/* ZemGuru modular styles 13/16. Original cascade order preserved. */
/* Step 135: support ticket drawer dark readability */
body[data-theme="dark"] .ticket-drawer {
  background: #17221d;
  color: #f2f7f3;
  opacity: 1;
}

body[data-theme="dark"] .ticket-drawer-overlay {
  z-index: 1800;
}

body[data-theme="dark"] .ticket-drawer {
  z-index: 1900;
}

body[data-theme="dark"] .ticket-drawer .drawer-close {
  background: #162b21;
  border-color: rgba(255, 255, 255, 0.1);
  color: #f2f7f3;
}

body[data-theme="dark"] .ticket-drawer .ticket-detail h2 {
  color: #f2f7f3;
}

body[data-theme="dark"] .ticket-drawer .ticket-detail .section-title p,
body[data-theme="dark"] .ticket-drawer .ticket-detail .muted {
  color: rgba(255, 255, 255, 0.68);
}

body[data-theme="dark"] .ticket-drawer .ticket-detail-summary > span {
  background: #162b21 !important;
  border: 1px solid rgba(255, 255, 255, 0.1) !important;
  color: #eaf3ec !important;
  box-shadow: none !important;
}

body[data-theme="dark"] .ticket-drawer .ticket-detail-summary > span > b {
  color: rgba(255, 255, 255, 0.68) !important;
  font-weight: 700;
}

body[data-theme="dark"] .ticket-drawer .ticket-detail-summary > span > small {
  color: rgba(255, 255, 255, 0.55) !important;
}

body[data-theme="dark"] .ticket-drawer .ticket-actions-bar {
  background: #13261d !important;
  border: 1px solid rgba(255, 255, 255, 0.1) !important;
  box-shadow: none !important;
}

body[data-theme="dark"] .ticket-drawer .ticket-actions-bar label {
  color: rgba(255, 255, 255, 0.68) !important;
}

body[data-theme="dark"] .ticket-drawer .ticket-actions-bar select {
  appearance: none;
  -webkit-appearance: none;
  background-color: #162b21 !important;
  border: 1px solid rgba(255, 255, 255, 0.14) !important;
  color: #f2f7f3 !important;
  background-image:
    linear-gradient(45deg, transparent 50%, rgba(255, 255, 255, 0.72) 50%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.72) 50%, transparent 50%);
  background-position: calc(100% - 18px) calc(50% + 1px), calc(100% - 13px) calc(50% + 1px);
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 38px;
}

body[data-theme="dark"] .ticket-drawer .ticket-actions-bar select::-ms-expand {
  display: none;
}

body[data-theme="dark"] .ticket-drawer .ticket-actions-bar select option {
  background: #162b21;
  color: #f2f7f3;
}

body[data-theme="dark"] .ticket-drawer .ticket-actions-bar .btn.secondary {
  background: rgba(88, 185, 108, 0.14) !important;
  border-color: rgba(88, 185, 108, 0.38) !important;
  color: #a9efb4 !important;
}

body[data-theme="dark"] .ticket-drawer .ticket-actions-bar .btn.secondary:hover {
  background: rgba(88, 185, 108, 0.22) !important;
  border-color: rgba(88, 185, 108, 0.48) !important;
  color: #c8f5ce !important;
}

body[data-theme="dark"] .ticket-drawer .message-bubble {
  background: #162b21 !important;
  border: 1px solid rgba(255, 255, 255, 0.1) !important;
  box-shadow: none !important;
}

body[data-theme="dark"] .ticket-drawer .message-bubble.support {
  background: #1a3328 !important;
  border-color: rgba(88, 185, 108, 0.28) !important;
}

body[data-theme="dark"] .ticket-drawer .message-bubble strong {
  color: #ffffff !important;
}

body[data-theme="dark"] .ticket-drawer .message-bubble strong span {
  color: rgba(255, 255, 255, 0.68) !important;
}

body[data-theme="dark"] .ticket-drawer .message-bubble p {
  color: #f2f7f3 !important;
}

body[data-theme="dark"] .ticket-drawer .message-bubble em {
  color: rgba(255, 255, 255, 0.68) !important;
}

body[data-theme="dark"] .ticket-drawer .field label {
  color: #eaf3ec !important;
}

body[data-theme="dark"] .ticket-drawer .field textarea {
  background: #162b21 !important;
  border: 1px solid rgba(255, 255, 255, 0.14) !important;
  color: #f2f7f3 !important;
}

body[data-theme="dark"] .ticket-drawer .field textarea::placeholder {
  color: rgba(255, 255, 255, 0.45) !important;
}

