/* === App Wrapper (viewport minus navbar) === */
.app-wrapper {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 56px);
    overflow: hidden;
}

/* === 3-Pane Layout === */
.app-layout-3 {
    display: grid;
    grid-template-columns: 240px 1fr 320px;
    grid-template-rows: 1fr;
    flex: 1;
    min-height: 0;
    gap: 0;
}

/* Left Navigation Pane */
.left-nav {
    background: #f8f9fa;
    border-right: 1px solid #dee2e6;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    transition: width 0.3s, min-width 0.3s;
}

.left-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #dee2e6;
}

.left-nav-header h6 {
    margin: 0;
    font-size: 0.85rem;
}

.left-nav.collapsed {
    width: 48px;
    min-width: 48px;
    overflow: hidden;
}

.left-nav.collapsed .left-nav-body,
.left-nav.collapsed .left-nav-header h6 {
    display: none;
}

/* Center Pane */
.center-pane {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
}

.app-layout-3 .chat-panel {
    border-left: none;
    position: static;
    min-height: 0;
    flex: 1;
}

/* Right Context Pane */
.right-pane {
    background: #fafbfc;
    border-left: 1px solid #dee2e6;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    transition: width 0.3s, min-width 0.3s;
}

.right-pane-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid #dee2e6;
    background: #f0f2f5;
}

.right-pane-header h6 {
    margin: 0;
    font-size: 0.85rem;
    color: #495057;
}

.right-pane-body {
    padding: 1rem;
    flex: 1;
    overflow-y: auto;
}

.right-pane.collapsed {
    width: 48px;
    min-width: 48px;
    overflow: hidden;
}

.right-pane.collapsed .right-pane-body,
.right-pane.collapsed .right-pane-header h6 {
    display: none;
}

/* Pane toggle buttons */
.pane-toggle {
    border: none;
    background: none;
    color: #6c757d;
    font-size: 1rem;
    padding: 0.15rem 0.4rem;
    cursor: pointer;
    line-height: 1;
}

.pane-toggle:hover {
    color: #212529;
}

/* === Vertical Phase Navigation === */
.phase-nav {
    padding: 0.75rem 0;
}

.phase-nav-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.5rem 1rem;
    text-decoration: none;
    color: #6c757d;
    font-size: 0.82rem;
    border-left: 3px solid transparent;
    transition: background 0.15s;
}

.phase-nav-item:hover {
    background: #e9ecef;
}

.phase-nav-item.current {
    color: #0d6efd;
    font-weight: 600;
    border-left-color: #0d6efd;
    background: #e7f1ff;
}

.phase-nav-item.completed {
    color: #198754;
}

.phase-nav-item.completed .phase-nav-dot {
    background: #198754;
    color: #fff;
}

.phase-nav-item.future {
    color: #adb5bd;
    pointer-events: none;
}

.phase-nav-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 700;
    background: #dee2e6;
    color: #495057;
    flex-shrink: 0;
}

.phase-nav-item.current .phase-nav-dot {
    background: #0d6efd;
    color: #fff;
}

/* === Chat Panel === */
.chat-panel {
    display: flex;
    flex-direction: column;
    border-left: 1px solid #dee2e6;
    background: #fff;
}

.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: #0d6efd;
    color: #fff;
    font-weight: 600;
    flex-shrink: 0;
}

.chat-messages {
    flex: 1;
    overflow-y: scroll;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* Chat bubbles */
.chat-bubble {
    max-width: 90%;
    padding: 0.6rem 0.9rem;
    border-radius: 12px;
    font-size: 0.9rem;
    line-height: 1.4;
    word-wrap: break-word;
    white-space: pre-wrap;
}

.chat-bubble.bot {
    align-self: flex-start;
    background: #e7f1ff;
    color: #1a1a2e;
    border-bottom-left-radius: 4px;
}

.chat-bubble.user {
    align-self: flex-end;
    background: #0d6efd;
    color: #fff;
    border-bottom-right-radius: 4px;
}

.chat-bubble strong {
    font-weight: 700;
}

/* Input area */
.chat-input-area {
    padding: 0.75rem;
    border-top: 1px solid #dee2e6;
    background: #f8f9fa;
    flex-shrink: 0;
}

.chat-input-area textarea {
    resize: none;
    font-size: 0.9rem;
    border-radius: 8px;
}

.chat-input-area .btn-primary {
    border-radius: 8px;
    align-self: flex-end;
}

/* Typing indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 0.6rem 0.9rem;
    align-self: flex-start;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: #adb5bd;
    border-radius: 50%;
    animation: typing-bounce 1.4s ease-in-out infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing-bounce {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-6px); }
}

