: block;
  width: 100%;
  min-height: 200px;
  padding: 14px 16px;
  background: transparent;
  border: none;
  color: #a9b1d6;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.75;
  resize: vertical;
  outline: none;
  caret-color: #fff;
}

.editor-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.code-result {
  font-size: 0.9rem;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  display: none;
}

.code-result.success {
  display: block;
  background: rgba(56,211,159,0.15);
  border: 1px solid rgba(56,211,159,0.4);
  color: var(--color-success);
}

.code-result.error {
  display: block;
  background: rgba(239,35,60,0.12);
  border: 1px solid rgba(239,35,60,0.3);
  color: var(--color-danger);
}

/* Игровая панель */
.game-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 520px;
}

.game-locked {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 40px;
}

.lock-icon {
  font-size: 3.5rem;
  filter: grayscale(0.5);
}

.game-locked p {
  color: var(--text-secondary);
  text-align: center;
  font-size: 1rem;
}

.game-area {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.game-topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: rgba(0,0,0,0.3);
  border-bottom: 1px solid var(--border);
}

.game-topbar-left,
.game-topbar-mid,
.game-topbar-right {
  flex: 1;
  min-width: 0;
}

.game-topbar-left {
  display: flex;
  justify-content: flex-start;
}

.game-topbar-mid {
  display: flex;
  justify-content: center;
  text-align: center;
}

.game-topbar-right {
  display: flex;
  justify-content: flex-end;
}

.game-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--color-info);
  letter-spacing: 0.02em;
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 100%;
  padding: 0 6px;
}

.game-money {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-gold);
  display: flex;
  align-items: center;
  gap: 8px;
}

.game-auto {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 600;
  text-align: right;
}

.game-field {
  position: relative;
  flex: 1;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 20px;
  background:
    radial-gradient(circle at 50% 50%, rgba(67,97,238,0.06) 0%, transparent 60%);
}

.game-click-btn {
  position: relative;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), #6a11cb);
  border: 3px solid rgba(255,255,255,0.2);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  text-align: center;
  cursor: pointer;
  transition: all 0.1s ease;
  box-shadow: 0 8px 32px rgba(67,97,238,0.5), 0 0 0 0 rgba(67,97,238,0);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  user-select: none;
  z-index: 1;
}

.game-click-btn .btn-icon { font-size: 2rem; }
.game-click-btn:hover { transform: scale(1.05); box-shadow: 0 12px 40px rgba(67,97,238,0.7); }
.game-click-btn:active {
  transform: scale(0.94);
  box-shadow: 0 4px 16px rgba(67,97,238,0.4);
}

.click-ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  animation: ripple 0.6s ease-out forwards;
  pointer-events: none;
}

@keyframes ripple {
  0%   { width: 0; height: 0; opacity: 1; transform: translate(-50%,-50%); }
  100% { width: 120px; height: 120px; opacity: 0; transform: translate(-50%,-50%); }
}

.click-popup {
  position: absolute;
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--color-gold);
  pointer-events: none;
  animation: click-popup-anim 0.8s ease forwards;
  z-index: 10;
  text-shadow: 0 2px 4px rgba(0,0,0,0.6);
}

@keyframes click-popup-anim {
  0%   { transform: translateY(0)    scale(0.8); opacity: 1; }
  50%  { transform: translateY(-28px) scale(1.1); opacity: 1; }
  100% { transform: translateY(-56px) scale(0.9); opacity: 0; }
}

/* Баг (жук) */
.game-bug {
  position: absolute;
  font-size: 1.8rem;
  cursor: pointer;
  animation: bug-appear 0.3s ease, bug-wiggle 0.4s ease infinite alternate;
  z-index: 5;
  user-select: none;
  filter: drop-shadow(0 0 6px rgba(56,211,159,0.6));
  transition: transform 0.1s;
}

.game-bug:hover { transform: scale(1.3); }
.game-bug:active { transform: scale(0.9); }

@keyframes bug-appear {
  from { transform: scale(0) rotate(-30deg); opacity: 0; }
  to   { transform: scale(1) rotate(0deg); opacity: 1; }
}

@keyframes bug-wiggle {
  from { transform: rotate(-8deg); }
  to   { transform: rotate(8deg); }
}

