.curriculum-dashboard {
    width: min(1180px, calc(100% - 40px));
    margin: 72px auto 0;
    scroll-margin-top: 105px;
}

.curriculum-shell {
    display: grid;
    gap: 18px;
}

.curriculum-overview {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) repeat(3, minmax(150px, 0.5fr));
    gap: 12px;
}

.curriculum-summary-card,
.curriculum-metric,
.curriculum-toolbar,
.curriculum-empty {
    border: 1px solid var(--border);
    background: var(--card-bg, var(--white));
    box-shadow: var(--shadow-soft);
    border-radius: 24px;
}

.curriculum-summary-card {
    padding: 22px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 20px;
}

.curriculum-summary-card h2 {
    margin: 5px 0 8px;
    font-size: clamp(24px, 3vw, 38px);
    letter-spacing: -0.045em;
}

.curriculum-summary-card p {
    color: var(--muted);
    line-height: 1.65;
}

.curriculum-ring {
    --progress: 0%;
    width: 94px;
    height: 94px;
    border-radius: 50%;
    display: grid;
    place-items: center;
    background: conic-gradient(var(--green) var(--progress), var(--border) 0);
    position: relative;
}

.curriculum-ring::after {
    content: "";
    position: absolute;
    inset: 9px;
    border-radius: inherit;
    background: var(--white);
}

.curriculum-ring strong {
    position: relative;
    z-index: 1;
    font-size: 18px;
}

.curriculum-metric {
    padding: 18px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 112px;
}

.curriculum-metric strong {
    font-size: 24px;
    letter-spacing: -0.04em;
}

.curriculum-metric span {
    margin-top: 5px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 700;
}

.curriculum-tabs {
    position: sticky;
    top: 90px;
    z-index: 8;
    display: flex;
    gap: 6px;
    padding: 6px;
    width: fit-content;
    max-width: 100%;
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: var(--white);
    background: color-mix(in srgb, var(--white) 90%, transparent);
    backdrop-filter: blur(16px);
    scrollbar-width: none;
}

.curriculum-tabs::-webkit-scrollbar {
    display: none;
}

.curriculum-tab {
    border: 0;
    border-radius: 13px;
    padding: 10px 15px;
    color: var(--muted);
    background: transparent;
    font-weight: 850;
    white-space: nowrap;
    cursor: pointer;
}

.curriculum-tab.active {
    color: #fff;
    background: linear-gradient(135deg, var(--green), var(--green-dark));
}

.curriculum-panel[hidden] {
    display: none !important;
}

.curriculum-toolbar {
    padding: 14px;
    display: grid;
    grid-template-columns: minmax(220px, 1fr) repeat(5, minmax(140px, auto)) auto;
    gap: 9px;
    align-items: center;
}

.curriculum-toolbar input,
.curriculum-toolbar select {
    min-height: 44px;
    width: 100%;
    border: 1px solid var(--border);
    border-radius: 13px;
    padding: 0 13px;
    background: var(--white);
    color: var(--dark);
    outline: none;
}

.curriculum-toolbar input:focus,
.curriculum-toolbar select:focus {
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(50, 214, 107, 0.13);
}

.curriculum-view-toggle {
    display: inline-flex;
    padding: 4px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--item-bg);
}

.curriculum-view-toggle button {
    width: 38px;
    height: 36px;
    border: 0;
    border-radius: 9px;
    color: var(--muted);
    background: transparent;
    cursor: pointer;
}

.curriculum-view-toggle button.active {
    color: var(--dark);
    background: var(--white);
    box-shadow: var(--shadow-soft);
}

.curriculum-results-meta {
    margin: 6px 2px 0;
    color: var(--muted);
    font-size: 12px;
    font-weight: 750;
}

.curriculum-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.curriculum-grid.list-view {
    grid-template-columns: 1fr;
}

.track-card {
    min-width: 0;
    display: grid;
    gap: 14px;
    padding: 18px;
    border: 1px solid var(--border);
    border-radius: 22px;
    background: var(--card-bg, var(--white));
    box-shadow: var(--shadow-soft);
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.track-card:hover {
    transform: translateY(-3px);
    border-color: rgba(50, 214, 107, 0.45);
    box-shadow: var(--shadow);
}

