:root {
    --apex-bg-primary: #ffffff;
    --apex-bg-secondary: #f8f9fa;
    --apex-bg-tertiary: #e9ecef;
    --apex-text-main: #212529;
    --apex-text-muted: #6c757d;
    --apex-accent: #343a40;
    --apex-border: #dee2e6;
    
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-body);
    color: var(--apex-text-main);
    background-color: var(--apex-bg-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--apex-text-main);
}

a {
    color: var(--apex-text-main);
    text-decoration: none;
    transition: opacity 0.2s ease;
}

a:hover {
    opacity: 0.7;
}

/* Header */
.apex-global-header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--apex-border);
    z-index: 1000;
}

.apex-header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.2rem 4%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.apex-brand-mark {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.25rem;
}

.apex-primary-nav {
    display: flex;
    gap: 2rem;
    align-items: center;
    font-size: 0.9rem;
    font-weight: 500;
}

.apex-nav-cta {
    background: var(--apex-text-main);
    color: var(--apex-bg-primary) !important;
    padding: 0.5rem 1rem;
    border-radius: 2px;
}

.apex-text-muted {
    color: var(--apex-text-muted) !important;
}

/* Hero Segment */
.apex-hero-bifurcated {
    display: grid;
    grid-template-columns: 1fr;
    min-height: 85vh;
}

@media(min-width: 992px) {
    .apex-hero-bifurcated {
        grid-template-columns: 1.1fr 0.9fr;
    }
}

.apex-hero-content-pane {
    padding: 12vh 8% 8vh 8%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
}

.apex-micro-label {
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    color: var(--apex-text-muted);
    margin-bottom: 1.5rem;
    display: block;
}

.apex-display-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    margin-bottom: 1.5rem;
}

.apex-hero-subtext {
    font-size: 1.1rem;
    color: var(--apex-text-muted);
    max-width: 500px;
    margin-bottom: 3rem;
}

.apex-hero-metrics {
    margin-bottom: 3rem;
    border-left: 2px solid var(--apex-text-main);
    padding-left: 1.5rem;
}

.apex-metric-block strong {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    display: inline-block;
}

.apex-metric-block span {
    display: block;
    font-size: 0.85rem;
    color: var(--apex-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.apex-action-trigger {
    display: inline-block;
    background: var(--apex-text-main);
    color: var(--apex-bg-primary);
    padding: 1rem 2rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    border-radius: 2px;
}

.apex-hero-visual-pane {
    height: 100%;
    min-height: 400px;
}

.apex-hero-img {
    height: 100%;
}

/* Modalities / Services */
.apex-procedural-modalities {
    padding: 10vh 4%;
    background: var(--apex-bg-secondary);
}

.apex-section-head {
    max-width: 1400px;
    margin: 0 auto 4rem auto;
    text-align: center;
}

.apex-section-head h2 {
    font-size: 2.5rem;
}

.apex-modality-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.apex-modality-card {
    background: var(--apex-bg-primary);
    border: 1px solid var(--apex-border);
    transition: transform 0.3s ease;
}

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

.apex-modality-card img {
    aspect-ratio: 4/3;
    border-bottom: 1px solid var(--apex-border);
}

.apex-card-body {
    padding: 2rem;
}

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

.apex-card-body p {
    font-size: 0.95rem;
    color: var(--apex-text-muted);
}

/* Deep Dive / About */
.apex-clinical-deep-dive {
    padding: 15vh 4%;
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 4rem;
    align-items: center;
}

@media(min-width: 992px) {
    .apex-clinical-deep-dive {
        flex-direction: row;
    }
    .apex-deep-dive-text, .apex-deep-dive-media {
        flex: 1;
    }
}

.apex-deep-dive-text h2 {
    font-size: 3rem;
    margin-bottom: 2rem;
}

.apex-deep-dive-text p {
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
    color: var(--apex-text-muted);
}

