/* Стили для главной страницы, auth и личного кабинета */

.page-body {
  height: auto;
  min-height: 100vh;
  overflow: auto;
  display: flex;
  flex-direction: column;
}

.page-body .header {
  flex-shrink: 0;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.site-nav__link {
  color: var(--text-muted);
  text-decoration: none;
  padding: 8px 12px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  transition: color 0.15s, background 0.15s;
}

.site-nav__link:hover,
.site-nav__link.is-active {
  color: var(--text);
  background: var(--surface-2);
}

.site-nav__link--muted {
  opacity: 0.8;
}

.site-nav__user {
  color: var(--text-muted);
  font-size: 0.85rem;
  padding: 0 8px;
}

.btn--nav {
  padding: 8px 14px;
  font-size: 0.85rem;
}

.btn--large {
  padding: 12px 24px;
  font-size: 1rem;
}

.btn--full {
  width: 100%;
}

.page-main {
  flex: 1;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px 48px;
}

.site-footer {
  text-align: center;
  padding: 20px 24px 28px;
  color: var(--text-muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

.site-footer__inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.site-footer__tagline {
  margin: 0;
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

.site-footer__links a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.15s;
}

.site-footer__links a:hover {
  color: var(--accent);
}

.privacy-page {
  max-width: 680px;
}

.privacy-page h1 {
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.privacy-page h2 {
  font-size: 1.1rem;
  margin: 28px 0 12px;
}

.privacy-page__lead {
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 8px;
}

.privacy-page ul {
  padding-left: 1.25rem;
  color: var(--text-muted);
  line-height: 1.7;
}

.privacy-page a {
  color: var(--accent);
}

.privacy-page__back {
  margin-top: 36px;
}

.privacy-page__back a {
  text-decoration: none;
}

.privacy-page__back a:hover {
  text-decoration: underline;
}

.flash-list {
  max-width: 1100px;
  margin: 16px auto 0;
  padding: 0 24px;
}

.flash {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 8px;
  font-size: 0.9rem;
}

.flash--success {
  background: rgba(34, 197, 94, 0.15);
  border: 1px solid rgba(34, 197, 94, 0.4);
  color: #86efac;
}

.flash--error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
}

.flash--info {
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.4);
  color: #93c5fd;
}

/* Hero */

.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
  margin-bottom: 64px;
}

.hero__badge {
  display: inline-block;
  padding: 6px 12px;
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 999px;
  color: #93c5fd;
  font-size: 0.85rem;
  margin-bottom: 16px;
}

.hero__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.2;
  margin-bottom: 16px;
}

.hero__text {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.6;
  margin-bottom: 28px;
}

.hero__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero__visual {
  display: flex;
  justify-content: center;
}

.hero__code-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  width: 100%;
  max-width: 360px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.hero__code-header {
  padding: 10px 14px;
  background: var(--surface-2);
  font-size: 0.8rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
}

.hero__code {
  padding: 16px;
  font-family: var(--mono);
  font-size: 0.9rem;
  line-height: 1.5;
  color: #a5f3fc;
}

/* Features */

.section-title {
  font-size: 1.5rem;
  margin-bottom: 24px;
}

.features {
  margin-bottom: 64px;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}

.feature-card__icon {
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.feature-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

/* Topics preview — карточки тем */

.topics-preview {
  margin-bottom: 64px;
}

.topics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.topic-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.topic-card:hover {
  transform: translateY(-3px);
  border-color: rgba(59, 130, 246, 0.35);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.22);
}

.topic-card--highlight {
  border-color: rgba(245, 158, 11, 0.45);
  background: linear-gradient(160deg, rgba(245, 158, 11, 0.08) 0%, var(--surface) 55%);
}

.topic-card--highlight:hover {
  border-color: rgba(245, 158, 11, 0.65);
}

.topic-card__icon {
  font-size: 1.75rem;
  display: block;
  margin-bottom: 10px;
}

.topic-card__title {
  font-size: 1rem;
  margin-bottom: 6px;
}

.topic-card__meta {
  font-size: 0.82rem;
  color: var(--warning);
  margin-bottom: 8px;
  font-weight: 600;
}

.topic-card__desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.topics-preview__cta {
  text-align: center;
}

/* CTA */

.cta-block {
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px 32px;
}

.cta-block h2 {
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.cta-block p {
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* Auth */

.auth-section {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 50vh;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
}

.auth-card__title {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.auth-card__subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 28px;
}

.auth-card__footer {
  margin-top: 24px;
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.auth-card__footer a {
  color: var(--accent);
  text-decoration: none;
}

.auth-card__footer a:hover {
  text-decoration: underline;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group--checkbox {
  flex-direction: row;
  align-items: center;
  gap: 8px;
}

