:root {
    --ledger-ink: #0D1B2A;
    --peso-teal: #1B998B;
    --blue-light: #5DC3CF;
    --balance-sheet: #FFF8E7;
    --alert-red: #E63946;
    --forecast-amber: #FFB703;
    --slate: #778DA9;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Work Sans', -apple-system, sans-serif;
    color: var(--ledger-ink);
    line-height: 1.6;
    background: var(--balance-sheet);
}

/* Header */
header {
    background: var(--ledger-ink);
    color: var(--balance-sheet);
    padding: 1.2rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 3px solid var(--peso-teal);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 100px;
    width: auto;
    display: block;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2.5rem;
}

nav a {
    color: var(--balance-sheet);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.2s;
}

nav a:hover {
    color: var(--blue-light);
}

/* Hero Section with Ledger */
.hero {
    background: var(--ledger-ink);
    color: var(--balance-sheet);
    padding: 140px 2rem 60px;
    border-bottom: 3px solid var(--blue-light);
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
}

.hero h1 {
    font-family: 'Archivo Black', sans-serif;
    font-size: 4rem;
    margin-bottom: 1rem;
    line-height: 1;
    letter-spacing: -0.03em;
}

.hero .tagline {
    font-size: 1.4rem;
    margin-bottom: 3rem;
    color: var(--slate);
    font-weight: 400;
}

/* Animated Ledger - Signature Element */
.ledger-demo {
    background: var(--balance-sheet);
    border: 2px solid var(--ledger-ink);
    padding: 0;
    margin: 3rem 0;
    max-width: 900px;
    font-family: 'JetBrains Mono', monospace;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
    transition: all 0.3s ease;
}

.ledger-demo:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 70px rgba(0,0,0,0.5);
}

.ledger-header {
    background: var(--ledger-ink);
    color: var(--balance-sheet);
    padding: 1rem 1.5rem;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    border-bottom: 2px solid var(--blue-light);
}

.ledger-table {
    width: 100%;
    border-collapse: collapse;
}

.ledger-table thead {
    background: var(--ledger-ink);
    color: var(--balance-sheet);
}

.ledger-table th {
    padding: 1rem;
    text-align: left;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    border-right: 1px solid var(--slate);
}

.ledger-table th:last-child {
    border-right: none;
}

.ledger-table td {
    padding: 1rem;
    border-bottom: 1px solid #E0D5C7;
    border-right: 1px solid #E0D5C7;
    font-size: 0.9rem;
    color: var(--ledger-ink);
}

.ledger-table td:last-child {
    border-right: none;
}

.ledger-table tbody tr {
    transition: all 0.3s ease;
}

.ledger-table tbody tr:hover {
    background: #F5EFE6;
    transform: scale(1.02);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.concept-col {
    font-weight: 600;
    width: 35%;
}

.actual-col, .predicted-col {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    width: 20%;
    text-align: right;
}

.change-col {
    font-weight: 500;
    width: 25%;
    font-size: 0.85rem;
}

.positive {
    color: var(--blue-light);
}

.warning {
    color: var(--forecast-amber);
}

.loading {
    color: var(--slate);
    font-style: italic;
    opacity: 0.6;
}

.calculating {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-on-scroll {
    opacity: 0;
}

.animate-on-scroll.animated {
    animation: fadeInUp 0.8s ease-out forwards;
}

.animate-left {
    opacity: 0;
}

.animate-left.animated {
    animation: fadeInLeft 0.8s ease-out forwards;
}

.animate-right {
    opacity: 0;
}

.animate-right.animated {
    animation: fadeInRight 0.8s ease-out forwards;
}

.animate-scale {
    opacity: 0;
}

.animate-scale.animated {
    animation: scaleIn 0.6s ease-out forwards;
}

.ledger-footer {
    padding: 1.5rem;
    background: #F5EFE6;
    border-top: 2px solid var(--ledger-ink);
    font-size: 0.85rem;
    color: var(--slate);
}

/* CTA Buttons */
.hero .cta-buttons {
    position: relative;
    z-index: 3;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 3rem;
}

