@layer app {
  .dashboard { max-width: 1180px; padding-top: 2.5rem; }
  .dashboard-header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1.5rem; margin-bottom: 1.5rem; }
  .dashboard-header h1 { margin-top: 0.25rem; color: var(--ink); font-size: 2.25rem; letter-spacing: -0.035em; }
  .dashboard-greeting { color: var(--ink); font-size: 1.5rem; font-weight: 800; letter-spacing: -0.025em; }
  .dashboard-tools { display: flex; flex: 0 1 23rem; align-items: center; justify-content: flex-end; gap: 0.75rem; }
  .dashboard-search { position: relative; width: min(18rem, 100%); }
  .dashboard-search > img { position: absolute; z-index: 1; top: 50%; left: 1rem; width: 1.1rem; height: 1.1rem; color: var(--muted); pointer-events: none; transform: translateY(-50%); }
  .dashboard-search input { min-height: 3rem; border-color: var(--line); border-radius: var(--radius-pill); background: var(--sidebar-background); padding: 0.75rem 1rem 0.75rem 2.75rem; font-size: var(--type-caption); }
  .dashboard-search input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent); }
  .dashboard-account-link { display: grid; flex: 0 0 auto; border-radius: 50%; place-items: center; }
  .dashboard-account-link:focus-visible { outline: 3px solid var(--primary); outline-offset: 3px; }
  .dashboard-account-link .user-avatar { width: 2.75rem; height: 2.75rem; }
  .dashboard-focus { display: grid; grid-template-columns: minmax(0, 1fr) clamp(12rem, 22vw, 17rem); gap: clamp(1rem, 4vw, 3rem); align-items: center; overflow: hidden; border-radius: var(--radius-lg); background: var(--sidebar-background); padding: clamp(1.5rem, 3vw, 2.25rem); color: var(--ink); }
  .dashboard-focus-copy { min-width: 0; max-width: 48rem; }
  .dashboard-focus-label { font-size: var(--type-support); font-weight: 800; }
  .dashboard-focus h1 { max-width: 20ch; margin-top: 1rem; overflow-wrap: anywhere; color: var(--ink); font-size: 2.5rem; font-weight: 800; letter-spacing: -0.035em; line-height: 1.03; text-wrap: balance; }
  .dashboard-focus-description { max-width: 62ch; margin-top: 0.65rem; color: var(--muted); }
  .dashboard-focus-description strong { color: var(--ink); }
  .dashboard-focus-action { width: fit-content; margin-top: 1.25rem; border-color: var(--primary); background: var(--primary); color: #ffffff; }
  .dashboard-focus-action:hover { border-color: var(--primary-hover); background: var(--primary-hover); color: #ffffff; }
  .dashboard-focus-art { display: grid; aspect-ratio: 1; place-items: center; }
  .dashboard-focus-art-image { width: 100%; height: 100%; object-fit: contain; }
  .dashboard-attention { display: grid; grid-template-columns: minmax(12rem, 0.35fr) minmax(0, 1fr); gap: 2rem; margin-top: 1rem; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding-block: 1.25rem; }
  .dashboard-attention-heading h2 { color: var(--ink); font-size: 1rem; }
  .dashboard-attention-heading p { margin-top: 0.25rem; font-size: var(--type-caption); }
  .dashboard-attention-list { display: grid; }
  .dashboard-attention-item { display: flex; align-items: center; justify-content: space-between; gap: 1rem; border-bottom: 1px solid var(--line); padding-block: 0.75rem; }
  .dashboard-attention-item:first-child { padding-top: 0; }
  .dashboard-attention-item:last-child { border-bottom: 0; padding-bottom: 0; }
  .dashboard-attention-item strong, .dashboard-attention-item span { display: block; }
  .dashboard-attention-item strong { color: var(--ink); font-size: 0.88rem; }
  .dashboard-attention-item span { margin-top: 0.2rem; color: var(--muted); font-size: 0.78rem; }
  .dashboard-attention-item .link-button { color: var(--primary-hover); font-size: 0.82rem; font-weight: 800; text-decoration: underline; text-underline-offset: 3px; }
  .dashboard-library-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin-top: 1rem; }
  .dashboard-panel-heading { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
  .dashboard-panel-heading h2 { color: var(--ink); font-size: 1.1rem; letter-spacing: -0.025em; }
  .dashboard-panel-heading h1 { color: var(--ink); font-size: 1.5rem; letter-spacing: -0.025em; }
  .dashboard-panel-heading > div > p { max-width: 58ch; margin-top: 0.35rem; font-size: 0.9rem; }
  .dashboard-panel-heading a { color: var(--primary-hover); font-size: 0.82rem; font-weight: 800; text-decoration: underline; text-underline-offset: 3px; }
  .dashboard-courses { margin-top: 1rem; }
  .dashboard-course-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 1rem; }
  .dashboard-course-actions .button { text-decoration: none; }
  .dashboard-course-actions .button:not(.secondary) { color: var(--button-text); }
  .dashboard-course-actions .button.secondary { color: var(--ink); }
  .course-progress-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; margin-top: 1.25rem; }
  .course-progress-item { position: relative; display: flex; min-width: 0; height: 10rem; flex-direction: column; align-items: flex-start; border-radius: var(--radius); padding: 1rem; color: var(--ink); transition: transform 180ms cubic-bezier(.22, 1, .36, 1); }
  .course-progress-item--blue { background: var(--blue-dark); }
  .course-progress-item--gray { background: var(--sidebar-background); }
  .course-progress-item--lime { background: var(--progress); }
  .course-progress-item--empty { border: 1px dashed var(--line-strong); background: #ffffff; }
  .course-progress-add { display: grid; width: 2.5rem; height: 2.5rem; place-items: center; border-radius: 50%; background: var(--blue); color: var(--ink); font-size: 1.5rem; font-weight: 700; line-height: 1; }
  .course-progress-item--empty .course-progress-copy small { max-width: 34ch; color: var(--muted); line-height: 1.4; }
  .course-progress-item:hover { transform: translateY(-2px); }
  .course-progress-item:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }
  .course-progress-item > img { width: 2.5rem; height: 2.5rem; border-radius: 50%; object-fit: cover; }
  .course-progress-copy { display: flex; min-width: 0; flex: 1; flex-direction: column; margin-top: 1rem; }
  .course-progress-copy strong { overflow: hidden; color: var(--ink); font-size: 1.1rem; line-height: 1.25; text-wrap: balance; }
  .course-progress-copy small { margin-top: auto; padding-top: 0.75rem; color: var(--ink); font-size: 0.75rem; font-weight: 700; }
  .course-progress-arrow { position: absolute; top: 1rem; right: 1rem; border-radius: var(--radius-pill); background: rgb(255 255 255 / 72%); padding: 0.1rem 0.55rem; color: var(--ink); font-size: 1rem; font-weight: 800; transition: transform 180ms cubic-bezier(.22, 1, .36, 1); }
  .course-progress-item:hover .course-progress-arrow { transform: translateX(2px); }
  .dashboard-panel { scroll-margin-top: 5rem; border: 1px solid var(--line); border-radius: var(--radius); background: #ffffff; padding: 1.5rem; }
  .dashboard-library-grid .dashboard-panel { border: 0; background: var(--brand-field); padding: 1.25rem; }
  .dashboard-library-grid .dashboard-practice-panel { background: var(--progress); }
  .dashboard-library-grid .dashboard-panel-heading a { color: var(--ink); }
  .dashboard-library-grid .dashboard-list { margin-top: 0.75rem; }
  .dashboard-library-grid .dashboard-panel-empty { min-height: 7rem; align-content: end; border-top: 0; }
  .dashboard-library-grid .dashboard-list-item { grid-template-columns: minmax(0, 1fr) auto; min-height: 3.75rem; padding-block: 0.75rem; }
  .dashboard-library-grid .dashboard-item-state, .dashboard-library-grid .dashboard-item-state.complete { background: transparent; padding: 0; color: var(--ink); }
  .dashboard-study-guides-panel .dashboard-item-icon { background: var(--blue); color: var(--ink); }
  .dashboard-panel-heading > span { color: var(--muted); font-size: var(--type-caption); font-weight: 700; }
  .dashboard-list { margin-top: 1rem; }
  .dashboard-list-item { display: grid; grid-template-columns: 2.5rem minmax(0, 1fr) auto; gap: 0.75rem; align-items: center; min-height: 4.5rem; border-bottom: 1px solid var(--line); padding-block: 1rem; }
  .dashboard-list-item:first-child { padding-top: 0; }
  .dashboard-list-item:last-child { border-bottom: 0; padding-bottom: 0; }
  .dashboard-list-item:hover .dashboard-item-copy strong { color: var(--primary-hover); }
  .dashboard-item-icon { display: grid; width: 2.5rem; height: 2.5rem; place-items: center; border-radius: var(--radius-sm); background: var(--blue); color: var(--ink); font-weight: 800; }
  .dashboard-item-icon.practice { background: var(--blue); }
  .dashboard-item-copy { display: grid; min-width: 0; gap: 0.2rem; }
  .dashboard-item-copy strong { overflow: hidden; color: var(--ink); font-size: 0.85rem; text-overflow: ellipsis; white-space: nowrap; transition: color 180ms cubic-bezier(.22, 1, .36, 1); }
  .dashboard-item-copy small { color: var(--muted); font-size: var(--type-caption); }
  .dashboard-item-state { border-radius: var(--radius-pill); background: var(--blue); padding: 0.25rem 0.55rem; color: var(--primary-hover); font-size: var(--type-caption); font-weight: 800; white-space: nowrap; }
  .dashboard-item-state.complete { background: var(--progress); color: var(--ink); }
  .dashboard-panel-empty { display: grid; justify-items: start; gap: 0.75rem; margin-top: 1rem; border-top: 1px solid var(--line); padding-top: 1.5rem; }
  .dashboard-panel-empty h3 { max-width: 22ch; color: var(--ink); font-size: 1.15rem; letter-spacing: -0.025em; line-height: 1.2; text-wrap: balance; }
  .dashboard-panel-empty p { font-size: 0.85rem; }
  .dashboard-panel-empty a { color: var(--primary-hover); font-size: 0.82rem; font-weight: 800; text-decoration: underline; text-underline-offset: 3px; }
  .library-page { max-width: 960px; padding-top: 2.5rem; }
  .library-header { margin-bottom: 2rem; }
  .library-header-with-action { display: flex; align-items: end; justify-content: space-between; gap: 1.5rem; }
  .library-header h1 { color: var(--ink); font-size: 2.25rem; }
  .library-header p { margin-top: 0.5rem; }
  .library-empty-panel { overflow: hidden; border: 0; background: var(--brand-field); padding: clamp(1.5rem, 5vw, 3.5rem); }
  .library-empty-panel.practice { background: var(--progress); }
  .library-empty { display: grid; grid-template-columns: minmax(0, 1fr) minmax(10rem, 15rem); gap: clamp(1rem, 5vw, 4rem); align-items: center; min-height: 20rem; }
  .library-empty-copy { max-width: 34rem; }
  .library-empty-copy h2 { max-width: 15ch; color: var(--ink); font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; letter-spacing: -0.04em; line-height: 1; text-wrap: balance; }
  .library-empty-copy p { max-width: 48ch; margin-top: 1rem; color: var(--ink); font-size: 1rem; line-height: 1.55; text-wrap: pretty; }
  .library-empty-action { width: fit-content; margin-top: 1.5rem; border-color: var(--ink); background: var(--ink); color: #ffffff; text-decoration: none; }
  .library-empty-action:hover { border-color: var(--primary-hover); background: var(--primary-hover); color: #ffffff; }
  .library-empty-action:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }
  .library-empty-art { width: 100%; max-height: 16rem; object-fit: contain; }

