/* ==========================================================================
   PRIMARY INTERFACE DESIGN SYSTEM SPECIFICATIONS
   ========================================================================== */

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--background);
    color: var(--text-dark);
    margin: 0;
    -webkit-font-smoothing: antialiased;
}


.brand-logo { font-size: 18px; color: #111827; }
.nav-links { display: flex; list-style: none; gap: 24px; margin: 0; padding: 0; font-size: 14px; color: #4b5563; }
.active-link { color: #5279A6; font-weight: 600; }
.nav-cta { background: #111827; color: #fff; border: 1px solid #111827; padding: 8px 16px; border-radius: 6px; font-weight: 500; cursor: pointer; }

.estimator-workspace { padding: 70px 0; background-color: var(--background); }
.workspace-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.workspace-header { text-align: center; margin-bottom: 50px; }

.pill-badge {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    color: #5279A6;
    letter-spacing: 1px;
    background-color: #F4F7FA;
    padding: 6px 14px;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 14px;
}
.main-title { font-size: 34px; font-weight: 700; color: #111827; margin: 0 0 10px 0; letter-spacing: -0.5px; }
.main-subtitle { font-size: 15px; color: #6b7280; max-width: 580px; margin: 0 auto; line-height: 1.5; }

/* Dynamic Multi-Step Grid Workspace Framework */
.grid-layout {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 36px;
    align-items: start;
}
.card-shadow {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 35px;
    box-sizing: border-box;
}

/* Timeline Stepper Component Array Map Layouts */
.timeline-progress { display: flex; justify-content: space-between; position: relative; margin-bottom: 40px; }
.timeline-progress::before { content: ''; position: absolute; top: 50%; left: 0; right: 0; height: 2px; background-color: #E5E7EB; transform: translateY(-50%); z-index: 0; }
.timeline-line-fill { position: absolute; top: 50%; left: 0; height: 2px; background-color: var(--primary); width: 0%; transform: translateY(-50%); transition: width 0.25s cubic-bezier(0.4, 0, 0.2, 1); z-index: 1; }
.timeline-step { width: 34px; height: 34px; border-radius: 50%; background-color: #ffffff; border: 2px solid #E5E7EB; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 600; color: #6b7280; position: relative; z-index: 2; transition: all 0.2s ease; }
.timeline-step.active { border-color: var(--primary); background-color: var(--primary); color: #ffffff; }

/* Form Field Integration Controllers */
.step-wrapper { display: none; }
.step-wrapper.active { display: block; animation: stepFadeIn 0.2s linear; }
@keyframes stepFadeIn { from { opacity: 0; transform: translateY(3px); } to { opacity: 1; transform: translateY(0); } }
.step-heading { font-size: 19px; font-weight: 700; color: #111827; margin: 0 0 24px 0; }
.input-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field-box { display: flex; flex-direction: column; gap: 6px; }
.field-box.standard-width { max-width: 100%; }
.field-box label { font-size: 11px; font-weight: 600; color: #374151; text-transform: uppercase; letter-spacing: 0.5px; }
.field-box input, .field-box select { padding: 12px; border: 1px solid #D1D5DB; border-radius: 6px; font-size: 14px; color: #111827; background-color: #ffffff; outline: none; }
.field-box input:focus, .field-box select:focus { border-color: var(--primary); }

.wizard-nav-controls { display: flex; justify-content: space-between; margin-top: 40px; padding-top: 20px; border-top: 1px solid #F3F4F6; }
.control-btn { padding: 12px 24px; font-size: 14px; font-weight: 600; border-radius: var(--radius-sm); cursor: pointer; transition: var(--transition); }
.prev-btn-layout { background-color: rgba(255, 255, 255, 0.45); border: 1px solid var(--border); color: var(--text-dark); backdrop-filter: blur(8px); }
.prev-btn-layout:disabled { opacity: 0.4; cursor: not-allowed; }
.prev-btn-layout:not(:disabled):hover { background-color: rgba(255, 255, 255, 0.7); border-color: var(--primary); transform: translateY(-2px); }
.next-btn-layout { background: var(--gradient-primary); border: none; color: var(--text-white); box-shadow: 0 4px 14px rgba(112, 147, 193, 0.3); }
.next-btn-layout:hover { box-shadow: 0 6px 20px rgba(112, 147, 193, 0.45); transform: translateY(-2px); }

