/* ---------- CSS Variables ---------- */
 :root {
     --primary: #12372a;
     --primary-dark: #0b241b;
     --accent: #2f6f55;
     --text: #17211c;
     --muted: #66736c;
     --border: #dde4df;
     --surface: #f6f8f7;
     --white: #ffffff;
     --dark: #101614;
     --shadow-soft: 0 8px 30px rgba(0, 0, 0, 0.06);
     --shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.10);
     --radius: 12px;
     --transition: 0.25s ease;
 }

 /* ---------- Base ---------- */
 body {
     font-family: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
     color: var(--text);
     background: var(--white);
     line-height: 1.7;
     -webkit-font-smoothing: antialiased;
 }

 a {
     color: var(--accent);
     text-decoration: none;
     transition: color var(--transition);
 }

 a:hover {
     color: var(--primary);
     text-decoration: underline;
 }

 /* ---------- Typography ---------- */
 h1,
 h2,
 h3,
 h4,
 h5,
 h6 {
     font-weight: 700;
     letter-spacing: -0.02em;
     color: var(--primary);
 }

 h1 {
     font-size: 2.8rem;
     line-height: 1.2;
 }

 h2 {
     font-size: 2.1rem;
     margin-bottom: 1.25rem;
 }

 h3 {
     font-size: 1.4rem;
     margin-bottom: 0.75rem;
 }

 @media (max-width: 576px) {
     h1 {
         font-size: 2.0rem;
     }

     h2 {
         font-size: 1.6rem;
     }

     h3 {
         font-size: 1.2rem;
     }
 }

 /* ---------- Buttons ---------- */
 .btn-primary-custom {
     background-color: var(--primary);
     border: 2px solid var(--primary);
     color: #fff;
     font-weight: 600;
     padding: 0.7rem 2rem;
     border-radius: 50px;
     transition: all var(--transition);
 }

 .btn-primary-custom:hover {
     background-color: var(--primary-dark);
     border-color: var(--primary-dark);
     color: #fff;
     transform: translateY(-2px);
     box-shadow: var(--shadow-hover);
 }

 .btn-outline-custom {
     background: transparent;
     border: 2px solid var(--accent);
     color: var(--accent);
     font-weight: 600;
     padding: 0.7rem 2rem;
     border-radius: 50px;
     transition: all var(--transition);
 }

 .btn-outline-custom:hover {
     background: var(--accent);
     color: #fff;
     transform: translateY(-2px);
     box-shadow: var(--shadow-hover);
 }

 .btn-accent {
     background-color: var(--accent);
     border: 2px solid var(--accent);
     color: #fff;
     font-weight: 600;
     padding: 0.7rem 2rem;
     border-radius: 50px;
     transition: all var(--transition);
 }

 .btn-accent:hover {
     background-color: var(--primary);
     border-color: var(--primary);
     color: #fff;
     transform: translateY(-2px);
     box-shadow: var(--shadow-hover);
 }

 /* ---------- Cards ---------- */
 .card-premium {
     background: var(--white);
     border: 1px solid var(--border);
     border-radius: var(--radius);
     box-shadow: var(--shadow-soft);
     transition: all var(--transition);
     height: 100%;
 }

 .card-premium:hover {
     box-shadow: var(--shadow-hover);
     transform: translateY(-4px);
 }

 .card-premium .card-body {
     padding: 1.75rem;
 }

 /* ---------- Quick Answer ---------- */
 .quick-answer-block {
     background: var(--surface);
     border-left: 5px solid var(--accent);
     border-radius: var(--radius);
     padding: 1.5rem 2rem;
 }

 /* ---------- Facts ---------- */
 .fact-item {
     background: var(--white);
     border: 1px solid var(--border);
     border-radius: var(--radius);
     padding: 1.25rem 1.5rem;
     text-align: center;
     height: 100%;
     transition: all var(--transition);
 }

 .fact-item:hover {
     box-shadow: var(--shadow-hover);
     transform: translateY(-3px);
 }

 .fact-item .fact-icon {
     font-size: 1.8rem;
     color: var(--accent);
     display: block;
     margin-bottom: 0.5rem;
 }

 .fact-item .fact-label {
     font-size: 0.85rem;
     text-transform: uppercase;
     letter-spacing: 0.05em;
     color: var(--muted);
     font-weight: 600;
 }

 .fact-item .fact-value {
     font-weight: 700;
     font-size: 1.1rem;
     color: var(--primary);
     margin-top: 0.2rem;
 }