  .course-setup { width: min(680px, calc(100% - 2rem)); padding-top: 2rem; }
  .course-setup-back { display: inline-flex; color: var(--primary-hover); font-size: 0.9rem; font-weight: 800; text-decoration: underline; text-underline-offset: 3px; }
  .course-setup-card { margin-top: 2rem; border-radius: var(--radius); background: var(--blue); padding: clamp(1.5rem, 4vw, 2.75rem); }
  .course-setup-card > h1 { margin-bottom: 2rem; color: var(--ink); font-family: "Manrope", var(--font-sans); font-size: 2.25rem; font-weight: 800; letter-spacing: -0.035em; line-height: 1.02; }
  .course-setup-form { display: grid; gap: 2rem; }
  .course-form-heading { display: grid; gap: 0.2rem; }
  .course-form-heading strong { color: var(--ink); font-family: "Manrope", var(--font-sans); font-size: 1.25rem; font-weight: 800; }
  .course-form-heading span { color: var(--muted); font-size: 0.9rem; }
  .course-setup-form .field { gap: 0.6rem; }
  .course-setup-form .field > label, .cover-picker legend { font-size: 1rem; font-weight: 700; }
  .course-name-field input { border-color: var(--line-strong); background: #ffffff; font-size: 1.15rem; }
  .material-field > p { margin-top: 0.25rem; font-size: 0.86rem; }
  .material-dropzone { display: grid; gap: 0.2rem; border: 1px dashed var(--line-strong); border-radius: 0.5rem; background: #ffffff; padding: 1.2rem 1.3rem; color: var(--muted); cursor: pointer; font-size: 0.8rem; transition: background 0.2s ease, border-color 0.2s ease; }
  .material-dropzone:hover { border-color: var(--primary); }
  .material-dropzone-title { color: var(--primary-hover); font-size: 0.9rem; font-weight: 800; }
  .material-input { position: absolute; width: 1px; height: 1px; clip: rect(0 0 0 0); }
  .selected-files { margin-top: 0.7rem; color: var(--muted); font-size: 0.8rem; }
  .selected-files ul { display: grid; gap: 0.45rem; list-style: none; }
  .selected-file { display: flex; align-items: center; gap: 0.7rem; border: 1px solid var(--line); border-radius: 0.6rem; background: rgba(255, 255, 255, 0.7); padding: 0.55rem 0.7rem; color: var(--ink); }
  .selected-file::before { content: "FILE"; border-radius: var(--radius-pill); background: var(--cream-dark); padding: 0.22rem 0.38rem; color: var(--muted); font-size: 0.62rem; font-weight: 700; letter-spacing: 0.04em; }
  .selected-file-name { overflow: hidden; font-weight: 600; text-overflow: ellipsis; white-space: nowrap; }
  .selected-file-meta { margin-left: auto; color: var(--muted); font-size: 0.73rem; white-space: nowrap; }
  .course-setup-actions { display: flex; justify-content: flex-end; border-top: 1px solid var(--line); padding-top: 1.5rem; }
  .course-setup-actions .button { min-height: 3rem; background: var(--button); border-color: var(--button); font-weight: 800; }

