/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-red: #dc2626;
    --primary-blue: #2563eb;
    --dark-blue: #1e40af;
    --light-red: #fef2f2;
    --light-blue: #dbeafe;
    --dark-gray: #374151;
    --medium-gray: #6b7280;
    --light-gray: #f3f4f6;
    --white: #ffffff;
    --whatsapp-green: #25d366;
    --whatsapp-dark: #128C7E;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-gray);
    scroll-behavior: smooth;
}

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

/* Header Styles */
.header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.nav-brand h2 {
    color: var(--primary-red);
    font-size: 1.8rem;
    margin-bottom: 0.2rem;
}

.nav-brand span {
    color: var(--primary-blue);
    font-size: 0.9rem;
    font-weight: 500;
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 500;
    transition: color 0.3s;
    padding: 0.5rem 1rem;
    border-radius: 5px;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--primary-red);
    background: var(--light-red);
}

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--dark-gray);
    margin: 3px 0;
    transition: 0.3s;
}
.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.nav-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
}


/* Button Styles */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background: var(--primary-red);
    color: var(--white);
}

.btn-primary:hover {
    background: #b91c1c;
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--primary-blue);
    color: var(--white);
}

.btn-secondary:hover {
    background: var(--dark-blue);
    transform: translateY(-2px);
}

.btn-whatsapp {
    background: var(--whatsapp-green) !important;
    color: var(--white) !important;
}

.btn-whatsapp:hover {
    background: var(--whatsapp-dark) !important;
    transform: translateY(-2px);
}

.btn-emergency {
    background: #dc2626;
    color: white;
    padding: 15px 25px;
    font-size: 1.1rem;
    animation: pulse 2s infinite;
}

.btn-full {
    width: 100%;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
    color: var(--white);
    padding: 150px 0 100px;
    margin-top: 80px;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    font-weight: 300;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Section Styles */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--dark-gray);
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--medium-gray);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Services Grid */
.services-highlight {
    padding: 80px 0;
    background: var(--light-gray);
}

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

.service-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--light-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--primary-red);
    font-size: 2rem;
}

.service-icon.large {
    width: 100px;
    height: 100px;
    font-size: 2.5rem;
}

.service-card h3 {
    margin-bottom: 1rem;
    color: var(--dark-gray);
}

.service-card p {
    color: var(--medium-gray);
    margin-bottom: 1rem;
}

.price {
    color: var(--primary-red);
    font-weight: 700;
    font-size: 1.1rem;
}

/* Why Choose Section */
.why-choose {
    padding: 80px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature {
    text-align: center;
    padding: 2rem;
}

.feature i {
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.feature h3 {
    margin-bottom: 1rem;
    color: var(--dark-gray);
}

/* About Section */
.about-content {
    padding: 80px 0;
}

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

.about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--dark-gray);
}

.lead {
    font-size: 1.3rem;
    color: var(--primary-blue);
    margin-bottom: 2rem;
    font-weight: 500;
}

.about-features {
    margin-top: 2rem;
}

.feature-item {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.feature-item i {
    color: var(--primary-red);
    margin-right: 1rem;
}

.about-img {
    width: 100%;
    max-width: 450px;
    border-radius: 10px;
    display: block;
    margin: 0 auto 1rem;
}


.image-placeholder i {
    font-size: 4rem;
    color: var(--medium-gray);
    margin-bottom: 1rem;
}

/* Stats Section */
.stats-section {
    background: var(--light-blue);
    padding: 80px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat h3 {
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
}

/* Projects Gallery Section */
.projects-gallery {
    padding: 80px 0;
    background: var(--white);
}

/* Gallery Filter */
.gallery-filter {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3rem;
}

.filter-btn {
    padding: 10px 20px;
    border: 2px solid var(--primary-blue);
    background: transparent;
    color: var(--primary-blue);
    border-radius: 25px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
}

/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.project-card {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
}

.project-image {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 0%, rgba(0,0,0,0.8) 100%);
    display: flex;
    align-items: flex-end;
    padding: 2rem;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.project-info h3 {
    color: var(--white);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.project-info p {
    color: #e5e7eb;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.project-location {
    color: var(--primary-red);
    font-weight: 600;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
}

.project-location::before {
    content: "📍";
    margin-right: 0.5rem;
}

/* Gallery CTA */
.gallery-cta {
    text-align: center;
    padding: 3rem;
    background: var(--light-gray);
    border-radius: 10px;
    margin-top: 2rem;
}

.gallery-cta p {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--dark-gray);
}

/* Project Card Animations */
.project-card {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s ease forwards;
}

.project-card:nth-child(1) { animation-delay: 0.1s; }
.project-card:nth-child(2) { animation-delay: 0.2s; }
.project-card:nth-child(3) { animation-delay: 0.3s; }
.project-card:nth-child(4) { animation-delay: 0.4s; }
.project-card:nth-child(5) { animation-delay: 0.5s; }
.project-card:nth-child(6) { animation-delay: 0.6s; }

/* Contact CTA */
.contact-cta {
    background: linear-gradient(135deg, var(--primary-red) 0%, #b91c1c 100%);
    color: var(--white);
    padding: 80px 0;
    text-align: center;
}

.contact-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.contact-cta p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

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

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

.contact-info h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--dark-gray);
}

.contact-method {
    display: flex;
    align-items: center;
    margin: 2rem 0;
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--light-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    color: var(--primary-blue);
    font-size: 1.5rem;
}