/* Персонаж + апгрейды */
.game-upgrades-row {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  gap: 14px;
  background: rgba(0,0,0,0.25);
  border-top: 1px solid var(--border);
  padding: 14px 14px 16px;
}

.game-dev-card {
  flex: 0 0 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  padding: 10px 8px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.game-dev-card .game-dev-svg {
  width: 72px;
  height: 96px;
  flex-shrink: 0;
}

.game-dev-level {
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--color-gold);
  text-align: center;
  line-height: 1.3;
}

.game-dev-xp-bar {
  width: 100%;
  height: 5px;
  border-radius: 3px;
  background: rgba(255,255,255,0.08);
  overflow: hidden;
}

.game-dev-xp-fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-info));
  width: 0%;
  transition: width 0.35s ease;
}

.game-dev-xp-label {
  font-size: 0.62rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.3;
}

.game-upgrades {
  flex: 1;
  min-width: 0;
  padding: 0;
  overflow-y: auto;
  max-height: 320px;
}

.game-upgrades h4 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.step4-next-stage {
  padding: 10px 14px 0;
  border-bottom: 1px solid var(--border);
  background: rgba(67,97,238,0.06);
}

.step4-next-stage .btn {
  width: 100%;
  justify-content: center;
}

.upgrades-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.upgrade-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  background: var(--bg-card-hover);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  text-align: left;
  width: 100%;
}

.upgrade-btn:hover:not(:disabled) {
  border-color: var(--color-primary);
  background: rgba(67,97,238,0.12);
}

.upgrade-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.upgrade-btn.bought {
  border-color: var(--color-success);
  background: rgba(56,211,159,0.06);
  opacity: 0.7;
}

.upgrade-icon { font-size: 1.1rem; flex-shrink: 0; }
.upgrade-info { flex: 1; }
.upgrade-name { font-size: 0.8rem; font-weight: 600; color: var(--text-primary); }
.upgrade-desc { font-size: 0.72rem; color: var(--text-muted); }
.upgrade-cost { font-size: 0.8rem; font-weight: 700; color: var(--color-gold); white-space: nowrap; }

/* ================================================================
   ШАГ 5: КОНСТРУКТОР
   ================================================================ */

.step5-layout {
  display: grid;
  grid-template-columns: 210px minmax(240px, 0.72fr) minmax(400px, 1.28fr);
  gap: 20px;
  align-items: start;
  min-height: 600px;
}

.constructor-toolbox {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  overflow-y: auto;
  max-height: calc(100vh - var(--header-h) - 110px);
  position: sticky;
  top: calc(var(--header-h) + 16px);
}

.constructor-toolbox h3 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.toolbox-items {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toolbox-block {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--bg-card-hover);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: grab;
  transition: all var(--transition);
  user-select: none;
}

.toolbox-block:hover {
  border-color: var(--color-primary);
  background: rgba(67,97,238,0.12);
  transform: translateX(3px);
}

.toolbox-block:active { cursor: grabbing; }
.toolbox-block.dragging { opacity: 0.4; }
.toolbox-block.disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
}

.toolbox-icon { font-size: 1rem; flex-shrink: 0; }
.toolbox-label { font-size: 0.82rem; font-weight: 600; color: var(--text-secondary); }

/* Canvas */
.constructor-canvas-wrapper {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
}

.constructor-canvas-wrapper > h3 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.constructor-canvas-wrapper > h3 small {
  font-weight: 400;
  color: var(--text-muted);
  text-transform: none;
}

.constructor-canvas {
  flex: 0 0 auto;
  background: var(--bg-card);
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 16px;
  overflow-y: auto;
  transition: all var(--transition);
  min-height: 520px;
}

.constructor-canvas.drag-over {
  border-color: var(--color-primary);
  background: rgba(67,97,238,0.06);
}

.canvas-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  min-height: 200px;
  color: var(--text-muted);
  font-size: 0.95rem;
  text-align: center;
  pointer-events: none;
}

.canvas-block {
  background: var(--bg-card-hover);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  margin-bottom: 10px;
  position: relative;
  transition: all var(--transition);
  animation: block-appear 0.3s ease;
}

@keyframes block-appear {
  from { opacity: 0; transform: translateY(-10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.canvas-block:hover { border-color: var(--border-active); }

.canvas-block-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.block-type-badge {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px 7px;
  border-radius: 100px;
  background: rgba(67,97,238,0.2);
  color: var(--color-primary-l);
  flex-shrink: 0;
}