  .cover-picker { display: grid; gap: 0.75rem; border: none; padding: 0; margin: 0; }
  .cover-picker legend { font-size: 1rem; font-weight: 700; margin-bottom: 0.5rem; color: var(--ink); }
  .cover-options { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
  .cover-option { position: relative; cursor: pointer; display: block; }
  .cover-option-input { position: absolute; opacity: 0; width: 0; height: 0; }
  .cover-option-content { display: flex; flex-direction: column; height: 100%; border: 2px solid var(--line); border-radius: 0.75rem; overflow: hidden; background: #ffffff; transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease; }
  .cover-option:hover .cover-option-content { transform: translateY(-2px); box-shadow: 0 4px 8px rgba(0, 0, 0, 0.08); border-color: var(--line-strong); }
  .cover-option-input:checked + .cover-option-content { border-color: var(--primary); background: #f5f8ff; box-shadow: 0 4px 12px rgba(35, 86, 246, 0.15); }
  .cover-option-preview { aspect-ratio: 3 / 2; overflow: hidden; background: var(--blue); border-bottom: 1px solid var(--line); }
  .cover-option-preview img { width: 100%; height: 100%; object-fit: cover; display: block; }
  .cover-option-info { padding: 0.6rem 0.75rem; display: flex; flex-direction: column; gap: 0.1rem; }
  .cover-option-name { font-weight: 800; font-size: 0.85rem; color: var(--ink); }

  .chat-empty { display: grid; max-width: 30rem; margin: auto; place-content: center; gap: 0.4rem; color: var(--muted); text-align: center; }
  .chat-empty strong { color: var(--ink); font-family: "Manrope", var(--font-sans); font-size: 1.15rem; font-weight: 800; }
  .chat-empty span { font-size: 0.88rem; }

  .message { display: grid; max-width: 82%; gap: 0.4rem; opacity: 0; }
  .message.user { align-self: flex-end; animation: message-slide-in 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards; }
  .message.assistant { align-self: flex-start; animation: message-slide-in 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards; }

  @keyframes message-slide-in {
    from { opacity: 0; transform: translateY(12px) scale(0.98); }
    to { opacity: 1; transform: translateY(0) scale(1); }
  }

  .message.assistant.streaming.thinking .bubble {
    animation: pulse-thinking 1.2s ease-in-out infinite alternate;
  }

  @keyframes pulse-thinking {
    from { opacity: 0.6; }
    to { opacity: 1; }
  }

  .message.assistant.streaming .bubble::after {
    content: "▋";
    display: inline-block;
    margin-left: 3px;
    color: var(--primary);
    animation: blink-cursor 0.8s steps(2, start) infinite;
  }

