:root {
    --aura-black: #121212;
    --aura-white: #ffffff;
    --aura-gray-light: #f4f4f5;
    --aura-gray-mid: #a1a1aa;
    --aura-gray-dark: #27272a;
    --font-primary: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-primary);
    color: var(--aura-black);
    background-color: var(--aura-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
    opacity: 0.7;
}

.inline-text-link {
    text-decoration: underline;
    text-underline-offset: 4px;
    font-weight: 600;
}

/* Header */
.aura-topbar {
    position: sticky;
    top: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--aura-gray-light);
    z-index: 1000;
    padding: 1.2rem 4vw;
}

.aura-nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.aura-logo-mark {
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.5px;
}

.aura-logo-mark span {
    color: var(--aura-gray-mid);
    font-weight: 400;
}

.aura-navigation {
    display: flex;
    align-items: center;
    gap: 2rem;
    font-size: 0.9rem;
    font-weight: 600;
}

.ghost-link {
    color: var(--aura-gray-mid);
}

.aura-action-btn {
    background-color: var(--aura-black);
    color: var(--aura-white);
    padding: 0.6rem 1.2rem;
    border-radius: 4px;
}

.aura-action-btn:hover {
    opacity: 1;
    background-color: var(--aura-gray-dark);
}

/* Hero */
.hero-split-wrap {
    display: flex;
    min-height: 85vh;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 4vw;
    gap: 4rem;
}

.hero-pane-left {
    flex: 1;
    max-width: 600px;
}

.hero-pane-right {
    flex: 1;
}

.hero-pane-right img {
    border-radius: 8px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
    aspect-ratio: 4/3;
}

.hero-micro-tag {
    display: inline-block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--aura-gray-mid);
    margin-bottom: 1.5rem;
    border: 1px solid var(--aura-gray-light);
    padding: 0.4rem 0.8rem;
    border-radius: 50px;
}

.hero-headline {
    font-size: clamp(2.5rem, 4vw, 4rem);
    line-height: 1.1;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 1.5rem;
}

.hero-subtext {
    font-size: 1.125rem;
    color: var(--aura-gray-dark);
    margin-bottom: 2.5rem;
    max-width: 90%;
}

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

.aura-btn-primary {
    background-color: var(--aura-black);
    color: var(--aura-white);
    padding: 1rem 2rem;
    font-weight: 600;
    border-radius: 4px;
    font-size: 1rem;
}

.aura-btn-primary:hover {
    opacity: 1;
    background-color: var(--aura-gray-dark);
}

.hero-stat-callout {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--aura-gray-mid);
    border-left: 2px solid var(--aura-gray-light);
    padding-left: 1rem;
}

/* Capabilities / Services */
.capabilities-matrix {
    background-color: var(--aura-gray-light);
    padding: 6rem 4vw;
}

.capabilities-header {
    max-width: 1400px;
    margin: 0 auto 4rem auto;
    text-align: center;
}

.capabilities-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.capabilities-header p {
    font-size: 1.1rem;
    color: var(--aura-gray-dark);
    max-width: 600px;
    margin: 0 auto;
}

.matrix-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.matrix-card {
    background-color: var(--aura-white);
    padding: 2.5rem;
    border-radius: 8px;
    border: 1px solid rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.matrix-card:hover {
    transform: translateY(-5px);
}

.matrix-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.matrix-card p {
    color: var(--aura-gray-dark);
    font-size: 0.95rem;
}

/* Validation / Testimonials */
.validation-zone {
    padding: 7rem 4vw;
    max-width: 1400px;
    margin: 0 auto;
}

.validation-title {
    font-size: 2.5rem;
    margin-bottom: 4rem;
    text-align: center;
    letter-spacing: -0.5px;
}

.feedback-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.feedback-unit {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.quote-text {
    font-size: 1.1rem;
    font-style: italic;
    margin-bottom: 2rem;
    color: var(--aura-gray-dark);
}