.canvas-block-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.block-ctrl-btn {
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.8rem;
  transition: all var(--transition);
  padding: 0;
}

.block-ctrl-btn:hover { background: var(--bg-card-hover); color: var(--text-primary); }
.block-ctrl-btn.delete:hover { background: rgba(239,35,60,0.2); border-color: var(--color-danger); color: var(--color-danger); }

.block-input {
  width: 100%;
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 7px 10px;
  color: var(--text-primary);
  font-size: 0.9rem;
  line-height: 1.5;
  resize: vertical;
  min-height: 36px;
}

.block-input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.block-list-items {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.block-list-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.block-list-item input {
  flex: 1;
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 5px 8px;
  color: var(--text-primary);
  font-size: 0.85rem;
}

.block-list-item input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.add-list-item-btn {
  font-size: 0.78rem;
  color: var(--color-primary-l);
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.add-list-item-btn:hover { color: var(--text-primary); }

/* Preview panel (step5) */
.constructor-preview-wrapper {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
}

.constructor-preview-wrapper > h3 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.constructor-preview {
  flex: 0 0 auto;
  background: #f1f5f9;
  border-radius: var(--radius-lg);
  padding: 20px;
  overflow-y: auto;
  color: #222;
  font-family: Arial, sans-serif;
  border: 1px solid #e2e8f0;
  min-height: 520px;
}

.constructor-preview .preview-segment {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 14px 18px;
  margin-bottom: 12px;
  box-shadow: 0 2px 8px rgba(15,23,42,0.06);
}

.constructor-preview .preview-segment:last-child {
  margin-bottom: 0;
}

.constructor-preview .preview-segment--hr {
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
  border-radius: 0;
}

.constructor-preview h1 { font-size: 1.8rem; color: #1a1a1a; margin: 0 0 8px; line-height: 1.2; }
.constructor-preview h2 { font-size: 1.4rem; color: #2a2a2a; margin: 0 0 8px; }
.constructor-preview p  { font-size: 0.95rem; line-height: 1.65; margin: 0 0 8px; color: #333; }
.constructor-preview p:last-child { margin-bottom: 0; }
.constructor-preview .p-large { font-size: 1.1rem; line-height: 1.65; margin: 0 0 8px; color: #222; }
.constructor-preview ul { padding-left: 20px; margin: 0; }
.constructor-preview li { font-size: 0.9rem; line-height: 1.7; color: #333; list-style: disc; }
.constructor-preview hr { border: none; border-top: 2px solid #cbd5e1; margin: 0; }
.constructor-preview .highlight-block {
  background: #eef2ff;
  border: 1px solid #c7d2fe;
  padding: 12px 16px;
  border-radius: 12px;
  margin: 0;
  font-size: 0.9rem;
  color: #2a2a5a;
  line-height: 1.6;
}

.constructor-preview-empty {
  color: #aaa;
  font-style: italic;
  font-size: 0.9rem;
  padding: 20px 0;
}

.block-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-style: italic;
  margin: 0;
}

.block-style-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

.style-control {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.style-control input[type="color"] {
  width: 100%;
  height: 32px;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(0,0,0,0.2);
}

.style-control input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.style-control input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: 999px;
  background: rgba(255,255,255,0.16);
}

.style-control input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  margin-top: -6px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid #fff;
  box-shadow: var(--glow-blue);
}

.style-control input[type="range"]::-moz-range-track {
  height: 6px;
  border-radius: 999px;
  background: rgba(255,255,255,0.16);
}

.style-control input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid #fff;
  box-shadow: var(--glow-blue);
}

.style-control select {
  width: 100%;
  min-height: 32px;
  padding: 5px 8px;
  background: rgba(0,0,0,0.2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
}

.style-control select option {
  background: #161b2e;
  color: #e8eaf0;
}

.preview-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.preview-head > h3 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.page-pattern-control,
.page-pattern-control label {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-pattern-control {
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 10px 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.page-pattern-control span {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.page-pattern-control b {
  min-width: 34px;
  color: var(--text-primary);
  font-size: 0.82rem;
}

.page-pattern-control select {
  min-width: 180px;
  padding: 7px 10px;
  background: #161b2e;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: #ffffff;
}

