/* ==========================================================================
   STERLING CLIMATE SYSTEMS - MONOCHROME PREMIUM STYLES
   ========================================================================== */

:root {
    --scs-black: #0a0a0a;
    --scs-gray-900: #171717;
    --scs-gray-700: #404040;
    --scs-gray-400: #a3a3a3;
    --scs-gray-200: #e5e5e5;
    --scs-gray-100: #f5f5f5;
    --scs-white: #ffffff;
    
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    --spacing-sm: 1rem;
    --spacing-md: 2.5rem;
    --spacing-lg: 6rem;
    --spacing-xl: 10rem;
}

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

body {
    font-family: var(--font-body);
    color: var(--scs-gray-900);
    background-color: var(--scs-white);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, .scs-logomark, .scs-footer-logo {
    font-family: var(--font-heading);
    font-weight: 400;
    color: var(--scs-black);
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

/* --- Header --- */
.scs-masthead {
    position: sticky;
    top: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--scs-gray-200);
    z-index: 100;
    padding: 1.5rem 5%;
}

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

.scs-logomark {
    font-size: 1.5rem;
    letter-spacing: 0.1em;
}

.scs-primary-nav {
    display: flex;
    gap: 2rem;
}

.scs-primary-nav a {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--scs-gray-700);
}

.scs-primary-nav a:hover {
    color: var(--scs-black);
}

/* --- Hero --- */
.scs-hero-bleed {
    position: relative;
    min-height: 85vh;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    padding: 0 5%;
}

.scs-hero-veil {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.4) 100%);
    z-index: 1;
}

.scs-hero-content-core {
    position: relative;
    z-index: 2;
    max-width: 800px;
    color: var(--scs-white);
}

.scs-micro-badge {
    display: inline-block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    border: 1px solid rgba(255,255,255,0.3);
    padding: 0.5rem 1rem;
    margin-bottom: 1.5rem;
}

.scs-hero-headline {
    font-size: clamp(3rem, 5vw, 5.5rem);
    color: var(--scs-white);
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.scs-hero-subtext {
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--scs-gray-200);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.scs-btn-invert {
    display: inline-block;
    background-color: var(--scs-white);
    color: var(--scs-black);
    padding: 1rem 2.5rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid var(--scs-white);
    transition: all 0.3s ease;
}

.scs-btn-invert:hover {
    background-color: transparent;
    color: var(--scs-white);
}

/* --- General Section Styles --- */
.scs-section-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

/* --- Heritage / About --- */
.scs-deep-origins {
    padding: var(--spacing-lg) 5%;
    background-color: var(--scs-white);
}

.scs-origins-layout {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.scs-origins-prose p {
    margin-bottom: 1.5rem;
    color: var(--scs-gray-700);
    font-size: 1.1rem;
}

.scs-inline-link {
    border-bottom: 1px solid var(--scs-black);
    padding-bottom: 2px;
}

.scs-metrics-cluster {
    display: flex;
    gap: 3rem;
    margin-top: 3rem;
    padding-top: 3rem;
    border-top: 1px solid var(--scs-gray-200);
}

.scs-metric-val {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    line-height: 1;
    display: inline-block;
}

.scs-metric-suffix {
    font-family: var(--font-heading);
    font-size: 2rem;
    vertical-align: super;
}

.scs-metric-label {
    display: block;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--scs-gray-400);
    margin-top: 0.5rem;
}

.scs-origins-visual img {
    aspect-ratio: 4/5;
    filter: grayscale(100%);
}

/* --- Capabilities / Services --- */
.scs-offerings-sector {
    padding: var(--spacing-xl) 5%;
    background-color: var(--scs-gray-100);
}

.scs-offerings-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-lg) auto;
}

.scs-offerings-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.scs-offering-card {
    background: var(--scs-white);
    padding: 2rem;
    border: 1px solid var(--scs-gray-200);
    transition: transform 0.4s ease;
}