body[data-theme="dark"] .ticket-drawer .btn:not(.secondary):not(.ghost) {
  background: linear-gradient(180deg, #3d9a57 0%, #247338 100%);
  border-color: rgba(88, 185, 108, 0.45);
  color: #ffffff;
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.12) inset;
}

body[data-theme="dark"] .ticket-drawer .btn:not(.secondary):not(.ghost):hover {
  background: linear-gradient(180deg, #47a861 0%, #2a8042 100%);
}

body[data-theme="dark"] .ticket-drawer .notice {
  background: rgba(88, 185, 108, 0.1);
  border: 1px solid rgba(88, 185, 108, 0.24);
  color: #d8f0dc;
}

body[data-theme="dark"] .ticket-drawer .ticket-attachments h3 {
  color: #f2f7f3;
}

body[data-theme="dark"] .nickname-input-wrap {
  background: #162b21;
  border-color: rgba(255, 255, 255, 0.14);
}

body[data-theme="dark"] .nickname-input-wrap input {
  background: transparent;
  color: #f2f7f3;
}

body[data-theme="dark"] .community-member-nickname,
body[data-theme="dark"] .community-profile-nickname,
body[data-theme="dark"] .community-mention {
  color: #7fd99a;
}

/* Step 189: sidebar nav always clickable above main content */
.shell > .sidebar {
  z-index: 120;
  pointer-events: auto;
  isolation: isolate;
}

.shell > .sidebar .brand,
.shell > .sidebar .role-switch {
  pointer-events: none;
}

.shell > .sidebar .menu {
  position: relative;
  z-index: 2;
  pointer-events: auto;
}

.shell > .sidebar .menu button,
.shell > .sidebar .sidebar-logout {
  position: relative;
  z-index: 1;
  pointer-events: auto;
  cursor: pointer;
}

.shell > .sidebar .menu button:disabled {
  pointer-events: none;
  cursor: not-allowed;
}

.shell > .main {
  position: relative;
  z-index: 1;
}

.shell > .watermark {
  pointer-events: none;
}

@media (min-width: 1101px) {
  .shell > .sidebar {
    z-index: 120;
  }

  .shell > .main {
    margin-left: 240px;
    width: calc(100% - 240px);
    max-width: calc(100% - 240px);
  }

  .shell.compact-sidebar > .main {
    margin-left: 88px;
    width: calc(100% - 88px);
    max-width: calc(100% - 88px);
  }
}

@media (max-width: 1100px) {
  .shell > .sidebar {
    z-index: 120;
    pointer-events: auto;
  }

  .shell > .sidebar.open {
    pointer-events: auto;
  }
}

/* Messenger v2 */
.messenger-v2-page {
  height: calc(100dvh - 148px);
  min-height: 520px;
}

.messenger-v2-layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 16px;
  height: 100%;
}

.messenger-v2-sidebar,
.messenger-v2-chat {
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;
  overflow: hidden;
}

.messenger-v2-sidebar-head {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  display: grid;
  gap: 10px;
}

.messenger-v2-sidebar-head h2 {
  margin: 0;
  font-size: 1.1rem;
}

.messenger-v2-channel-list {
  overflow: auto;
  padding: 8px;
  display: grid;
  gap: 6px;
}

.messenger-v2-channel {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  width: 100%;
  text-align: left;
  border: 1px solid transparent;
  border-radius: 14px;
  background: transparent;
  padding: 10px 12px;
  cursor: pointer;
}

.messenger-v2-channel:hover,
.messenger-v2-channel.active {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border-color: color-mix(in srgb, var(--accent) 24%, var(--border));
}

.messenger-v2-channel-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--panel-2);
  font-size: 1rem;
}

.messenger-v2-channel-body {
  min-width: 0;
  display: grid;
  gap: 4px;
}

.messenger-v2-channel-top {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: baseline;
}

.messenger-v2-channel-top strong {
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.messenger-v2-channel-top time {
  color: var(--muted);
  font-size: 0.75rem;
  white-space: nowrap;
}

.messenger-v2-channel-preview {
  color: var(--muted);
  font-size: 0.85rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.messenger-v2-unread {
  min-width: 22px;
  height: 22px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 0.75rem;
  display: grid;
  place-items: center;
  padding: 0 6px;
}