/* === Ideation Progress Sidebar === */
.ideation-progress .dim-card {
    padding: 0.6rem 0.75rem;
    border-radius: 8px;
    border: 1px solid #dee2e6;
    margin-bottom: 0.5rem;
    background: #fff;
    transition: border-color 0.3s, background 0.3s;
}

.ideation-progress .dim-card.completed {
    border-color: #198754;
    background: #f0fdf4;
}

.ideation-progress .dim-label {
    font-weight: 600;
    font-size: 0.85rem;
    color: #1a1a2e;
}

.ideation-progress .dim-card.completed .dim-label {
    color: #198754;
}

.ideation-progress .dim-summary {
    font-size: 0.78rem;
    color: #6c757d;
    margin-top: 0.15rem;
    line-height: 1.3;
}

.ideation-progress .idea-reference {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 0.6rem 0.75rem;
    border: 1px solid #e9ecef;
}

/* === Option Buttons === */
.chat-options {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 0.5rem 0;
    align-self: flex-start;
    max-width: 95%;
}

.chat-option-btn {
    display: block;
    width: 100%;
    text-align: left;
    padding: 0.5rem 0.9rem;
    border: 1px solid #0d6efd;
    border-radius: 20px;
    background: #fff;
    color: #0d6efd;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background 0.15s, color 0.15s, transform 0.1s;
}

.chat-option-btn:hover {
    background: #0d6efd;
    color: #fff;
    transform: translateX(3px);
}

.chat-option-check {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0.4rem 0.75rem;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: border-color 0.15s, background 0.15s;
}

.chat-option-check:hover {
    border-color: #0d6efd;
    background: #f0f6ff;
}

.chat-option-check input[type="checkbox"] {
    accent-color: #0d6efd;
    width: 16px;
    height: 16px;
}

.chat-option-btn-row {
    display: flex;
    gap: 8px;
    margin-top: 6px;
    align-self: flex-end;
}

.chat-option-confirm {
    /* No margin-top needed — handled by btn-row */
}

.chat-option-lock {
    margin-top: 6px;
    align-self: flex-end;
}

/* Lock hint banner */
.chat-lock-hint {
    align-self: flex-start;
    max-width: 90%;
    padding: 0.5rem 0.75rem;
    margin-top: 0.25rem;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: 8px;
    font-size: 0.82rem;
    color: #166534;
}

.lock-hint-btn {
    background: none;
    border: none;
    color: #15803d;
    font-weight: 600;
    text-decoration: underline;
    cursor: pointer;
    padding: 0;
    font-size: inherit;
}

.lock-hint-btn:hover {
    color: #166534;
}

/* === Extracted Features (right pane) === */
.feature-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    border-radius: 10px;
    background: #0d6efd;
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
}

.extracted-feature-card {
    padding: 0.5rem 0.65rem;
    border-radius: 6px;
    border: 1px solid #dee2e6;
    margin-bottom: 0.4rem;
    background: #fff;
}

.extracted-feature-card .feature-name {
    font-weight: 600;
    font-size: 0.82rem;
    color: #1a1a2e;
}

.extracted-feature-card .feature-desc {
    font-size: 0.75rem;
    color: #6c757d;
    margin-top: 0.1rem;
    line-height: 1.3;
}

/* === Idea Intake (center pane form) === */
.idea-intake-panel {
    padding: 1.5rem;
    overflow-y: auto;
    flex: 1;
}
.idea-intake-header {
    margin-bottom: 1.5rem;
}
.idea-intake-header h5 {
    margin-bottom: 0.5rem;
}
.idea-intake-form textarea {
    font-size: 0.95rem;
}

/* === Feature Catalog (center pane form) === */
.feature-catalog-panel {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: #fff;
}

.feature-catalog-header {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid #dee2e6;
    background: #f8f9fa;
    flex-shrink: 0;
}

.feature-catalog-header h5 {
    margin: 0 0 0.25rem 0;
    font-size: 1rem;
}

.feature-catalog-panel form {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}

.feature-catalog-body {
    flex: 1;
    overflow-y: scroll;
    padding: 1rem 1.25rem;
    min-height: 0;
}

.feature-category {
    margin-bottom: 1.25rem;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.4rem;
}

.feature-category-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: #0d6efd;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    margin: 0;
}

/* Layer tabs */
.feature-layer-tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid #dee2e6;
    margin: 0 1rem;
    flex-shrink: 0;
}

.feature-layer-tab {
    padding: 0.5rem 1.25rem;
    border: none;
    background: none;
    font-size: 0.85rem;
    font-weight: 600;
    color: #6c757d;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: color 0.15s, border-color 0.15s;
}

.feature-layer-tab:hover {
    color: #0d6efd;
}

.feature-layer-tab.active {
    color: #0d6efd;
    border-bottom-color: #0d6efd;
}

