.topics-stage {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
    align-items: start;
    transition: grid-template-columns 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

.topics-page.has-selection .topics-stage {
    grid-template-columns: minmax(280px, 380px) minmax(0, 1fr);
}

.topics-focus {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 1.5rem;
    transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

.topics-page.has-selection .topics-focus {
    transform: translateX(-0.35rem);
}

.topics-card-body {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.topics-card-section {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.topics-card-section + .topics-card-section {
    gap: 0.5rem;
}

.topics-card-divider {
    height: 1px;
    background: rgba(148, 163, 184, 0.35);
    border-radius: 999px;
}

.panel-kicker.sub {
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    color: var(--text-secondary);
}

.review-stack-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}

.review-tip {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.review-list.compact .review-card {
    padding: 0.75rem;
}

.review-list.compact .review-card strong {
    font-size: 0.9rem;
}

.new-topic-actions {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 0.75rem;
}

.topic-session {
    background: var(--bg-primary);
    border-radius: 20px;
    border: 1px solid transparent;
    padding: 0;
    box-shadow: none;
    overflow: hidden;
    max-height: 0;
    opacity: 0;
    pointer-events: none;
    transform: translateY(12px);
    transition: padding 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, opacity 0.3s ease, transform 0.4s ease, max-height 0.6s ease;
}

.topic-session.active {
    padding: 2rem;
    border: 1px solid rgba(148, 163, 184, 0.3);
    box-shadow: 0 10px 32px rgba(15, 23, 42, 0.08);
    max-height: 9999px;
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
    overflow: visible;
}

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

.session-meta {
    color: var(--text-secondary);
    margin-top: 0.35rem;
}

.session-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.history-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.4rem;
    border-radius: 999px;
    border: 1.5px solid rgba(59, 130, 246, 0.45);
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(99, 102, 241, 0.15));
    color: var(--text-primary);
    font-weight: 600;
    transition: all 0.25s ease;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.08);
}

.history-toggle .history-label {
    white-space: nowrap;
}

.history-toggle .chevron {
    width: 0.65rem;
    height: 0.65rem;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
    transition: transform 0.25s ease;
}

.history-toggle:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    box-shadow: none;
}

.history-toggle:not(:disabled):hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.12);
}

.history-toggle.active {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(59, 130, 246, 0.15));
    border-color: rgba(16, 185, 129, 0.6);
}

.history-toggle.active .chevron {
    transform: rotate(-135deg);
}

.session-panels {
    position: relative;
    display: block;
}

.session-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.session-panel--history {
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 1.5rem;
    background: var(--bg-secondary);
    display: none;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.session-quick-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.secondary-btn {
    background: rgba(59, 130, 246, 0.12);
    border: 1px solid rgba(59, 130, 246, 0.4);
    color: var(--text-primary);
    font-weight: 500;
    border-radius: 50px;
    padding: 0.5rem 1.25rem;
    transition: all 0.2s ease;
}

.secondary-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.secondary-btn:not(:disabled):hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.12);
}

.suggestion-card {
    border: 1px solid rgba(59, 130, 246, 0.25);
    border-radius: 18px;
    padding: 1.25rem 1.5rem;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(16, 185, 129, 0.08));
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.12);
}

.suggestion-card.hidden {
    display: none;
}

.suggestion-card-header {
    margin-bottom: 1rem;
}

.suggestion-kicker {
    font-size: 0.8rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 0.35rem;
}

.suggestion-reason {
    color: var(--text-secondary);
    margin-top: 0.35rem;
}

.suggestion-task-list {
    list-style: none;
    padding: 0;
    margin: 0 0 1rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.suggestion-task-list li {
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.65);
    padding: 0.75rem 1rem;
    border: 1px solid rgba(148, 163, 184, 0.35);
}

.suggestion-task-list h5 {
    margin: 0 0 0.35rem 0;
    font-size: 0.95rem;
}

.suggestion-task-list p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.suggestion-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.form-helper {
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.topic-session.show-history .session-panel--coach {
    display: none;
}

