/* ============================================
   SIMULATION STORY PAGE
   ============================================ */

@layer components {
    .simulation-story-page {
        position: relative;
        padding-block: var(--space-xl);
        overflow: hidden;

        [data-md] {
            p { margin: 0 0 0.35em; }
            p:last-child { margin-bottom: 0; }
            ul { margin: 0.35em 0; padding-left: 1.4em; }
            li { margin-bottom: 0.2em; line-height: 1.65; }
            code {
                font-size: 0.85em;
                padding: 0.1em 0.35em;
                border-radius: 4px;
                background: light-dark(oklch(0.95 0 0), oklch(0.25 0 0));
            }
        }

        /* === STAGE 2 TABS === */
        .stage2-tabs {
            display: inline-flex;
            border-radius: 100px;
            overflow: hidden;
            padding: var(--space-3xs);
            align-self: center;
        }

        .stage2-tab {
            padding: var(--space-xs) var(--space-xl);
            border: none;
            background: transparent;
            cursor: pointer;
            font-size: var(--fs-small);
            border-radius: 100px;
            transition: all 0.2s ease-out;
            font-weight: var(--fw-medium);
        }

        /* === TAB PANELS === */
        .tab-panel {
            display: none;
            flex-direction: column;
            gap: var(--space-lg);

            &.active {
                display: flex;
            }
        }

        /* === MAIN CONTENT === */
        .story-content {
            flex: 1;
            min-inline-size: 300px;
            display: flex;
            flex-direction: column;
            gap: var(--space-lg);
        }

        .card {
            padding: var(--space-lg);
            border-radius: 12px;
        }

        .story-meta {
            display: flex;
            justify-content: space-between;
            align-items: center;

            .difficulty {
                font-size: var(--fs-small);
            }

            .status-badge {
                padding: var(--space-3xs) var(--space-sm);
                border-radius: 100px;
                font-size: var(--fs-xsmall);
            }
        }

        .story-title {
            font-size: var(--fs-xl);
        }

        .story-intro {
            font-family: var(--font-body);
            line-height: 1.75;
            letter-spacing: 0.01em;
            padding: var(--space-lg);
            border-radius: 10px;
        }

        .mission-section,
        .chapters-section {
            h3 {
                display: flex;
                align-items: center;
                gap: var(--space-sm);
                margin-block-end: var(--space-lg);

                .section-icon {
                    display: inline-flex;
                    justify-content: center;
                    align-items: center;
                    inline-size: 32px;
                    block-size: 32px;
                    border-radius: 8px;
                    font-size: var(--fs-small);
                }
            }

            .chapter-count {
                font-weight: var(--fw-regular);
                font-size: var(--fs-small);
            }
        }

        .skill-tags,
        .chapter-tags {
            display: flex;
            flex-wrap: wrap;
            gap: var(--space-xs);
            margin-block-start: var(--space-md);

            .tag {
                padding: var(--space-3xs) var(--space-sm);
                border-radius: 100px;
                font-size: var(--fs-xsmall);
            }
        }

        .chapter-card {
            interpolate-size: allow-keywords;
            overflow-anchor: none;
            border-radius: 12px;
            margin-block-end: var(--space-md);
            transition: all 0.2s ease-out;

            summary {
                display: flex;
                gap: var(--wire-gap);
                align-items: flex-start;
                padding: var(--space-lg);
                cursor: pointer;
                list-style: none;
                user-select: none;
                transition: all 0.15s ease-out;

                &::-webkit-details-marker { display: none; }
            }

            &[open] summary {
                padding-block-end: var(--space-md);
            }

            &::details-content {
                block-size: 0;
                overflow: clip;
                transition: block-size 0.3s ease, content-visibility 0.3s allow-discrete;
            }

            &[open]::details-content {
                block-size: auto;
            }

            .chapter-number {
                flex-shrink: 0;
                display: flex;
                justify-content: center;
                align-items: center;
                inline-size: 40px;
                block-size: 40px;
                border-radius: 50%;
                font-size: var(--fs-small);
                transition: all 0.2s ease-out;
            }

            .chapter-content {
                flex: 1;

                > strong:first-child {
                    display: block;
                    margin-block-end: var(--space-3xs);
                }