.messenger-v2-chat-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}

.messenger-v2-chat-head strong {
  display: block;
}

.messenger-v2-back {
  display: none;
}

.messenger-v2-feed {
  flex: 1;
  overflow: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  background-color: var(--messenger-chat-wallpaper-base, #dce8e2);
  background-image: var(--messenger-chat-wallpaper-image, none);
  background-size: var(--messenger-chat-wallpaper-size, auto);
}

.messenger-v2-message {
  display: flex;
  flex-direction: column;
  max-width: min(78%, 640px);
}

.messenger-v2-message.is-own {
  align-self: flex-end;
  align-items: flex-end;
}

.messenger-v2-message.is-other {
  align-self: flex-start;
  align-items: flex-start;
}

.messenger-v2-message-author {
  margin: 0 0 4px;
  font-size: 0.78rem;
  color: var(--muted);
}

.messenger-v2-message-bubble {
  border-radius: 16px;
  padding: 10px 12px;
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.03);
}

.messenger-v2-message.is-own .messenger-v2-message-bubble {
  background: color-mix(in srgb, var(--accent) 14%, var(--panel));
  border-color: color-mix(in srgb, var(--accent) 28%, var(--border));
}

.messenger-v2-message-bubble p {
  margin: 0;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.messenger-v2-message-bubble time {
  display: block;
  margin-top: 6px;
  font-size: 0.72rem;
  color: var(--muted);
  text-align: right;
}

.messenger-v2-composer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  padding: 12px 16px 16px;
  border-top: 1px solid var(--border);
  align-items: end;
}

.messenger-v2-chat-empty {
  display: grid;
  place-items: center;
  min-height: 320px;
}

.messenger-v2-error {
  margin: 0;
  padding: 8px 16px;
  color: #b42318;
  background: #fef3f2;
}

body[data-theme="dark"] .messenger-v2-error {
  color: #fda29b;
  background: rgba(180, 35, 24, 0.18);
}

.messenger-v2-loading,
.messenger-v2-empty-feed,
.messenger-v2-empty-list {
  padding: 12px;
}

@media (max-width: 900px) {
  .messenger-v2-page {
    height: calc(100dvh - 120px);
  }

  .messenger-v2-layout {
    grid-template-columns: 1fr;
  }

  .messenger-v2-sidebar.mobile-hidden,
  .messenger-v2-main.mobile-hidden {
    display: none;
  }

  .messenger-v2-back {
    display: inline-flex;
  }
}

/* Student homework list and detail */
.student-homework-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.student-homework-tabs .tab-count {
  display: inline-flex;
  min-width: 20px;
  justify-content: center;
  padding: 0 6px;
  margin-left: 4px;
  border-radius: 999px;
  background: rgba(31, 122, 63, .12);
  font-size: 12px;
  font-weight: 700;
}

.student-homework-list {
  display: grid;
  gap: 14px;
}

.student-homework-card {
  display: grid;
  gap: 12px;
  padding: 18px 20px;
  border: 1px solid #dfe7e2;
  border-radius: 18px;
  background: #fff;
}

.student-homework-card.is-returned {
  border-color: #f0b429;
  background: linear-gradient(180deg, #fff9eb 0%, #ffffff 100%);
  box-shadow: 0 10px 24px rgba(240, 180, 41, .12);
}

.student-homework-card.is-accepted {
  opacity: .82;
  background: #fafbfa;
}

.student-homework-card-head {
  display: grid;
  gap: 4px;
}

.student-homework-course {
  font-weight: 800;
  color: #1f7a3f;
}

.student-homework-path,
.student-homework-due {
  color: var(--muted);
  font-size: 14px;
}

.student-homework-card h3 {
  margin: 0;
  font-size: 20px;
}

.student-homework-card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.student-homework-teacher-comment {
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(240, 180, 41, .12);
}

.student-homework-teacher-comment p {
  margin: 6px 0 0;
}

.student-homework-empty {
  padding: 28px 20px;
}

.student-homework-detail-layout .homework-hero.is-returned {
  border-color: #f0b429;
  background: linear-gradient(180deg, #fff9eb 0%, #ffffff 100%);
}

.student-homework-detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 8px;
}

.student-homework-return-panel {
  border-color: #f0b429;
  background: #fffaf0;
}

.student-homework-prev-answer {
  margin-bottom: 14px;
  padding: 12px 14px;
  border-radius: 12px;
  background: #f5f7f6;
}

body[data-theme="dark"] .student-homework-card {
  background: var(--dark-card);
  border-color: var(--dark-border);
}

body[data-theme="dark"] .student-homework-card.is-returned,
body[data-theme="dark"] .student-homework-detail-layout .homework-hero.is-returned,
body[data-theme="dark"] .student-homework-return-panel {
  background: rgba(240, 180, 41, .08);
  border-color: rgba(240, 180, 41, .35);
}

body[data-theme="dark"] .student-homework-prev-answer {
  background: rgba(255, 255, 255, .04);
}

body[data-theme="dark"] .student-homework-teacher-comment {
  background: rgba(240, 180, 41, .1);
}