.btn {
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border: 2px solid;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-block;
    font-family: 'Work Sans', sans-serif;
}

.btn-primary {
    background: var(--blue-light);
    color: var(--balance-sheet);
    border-color: var(--blue-light);
}

.btn-primary:hover {
    background: var(--blue-light);
    border-color: var(--blue-light);
}

.btn-secondary {
    background: transparent;
    color: var(--balance-sheet);
    border-color: var(--balance-sheet);
}

.btn-secondary:hover {
    background: var(--balance-sheet);
    color: var(--ledger-ink);
}

/* Stats Bar */
.stats {
    background: var(--balance-sheet);
    padding: 4rem 2rem;
    border-bottom: 2px solid var(--ledger-ink);
    position: relative;
    z-index: 1;
}

.stats-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
}

.stat-item {
    text-align: center;
    padding: 2rem 0;
    border-right: 1px solid var(--slate);
    transition: all 0.3s ease;
    cursor: default;
}

.stat-item:last-child {
    border-right: none;
}

.stat-item:hover {
    transform: scale(1.05);
}

.stat-number {
    font-family: 'JetBrains Mono', monospace;
    font-size: 3rem;
    font-weight: 700;
    color: var(--blue-light);
    display: block;
    margin-bottom: 0.5rem;
    transition: all 0.3s ease;
}

.stat-item:hover .stat-number {
    color: var(--ledger-ink);
    transform: scale(1.1);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--slate);
    font-weight: 500;
    transition: all 0.3s ease;
}

.stat-item:hover .stat-label {
    color: var(--ledger-ink);
}

/* Features Section */
.features {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    margin-bottom: 4rem;
}

.section-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.section-description {
    font-size: 1.1rem;
    color: var(--slate);
    max-width: 700px;
}

.features-list {
    display: grid;
    gap: 0;
}

.feature-row {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 3rem;
    padding: 3rem 2rem;
    border-bottom: 1px solid #E0D5C7;
    align-items: start;
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border-left: 4px solid transparent;
}

.feature-row:last-child {
    border-bottom: none;
}

.feature-row:hover {
    background: white;
    border-left-color: var(--blue-light);
    padding-left: 3rem;
    transform: translateX(10px);
    box-shadow: -10px 0 30px rgba(0,0,0,0.05);
}

.feature-row::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(90deg, rgba(93, 195, 207, 0.05) 0%, transparent 100%);
    transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: -1;
}

.feature-row:hover::before {
    width: 100%;
}

.feature-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--slate);
    letter-spacing: 0.1em;
    font-weight: 700;
    transition: all 0.3s ease;
}

.feature-row:hover .feature-label {
    color: var(--blue-light);
    transform: translateX(5px);
}

.feature-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: 1.6rem;
    margin-bottom: 1rem;
    color: var(--ledger-ink);
    line-height: 1.2;
    transition: all 0.3s ease;
}

.feature-row:hover .feature-title {
    color: var(--blue-light);
}

.feature-description {
    font-size: 1.05rem;
    color: var(--slate);
    line-height: 1.7;
    transition: all 0.3s ease;
}

.feature-row:hover .feature-description {
    color: var(--ledger-ink);
}

/* Case Study Section */
.case-study {
    background: var(--balance-sheet);
    padding: 5rem 2rem;
    border-top: 2px solid var(--ledger-ink);
    border-bottom: 2px solid var(--ledger-ink);
}

.case-study-container {
    max-width: 1200px;
    margin: 0 auto;
}

.case-header {
    text-align: center;
    margin-bottom: 4rem;
}

.case-company {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: var(--slate);
    margin-bottom: 1rem;
}

.case-quote {
    font-size: 1.8rem;
    line-height: 1.4;
    color: var(--ledger-ink);
    margin-bottom: 1rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.case-attribution {
    font-size: 1rem;
    color: var(--slate);
}

