:root {
    --sage-darkest: #2C352D;
    --sage-dark: #4B5E4D;
    --sage-primary: #7A907C;
    --sage-light: #A3B19B;
    --sage-pale: #D1D9CD;
    --sage-bg: #F4F6F4;
    --white: #FFFFFF;
    
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Inter', sans-serif;
    
    --rhythm-base: 1rem;
    --rhythm-lg: 4rem;
    --rhythm-xl: 8rem;
}

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

body {
    font-family: var(--font-sans);
    color: var(--sage-darkest);
    background-color: var(--sage-bg);
    line-height: 1.6;
    overflow-x: hidden;
}

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

h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.2;
    color: var(--sage-darkest);
}

a {
    color: var(--sage-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--sage-dark);
}

/* Header */
.vektor-masthead {
    background-color: var(--white);
    border-bottom: 1px solid var(--sage-pale);
    position: sticky;
    top: 0;
    z-index: 100;
}

.masthead-bound {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.2rem 4vw;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-mark {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    letter-spacing: 1px;
    font-size: 1.1rem;
    color: var(--sage-darkest);
}

.brand-mark svg {
    color: var(--sage-primary);
}

.masthead-nav {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.masthead-nav a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--sage-dark);
}

.masthead-nav a:hover {
    color: var(--sage-primary);
}

.masthead-nav .action-link {
    background-color: var(--sage-darkest);
    color: var(--white);
    padding: 0.6rem 1.4rem;
    border-radius: 2px;
}

.masthead-nav .action-link:hover {
    background-color: var(--sage-primary);
}

/* Hero - Asymmetric Grid */
.matrix-hero {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--rhythm-xl) 4vw var(--rhythm-lg);
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3rem;
    align-items: center;
}

.hero-text-node {
    padding-right: 2rem;
    z-index: 2;
}

.technical-badge {
    display: inline-block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--sage-dark);
    border-bottom: 1px solid var(--sage-primary);
    margin-bottom: 1.5rem;
}

.primary-thesis {
    font-size: 4.5rem;
    margin-bottom: 1.5rem;
}

.thesis-support {
    font-size: 1.25rem;
    color: var(--sage-dark);
    margin-bottom: 2.5rem;
    max-width: 90%;
}

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

.primary-trigger {
    background-color: var(--sage-primary);
    color: var(--white);
    padding: 1rem 2rem;
    font-weight: 600;
    border-radius: 2px;
}

.primary-trigger:hover {
    background-color: var(--sage-dark);
    color: var(--white);
}

.secondary-trigger {
    color: var(--sage-darkest);
    font-weight: 600;
    border-bottom: 2px solid transparent;
}

.secondary-trigger:hover {
    border-bottom-color: var(--sage-primary);
}

.hero-visual-node {
    position: relative;
    transform: translateY(-2rem);
}

.visual-offset-frame {
    background-color: var(--sage-pale);
    padding: 1rem 1rem 3rem 3rem;
}

/* About - Deep Content */
.corp-dossier {
    background-color: var(--white);
    padding: var(--rhythm-xl) 4vw;
}

.dossier-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: row-reverse;
    gap: 6rem;
    align-items: center;
}

.dossier-visual {
    flex: 1;
    position: relative;
}

.data-overlay {
    position: absolute;
    bottom: -2rem;
    left: -3rem;
    background-color: var(--sage-darkest);
    color: var(--white);
    padding: 2rem;
    border-left: 4px solid var(--sage-primary);
}

.data-metric {
    display: block;
    font-family: var(--font-serif);
    font-size: 3rem;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.data-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--sage-pale);
}

.dossier-content {
    flex: 1.2;
}

.section-thesis {
    font-size: 3rem;
    margin-bottom: 2rem;
}

.dossier-content p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    color: var(--sage-dark);
}

.inline-text-link {
    text-decoration: underline;
    text-underline-offset: 4px;
    font-weight: 500;
}

.execution-methodology {
    margin-top: 3rem;
    background-color: var(--sage-bg);
    padding: 2.5rem;
    border-left: 2px solid var(--sage-primary);
}

.execution-methodology h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.method-steps {
    list-style: none;
    counter-reset: my-counter;
}

.method-steps li {
    counter-increment: my-counter;
    margin-bottom: 1rem;
    padding-left: 2.5rem;
    position: relative;
}

.method-steps li::before {
    content: "0" counter(my-counter);
    position: absolute;
    left: 0;
    top: 0;
    font-family: var(--font-serif);
    font-weight: 700;
    color: var(--sage-primary);
}

/* Services / Capabilities */
.service-matrix {
    padding: var(--rhythm-xl) 4vw;
    max-width: 1200px;
    margin: 0 auto;
}

.matrix-header {
    max-width: 700px;
    margin: 0 auto 4rem;
}

.text-center {
    text-align: center;
}

.sub-thesis {
    font-size: 1.2rem;
    color: var(--sage-dark);
    margin-top: 1rem;
}

.interactive-tabs {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.tab-navigation {
    display: flex;
    gap: 1rem;
    justify-content: center;
    border-bottom: 2px solid var(--sage-pale);
    padding-bottom: 1rem;
}