.track-card.is-locked {
    opacity: 0.72;
}

.track-card-head {
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr) auto;
    align-items: center;
    gap: 11px;
}

.track-mark {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 15px;
    color: #fff;
    background: linear-gradient(135deg, var(--blue), var(--purple));
    font-size: 12px;
    font-weight: 950;
}

.track-card h3 {
    font-size: 17px;
    letter-spacing: -0.035em;
}

.track-card-head small,
.track-meta,
.track-progress-label {
    color: var(--muted);
    font-size: 11px;
    font-weight: 750;
}

.track-status {
    padding: 6px 9px;
    border-radius: 99px;
    color: var(--green-dark);
    background: rgba(50, 214, 107, 0.1);
    font-size: 10px;
    font-weight: 900;
}

.track-status.locked {
    color: var(--muted);
    background: var(--item-bg);
}

.track-description {
    min-height: 59px;
    color: var(--muted);
    font-size: 13px;
    line-height: 1.55;
}

.track-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 12px;
}

.track-progress {
    display: grid;
    gap: 7px;
}

.track-progress-label {
    display: flex;
    justify-content: space-between;
}

.track-progress-bar {
    height: 7px;
    border-radius: 99px;
    overflow: hidden;
    background: var(--border);
}

.track-progress-bar i {
    display: block;
    height: 100%;
    width: var(--value);
    border-radius: inherit;
    background: linear-gradient(90deg, var(--green), var(--blue));
}

.track-actions {
    display: flex;
    gap: 8px;
}

.track-actions .btn {
    flex: 1;
}

.track-actions .btn.disabled,
.syllabus-footer .btn.disabled {
    pointer-events: none;
    opacity: 0.5;
}

.curriculum-grid.list-view .track-card {
    grid-template-columns: minmax(240px, 0.85fr) minmax(240px, 1fr) minmax(180px, 0.7fr) auto;
    align-items: center;
}

.curriculum-grid.list-view .track-description {
    min-height: 0;
}

.curriculum-grid.list-view .track-actions {
    min-width: 205px;
}

.curriculum-empty {
    grid-column: 1 / -1;
    padding: 44px 20px;
    text-align: center;
}

.curriculum-empty h3 {
    margin-bottom: 7px;
}

.curriculum-empty p {
    color: var(--muted);
}

.curriculum-legacy-panel > .section {
    width: 100%;
    margin: 0;
}

.curriculum-legacy-panel {
    display: grid;
    gap: 22px;
}

.curriculum-expandable {
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--card-bg, var(--white));
    box-shadow: var(--shadow-soft);
}

.curriculum-expandable > summary {
    padding: 16px 18px;
    display: flex;
    justify-content: space-between;
    gap: 14px;
    cursor: pointer;
    list-style: none;
}

.curriculum-expandable > summary::-webkit-details-marker {
    display: none;
}

.curriculum-expandable > summary strong,
.curriculum-expandable > summary small {
    display: block;
}

.curriculum-expandable > summary small {
    margin-top: 4px;
    color: var(--muted);
}

.curriculum-expandable[open] > summary {
    border-bottom: 1px solid var(--border);
}

.curriculum-expandable > .section {
    padding: 18px;
}

.curriculum-ai-dock {
    min-height: 610px;
    padding: 20px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(360px, 0.85fr);
    align-items: start;
    gap: 20px;
    border: 1px solid var(--border);
    border-radius: 24px;
    background: var(--card-bg, var(--white));
    box-shadow: var(--shadow-soft);
}

.curriculum-ai-dock p {
    margin-top: 8px;
    color: var(--muted);
    line-height: 1.6;
}

.curriculum-ai-dock .bubub-ai-widget {
    position: relative !important;
    right: auto !important;
    bottom: auto !important;
    z-index: 2 !important;
    min-height: 540px;
    display: flex;
    justify-content: flex-end;
    align-items: flex-end;
}

