:root {
    --accent-blue: #2f86b5;
    --accent-copper: #a46a41;
    --accent-gold: #d9aa58;
    --accent-green: #4f8b70;
    --ink: #20313d;
    --muted: #5e6d78;
    --panel: rgba(255, 251, 244, 0.92);
    --panel-strong: #fffaf2;
    --border: rgba(92, 118, 133, 0.18);
}

html, body {
    font-family: Inter, 'Segoe UI', Helvetica, Arial, sans-serif;
    color: var(--ink);
    background: #eef3f7;
    font-size: 16px;
}

body {
    margin: 0;
}

a, .btn-link {
    color: var(--accent-blue);
}

.btn {
    border-radius: 999px;
    font-weight: 700;
    padding: 0.8rem 1.15rem;
    min-height: 48px;
}

.app-btn-primary {
    color: white;
    background: linear-gradient(135deg, #1b5f87 0%, #2e83b4 100%);
    border: none;
}

.app-btn-primary:hover {
    color: white;
    background: linear-gradient(135deg, #184f70 0%, #246d95 100%);
}

.app-btn-secondary {
    color: var(--ink);
    background: white;
    border: 1px solid var(--border);
}

.page-shell {
    display: grid;
    gap: 1.25rem;
}

.section-card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 1rem;
    box-shadow: 0 12px 28px rgba(25, 47, 61, 0.08);
}

.soft-panel {
    background: linear-gradient(180deg, #fffdf8 0%, #f3f7fa 100%);
}

.compact-panel {
    min-height: 100%;
}

.hero-card,
.section-grid,
.home-grid,
.guide-layout,
.calculator-layout,
.project-layout,
.quality-layout,
.scan-layout,
.assistant-grid,
.guide-columns,
.project-columns,
.two-columns {
    display: grid;
    gap: 1.25rem;
}

.hero-card,
.two-columns,
.guide-layout,
.calculator-layout,
.project-layout,
.quality-layout,
.scan-layout,
.assistant-grid,
.guide-columns,
.project-columns {
    grid-template-columns: 1fr;
}

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

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

.hero-copy {
    display: grid;
    gap: 1rem;
    align-content: center;
}

.hero-visual img,
.detail-image,
.photo-image,
.preview-image {
    width: 100%;
    display: block;
    border-radius: 22px;
}

.section-copy,
.photo-copy p,
.project-summary,
.reply-card,
.result-callout p,
.feature-card p {
    color: var(--muted);
    line-height: 1.6;
}

.eyebrow {
    margin: 0 0 0.3rem;
    color: var(--accent-blue);
    font-size: 0.85rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

h1, h2, h3 {
    margin: 0;
    line-height: 1.15;
}

h1 {
    font-size: clamp(1.8rem, 6vw, 3.4rem);
}

h2 {
    font-size: clamp(1.35rem, 4.8vw, 2.1rem);
}

h3 {
    font-size: clamp(1.05rem, 3.8vw, 1.35rem);
}

.hero-actions,
.badge-row,
.tag-row,
.prompt-suggestions,
.nav-link-set,
.status-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.hero-actions,
.cta-row,
.prompt-suggestions {
    display: grid;
    grid-template-columns: 1fr;
}

.status-list {
    margin-top: 0.25rem;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.status-item {
    min-width: 128px;
    display: grid;
    gap: 0.15rem;
    padding: 0.9rem 1rem;
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(92, 118, 133, 0.12);
}

.status-item strong {
    font-size: 1.4rem;
}

.action-grid,
.metric-grid,
.field-grid,
.signal-grid,
.stats-stack,
.tip-stack,
.checklist-stack,
.project-list,
.photo-gallery,
.workflow-grid,
.knowledge-grid,
.diagram-stats,
.guide-summary-grid,
.filter-chip-row {
    display: grid;
    gap: 1rem;
}

.action-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.action-card,
.guide-selector,
.project-card,
.photo-card {
    border: 1px solid var(--border);
    background: white;
    border-radius: 22px;
    padding: 1rem;
    text-align: left;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.action-card:hover,
.guide-selector:hover,
.project-card:hover,
.photo-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 30px rgba(25, 47, 61, 0.08);
}

.action-icon {
    width: 52px;
    height: 52px;
    display: inline-grid;
    place-items: center;
    margin-bottom: 0.75rem;
    border-radius: 16px;
    color: white;
    font-size: 1.5rem;
}

.guide-list-card,
.guide-detail-card,
.input-panel,
.output-panel,
.project-detail,
.photo-detail,
.upload-panel,
.preview-panel,
.assistant-shell {
    display: grid;
    gap: 1rem;
}

.guide-selector {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    width: 100%;
}

.guide-selector.active,
.project-card.selected,
.photo-card.selected {
    border-color: rgba(47, 134, 181, 0.55);
    box-shadow: 0 0 0 4px rgba(47, 134, 181, 0.08);
}

.workflow-grid,
.knowledge-grid {
    grid-template-columns: 1fr;
}

.workflow-card,
.knowledge-card {
    overflow: hidden;
    border: 1px solid var(--border);
    border-radius: 24px;
    background: white;
    box-shadow: 0 14px 30px rgba(25, 47, 61, 0.06);
}

.workflow-image,
.knowledge-image,
.guide-preview-image {
    width: 100%;
    display: block;
}

.workflow-copy,
.knowledge-copy {
    display: grid;
    gap: 0.75rem;
    padding: 1rem;
}

.workflow-subtitle {
    margin: -0.35rem 0 0;
    color: var(--accent-blue);
    font-weight: 700;
}