  @keyframes blink-cursor {
    to { visibility: hidden; }
  }

  .bubble { border: 1px solid var(--line); border-radius: 1.1rem; background: var(--card); padding: 0.85rem 1.1rem; white-space: pre-wrap; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02); }
  .message.user .bubble { border-color: var(--ink); background: var(--ink); color: white; }
  .citation-list { display: flex; min-width: 0; flex-wrap: wrap; align-items: center; gap: 0.4rem; padding-left: 0.15rem; }
  .citation-label { color: var(--muted); font-size: 0.75rem; font-weight: 700; }
  .citation-link { display: block; max-width: min(15rem, 100%); overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius-pill); background: var(--card); padding: 0.35rem 0.7rem; color: var(--primary); font-size: 0.75rem; font-weight: 800; text-decoration: none; text-overflow: ellipsis; white-space: nowrap; }
  .citation-link::after { content: " ↗"; }
  .citation-link:hover { border-color: var(--primary); color: var(--primary); }
  .citation-link:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; }
  .back-link { display: inline-flex; align-items: center; gap: 0.4rem; color: var(--muted); font-size: 0.88rem; font-weight: 600; }
  .back-link:hover { color: var(--ink); }
  .course-hero { display: flex; align-items: center; gap: 1.25rem; margin-top: 1.25rem; }
  .course-hero-cover { width: 4.5rem; height: 4.5rem; flex-shrink: 0; overflow: hidden; border-radius: 1.1rem; box-shadow: var(--shadow); }
  .course-hero-cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
  .course-hero-text h1 { font-size: clamp(2.2rem, 4.5vw, 3.5rem); }
  .course-hero-text p { margin-top: 0.2rem; }
  .section { margin-top: 2rem; }
  .danger-text, .error-text { color: var(--danger) !important; }
  .callout { border-radius: var(--radius-sm); background: var(--peach); padding: 1rem 1.25rem; }
  .practice-list { display: grid; gap: 0.75rem; }
  .course-page { width: min(960px, calc(100% - 2rem)); padding-top: 2.5rem; }
  .course-page .back-link { color: var(--primary-hover); font-weight: 800; }
  .course-hero { gap: 1rem; margin-top: 1.75rem; }
  .course-hero-cover { width: 4rem; height: 4rem; border-radius: 0.75rem; box-shadow: none; }
  .course-hero-text h1 { color: var(--ink); font-family: "Manrope", var(--font-sans); font-size: 2.5rem; font-weight: 800; letter-spacing: -0.035em; line-height: 1; }
  .course-hero-text { min-width: 0; }
  .course-hero-actions { display: flex; align-items: center; gap: 1rem; margin-left: auto; }
  .course-hero-actions a { color: var(--primary-hover); font-size: 0.85rem; font-weight: 800; text-decoration: underline; text-underline-offset: 3px; }
  .course-section-return { display: inline-flex; align-items: center; gap: 0.4rem; margin-top: 2rem; color: var(--primary-hover); font-size: 0.88rem; font-weight: 800; }
  .course-board { display: grid; gap: 1.5rem; margin-top: 2.5rem; }
  .course-section-heading { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
  .course-section-heading > div { display: flex; align-items: baseline; gap: 0.65rem; }
  .course-section-heading h2 { color: var(--ink); font-size: 1.35rem; letter-spacing: -0.025em; }
  .course-materials-heading-link { position: relative; z-index: 1; color: var(--ink); font-size: 1.35rem; font-weight: 800; letter-spacing: -0.025em; line-height: 1.2; }
  .course-section-heading span { color: var(--muted); font-size: 0.8rem; font-weight: 700; }
  .course-section-heading > a:not(.button), .course-material-add { color: var(--primary-hover); font-size: 0.82rem; font-weight: 800; text-decoration: underline; text-underline-offset: 3px; }
  .course-section-heading a:focus-visible, .course-guide-row:focus-visible, .course-practice-list a:focus-visible, .course-material-row:focus-visible, .course-hero-actions a:focus-visible, .course-section-return:focus-visible { outline: 3px solid rgb(18 111 196 / 25%); outline-offset: 3px; }
  .course-guides { border-radius: var(--radius); background: var(--brand-field); padding: clamp(1.25rem, 3vw, 2rem); }
  .course-guides .button { border-color: var(--ink); background: var(--ink); color: #ffffff; }
  .course-guide-list { display: grid; margin-top: 1.25rem; border-top: 1px solid rgb(31 36 44 / 24%); }
  .course-guide-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; border-bottom: 1px solid rgb(31 36 44 / 24%); padding-block: 1rem; }
  .course-guide-row > span { display: grid; min-width: 0; gap: 0.2rem; }
  .course-guide-row strong { overflow: hidden; color: var(--ink); font-size: 1rem; text-overflow: ellipsis; white-space: nowrap; }
  .course-guide-row small { color: var(--ink); font-size: 0.8rem; }
  .course-guide-row b { color: var(--ink); transition: transform 180ms cubic-bezier(.22, 1, .36, 1); }
  .course-guide-row:hover b { transform: translateX(3px); }
  .course-view-all { display: inline-flex; margin-top: 1.25rem; color: var(--ink); font-size: 0.85rem; font-weight: 800; text-decoration: underline; text-underline-offset: 3px; }
  .course-guide-empty { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 2rem; align-items: end; margin-top: 1.25rem; border-top: 1px solid rgb(31 36 44 / 24%); padding-top: 1.5rem; }
  .course-guide-empty h3, .course-practice-empty h3 { color: var(--ink); font-size: 1.35rem; letter-spacing: -0.03em; line-height: 1.15; text-wrap: balance; }
  .course-guide-empty p, .course-practice-empty p { max-width: 46ch; margin-top: 0.35rem; color: var(--ink); font-size: 0.88rem; }
  .course-guide-empty-action { display: flex; align-items: center; gap: 1.25rem; border-radius: var(--radius-pill); background: var(--ink); padding: 0.75rem 1rem; color: #ffffff; font-size: 0.85rem; font-weight: 800; white-space: nowrap; }
  .course-guide-empty-action:hover span { transform: translateX(3px); }
