/* ==========================================================================
   Base Styles & Variables
   ========================================================================== */
:root {
    --bg-main: #FAFAFA;
    --bg-light: #F0F0F0;
    --primary: #1C1C1C; /* Near Black */
    --accent: #A8865B; /* Muted Brass / Gold */
    --text-main: #1A1A1A;
    --text-muted: #666666;
    --border: #DDDDDD;
    
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.7;
    overflow-x: hidden;
    font-size: 1rem;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.2;
    color: var(--primary);
}

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

ul {
    list-style: none;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 5%;
}

.text-center { text-align: center; }
.mt-4 { margin-top: 3rem; }
.mt-5 { margin-top: 4rem; }
.bg-light { background-color: var(--bg-light); }
.w-100 { width: 100%; }

/* ==========================================================================
   Typography & Utilities
   ========================================================================== */
.section-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

.section-subtitle {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 0.8rem;
    display: block;
}

.btn-solid {
    display: inline-block;
    padding: 1.2rem 3rem;
    background: var(--primary);
    color: #fff;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-outline-white {
    display: inline-block;
    padding: 1.1rem 3rem;
    background: transparent;
    color: #fff;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    border: 1px solid #fff;
    cursor: pointer;
    transition: var(--transition);
}

.btn-outline-white:hover {
    background: #fff;
    color: var(--primary);
}

.btn-outline-dark {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: transparent;
    color: var(--primary);
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.8rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    border: 1px solid var(--primary);
    cursor: pointer;
    transition: var(--transition);
}

.btn-outline-dark:hover {
    background: var(--primary);
    color: #fff;
}

.link-arrow {
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--primary);
    padding-bottom: 0.2rem;
}

.link-arrow i {
    transition: transform 0.3s ease;
}

.link-arrow:hover {
    color: var(--accent);
    border-color: var(--accent);
}

.link-arrow:hover i {
    transform: translateX(5px);
}

/* ==========================================================================
   Navigation
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0; left: 0; width: 100%;
    padding: 2rem 0;
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid rgba(255,255,255,0.2);
}

.navbar.scrolled {
    padding: 1rem 0;
    background: var(--bg-main);
    border-bottom: 1px solid var(--border);
}

.navbar.scrolled .logo,
.navbar.scrolled .nav-links li a,
.navbar.scrolled .menu-toggle {
    color: var(--primary);
}

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

.navbar.scrolled .btn-outline-dark {
    border-color: var(--primary);
    color: var(--primary);
}

.navbar.scrolled .btn-outline-dark:hover {
    background: var(--primary);
    color: #fff;
}

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

.logo {
    font-family: var(--font-body);
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 4px;
    color: #fff;
}

.logo span {
    font-weight: 300;
}

.nav-links {
    display: flex;
    gap: 3rem;
}

.nav-links li a {
    font-size: 0.85rem;
    font-weight: 500;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-links li a:hover {
    color: var(--accent);
}

/* Base state for button before scroll */
.btn-outline-dark {
    border-color: #fff;
    color: #fff;
}

.btn-outline-dark:hover {
    background: #fff;
    color: var(--primary);
}

.menu-toggle {
    display: none;
    background: transparent;
    border: none;
    font-size: 1.5rem;
    color: #fff;
    cursor: pointer;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    height: 100vh;
    min-height: 800px;
    position: relative;
    display: flex;
    align-items: center;
}

.hero-bg {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -1;
}

.hero-bg img {
    width: 100%; height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(28, 28, 28, 0.4);
}

.hero-content {
    position: relative;
    z-index: 1;
    color: #fff;
    animation: fadeIn 1.5s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.subtitle {
    font-family: var(--font-body);
    font-size: 0.8rem;
    letter-spacing: 4px;
    margin-bottom: 2rem;
    display: block;
}

.hero h1 {
    font-size: 5.5rem;
    color: #fff;
    margin-bottom: 1.5rem;
}

.hero p {
    font-size: 1.2rem;
    max-width: 600px;
    margin-bottom: 3rem;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
}

.scroll-down {
    position: absolute;
    bottom: 3rem;
    left: 5%;
    display: flex;
    align-items: center;
    gap: 1rem;
    color: #fff;
    font-family: var(--font-body);
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    transform: rotate(-90deg);
    transform-origin: left center;
}

.scroll-down .line {
    width: 60px;
    height: 1px;
    background: #fff;
}

/* ==========================================================================
   Intro Section
   ========================================================================== */
.intro {
    padding: 10rem 0;
    background: var(--bg-main);
}

.intro-wrapper {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.intro-text h2 {
    font-size: 2.2rem;
    line-height: 1.5;
    margin-bottom: 2rem;
}

