:root {
  color-scheme: light;
  --primary: #5e63ff;
  --primary-dark: #252d80;
  --accent: #ff8a65;
  --surface: #ffffff;
  --surface-blur: rgba(255, 255, 255, 0.88);
  --text: #10131f;
  --text-muted: #2f3551;
  --border: rgba(94, 99, 255, 0.28);
  --border-strong: rgba(94, 99, 255, 0.35);
  --border-muted: rgba(94, 99, 255, 0.2);
  --border-light: rgba(94, 99, 255, 0.12);
  --badge-info-bg: rgba(94, 99, 255, 0.16);
  --badge-info-text: #2b2f6d;
  --badge-warning-bg: #ffe2d8;
  --badge-warning-text: #7a2d12;
  --success: #0f7b4d;
  --error: #a03033;
  --shadow-soft: 0 12px 30px rgba(37, 36, 92, 0.18);
  --shadow-focus: 0 0 0 3px rgba(94, 99, 255, 0.32);
  --shadow-elevated: 0 20px 42px rgba(26, 24, 78, 0.22);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: #eff1ff;
  background: radial-gradient(circle at 20% 20%, #f4f5ff 0%, #dde1ff 45%, #cfd7ff 75%, #c5cff9 100%);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--primary-dark);
}

header {
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 0% 0%, rgba(255, 255, 255, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 100% 0%, rgba(255, 255, 255, 0.18) 0%, transparent 55%),
    linear-gradient(120deg, #1d2356 0%, #3f2d91 45%, #6a34de 100%);
  color: #ffffff;
  padding: 1.75rem 1.5rem;
  box-shadow: var(--shadow-elevated);
}

header::before,
header::after {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(circle at center, rgba(255, 138, 101, 0.18) 0%, transparent 65%);
  transform: rotate(18deg) scale(0.85);
  opacity: 0.9;
  z-index: 0;
  pointer-events: none;
}

header::after {
  inset: auto;
  width: 55%;
  height: 160%;
  right: -15%;
  bottom: -30%;
  background: radial-gradient(circle at center, rgba(121, 201, 255, 0.25) 0%, transparent 70%);
  transform: rotate(-16deg);
}

header > * {
  position: relative;
  z-index: 1;
}

.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.header-actions > * {
  flex-shrink: 0;
}

#export-docx-button {
  margin-top: 1rem;
}

.site-header__brand {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

header h1 {
  margin: 0;
  font-size: 2.1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: none;
}

.site-tagline {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  color: rgba(255, 255, 255, 0.78);
}

header button,
.header-cta {
  background-color: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.82);
  color: #ffffff;
  padding: 0.75rem 1.6rem;
  border-radius: 999px;
  cursor: pointer;
  font-size: 1rem;
  letter-spacing: 0.02em;
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

header button:hover,
header button:focus-visible,
.header-cta:hover,
.header-cta:focus-visible {
  background-color: #ffffff;
  color: var(--primary-dark);
  transform: translateY(-1px);
  outline: none;
  box-shadow: var(--shadow-focus);
}

main {
  max-width: 880px;
  width: 100%;
  margin: 0 auto;
  padding: 2.75rem 1.5rem 3.5rem;
  flex: 1;
}

section {
  background-color: var(--surface-blur);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 22px;
  padding: 2.2rem 2.4rem;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-soft);
  margin-bottom: 2.2rem;
}

@supports not (backdrop-filter: blur(1px)) {
  section {
    background-color: rgba(255, 255, 255, 0.97);
  }
}

section h2 {
  margin-top: 0;
  color: var(--primary-dark);
  font-size: 1.65rem;
}

.module-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.2rem;
}

.module-entry {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  padding: 1rem 1.25rem;
  border-radius: 16px;
  border: 1px solid var(--border);
  background-color: rgba(255, 255, 255, 0.94);
}

.module-entry.is-active {
  border-color: var(--primary);
  box-shadow: var(--shadow-focus);
}

.module-entry__title {
  margin: 0;
  font-size: 1.2rem;
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.module-entry__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.1rem 0.6rem;
  border-radius: 999px;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 600;
  background-color: var(--badge-info-bg);
  color: var(--badge-info-text);
}

