*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg-top: #ffffff;
  --bg-mid: #ececee;
  --bg-bottom: #d9d9dd;
  --card: #c8c8ce;
  --card-border: #b0b0b8;
  --tabs-bg: #b8b8c0;
  --tab-inactive: #4a4a52;
  --tab-active-bg: #f2f2f4;
  --text: #1a1a1f;
  --muted: #5c5c64;
  --input-bg: #fafafa;
  --input-border: #a8a8b0;
  --red: #c41e3a;
  --red-hover: #a01830;
  --red-soft: rgba(196, 30, 58, 0.12);
  --red-border: rgba(196, 30, 58, 0.35);
  --red-text: #9b1530;
  --focus-ring: rgba(196, 30, 58, 0.25);
  --success-bg: rgba(22, 101, 52, 0.1);
  --success-border: rgba(22, 101, 52, 0.35);
  --success-text: #166534;
  --radius: 10px;
  --font: system-ui, "Segoe UI", Roboto, Ubuntu, sans-serif;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background:
    linear-gradient(165deg, var(--bg-top) 0%, var(--bg-mid) 45%, var(--bg-bottom) 100%);
  color: var(--text);
  line-height: 1.5;
}

.page {
  max-width: 420px;
  margin: 0 auto;
  padding: 2.5rem 1.25rem 3rem;
}

.header {
  text-align: center;
  margin-bottom: 1.75rem;
}

.title {
  margin: 0 0 0.35rem;
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}

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

.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  padding: 0.3rem;
  background: var(--tabs-bg);
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
}

.tab {
  flex: 1;
  padding: 0.65rem 1rem;
  border: none;
  border-radius: calc(var(--radius) - 4px);
  background: transparent;
  color: var(--tab-inactive);
  font: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.tab:hover {
  color: var(--text);
}

.tab.active {
  background: var(--tab-active-bg);
  color: var(--text);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow:
    0 4px 6px rgba(0, 0, 0, 0.06),
    0 12px 28px rgba(0, 0, 0, 0.08);
}

.form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

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

.label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
}

input[type="email"],
input[type="password"],
input[type="text"],
input[type="tel"] {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--input-border);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text);
  font: inherit;
  font-size: 1rem;
}

input:focus {
  outline: none;
  border-color: var(--red);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.field-error {
  font-size: 0.8rem;
  color: var(--red-text);
  font-weight: 500;
}

.form-captcha__intro {
  margin: 0 0 0.65rem;
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.45;
}

.form-captcha__image-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.form-captcha__image {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--card-border);
  display: block;
}

.form-captcha__hint {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.form-captcha__refresh {
  margin-top: 0;
  align-self: center;
}

.form-captcha__answer-field {
  margin-bottom: 0;
}

.form-forgot {
  margin: -0.25rem 0 0.5rem;
  text-align: right;
}

.form-forgot__link {
  padding: 0;
  border: none;
  background: none;
  font: inherit;
  font-size: 0.875rem;
  color: var(--red);
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.form-forgot__link:hover {
  color: var(--red-hover);
}

.form-forgot__hint {
  margin: 0 0 1rem;
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.45;
}

.msg {
  margin: 0;
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  font-size: 0.9rem;
}

.msg-error {
  background: var(--red-soft);
  border: 1px solid var(--red-border);
  color: var(--red-text);
}

.msg-error.general {
  margin-bottom: 0.25rem;
}

.msg-success {
  background: var(--success-bg);
  border: 1px solid var(--success-border);
  color: var(--success-text);
}

.btn {
  margin-top: 0.25rem;
  padding: 0.75rem 1rem;
  border: none;
  border-radius: 8px;
  background: var(--red);
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}

.btn:hover:not(:disabled) {
  background: var(--red-hover);
}

.btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

[v-cloak] {
  display: none !important;
}

.body-cabinet {
  margin: 0;
  min-height: 100vh;
}

.cabinet-layout {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.top-bar {
  flex-shrink: 0;
  background: var(--tab-active-bg);
  border-bottom: 1px solid var(--card-border);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6);
}

