/* ===== GLOBAL STYLES ===== */
:root {
    --primary-gold: #d4af37;
    --secondary-gold: #f4e19c;
    --light-bg: #ffffff;
    --lighter-bg: #fafafa;
    --card-bg: #f8f9fa;
    --text-dark: #1a1a1a;
    --text-gray: #4a5568;
    --text-muted: #718096;
    --accent-blue: #1e40af;
    --gradient-gold: linear-gradient(135deg, #d4af37, #f4e19c);
    --gradient-light: linear-gradient(135deg, #ffffff, #f8f9fa);
    --shadow-gold: 0 10px 30px rgba(212, 175, 55, 0.3);
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--light-bg);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
    line-height: 1.2;
}

.section-title {
    font-size: 3rem;
    background: var(--gradient-gold);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
    text-align: center;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-gray);
    text-align: center;
    margin-bottom: 3rem;
}

/* ===== SIGN-IN POPUP ===== */
.popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 1;
    visibility: visible;
    transition: var(--transition);
}

.popup-overlay.hidden {
    opacity: 0;
    visibility: hidden;
}

.popup-container {
    background: var(--light-bg);
    border-radius: 20px;
    padding: 2rem;
    max-width: 450px;
    width: 90%;
    position: relative;
    transform: scale(1);
    transition: var(--transition);
    border: 1px solid var(--primary-gold);
    box-shadow: var(--shadow-gold);
}

.popup-overlay.hidden .popup-container {
    transform: scale(0.9);
}

.popup-close {
    position: absolute;
    top: 15px;
    right: 20px;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--primary-gold);
    cursor: pointer;
    transition: var(--transition);
}

.popup-close:hover {
    transform: rotate(90deg);
    color: var(--secondary-gold);
}

.popup-header {
    text-align: center;
    margin-bottom: 2rem;
}

.popup-header h2 {
    color: var(--primary-gold);
    margin-bottom: 0.5rem;
}

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

.auth-tabs {
    display: flex;
    margin-bottom: 2rem;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--primary-gold);
}

.tab-btn {
    flex: 1;
    padding: 12px 20px;
    background: transparent;
    border: none;
    color: var(--text-gray);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

.tab-btn.active {
    background: var(--gradient-gold);
    color: var(--light-bg);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-group {
    position: relative;
}

.form-group input {
    width: 100%;
    padding: 15px 50px 15px 20px;
    background: var(--lighter-bg);
    border: 1px solid var(--text-muted);
    border-radius: 10px;
    color: var(--text-dark);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-gold);
    box-shadow: 0 0 10px rgba(212, 175, 55, 0.3);
}

.form-group i {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.auth-btn {
    padding: 15px 30px;
    background: var(--gradient-gold);
    border: none;
    border-radius: 10px;
    color: var(--light-bg);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 1rem;
}

.auth-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
}

.popup-footer {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--text-muted);
}

.popup-footer p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-soft);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-logo h2 {
    color: var(--text-dark);
    font-size: 1.8rem;
}

.nav-logo span {
    color: var(--primary-gold);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--primary-gold);
    margin: 3px 0;
    transition: var(--transition);
}

/* ===== HERO SECTION ===== */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../images/hero-background.jpg') center/cover;
    background-attachment: fixed;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9), rgba(248, 249, 250, 0.7));
}

.hero-content {
    text-align: center;
    z-index: 2;
    max-width: 800px;
    padding: 0 20px;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient-gold);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 2rem;
    font-weight: 400;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    padding: 18px 40px;
    background: var(--gradient-gold);
    border: none;
    border-radius: 50px;
    color: var(--light-bg);
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cta-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-gold);
}

.cta-btn i {
    transition: var(--transition);
}

.cta-btn:hover i {
    transform: translateX(5px);
}

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

.scroll-down {
    width: 2px;
    height: 50px;
    background: var(--gradient-gold);
    margin: 0 auto;
    position: relative;
    animation: scrollAnimation 2s infinite;
}

.scroll-down::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: var(--primary-gold);
    border-radius: 50%;
    animation: scrollDot 2s infinite;
}

@keyframes scrollAnimation {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

@keyframes scrollDot {
    0% { transform: translateX(-50%) translateY(0); }
    100% { transform: translateX(-50%) translateY(40px); }
}

/* ===== ABOUT SECTION ===== */
.about {
    padding: 100px 0;
    background: var(--lighter-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 3rem;
}

.about-text h3 {
    color: var(--primary-gold);
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.about-text p {
    color: var(--text-gray);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
}

.about-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2rem;
}

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

.stat-item h4 {
    font-size: 2.5rem;
    color: var(--primary-gold);
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.about-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-placeholder {
    width: 100%;
    height: 400px;
    background: var(--card-bg);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--primary-gold);
}

.image-placeholder i {
    font-size: 3rem;
    color: var(--primary-gold);
    margin-bottom: 1rem;
}

