/* Core Styling Architecture & Variable Mapping */
:root {
    --dark-slate: #111827;
    --charcoal: #1f2937;
    --gold: #d4af37;
    --light-gray: #f9fafb;
    --border-color: #e5e7eb;
    --muted-text: #4b5563;
    --pure-white: #ffffff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    scroll-behavior: smooth;
}

body {
    background-color: var(--pure-white);
    color: var(--charcoal);
    line-height: 1.6;
}

.max-width {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.max-width-narrow {
    width: 90%;
    max-width: 768px;
    margin: 0 auto;
}

.section-padding {
    padding: 80px 0;
}

.bg-light {
    background-color: var(--light-gray);
}

.bg-dark {
    background-color: var(--dark-slate);
}

.text-white {
    color: var(--pure-white) !important;
}

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

/* Typography Engine */
h1, h2, h3 {
    font-weight: 700;
    letter-spacing: -0.025em;
}

.section-title {
    font-size: 2.25rem;
    margin-bottom: 24px;
    color: var(--dark-slate);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--muted-text);
    margin-bottom: 48px;
}

.text-lead {
    font-size: 1.1rem;
    color: var(--muted-text);
    margin-bottom: 16px;
    line-height: 1.8;
}

/* Header & Navigation Bar Styling */
header {
    background-color: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 16px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.logo {
    color: var(--pure-white);
    font-size: 1.35rem;
    font-weight: 800;
}

.logo span {
    display: block;
    font-size: 0.75rem;
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 500;
}

header nav a {
    color: #d1d5db;
    text-decoration: none;
    margin: 0 16px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

header nav a:hover {
    color: var(--gold);
}

/* Layout Infrastructure Components */
.flex-group {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.split-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 48px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.vertical-center {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Hero Screen Segment */
.hero {
    position: relative;
    background-image: url('https://images.unsplash.com/photo-1505693416388-ac5ce068fe85?auto=format&fit=crop&w=1600&q=80');
    background-size: cover;
    background-position: center;
    min-height: 85vh;
    display: flex;
    align-items: center;
    color: var(--pure-white);
    padding: 0 5%;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(17,24,39,0.95), rgba(31,41,55,0.8));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 750px;
}

.badge {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255,255,255,0.2);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 24px;
    color: var(--gold);
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.15;
    margin-bottom: 24px;
}

.hero p {
    font-size: 1.2rem;
    color: #e5e7eb;
    margin-bottom: 32px;
}

/* Interactivity Assets (Buttons) */
.btn-nav {
    border: 1px solid var(--gold);
    color: var(--gold);
    padding: 8px 20px;
    border-radius: 12px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.btn-nav:hover {
    background-color: var(--gold);
    color: var(--dark-slate);
}

.btn-primary {
    background-color: var(--pure-white);
    color: var(--dark-slate);
    padding: 14px 28px;
    border-radius: 16px;
    text-decoration: none;
    font-weight: 600;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.2);
}

.btn-secondary {
    border: 1px solid rgba(255,255,255,0.4);
    color: var(--pure-white);
    padding: 14px 28px;
    border-radius: 16px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.2s;
}

.btn-secondary:hover {
    background-color: rgba(255,255,255,0.1);
}

.btn-dark {
    background-color: var(--dark-slate);
    color: var(--pure-white);
    padding: 14px 32px;
    border-radius: 16px;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    border: none;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-dark:hover {
    background-color: var(--charcoal);
}

.width-full {
    width: 100%;
}

/* Content Element Block Modifications */
.about-img {
    width: 100%;
    height: 420px;
    object-cover: cover;
    border-radius: 24px;
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
}

.service-card {
    background-color: var(--pure-white);
    padding: 32px;
    border-radius: 24px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    transition: box-shadow 0.3s ease;
}

.service-card:hover {
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.05);
}

.service-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    color: var(--dark-slate);
}

.service-card p {
    color: var(--muted-text);
}

/* Portfolio Multi-View Presentation Card */
.portfolio-card {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    height: 288px;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
}

.portfolio-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.portfolio-card:hover img {
    transform: scale(1.05);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0) 70%);
    display: flex;
    align-items: flex-end;
    padding: 24px;
}

.portfolio-overlay h3 {
    color: var(--pure-white);
    font-size: 1.25rem;
}

/* Testimonial Card Sliders */
.testimonial-card {
    background-color: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(4px);
    padding: 32px;
    border-radius: 24px;
    border: 1px solid rgba(255,255,255,0.1);
}

.testimonial-text {
    color: #e5e7eb;
    font-style: italic;
    margin-bottom: 24px;
}

.testimonial-author {
    font-weight: 600;
    color: var(--gold);
}

/* General Layout CTA Separator Banner */
.cta-banner {
    background: gradient: linear-gradient(to right, var(--light-gray), #f3f4f6);
    padding: 80px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.cta-banner h2 {
    font-size: 2.25rem;
    margin-bottom: 16px;
}

.cta-banner p {
    color: var(--muted-text);
    font-size: 1.125rem;
    margin-bottom: 32px;
}

/* Interactive Forms Panel Layout */
.meta-info-list p {
    margin-bottom: 16px;
    font-size: 1.05rem;
}

.contact-form {
    background-color: var(--light-gray);
    padding: 32px;
    border-radius: 24px;
}

.contact-form input, .contact-form textarea {
    width: 100%;
    padding: 16px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    margin-bottom: 16px;
    font-size: 1rem;
    outline: none;
    transition: border 0.2s;
}

.contact-form input:focus, .contact-form textarea:focus {
    border-color: var(--charcoal);
}

/* Universal Page Footer Layout */
footer {
    background-color: #030712;
    color: #9ca3af;
    padding: 32px 0;
    text-align: center;
    font-size: 0.875rem;
    border-top: 1px solid rgba(255,255,255,0.05);
}

/* Adaptive Layout Breakpoints Rules */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    header nav {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
    }
    header nav a {
        margin: 0 8px;
    }
    .hero h1 {
        font-size: 2.5rem;
    }
    .section-title {
        font-size: 1.75rem;
    }
    .about-img {
        height: 300px;
    }
}