:root {
    --slate-900: #0f172a;
    --slate-800: #1e293b;
    --slate-700: #334155;
    --slate-400: #94a3b8;
    --slate-200: #e2e8f0;
    --slate-50: #f8fafc;
    --tech-accent: #38bdf8;
    --tech-accent-hover: #0284c7;
    
    --font-main: 'Inter', sans-serif;
    --font-mono: 'Space Mono', monospace;
    
    --rhythm-base: 1rem;
    --rhythm-lg: 4rem;
    --rhythm-xl: 8vw;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--slate-50);
    color: var(--slate-800);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    width: 100%;
    height: auto;
    object-fit: cover;
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

/* Typography */
.section-header-mono {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    letter-spacing: 2px;
    color: var(--slate-400);
    margin-bottom: 2rem;
    text-transform: uppercase;
}

/* Header */
.topo-site-head {
    position: sticky;
    top: 0;
    background: rgba(248, 250, 252, 0.95);
    backdrop-filter: blur(8px);
    z-index: 100;
    border-bottom: 1px solid var(--slate-200);
}

.head-matrix {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-node {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.5px;
}

.brand-mark {
    font-family: var(--font-mono);
    background: var(--slate-900);
    color: var(--tech-accent);
    padding: 0.2rem 0.5rem;
    border-radius: 2px;
    font-size: 1rem;
}

.nav-array {
    display: flex;
    gap: 2rem;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.nav-array a:hover {
    color: var(--tech-accent);
}

.tech-action-btn {
    font-family: var(--font-mono);
    background: transparent;
    color: var(--slate-900);
    border: 1px solid var(--slate-900);
    padding: 0.5rem 1.2rem;
    text-transform: uppercase;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}

.tech-action-btn.primary-execute {
    background: var(--slate-900);
    color: var(--slate-50);
}

.tech-action-btn:hover {
    background: var(--tech-accent);
    color: var(--slate-900);
    border-color: var(--tech-accent);
}

/* Hero Sector */
.lidar-hero-sector {
    position: relative;
    padding: var(--rhythm-xl) 2rem;
    overflow: hidden;
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.abstract-geo-01 {
    position: absolute;
    width: 50vw;
    height: 50vw;
    background: var(--slate-200);
    opacity: 0.5;
    border-radius: 63% 37% 54% 46% / 43% 31% 69% 57%;
    top: -10%;
    right: -5%;
    z-index: -1;
}

.abstract-geo-02 {
    position: absolute;
    width: 30vw;
    height: 30vw;
    border: 2px solid var(--slate-300);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    bottom: 10%;
    left: -10%;
    z-index: -1;
}

.hero-data-wrapper {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    width: 100%;
}

.hero-primary-calc {
    font-size: clamp(3.5rem, 6vw, 6rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -2px;
    color: var(--slate-900);
    margin-bottom: 1.5rem;
}

.hero-sub-metric {
    font-size: 1.25rem;
    color: var(--slate-700);
    margin-bottom: 2.5rem;
    max-width: 80%;
}

.hero-action-cluster {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.mono-stat-badge {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--slate-400);
    border-left: 2px solid var(--tech-accent);
    padding-left: 0.75rem;
}

.hero-visual-node img {
    aspect-ratio: 4/3;
    border-radius: 4px;
    box-shadow: 20px 20px 0 -5px var(--slate-200);
}

/* Specs / About */
.firm-history-block {
    padding: var(--rhythm-lg) 2rem;
    background: var(--slate-900);
    color: var(--slate-200);
}

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

.specs-grid-layout {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 4rem;
    align-items: center;
}

.specs-text-payload p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--slate-300);
}

.specs-text-payload strong {
    color: var(--slate-50);
}

.highlight-metric {
    font-family: var(--font-mono);
    color: var(--tech-accent);
    font-size: 1.2rem;
}

.inline-data-link {
    color: var(--tech-accent);
    border-bottom: 1px dotted var(--tech-accent);
}

.inline-data-link:hover {
    color: var(--slate-50);
}

.specs-visual-payload img {
    aspect-ratio: 1/1;
    filter: grayscale(100%) contrast(1.2);
    border: 1px solid var(--slate-700);
}