.comparison-controls {
    display: flex;
    justify-content: center;
    gap: 0;
    margin-bottom: 3rem;
    border: 2px solid var(--ledger-ink);
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.toggle-btn {
    padding: 1rem 2.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    background: transparent;
    color: var(--ledger-ink);
    border: none;
    cursor: pointer;
    transition: all 0.3s;
}

.toggle-btn.active {
    background: var(--ledger-ink);
    color: var(--balance-sheet);
}

.toggle-btn:not(.active):hover {
    background: rgba(13, 27, 42, 0.1);
}

.chart-container {
    background: white;
    border: 2px solid var(--ledger-ink);
    padding: 2rem;
    margin-bottom: 3rem;
    transition: all 0.3s ease;
}

.chart-container:hover {
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--blue-light);
}

.chart-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: var(--slate);
}

.chart-period {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--ledger-ink);
    font-weight: 700;
}

.chart-canvas {
    position: relative;
    height: 400px;
}

.bar-chart {
    display: flex;
    gap: 4rem;
    height: 100%;
    align-items: flex-end;
    padding: 2rem 0;
}

.bar-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.bar-wrapper {
    width: 100%;
    height: 300px;
    display: flex;
    align-items: flex-end;
    margin-bottom: 1rem;
    position: relative;
}

.bar {
    width: 100%;
    background: var(--blue-light);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 1rem;
}

.bar.negative {
    background: var(--alert-red);
}

.bar-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
}

.bar-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ledger-ink);
    text-align: center;
    letter-spacing: 0.05em;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.metric-card {
    background: white;
    border: 2px solid var(--ledger-ink);
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: default;
}

.metric-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
    border-color: var(--blue-light);
}

.metric-label {
    font-size: 0.85rem;
    color: var(--slate);
    margin-bottom: 0.8rem;
    letter-spacing: 0.05em;
}

.metric-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--blue-light);
    margin-bottom: 0.5rem;
}

.metric-description {
    font-size: 0.9rem;
    color: var(--slate);
}

/* Argentine Focus Section */
.argentine-focus {
    background: var(--ledger-ink);
    color: var(--balance-sheet);
    padding: 5rem 2rem;
    border-top: 3px solid var(--blue-light);
    border-bottom: 3px solid var(--blue-light);
}

.argentine-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.compliance-list {
    list-style: none;
}

.compliance-item {
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--slate);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
    cursor: default;
    position: relative;
    padding-left: 0;
}

.compliance-item:last-child {
    border-bottom: none;
}

.compliance-item:hover {
    padding-left: 1rem;
    border-bottom-color: var(--blue-light);
}

.compliance-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 3px;
    height: 0;
    background: var(--blue-light);
    transition: height 0.3s ease;
}

.compliance-item:hover::before {
    height: 100%;
}

.check-icon {
    color: var(--blue-light);
    font-size: 1.5rem;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.compliance-item:hover .check-icon {
    transform: scale(1.2) rotate(360deg);
}

.compliance-text {
    font-size: 1.1rem;
    transition: all 0.3s ease;
}

.compliance-item:hover .compliance-text {
    color: var(--balance-sheet);
}

.regulatory-preview {
    background: var(--balance-sheet);
    color: var(--ledger-ink);
    padding: 2rem;
    border: 2px solid var(--blue-light);
    transition: all 0.3s ease;
}

.regulatory-preview:hover {
    box-shadow: 0 20px 40px rgba(27, 153, 139, 0.2);
    transform: translateY(-5px);
}

.regulatory-header {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
    color: var(--slate);
    transition: all 0.3s ease;
}

.regulatory-preview:hover .regulatory-header {
    color: var(--peso-teal);
}

.regulatory-item {
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #E0D5C7;
    transition: all 0.3s ease;
    cursor: default;
}

.regulatory-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.regulatory-item:hover {
    background: rgba(27, 153, 139, 0.05);
    padding: 1rem;
    margin: 0 -1rem 1.5rem -1rem;
    border-radius: 4px;
}

.regulatory-label {
    font-size: 0.8rem;
    color: var(--slate);
    margin-bottom: 0.3rem;
    transition: all 0.3s ease;
}