/* ==========================================================================
   DYNAMIC PROPOSAL SIDEBAR PRESENTATION SPECIFICATIONS
   ========================================================================== */

.invoice-summary-column { display: flex; flex-direction: column; gap: 24px; }
.proposal-document-card { background-color: #ffffff; border: 1px solid var(--border); border-radius: 12px; padding: 35px; box-shadow: 0 4px 24px rgba(0, 0, 0, 0.015); box-sizing: border-box; }
.invoice-card-heading { font-size: 20px; font-weight: 700; color: #111827; margin: 0 0 16px 0; }
.client-meta-block { background-color: #F8FAFC; border-radius: 8px; padding: 16px; border-left: 3px solid var(--primary); margin-bottom: 24px; }
.client-meta-row { font-size: 13px; color: #374151; line-height: 1.5; margin-bottom: 4px; }
.client-meta-placeholder { font-size: 13px; color: #9ca3af; text-align: center; font-style: italic; padding: 4px 0; }
.scope-breakdown-title { font-size: 11px; font-weight: 700; text-transform: uppercase; color: #6b7280; letter-spacing: 0.75px; margin-bottom: 12px; }

/* Invoice Rows Mapping Fields */
.item-calculation-row { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid #F3F4F6; box-sizing: border-box; }
.highlight-base-row { background-color: #F8FAFC; padding: 12px 14px; border-radius: 6px; border-bottom: none; margin-bottom: 12px; }
.item-description-block { display: flex; flex-direction: column; gap: 2px; max-width: 75%; }
.item-main-title { font-size: 13px; font-weight: 600; color: #1f2937; }
.item-sub-description { font-size: 11px; color: #6b7280; line-height: 1.4; }
.item-monetary-value { font-size: 13px; font-weight: 700; color: #111827; white-space: nowrap; }
.subtotal-dashed-divider { margin: 20px 0; border-bottom: 2px dashed #E5E7EB; }

/* Comprehensive Pricing Component Box Accent (Matches the warm panel tone from reference images) */
.aggregate-valuation-badge { text-align: center; background-color: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 22px; margin-bottom: 24px; }
.aggregated-cost-display { font-size: 32px; font-weight: 700; color: #111827; letter-spacing: -0.5px; }
.aggregated-cost-caption { font-size: 11px; color: #6b7280; text-transform: uppercase; font-weight: 600; margin-top: 6px; letter-spacing: 0.5px; }

/* Operational Metric Milestone Badges Layout */
.delivery-metrics-tile-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }
.metric-data-tile { background-color: #ffffff; border: 1px solid #E5E7EB; border-radius: 6px; padding: 12px; display: flex; flex-direction: column; gap: 4px; }
.tile-header-label { font-size: 10px; text-transform: uppercase; color: #6b7280; font-weight: 600; letter-spacing: 0.5px; }
.tile-output-value { font-size: 13px; font-weight: 600; color: #111827; }

/* Clauses Section */
.pdf-legal-clauses-block { border-top: 1px dashed #E5E7EB; padding-top: 20px; margin-bottom: 12px; }
.legal-block-title { font-size: 11px; font-weight: 700; color: #374151; margin: 0 0 10px 0; text-transform: uppercase; }
.legal-bullets-list { margin: 0; padding-left: 16px; }
.legal-bullets-list li { font-size: 11px; color: #6b7280; line-height: 1.5; margin-bottom: 6px; }