 /* ---------- Domain/Tech Cards ---------- */
 .tech-card {
     background: var(--white);
     border: 1px solid var(--border);
     border-radius: var(--radius);
     padding: 1.25rem 1.5rem;
     text-align: center;
     height: 100%;
     transition: all var(--transition);
 }

 .tech-card:hover {
     box-shadow: var(--shadow-hover);
     transform: translateY(-4px);
     border-color: var(--accent);
 }

 .tech-card .tech-icon {
     font-size: 2rem;
     color: var(--accent);
     display: block;
     margin-bottom: 0.5rem;
 }

 .tech-card h4 {
     font-size: 1rem;
     font-weight: 600;
     margin-bottom: 0.25rem;
     color: var(--primary);
 }

 .tech-card p {
     font-size: 0.85rem;
     color: var(--muted);
     margin-bottom: 0;
 }

 /* ---------- Project Cards ---------- */
 .project-card {
     background: var(--white);
     border: 1px solid var(--border);
     border-radius: var(--radius);
     padding: 1.5rem;
     height: 100%;
     transition: all var(--transition);
 }

 .project-card:hover {
     box-shadow: var(--shadow-hover);
     transform: translateY(-4px);
     border-color: var(--accent);
 }

 .project-card .project-icon {
     font-size: 1.8rem;
     color: var(--accent);
     display: block;
     margin-bottom: 0.5rem;
 }

 .project-card h4 {
     font-size: 1.05rem;
     font-weight: 600;
     margin-bottom: 0.3rem;
     color: var(--primary);
 }

 .project-card p {
     font-size: 0.92rem;
     color: var(--muted);
     margin-bottom: 0;
 }

 /* ---------- Step/Workflow ---------- */
 .step-item {
     display: flex;
     align-items: flex-start;
     gap: 1rem;
     padding: 0.8rem 0;
     border-bottom: 1px solid var(--border);
 }

 .step-item:last-child {
     border-bottom: 0;
 }

 .step-number {
     flex: 0 0 40px;
     width: 40px;
     height: 40px;
     background: var(--primary);
     color: #fff;
     border-radius: 50%;
     display: flex;
     align-items: center;
     justify-content: center;
     font-weight: 700;
     font-size: 1rem;
 }

 .step-content h5 {
     font-weight: 600;
     margin-bottom: 0.1rem;
     font-size: 1rem;
     color: var(--primary);
 }

 .step-content p {
     color: var(--muted);
     margin-bottom: 0;
     font-size: 0.92rem;
 }

 /* ---------- Comparison Tables ---------- */
 .compare-table {
     border-radius: var(--radius);
     overflow: hidden;
     border: 1px solid var(--border);
 }

 .compare-table thead th {
     background: var(--primary);
     color: #fff;
     font-weight: 600;
     padding: 0.9rem 1.25rem;
     border: 0;
 }

 .compare-table tbody td {
     padding: 0.8rem 1.25rem;
     border-color: var(--border);
     vertical-align: middle;
 }

 .compare-table tbody tr:nth-child(even) {
     background: var(--surface);
 }

 .compare-table .check-icon {
     color: var(--accent);
     font-weight: 700;
 }

 /* ---------- FAQ ---------- */
 .faq-accordion .accordion-item {
     border: 1px solid var(--border);
     border-radius: var(--radius) !important;
     margin-bottom: 0.75rem;
     overflow: hidden;
 }

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

 .faq-accordion .accordion-button {
     font-weight: 600;
     color: var(--primary);
     background: var(--white);
     padding: 1.1rem 1.5rem;
     border: 0;
     box-shadow: none;
     font-size: 1rem;
 }

 .faq-accordion .accordion-button:not(.collapsed) {
     background: var(--surface);
     color: var(--primary);
     box-shadow: none;
 }

 .faq-accordion .accordion-button:focus {
     box-shadow: 0 0 0 3px rgba(47, 111, 85, 0.2);
     border-color: var(--accent);
 }

 .faq-accordion .accordion-body {
     padding: 1.25rem 1.5rem 1.5rem;
     background: var(--white);
     border-top: 1px solid var(--border);
 }

 /* ---------- Trust ---------- */
 .trust-badge {
     background: var(--surface);
     border-radius: var(--radius);
     padding: 1.5rem 2rem;
     border: 1px solid var(--border);
 }

 /* ---------- Footer ---------- */
 .footer-premium {
     background: var(--primary-dark);
     color: rgba(255, 255, 255, 0.75);
     padding: 3rem 0 2rem;
     margin-top: 3rem;
 }