                .chapter-type {
                    display: block;
                    font-size: var(--fs-xsmall);
                    margin-block-end: var(--space-xs);
                }

                p {
                    font-family: var(--font-body);
                    font-size: 0.9rem;
                    line-height: 1.75;
                    letter-spacing: 0.01em;
                }
            }

            .chapter-arrow {
                flex-shrink: 0;
                transition: transform 0.2s ease-out;
            }

            &[open] .chapter-arrow {
                transform: rotate(90deg);
            }
        }

        /* === CHAPTER DETAIL (expanded) === */
        .chapter-detail {
            padding: var(--space-sm) var(--space-lg) var(--space-lg);
            display: flex;
            flex-direction: column;
            gap: var(--space-md);
        }

        .detail-section {
            display: flex;
            flex-direction: column;
            gap: var(--space-xs);
        }

        .detail-label {
            font-size: var(--fs-xsmall);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            font-weight: var(--fw-semibold);
        }

        .detail-text {
            font-size: var(--fs-small);
            line-height: 1.7;
        }

        .badge--type {
            display: inline-flex;
            align-items: center;
            padding: var(--space-3xs) var(--space-sm);
            border-radius: 100px;
            font-size: var(--fs-xsmall);
            font-weight: var(--fw-medium);
            white-space: nowrap;
            width: fit-content;
        }

        .choices-list {
            display: flex;
            flex-direction: column;
            gap: var(--space-xs);
            padding-inline-start: var(--space-lg);

            li {
                font-size: var(--fs-small);
                line-height: 1.6;
            }
        }

        .code-block {
            padding: var(--space-md);
            border-radius: 8px;
            font-family: monospace;
            font-size: var(--fs-xsmall);
            line-height: 1.6;
            overflow-x: auto;
            white-space: pre;
        }

        /* === AUDIO BEHAVIOR FORM === */
        .audio-behavior-form {
            display: flex;
            flex-direction: column;
            gap: var(--space-xl);
        }

        .form-section {
            display: flex;
            flex-direction: column;
            gap: var(--space-md);
            padding: var(--space-lg);
            border-radius: 12px;
        }

        .form-section-header {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            padding-block-end: var(--space-md);

            h3 {
                font-size: var(--fs-body);
            }
        }

        .form-section-icon {
            display: flex;
            justify-content: center;
            align-items: center;
            inline-size: 32px;
            block-size: 32px;
            border-radius: 8px;
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: var(--space-md);
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: var(--space-3xs);

            label {
                font-size: var(--fs-xsmall);
                font-weight: var(--fw-medium);
                text-transform: uppercase;
                letter-spacing: 0.05em;
            }

            input[type="text"],
            select {
                padding: var(--space-sm) var(--space-md);
                border-radius: 8px;
                border: 1px solid transparent;
                font-size: var(--fs-small);
                font-family: inherit;
                outline: none;
                transition: border-color 0.15s ease-out;
                text-transform: capitalize;

                &:focus {
                    border-color: var(--accent-primary);
                }
            }
        }

        /* === SLIDERS === */
        .slider-group {
            display: flex;
            flex-direction: column;
            gap: var(--space-3xs);
        }

        .slider-label {
            display: flex;
            justify-content: space-between;
            align-items: baseline;

            label {
                font-size: var(--fs-small);
                font-weight: var(--fw-medium);
            }

            .slider-value {
                font-size: var(--fs-xsmall);
                font-weight: var(--fw-semibold);
                min-inline-size: 2.5em;
                text-align: end;
            }
        }

        .slider-range-labels {
            display: flex;
            justify-content: space-between;
            font-size: var(--fs-xsmall);
        }

        input[type="range"] {
            -webkit-appearance: none;
            appearance: none;
            inline-size: 100%;
            block-size: 6px;
            border-radius: 100px;
            outline: none;
            cursor: pointer;

            &::-webkit-slider-thumb {
                -webkit-appearance: none;
                appearance: none;
                inline-size: 18px;
                block-size: 18px;
                border-radius: 50%;
                cursor: pointer;
                border: 2px solid transparent;
                transition: transform 0.15s ease-out;
            }

            &::-webkit-slider-thumb:hover {
                transform: scale(1.15);
            }
        }

        /* === BEHAVIOR RATIONALE === */
        .behavior-rationale {
            display: flex;
            flex-direction: column;
            gap: var(--space-xs);
            padding: var(--space-md) var(--space-lg);
            border-radius: 10px;
            line-height: 1.7;
        }