.page-pattern-control select option {
  background: #ffffff;
  color: #111827;
}

.page-pattern-control input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 150px;
  height: 6px;
  border-radius: 999px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.page-pattern-control input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: 999px;
  background: rgba(255,255,255,0.16);
}

.page-pattern-control input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  margin-top: -6px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid #fff;
  box-shadow: var(--glow-blue);
}

.page-pattern-control input[type="range"]::-moz-range-track {
  height: 6px;
  border-radius: 999px;
  background: rgba(255,255,255,0.16);
}

.page-pattern-control input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 2px solid #fff;
  box-shadow: var(--glow-blue);
}

.constructor-preview .preview-segment[style] h1,
.constructor-preview .preview-segment[style] h2,
.constructor-preview .preview-segment[style] p,
.constructor-preview .preview-segment[style] li,
.constructor-preview .preview-segment[style] .highlight-block {
  color: inherit;
  font-family: inherit;
  font-weight: inherit;
}

.constructor-preview .preview-segment[style] h1,
.constructor-preview .preview-segment[style] h2,
.constructor-preview .preview-segment[style] p {
  font-size: inherit;
}

.constructor-preview .greeting-preview[style] h1 {
  font-size: 2rem;
}

.constructor-preview .greeting-preview[style] p {
  font-size: 1rem;
}

.constructor-preview .preview-segment--image {
  text-align: center;
}

.constructor-preview.pattern-light {
  background: #f1f5f9;
}

.constructor-preview.pattern-dark {
  background: #0f172a;
}

.constructor-preview.pattern-diagonal {
  background-color: #f1f5f9;
  background-image: repeating-linear-gradient(135deg, rgba(76,201,240,0.16) 0 8px, transparent 8px 20px);
}

.constructor-preview.pattern-notebook {
  background-color: #fffdf7;
  background-image:
    linear-gradient(90deg, rgba(239,35,60,0.16) 0 2px, transparent 2px),
    repeating-linear-gradient(0deg, transparent 0 27px, rgba(67,97,238,0.16) 27px 29px);
  background-size: 100% 100%, 100% 29px;
  background-position: 34px 0, 0 0;
}

.constructor-preview.pattern-confetti {
  background-color: #fefce8;
  background-image:
    radial-gradient(circle at 6px 6px, rgba(247,37,133,0.25) 0 2px, transparent 2px),
    radial-gradient(circle at 18px 14px, rgba(67,97,238,0.25) 0 2px, transparent 2px),
    radial-gradient(circle at 28px 24px, rgba(56,211,159,0.28) 0 2px, transparent 2px);
  background-size: 34px 34px;
}

.constructor-preview.pattern-space {
  background-color: #10152e;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='96' height='96' viewBox='0 0 96 96'%3E%3Crect width='96' height='96' fill='%2310152e'/%3E%3Ctext x='9' y='30' font-size='20'%3E%E2%AD%90%3C/text%3E%3Ctext x='58' y='25' font-size='18'%3E%F0%9F%AA%90%3C/text%3E%3Ctext x='28' y='74' font-size='20'%3E%F0%9F%9A%80%3C/text%3E%3Ccircle cx='82' cy='72' r='2' fill='%23fff'/%3E%3Ccircle cx='45' cy='42' r='1.5' fill='%23fff'/%3E%3C/svg%3E");
  background-size: 96px 96px;
}

.constructor-preview.pattern-candy {
  background-color: #fff1f2;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='92' height='92' viewBox='0 0 92 92'%3E%3Crect width='92' height='92' fill='%23fff1f2'/%3E%3Ctext x='8' y='32' font-size='20'%3E%F0%9F%8D%AC%3C/text%3E%3Ctext x='54' y='28' font-size='20'%3E%F0%9F%8D%AD%3C/text%3E%3Ctext x='28' y='76' font-size='20'%3E%F0%9F%8D%A9%3C/text%3E%3Ccircle cx='78' cy='66' r='4' fill='%23f9a8d4'/%3E%3C/svg%3E");
  background-size: 92px 92px;
}