  .course-guide-empty-action span { transition: transform 180ms cubic-bezier(.22, 1, .36, 1); }
  .course-supporting-tools { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(15rem, 0.65fr); gap: 1.5rem; align-items: stretch; }
  .course-practice, .course-materials { border: 1px solid var(--line); border-radius: var(--radius); background: #ffffff; padding: 1.25rem; }
  .course-practice { display: flex; flex-direction: column; background: var(--progress); }
  .course-practice-list { display: grid; margin-top: 1rem; }
  .course-practice-list a { display: flex; align-items: center; justify-content: space-between; gap: 1rem; border-top: 1px solid rgb(31 36 44 / 22%); padding-block: 0.85rem; }
  .course-practice-list strong { overflow: hidden; color: var(--ink); font-size: 0.9rem; text-overflow: ellipsis; white-space: nowrap; }
  .course-practice-list span { color: var(--ink); font-size: 0.8rem; font-weight: 800; white-space: nowrap; }
  .course-practice-empty { display: flex; flex: 1; flex-direction: column; align-items: flex-start; justify-content: space-between; gap: 1.5rem; margin-top: 1rem; border-top: 1px solid rgb(31 36 44 / 22%); padding-top: 1rem; }
  .course-practice-empty a { display: flex; width: 100%; align-items: center; justify-content: space-between; color: var(--ink); font-size: 0.85rem; font-weight: 800; }
  .course-materials { min-width: 0; scroll-margin-top: 2rem; }
  .course-material-add { display: inline-flex; cursor: pointer; }
  .course-material-preview { display: grid; grid-auto-columns: 6rem; grid-auto-flow: column; gap: 0.75rem; overflow-x: auto; margin-top: 1rem; padding-bottom: 0.25rem; }
  .material-library { grid-template-columns: repeat(auto-fill, minmax(7rem, 1fr)); grid-auto-columns: auto; grid-auto-flow: row; overflow: visible; }
  .course-material-card { position: relative; min-width: 0; }
  .course-material-row { display: grid; min-width: 0; align-content: start; gap: 0.25rem; }
  .course-material-row:hover strong { color: var(--primary-hover); }
  .course-material-row strong { overflow: hidden; margin-top: 0.35rem; color: var(--ink); font-size: 0.78rem; line-height: 1.3; text-overflow: ellipsis; white-space: nowrap; }
  .course-material-thumb { display: grid; aspect-ratio: 4 / 3; overflow: hidden; place-items: center; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--blue); }
  .course-material-thumb img { width: 100%; height: 100%; object-fit: cover; }
  .course-material-type { color: var(--primary-hover); font-size: 0.72rem; font-weight: 800; }
  .course-material-delete { position: absolute; top: 0.35rem; right: 0.35rem; display: grid; width: 1.8rem; height: 1.8rem; place-items: center; border: 0; border-radius: 50%; background: rgb(255 255 255 / 90%); cursor: pointer; }
  .course-material-delete:hover { background: #fff0f1; }
  .course-material-delete:focus-visible { outline: 3px solid rgb(18 111 196 / 25%); outline-offset: 2px; }
  .course-material-delete img { width: 0.9rem; height: 0.9rem; }
  .course-material-state { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -75%); }
  .course-material-state .material-loader { width: 1.5rem; height: 1.5rem; border-width: 2px; }
  .study-guide-new { display: grid; gap: 1.5rem; margin-top: 2rem; }
  .study-guide-new > h1 { color: var(--ink); font-size: 2rem; letter-spacing: -0.035em; }
  .study-guide-new > .guide-request { justify-items: end; }
  .study-guide-new > .course-guide-empty { border: 1px solid var(--line); border-radius: var(--radius); background: var(--blue); padding: 1.5rem; }
  .course-workspace { display: grid; gap: 1.25rem; width: min(100%, 760px); margin-top: 2rem; }
  .course-focus { display: flex; justify-content: space-between; gap: 1.5rem; align-items: end; border: 1px solid var(--line); border-radius: 0.75rem; background: var(--blue); padding: 1.5rem; }
  .course-focus p { margin-bottom: 0.5rem; color: var(--primary-hover); font-size: 0.9rem; font-weight: 800; }
  .course-focus h2 { color: var(--ink); font-family: "Manrope", var(--font-sans); font-size: 1.5rem; font-weight: 800; letter-spacing: -0.025em; }
  .course-focus span { display: block; margin-top: 0.35rem; color: var(--muted); }
  .course-workspace .chat { overflow: hidden; border: 1px solid var(--line); border-radius: 0.75rem; background: #ffffff; box-shadow: none; }
  .course-workspace .chat-header { padding: 1.25rem 1.5rem; border-bottom-color: var(--line); }
  .course-workspace .chat-header h2 { color: var(--ink); font-family: "Manrope", var(--font-sans); font-size: 1.2rem; font-weight: 800; }
  .course-workspace .messages { min-height: 22rem; background: var(--blue); }
  .course-workspace .bubble { border-color: var(--line); border-radius: 0.5rem; }
  .course-workspace .message.user .bubble { border-color: var(--primary); background: var(--primary); }
  .course-workspace .chat-form { border-top: 1px solid var(--line); padding: 1rem; align-items: center; }
  .course-workspace .chat-form .button { background: var(--button); border-color: var(--button); }
  .course-next { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
  .course-next a { display: grid; grid-template-columns: 1fr auto; gap: 0.35rem 1rem; border: 1px solid var(--line); border-radius: 0.75rem; padding: 1.1rem 1.25rem; transition: border-color 180ms cubic-bezier(.22, 1, .36, 1), transform 180ms cubic-bezier(.22, 1, .36, 1); }
  .course-next a:hover { border-color: var(--primary); transform: translateY(-2px); }
  .course-next strong { color: var(--ink); font-family: "Manrope", var(--font-sans); font-weight: 800; }
  .course-next span { color: var(--muted); font-size: 0.85rem; }
  .course-next b { grid-column: 2; grid-row: 1 / span 2; align-self: center; color: var(--primary-hover); font-size: 1.2rem; }