.form-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-input {
  width: 100%;
  box-sizing: border-box;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
}

.form-input-wrap {
  position: relative;
  display: block;
}

.form-input-wrap .form-input {
  width: 100%;
  padding-right: 46px;
}

.form-input-toggle {
  position: absolute;
  top: 50%;
  right: 6px;
  transform: translateY(-50%);
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.15s, background 0.15s;
}

.form-input-toggle:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.form-input-toggle:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

.form-input-toggle__icon--hide {
  display: none;
}

.form-input-toggle.is-visible .form-input-toggle__icon--show {
  display: none;
}

.form-input-toggle.is-visible .form-input-toggle__icon--hide {
  display: block;
}

.form-group--error .form-input-toggle {
  color: #fca5a5;
}

.form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.form-group--error .form-input {
  border-color: var(--error);
}

.form-error {
  color: var(--error);
  font-size: 0.8rem;
}

.form-hint {
  color: var(--text-muted);
  font-size: 0.78rem;
}

.form-checkbox {
  width: 16px;
  height: 16px;
}

.form-checkbox-label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Profile */

.profile-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.profile-header__title {
  font-size: 1.75rem;
  margin-bottom: 8px;
}

.profile-header__subtitle {
  color: var(--text-muted);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  text-align: center;
}

.stat-card__value {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.stat-card__label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.topic-progress {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 16px;
}

.topic-progress__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.topic-progress__title {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.topic-progress__meta {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.progress-bar {
  width: 120px;
  height: 8px;
  background: var(--surface-2);
  border-radius: 999px;
  overflow: hidden;
  flex-shrink: 0;
}

.progress-bar__fill {
  height: 100%;
  background: var(--success);
  border-radius: 999px;
  transition: width 0.3s;
}

.task-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.task-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  background: var(--surface-2);
  border-radius: var(--radius);
  border: 1px solid transparent;
}

.task-row--done {
  border-color: rgba(34, 197, 94, 0.25);
}

.task-row__info {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex: 1;
}

.task-row__status {
  flex-shrink: 0;
  color: var(--success);
}

.task-row__title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.task-row__attempts {
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.empty-state {
  text-align: center;
  padding: 48px 24px;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: 12px;
}

.empty-state p {
  color: var(--text-muted);
  margin-bottom: 20px;
}

/* Solution page */

.breadcrumb {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.breadcrumb a {
  color: var(--accent);
  text-decoration: none;
}

.breadcrumb a:hover {
  text-decoration: underline;
}

.breadcrumb--compact {
  margin-bottom: 16px;
}

.solution-header {
  margin-bottom: 28px;
}

.solution-header h1 {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.solution-header__meta {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.solution-block {
  margin-bottom: 28px;
}

.solution-block__title {
  font-size: 1rem;
  margin-bottom: 12px;
  color: var(--text-muted);
}

.solution-code {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin: 0;
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.5;
  overflow-x: auto;
  white-space: pre;
  word-break: normal;
  tab-size: 4;
}

.solution-code code {
  display: block;
  margin: 0;
  padding: 0;
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  white-space: inherit;
}

.solution-code--small {
  font-size: 0.8rem;
  margin-top: 8px;
}

.solution-blocks-preview {
  min-height: 120px;
  width: 100%;
  border-radius: 10px;
  background: #111827;
  border: 1px solid var(--border);
  overflow: hidden;
}

.solution-blocks-preview.guide-preview {
  padding-top: 0;
}

.solution-blocks-preview .guide-preview__host .blocklySvg {
  background: #111827 !important;
}

.solution-blocks-preview .py-frame-start > .blocklyBlockBackground,
.solution-blocks-preview .py-frame-start > .blocklyPath.blocklyBlockBackground,
.solution-blocks-preview .py-frame-end > .blocklyBlockBackground,
.solution-blocks-preview .py-frame-end > .blocklyPath.blocklyBlockBackground {
  stroke-width: 2px !important;
}

.solution-blocks-preview .blocklyScrollbarHorizontal,
.solution-blocks-preview .blocklyScrollbarVertical {
  display: none !important;
}

.attempts-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.attempt-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
}

.attempt-item--success {
  border-color: rgba(34, 197, 94, 0.3);
}

.attempt-item summary {
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.9rem;
}

.attempt-item__status {
  font-weight: 600;
}

.attempt-item--success .attempt-item__status {
  color: var(--success);
}

.attempt-item__date {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.solution-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 32px;
}

.text-muted {
  color: var(--text-muted);
}

/* Workspace header — навигация как на главной (site-nav в header__nav-panel) */

.editor-mode-label {
  padding: 8px 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.9rem;
  color: var(--text-muted);
  white-space: nowrap;
}

@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero__visual {
    order: -1;
  }
}