.image-placeholder p {
    color: var(--text-gray);
    font-size: 1.1rem;
}

/* ===== SERVICES SECTION ===== */
.services {
    padding: 100px 0;
    background: var(--light-bg);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: var(--card-bg);
    padding: 3rem 2rem;
    border-radius: 20px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
    cursor: pointer;
    box-shadow: var(--shadow-soft);
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-gold);
    box-shadow: var(--shadow-gold);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    transform: scale(1.1);
}

.service-icon i {
    font-size: 2rem;
    color: var(--light-bg);
}

.service-card h3 {
    color: var(--text-dark);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.service-card p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* ===== PORTFOLIO SECTION ===== */
.portfolio {
    padding: 100px 0;
    background: var(--lighter-bg);
}

.portfolio-filter {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 30px;
    background: transparent;
    border: 2px solid var(--primary-gold);
    border-radius: 50px;
    color: var(--primary-gold);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

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

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}

.portfolio-item:hover {
    transform: translateY(-5px);
}

.portfolio-image {
    position: relative;
    height: 300px;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
    transition: var(--transition);
}

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

.portfolio-image .image-placeholder {
    width: 100%;
    height: 100%;
    background: var(--card-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border: 2px dashed var(--primary-gold);
    border-radius: 0;
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.95), rgba(244, 225, 156, 0.9));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
    text-align: center;
    padding: 2rem;
}

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

.portfolio-overlay h4 {
    color: var(--light-bg);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.portfolio-overlay p {
    color: var(--light-bg);
    margin-bottom: 1.5rem;
    opacity: 0.9;
}

.view-btn {
    padding: 12px 25px;
    background: var(--light-bg);
    border: none;
    border-radius: 25px;
    color: var(--primary-gold);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
}

.view-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

/* ===== CONTACT SECTION ===== */
.contact {
    padding: 100px 0;
    background: var(--light-bg);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 3rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon i {
    color: var(--light-bg);
    font-size: 1.5rem;
}

.contact-details h4 {
    color: var(--primary-gold);
    margin-bottom: 0.5rem;
}

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

.whatsapp-contact {
    margin-top: 2rem;
}

.whatsapp-btn {
    display: inline-flex;
    align-items: center;
    gap: 15px;
    padding: 15px 30px;
    background: #25d366;
    color: white;
    text-decoration: none;
    border-radius: 50px;
    transition: var(--transition);
    font-weight: 600;
}

.whatsapp-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(37, 211, 102, 0.3);
}

.contact-form {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid var(--primary-gold);
    box-shadow: var(--shadow-soft);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.contact-form .form-group {
    margin-bottom: 1.5rem;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 15px 20px;
    background: var(--light-bg);
    border: 1px solid var(--text-muted);
    border-radius: 10px;
    color: var(--text-dark);
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-gold);
    box-shadow: 0 0 10px rgba(212, 175, 55, 0.3);
}

.contact-form textarea {
    resize: vertical;
    min-height: 120px;
}

.submit-btn {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 40px;
    background: var(--gradient-gold);
    border: none;
    border-radius: 50px;
    color: var(--light-bg);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 1rem;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
}

.map-container {
    margin-top: 4rem;
    border-radius: 20px;
    overflow: hidden;
    border: 2px solid var(--primary-gold);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--lighter-bg);
    padding: 50px 0 20px;
    border-top: 1px solid var(--primary-gold);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.footer-section h3 span {
    color: var(--primary-gold);
}

.footer-section h4 {
    color: var(--primary-gold);
    margin-bottom: 1rem;
}

.footer-section p {
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-section ul li i {
    color: var(--primary-gold);
    margin-right: 10px;
    width: 20px;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--gradient-gold);
    color: var(--light-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-gold);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--text-muted);
    color: var(--text-muted);
}

/* ===== FLOATING WHATSAPP ===== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
}

.whatsapp-float-btn {
    width: 60px;
    height: 60px;
    background: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    text-decoration: none;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.whatsapp-float-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(37, 211, 102, 0.6);
}

@keyframes pulse {
    0% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
    50% { box-shadow: 0 6px 30px rgba(37, 211, 102, 0.6); }
    100% { box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4); }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.98);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        box-shadow: var(--shadow-soft);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2.5rem;
    }

    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-stats {
        justify-content: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

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

    .form-row {
        grid-template-columns: 1fr;
    }

    .popup-container {
        margin: 20px;
        max-width: none;
    }

    .auth-tabs {
        flex-direction: column;
    }

    .whatsapp-float {
        bottom: 20px;
        right: 20px;
    }

    .whatsapp-float-btn {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
}

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

    .cta-btn {
        padding: 15px 30px;
        font-size: 1rem;
    }

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

    .service-card {
        padding: 2rem 1.5rem;
    }
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }

.hidden { display: none; }
.visible { display: block; }

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.fade-in-left {
    animation: fadeInLeft 0.6s ease-out;
}

.fade-in-right {
    animation: fadeInRight 0.6s ease-out;
}

/* Portfolio filter animation */
.portfolio-item {
    opacity: 1;
    transform: scale(1);
    transition: all 0.3s ease;
}

.portfolio-item.hide {
    opacity: 0;
    transform: scale(0.8);
}

/* Loading states */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.4), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { left: -100%; }
    100% { left: 100%; }
}