.contact-details h3 {
    margin-bottom: 0.5rem;
    color: var(--dark-gray);
}

.business-hours {
    margin-top: 2rem;
    padding: 2rem;
    background: var(--light-gray);
    border-radius: 10px;
}

.business-hours h3 {
    margin-bottom: 1rem;
    color: var(--dark-gray);
}

/* Contact Form */
.contact-form {
    background: var(--white);
    padding: 3rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.contact-form h2 {
    margin-bottom: 2rem;
    color: var(--dark-gray);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--dark-gray);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #d1d5db;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

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

/* Alert Messages */
.alert {
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1.5rem;
    display: none;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.alert-error {
    background: #fee2e2;
    color: #b91c1c;
    border: 1px solid #fca5a5;
}

/* Gas Safety Tips */
.safety-tips {
    background: var(--light-gray);
    padding: 80px 0;
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.tip-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.tip-card:hover {
    transform: translateY(-5px);
}

.tip-icon {
    width: 70px;
    height: 70px;
    background: var(--light-blue);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--primary-blue);
    font-size: 1.8rem;
}

/* Emergency Banner */
.emergency-banner {
    background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
    color: var(--white);
    padding: 3rem 0;
}

.emergency-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.emergency-text h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.emergency-text h3 i {
    margin-right: 0.5rem;
}

/* Footer */
.footer {
    background: var(--dark-gray);
    color: var(--white);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--white);
}

.footer-section p {
    margin-bottom: 0.5rem;
    color: #d1d5db;
}

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

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

.footer-section ul li a {
    color: #d1d5db;
    text-decoration: none;
    transition: color 0.3s;
}

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

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

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--primary-red);
    transform: translateY(-2px);
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: 20px;
}

.footer-bottom p {
    margin-bottom: 0.5rem;
    color: #d1d5db;
}

.developer-credit {
    margin-top: 10px;
    font-size: 0.9rem;
    opacity: 0.8;
}

.developer-credit a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s ease;
}

.developer-credit a:hover {
    color: var(--primary-red);
    text-decoration: underline;
}

/* Floating Buttons */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    background-color: var(--whatsapp-green);
    color: var(--white);
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 3px #999;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    animation: float 3s ease-in-out infinite;
}

.call-float {
    position: fixed;
    width: 50px;
    height: 50px;
    bottom: 110px;
    right: 45px;
    background-color: var(--primary-red);
    color: var(--white);
    border-radius: 50px;
    text-align: center;
    font-size: 20px;
    box-shadow: 2px 2px 3px #999;
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

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

@keyframes flame {
    0%, 100% { transform: scale(1) rotate(0deg); }
    25% { transform: scale(1.1) rotate(-5deg); }
    50% { transform: scale(1.05) rotate(5deg); }
    75% { transform: scale(1.1) rotate(-3deg); }
}

@keyframes wrench {
    0% { transform: rotate(0deg); }
    25% { transform: rotate(15deg); }
    50% { transform: rotate(0deg); }
    75% { transform: rotate(-15deg); }
    100% { transform: rotate(0deg); }
}

@keyframes drop {
    0% { transform: translateY(0); }
    50% { transform: translateY(5px); }
    100% { transform: translateY(0); }
}

@keyframes shield {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

@keyframes clock {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes money {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

@keyframes award {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

/* Hero Animations */
.hero-title {
    animation: fadeInUp 1s ease-out;
}

.hero-subtitle {
    animation: fadeInUp 1s ease-out 0.3s both;
}

.hero-description {
    animation: fadeInUp 1s ease-out 0.6s both;
}

.hero-buttons {
    animation: fadeInUp 1s ease-out 0.9s both;
}

/* Service Icon Animations */
.flame-animation {
    animation: flame 2s ease-in-out infinite;
}

.wrench-animation {
    animation: wrench 3s ease-in-out infinite;
}

.drop-animation {
    animation: drop 2s ease-in-out infinite;
}

/* Feature Icon Animations */
.shield-animation {
    animation: shield 3s ease-in-out infinite;
}

.clock-animation {
    animation: clock 8s linear infinite;
}

.money-animation {
    animation: money 2s ease-in-out infinite;
}

.award-animation {
    animation: award 2s ease-in-out infinite;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 20px;
    left: 20px;
    background: var(--primary-blue);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    opacity: 0;
    transition: opacity 0.3s;
    z-index: 1000;
}

.back-to-top.visible {
    opacity: 1;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0,0,0,0.05);
        padding: 2rem 0;
    }

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

    .nav-toggle {
        display: flex;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

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

    .emergency-content {
        flex-direction: column;
        text-align: center;
    }

    .call-float {
        display: flex;
    }

    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 30px;
        right: 30px;
        font-size: 24px;
    }

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

    /* Gallery Responsive */
    .gallery-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 1.5rem;
    }
    
    .project-image {
        height: 250px;
    }
    
    .gallery-filter {
        gap: 0.5rem;
    }
    
    .filter-btn {
        padding: 8px 16px;
        font-size: 0.9rem;
    }
    
    .gallery-cta {
        padding: 2rem 1rem;
    }
    
    .gallery-cta p {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 120px 0 60px;
    }

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

    .contact-form {
        padding: 2rem 1.5rem;
    }

    /* Gallery Mobile */
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .project-image {
        height: 200px;
    }
}