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

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

.quote-author strong {
    display: block;
    font-size: 0.95rem;
}

.quote-author span {
    font-size: 0.85rem;
    color: var(--aura-gray-mid);
}

/* Methodology Deep Dive */
.deepdive-section {
    background-color: var(--aura-black);
    color: var(--aura-white);
    padding: 8rem 4vw;
}

.deepdive-content-wrapper {
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
    gap: 5rem;
    align-items: flex-start;
}

.deepdive-text {
    flex: 1.2;
}

.deepdive-text h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    letter-spacing: -0.5px;
}

.deepdive-text p {
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
    color: var(--aura-gray-light);
    opacity: 0.9;
}

.deepdive-visual {
    flex: 1;
}

.deepdive-visual img {
    border-radius: 8px;
    aspect-ratio: 4/5;
    opacity: 0.9;
}

/* FAQ Accordion */
.aura-faq-module {
    margin-top: 3rem;
    border-top: 1px solid var(--aura-gray-dark);
    padding-top: 2rem;
}

.faq-heading {
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.faq-item {
    border-bottom: 1px solid var(--aura-gray-dark);
}

.faq-trigger {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    color: var(--aura-white);
    font-family: inherit;
    font-size: 1.05rem;
    padding: 1.2rem 0;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
}

.faq-trigger::after {
    content: '+';
    font-size: 1.2rem;
}

.faq-trigger.active::after {
    content: '-';
}

.faq-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-panel p {
    padding-bottom: 1.2rem;
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* Contact Portal */
.conversion-portal {
    padding: 8rem 4vw;
    background-color: var(--aura-gray-light);
}

.portal-inner {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--aura-white);
    padding: 4rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.03);
}

.portal-inner h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    text-align: center;
    letter-spacing: -0.5px;
}

.portal-inner > p {
    text-align: center;
    color: var(--aura-gray-dark);
    margin-bottom: 2.5rem;
}

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

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 600;
}

.form-group input, .form-group textarea {
    padding: 0.8rem 1rem;
    border: 1px solid var(--aura-gray-mid);
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--aura-black);
}

.aura-submit-btn {
    background-color: var(--aura-black);
    color: var(--aura-white);
    border: none;
    padding: 1rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    margin-top: 1rem;
    transition: background-color 0.2s;
}

.aura-submit-btn:hover {
    background-color: var(--aura-gray-dark);
}

.form-disclaimer {
    font-size: 0.75rem;
    color: var(--aura-gray-mid);
    text-align: center;
    margin-top: 0.5rem;
}

/* Footer */
.aura-base {
    background-color: var(--aura-black);
    color: var(--aura-white);
    padding: 5rem 4vw 2rem 4vw;
}

.aura-footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    max-width: 1400px;
    margin: 0 auto 4rem auto;
}

.footer-brand h4, .footer-links h4 {
    font-size: 1rem;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
    color: var(--aura-gray-mid);
}

.footer-brand p {
    color: var(--aura-gray-light);
    opacity: 0.8;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.footer-links a {
    color: var(--aura-gray-light);
    opacity: 0.8;
    font-size: 0.9rem;
}

.footer-copyright {
    text-align: center;
    border-top: 1px solid var(--aura-gray-dark);
    padding-top: 2rem;
    font-size: 0.85rem;
    color: var(--aura-gray-mid);
}

/* Utility & Pages */
.page-container {
    max-width: 800px;
    margin: 6rem auto;
    padding: 0 4vw;
}

.page-container h1 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

.page-container h2 {
    font-size: 1.5rem;
    margin: 2rem 0 1rem 0;
}

.page-container p {
    margin-bottom: 1rem;
    color: var(--aura-gray-dark);
}

/* Responsive Leakage */
@media (max-width: 900px) {
    .hero-split-wrap, .deepdive-content-wrapper {
        flex-direction: column;
        gap: 3rem;
        padding-top: 6rem;
    }
    .aura-navigation {
        display: none; /* Simplified for mobile */
    }
    .portal-inner {
        padding: 2rem;
    }
}