.topic-session.show-history .session-panel--history {
    display: flex;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

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

.session-card {
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 1rem;
    background: var(--bg-primary);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
}

.session-card h4 {
    margin: 0;
    font-size: 1rem;
}

.session-card-meta {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.session-card-actions {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
}

.session-card-actions .primary-btn,
.session-card-actions .ghost-btn {
    flex: 1;
    font-size: 0.9rem;
    padding: 0.5rem 0.75rem;
}

.session-card-actions .danger-btn {
    flex: 0 0 auto;
    min-width: auto;
}

.ghost-btn--small {
    padding: 0.45rem 0.85rem;
    font-size: 0.85rem;
}

@media (max-width: 960px) {
    .topics-page.has-selection .topics-stage {
        grid-template-columns: 1fr;
    }

    .topics-page.has-selection .topics-focus {
        transform: none;
    }

    .topic-session.active {
        padding: 1.5rem;
    }
}

.panel {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.75rem;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

.panel-highlight {
    border-color: rgba(0, 123, 255, 0.4);
    background: linear-gradient(145deg, rgba(0, 123, 255, 0.08), transparent);
}

.panel-accent {
    background: linear-gradient(145deg, rgba(16, 185, 129, 0.1), rgba(14, 116, 144, 0.05));
    border-color: rgba(16, 185, 129, 0.5);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.panel-kicker {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.panel-actions input {
    width: 170px;
    padding: 0.6rem 0.85rem;
    border-radius: 10px;
    border: 1.5px solid var(--border-color);
    background: var(--input-bg);
    color: var(--text-primary);
}

.panel-description {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.panel-tip {
    margin-top: 0.75rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.pill-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.suggestion-pill {
    border: 1px solid rgba(0, 123, 255, 0.3);
    border-radius: 999px;
    padding: 0.35rem 0.95rem;
    font-size: 0.9rem;
    cursor: pointer;
    background: rgba(0, 123, 255, 0.08);
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.pill-meta {
    font-size: 0.75rem;
    margin-left: 0.35rem;
    opacity: 0.8;
}

.suggestion-pill:hover,
.suggestion-pill.active {
    background: var(--primary-color);
    color: #fff;
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.review-list {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.review-card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.85rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    background: var(--bg-secondary);
}

.review-card strong {
    font-size: 0.95rem;
    color: var(--text-primary);
}

.review-meta {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.search-results {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.search-result-card {
    border: 1px dashed var(--border-color);
    border-radius: 10px;
    padding: 0.75rem;
    cursor: pointer;
    transition: border-color 0.2s ease;
}

.search-result-card:hover {
    border-color: var(--primary-color);
}

.topics-trainer {
    background: var(--bg-primary);
    border-radius: 20px;
    padding: 2rem;
    border: 1px solid rgba(148, 163, 184, 0.3);
    box-shadow: 0 10px 32px rgba(15, 23, 42, 0.08);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.trainer-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
}

.trainer-meta {
    color: var(--text-secondary);
    margin-top: 0.4rem;
}

.coach-output {
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    min-height: 220px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), transparent);
}

.coach-section + .coach-section {
    margin-top: 1.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(148, 163, 184, 0.4);
}

.coach-section h4 {
    margin-bottom: 0.4rem;
}

.coach-meta {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin: 0.4rem 0;
}

.coach-list {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    padding-left: 1.25rem;
}

.trainer-timeline {
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.25rem;
    background: var(--bg-secondary);
}

.timeline-header {
    display: flex;
    flex-direction: column;
    margin-bottom: 1rem;
}

.timeline-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.timeline-list {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.timeline-entry {
    background: var(--bg-primary);
    border-radius: 14px;
    border: 1px solid var(--border-color);
    padding: 1rem;
}

.timeline-entry-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.timeline-entry p {
    margin: 0.35rem 0;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.5rem;
}

.tag {
    font-size: 0.75rem;
    border-radius: 999px;
    padding: 0.15rem 0.65rem;
    border: 1px solid rgba(148, 163, 184, 0.6);
    color: var(--text-secondary);
}