/* Methodologies / Services */
.swale-engineering-grid {
    padding: var(--rhythm-xl) 2rem;
    background: var(--slate-50);
}

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

.tab-controls-array {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    border-bottom: 1px solid var(--slate-200);
    padding-bottom: 1rem;
    overflow-x: auto;
}

.tab-trigger {
    background: none;
    border: none;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--slate-400);
    cursor: pointer;
    padding: 0.5rem 1rem;
    white-space: nowrap;
    transition: color 0.3s;
}

.tab-trigger.is-active {
    color: var(--slate-900);
    font-weight: 700;
    position: relative;
}

.tab-trigger.is-active::after {
    content: '';
    position: absolute;
    bottom: -17px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--tech-accent);
}

.tab-panel {
    display: none;
    animation: fadeData 0.4s ease-in;
}

.tab-panel.is-active {
    display: block;
}

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

.panel-split {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: start;
}

.panel-data h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.panel-data p {
    color: var(--slate-700);
    margin-bottom: 1.5rem;
}

.tech-list {
    list-style: none;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--slate-800);
}

.tech-list li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.tech-list li::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--tech-accent);
}

.panel-split img {
    aspect-ratio: 16/9;
    border: 4px solid var(--slate-100);
}

/* Telemetry / Testimonials */
.client-feedback-node {
    padding: var(--rhythm-lg) 2rem;
    background: var(--slate-200);
}

.feedback-container {
    max-width: 1400px;
    margin: 0 auto;
}

.feedback-matrix {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.data-packet-review {
    background: var(--slate-50);
    padding: 2rem;
    border-top: 3px solid var(--slate-400);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.review-string {
    font-size: 1rem;
    font-style: italic;
    color: var(--slate-700);
    margin-bottom: 2rem;
}

.reviewer-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.reviewer-meta img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    filter: grayscale(100%);
}

.r-name {
    display: block;
    font-weight: 700;
    font-size: 0.9rem;
}

.r-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--slate-400);
}

/* Form */
.data-intake-form {
    padding: var(--rhythm-xl) 2rem;
}

.intake-container {
    max-width: 800px;
    margin: 0 auto;
}

.intake-header {
    margin-bottom: 3rem;
}

.tech-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.input-node {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.full-span {
    grid-column: 1 / -1;
}

.input-node label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--slate-700);
}

.input-node input, .input-node textarea {
    padding: 0.75rem;
    border: 1px solid var(--slate-300);
    background: var(--slate-50);
    font-family: var(--font-main);
    transition: border-color 0.2s;
}

.input-node input:focus, .input-node textarea:focus {
    outline: none;
    border-color: var(--tech-accent);
}

.form-action-row {
    align-items: flex-start;
}

/* Footer */
.topo-global-footer {
    background: var(--slate-900);
    color: var(--slate-400);
    padding: 4rem 2rem 2rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.footer-matrix {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.f-head {
    color: var(--slate-50);
    margin-bottom: 1.5rem;
    font-weight: 400;
}

.f-col {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.sys-info .brand-mark {
    display: inline-block;
    width: max-content;
    margin-bottom: 1rem;
}

.f-micro-noise {
    font-size: 0.7rem;
    opacity: 0.6;
    margin-top: 1rem;
    line-height: 1.4;
}

.f-col a:hover {
    color: var(--tech-accent);
}

.f-hours {
    margin-top: 1rem;
    color: var(--tech-accent);
}

.footer-sub-bar {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--slate-800);
    text-align: center;
    font-size: 0.75rem;
}

/* Responsive Rhythm Breakage */
@media (max-width: 1024px) {
    .hero-data-wrapper, .specs-grid-layout, .panel-split {
        grid-template-columns: 1fr;
    }
    .hero-primary-calc {
        font-size: 4rem;
    }
    .panel-split img {
        grid-row: 1;
    }
}

@media (max-width: 768px) {
    .nav-array {
        display: none; /* Simplified for mobile demo */
    }
    .tech-form-grid {
        grid-template-columns: 1fr;
    }
    .footer-matrix {
        grid-template-columns: 1fr;
    }
    .abstract-geo-01 {
        width: 80vw;
        height: 80vw;
    }
}