.curriculum-ai-dock #bububAiPanel {
    right: 0 !important;
    bottom: 76px !important;
    width: min(360px, 100%) !important;
}

.syllabus-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1000;
    border: 0;
    background: rgba(6, 15, 27, 0.58);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.22s ease;
}

.syllabus-backdrop.show {
    opacity: 1;
    pointer-events: auto;
}

.syllabus-drawer {
    position: fixed;
    inset: 0 0 0 auto;
    z-index: 1001;
    width: min(560px, 100%);
    display: flex;
    flex-direction: column;
    background: var(--white);
    border-left: 1px solid var(--border);
    box-shadow: -28px 0 70px rgba(7, 16, 30, 0.24);
    transform: translateX(102%);
    transition: transform 0.26s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.syllabus-drawer.show {
    transform: translateX(0);
}

.syllabus-head {
    padding: 18px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.syllabus-close {
    width: 44px;
    height: 44px;
    flex: 0 0 auto;
    border: 1px solid var(--border);
    border-radius: 13px;
    color: var(--dark);
    background: var(--item-bg);
    cursor: pointer;
}

.syllabus-body {
    min-height: 0;
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    overscroll-behavior: contain;
}

.syllabus-intro {
    display: grid;
    gap: 12px;
    padding: 18px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(50, 214, 107, 0.1), rgba(79, 140, 255, 0.1));
}

.syllabus-intro p {
    color: var(--muted);
    line-height: 1.6;
}

.syllabus-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
}

.syllabus-meta span {
    padding: 6px 9px;
    border-radius: 99px;
    background: var(--white);
    border: 1px solid var(--border);
    font-size: 10px;
    font-weight: 850;
}

.chapter-list {
    display: grid;
    gap: 9px;
    margin-top: 16px;
}

.chapter-item {
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 17px;
}

.chapter-toggle {
    width: 100%;
    border: 0;
    padding: 14px;
    display: flex;
    justify-content: space-between;
    gap: 12px;
    text-align: left;
    color: var(--dark);
    background: var(--item-bg);
    cursor: pointer;
}

.chapter-toggle strong {
    display: block;
    margin-bottom: 3px;
}

.chapter-toggle small {
    color: var(--muted);
}

.chapter-lessons {
    display: none;
    padding: 8px;
}

.chapter-item.open .chapter-lessons {
    display: grid;
}

.lesson-row {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr) auto;
    gap: 9px;
    align-items: center;
    padding: 10px;
    border-radius: 12px;
    color: var(--dark);
    text-decoration: none;
}

.lesson-row:hover {
    background: var(--item-bg);
}

.lesson-state {
    width: 26px;
    height: 26px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: var(--border);
    font-size: 10px;
    font-weight: 900;
}

.lesson-state.mastered,
.lesson-state.completed {
    color: #fff;
    background: var(--green-dark);
}

.lesson-row.locked {
    pointer-events: none;
    opacity: 0.52;
}

.lesson-row small {
    color: var(--muted);
}

.syllabus-footer {
    padding: 14px 20px max(14px, env(safe-area-inset-bottom));
    border-top: 1px solid var(--border);
    background: var(--white);
}

.syllabus-footer .btn {
    width: 100%;
}

body.syllabus-open {
    overflow: hidden;
}

/* GPU-friendly motion system */
.curriculum-dashboard {
    --motion-ease: cubic-bezier(0.16, 1, 0.3, 1);
}

.curriculum-dashboard:not(.motion-ready) .curriculum-overview,
.curriculum-dashboard:not(.motion-ready) .curriculum-tabs,
.curriculum-dashboard:not(.motion-ready) .curriculum-toolbar {
    opacity: 1;
    transform: none;
}

.curriculum-dashboard.motion-ready .curriculum-overview,
.curriculum-dashboard.motion-ready .curriculum-tabs,
.curriculum-dashboard.motion-ready .curriculum-toolbar {
    animation: curriculum-enter 0.7s var(--motion-ease) both;
}

.curriculum-dashboard.motion-ready .curriculum-tabs {
    animation-delay: 70ms;
}

.curriculum-dashboard.motion-ready .curriculum-toolbar {
    animation-delay: 130ms;
}