.module-entry__badge--success {
  background-color: rgba(15, 123, 77, 0.18);
  color: var(--success);
}

.module-entry__badge--info {
  background-color: var(--badge-info-bg);
  color: var(--badge-info-text);
}

.module-entry__badge--warning {
  background-color: var(--badge-warning-bg);
  color: var(--badge-warning-text);
}

.module-entry__status {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.module-entry__meta {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.module-entry__actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 0.6rem;
}

.meta-subtitle {
  margin-top: 0.2rem;
  color: var(--text-muted);
}

form {
  margin-top: 1.5rem;
}

.login-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.2rem;
}

.login-actions button {
  flex: 1 1 180px;
  min-width: 180px;
}

.quiz-controls {
  display: flex;
  justify-content: flex-end;
  margin-top: 1.5rem;
}

.question-hint {
  margin: 0.5rem 0 1rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  font-style: italic;
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.6rem;
  color: var(--text-muted);
}

input[type="text"],
input[type="password"],
select,
textarea {
  width: 100%;
  padding: 0.95rem 1rem;
  border: 1px solid var(--border-muted);
  border-radius: 14px;
  font-size: 1rem;
  background-color: rgba(255, 255, 255, 0.95);
  color: var(--text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: none;
  border-color: var(--primary);
  box-shadow: var(--shadow-focus);
  background-color: #ffffff;
}

textarea {
  min-height: 140px;
  resize: vertical;
  font-family: inherit;
  line-height: 1.5;
}

p {
  margin-block: 0.9rem;
}

button.primary,
button.secondary {
  padding: 0.9rem 1.9rem;
  border: none;
  border-radius: 999px;
  font-size: 1.05rem;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

button.primary {
  background: linear-gradient(120deg, var(--primary), var(--primary-dark));
  color: #ffffff;
  box-shadow: var(--shadow-elevated);
}

button.secondary {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--border-light);
  color: var(--badge-info-text);
}

button.danger {
  background: rgba(160, 48, 51, 0.08);
  border: 1px solid rgba(160, 48, 51, 0.38);
  color: var(--error);
}

form > button.primary,
form > button.secondary,
form > button.danger {
  margin-top: 1.6rem;
}

button.primary:hover,
button.primary:focus-visible,
button.secondary:hover,
button.secondary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(26, 24, 78, 0.24);
  outline: none;
}

button.danger:hover,
button.danger:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(160, 48, 51, 0.22);
  outline: none;
  background: rgba(160, 48, 51, 0.12);
  border-color: rgba(160, 48, 51, 0.5);
}

fieldset {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.85rem;
  background-color: rgba(255, 255, 255, 0.94);
}

legend {
  font-weight: 600;
  padding: 0 0.6rem;
  color: var(--primary-dark);
}

.status-message {
  margin-top: 1.1rem;
  padding: 0.95rem 1.15rem;
  border-radius: 14px;
  border: 1px solid transparent;
  background-color: rgba(255, 255, 255, 0.78);
  min-height: 1.6rem;
  color: var(--text);
}

.status-message.is-error {
  background-color: rgba(160, 48, 51, 0.12);
  border-color: rgba(160, 48, 51, 0.38);
  color: var(--error);
}

.status-message.is-success {
  background-color: rgba(15, 123, 77, 0.12);
  border-color: rgba(15, 123, 77, 0.35);
  color: var(--success);
}

#admin-panel {
  border: 1px solid var(--border-light);
}

#admin-panel #admin-intro {
  margin-bottom: 1rem;
  color: var(--text-muted);
}

.admin-modules {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  margin-top: 1.2rem;
}

.admin-user-list,
.admin-bans {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.2rem;
}

.admin-user-card,
.admin-ban-card {
  border: 1px solid var(--border-light);
  border-radius: 18px;
  background-color: rgba(255, 255, 255, 0.94);
  padding: 1.1rem 1.3rem;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.admin-user-card__header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.6rem;
}

.admin-user-card__title {
  margin: 0;
  font-size: 1.1rem;
  color: var(--primary-dark);
}

.admin-user-card__meta {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.admin-user-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.4rem;
}

.admin-ban-card__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.6rem;
}

.admin-ban-card__header h3 {
  margin: 0;
  font-size: 1rem;
  color: var(--primary-dark);
}

