/* =========================================
   VARIABLES & RESET
========================================= */
:root {
    /* Colors - Premium Architectural Theme */
    --primary: #1A202C; /* Deep Slate/Navy */
    --primary-light: #2D3748;
    --accent: #D4AF37; /* Metallic Gold */
    --accent-hover: #F3E5AB;
    --bg-light: #F7FAFC;
    --bg-white: #FFFFFF;
    --text-main: #2D3748;
    --text-muted: #718096;
    --text-light: #EDF2F7;
    
    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Transition */
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    
    /* Variables */
    --nav-height: 80px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-main);
    background-color: var(--bg-white);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--primary);
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
}

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

/* =========================================
   BUTTONS
========================================= */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: 16px;
    font-weight: 500;
    border-radius: 2px;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--accent);
    color: var(--primary);
    font-weight: 600;
}

.btn-primary:hover {
    background-color: var(--primary);
    color: var(--accent);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--text-light);
    color: var(--text-light);
}

.btn-outline:hover {
    background-color: var(--text-light);
    color: var(--primary);
}

/* =========================================
   NAVBAR
========================================= */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.navbar.scrolled {
    box-shadow: 0 2px 20px rgba(0,0,0,0.05);
    height: 70px;
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    font-family: var(--font-heading);
    font-size: 28px;
    font-weight: 700;
    color: var(--primary);
}

.logo span {
    color: var(--accent);
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-weight: 500;
    font-size: 15px;
    color: var(--primary);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: var(--transition);
}

.nav-links a:hover::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--primary);
    cursor: pointer;
}

/* =========================================
   HERO SECTION
========================================= */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    background-color: var(--primary);
    color: var(--text-light);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Subtle geometric/architectural pattern */
    background-image: 
        linear-gradient(rgba(26, 32, 44, 0.85), rgba(26, 32, 44, 0.9)),
        url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23d4af37' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero h2 {
    color: var(--accent);
    font-family: var(--font-body);
    font-size: 16px;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.hero h1 {
    font-size: 64px;
    color: var(--bg-white);
    margin-bottom: 24px;
}

.hero p {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 40px;
    opacity: 0.9;
}

.hero-btns {
    display: flex;
    gap: 16px;
}

/* =========================================
   COMMON SECTION STYLES
========================================= */
.section-subtitle {
    display: block;
    color: var(--accent);
    font-weight: 600;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 8px;
}

.section-title {
    font-size: 40px;
    margin-bottom: 40px;
    position: relative;
    padding-bottom: 16px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background-color: var(--accent);
}

.text-center .section-title::after {
    left: 50%;
    transform: translateX(-50%);
}

/* =========================================
   ABOUT SECTION
========================================= */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-details p {
    margin-bottom: 16px;
    font-size: 16px;
    color: var(--text-muted);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.stat-box {
    background-color: var(--bg-white);
    padding: 32px 24px;
    border-radius: 4px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    border-top: 3px solid var(--accent);
    transition: var(--transition);
}

.stat-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
}

.stat-box h3 {
    font-size: 40px;
    color: var(--primary);
    margin-bottom: 8px;
}

.stat-box p {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 14px;
}

/* =========================================
   SERVICES SECTION
========================================= */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-card {
    background-color: var(--bg-white);
    padding: 40px 32px;
    border-radius: 4px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.02);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--accent);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.05);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 60px;
    height: 60px;
    background-color: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--accent);
    font-size: 28px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background-color: var(--accent);
    color: var(--bg-white);
}

.service-card h3 {
    font-size: 20px;
    margin-bottom: 16px;
}

.service-card p {
    color: var(--text-muted);
    font-size: 15px;
}

/* =========================================
   CONTACT SECTION
========================================= */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info > p {
    color: var(--text-muted);
    margin-bottom: 40px;
}

.info-items {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.info-item i {
    font-size: 24px;
    color: var(--accent);
    background-color: rgba(212, 175, 55, 0.1);
    padding: 12px;
    border-radius: 50%;
}

.info-item h4 {
    font-family: var(--font-body);
    font-size: 16px;
    margin-bottom: 4px;
}

.info-item p {
    color: var(--text-muted);
    font-size: 15px;
}

.contact-form {
    background-color: var(--bg-light);
    padding: 40px;
    border-radius: 4px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px;
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 2px;
    font-family: var(--font-body);
    font-size: 15px;
    outline: none;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.1);
}

.submit-btn {
    width: 100%;
    border: none;
    padding: 16px;
}

/* =========================================
   FOOTER
========================================= */
.footer {
    background-color: var(--primary);
    color: var(--text-light);
    padding: 40px 0;
    text-align: center;
}

.footer-bottom p {
    opacity: 0.7;
    font-size: 14px;
}

/* =========================================
   ANIMATIONS
========================================= */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* =========================================
   RESPONSIVE DESIGN
========================================= */
@media (max-width: 991px) {
    .about-grid, .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 48px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: var(--nav-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--nav-height));
        background-color: var(--bg-white);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transition: var(--transition);
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero h1 {
        font-size: 40px;
    }
    
    .section {
        padding: 60px 0;
    }
}