.track-card {
    position: relative;
    isolation: isolate;
    overflow: hidden;
}

.track-card::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    opacity: 0;
    background: radial-gradient(circle at 20% 0%, rgba(79, 140, 255, 0.16), transparent 46%);
    transform: scale(0.75);
    transition: opacity 0.35s ease, transform 0.55s var(--motion-ease);
    pointer-events: none;
}

.curriculum-dashboard.motion-ready .track-card {
    animation: curriculum-card-enter 0.62s var(--motion-ease) both;
    animation-delay: min(calc(var(--motion-index, 0) * 45ms), 360ms);
}

.track-card:hover {
    transform: translate3d(0, -7px, 0) scale(1.008);
}

.track-card:hover::before {
    opacity: 1;
    transform: scale(1);
}

.track-card:active {
    transform: translate3d(0, -2px, 0) scale(0.992);
    transition-duration: 90ms;
}

.track-mark,
.curriculum-ring,
.curriculum-metric strong {
    transition: transform 0.45s var(--motion-ease), filter 0.35s ease;
}

.track-card:hover .track-mark {
    transform: translate3d(0, -2px, 0) rotate(-4deg) scale(1.08);
    filter: saturate(1.18);
}

.curriculum-summary-card:hover .curriculum-ring {
    transform: rotate(3deg) scale(1.045);
}

.curriculum-metric:hover strong {
    transform: translate3d(0, -2px, 0) scale(1.06);
}

.curriculum-tab,
.curriculum-view-toggle button,
.curriculum-toolbar input,
.curriculum-toolbar select,
.track-actions .btn,
.chapter-toggle,
.lesson-row {
    transition:
        transform 0.22s var(--motion-ease),
        color 0.22s ease,
        background-color 0.22s ease,
        border-color 0.22s ease,
        box-shadow 0.22s ease,
        opacity 0.22s ease;
}

.curriculum-tab:hover,
.curriculum-view-toggle button:hover,
.track-actions .btn:hover {
    transform: translate3d(0, -2px, 0);
}

.curriculum-tab:active,
.curriculum-view-toggle button:active,
.track-actions .btn:active,
.chapter-toggle:active {
    transform: scale(0.97);
}

.curriculum-toolbar input:focus,
.curriculum-toolbar select:focus {
    transform: translate3d(0, -1px, 0);
    box-shadow: 0 0 0 4px rgba(79, 140, 255, 0.12);
}

.track-progress-bar i,
.curriculum-ring,
.curriculum-progress-bar i {
    transition: width 0.7s var(--motion-ease), background 0.3s ease;
}

.curriculum-panel:not([hidden]) {
    animation: curriculum-panel-in 0.48s var(--motion-ease) both;
}

.chapter-item.open .chapter-lessons {
    animation: curriculum-expand 0.38s var(--motion-ease) both;
    transform-origin: top;
}

.syllabus-drawer.show .syllabus-head,
.syllabus-drawer.show .syllabus-intro,
.syllabus-drawer.show .chapter-item,
.syllabus-drawer.show .syllabus-footer {
    animation: curriculum-drawer-item 0.52s var(--motion-ease) both;
}

.syllabus-drawer.show .syllabus-intro {
    animation-delay: 60ms;
}

.syllabus-drawer.show .chapter-item:nth-child(2) {
    animation-delay: 90ms;
}

.syllabus-drawer.show .chapter-item:nth-child(3) {
    animation-delay: 120ms;
}

.syllabus-drawer.show .chapter-item:nth-child(4) {
    animation-delay: 150ms;
}

.syllabus-drawer.show .syllabus-footer {
    animation-delay: 180ms;
}

@keyframes curriculum-enter {
    from { opacity: 0; transform: translate3d(0, 18px, 0); }
    to { opacity: 1; transform: translate3d(0, 0, 0); }
}

@keyframes curriculum-card-enter {
    from { opacity: 0; transform: translate3d(0, 22px, 0) scale(0.975); }
    to { opacity: 1; transform: translate3d(0, 0, 0) scale(1); }
}