.scs-offering-card:hover {
    transform: translateY(-10px);
}

.scs-card-img-wrap {
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.scs-card-img-wrap img {
    aspect-ratio: 16/9;
    filter: grayscale(100%);
    transition: filter 0.4s ease, transform 0.4s ease;
}

.scs-offering-card:hover .scs-card-img-wrap img {
    filter: grayscale(0%);
    transform: scale(1.05);
}

.scs-card-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.scs-card-desc {
    color: var(--scs-gray-700);
}

.scs-compliance-note {
    text-align: center;
    margin-top: 4rem;
    color: var(--scs-gray-400);
}

/* --- Endorsements / Testimonials --- */
.scs-client-praise-zone {
    padding: var(--spacing-lg) 5%;
    background-color: var(--scs-black);
    color: var(--scs-white);
}

.scs-praise-inner {
    max-width: 1400px;
    margin: 0 auto;
}

.scs-praise-inner .scs-section-title {
    color: var(--scs-white);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

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

.scs-praise-block {
    padding: 2.5rem;
    border: 1px solid var(--scs-gray-700);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.scs-quote {
    font-family: var(--font-heading);
    font-style: italic;
    font-size: 1.25rem;
    margin-bottom: 2rem;
    line-height: 1.7;
    color: var(--scs-gray-200);
}

.scs-praise-source {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.scs-praise-source img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    filter: grayscale(100%);
}

.scs-praise-source span {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--scs-gray-400);
}

/* --- Consultation / Contact --- */
.scs-inquiry-portal {
    padding: var(--spacing-xl) 5%;
    background-color: var(--scs-white);
}

.scs-portal-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-lg);
}

.scs-portal-info p {
    color: var(--scs-gray-700);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.scs-business-hours {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--scs-gray-200);
    font-size: 0.9rem !important;
}

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

.scs-input-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.scs-field-group label {
    display: block;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    color: var(--scs-gray-900);
}

.scs-field-group input,
.scs-field-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--scs-gray-200);
    background-color: var(--scs-gray-100);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

.scs-btn-solid {
    background-color: var(--scs-black);
    color: var(--scs-white);
    border: none;
    padding: 1.25rem 2.5rem;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    align-self: flex-start;
    transition: background-color 0.3s ease;
}

.scs-btn-solid:hover {
    background-color: var(--scs-gray-700);
}

/* --- Footer --- */
.scs-global-footer {
    background-color: var(--scs-gray-100);
    padding: var(--spacing-lg) 5% 2rem 5%;
    border-top: 1px solid var(--scs-gray-200);
}

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

.scs-footer-logo {
    display: block;
    font-size: 1.5rem;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.scs-footer-brand p, .scs-footer-brand address {
    color: var(--scs-gray-700);
    font-style: normal;
    margin-bottom: 0.5rem;
}

.scs-footer-links h4 {
    font-family: var(--font-body);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
}

.scs-footer-links ul {
    list-style: none;
}

.scs-footer-links li {
    margin-bottom: 0.75rem;
}

.scs-footer-links a {
    color: var(--scs-gray-700);
    font-size: 0.95rem;
}

.scs-footer-links a:hover {
    color: var(--scs-black);
    text-decoration: underline;
}

.scs-footer-legal-bar {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid var(--scs-gray-200);
    text-align: center;
    font-size: 0.85rem;
    color: var(--scs-gray-400);
}

/* --- Responsive Adjustments --- */
@media (max-width: 1024px) {
    .scs-origins-layout,
    .scs-portal-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .scs-footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .scs-primary-nav {
        display: none; /* Simplification for mobile */
    }
    
    .scs-hero-headline {
        font-size: 2.5rem;
    }
    
    .scs-input-row {
        grid-template-columns: 1fr;
    }
    
    .scs-footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    
    :root {
        --spacing-lg: 4rem;
        --spacing-xl: 5rem;
    }
}