  .study-hub { display: grid; gap: 1rem; margin-top: 2rem; }
  .guide-form { width: 100%; }
  .guide-form h2 { color: var(--ink); font-size: 1.5rem; }
  .guide-request { display: grid; justify-items: end; gap: 1rem; margin-top: 1rem; }
  .source-picker { width: 100%; margin: 0; border: 0; padding: 0; }
  .source-picker-heading { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
  .source-picker-heading legend { color: var(--ink); font-size: 0.85rem; font-weight: 800; }
  .source-picker-heading label { display: flex; align-items: center; gap: 0.4rem; color: var(--primary-hover); font-size: 0.8rem; font-weight: 800; cursor: pointer; }
  .source-picker-heading input, .source-option > input { width: 1rem; height: 1rem; margin: 0; accent-color: var(--primary); }
  .source-options { display: grid; grid-template-columns: repeat(auto-fill, 15rem); gap: 1rem; margin-top: 0.75rem; }
  .source-option { position: relative; display: grid; grid-template-rows: minmax(0, 1fr) auto; width: 15rem; height: 13rem; min-width: 0; gap: 0.65rem; border: 1px solid var(--line); border-radius: var(--radius); padding: 0.75rem; cursor: pointer; }
  .source-option > input { position: absolute; z-index: 1; top: 1rem; right: 1rem; }
  .source-option:has(input:checked) { border-color: var(--primary); background: var(--blue); }
  .source-option:has(input:focus-visible) { outline: 3px solid rgb(18 111 196 / 20%); outline-offset: 2px; }
  .source-preview { display: grid; aspect-ratio: 4 / 3; overflow: hidden; place-items: center; border-radius: 0.45rem; background: #ffffff; color: var(--primary-hover); font-size: 0.75rem; font-weight: 800; }
  .source-preview img { width: 100%; height: 100%; object-fit: contain; }
  .source-option strong { overflow: hidden; color: var(--ink); font-size: 0.85rem; text-overflow: ellipsis; white-space: nowrap; }
  .guide-request .button { min-height: 3rem; font-weight: 800; }
  .guide-creator { justify-self: start; }
  .guide-creator > summary { list-style: none; }
  .guide-creator > summary::-webkit-details-marker { display: none; }
  .guide-creator .guide-request { width: min(calc(100vw - 4rem), 58rem); }
  .guide-builder--preparing { display: grid; grid-template-columns: minmax(0, 1fr) minmax(12rem, 0.45fr); gap: clamp(1.5rem, 5vw, 4rem); align-items: center; min-height: 17rem; border: 1px solid var(--line); border-radius: 0.75rem; background: #ffffff; padding: clamp(1.5rem, 5vw, 3rem); color: var(--ink); }
  .guide-builder--preparing h2 { max-width: 13ch; color: var(--ink); }
  .course-preparing { display: flex; align-items: center; gap: 0.85rem; width: fit-content; margin-top: 1.75rem; border-top: 1px solid rgb(31 36 44 / 24%); padding-top: 1.25rem; }
  .course-preparing strong { color: var(--ink); font-size: 0.9rem; }
  .material-loader { display: block; width: 2rem; height: 2rem; border: 3px solid rgb(31 36 44 / 18%); border-top-color: var(--ink); border-radius: 50%; animation: material-loading 800ms linear infinite; }
  .course-preparing .material-loader { flex: 0 0 auto; border-color: rgb(31 36 44 / 20%); border-top-color: var(--progress); }
  .guide-preparing-art { display: grid; aspect-ratio: 1; place-items: center; }
  .guide-preparing-art img { width: min(100%, 16rem); height: min(100%, 16rem); object-fit: contain; }
  .guide-library { margin-top: 1.5rem; }
  .guide-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1rem; margin-top: 0.75rem; }
  .guide-card { position: relative; display: grid; min-height: 190px; border: 1px solid var(--line); border-radius: 0.75rem; background: #ffffff; padding: 1.2rem; }
  .guide-card-link { color: inherit; text-decoration: none; }
  .guide-card-link:hover h3 { color: var(--primary); }
  .guide-card-label { color: var(--primary-hover); font-size: 0.72rem; font-weight: 800; letter-spacing: 0.05em; text-transform: uppercase; }
  .guide-card h3 { margin-top: 0.55rem; color: var(--ink); font-family: "Manrope", var(--font-sans); font-size: 1.15rem; font-weight: 800; letter-spacing: -0.02em; }
  .guide-card p { margin-top: 0.4rem; color: var(--muted); font-size: 0.86rem; }
  .guide-card-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 0.65rem; margin-top: auto; padding-top: 1.2rem; }
  .guide-card-open { color: var(--primary-hover); font-size: 0.85rem; font-weight: 800; }
  .guide-practice { min-height: 2.25rem; border: 1px solid var(--line); border-radius: 999px; background: #ffffff; padding: 0.4rem 0.8rem; color: var(--ink); font: inherit; font-size: 0.85rem; font-weight: 800; cursor: pointer; }
  .guide-practice:hover { border-color: var(--primary); color: var(--primary-hover); }
  .guide-practice:focus-visible { outline: 3px solid rgba(35, 86, 246, 0.28); outline-offset: 2px; }
  .guide-progress { margin-top: 1.25rem; }
  .guide-progress-copy { display: flex; justify-content: space-between; gap: 1rem; color: var(--muted); font-size: 0.85rem; font-weight: 700; }
  .guide-progress-copy span:last-child { color: var(--ink); text-align: right; }
  .guide-progress-track { height: 0.55rem; overflow: hidden; margin-top: 0.55rem; border-radius: 999px; background: var(--blue); }
  .guide-progress-track span { display: block; width: 100%; height: 100%; border-radius: inherit; background: var(--progress); transform: scaleX(0.08); transform-origin: left; transition: transform 1s linear; }
  .guide-progress p { margin-top: 0.55rem; font-size: 0.85rem; }
  .guide-delete { position: absolute; right: 0.7rem; top: 0.55rem; border: 0; background: transparent; color: #6b6b6b; font-size: 0.72rem; cursor: pointer; }
  .guide-delete:hover { color: #c62a38; }
  .guide-delete:focus-visible { outline: 3px solid rgba(35, 86, 246, 0.28); outline-offset: 2px; }
  .delete-dialog { width: min(30rem, calc(100% - 2rem)); border: 0; border-radius: 0.75rem; background: #ffffff; padding: 0; color: var(--ink); box-shadow: 0 8px 24px rgb(16 26 53 / 28%); }
  .delete-dialog::backdrop { background: rgb(16 26 53 / 68%); }
  .delete-dialog-content { padding: clamp(1.25rem, 5vw, 2rem); }
  .delete-dialog h2 { font-family: "Manrope", var(--font-sans); font-size: 1.45rem; font-weight: 800; letter-spacing: -0.025em; }
  .delete-dialog p { margin-top: 0.8rem; color: var(--muted); font-size: 0.95rem; line-height: 1.6; }
  .delete-dialog p strong { color: var(--ink); }
  .delete-dialog-actions { display: flex; justify-content: flex-end; gap: 0.65rem; margin-top: 1.5rem; }
  .delete-dialog[open] { animation: delete-dialog-in 180ms cubic-bezier(.22, 1, .36, 1); }