.regulatory-item:hover .regulatory-label {
    color: var(--peso-teal);
}

.regulatory-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--ledger-ink);
    transition: all 0.3s ease;
}

.regulatory-item:hover .regulatory-value {
    transform: translateX(5px);
}

.regulatory-status {
    font-size: 0.85rem;
    color: var(--peso-teal);
    margin-top: 0.3rem;
    transition: all 0.3s ease;
}

.regulatory-item:hover .regulatory-status {
    color: var(--ledger-ink);
}

/* CTA Section */
.cta-section {
    padding: 6rem 2rem;
    text-align: center;
    background: var(--balance-sheet);
}

.cta-section h2 {
    font-family: 'Archivo Black', sans-serif;
    font-size: 2.8rem;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.cta-section p {
    font-size: 1.2rem;
    color: var(--slate);
    margin-bottom: 2.5rem;
}

.cta-section .btn {
    font-size: 1.1rem;
    padding: 1.2rem 2.5rem;
}

.cta-section .btn-primary {
    background: var(--ledger-ink);
    border-color: var(--ledger-ink);
}

.cta-section .btn-primary:hover {
    background: transparent;
    color: var(--ledger-ink);
}

.cta-section .btn-secondary {
    background: transparent;
    color: var(--ledger-ink);
    border-color: var(--ledger-ink);
}

.cta-section .btn-secondary:hover {
    background: var(--ledger-ink);
    color: var(--balance-sheet);
}

/* Footer */
footer {
    background: var(--ledger-ink);
    color: var(--balance-sheet);
    padding: 3rem 2rem 2rem;
    border-top: 3px solid var(--peso-teal);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--slate);
}

.footer-section h3 {
    font-family: 'Archivo Black', sans-serif;
    margin-bottom: 1rem;
    font-size: 1rem;
    letter-spacing: 0.05em;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.7rem;
}

.footer-section a {
    color: var(--slate);
    text-decoration: none;
    transition: color 0.2s;
    font-size: 0.95rem;
}

.footer-section a:hover {
    color: var(--peso-teal);
}

.footer-bottom {
    text-align: center;
    color: var(--slate);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 968px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }

    .stat-item {
        border-right: none;
        border-bottom: 1px solid var(--slate);
    }

    .stat-item:nth-child(2n) {
        border-right: none;
    }

    .feature-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .argentine-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }

    nav ul {
        display: none;
    }

    .metrics-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .bar-chart {
        gap: 2rem;
    }

    .case-quote {
        font-size: 1.4rem;
    }
}

@media (max-width: 640px) {
    .stats-container {
        grid-template-columns: 1fr;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .ledger-table th,
    .ledger-table td {
        padding: 0.7rem 0.5rem;
        font-size: 0.75rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .toggle-btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.75rem;
    }

    .case-quote {
        font-size: 1.2rem;
    }

    .bar-chart {
        gap: 1rem;
    }

    .chart-canvas {
        height: 300px;
    }

    .bar-wrapper {
        height: 200px;
    }

    .bar-value {
        font-size: 0.9rem;
    }

    .bar-label {
        font-size: 0.7rem;
    }
}

@keyframes ripple {
    to {
        transform: translate(-50%, -50%) scale(10);
        opacity: 0;
    }
}

/* Contact page */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.contact-hero {
    background: var(--ledger-ink);
    color: var(--balance-sheet);
    padding: 140px 2rem 4rem;
    border-bottom: 3px solid var(--blue-light);
}

.contact-hero-content {
    max-width: 1200px;
    margin: 0 auto;
}

.contact-eyebrow {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--blue-light);
    margin-bottom: 1.25rem;
}

.contact-hero h1 {
    font-family: 'Archivo Black', sans-serif;
    font-size: clamp(2.4rem, 5vw, 3.75rem);
    line-height: 1;
    letter-spacing: -0.03em;
    margin-bottom: 1.25rem;
}

.contact-hero .tagline {
    font-size: 1.2rem;
    color: var(--slate);
    max-width: 38rem;
    font-weight: 400;
}