.top-bar__inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.top-bar__brand {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.top-bar__brand:hover {
  color: var(--red);
}

.top-bar__user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.top-bar__name {
  font-size: 0.95rem;
  color: var(--muted);
  max-width: 14rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.btn--outline {
  margin-top: 0;
  padding: 0.5rem 0.9rem;
  font-size: 0.9rem;
  background: #fff;
  color: var(--red);
  border: 2px solid var(--red);
}

.btn--outline:hover:not(:disabled) {
  background: var(--red-soft);
  color: var(--red-hover);
  border-color: var(--red-hover);
}

.cabinet-main {
  flex: 1;
  max-width: 960px;
  width: 100%;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 2.5rem;
}

.cabinet-title {
  margin: 0 0 1.25rem;
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text);
}

.cabinet-list-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.cabinet-list-head .cabinet-title {
  margin: 0;
}

.cabinet-msg {
  margin-bottom: 1rem;
}

.cabinet-hint {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.course-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.course-card {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow:
    0 4px 6px rgba(0, 0, 0, 0.06),
    0 12px 28px rgba(0, 0, 0, 0.06);
  transition:
    box-shadow 0.2s ease,
    transform 0.2s ease,
    border-color 0.2s ease;
}

.course-card:hover {
  transform: translateY(-3px);
  border-color: #9a9aa4;
  box-shadow:
    0 8px 16px rgba(0, 0, 0, 0.1),
    0 20px 40px rgba(0, 0, 0, 0.08);
}

.course-card__image-wrap {
  aspect-ratio: 16 / 9;
  background: var(--tabs-bg);
  overflow: hidden;
}

.course-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.course-card__body {
  padding: 1rem 1.1rem 1.15rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.course-card__title {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--text);
}

.course-card__price {
  margin: 0;
  margin-top: auto;
  padding-top: 0.35rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--red);
}

.course-card__link {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 100%;
  text-decoration: none;
  color: inherit;
  border-radius: inherit;
}

.course-card__link:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 3px;
}

.course-card__link--main {
  flex: 1;
  min-height: 0;
}

.course-card__badge {
  margin: 0;
  margin-top: auto;
  padding-top: 0.35rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--success-text);
}

.course-card__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.1rem 1rem;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  background: rgba(255, 255, 255, 0.35);
}

.course-card__actions .btn {
  margin-top: 0;
}

.btn--open {
  background: var(--success-text);
  color: #fff;
}

.btn--open:hover:not(:disabled) {
  background: #14532d;
  filter: brightness(1.05);
}

.course-owned {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--muted);
}

.course-detail__cta {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--card-border);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}

.course-detail__cta-btn {
  margin-top: 0;
}

.course-detail__checkout-msg {
  margin: 0;
}

.course-detail__owned {
  margin: 0;
}

.cabinet-main--course {
  max-width: 720px;
}

.course-detail__back {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 1.35rem;
  padding: 0.55rem 1.1rem 0.55rem 0.65rem;
  background: linear-gradient(180deg, #ffffff 0%, var(--tab-active-bg) 100%);
  border: 1px solid var(--card-border);
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
  transition:
    border-color 0.18s ease,
    background 0.18s ease,
    color 0.18s ease,
    box-shadow 0.18s ease,
    transform 0.18s ease;
}

.course-detail__back:hover {
  color: var(--red);
  border-color: rgba(196, 30, 58, 0.45);
  background: #fff;
  box-shadow:
    0 2px 8px rgba(196, 30, 58, 0.12),
    0 1px 2px rgba(0, 0, 0, 0.06);
  transform: translateX(-2px);
}

.course-detail__back:active {
  transform: translateX(0) scale(0.98);
}

.course-detail__admin-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.course-detail__back-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--card);
  border: 1px solid var(--card-border);
  color: var(--red);
  flex-shrink: 0;
  transition:
    background 0.18s ease,
    border-color 0.18s ease;
}

.course-detail__back:hover .course-detail__back-icon {
  background: var(--red-soft);
  border-color: rgba(196, 30, 58, 0.35);
}