.admin-ban-card__meta {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.admin-stats {
  display: grid;
  gap: 1.4rem;
}

.admin-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.admin-stats-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.admin-stats-card {
  border: 1px solid var(--border-light);
  border-radius: 18px;
  background-color: rgba(255, 255, 255, 0.94);
  padding: 1.1rem 1.3rem;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.admin-stats-card h3 {
  margin: 0;
  font-size: 1rem;
  color: var(--primary-dark);
}

.admin-stats-card p {
  margin: 0;
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--primary-dark);
}

.admin-stats-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.admin-stats-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.admin-stats-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  border: 1px solid var(--border-light);
  border-radius: 12px;
  padding: 0.6rem 0.8rem;
  background-color: rgba(255, 255, 255, 0.9);
  font-size: 0.95rem;
}

.admin-stats-list li strong {
  font-size: 1rem;
  color: var(--primary-dark);
}

.admin-stats-list__empty {
  justify-content: center;
  color: var(--text-muted);
  font-style: italic;
}

.admin-stats-list--compact li {
  font-size: 0.9rem;
  padding: 0.5rem 0.7rem;
}

.admin-stats-card--stretch {
  grid-column: span 2;
}

@media (max-width: 900px) {
  .admin-stats-card--stretch {
    grid-column: auto;
  }
}

.admin-stats-list--stacked {
  gap: 0.6rem;
}

.admin-stats-list--stacked li {
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 0.35rem;
}

.admin-stats-list__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  width: 100%;
}

.admin-stats-label {
  font-weight: 600;
  color: var(--primary-dark);
}

.admin-stats-submeta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.admin-stats-visitor__header {
  align-items: flex-start;
}

.admin-stats-visitor__identity {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.admin-stats-visitor__name {
  font-weight: 600;
  color: var(--primary-dark);
}

.admin-stats-visitor__meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.admin-stats-visitor__details {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.admin-stats-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.1rem 0.55rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background-color: rgba(37, 123, 254, 0.12);
  color: var(--primary-dark);
}

.admin-stats-badge--new {
  background-color: rgba(58, 181, 74, 0.12);
  color: #216327;
}

.admin-stats-badge--returning {
  background-color: rgba(255, 180, 53, 0.15);
  color: #a15b00;
}

.admin-stats-code {
  font-family: var(--font-mono, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);
  font-size: 0.85rem;
  background-color: rgba(0, 0, 0, 0.05);
  border-radius: 6px;
  padding: 0.1rem 0.35rem;
}


.admin-module-card {
  border: 1px solid var(--border-light);
  border-radius: 18px;
  background-color: rgba(255, 255, 255, 0.95);
  padding: 1.3rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.admin-module-card__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}

.admin-module-card__header h3 {
  margin: 0;
  color: var(--primary-dark);
  font-size: 1.2rem;
}

.admin-module-card__meta {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.admin-module-card__field {
  font-weight: 600;
  color: var(--text-muted);
}

.admin-module-card__field input,
.admin-module-card__field textarea {
  margin-top: 0.45rem;
}

.admin-module-card__input {
  width: 100%;
}

.admin-module-card__textarea {
  min-height: 120px;
}

.admin-module-card__actions {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

.admin-module-card__actions button {
  margin-top: 0;
}

.admin-module-card--create {
  border-style: dashed;
  border-color: var(--border-strong);
  background-color: rgba(255, 255, 255, 0.86);
}

.admin-module-create-form {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.admin-question-section {
  border: 1px solid var(--border-muted);
  border-radius: 14px;
  background-color: rgba(255, 255, 255, 0.9);
  padding: 0.6rem 0.9rem 0.9rem;
}

.admin-question-section summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--primary-dark);
  outline: none;
}

.admin-question-section summary:focus-visible {
  outline: 2px solid var(--primary);
  border-radius: 8px;
}

.admin-question-section[open] summary {
  margin-bottom: 0.6rem;
}

.admin-question-section__content {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.admin-question-intro,
.admin-question-empty {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.95rem;
}

.admin-question-form {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--border-light);
  border-radius: 14px;
  background-color: rgba(255, 255, 255, 0.94);
}

.admin-question-form button {
  margin-top: 0.5rem;
}

.admin-question-options__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.6rem;
}

