/* ========================================
   MOSGROUP - Premium Construction Company
   Luxury & Elegant Design
   ======================================== */

/* ===== CSS Variables ===== */
:root {
    --black: #0a0a0a;
    --gold: #c9a227;
    --gold-light: #d4af37;
    --white: #ffffff;
    --gray: #888888;
    --transition: all 0.3s ease;
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', sans-serif;
    background-color: var(--black);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Header & Navigation ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(201, 162, 39, 0.2);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 50px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--white);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gold);
    transition: var(--transition);
}

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

.nav-links a:hover,
.nav-links a.active {
    color: var(--gold);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Hero Section ===== */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(135deg, rgba(10, 10, 10, 0.9), rgba(10, 10, 10, 0.7)),
                url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?w=1920') center/cover no-repeat;
}

.hero-content {
    text-align: center;
    z-index: 1;
    animation: fadeInUp 1s ease;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 20px;
    letter-spacing: 3px;
}

.hero-content h1 span {
    color: var(--gold);
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--gray);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    background: var(--gold);
    color: var(--black);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    border: 2px solid var(--gold);
    cursor: pointer;
    transition: var(--transition);
}

.btn:hover {
    background: transparent;
    color: var(--gold);
}

.btn-outline {
    background: transparent;
    color: var(--gold);
}

.btn-outline:hover {
    background: var(--gold);
    color: var(--black);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-indicator i {
    font-size: 2rem;
    color: var(--gold);
}

/* ===== Section Styles ===== */
section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.section-title h2 span {
    color: var(--gold);
}

.section-title p {
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

.gold-line {
    width: 60px;
    height: 3px;
    background: var(--gold);
    margin: 20px auto;
}

/* ===== Featured Projects ===== */
.featured-projects {
    background: linear-gradient(180deg, var(--black), #111);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(201, 162, 39, 0.2);
    transition: var(--transition);
}

.project-card:hover {
    border-color: var(--gold);
    transform: translateY(-10px);
}

.project-image {
    height: 300px;
    background-size: cover;
    background-position: center;
    position: relative;
}

.project-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(10, 10, 10, 0.9), transparent);
}

.project-status {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 8px 15px;
    background: var(--gold);
    color: var(--black);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    z-index: 1;
}

.project-info {
    padding: 25px;
    background: rgba(20, 20, 20, 0.9);
}

.project-info h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.project-info .location {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.project-info .location i {
    color: var(--gold);
    margin-right: 5px;
}

.project-info .price {
    font-size: 1.2rem;
    color: var(--gold);
    font-weight: 600;
}

/* ===== Why Mosgroup ===== */
.why-mosgroup {
    background: var(--black);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature-card {
    text-align: center;
    padding: 40px;
    border: 1px solid rgba(201, 162, 39, 0.2);
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--gold);
    background: rgba(201, 162, 39, 0.05);
}

.feature-card i {
    font-size: 3rem;
    color: var(--gold);
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.feature-card p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* ===== Statistics ===== */
.statistics {
    background: linear-gradient(135deg, rgba(201, 162, 39, 0.1), rgba(10, 10, 10, 0.95)),
                url('https://images.unsplash.com/photo-1504307651254-35680f356dfd?w=1920') center/cover fixed;
    padding: 80px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    text-align: center;
}

.stat-item h3 {
    font-size: 3.5rem;
    color: var(--gold);
    margin-bottom: 10px;
}

.stat-item p {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--gray);
}

/* ===== Footer ===== */
footer {
    background: #050505;
    padding: 60px 0 20px;
    border-top: 1px solid rgba(201, 162, 39, 0.2);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--gold);
}

.footer-section p,
.footer-section a {
    color: var(--gray);
    font-size: 0.9rem;
    line-height: 2;
}

.footer-section a:hover {
    color: var(--gold);
}

.footer-section ul li {
    margin-bottom: 10px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    width: 40px;
    height: 40px;
    border: 1px solid var(--gold);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--gold);
    color: var(--black);
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(201, 162, 39, 0.2);
    color: var(--gray);
    font-size: 0.85rem;
}

/* ===== Page Header ===== */
.page-header {
    height: 40vh;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(10, 10, 10, 0.9), rgba(10, 10, 10, 0.8)),
                url('https://images.unsplash.com/photo-1487958449943-2429e8be8625?w=1920') center/cover no-repeat;
    margin-top: 80px;
}

.page-header h1 {
    font-size: 3rem;
    text-align: center;
}

.page-header h1 span {
    color: var(--gold);
}

/* ===== Projects Page ===== */
.filter-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 30px;
    background: transparent;
    border: 1px solid var(--gold);
    color: var(--gold);
    font-family: 'Montserrat', sans-serif;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gold);
    color: var(--black);
}