/* Простая стартовая страница: вход в образовательный продукт вместо большого лендинга */
.simple-landing {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: clamp(22px, 4vw, 54px);
  background:
    radial-gradient(circle at 18% 16%, rgba(64, 166, 83, .28), transparent 34%),
    linear-gradient(120deg, rgba(5, 13, 10, .94), rgba(7, 18, 16, .88)),
    var(--simple-hero) center/cover no-repeat;
  color: #f4fff6;
}

.simple-entry-shell {
  width: min(1160px, 100%);
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(340px, .85fr);
  gap: clamp(22px, 4vw, 54px);
  align-items: center;
}

.simple-entry-copy {
  display: grid;
  gap: 18px;
}

.simple-entry-copy .brand {
  justify-content: flex-start;
  margin-bottom: 12px;
}

.simple-entry-label,
.simple-login-brand,
.simple-login-status {
  width: fit-content;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.simple-entry-label {
  color: rgba(186, 244, 196, .92);
}

.simple-entry-copy h1 {
  margin: 0;
  max-width: 760px;
  font-size: clamp(42px, 8vw, 92px);
  line-height: .92;
  letter-spacing: -.06em;
}

.simple-entry-lead {
  max-width: 720px;
  margin: 0;
  color: rgba(241, 255, 244, .86);
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.45;
}

.simple-program-card {
  max-width: 760px;
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid rgba(190, 241, 200, .22);
  border-radius: 22px;
  background: rgba(255, 255, 255, .08);
  box-shadow: 0 28px 90px rgba(0, 0, 0, .24);
  backdrop-filter: blur(18px);
}

.simple-program-card > span {
  display: block;
  margin-bottom: 14px;
  color: rgba(237, 255, 240, .68);
  font-weight: 800;
}

.simple-program-list {
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  list-style: none;
}

.simple-program-list li {
  display: grid;
  gap: 4px;
  padding: 14px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 14px;
  background: rgba(0, 0, 0, .16);
}

.simple-program-list b {
  color: #fff;
  font-size: 15px;
}

.simple-program-list small {
  color: rgba(235, 250, 238, .68);
  line-height: 1.35;
}

.simple-entry-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.simple-entry-actions .btn.secondary {
  background: #fff;
  color: #1f6f32;
  border-color: rgba(255,255,255,.36);
}

.simple-entry-actions .simple-light-ghost {
  color: #fff;
  border-color: rgba(255,255,255,.28);
  background: rgba(255,255,255,.06);
}

.simple-login-card {
  width: 100%;
  padding: clamp(24px, 3.5vw, 34px);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 22px;
  background: #0b121d;
  color: #fff;
  box-shadow: 0 34px 110px rgba(0, 0, 0, .42);
}

.simple-login-brand {
  margin-bottom: 22px;
  color: #3cff6f;
}

.simple-login-status {
  display: inline-flex;
  margin-bottom: 12px;
  color: rgba(255,255,255,.54);
}

.simple-login-card h2 {
  margin: 0 0 10px;
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.05;
}

.simple-login-card p {
  margin: 0 0 18px;
  color: rgba(255,255,255,.62);
  line-height: 1.45;
}

.simple-login-card .field label {
  color: rgba(255,255,255,.62);
}

.simple-login-card .field input {
  min-height: 52px;
  background: #eaf2ff;
  color: #111827;
  border-color: transparent;
}

.simple-login-card .btn.full {
  margin-top: 10px;
  width: 100%;
  min-height: 50px;
}

.simple-login-card .login-hints,
.simple-login-note {
  margin: 12px 0 16px;
  padding: 13px 14px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 14px;
  background: rgba(255,255,255,.05);
  color: rgba(255,255,255,.68);
  font-size: 13px;
  line-height: 1.45;
}

.simple-login-card .login-hints p,
.simple-login-card .login-hints .muted {
  color: rgba(255,255,255,.72);
}

.simple-login-card .login-error {
  margin: 12px 0;
}

.simple-login-ready {
  display: grid;
  gap: 12px;
}

@media (max-width: 860px) {
  .simple-landing {
    align-items: start;
    padding: 18px;
  }
  .simple-entry-shell {
    grid-template-columns: 1fr;
  }
  .simple-program-list {
    grid-template-columns: 1fr;
  }
  .simple-entry-actions .btn {
    width: 100%;
    justify-content: center;
  }
}