.admin-question-options__title {
  margin: 0;
  font-weight: 600;
  color: var(--text-muted);
}

.admin-option-toggle {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 500;
  color: var(--text-muted);
}

.admin-option-list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 0.7rem;
}

.admin-question-options button.secondary {
  margin-top: 0;
  align-self: flex-start;
}

.admin-option-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 0.6rem;
}

.admin-option-row input[type="text"] {
  width: 100%;
}

.admin-option-row__toggle {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-weight: 500;
  color: var(--text-muted);
}

.admin-option-row button {
  margin-top: 0;
}

.admin-question-card {
  border: 1px solid var(--border-muted);
  border-radius: 14px;
  background-color: rgba(255, 255, 255, 0.92);
  padding: 0.6rem 0.8rem 0.9rem;
}

.admin-question-card summary {
  font-weight: 600;
  color: var(--primary-dark);
  cursor: pointer;
}

.admin-question-card__body {
  margin-top: 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.admin-question-card__actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 0.6rem;
}

.admin-question-card__actions button {
  margin-top: 0;
}

@media (max-width: 520px) {
  .admin-option-row {
    grid-template-columns: 1fr;
  }

  .admin-option-row button {
    justify-self: flex-start;
  }
}

.intro-card {
  background-color: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--border-light);
  border-radius: 18px;
  padding: 1.2rem 1.4rem;
  margin-bottom: 1.4rem;
}

.intro-card h3 {
  margin: 0 0 0.6rem;
  font-size: 1.15rem;
  color: var(--primary-dark);
}

.intro-card p {
  margin: 0.3rem 0;
}

#module-intro ol {
  margin: 0.5rem 0 1.1rem;
  padding-left: 1.4rem;
}

#module-intro li {
  margin: 0.2rem 0;
}

#category-description {
  margin-top: 0.6rem;
  color: var(--text-muted);
  font-style: italic;
}

.quiz-meta {
  display: grid;
  gap: 0.9rem;
}

#quiz-heading,
#result-title {
  margin-top: 0;
}

.actions-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  margin-top: 1.2rem;
}

.hint-text {
  color: var(--text-muted);
  font-size: 0.97rem;
  margin: 0;
}

.quiz-meta p {
  margin: 0;
  color: var(--text-muted);
}

.result-card {
  background-color: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--border-light);
  border-radius: 18px;
  padding: 1.3rem 1.5rem;
  margin-bottom: 1.2rem;
  box-shadow: 0 12px 28px rgba(28, 25, 90, 0.18);
}

.result-card h3 {
  margin-top: 0;
  color: var(--primary-dark);
}

.result-card p {
  margin: 0.4rem 0;
  color: var(--text);
}

.overview-grid {
  display: grid;
  gap: 1.4rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.category-level-list {
  margin: 0.6rem 0 0;
  padding-left: 1.1rem;
  color: var(--text-muted);
}

.category-level-list li {
  margin: 0.2rem 0;
}

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

.error-card button {
  margin-top: 1rem;
}

.is-error {
  color: var(--error);
}

.is-success {
  color: var(--success);
}

footer {
  text-align: center;
  padding: 1.6rem 1.1rem;
  color: rgba(255, 255, 255, 0.92);
  background: linear-gradient(120deg, var(--primary-dark), var(--primary));
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    transition-delay: 0ms !important;
  }

  header button:hover,
  header button:focus-visible,
  .header-cta:hover,
  .header-cta:focus-visible,
  button.primary:hover,
  button.primary:focus-visible,
  button.secondary:hover,
  button.secondary:focus-visible {
    transform: none;
    transition: none;
  }
}

@media (max-width: 720px) {
  header {
    padding: 1.5rem 1.2rem;
  }

  .header-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .header-actions {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }

  header h1 {
    font-size: 1.6rem;
  }

  .site-tagline {
    font-size: 0.95rem;
  }

  header button,
  .header-cta {
    width: 100%;
  }

  section {
    padding: 1.7rem 1.4rem;
    border-radius: 18px;
  }

  .actions-row {
    flex-direction: column;
    align-items: stretch;
  }

  main {
    padding: 2.2rem 1.1rem 3.2rem;
  }

  fieldset {
    padding: 1rem 1.1rem;
  }
}