.apex-inline-link {
    text-decoration: underline;
    text-underline-offset: 4px;
    color: var(--apex-text-main);
}

.apex-cert-list {
    margin-top: 2rem;
    list-style: none;
    border-top: 1px solid var(--apex-border);
    padding-top: 2rem;
}

.apex-cert-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.apex-cert-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--apex-text-muted);
}

/* Advantages */
.apex-technical-advantages {
    background: var(--apex-text-main);
    color: var(--apex-bg-primary);
    padding: 10vh 4%;
}

.apex-advantages-wrapper {
    max-width: 1400px;
    margin: 0 auto;
}

.apex-advantages-wrapper h2 {
    color: var(--apex-bg-primary);
    margin-bottom: 4rem;
    font-size: 2.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.2);
    padding-bottom: 1rem;
}

.apex-advantages-layout {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
}

.apex-advantage-item strong {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--apex-bg-secondary);
}

.apex-advantage-item p {
    color: #adb5bd;
    font-size: 0.95rem;
}

/* Outcomes */
.apex-patient-outcomes {
    padding: 12vh 4%;
    max-width: 1400px;
    margin: 0 auto;
}

.apex-patient-outcomes h2 {
    font-size: 2.5rem;
    margin-bottom: 4rem;
    text-align: center;
}

.apex-testimonial-cluster {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.apex-testimony-node {
    background: var(--apex-bg-secondary);
    padding: 3rem 2rem;
    border-radius: 4px;
}

.apex-quote {
    font-style: italic;
    color: var(--apex-text-muted);
    margin-bottom: 2rem;
    font-size: 1.05rem;
}

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

.apex-referrer-meta img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
}

.apex-referrer-meta strong {
    display: block;
    font-size: 0.9rem;
}

.apex-referrer-meta span {
    font-size: 0.8rem;
    color: var(--apex-text-muted);
}

/* Form Section */
.apex-referral-intake {
    background: var(--apex-bg-tertiary);
    padding: 12vh 4%;
}

.apex-intake-container {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
}

@media(min-width: 768px) {
    .apex-intake-container {
        grid-template-columns: 1fr 1fr;
    }
}

.apex-intake-info h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.apex-intake-info > p {
    color: var(--apex-text-muted);
    margin-bottom: 2rem;
}

.apex-micro-details {
    background: var(--apex-bg-primary);
    padding: 1.5rem;
    border-left: 3px solid var(--apex-text-main);
    font-size: 0.9rem;
}

.apex-disclaimer {
    margin-top: 1rem;
    font-size: 0.75rem;
    color: var(--apex-text-muted);
}

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

.apex-form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.apex-form-group input,
.apex-form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--apex-border);
    background: var(--apex-bg-primary);
    font-family: inherit;
}

.apex-form-group input:focus,
.apex-form-group textarea:focus {
    outline: none;
    border-color: var(--apex-text-main);
}

.apex-submit-trigger {
    background: var(--apex-text-main);
    color: var(--apex-bg-primary);
    border: none;
    padding: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s;
}

.apex-submit-trigger:hover {
    background: #000;
}

/* Footer */
.apex-global-footer {
    background: var(--apex-bg-primary);
    padding: 6rem 4% 2rem 4%;
    border-top: 1px solid var(--apex-border);
}

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

.apex-footer-col h4 {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.apex-footer-col p,
.apex-footer-col a {
    font-size: 0.9rem;
    color: var(--apex-text-muted);
    margin-bottom: 0.5rem;
    display: block;
}

.apex-copyright {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
    font-size: 0.8rem;
    color: var(--apex-text-muted);
    border-top: 1px solid var(--apex-border);
    padding-top: 2rem;
}

@media(max-width: 768px) {
    .apex-primary-nav {
        display: none; /* Simplified for mobile in this demo */
    }
    .apex-hero-content-pane {
        padding: 8vh 5%;
    }
    .apex-clinical-deep-dive {
        padding: 8vh 5%;
    }
}