@keyframes curriculum-panel-in {
    from { opacity: 0; transform: translate3d(0, 12px, 0); }
    to { opacity: 1; transform: translate3d(0, 0, 0); }
}

@keyframes curriculum-expand {
    from { opacity: 0; transform: translate3d(0, -8px, 0) scaleY(0.96); }
    to { opacity: 1; transform: translate3d(0, 0, 0) scaleY(1); }
}

@keyframes curriculum-drawer-item {
    from { opacity: 0; transform: translate3d(18px, 0, 0); }
    to { opacity: 1; transform: translate3d(0, 0, 0); }
}

/* Legacy sections visibility restored */

@media (max-width: 980px) {
    .curriculum-overview {
        grid-template-columns: repeat(3, 1fr);
    }

    .curriculum-summary-card {
        grid-column: 1 / -1;
    }

    .curriculum-toolbar {
        grid-template-columns: 1fr 1fr;
    }

    .curriculum-toolbar input {
        grid-column: 1 / -1;
    }

    .curriculum-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .curriculum-grid.list-view .track-card {
        grid-template-columns: 1fr;
    }

    .curriculum-ai-dock {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    .curriculum-dashboard {
        width: calc(100% - 20px);
        margin-top: 44px;
        scroll-margin-top: 82px;
    }

    .curriculum-overview {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .curriculum-summary-card {
        grid-column: 1 / -1;
    }

    .curriculum-summary-card {
        padding: 17px;
    }

    .curriculum-ring {
        width: 76px;
        height: 76px;
    }

    .curriculum-metric {
        min-height: 86px;
        padding: 12px 10px;
        text-align: center;
        align-items: center;
    }

    .curriculum-metric strong {
        font-size: 20px;
    }

    .curriculum-metric span {
        font-size: 9px;
        line-height: 1.25;
    }

    .curriculum-tabs {
        top: 66px;
        width: 100%;
    }

    .curriculum-tab {
        flex: 1 0 auto;
        padding: 9px 12px;
    }

    .curriculum-toolbar {
        grid-template-columns: 1fr;
    }

    .curriculum-toolbar input {
        grid-column: auto;
    }

    .curriculum-view-toggle {
        justify-self: stretch;
    }

    .curriculum-view-toggle button {
        flex: 1;
    }

    .curriculum-grid,
    .curriculum-grid.list-view {
        grid-template-columns: 1fr;
    }

    .track-card,
    .curriculum-grid.list-view .track-card {
        padding: 15px;
        grid-template-columns: 1fr;
    }

    .track-description {
        min-height: 0;
    }

    .track-actions {
        min-width: 0 !important;
    }

    .syllabus-drawer {
        top: max(8px, env(safe-area-inset-top));
        width: 100%;
        border-left: 0;
        border-radius: 24px 24px 0 0;
    }

    #rpgFloatingHud,
    #rpgProfilPanel {
        display: none !important;
    }

    .curriculum-ai-dock {
        min-height: 590px;
        padding: 16px;
    }

    .curriculum-ai-dock .bubub-ai-widget {
        min-height: 510px;
    }

    .curriculum-ai-dock #bububAiPanel {
        left: 0 !important;
        right: auto !important;
        width: 100% !important;
        max-height: 470px;
    }

    .lesson-row {
        grid-template-columns: 28px minmax(0, 1fr);
    }

    .lesson-row > small:last-child {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .curriculum-dashboard *,
    .curriculum-dashboard *::before,
    .curriculum-dashboard *::after,
    .syllabus-drawer *,
    .syllabus-backdrop {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ==========================================================================
   20 NEW CURRICULUM UPDATES STYLING (BASIC & PRO)
   ========================================================================== */

/* Focus Mode Overlay Style */
body.focus-mode-active {
    background: #090a0f !important;
}
body.focus-mode-active .navbar,
body.focus-mode-active footer,
body.focus-mode-active .curriculum-overview,
body.focus-mode-active .curriculum-tabs,
body.focus-mode-active .curriculum-toolbar,
body.focus-mode-active .curriculum-results-meta,
body.focus-mode-active .curriculum-grid,
body.focus-mode-active .curriculum-legacy-panel > *:not(.focus-mode-content) {
    opacity: 0.08 !important;
    pointer-events: none !important;
    transition: opacity 0.5s ease;
}

