/* ==========================================================================
   合同会社みらい樹 - システム図解・アーキテクチャ・データフローCSS (diagrams.css)
   仕様書第0項, 第11項, 第12項, 第13項, 第16項, 第18項, 第33項, 第34項, 第38項 準拠
   HTML/CSS/SVGによる完全レスポンシブな精緻な構造化ダイアグラム
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. 図解共通ベース
   -------------------------------------------------------------------------- */
.diagram-canvas {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 36px 32px;
    box-shadow: var(--shadow-technical);
    position: relative;
    overflow: hidden;
}

.diagram-canvas.dark {
    background: #0b1329;
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    color: #ffffff;
}

.diagram-title-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 20px;
    margin-bottom: 28px;
    border-bottom: 1px dashed var(--color-border);
}

.diagram-canvas.dark .diagram-title-bar {
    border-bottom-color: rgba(255, 255, 255, 0.15);
}

.diagram-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--color-primary);
    background: #eff6ff;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    border: 1px solid #bfdbfe;
}

.diagram-canvas.dark .diagram-tag {
    color: #60a5fa;
    background: rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.3);
}

.diagram-legend {
    display: flex;
    gap: 16px;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.diagram-canvas.dark .diagram-legend {
    color: var(--color-text-light-muted);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.legend-dot.blue { background-color: var(--color-primary-light); }
.legend-dot.green { background-color: var(--color-accent-light); }
.legend-dot.navy { background-color: var(--color-bg-navy); }

/* --------------------------------------------------------------------------
   1. TOP: 研究から実装まで (水平プロセス図解: 仕様書第11項)
   RESEARCH → AI/LLM → SYSTEM → IoT/VISION → OPERATION
   -------------------------------------------------------------------------- */
.process-flow-horizontal {
    display: flex;
    align-items: stretch;
    gap: 12px;
    position: relative;
    width: 100%;
}

.process-step-node {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 24px 18px;
    position: relative;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.process-step-node:hover {
    border-color: var(--color-primary-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.process-step-node.highlight {
    border-color: var(--color-accent);
    background: linear-gradient(180deg, #ffffff 0%, var(--color-accent-subtle) 100%);
}

.step-num-badge {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 700;
    color: var(--color-primary);
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
    width: fit-content;
    margin-bottom: 12px;
}

.process-step-node.highlight .step-num-badge {
    color: var(--color-accent);
    background: #d1fae5;
    border-color: #a7f3d0;
}

.step-node-title {
    font-size: 1.125rem;
    font-weight: 800;
    color: var(--color-bg-navy);
    margin-bottom: 4px;
    letter-spacing: -0.01em;
}

.step-node-sub {
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--color-accent);
    font-weight: 700;
    margin-bottom: 14px;
}

.step-node-items {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: auto;
    padding-top: 14px;
    border-top: 1px dashed var(--color-border);
}

.step-node-pill {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-main);
    background: var(--color-bg-light);
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

.process-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary-light);
    flex-shrink: 0;
    padding: 0 4px;
}

/* --------------------------------------------------------------------------
   2. TOP: AI技術レベル (階段・レイヤー図: 仕様書第12項)
   LEVEL 01 API → LEVEL 02 RAG → LEVEL 03 FINE-TUNING → LEVEL 04 PRIVATE LLM → LEVEL 05 OFFLINE AI
   -------------------------------------------------------------------------- */
.tech-level-stepper {
    display: flex;
    flex-direction: column;
    gap: 14px;
    width: 100%;
}

.level-row {
    display: grid;
    grid-template-columns: 140px 1fr 240px;
    align-items: center;
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 16px 24px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    position: relative;
}

.level-row:hover {
    border-color: var(--color-primary);
    transform: translateX(6px);
    box-shadow: var(--shadow-md);
}

.level-row.level-deep {
    border-left: 5px solid var(--color-accent);
    background: linear-gradient(90deg, #f0fdf4 0%, #ffffff 15%);
}

.level-row.level-deep:hover {
    border-left-color: var(--color-accent);
}

.level-badge-col {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.level-code {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--color-primary);
    letter-spacing: 0.05em;
}

.level-row.level-deep .level-code {
    color: var(--color-accent);
}

.level-title {
    font-size: 1.0625rem;
    font-weight: 800;
    color: var(--color-bg-navy);
}

.level-desc-col {
    padding-left: 20px;
    padding-right: 20px;
    border-left: 1px solid var(--color-border);
}

.level-desc-main {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-text-main);
    margin-bottom: 2px;
}

.level-desc-sub {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.level-tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: flex-end;
}