/* Sidebar Workspace Actions Elements */
.interactive-action-group { display: flex; flex-direction: column; gap: 12px; }
.action-submit-trigger { width: 100%; background: var(--gradient-primary); color: var(--text-white); border: none; padding: 16px; font-size: 14px; font-weight: 600; border-radius: var(--radius-sm); cursor: pointer; transition: var(--transition); box-shadow: 0 4px 14px rgba(112, 147, 193, 0.3); }
.action-submit-trigger:hover { box-shadow: 0 6px 20px rgba(112, 147, 193, 0.45); transform: translateY(-2px); }
.action-print-trigger { width: 100%; background-color: rgba(255, 255, 255, 0.45); color: var(--text-dark); border: 1px solid var(--border); padding: 16px; font-size: 14px; font-weight: 600; border-radius: var(--radius-sm); cursor: pointer; transition: var(--transition); backdrop-filter: blur(8px); }
.action-print-trigger:hover { background-color: rgba(255, 255, 255, 0.7); border-color: var(--primary); transform: translateY(-2px); }

/* Accordion Presentation Formats */
.accordion-faq-section { background-color: #F7F5F0; padding: 75px 0; border-top: 1px solid #EAE6DF; margin-top: 60px; }
.faq-container { max-width: 680px; margin: 0 auto; padding: 0 24px; text-align: center; }
.faq-pre-title { font-size: 11px; font-weight: 600; text-transform: uppercase; color: #5279A6; letter-spacing: 1px; }
.faq-main-title { font-size: 28px; font-weight: 700; color: #111827; margin: 8px 0 32px 0; }
.faq-accordion-stack { display: flex; flex-direction: column; gap: 12px; text-align: left; }
.accordion-item-box { background-color: #ffffff; border: 1px solid #EAE6DF; border-radius: 6px; padding: 20px 24px; }
.accordion-trigger { display: flex; justify-content: space-between; align-items: center; font-size: 14px; font-weight: 600; color: #111827; }
.plus-icon { color: #5279A6; font-size: 16px; }

.global-footer-block { background-color: #111827; padding: 30px 0; }
.footer-container { max-width: 1200px; margin: 0 auto; padding: 0 24px; text-align: center; }
.footer-copyright-text { font-size: 12px; color: #9ca3af; margin: 0; }

/* ==========================================================================
   PRODUCTION PRINT COMPILER ARCHITECTURE OVERRIDES (Resolves Blank Output Bug)
   ========================================================================== */

/* Keep headers and document footer maps hidden cleanly on dynamic application layouts */
.pdf-document-header, .proposal-footer {
    display: none;
    visibility: hidden;
    opacity: 0;
}

/* Hard structural injection rule passes executed during async HTML2PDF rendering runtime pipelines */
.html2pdf-printing-active .pdf-document-header {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    border-bottom: 2px solid #5279A6;
    padding-bottom: 14px;
    margin-bottom: 24px;
}

.html2pdf-printing-active .pdf-branding-row {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
}

.html2pdf-printing-active .pdf-brand-title {
    font-size: 22px !important;
    font-weight: 700 !important;
    color: #111827 !important;
    margin: 0 !important;
    letter-spacing: -0.5px;
}

.html2pdf-printing-active .pdf-brand-subtitle {
    font-size: 12px !important;
    color: #6b7280 !important;
    margin: 2px 0 0 0 !important;
}

.html2pdf-printing-active .pdf-doc-badge {
    font-size: 10px !important;
    font-weight: 600 !important;
    text-transform: uppercase !important;
    letter-spacing: 1px !important;
    background-color: #F0F4F8 !important;
    color: #5279A6 !important;
    padding: 6px 12px !important;
    border-radius: 4px !important;
}

.html2pdf-printing-active .pdf-header-hairline {
    margin-top: 8px;
    height: 1px;
    background-color: #E5E7EB;
}

.html2pdf-printing-active .proposal-footer {
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
    justify-content: space-between !important;
    align-items: center !important;
    border-top: 1px solid #E5E7EB;
    padding-top: 14px;
    margin-top: 30px;
    font-size: 11px !important;
    color: #9ca3af !important;
}

/* Normalizes the document boundary properties when printing occurs */
.html2pdf-printing-active {
    width: 100% !important;
    max-width: 100% !important;
    padding: 10px !important;
    box-shadow: none !important;
    border: none !important;
    background: #ffffff !important;
}