/* Fast Resume Floating Button */
.fast-resume-btn {
    position: fixed;
    bottom: 80px;
    left: 20px;
    z-index: 99;
    background: linear-gradient(135deg, var(--green), var(--green-dark));
    color: white;
    border: none;
    border-radius: 999px;
    padding: 12px 18px;
    font-weight: 800;
    font-size: 12px;
    box-shadow: 0 8px 20px rgba(50, 214, 107, 0.35);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    transform: translateY(100px);
    opacity: 0;
}
.fast-resume-btn.show {
    transform: translateY(0);
    opacity: 1;
}
.fast-resume-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(50, 214, 107, 0.5);
}

/* Bookmark Star styling on Track Cards */
.bookmark-track-btn {
    background: transparent;
    border: none;
    font-size: 19px;
    color: #cbd5e1;
    cursor: pointer;
    padding: 4px;
    transition: transform 0.2s, color 0.2s;
}
.bookmark-track-btn.is-bookmarked {
    color: var(--yellow);
    transform: scale(1.15) rotate(15deg);
}

/* Pomodoro Timer widget style */
.pomodoro-widget {
    background: var(--item-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 16px;
    text-align: center;
    margin-top: 14px;
}
.pomodoro-timer-display {
    font-size: 38px;
    font-weight: 900;
    letter-spacing: -0.05em;
    color: var(--dark);
    margin: 8px 0;
}
.pomodoro-controls {
    display: flex;
    justify-content: center;
    gap: 8px;
}
.pomodoro-btn {
    border: none;
    border-radius: 10px;
    padding: 8px 12px;
    font-size: 11px;
    font-weight: 800;
    cursor: pointer;
    background: var(--white);
    color: var(--dark);
    border: 1px solid var(--border);
    transition: all 0.2s;
}
.pomodoro-btn.start-btn {
    background: var(--green);
    color: white;
    border-color: transparent;
}
.pomodoro-btn:hover {
    transform: translateY(-1px);
}

/* SVG Radar Chart styles */
.radar-chart-container {
    background: var(--item-bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 14px;
    min-height: 200px;
}
.radar-grid-line {
    fill: none;
    stroke: var(--border);
    stroke-width: 1;
}
.radar-axis-line {
    fill: none;
    stroke: var(--border);
    stroke-width: 1.5;
    stroke-dasharray: 2 2;
}
.radar-poly-area {
    fill: rgba(79, 140, 255, 0.25);
    stroke: var(--blue);
    stroke-width: 2;
}
body.pro-gold-theme .radar-poly-area {
    fill: rgba(243, 221, 160, 0.25);
    stroke: var(--pro-gold);
}
.radar-axis-label {
    fill: var(--muted);
    font-size: 9px;
    font-weight: 800;
    text-transform: uppercase;
}

/* BUBUB assistant entry styles */
.ai-coach-sidebar {
    position: fixed;
    top: 90px;
    right: -340px;
    width: 320px;
    height: calc(100vh - 110px);
    background: var(--white);
    border-left: 1px solid var(--border);
    box-shadow: var(--shadow);
    border-radius: 24px 0 0 24px;
    z-index: 110;
    display: flex;
    flex-direction: column;
    transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
}
.ai-coach-sidebar.open {
    right: 0;
}
.ai-coach-header {
    padding: 16px;
    background: linear-gradient(135deg, rgba(79, 140, 255, 0.1), rgba(139, 92, 246, 0.1));
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.ai-coach-body {
    flex: 1;
    overflow-y: auto;
    padding: 14px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.ai-coach-bubble {
    padding: 10px 12px;
    border-radius: 14px;
    font-size: 12px;
    line-height: 1.5;
    max-width: 85%;
    font-weight: 600;
}
.ai-coach-bubble.coach {
    background: var(--item-bg);
    color: var(--dark);
    align-self: flex-start;
}
.ai-coach-bubble.user {
    background: var(--blue);
    color: white;
    align-self: flex-end;
}
.ai-coach-input-area {
    padding: 12px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 6px;
}
.ai-coach-input-area input {
    flex: 1;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 8px 12px;
    font-size: 12px;
    outline: none;
    background: var(--white);
    color: var(--dark);
}
.ai-coach-input-area button {
    background: var(--blue);
    color: white;
    border: none;
    border-radius: 10px;
    width: 34px;
    height: 34px;
    cursor: pointer;
}