.contact-main {
    background: var(--balance-sheet);
    padding: 4rem 2rem 5rem;
    border-bottom: 2px solid var(--ledger-ink);
}

.contact-layout {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.9fr);
    gap: 3rem;
    align-items: start;
}

.contact-ledger {
    background: var(--balance-sheet);
    border: 2px solid var(--ledger-ink);
    box-shadow: 0 20px 50px rgba(13, 27, 42, 0.12);
    overflow: hidden;
    transition: box-shadow 0.35s ease, transform 0.35s ease;
}

.contact-ledger.is-submitted {
    border-color: var(--peso-teal);
    box-shadow: 0 24px 60px rgba(27, 153, 139, 0.18);
}

.contact-form {
    padding: 0;
}

.form-row {
    padding: 1.25rem 1.75rem;
    border-bottom: 1px solid #E0D5C7;
    animation: contactFieldIn 0.55s ease both;
}

.form-row:nth-child(2) { animation-delay: 0.05s; }
.form-row:nth-child(3) { animation-delay: 0.1s; }
.form-row:nth-child(4) { animation-delay: 0.15s; }
.form-row:nth-child(5) { animation-delay: 0.2s; }
.form-row:nth-child(6) { animation-delay: 0.25s; }

.form-row--split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    padding-bottom: 1.25rem;
}

.form-row-half {
    min-width: 0;
}

.contact-form label {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    margin-bottom: 0.65rem;
}

.field-code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--blue-light);
}

.field-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--slate);
}

.field-label em {
    font-style: normal;
    font-weight: 500;
    text-transform: none;
    letter-spacing: 0;
    color: var(--slate);
    opacity: 0.8;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    border-radius: 0;
    padding: 0.35rem 0 0.55rem;
    font-family: 'Work Sans', sans-serif;
    font-size: 1.05rem;
    color: var(--ledger-ink);
    outline: none;
    transition: border-color 0.2s ease, background 0.2s ease;
}

.contact-form textarea {
    resize: vertical;
    min-height: 6.5rem;
    line-height: 1.5;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: #B8A99A;
}

.contact-form input:hover,
.contact-form textarea:hover,
.contact-form select:hover {
    border-bottom-color: #D4C4B0;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
    border-bottom-color: var(--peso-teal);
    background: rgba(27, 153, 139, 0.04);
}

.contact-form input.is-invalid,
.contact-form textarea.is-invalid,
.contact-form select.is-invalid {
    border-bottom-color: var(--alert-red);
}

.contact-form input:focus-visible,
.contact-form textarea:focus-visible,
.contact-form select:focus-visible,
.contact-submit:focus-visible,
.contact-back:focus-visible {
    outline: 2px solid var(--blue-light);
    outline-offset: 3px;
}

.select-wrap {
    position: relative;
}

.select-wrap::after {
    content: '';
    position: absolute;
    right: 0.25rem;
    top: 50%;
    width: 0.45rem;
    height: 0.45rem;
    border-right: 2px solid var(--ledger-ink);
    border-bottom: 2px solid var(--ledger-ink);
    transform: translateY(-70%) rotate(45deg);
    pointer-events: none;
}

.contact-form select {
    appearance: none;
    cursor: pointer;
    padding-right: 1.5rem;
}

.field-error {
    margin-top: 0.45rem;
    font-size: 0.85rem;
    color: var(--alert-red);
}

.form-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 1.5rem 1.75rem;
    background: #F5EFE6;
    border-top: 2px solid var(--ledger-ink);
    flex-wrap: wrap;
}

.form-footnote {
    font-size: 0.85rem;
    color: var(--slate);
    max-width: 22rem;
    line-height: 1.45;
}

.contact-submit {
    background: var(--ledger-ink);
    color: var(--balance-sheet);
    border-color: var(--ledger-ink);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.contact-submit:hover {
    background: var(--peso-teal);
    border-color: var(--peso-teal);
    color: var(--balance-sheet);
}

.contact-success {
    padding: 3rem 2rem;
    text-align: left;
    animation: contactFieldIn 0.5s ease both;
}