.constructor-preview.pattern-unicorns {
  background-color: #f5f3ff;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='104' height='104' viewBox='0 0 104 104'%3E%3Crect width='104' height='104' fill='%23f5f3ff'/%3E%3Ctext x='10' y='34' font-size='24'%3E%F0%9F%A6%84%3C/text%3E%3Ctext x='60' y='30' font-size='20'%3E%E2%9C%A8%3C/text%3E%3Ctext x='32' y='82' font-size='22'%3E%F0%9F%8C%88%3C/text%3E%3Ccircle cx='84' cy='76' r='4' fill='%23c4b5fd'/%3E%3C/svg%3E");
  background-size: 104px 104px;
}

.greeting-editor {
  display: grid;
  gap: 10px;
}

.avatar-choice-grid {
  display: grid;
  grid-template-columns: repeat(5, 42px);
  gap: 8px;
}

.avatar-choice {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-size: cover;
  background-position: center;
  border: 2px solid var(--border);
}

.avatar-choice.active {
  border-color: var(--color-primary);
  box-shadow: var(--glow-blue);
}

.greeting-preview {
  display: flex;
  align-items: center;
  gap: 18px;
}

.greeting-avatar {
  width: 92px;
  height: 92px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid rgba(255,255,255,0.8);
  box-shadow: 0 10px 24px rgba(15,23,42,0.18);
  flex-shrink: 0;
}

.constructor-preview .greeting-preview h1 {
  margin: 0 0 6px;
}

.constructor-preview .greeting-preview p {
  opacity: 0.78;
}

.publish-result {
  display: grid;
  gap: 10px;
  padding: 14px;
  background: rgba(56,211,159,0.10);
  border: 1px solid rgba(56,211,159,0.35);
  border-radius: var(--radius-md);
  color: var(--text-primary);
}

.publish-result[hidden] {
  display: none !important;
}

.publish-result h3 {
  color: var(--color-success);
  font-size: 1rem;
}

.publish-result p {
  color: var(--text-secondary);
  margin: 0;
}

.publish-result a {
  color: var(--color-info);
  overflow-wrap: anywhere;
  font-weight: 700;
}

.publish-result img {
  width: 180px;
  height: 180px;
  padding: 8px;
  background: #fff;
  border-radius: var(--radius-sm);
}

@media (max-width: 1100px) {
  .step5-layout {
    grid-template-columns: 190px minmax(280px, 1fr);
    min-height: 0;
  }

  .constructor-preview-wrapper {
    grid-column: 1 / -1;
    min-height: 520px;
  }

  .constructor-canvas {
    min-height: 420px;
  }

  .constructor-preview {
    min-height: 420px;
  }
}

@media (max-width: 760px) {
  .step5-layout {
    grid-template-columns: 1fr;
  }

  .constructor-toolbox,
  .constructor-canvas-wrapper,
  .constructor-preview-wrapper {
    min-width: 0;
  }

  .toolbox-items {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .block-style-grid {
    grid-template-columns: 1fr;
  }
}

/* ================================================================
   АНИМАЦИИ ОБЩИЕ
   ================================================================ */

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 8px rgba(67,97,238,0.3); }
  50%       { box-shadow: 0 0 24px rgba(67,97,238,0.7); }
}

.pulse { animation: pulse-glow 2s ease infinite; }

@keyframes bounce-in {
  0%   { transform: scale(0.6); opacity: 0; }
  60%  { transform: scale(1.1); opacity: 1; }
  100% { transform: scale(1); }
}

.bounce-in { animation: bounce-in 0.4s cubic-bezier(0.34,1.56,0.64,1) forwards; }

/* Уведомление */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--shadow-md);
  z-index: 2000;
  transition: transform 0.35s cubic-bezier(0.34,1.2,0.64,1);
  pointer-events: none;
}

.toast.show { transform: translateX(-50%) translateY(0); }
.toast.success { border-color: var(--color-success); color: var(--color-success); }
.toast.error   { border-color: var(--color-danger);  color: var(--color-danger); }

/* Финальный экран */
.finish-screen {
  min-height: calc(100vh - var(--header-h) - 56px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.finish-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 60px 80px;
  text-align: center;
  max-width: 600px;
  width: 100%;
  animation: modal-appear 0.5s cubic-bezier(0.34,1.56,0.64,1);
}

.finish-icon { font-size: 5rem; margin-bottom: 24px; }
.finish-title { font-size: 2.4rem; font-weight: 900; margin-bottom: 16px; }
.finish-text  { color: var(--text-secondary); font-size: 1.05rem; line-height: 1.7; margin-bottom: 32px; }