  @keyframes delete-dialog-in {
    from { opacity: 0; transform: translateY(0.5rem) scale(0.98); }
  }
  .study-kicker { margin-bottom: 0.9rem; color: var(--progress); font-size: 0.85rem; font-weight: 800; }
  .materials-file-picker { cursor: pointer; }
  .materials-file-picker input { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .materials-list-heading { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 0.25rem; }
  .materials-list-heading h3 { color: var(--ink); font-family: "Manrope", var(--font-sans); font-size: 1rem; font-weight: 800; }
  .materials-list-heading span { color: var(--muted); font-size: 0.8rem; }
  .practice-hub, .settings-hub, .ask-page { display: grid; gap: 1.5rem; margin-top: 2rem; }
  .practice-heading, .settings-heading, .ask-heading { display: flex; align-items: end; justify-content: space-between; gap: 2rem; }
  .practice-heading h2, .settings-heading h2, .ask-heading h2 { max-width: 20ch; color: var(--ink); font-family: "Manrope", var(--font-sans); font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; letter-spacing: -0.035em; line-height: 1.03; text-wrap: balance; }
  .practice-heading p:last-child, .settings-heading p:last-child, .ask-heading p:last-child { max-width: 52ch; margin-top: 0.7rem; }
  .practice-creator { width: 100%; }
  .practice-creator-title { color: var(--ink); font-size: 1.5rem; }
  .practice-generator { display: grid; justify-items: end; gap: 1.5rem; }
  .practice-style-picker { width: 100%; margin: 0; border: 0; padding: 0; }
  .practice-style-picker legend { margin-bottom: 0.55rem; color: var(--ink); font-size: 0.82rem; font-weight: 800; }
  .practice-style-options { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.65rem; }
  .practice-style-input { position: absolute; width: 1px; height: 1px; overflow: hidden; opacity: 0; }
  .practice-style-option { position: relative; min-width: 0; border: 1px solid var(--line); border-radius: 0.6rem; background: #ffffff; padding: 0.85rem 2.2rem 0.85rem 0.9rem; color: var(--ink); cursor: pointer; transition: border-color 180ms cubic-bezier(.22, 1, .36, 1), background 180ms cubic-bezier(.22, 1, .36, 1); }
  .practice-style-option::after { position: absolute; top: 0.95rem; right: 0.9rem; width: 0.7rem; height: 0.7rem; border: 2px solid var(--line-strong); border-radius: 50%; content: ""; }
  .practice-style-option strong { overflow: hidden; font-size: 0.9rem; font-weight: 800; text-overflow: ellipsis; white-space: nowrap; }
  .practice-style-option:hover { border-color: var(--primary); }
  .practice-style-input:focus-visible + .practice-style-option { outline: 3px solid rgb(18 111 196 / 20%); outline-offset: 3px; }
  .practice-style-input:checked + .practice-style-option { border-color: var(--primary); background: var(--blue); }
  .practice-style-input:checked + .practice-style-option::after { border-color: var(--primary); background: var(--primary); box-shadow: inset 0 0 0 2px var(--blue); }
  .practice-list { gap: 0.75rem; }
  .practice-set-card { display: grid; grid-template-columns: auto minmax(0, 1fr) auto auto; align-items: center; gap: 1rem; border: 1px solid var(--line); border-radius: 0.75rem; padding: 1.1rem 1.25rem; background: #ffffff; transition: border-color 180ms ease, background 180ms ease; }
  .practice-set-card:hover { border-color: var(--primary); background: #f8faff; }
  .practice-set-number { display: grid; width: 2.25rem; height: 2.25rem; place-items: center; border-radius: 50%; background: var(--blue); color: var(--primary); font-size: 0.8rem; font-weight: 800; }
  .practice-set-main { min-width: 0; }
  .practice-set-main h3 { overflow: hidden; color: var(--ink); font-family: "Manrope", var(--font-sans); font-size: 1rem; font-weight: 800; line-height: 1.25; text-overflow: ellipsis; white-space: nowrap; }
  .practice-set-main h3 a:hover { color: var(--primary); }
  .practice-set-main h3 a:focus-visible, .practice-set-open:focus-visible, .practice-set-delete:focus-visible { outline: 3px solid rgba(35, 86, 246, 0.28); outline-offset: 3px; }
  .practice-set-main p { display: flex; gap: 0.45rem; margin-top: 0.25rem; color: var(--muted); font-size: 0.85rem; }
  .practice-set-state { border-radius: 999px; background: var(--blue); padding: 0.3rem 0.65rem; color: var(--muted); font-size: 0.8rem; font-weight: 700; white-space: nowrap; }
  .practice-set-state.scored { background: var(--progress); color: var(--ink); }
  .practice-set-open { display: inline-flex; align-items: center; gap: 0.4rem; color: var(--primary); font-size: 0.9rem; font-weight: 800; white-space: nowrap; }
  .practice-set-card:hover .practice-set-open span { transform: translateX(2px); }
  .practice-set-open span { transition: transform 180ms ease; }
  .practice-set-delete { border: 0; background: transparent; color: #6b6b6b; font-size: 0.75rem; font-weight: 700; cursor: pointer; }
  .practice-set-delete:hover { color: #c62a38; }
  .practice-empty { border: 1px dashed var(--line-strong); border-radius: 0.75rem; padding: 1.5rem; color: var(--muted); }
  .ask-heading .button { background: var(--button); border-color: var(--button); }
  .ask-workspace { display: grid; grid-template-columns: 15rem minmax(0, 1fr); min-height: 34rem; overflow: hidden; border: 1px solid var(--line); border-radius: 0.75rem; }
  .chat-history { min-width: 0; border-right: 1px solid var(--line); background: #f8faff; padding: 1rem; }
  .chat-history-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 0.5rem; padding: 0 0.25rem 0.75rem; }
  .chat-history-heading h3 { color: var(--ink); font-size: 0.9rem; font-weight: 800; }
  .chat-history-heading span, .chat-history-empty { color: var(--muted); font-size: 0.75rem; }
  .chat-history-empty { padding: 0.5rem 0.25rem; line-height: 1.5; }
  .chat-history-list { display: grid; gap: 0.3rem; }
  .chat-history-item { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 0.2rem; border-radius: 0.5rem; }
  .chat-history-item.active { background: var(--blue); }
  .chat-history-item > a { overflow: hidden; padding: 0.65rem 0.7rem; color: var(--muted); font-size: 0.82rem; font-weight: 700; text-overflow: ellipsis; white-space: nowrap; }
  .chat-history-item.active > a { color: var(--primary-hover); }
  .chat-delete { display: grid; width: 2rem; height: 2rem; place-items: center; border: 0; border-radius: 999px; background: transparent; cursor: pointer; }
  .chat-delete:hover { background: #fff0f1; }
  .chat-delete img { width: 1rem; height: 1rem; }
  .nova-chat { display: grid; min-width: 0; grid-template-rows: auto minmax(0, 1fr) auto; }
  .nova-chat-header { border-bottom: 1px solid var(--line); padding: 0.9rem 1rem; }
  .nova-chat-header strong, .nova-chat-header span { display: block; }
  .nova-chat-header strong { color: var(--ink); font-size: 0.9rem; }
  .nova-chat-header span { margin-top: 0.1rem; color: var(--muted); font-size: 0.74rem; }
  .nova-chat-messages { display: flex; min-height: 0; flex-direction: column; gap: 0.7rem; overflow-y: auto; padding: 1rem; background: var(--blue); }
  .nova-chat-messages .message { max-width: 90%; }
  .nova-chat-messages .message.assistant { grid-template-columns: 2rem minmax(0, 1fr); align-items: start; }
  .nova-chat-messages .citation-list { grid-column: 2; }
  .nova-chat-messages .bubble { border-color: var(--line); border-radius: 0.5rem; }
  .nova-chat-messages .message.user .bubble { border-color: var(--primary); background: var(--primary); }
  .nova-chat-form { display: flex; gap: 0.5rem; border-top: 1px solid var(--line); padding: 0.7rem; }
  .nova-chat-form input { min-width: 0; flex: 1; border-color: var(--line); }
  .nova-chat-form .button { background: var(--button); border-color: var(--button); }
  .nova-chat-form .nova-chat-submit { display: grid; width: 2.75rem; padding: 0; place-items: center; font-size: 1.2rem; line-height: 1; }
  .ask-empty { display: grid; max-width: 28rem; place-content: center; justify-items: center; gap: 0.5rem; margin: auto; padding: 2rem; text-align: center; }
  .ask-empty h3 { color: var(--ink); font-family: "Manrope", var(--font-sans); font-size: 1.2rem; font-weight: 800; }
  .ask-empty p { margin-bottom: 0.75rem; color: var(--muted); font-size: 0.9rem; }
  .ask-empty .button { background: var(--button); border-color: var(--button); }
  .settings-heading { display: block; }
  .settings-hub .course-setup-form { width: min(100%, 680px); margin-top: 0.5rem; }
  .settings-danger { display: flex; align-items: center; justify-content: space-between; gap: 1rem; width: min(100%, 680px); border-top: 1px solid var(--line); padding-top: 1.25rem; }
  .settings-danger strong, .settings-danger span { display: block; }
  .settings-danger span { margin-top: 0.25rem; color: var(--muted); font-size: 0.82rem; }