.guide-preview-image {
    border-radius: 22px;
    border: 1px solid var(--border);
    background: #f7fafc;
}

.guide-summary-grid,
.diagram-stats {
    grid-template-columns: 1fr;
}

.material-chip {
    background: rgba(217, 170, 88, 0.12);
    color: #876124;
}

.critical-tip,
.check-card.critical {
    border-color: rgba(164, 106, 65, 0.26);
    background: linear-gradient(180deg, #fffdfa 0%, #f9f1eb 100%);
}

.blueprint-card {
    background: linear-gradient(180deg, #fcfeff 0%, #f0f5f8 100%);
}

.filter-card {
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.filter-chip-row {
    grid-template-columns: repeat(auto-fit, minmax(120px, max-content));
}

.filter-chip {
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.7rem 1rem;
    background: white;
    font-weight: 700;
    color: var(--ink);
}

.filter-chip.active {
    color: white;
    border-color: transparent;
    background: linear-gradient(135deg, #1b5f87 0%, #2e83b4 100%);
}

.simple-list {
    margin: 0;
    padding-left: 1.15rem;
    color: var(--muted);
    display: grid;
    gap: 0.6rem;
}

.compact-list {
    gap: 0.45rem;
}

.compact-stats {
    gap: 0.65rem;
}

.compact-knowledge-card .knowledge-image {
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.section-headline {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1rem;
}

.guide-icon,
.generic-illustration-icon {
    width: 48px;
    height: 48px;
    display: grid;
    place-items: center;
    border-radius: 16px;
    font-size: 1.35rem;
    background: rgba(47, 134, 181, 0.12);
}

.guide-selector small,
.upload-caption,
.project-card p,
.detail-header p,
.assistant-label {
    display: block;
    color: var(--muted);
}

.step-list {
    margin: 0;
    padding-left: 1.1rem;
    display: grid;
    gap: 0.75rem;
}

.step-item label,
.toggle-row,
.check-card,
.stat-line,
.project-meta-row,
.project-card-top,
.detail-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.step-item label,
.toggle-row,
.check-card {
    justify-content: flex-start;
}

.tip-card,
.result-callout,
.reply-card,
.metric-card,
.soft-badge,
.score-badge,
.tag-chip {
    border-radius: 18px;
}

.tip-card,
.reply-card,
.result-callout,
.metric-card,
.check-card,
.soft-badge,
.tag-chip,
.score-badge {
    background: white;
    border: 1px solid var(--border);
}

.tip-card,
.reply-card,
.result-callout,
.metric-card,
.check-card {
    padding: 1rem;
}

.small-callout {
    margin-top: 1rem;
}

.soft-badge,
.tag-chip,
.score-badge,
.diagram-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.45rem 0.8rem;
    font-size: 0.85rem;
    font-weight: 700;
}

.soft-badge,
.diagram-badge {
    color: var(--ink);
    background: rgba(255, 255, 255, 0.82);
}

.score-badge {
    background: rgba(79, 139, 112, 0.14);
    color: #215940;
}

.tag-chip {
    background: rgba(47, 134, 181, 0.08);
    color: var(--accent-blue);
}

.metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.metric-card {
    display: grid;
    gap: 0.35rem;
}

.metric-card span {
    color: var(--muted);
}

.metric-card strong {
    font-size: 1.15rem;
}

.metric-card.accent {
    background: linear-gradient(135deg, rgba(27, 95, 135, 0.1) 0%, rgba(47, 134, 181, 0.18) 100%);
}

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

.field-grid label,
.assistant-grid > div {
    display: grid;
    gap: 0.45rem;
}

.app-input {
    border-radius: 16px;
    border: 1px solid rgba(92, 118, 133, 0.2);
    padding: 0.8rem 0.95rem;
    font-size: 16px;
}

.materials-table-wrapper {
    overflow-x: auto;
}

.app-table {
    margin-bottom: 0;
}

.app-table thead th {
    color: var(--muted);
    font-weight: 700;
    border-bottom-width: 1px;
}

.app-table tbody td {
    vertical-align: middle;
}

.progress-shell {
    width: 100%;
    height: 10px;
    background: rgba(47, 134, 181, 0.12);
    border-radius: 999px;
    overflow: hidden;
}

.progress-value {
    height: 100%;
    background: linear-gradient(90deg, #1b5f87 0%, #4ea0cf 100%);
    border-radius: inherit;
}

.notes-box,
.assistant-box {
    min-height: 140px;
}

.photo-card,
.project-card {
    width: 100%;
}

.photo-copy,
.project-highlight,
.feature-card,
.assistant-reply,
.roof-diagram-card {
    display: grid;
    gap: 0.8rem;
}

.scan-layout .preview-panel,
.quality-layout .photo-detail {
    align-content: start;
}

.signal-grid,
.project-list,
.photo-gallery {
    grid-template-columns: 1fr;
}

.photo-gallery {
    align-content: start;
}

.suggestion-btn {
    border: 1px solid var(--border);
    background: white;
}

.roof-diagram {
    width: 100%;
    height: auto;
}

.diagram-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    flex-direction: column;
    gap: 0.75rem;
}

.diagram-text,
.diagram-label {
    fill: #2b3e4b;
    font-size: 13px;
    font-family: Inter, 'Segoe UI', Arial, sans-serif;
    font-weight: 700;
}

.diagram-label {
    font-size: 14px;
}

.diagram-stats {
    margin-top: 0.35rem;
}

.not-found-card {
    justify-items: start;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

h1:focus {
    outline: none;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid #e50000;
}

.validation-message {
    color: #e50000;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.darker-border-checkbox.form-check-input {
    border-color: #929292;
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}