.all-projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

/* ===== About Page ===== */
.about-section {
    padding: 80px 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text h2 {
    font-size: 2.2rem;
    margin-bottom: 20px;
}

.about-text h2 span {
    color: var(--gold);
}

.about-text p {
    color: var(--gray);
    margin-bottom: 20px;
    line-height: 1.8;
}

.about-image {
    height: 500px;
    background: url('https://images.unsplash.com/photo-1503387762-592deb58ef4e?w=800') center/cover no-repeat;
    border: 1px solid rgba(201, 162, 39, 0.3);
}

.values-section {
    background: #111;
    padding: 80px 0;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.value-card {
    padding: 30px;
    border-left: 3px solid var(--gold);
    background: rgba(201, 162, 39, 0.03);
}

.value-card h3 {
    color: var(--gold);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.value-card p {
    color: var(--gray);
    font-size: 0.95rem;
}

.vision-mission {
    padding: 80px 0;
}

.vm-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.vm-card {
    padding: 40px;
    border: 1px solid rgba(201, 162, 39, 0.2);
    text-align: center;
}

.vm-card i {
    font-size: 3rem;
    color: var(--gold);
    margin-bottom: 20px;
}

.vm-card h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.vm-card p {
    color: var(--gray);
    line-height: 1.8;
}

/* ===== Gallery Page ===== */
.gallery-section {
    padding: 80px 0;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.gallery-item {
    position: relative;
    height: 300px;
    overflow: hidden;
    cursor: pointer;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 10, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay i {
    font-size: 2rem;
    color: var(--gold);
}

/* Lightbox */
.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90%;
    max-height: 90%;
    object-fit: contain;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 2rem;
    color: var(--white);
    cursor: pointer;
    transition: var(--transition);
}

.lightbox-close:hover {
    color: var(--gold);
}

.lightbox-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2rem;
    color: var(--white);
    cursor: pointer;
    padding: 20px;
    transition: var(--transition);
}

.lightbox-nav:hover {
    color: var(--gold);
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

/* ===== Contact Page ===== */
.contact-section {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
}

.contact-info h3 span {
    color: var(--gold);
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 30px;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--gold);
    margin-top: 5px;
}

.info-item h4 {
    font-size: 1rem;
    margin-bottom: 5px;
}

.info-item p,
.info-item a {
    color: var(--gray);
}

.info-item a:hover {
    color: var(--gold);
}

.contact-form h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
}

.contact-form h3 span {
    color: var(--gold);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(201, 162, 39, 0.3);
    color: var(--white);
    font-family: 'Montserrat', sans-serif;
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--gold);
    background: rgba(201, 162, 39, 0.05);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray);
}

.form-group .error-message {
    color: #e74c3c;
    font-size: 0.85rem;
    margin-top: 5px;
    display: none;
}

.form-group.error input,
.form-group.error textarea {
    border-color: #e74c3c;
}

.form-group.error .error-message {
    display: block;
}

.form-success {
    background: rgba(39, 174, 96, 0.1);
    border: 1px solid #27ae60;
    padding: 15px;
    color: #27ae60;
    text-align: center;
    margin-bottom: 20px;
    display: none;
}

.form-success.show {
    display: block;
}

.map-section {
    height: 400px;
    background: #111;
    margin-top: 60px;
}

.map-section iframe {
    width: 100%;
    height: 100%;
    border: none;
    filter: grayscale(100%) invert(90%) contrast(90%);
}

/* ===== Animations ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== Responsive Design ===== */
@media (max-width: 992px) {
    .about-content {
        grid-template-columns: 1fr;
    }

    .about-image {
        height: 400px;
    }

    .vm-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        background: var(--black);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links a {
        font-size: 1.2rem;
        padding: 15px 0;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-content p {
        font-size: 1rem;
        padding: 0 20px;
    }

    .section-title h2 {
        font-size: 2rem;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .stat-item h3 {
        font-size: 2.5rem;
    }

    .projects-grid,
    .all-projects-grid {
        grid-template-columns: 1fr;
    }

    .filter-buttons {
        gap: 10px;
    }

    .filter-btn {
        padding: 10px 20px;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .btn {
        padding: 12px 30px;
        font-size: 0.85rem;
    }

    .feature-card {
        padding: 30px 20px;
    }

    .gallery-item {
        height: 250px;
    }
}

/* ===== Utility Classes ===== */
.text-gold {
    color: var(--gold);
}

.text-gray {
    color: var(--gray);
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

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