  @media (max-width: 1150px) {
    .dashboard-library-grid { grid-template-columns: 1fr; }
  }

  @media (hover: hover) {
    .course-material-actions { opacity: 0; pointer-events: none; }
    .course-tool--materials:hover .course-material-actions, .course-material-actions:focus-within { opacity: 1; pointer-events: auto; }
  }

  @media (max-width: 900px) {
    .dashboard-account-link { display: none; }
  }

  @media (max-width: 720px) {
    .dashboard-header { align-items: stretch; flex-direction: column; }
    .dashboard-tools, .dashboard-search { width: 100%; flex-basis: auto; }
    .dashboard-focus { grid-template-columns: minmax(0, 1fr) 6.5rem; border-radius: var(--radius); }
    .dashboard-focus h1 { font-size: 2rem; }
    .dashboard-attention { grid-template-columns: 1fr; gap: 1rem; }
    .dashboard-panel-heading { align-items: flex-start; }
    .dashboard-course-actions { justify-content: flex-start; }
    .guide-builder--preparing { grid-template-columns: 1fr; }
    .guide-preparing-art { max-width: 10rem; justify-self: center; }
    .library-header-with-action { align-items: flex-start; flex-direction: column; }
    .library-empty { grid-template-columns: 1fr; min-height: 0; }
    .library-empty-art { width: min(11rem, 48vw); justify-self: end; }
    .course-guide-empty { grid-template-columns: 1fr; align-items: start; }
    .course-guide-empty-action { width: 100%; justify-content: space-between; }
    .course-progress-list { grid-template-columns: 1fr; }
    .course-setup-actions .button { width: 100%; }
    .course-focus { align-items: start; flex-direction: column; }
    .course-hero { align-items: flex-start; flex-wrap: wrap; }
    .course-hero-actions { width: 100%; margin-left: 5rem; }
    .course-supporting-tools { grid-template-columns: 1fr; }
    .course-next { grid-template-columns: 1fr; }
    .guide-request .button { width: 100%; }
    .guide-progress-copy { align-items: flex-start; flex-direction: column; gap: 0.2rem; }
    .guide-progress-copy span:last-child { text-align: left; }
    .materials-count { border-left: 0; border-top: 1px solid var(--line); padding: 0.75rem 0 0; }
    .practice-heading, .settings-heading, .ask-heading { align-items: start; flex-direction: column; }
    .ask-heading form, .ask-heading .button { width: 100%; }
    .ask-workspace { grid-template-columns: 1fr; }
    .chat-history { border-right: 0; border-bottom: 1px solid var(--line); }
    .chat-history-list { display: flex; overflow-x: auto; }
    .chat-history-item { min-width: 11rem; }
    .nova-chat { min-height: 32rem; }
    .settings-danger { align-items: stretch; flex-direction: column; }
    .practice-style-options { grid-template-columns: 1fr; }
    .practice-style-option strong { white-space: normal; }
    .practice-generator > .button, .settings-danger .button { width: 100%; }
    .delete-dialog-actions { align-items: stretch; flex-direction: column-reverse; }
    .delete-dialog-actions .button, .delete-dialog-actions form { width: 100%; }
    .practice-set-card { grid-template-columns: auto minmax(0, 1fr) auto; gap: 0.75rem; padding: 1rem; }
    .practice-set-state { grid-column: 2; justify-self: start; }
    .practice-set-open { grid-column: 3; grid-row: 1 / span 2; }
    .practice-set-delete { grid-column: 3; }
  }

  @media (max-width: 480px) {
    .dashboard-focus { grid-template-columns: 1fr; }
    .dashboard-focus-art { display: none; }
    .dashboard-focus-action { width: 100%; }
    .course-hero-actions { margin-left: 0; }
  }

  @media (prefers-reduced-motion: reduce) {
    .course-progress-item, .course-progress-arrow, .course-guide-row b, .course-guide-empty-action span { transition: none; }
    .guide-progress-track span { transition: none; }
    .delete-dialog[open] { animation: none; }
    .practice-style-option { transition: none; }
    .material-loader { animation: none; }
  }

}

@keyframes material-loading {
  to { transform: rotate(360deg); }
}