 .footer-premium a {
     color: rgba(255, 255, 255, 0.7);
 }

 .footer-premium a:hover {
     color: #fff;
     text-decoration: underline;
 }

 .footer-premium h5 {
     color: #fff;
     font-weight: 600;
     margin-bottom: 1rem;
 }

 .footer-premium .footer-divider {
     border-color: rgba(255, 255, 255, 0.08);
     margin: 2rem 0 1.5rem;
 }

 /* ---------- Sticky Mobile CTA ---------- */
 .sticky-cta-mobile {
     display: none;
     position: fixed;
     bottom: 0;
     left: 0;
     right: 0;
     background: var(--white);
     padding: 0.75rem 1rem;
     box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
     z-index: 1040;
     border-top: 1px solid var(--border);
 }

 .sticky-cta-mobile .btn {
     width: 100%;
     font-size: 0.95rem;
     padding: 0.6rem;
 }

 @media (max-width: 576px) {
     .sticky-cta-mobile {
         display: block;
     }

     body {
         padding-bottom: 80px;
     }
 }

 /* ---------- Reduced Motion ---------- */
 @media (prefers-reduced-motion: reduce) {
     * {
         animation-duration: 0.01ms !important;
         transition-duration: 0.01ms !important;
     }

     .card-premium:hover,
     .tech-card:hover,
     .project-card:hover,
     .fact-item:hover,
     .btn-primary-custom:hover,
     .btn-outline-custom:hover,
     .btn-accent:hover {
         transform: none !important;
     }
 }

 /* ---------- Utilities ---------- */
 .bg-soft-surface {
     background: var(--surface);
 }

 .bg-soft-primary {
     background: #eaf1ed;
 }

 .text-accent {
     color: var(--accent);
 }

 .text-primary-dark {
     color: var(--primary);
 }

 .section-spacer {
     padding: 3.5rem 0;
 }

 .section-spacer-sm {
     padding: 2.5rem 0;
 }

 .shadow-soft {
     box-shadow: var(--shadow-soft);
 }

 .rounded-custom {
     border-radius: var(--radius);
 }

 /* ---------- Hero Chips ---------- */
 .hero-chip {
     display: inline-block;
     background: rgba(255, 255, 255, 0.85);
     backdrop-filter: blur(4px);
     border: 1px solid rgba(255, 255, 255, 0.3);
     border-radius: 50px;
     padding: 0.3rem 1rem;
     font-size: 0.8rem;
     font-weight: 500;
     color: var(--primary);
     box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
     animation: floatChip 6s ease-in-out infinite alternate;
 }

 .hero-chip:nth-child(2) {
     animation-delay: 1.2s;
 }

 .hero-chip:nth-child(3) {
     animation-delay: 2.4s;
 }

 .hero-chip:nth-child(4) {
     animation-delay: 3.6s;
 }


 /* ---------- Breadcrumb ---------- */
 .breadcrumb-custom {
     background: transparent;
     padding: 0.5rem 0 0;
     margin-bottom: 0;
 }

 .breadcrumb-custom .breadcrumb-item a {
     color: var(--muted);
     font-size: 0.9rem;
 }

 .breadcrumb-custom .breadcrumb-item a:hover {
     color: var(--accent);
 }

 .breadcrumb-custom .breadcrumb-item.active {
     color: var(--primary);
     font-weight: 500;
 }

 /* ---------- Navbar ---------- */
 .navbar-custom {
     background: var(--white);
     box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
 }

 .navbar-custom .navbar-brand {
     font-weight: 700;
     color: var(--primary);
 }

 .navbar-custom .navbar-nav .nav-link {
     color: var(--text);
     font-weight: 500;
     transition: color var(--transition);
 }

 .navbar-custom .navbar-nav .nav-link:hover {
     color: var(--accent);
 }

 .navbar-custom .navbar-toggler {
     border: none;
     padding: 0.25rem 0.5rem;
 }

 .navbar-custom .navbar-toggler:focus {
     box-shadow: 0 0 0 3px rgba(47, 111, 85, 0.2);
 }

 /* ---------- Hierarchy visual ---------- */
 .hierarchy-box {
     background: var(--white);
     border: 1px solid var(--border);
     border-radius: var(--radius);
     padding: 1.25rem;
     text-align: center;
 }

 .hierarchy-box .hier-item {
     padding: 0.4rem 0;
     font-weight: 500;
 }

 .hierarchy-box .hier-arrow {
     color: var(--muted);
     font-size: 1.2rem;
 }