.course-detail__back-icon svg {
  width: 1.1rem;
  height: 1.1rem;
  display: block;
  margin-left: -1px;
}

.course-detail__back-text {
  padding-right: 0.15rem;
}

.course-detail__hero-wrap {
  border-radius: calc(var(--radius) - 2px);
  overflow: hidden;
  background: var(--tabs-bg);
  margin-bottom: 1.25rem;
}

.course-detail__hero {
  width: 100%;
  height: auto;
  vertical-align: middle;
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.course-detail__title {
  margin: 0 0 1rem;
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--text);
}

.course-detail__description {
  margin: 0;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
}

.cabinet-main--admin-wide {
  max-width: 960px;
}

.admin-back {
  margin-bottom: 1rem;
}

.admin-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.admin-head__title {
  margin-bottom: 0.35rem;
}

.admin-head__subtitle {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
}

.admin-head__action {
  margin-top: 0;
  flex-shrink: 0;
}

.admin-course-edit-preview {
  margin: 0 0 0.75rem;
}

.admin-course-edit-preview-img {
  display: block;
  max-width: 320px;
  width: 100%;
  height: auto;
  border-radius: var(--radius);
  border: 1px solid var(--card-border);
  margin-top: 0.35rem;
}

.inline-code {
  font-size: 0.88em;
  padding: 0.12em 0.35em;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.06);
  border: 1px solid var(--card-border);
}

.admin-pages-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.admin-pages-list__item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.15rem;
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow:
    0 2px 6px rgba(0, 0, 0, 0.05),
    0 8px 20px rgba(0, 0, 0, 0.05);
}

.admin-pages-list__title {
  margin: 0 0 0.35rem;
  font-size: 1.05rem;
  font-weight: 600;
}

.admin-pages-list__meta {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.admin-pages-list__id {
  font-family: ui-monospace, monospace;
}

.admin-pages-list__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.btn--compact {
  padding: 0.45rem 0.85rem;
  font-size: 0.88rem;
}

.btn--danger-outline {
  margin-top: 0;
  background: #fff;
  color: var(--red-text);
  border: 2px solid var(--red-border);
}

.btn--danger-outline:hover:not(:disabled) {
  background: var(--red-soft);
  color: var(--red-hover);
  border-color: var(--red-hover);
}

.admin-edit-form .field-hint {
  margin: 0 0 0.4rem;
  font-size: 0.82rem;
  color: var(--muted);
}

.admin-edit-form .tox-tinymce {
  border-radius: 8px;
  border-color: var(--input-border) !important;
}

.admin-edit-form__actions {
  margin-top: 0.25rem;
}

.course-detail__sections-title {
  margin: 0 0 0.85rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}

.course-pages-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
}

.course-pages-list__item {
  margin: 0;
}

.course-pages-list__row {
  display: flex;
  align-items: stretch;
  gap: 0.5rem;
  width: 100%;
}

.course-pages-list__row .course-pages-list__link {
  flex: 1;
  min-width: 0;
}

.course-pages-list__edit {
  align-self: center;
  flex-shrink: 0;
  white-space: nowrap;
}

.course-lesson__toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.course-lesson__toolbar .course-lesson__back {
  margin-bottom: 0;
}

.course-pages-list__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: var(--tab-active-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  transition:
    border-color 0.15s ease,
    box-shadow 0.15s ease,
    transform 0.15s ease;
}

.course-pages-list__link:hover {
  border-color: rgba(196, 30, 58, 0.35);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  color: var(--red);
}

.course-pages-list__title {
  flex: 1;
  min-width: 0;
}

.course-pages-list__arrow {
  flex-shrink: 0;
  font-size: 1.15rem;
  opacity: 0.75;
}

.course-lesson__body.rich-html,
.rich-html {
  margin-top: 1rem;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  word-break: break-word;
}

.rich-html img,
.rich-html video {
  max-width: 100%;
  height: auto;
}

.rich-html iframe {
  max-width: 100%;
}

.rich-html p {
  margin: 0 0 1em;
}

.rich-html p:last-child {
  margin-bottom: 0;
}