.tech-tag-chip {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 600;
    background: var(--color-bg-light);
    color: var(--color-text-main);
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid var(--color-border);
}

.level-connector-bar {
    width: 2px;
    height: 12px;
    background: repeating-linear-gradient(to bottom, var(--color-border), var(--color-border) 4px, transparent 4px, transparent 8px);
    margin: 0 auto;
}

/* --------------------------------------------------------------------------
   3. TOP: AIシステム構成イメージ (全面構成図: 仕様書第13項)
   USER → WEB/APP → AI APPLICATION → RAG ↔ VECTOR DB → LLM → COMPANY DATA
   -------------------------------------------------------------------------- */
.system-architecture-map {
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 100%;
}

.arch-layer-group {
    display: flex;
    align-items: center;
    gap: 20px;
}

.arch-layer-label {
    width: 140px;
    flex-shrink: 0;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-text-subtle);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    text-align: right;
}

.arch-layer-content {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 14px;
}

.arch-node-box {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    box-shadow: var(--shadow-sm);
    flex: 1;
    position: relative;
    transition: var(--transition-base);
}

.arch-node-box:hover {
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-md);
}

.arch-node-box.accent-node {
    border-color: var(--color-accent);
    background: #f0fdf4;
}

.arch-node-box.primary-node {
    border-color: var(--color-primary);
    background: #eff6ff;
}

.arch-node-box.dark-node {
    background: var(--color-bg-navy);
    color: #ffffff;
    border-color: var(--color-border-dark);
}

.arch-node-title {
    font-size: 0.9375rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.arch-node-sub {
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.dark-node .arch-node-sub {
    color: var(--color-text-light-muted);
}

.arch-bi-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-weight: 700;
}

.arch-data-sources {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    width: 100%;
}

.data-source-pill {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    text-align: center;
    font-size: 0.8125rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    box-shadow: var(--shadow-sm);
}

.data-source-pill svg {
    color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   4. TOP: IoT構成図 (仕様書第16項)
   CAMERA/SENSOR/DEVICE → NETWORK → SERVER/CLOUD → AI → DATABASE → DASHBOARD → ACTION
   -------------------------------------------------------------------------- */
.iot-pipeline-flow {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 12px;
    align-items: stretch;
    position: relative;
}

.iot-flow-step {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 18px 14px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.iot-flow-step:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.iot-step-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: #eff6ff;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}

.iot-flow-step.ai-step .iot-step-icon {
    background: #d1fae5;
    color: var(--color-accent);
}

.iot-step-label {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 700;
    color: var(--color-text-subtle);
    margin-bottom: 4px;
}

.iot-step-title {
    font-size: 0.875rem;
    font-weight: 800;
    color: var(--color-bg-navy);
    margin-bottom: 8px;
}

.iot-step-desc {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    line-height: 1.4;
}

/* リアルタイムデータバッジ群 */
.iot-data-tags-row {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px dashed var(--color-border);
}

.iot-live-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    background: #f8fafc;
    border: 1px solid var(--color-border);
    padding: 6px 14px;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pulse-indicator {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    animation: pulseAnim 2s infinite;
}

@keyframes pulseAnim {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.5); }
    70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* --------------------------------------------------------------------------
   5. TOP: AI講習・現場知見 (仕様書第18項)
   500名+/90%+ ＆ 逆転現象フロー ＆ 3分類
   -------------------------------------------------------------------------- */
.training-insight-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    align-items: start;
}

.paradox-flow-card {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 32px;
    box-shadow: var(--shadow-sm);
}

.paradox-flow-steps {
    display: flex;
    flex-direction: column;
    gap: 10px;
    position: relative;
    margin-top: 20px;
}

.paradox-step {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    background: #f8fafc;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 600;
}

.paradox-step.warning-step {
    background: #fff7ed;
    border-color: #fdba74;
    color: #c2410c;
}

.paradox-step.danger-step {
    background: #fef2f2;
    border-color: #fca5a5;
    color: #b91c1c;
    font-weight: 700;
}

.paradox-step-arrow {
    text-align: center;
    color: var(--color-text-subtle);
    font-size: 0.75rem;
    line-height: 1;
}

.work-classification-matrix {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.matrix-block {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    box-shadow: var(--shadow-sm);
    position: relative;
}

.matrix-block.type-ai {
    border-left: 5px solid var(--color-primary);
}

.matrix-block.type-human {
    border-left: 5px solid #d97706;
}

.matrix-block.type-no-ai {
    border-left: 5px solid #64748b;
    background: #f8fafc;
}