.tab-trigger {
    background: none;
    border: none;
    font-family: var(--font-sans);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--sage-light);
    cursor: pointer;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease;
}

.tab-trigger:hover {
    color: var(--sage-dark);
}

.tab-trigger.active-tab {
    color: var(--sage-darkest);
    position: relative;
}

.tab-trigger.active-tab::after {
    content: '';
    position: absolute;
    bottom: -1.2rem;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--sage-primary);
}

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

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

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

.panel-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    background-color: var(--white);
    padding: 3rem;
    box-shadow: 0 10px 30px rgba(44, 53, 45, 0.05);
}

.panel-text h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

.panel-text p {
    font-size: 1.1rem;
    color: var(--sage-dark);
    margin-bottom: 2rem;
}

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

.benefit-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
    color: var(--sage-darkest);
}

.benefit-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--sage-primary);
    font-weight: bold;
}

/* Testimonials */
.client-echoes {
    background-color: var(--sage-darkest);
    color: var(--white);
    padding: var(--rhythm-xl) 4vw;
}

.client-echoes .section-thesis {
    color: var(--white);
    text-align: center;
    margin-bottom: 5rem;
}

.echo-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.echo-card {
    background-color: rgba(255, 255, 255, 0.05);
    padding: 3rem 2rem;
    border-top: 2px solid var(--sage-primary);
}

.echo-card.offset-up {
    transform: translateY(-2rem);
}

.echo-card.offset-down {
    transform: translateY(2rem);
}

.echo-quote {
    font-style: italic;
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: var(--sage-pale);
    line-height: 1.8;
}

.echo-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.echo-author img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
}

.author-details strong {
    display: block;
    font-size: 1rem;
    color: var(--white);
}

.author-details span {
    font-size: 0.85rem;
    color: var(--sage-light);
}

/* Contact */
.engagement-form-section {
    padding: var(--rhythm-xl) 4vw;
    background-color: var(--white);
}

.form-wrapper {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
}

.form-context p {
    font-size: 1.1rem;
    color: var(--sage-dark);
    margin-bottom: 3rem;
}

.micro-faq {
    background-color: var(--sage-bg);
    padding: 2rem;
    border-left: 2px solid var(--sage-light);
}

.micro-faq strong {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--font-serif);
    font-size: 1.2rem;
}

.micro-faq p {
    margin-bottom: 0;
    font-size: 0.95rem;
}

.vektor-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.input-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--sage-darkest);
}

.input-node {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--sage-pale);
    background-color: var(--sage-bg);
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.input-node:focus {
    outline: none;
    border-color: var(--sage-primary);
}

.text-area-node {
    resize: vertical;
}

.submit-node {
    background-color: var(--sage-darkest);
    color: var(--white);
    border: none;
    padding: 1.2rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
    margin-top: 1rem;
}

.submit-node:hover {
    background-color: var(--sage-primary);
}

.tiny-disclaimer {
    font-size: 0.75rem;
    color: var(--sage-light);
    text-align: center;
}

/* Footer */
.vektor-base {
    background-color: var(--sage-bg);
    padding: 5rem 4vw 2rem;
    border-top: 1px solid var(--sage-pale);
}

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

.brand-text {
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 1rem;
}

.base-desc {
    color: var(--sage-dark);
    max-width: 300px;
}

.vektor-base h4 {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
    color: var(--sage-darkest);
}

.base-contact address,
.base-links a,
.base-legal a {
    font-style: normal;
    display: block;
    color: var(--sage-dark);
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.base-links a:hover,
.base-legal a:hover {
    color: var(--sage-primary);
}

.base-bottom {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--sage-pale);
    font-size: 0.85rem;
    color: var(--sage-light);
}

/* Responsive Rhythm Leakage & Adjustments */
@media (max-width: 1024px) {
    .matrix-hero {
        grid-template-columns: 1fr;
        padding: var(--rhythm-lg) 4vw;
    }
    .hero-text-node {
        padding-right: 0;
    }
    .visual-offset-frame {
        padding: 1rem;
    }
    .primary-thesis {
        font-size: 3.5rem;
    }
    .dossier-wrapper {
        flex-direction: column;
        gap: 4rem;
    }
    .data-overlay {
        left: 0;
        bottom: 0;
        width: 100%;
        text-align: center;
        border-left: none;
        border-top: 4px solid var(--sage-primary);
    }
    .panel-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .echo-grid {
        grid-template-columns: 1fr;
    }
    .echo-card.offset-up, .echo-card.offset-down {
        transform: none;
    }
    .form-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .base-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .masthead-nav {
        display: none; /* Simplification for mobile */
    }
    .primary-thesis {
        font-size: 2.8rem;
    }
    .section-thesis {
        font-size: 2.2rem;
    }
    .tab-navigation {
        flex-direction: column;
        align-items: center;
    }
    .base-grid {
        grid-template-columns: 1fr;
    }
    .execution-methodology {
        padding: 1.5rem;
    }
}