        .rationale-header {
            display: flex;
            align-items: center;
            gap: var(--space-xs);
            font-size: var(--fs-xsmall);
            font-weight: var(--fw-semibold);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .rationale-text {
            font-size: var(--fs-small);
            margin: 0;
            transition: opacity 0.2s ease-out;
        }

        /* === ENTRANCE ANIMATIONS === */
        .page-header {
            animation: entrance-slide-right 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
        }

        .chat-sidebar {
            animation: entrance-slide-up 0.5s cubic-bezier(0.16, 1, 0.3, 1) 0.08s both;
        }

        .story-content > .card {
            animation: entrance-slide-up 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
            animation-delay: calc(0.1s + 0.08s * sibling-index());
        }

        .chapter-card {
            animation: entrance-slide-up 0.45s cubic-bezier(0.16, 1, 0.3, 1) both;
            animation-delay: calc(0.2s + 0.08s * sibling-index());
        }

        .page-bg-orb {
            animation: entrance-fade-in 1.2s ease-out both;
            animation-delay: calc(0.2s + 0.3s * sibling-index());
        }
    }
}

/* --- THEME --- */
@layer theme {
    .simulation-story-page {

        /* Markdown-rendered AI content */
        .story-content strong, .chapter-content strong {
            color: var(--accent-primary, oklch(0.65 0.15 250));
            font-weight: 600;
        }

        /* === STAGE 2 TABS === */
        .stage2-tabs {
            background: light-dark(oklch(0% 0 0 / 0.03), oklch(100% 0 0 / 0.04));
            border: 1px solid light-dark(oklch(0% 0 0 / 0.06), oklch(100% 0 0 / 0.08));
        }

        .stage2-tab {
            color: var(--text-secondary);

            &.active {
                background: light-dark(oklch(100% 0 0 / 0.9), oklch(100% 0 0 / 0.1));
                color: var(--text-primary);
                box-shadow: 0 1px 3px oklch(0% 0 0 / 0.08);
            }

            &:hover:not(.active) {
                color: var(--text-primary);
            }
        }

        /* === STORY META === */
        .story-meta {
            .difficulty {
                padding: var(--space-xs) var(--space-md);
                background: light-dark(oklch(0% 0 0 / 0.03), oklch(100% 0 0 / 0.04));
                border-radius: 100px;
                border: 1px solid light-dark(oklch(0% 0 0 / 0.06), oklch(100% 0 0 / 0.08));
                backdrop-filter: blur(8px);
                color: var(--text-secondary);
            }

            .status-badge {
                background: oklch(from var(--color-warning) l c h / 0.12);
                border: 1px solid oklch(from var(--color-warning) l c h / 0.25);
                color: var(--color-warning);
            }
        }

        /* === STORY INTRO === */
        .story-intro {
            color: light-dark(oklch(40% 0.01 250), oklch(78% 0.01 250));
            background: light-dark(oklch(0% 0 0 / 0.02), oklch(100% 0 0 / 0.03));
            border-inline-start: 3px solid var(--accent-primary);
        }

        /* === CHAPTER CARDS === */
        .chapter-card {
            background: light-dark(oklch(0% 0 0 / 0.02), oklch(100% 0 0 / 0.03));
            border: 1px solid oklch(from var(--glass-tint) l c h / 0.06);
            backdrop-filter: blur(8px);

            summary:hover {
                .chapter-number {
                    background: var(--accent-primary);
                    color: var(--button-text-color);
                    border-color: transparent;
                }

                .chapter-arrow {
                    color: var(--accent-primary);
                }
            }

            &[open] summary {
                border-block-end: 1px solid oklch(from var(--glass-tint) l c h / 0.06);
            }

            .chapter-number {
                border: 1px solid light-dark(oklch(0% 0 0 / 0.08), oklch(100% 0 0 / 0.1));
            }

            .chapter-content {
                .chapter-type {
                    color: var(--text-secondary);
                }

                p {
                    color: light-dark(oklch(40% 0.01 250), oklch(78% 0.01 250));
                }
            }

            .chapter-arrow {
                color: var(--text-secondary);
            }
        }

        .chapter-detail {
            background: light-dark(oklch(0% 0 0 / 0.01), oklch(100% 0 0 / 0.015));
        }

        .detail-label {
            color: light-dark(oklch(from var(--accent-primary) calc(l - 0.05) calc(c - 0.03) h), oklch(from var(--accent-primary) calc(l + 0.1) calc(c - 0.03) h));
        }