/* Code sandbox style */
.code-sandbox-box {
    background: var(--dark-panel-bg, #0f172a);
    border-radius: 20px;
    padding: 16px;
    color: white;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 14px;
}
.code-sandbox-box textarea {
    width: 100%;
    min-height: 120px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 12px;
    padding: 12px;
    font-family: monospace;
    font-size: 13px;
    color: #e2e8f0;
    outline: none;
    resize: vertical;
}
.code-sandbox-output {
    background: rgba(0,0,0,0.3);
    border-radius: 12px;
    padding: 10px;
    font-family: monospace;
    font-size: 12px;
    min-height: 50px;
    color: #38bdf8;
    overflow-y: auto;
    max-height: 100px;
    white-space: pre-wrap;
}

/* Flashcards Swipe Widget styling */
.flashcard-flip-container {
    perspective: 1000px;
    width: 100%;
    min-height: 170px;
    cursor: pointer;
    margin-top: 14px;
}
.flashcard-inner-card {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}
.flashcard-flip-container.flipped .flashcard-inner-card {
    transform: rotateY(180deg);
}
.flashcard-front, .flashcard-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    border-radius: 20px;
    border: 1px solid var(--border);
    padding: 24px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: var(--item-bg);
}
.flashcard-back {
    transform: rotateY(180deg);
    background: var(--white);
}
.flashcard-front strong {
    font-size: 18px;
    color: var(--dark);
}
.flashcard-back p {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.5;
}

/* Auto Suggest Dropdown styling under search */
.search-auto-suggest-box {
    position: absolute;
    top: 105%;
    left: 14px;
    width: calc(100% - 28px);
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: var(--shadow);
    z-index: 15;
    max-height: 240px;
    overflow-y: auto;
    display: none;
    flex-direction: column;
    padding: 6px;
}
.search-suggest-item {
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 700;
    color: var(--dark);
    cursor: pointer;
    transition: background 0.2s;
}
.search-suggest-item:hover {
    background: var(--item-bg);
    color: var(--blue);
}

/* Collaborative simulated live user pill */
.live-room-pill {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.2);
    border-radius: 999px;
    padding: 6px 12px;
    font-size: 11px;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.live-room-dot {
    width: 6px;
    height: 6px;
    background: #ef4444;
    border-radius: 50%;
    animation: livePulse 1.5s infinite;
}
@keyframes livePulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.4); opacity: 0.4; }
}

/* Extra controls in dock or panels */
.pro-premium-badge-gold {
    background: linear-gradient(135deg, var(--pro-gold) 0%, var(--pro-gold-bright) 100%);
    color: var(--pro-obsidian);
    border-radius: 4px;
    padding: 2px 5px;
    font-size: 9px;
    font-weight: 900;
    text-transform: uppercase;
}

.achievement-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 12px;
}
.achievement-badge-card {
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 14px;
    text-align: center;
    background: var(--item-bg);
    opacity: 0.45;
    transition: all 0.3s;
}
.achievement-badge-card.unlocked {
    opacity: 1;
    background: var(--white);
    border-color: var(--green);
    box-shadow: var(--shadow-soft);
}
.achievement-badge-card i {
    font-size: 26px;
    margin-bottom: 8px;
    color: var(--muted);
}
.achievement-badge-card.unlocked i {
    color: var(--yellow);
    filter: drop-shadow(0 0 4px rgba(255, 209, 102, 0.4));
}
.achievement-badge-card strong {
    display: block;
    font-size: 11px;
}
.achievement-badge-card span {
    font-size: 9px;
    color: var(--muted);
}

.achievement-badge-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-soft);
}