.success-stamp {
    display: inline-block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    color: var(--peso-teal);
    border: 2px solid var(--peso-teal);
    padding: 0.4rem 0.75rem;
    margin-bottom: 1.5rem;
    transform: rotate(-2deg);
}

.contact-success h2 {
    font-family: 'Archivo Black', sans-serif;
    font-size: 2rem;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
    color: var(--ledger-ink);
}

.contact-success > p {
    color: var(--slate);
    font-size: 1.05rem;
    max-width: 28rem;
    margin-bottom: 2rem;
}

.success-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    padding: 1.25rem 0;
    margin-bottom: 2rem;
    border-top: 1px solid #E0D5C7;
    border-bottom: 1px solid #E0D5C7;
}

.success-meta dt {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--slate);
    margin-bottom: 0.35rem;
}

.success-meta dd {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--ledger-ink);
}

.success-status {
    color: var(--peso-teal);
}

.contact-back {
    background: transparent;
    color: var(--ledger-ink);
    border-color: var(--ledger-ink);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    letter-spacing: 0.04em;
}

.contact-back:hover {
    background: var(--ledger-ink);
    color: var(--balance-sheet);
}

.contact-aside {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    position: sticky;
    top: 8rem;
    align-self: start;
    z-index: 1;
}

.contact-info-panel {
    position: static;
}

.contact-info-panel .regulatory-value {
    overflow-wrap: anywhere;
    word-break: break-word;
}

.contact-info-panel .regulatory-item:hover {
    margin: 0 0 1.5rem;
    padding: 0 0 1.5rem;
    background: transparent;
}

.contact-info-panel .regulatory-item:hover .regulatory-value {
    transform: none;
}

.contact-info-panel .regulatory-item:last-child:hover {
    margin-bottom: 0;
    padding-bottom: 0;
}

.contact-aside-note {
    border: 2px solid var(--ledger-ink);
    background: white;
    padding: 1.5rem 1.75rem;
}

.contact-aside-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--slate);
    margin-bottom: 1rem;
}

.contact-aside-note ul {
    list-style: none;
}

.contact-aside-note li {
    position: relative;
    padding: 0.65rem 0 0.65rem 1.25rem;
    border-bottom: 1px solid #E0D5C7;
    color: var(--ledger-ink);
    font-size: 0.95rem;
}

.contact-aside-note li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.contact-aside-note li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--peso-teal);
    font-family: 'JetBrains Mono', monospace;
}

nav a[aria-current="page"] {
    color: var(--blue-light);
}

@keyframes contactFieldIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .form-row,
    .contact-success {
        animation: none;
    }

    .contact-ledger,
    .contact-submit,
    .contact-back {
        transition: none;
    }
}

@media (max-width: 968px) {
    .contact-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-aside {
        position: static;
    }

    .form-row--split {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .form-footer {
        flex-direction: column;
        align-items: stretch;
    }

    .contact-submit {
        width: 100%;
        text-align: center;
    }

    .success-meta {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .contact-hero {
        padding: 120px 1.25rem 3rem;
    }

    .contact-main {
        padding: 2.5rem 1.25rem 3.5rem;
    }

    .form-row,
    .form-footer,
    .contact-success {
        padding-left: 1.15rem;
        padding-right: 1.15rem;
    }
}

/* Security page */
.security-hero .ledger-demo {
    margin-top: 3rem;
    margin-bottom: 0;
}

.security-audit .security-status {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 700;
    color: var(--peso-teal);
    white-space: nowrap;
}

.security-pillars {
    background: var(--balance-sheet);
}

.security-compliance .regulatory-value {
    overflow-wrap: anywhere;
    word-break: break-word;
}

.security-practices {
    background: var(--balance-sheet);
    padding: 5rem 2rem;
    border-bottom: 2px solid var(--ledger-ink);
}

.security-practices-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.security-control-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
    border: 2px solid var(--ledger-ink);
    background: white;
}

.security-control-item {
    padding: 2rem 2rem 2.25rem;
    border-right: 1px solid #E0D5C7;
    border-bottom: 1px solid #E0D5C7;
    transition: background 0.25s ease, border-color 0.25s ease;
}