.layer-tab-count {
    display: inline-block;
    min-width: 20px;
    padding: 0 5px;
    font-size: 0.7rem;
    font-weight: 700;
    line-height: 18px;
    text-align: center;
    background: #e7f1ff;
    color: #0d6efd;
    border-radius: 9px;
    margin-left: 4px;
}

.feature-layer-tab.active .layer-tab-count {
    background: #0d6efd;
    color: #fff;
}

/* Category header with title + toggle buttons */
.feature-category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    grid-column: 1 / -1;
    padding-bottom: 0.25rem;
    margin-bottom: 0.5rem;
    border-bottom: 2px solid #e7f1ff;
}

.category-toggle-btns {
    display: flex;
    gap: 4px;
}

.btn-xs {
    padding: 0.1rem 0.4rem;
    font-size: 0.7rem;
    line-height: 1.4;
    border-radius: 3px;
}

/* Exclusion warning */
.exclusion-warning {
    border-left: 3px solid #ffc107;
}

.feature-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 0.5rem 0.75rem;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    cursor: pointer;
    margin-bottom: 0.4rem;
    transition: border-color 0.15s, background 0.15s;
}

.feature-checkbox:hover {
    border-color: #0d6efd;
    background: #f0f6ff;
}

.feature-checkbox input[type="checkbox"] {
    accent-color: #0d6efd;
    width: 18px;
    height: 18px;
    margin-top: 2px;
    flex-shrink: 0;
}

.feature-checkbox-info {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.feature-checkbox-name {
    font-weight: 600;
    font-size: 0.85rem;
    color: #1a1a2e;
}

.feature-checkbox-desc {
    font-size: 0.75rem;
    color: #6c757d;
    line-height: 1.3;
}

.feature-catalog-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1.25rem;
    border-top: 1px solid #dee2e6;
    background: #f8f9fa;
    flex-shrink: 0;
}

.feature-catalog-actions-right {
    display: flex;
    gap: 8px;
}

/* === Profile Review (radio options) === */
.profile-radio-option {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 0.5rem 0.75rem;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    cursor: pointer;
    margin-bottom: 0.4rem;
    transition: border-color 0.15s, background 0.15s;
}

.profile-radio-option:hover {
    border-color: #0d6efd;
    background: #f0f6ff;
}

.profile-radio-option input[type="radio"] {
    accent-color: #0d6efd;
    width: 18px;
    height: 18px;
    margin-top: 2px;
    flex-shrink: 0;
}

/* === Responsive === */
@media (min-width: 1400px) {
    .feature-category {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .feature-category {
        grid-template-columns: 1fr;
    }

    .app-layout-3 {
        grid-template-columns: 1fr;
    }

    .left-nav,
    .right-pane {
        display: none;
    }

    .chat-panel {
        position: static;
        height: auto;
        flex: 1;
    }
}

@media (max-width: 768px) {
    .chat-panel {
        position: fixed;
        right: 0;
        top: 0;
        bottom: 0;
        width: 100%;
        height: 100vh;
        z-index: 1050;
        transform: translateX(100%);
        transition: transform 0.3s ease;
    }

    .chat-panel.mobile-open {
        transform: translateX(0);
    }
}

/* === Auto-Build Progress === */
.auto-build-panel .progress {
    max-width: 500px;
    margin: 0 auto;
}

.auto-build-panel #chapter-list .badge {
    min-width: 70px;
    text-align: center;
}

.auto-build-panel .score-info {
    white-space: nowrap;
    font-size: 0.75rem;
}

#doc-score-summary {
    padding: 0.75rem;
    background: #f8f9fa;
    border-radius: 8px;
    border: 1px solid #dee2e6;
}

#doc-score-summary strong {
    font-size: 1rem;
    color: #1a1a2e;
}

/* Depth selector card on outline approval */
.depth-selector .form-check-inline {
    margin-right: 0;
}

.depth-selector .form-check-label {
    font-size: 0.85rem;
}

/* === Loading spinner for form submit buttons === */
.btn .spinner-border-sm {
    width: 1rem;
    height: 1rem;
}

/* === Build metrics (auto-build page) === */
.metrics-info {
    white-space: nowrap;
    color: #6c757d;
    font-size: 0.75rem;
}

/* === Intelligence Goals (feature discovery page) === */
.intelligence-goals-section {
    border-top: 1px solid #dee2e6;
    padding: 1rem 1.25rem;
    margin-top: 0.5rem;
}

.intelligence-goals-header h6 {
    color: #0d6efd;
    margin-bottom: 0.25rem;
}

.intelligence-goal-item {
    margin-bottom: 0.5rem;
}