.trainer-form {
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-row {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.form-row select {
    flex: 1;
    padding: 0.65rem 0.85rem;
    border-radius: 10px;
    border: 1.5px solid var(--border-color);
    background: var(--input-bg);
    color: var(--text-primary);
}

.trainer-form textarea {
    border-radius: 12px;
    border: 1.5px solid var(--border-color);
    padding: 0.9rem;
    resize: vertical;
    min-height: 120px;
}

.form-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.helper-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.primary-btn {
    border: none;
    background: linear-gradient(120deg, #2563eb, #4338ca);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
    transition: transform 0.2s ease;
}

.primary-btn:hover {
    transform: translateY(-1px);
}

.ghost-btn {
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-primary);
    padding: 0.6rem 1rem;
    border-radius: 10px;
    cursor: pointer;
}

.danger-btn {
    color: var(--error-color);
    border-color: var(--error-color);
}

.danger-btn:hover {
    background: var(--error-color);
    color: #fff;
    border-color: var(--error-color);
}

.primary-btn .loading-label {
    display: none;
}

.primary-btn.loading .default-label {
    display: none;
}

.primary-btn.loading .loading-label {
    display: inline;
}

.empty-state {
    color: var(--text-secondary);
}

.empty-state.small {
    font-size: 0.9rem;
}

.modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 51;
    pointer-events: none;
}

.modal.hidden {
    display: none;
}

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    z-index: 50;
    pointer-events: auto;
}

.modal-backdrop.hidden {
    display: none;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: 18px;
    padding: 2rem;
    width: min(520px, 90vw);
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(15, 23, 42, 0.35);
    border: 1px solid rgba(148, 163, 184, 0.3);
    position: relative;
    pointer-events: auto;
}

.modal-content form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 1.2rem;
}

.modal-content input,
.modal-content textarea,
.modal-content select {
    width: 100%;
    padding: 0.7rem 0.9rem;
    border-radius: 10px;
    border: 1.5px solid var(--border-color);
    background: var(--input-bg);
    color: var(--text-primary);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    border: none;
    background: transparent;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
}

.full-width {
    width: 100%;
    text-align: center;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

@media (max-width: 600px) {
    .form-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .session-header {
        flex-direction: column;
    }

    .panel-actions input {
        width: 100%;
    }

    .session-actions {
        width: 100%;
        justify-content: flex-start;
    }
}

/* Session Loading Overlay - Shared with topic-session */
.session-loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.4s ease, visibility 0.4s ease;
    visibility: visible;
}

.session-loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.session-loading-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    text-align: center;
}

.tale-logo-animated {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tale-logo-text {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--text-primary);
    position: relative;
    z-index: 2;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: taleLogoGlow 2s ease-in-out infinite;
}

@keyframes taleLogoGlow {
    0%, 100% {
        filter: brightness(1);
        transform: scale(1);
    }
    50% {
        filter: brightness(1.2);
        transform: scale(1.02);
    }
}

.tale-logo-pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15) 0%, transparent 70%);
    animation: talePulse 2s ease-in-out infinite;
    z-index: 1;
}

@keyframes talePulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.6;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.3);
        opacity: 0.3;
    }
}

.session-loading-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin: 0;
    letter-spacing: 0.02em;
}

.session-loading-dots {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    justify-content: center;
}

.session-loading-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-secondary);
    display: block;
    animation: loadingDot 1.4s ease-in-out infinite;
}

.session-loading-dots span:nth-child(1) {
    animation-delay: 0s;
}

.session-loading-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.session-loading-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes loadingDot {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.5;
    }
    30% {
        transform: translateY(-12px);
        opacity: 1;
    }
}

@media (max-width: 768px) {
    .tale-logo-text {
        font-size: clamp(2.5rem, 10vw, 4rem);
    }

    .tale-logo-pulse {
        width: 150px;
        height: 150px;
    }

    .session-loading-text {
        font-size: 1rem;
    }
}