.security-control-item:nth-child(2n) {
    border-right: none;
}

.security-control-item:nth-last-child(-n+2) {
    border-bottom: none;
}

.security-control-item:hover {
    background: #FFFDF8;
}

.security-control-code {
    display: block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--blue-light);
    margin-bottom: 1rem;
}

.security-control-item h3 {
    font-family: 'Archivo Black', sans-serif;
    font-size: 1.35rem;
    letter-spacing: -0.02em;
    margin-bottom: 0.65rem;
    color: var(--ledger-ink);
}

.security-control-item p {
    color: var(--slate);
    font-size: 1rem;
    line-height: 1.55;
    max-width: 28rem;
}

@media (max-width: 968px) {
    .security-control-grid {
        grid-template-columns: 1fr;
    }

    .security-control-item {
        border-right: none;
    }

    .security-control-item:nth-last-child(-n+2) {
        border-bottom: 1px solid #E0D5C7;
    }

    .security-control-item:last-child {
        border-bottom: none;
    }
}

/* About & use cases pages */
.about-ledger {
    margin-top: 3rem;
    margin-bottom: 0;
}

.about-stats {
    border-top: 2px solid var(--ledger-ink);
}

.use-cases-intro {
    padding-bottom: 0;
}

.use-cases-intro .section-header {
    margin-bottom: 0;
}

.use-case-block {
    background: var(--balance-sheet);
    padding: 4rem 2rem;
    border-bottom: 2px solid #E0D5C7;
}

.use-case-block--alt {
    background: #FFFDF8;
}

.use-case-inner {
    max-width: 1200px;
    margin: 0 auto;
}

.use-case-title {
    font-family: 'Archivo Black', sans-serif;
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    letter-spacing: -0.02em;
    color: var(--ledger-ink);
    margin: 0.75rem 0 1rem;
    line-height: 1.1;
}

.use-case-lead {
    font-size: 1.15rem;
    color: var(--slate);
    max-width: 40rem;
    margin-bottom: 2.5rem;
    line-height: 1.55;
}

.use-case-ledger {
    max-width: 100%;
    margin: 0 0 2.5rem;
}

.use-case-metrics {
    margin-top: 0;
}

.use-case-split {
    align-items: start;
    gap: 3rem;
}

.use-case-split .features-list {
    min-width: 0;
}

.use-case-split .feature-row {
    padding-left: 0;
    padding-right: 0;
}

.use-case-split .feature-row:hover {
    padding-left: 1rem;
    transform: none;
    box-shadow: none;
}

.use-case-grid {
    margin-top: 0.5rem;
}

@media (max-width: 968px) {
    .use-case-block {
        padding: 3rem 1.25rem;
    }
}

/* Legal pages */
.legal-meta-ledger {
    margin-top: 3rem;
    margin-bottom: 0;
}

.legal-body {
    padding-top: 4rem;
}

.legal-body .feature-description a,
.regulatory-value a {
    color: var(--peso-teal);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.legal-body .feature-description a:hover,
.regulatory-value a:hover {
    color: var(--ledger-ink);
}

.legal-page .feature-label {
    color: var(--blue-light);
}

/* Back to top */
.back-to-top {
    position: fixed;
    right: 1.5rem;
    bottom: 1.5rem;
    z-index: 1100;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--ledger-ink);
    color: var(--balance-sheet);
    border: 2px solid var(--peso-teal);
    text-decoration: none;
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.25rem;
    font-weight: 700;
    line-height: 1;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(12px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease, background 0.2s ease;
}

.back-to-top.is-visible {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--peso-teal);
    color: var(--balance-sheet);
}

.back-to-top:focus-visible {
    outline: 2px solid var(--blue-light);
    outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
    .back-to-top {
        transition: none;
    }
}

@media (max-width: 640px) {
    .back-to-top {
        right: 1rem;
        bottom: 1rem;
        width: 2.75rem;
        height: 2.75rem;
    }
}