.html2pdf-printing-active .item-calculation-row,
.html2pdf-printing-active .pdf-legal-clauses-block,
.html2pdf-printing-active .aggregate-valuation-badge {
    page-break-inside: avoid !important;
}
/* ==========================================================================
   EXPANDED ACCORDION INTERFACE COMPONENT DEFINITIONS
   ========================================================================== */

.accordion-faq-section { 
    background-color: #F7F5F0; /* Soft warm background palette match */
    padding: 80px 0; 
    border-top: 1px solid #EAE6DF; 
    margin-top: 60px; 
}

.faq-container { 
    max-width: 720px; 
    margin: 0 auto; 
    padding: 0 24px; 
}

.faq-pre-title { 
    font-size: 11px; 
    font-weight: 600; 
    text-transform: uppercase; 
    color: #5279A6; 
    letter-spacing: 1px; 
    display: block;
    text-align: center;
    margin-bottom: 8px;
}

.faq-main-title { 
    font-size: 28px; 
    font-weight: 700; 
    color: #111827; 
    margin: 0 0 36px 0; 
    letter-spacing: -0.5px;
    text-align: center;
}

.faq-accordion-stack { 
    display: flex; 
    flex-direction: column; 
    gap: 14px; 
    text-align: left; 
}

.accordion-item-box { 
    background-color: #ffffff; 
    border: 1px solid #EAE6DF; 
    border-radius: 8px; 
    overflow: hidden;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.accordion-item-box:hover {
    border-color: #D1D5DB;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.02);
}

/* Accessible Unstyled Reset for Button Triggers */
.accordion-trigger { 
    width: 100%;
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    background: none;
    border: none;
    padding: 22px 26px;
    font-family: 'Inter', sans-serif;
    font-size: 15px; 
    font-weight: 600; 
    color: #111827; 
    text-align: left;
    cursor: pointer;
    outline: none;
}

.plus-icon { 
    color: #5279A6; 
    font-size: 20px; 
    font-weight: 400;
    line-height: 1;
    margin-left: 20px;
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-block;
    user-select: none;
}

/* Smooth Hardware-Accelerated Max-Height Animation Wrapper */
.accordion-content-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.accordion-inner-text {
    padding: 0 26px 22px 26px;
    font-size: 14px;
    color: #4b5563;
    line-height: 1.6;
}

/* ==========================================================================
   ACTIVE ACCORDION STATE MODIFIERS
   ========================================================================== */

.accordion-item-box.is-expanded {
    border-color: #5279A6;
}

.accordion-item-box.is-expanded .plus-icon {
    transform: rotate(45deg);
    color: #111827;
}

/* ==========================================================
   RESPONSIVE MOBILE STYLES (320px–768px)
   ========================================================== */

@media (max-width: 768px) {
    .estimator-workspace {
        padding: 40px 0;
    }
    
    .grid-layout {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .card-shadow,
    .proposal-document-card {
        padding: 24px;
    }
    
    .input-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .timeline-step {
        width: 28px;
        height: 28px;
        font-size: 11px;
    }
    
    .main-title {
        font-size: 26px;
    }
    
    .main-subtitle {
        font-size: 14px;
    }

    .delivery-metrics-tile-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .accordion-trigger {
        padding: 16px 20px;
        font-size: 14px;
    }
    
    .accordion-inner-text {
        padding: 0 20px 16px 20px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .card-shadow,
    .proposal-document-card {
        padding: 16px;
    }
    
    .timeline-step {
        width: 22px;
        height: 22px;
        font-size: 9px;
    }
    
    .timeline-progress {
        margin-bottom: 30px;
    }
    
    .step-heading {
        font-size: 16px;
        margin-bottom: 20px;
    }
    
    .control-btn {
        padding: 10px 16px;
        font-size: 13px;
    }
    
    .aggregated-cost-display {
        font-size: 24px;
    }
    
    .item-calculation-row {
        padding: 10px 0;
    }
}