/* ===== Solution Design Document Styles ===== */

/* SDD Header */
.sdd-header {
    text-align: center;
    padding: 3rem 0 2rem;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 3rem;
}

.sdd-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.sdd-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin: 0.5rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sdd-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin: 0.5rem 0 1.5rem;
    border: none;
    padding: 0;
}

.sdd-meta {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 1.5rem;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9375rem;
}

.meta-item strong {
    color: var(--text-secondary);
}

.status-active {
    color: #10b981;
    font-weight: 600;
}

.doc-title {
    flex: 1;
}

.doc-title h2 {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 0;
}

.doc-title p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

/* Highlight Box */
.highlight-box {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(139, 92, 246, 0.1));
    border: 2px solid var(--primary-color);
    border-radius: 12px;
    padding: 2rem;
    margin: 2rem 0;
}

.highlight-box h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0 0 1.25rem 0;
    color: var(--primary-color);
}

.highlight-box ul {
    margin: 0;
    padding-left: 1.5rem;
}

.highlight-box li {
    margin: 0.75rem 0;
}

.highlight-box li strong {
    color: var(--primary-color);
}

/* Solution Grid */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin: 2.5rem 0;
}

.solution-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: var(--transition);
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.solution-icon {
    width: 70px;
    height: 70px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.solution-icon i {
    font-size: 2rem;
    color: white;
}

.solution-icon.backend {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.solution-icon.database {
    background: linear-gradient(135deg, #10b981, #059669);
}

.solution-icon.ai {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.solution-icon.parser {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.solution-icon.testing {
    background: linear-gradient(135deg, #ec4899, #db2777);
}

.solution-icon.infra {
    background: linear-gradient(135deg, #6366f1, #4f46e5);
}

.solution-card h3 {
    font-size: 1.375rem;
    font-weight: 700;
    margin: 0 0 0.5rem 0;
}

.solution-card > p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    margin: 0 0 1rem 0;
}

.tech-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0 0;
}

.tech-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    font-size: 0.9375rem;
}

.tech-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Tech Stack Detail */
.tech-stack-detail {
    display: grid;
    gap: 2rem;
    margin: 2.5rem 0;
}

.stack-category {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
}

.stack-category h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin: 0 0 1rem 0;
    font-size: 1.125rem;
    color: var(--text-primary);
}

.tech-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tech-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
}

.tech-badge:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

/* Features List */
.features-list {
    margin: 2rem 0;
}

.feature-row {
    display: flex;
    gap: 1.25rem;
    padding: 1.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 1rem;
    transition: var(--transition);
}

.feature-row:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.feature-row > i {
    font-size: 1.5rem;
    color: #10b981;
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.feature-row h4 {
    margin: 0 0 0.5rem 0;
    font-size: 1.125rem;
}

.feature-row p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* Document Structure */
.doc-structure {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    margin: 2rem 0;
}

.structure-item {
    padding: 1rem;
    border-left: 3px solid var(--primary-color);
    background: var(--bg-secondary);
    margin-bottom: 1rem;
    border-radius: 4px;
    font-size: 0.9375rem;
}

.structure-item:last-child {
    margin-bottom: 0;
}

.structure-item strong {
    color: var(--primary-color);
    margin-right: 0.5rem;
}

/* Architecture Diagram Enhancements */
.architecture-visual {
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 16px;
    padding: 3rem 2rem;
    margin: 3rem 0;
}

.arch-layer {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: 12px;
}

.arch-layer-title {
    grid-column: 1 / -1;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.arch-box {
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.arch-box:hover {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.arch-box i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
    display: block;
}

.arch-box h4 {
    margin: 0.5rem 0;
    font-size: 1rem;
}

.arch-box p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Data Flow Diagram */
.dataflow-diagram {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    margin: 2rem 0;
}

.flow-step {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.flow-number {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.flow-content {
    flex: 1;
    background: var(--bg-secondary);
    padding: 1.25rem;
    border-radius: 8px;
}

.flow-content h4 {
    margin: 0 0 0.5rem 0;
}

.flow-content p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.flow-arrow {
    text-align: center;
    color: var(--primary-color);
    font-size: 1.5rem;
    margin: 0.5rem 0;
}

/* API Endpoint Card */
.api-endpoint {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin: 1.5rem 0;
    overflow: hidden;
}

.endpoint-header {
    background: var(--bg-secondary);
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.http-method {
    padding: 0.375rem 0.875rem;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.875rem;
    font-family: 'Fira Code', monospace;
}

.http-method.get { background: #10b981; color: white; }
.http-method.post { background: #3b82f6; color: white; }
.http-method.put { background: #f59e0b; color: white; }
.http-method.patch { background: #8b5cf6; color: white; }
.http-method.delete { background: #ef4444; color: white; }

.endpoint-path {
    font-family: 'Fira Code', monospace;
    font-size: 1rem;
    font-weight: 600;
}

.endpoint-body {
    padding: 1.5rem;
}

.endpoint-body h4 {
    margin: 1.5rem 0 0.75rem 0;
    font-size: 1rem;
}

.endpoint-body h4:first-child {
    margin-top: 0;
}

/* Database Schema Table */
.schema-table {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    margin: 1.5rem 0;
}

.schema-header {
    background: var(--bg-secondary);
    padding: 1rem 1.5rem;
    font-weight: 700;
    border-bottom: 2px solid var(--border-color);
}

.schema-field {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: grid;
    grid-template-columns: 200px 150px 1fr;
    gap: 1.5rem;
    align-items: start;
}

.schema-field:last-child {
    border-bottom: none;
}

.field-name {
    font-family: 'Fira Code', monospace;
    font-weight: 600;
    color: var(--primary-color);
}

.field-type {
    font-family: 'Fira Code', monospace;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.field-desc {
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

/* Back Link */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-secondary);
    border-radius: 6px;
    font-size: 0.875rem;
    transition: var(--transition);
    color: var(--text-primary);
}

.back-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateX(-3px);
}

/* Responsive */
@media (max-width: 768px) {
    .sdd-header h1 {
        font-size: 2rem;
    }

    .sdd-meta {
        flex-direction: column;
        gap: 0.75rem;
        align-items: center;
    }

    .solution-grid {
        grid-template-columns: 1fr;
    }

    .flow-step {
        flex-direction: column;
        text-align: center;
    }

    .schema-field {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .endpoint-header {
        flex-direction: column;
        align-items: flex-start;
    }
}