.matrix-title {
    font-size: 1rem;
    font-weight: 800;
    color: var(--color-bg-navy);
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.matrix-desc {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* --------------------------------------------------------------------------
   6. 比較図: Cloud AI vs Private LLM (仕様書第22項)
   -------------------------------------------------------------------------- */
.comparison-dual-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
    width: 100%;
}

.compare-card {
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 32px 28px;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
}

.compare-card.recommended {
    border-color: var(--color-accent);
    background: linear-gradient(180deg, #ffffff 0%, #f0fdf4 100%);
    box-shadow: var(--shadow-lg);
    position: relative;
}

.compare-header {
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 16px;
    margin-bottom: 24px;
}

.compare-badge {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 9999px;
    display: inline-block;
    margin-bottom: 8px;
}

.compare-card:not(.recommended) .compare-badge {
    background: #f1f5f9;
    color: #475569;
}

.compare-card.recommended .compare-badge {
    background: #d1fae5;
    color: var(--color-accent);
}

.compare-title {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-bg-navy);
}

.compare-pipeline-visual {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 24px;
}

.compare-node {
    background: #f8fafc;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 12px 16px;
    font-size: 0.875rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.compare-card.recommended .compare-node {
    background: #ffffff;
    border-color: #cbd5e1;
}

.compare-arrow {
    text-align: center;
    color: var(--color-text-subtle);
    font-size: 0.75rem;
}

.compare-feature-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px dashed var(--color-border);
}

.compare-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.8125rem;
    color: var(--color-text-main);
}

/* --------------------------------------------------------------------------
   7. 技術スタック・アーキテクチャ図 (仕様書第29項)
   APPLICATION → AI APP → MODEL → INFERENCE → DATA → INFRASTRUCTURE
   -------------------------------------------------------------------------- */
.tech-stack-layers {
    display: flex;
    flex-direction: column;
    gap: 16px;
    width: 100%;
}

.stack-layer-row {
    display: grid;
    grid-template-columns: 180px 1fr;
    background: #ffffff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.stack-layer-row:hover {
    border-color: var(--color-primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stack-layer-name-col {
    background: #f8fafc;
    border-right: 1px solid var(--color-border);
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.stack-layer-code {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stack-layer-title {
    font-size: 0.9375rem;
    font-weight: 800;
    color: var(--color-bg-navy);
}

.stack-layer-chips-col {
    padding: 18px 24px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.stack-chip {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-text-main);
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
}

.stack-chip.accent-chip {
    background: #d1fae5;
    border-color: #a7f3d0;
    color: #065f46;
}

/* --------------------------------------------------------------------------
   8. レスポンシブ図解最適化 (仕様書第38項: スマホ縦再構成)
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .process-flow-horizontal {
        flex-direction: column;
    }
    .process-arrow {
        transform: rotate(90deg);
        margin: 4px 0;
    }
    .level-row {
        grid-template-columns: 120px 1fr;
        gap: 12px;
    }
    .level-tech-tags {
        grid-column: 1 / -1;
        justify-content: flex-start;
        margin-top: 8px;
    }
    .iot-pipeline-flow {
        grid-template-columns: repeat(4, 1fr);
    }
    .training-insight-grid {
        grid-template-columns: 1fr;
    }
    .comparison-dual-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .diagram-canvas {
        padding: 20px 14px;
        border-radius: var(--radius-lg);
    }
    .diagram-title-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        margin-bottom: 20px;
    }
    .diagram-legend {
        flex-wrap: wrap;
        gap: 8px 12px;
    }
    .process-step-node {
        padding: 16px 14px;
    }
    .process-arrow {
        transform: rotate(90deg);
        margin: 6px auto;
    }
    .level-row {
        grid-template-columns: 1fr;
    }
    .level-desc-col {
        padding-left: 0;
        padding-right: 0;
        border-left: none;
        border-top: 1px solid var(--color-border);
        padding-top: 12px;
    }
    .arch-layer-group {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    .arch-layer-label {
        width: 100%;
        text-align: left;
    }
    .arch-layer-content {
        width: 100%;
        flex-direction: column;
    }
    .arch-data-sources {
        grid-template-columns: 1fr;
    }
    .iot-pipeline-flow {
        grid-template-columns: 1fr;
    }
    .stack-layer-row {
        grid-template-columns: 1fr;
    }
    .stack-layer-name-col {
        border-right: none;
        border-bottom: 1px solid var(--color-border);
    }
    .matrix-block {
        padding: 20px 16px !important;
    }
}

@media (max-width: 480px) {
    .diagram-canvas {
        padding: 16px 10px;
    }
    .process-step-title {
        font-size: 0.875rem;
    }
}