/* Zen-style lesson content blocks */
.lesson-zen-editor-section {
  gap: 18px;
}

.lesson-zen-intro {
  padding: 14px 16px;
  border: 1px solid #dfe9e2;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(33, 123, 72, 0.08), rgba(255, 255, 255, 0.95));
}

.lesson-zen-intro h3 {
  margin: 0 0 6px;
  font-size: 1.05rem;
}

.lesson-zen-toolbar {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 10px;
  border: 1px solid #dfe9e2;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
}

.lesson-zen-feed {
  display: grid;
  gap: 14px;
}

.lesson-zen-block {
  display: grid;
  gap: 12px;
  padding: 14px;
  border: 1px solid #dfe9e2;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 10px 28px rgba(22, 41, 28, 0.05);
}

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

.lesson-zen-block-type {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #314239;
  font-size: 13px;
  font-weight: 800;
}

.lesson-zen-block-type b {
  display: inline-grid;
  min-width: 32px;
  height: 26px;
  place-items: center;
  padding: 0 6px;
  border-radius: 999px;
  background: #e8f5ec;
  color: var(--green);
  font-size: 11px;
  letter-spacing: 0.04em;
}

.lesson-zen-title-input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  font-size: 1.15rem;
  font-weight: 800;
}

.lesson-zen-editable {
  min-height: 120px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  outline: none;
  line-height: 1.65;
  background: #fbfdfc;
  overflow-wrap: anywhere;
}

.lesson-zen-editable:focus {
  border-color: rgba(47, 111, 78, 0.45);
  box-shadow: 0 0 0 3px rgba(47, 111, 78, 0.08);
  background: #fff;
}

.lesson-zen-editable:empty::before {
  content: attr(data-placeholder);
  color: #8a968f;
}

.lesson-zen-media-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.lesson-zen-media-grid .full-field,
.lesson-zen-preview {
  grid-column: 1 / -1;
}

.lesson-zen-preview {
  display: grid;
  gap: 10px;
  min-height: 90px;
  place-items: center;
  padding: 12px;
  border: 1px dashed #c9d8cf;
  border-radius: 14px;
  background: #f8fbf9;
  color: #6f7b73;
}

.lesson-zen-preview img {
  display: block;
  max-width: 100%;
  max-height: 320px;
  border-radius: 12px;
  object-fit: contain;
}

.lesson-article-image {
  display: grid;
  gap: 8px;
  margin: 8px 0;
}

.lesson-article-image img {
  display: block;
  width: 100%;
  max-height: 620px;
  border-radius: 16px;
  object-fit: contain;
  background: #f5f7f5;
  border: 1px solid #e2e8e4;
}

.lesson-article-image figcaption,
.lesson-article-caption {
  margin: 0;
  color: #66716a;
  font-size: 14px;
  line-height: 1.5;
}

.lesson-article-download {
  justify-self: start;
  color: var(--green);
  font-weight: 700;
  text-decoration: none;
}

.lesson-article-video iframe,
.lesson-pdf-frame {
  width: 100%;
  border: 0;
  border-radius: 16px;
  background: #f4f7f5;
}

.lesson-article-video iframe {
  aspect-ratio: 16 / 9;
  min-height: 260px;
}

.lesson-pdf-frame {
  min-height: 560px;
  margin-top: 10px;
  border: 1px solid #e1e8e3;
}

.lesson-article-file {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border: 1px solid #dfe9e2;
  border-radius: 14px;
  background: #fbfdfc;
}

.lesson-article-file-icon {
  display: grid;
  min-width: 52px;
  height: 44px;
  place-items: center;
  border-radius: 12px;
  background: #e8f5ec;
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
}

.lesson-article-file-body {
  display: grid;
  gap: 3px;
}

.lesson-article-file-body span,
.lesson-article-file-body small {
  color: #66716a;
}

.lesson-article-checklist {
  padding: 14px 16px;
  border: 1px solid #dfe9e2;
  border-radius: 14px;
  background: #f8fbf9;
}

.lesson-article-link a {
  color: var(--green);
  font-weight: 800;
  text-decoration: none;
}

@media (max-width: 760px) {
  .lesson-zen-media-grid,
  .lesson-article-file {
    grid-template-columns: 1fr;
  }

  .lesson-zen-block-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .lesson-pdf-frame {
    min-height: 420px;
  }
}