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

        .badge--type {
            background: light-dark(oklch(from var(--accent-primary) l c h / 0.1), oklch(from var(--accent-primary) l c h / 0.15));
            color: light-dark(oklch(from var(--accent-primary) calc(l - 0.1) c h), oklch(from var(--accent-primary) calc(l + 0.1) c h));
        }

        .code-block {
            background: light-dark(oklch(0.15 0 0), oklch(0.12 0 0));
            color: light-dark(oklch(0.85 0 0), oklch(0.85 0.01 200));
            border: 1px solid oklch(from var(--glass-tint) l c h / 0.08);
        }

        /* === AUDIO BEHAVIOR FORM === */
        .form-section {
            background: light-dark(oklch(100% 0 0 / 0.7), oklch(100% 0 0 / 0.03));
            border: 1px solid oklch(from var(--glass-tint) l c h / 0.06);
        }

        .form-section-header {
            border-block-end: 1px solid oklch(from var(--glass-tint) l c h / 0.06);
        }

        .form-section-icon {
            background: linear-gradient(135deg,
                light-dark(oklch(from var(--accent-primary) l c h / 0.15), oklch(from var(--accent-primary) l c h / 0.25)),
                light-dark(oklch(from var(--accent-primary) l c h / 0.05), oklch(from var(--accent-primary) l c h / 0.1)));
            border: 1px solid light-dark(oklch(from var(--accent-primary) l c h / 0.2), oklch(from var(--accent-primary) l c h / 0.3));
            color: var(--accent-primary);
        }

        .form-group {
            label {
                color: light-dark(oklch(from var(--accent-primary) calc(l - 0.05) calc(c - 0.03) h), oklch(from var(--accent-primary) calc(l + 0.1) calc(c - 0.03) h));
            }

            input[type="text"],
            select {
                background: light-dark(oklch(100% 0 0 / 0.8), oklch(100% 0 0 / 0.05));
                border-color: oklch(from var(--glass-tint) l c h / 0.08);
                color: var(--text-primary);
            }
        }

        .slider-value {
            color: var(--accent-primary);
        }

        .slider-range-labels {
            color: var(--text-secondary);
        }

        input[type="range"] {
            background: light-dark(oklch(0% 0 0 / 0.06), oklch(100% 0 0 / 0.08));

            &::-webkit-slider-thumb {
                background: var(--accent-primary);
                border-color: light-dark(oklch(100% 0 0), oklch(0.15 0 0));
                box-shadow: 0 2px 6px oklch(from var(--accent-primary) l c h / 0.3);
            }
        }

        /* === BEHAVIOR RATIONALE === */
        .behavior-rationale {
            background: light-dark(oklch(from var(--accent-primary) l c h / 0.06), oklch(from var(--accent-primary) l c h / 0.08));
            border: 1px solid light-dark(oklch(from var(--accent-primary) l c h / 0.12), oklch(from var(--accent-primary) l c h / 0.15));
        }

        .rationale-header {
            color: light-dark(oklch(from var(--accent-primary) calc(l - 0.05) calc(c - 0.03) h), oklch(from var(--accent-primary) calc(l + 0.1) calc(c - 0.03) h));
        }

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

        /* === SECTION ICONS === */
        .section-icon {
            background: linear-gradient(135deg,
                light-dark(oklch(from var(--accent-primary) l c h / 0.15), oklch(from var(--accent-primary) l c h / 0.25)),
                light-dark(oklch(from var(--accent-primary) l c h / 0.05), oklch(from var(--accent-primary) l c h / 0.1)));
            border: 1px solid light-dark(oklch(from var(--accent-primary) l c h / 0.2), oklch(from var(--accent-primary) l c h / 0.3));
            color: var(--accent-primary);
            box-shadow: 0 2px 12px light-dark(oklch(from var(--accent-primary) l c h / 0.08), oklch(from var(--accent-primary) l c h / 0.15));
        }

        .chapters-section .chapter-count {
            color: var(--text-secondary);
        }

        /* === CHIPS === */
        .chip {
            backdrop-filter: blur(8px);
            transition: all 0.2s ease-out;

            &:hover {
                transform: translateY(-1px);
                box-shadow: 0 4px 12px oklch(0% 0 0 / 0.15);
            }
        }
    }
}