.intro-text p {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-style: italic;
    color: var(--text-muted);
}

/* ==========================================================================
   Projects Section
   ========================================================================== */
.projects {
    padding: 8rem 0;
}

.section-header {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-end;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 400px;
    gap: 2rem;
}

.project-card {
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.project-card.large {
    grid-row: span 2;
    grid-column: span 1;
}

.project-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

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

.project-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.3);
    display: flex;
    align-items: flex-end;
    padding: 3rem;
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

.project-info span {
    font-family: var(--font-body);
    font-size: 0.75rem;
    letter-spacing: 2px;
    color: #fff;
    margin-bottom: 0.5rem;
    display: block;
}

.project-info h3 {
    font-size: 2rem;
    color: #fff;
    transform: translateY(20px);
    transition: transform 0.5s ease;
}

.project-card:hover .project-info h3 {
    transform: translateY(0);
}

/* ==========================================================================
   Services Section
   ========================================================================== */
.services {
    padding: 10rem 0;
    background: var(--bg-main);
}

.services-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
}

.services-left p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-top: 2rem;
}

.services-right {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.service-item {
    display: flex;
    gap: 2rem;
    border-top: 1px solid var(--border);
    padding-top: 2rem;
}

.s-number {
    font-family: var(--font-body);
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--accent);
}

.s-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-family: var(--font-body);
    font-weight: 500;
}

.s-content p {
    color: var(--text-muted);
}

/* ==========================================================================
   About Stats Section
   ========================================================================== */
.about-stats {
    padding: 8rem 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    text-align: center;
}

.stat-box h2 {
    font-size: 4rem;
    margin-bottom: 0.5rem;
}

.stat-box p {
    font-family: var(--font-body);
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-muted);
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact {
    padding: 10rem 0;
    background: var(--bg-main);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
}

.contact-text p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.contact-info p {
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.contact-info strong {
    display: inline-block;
    width: 80px;
    font-weight: 600;
    color: var(--primary);
}

.input-group {
    margin-bottom: 2rem;
}

.input-group input,
.input-group select,
.input-group textarea {
    width: 100%;
    padding: 1rem 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--primary);
    transition: var(--transition);
}

.input-group input:focus,
.input-group select:focus,
.input-group textarea:focus {
    outline: none;
    border-bottom-color: var(--primary);
}

.input-group select {
    appearance: none;
    cursor: pointer;
    color: var(--text-muted);
}

/* ==========================================================================
   Footer
   ========================================================================== */
footer {
    background: var(--primary);
    color: #fff;
    padding: 5rem 0;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 3rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 3rem;
}

.footer-top .logo {
    color: #fff;
}

.socials {
    display: flex;
    gap: 1.5rem;
}

.socials a {
    color: #fff;
    font-size: 1.2rem;
    opacity: 0.7;
}

.socials a:hover {
    opacity: 1;
    color: var(--accent);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a:hover {
    color: #fff;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
.sidebar-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    opacity: 0; visibility: hidden;
    transition: var(--transition);
}

.sidebar-overlay.active {
    opacity: 1; visibility: visible;
}

@media (max-width: 992px) {
    .hero h1 { font-size: 4rem; }
    .intro { padding: 6rem 0; }
    .services-wrapper { grid-template-columns: 1fr; gap: 4rem; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 4rem; }
    .contact-container { grid-template-columns: 1fr; gap: 4rem; }
    .project-card.large { grid-row: span 1; }
}

@media (max-width: 768px) {
    .menu-toggle { display: block; color: var(--primary); }
    .navbar { padding: 1.5rem 0; }
    .navbar .menu-toggle { color: #fff; }
    .navbar.scrolled .menu-toggle { color: var(--primary); }
    .desktop-btn { display: none; }
    
    .nav-links {
        position: fixed;
        top: 0; right: -300px;
        width: 300px; height: 100vh;
        background: var(--bg-main);
        flex-direction: column;
        padding: 6rem 3rem;
        gap: 2.5rem;
        transition: 0.4s ease-in-out;
        z-index: 1001;
    }
    
    .nav-links.active { right: 0; box-shadow: -10px 0 30px rgba(0,0,0,0.1); }
    .nav-links li a { color: var(--primary); font-size: 1.1rem; }
    
    .hero h1 { font-size: 3rem; }
    .hero-buttons { flex-direction: column; }
    .scroll-down { display: none; }
    
    .projects-grid { grid-template-columns: 1fr; grid-auto-rows: 300px; }
    .section-header { flex-direction: column; align-items: flex-start; gap: 1.5rem; }
    
    .footer-top, .footer-bottom { flex-direction: column; gap: 2rem; text-align: center; }
}