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

:root {
    --white: #ffffff;
    --yellow: #FFD700;
    --sky-blue: #87CEEB;
    --gray: #6B7280;
    --dark-gray: #4B5563;
    --black: #1F2937;
    --light-gray: #F3F4F6;
    --yellow-light: #FFF9E6;
    --sky-blue-light: #E0F2FE;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--black);
    background-color: var(--white);
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

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

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--sky-blue);
    text-decoration: none;
    transition: color 0.3s ease;
}

.logo-text:hover {
    color: var(--yellow);
}

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

.nav-link {
    color: var(--black);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--yellow);
    transition: width 0.3s ease;
}

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

.nav-link:hover {
    color: var(--sky-blue);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--black);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 80px;
    overflow: hidden;
    z-index: 1;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    /* Responsive image sizes - smaller for mobile */
    /* PHP script automatically serves WebP if browser supports it */
    background-image: url('optimize_image.php?img=HSbackground.png&w=768&q=85&format=webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: -2;
    /* Fallback gradient */
    background-color: var(--sky-blue-light);
}

/* Larger screens get higher resolution */
@media (min-width: 768px) {
    .hero-background {
        background-image: url('optimize_image.php?img=HSbackground.png&w=1280&q=85&format=webp');
    }
}

@media (min-width: 1200px) {
    .hero-background {
        background-image: url('optimize_image.php?img=HSbackground.png&w=1920&q=85&format=webp');
    }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(135, 206, 235, 0.1) 0%, transparent 50%);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
    padding: 2rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--dark-gray);
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

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

.btn {
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    display: inline-block;
    cursor: pointer;
}

.btn-primary {
    background: var(--yellow);
    color: var(--black);
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
}

.btn-primary:hover {
    background: var(--sky-blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(135, 206, 235, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--black);
    border: 2px solid var(--sky-blue);
}

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

.btn-block {
    width: 100%;
    text-align: center;
}

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

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--gray);
    border-radius: 15px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--gray);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

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

@keyframes scroll {
    0% { opacity: 1; top: 8px; }
    100% { opacity: 0; top: 20px; }
}

/* Section Styles */
section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 1rem;
}

.title-underline {
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, var(--yellow), var(--sky-blue));
    margin: 0 auto 1.5rem;
    border-radius: 2px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* About Section */
.about {
    background: var(--white);
    /* PHP script automatically serves WebP if browser supports it */
    background-image: url('optimize_image.php?img=HSbackground2.png&w=768&q=80&format=webp');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: scroll; /* Changed from fixed for mobile performance */
    position: relative;
    z-index: 2;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.85);
    z-index: -1;
}

@media (min-width: 768px) {
    .about {
        background-image: url('optimize_image.php?img=HSbackground2.png&w=1280&q=80&format=webp');
        background-attachment: fixed;
    }
}

@media (min-width: 1200px) {
    .about {
        background-image: url('optimize_image.php?img=HSbackground2.png&w=1920&q=80&format=webp');
    }
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: center;
}

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

.lead {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 1rem;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.stat-card {
    background: linear-gradient(135deg, var(--sky-blue-light), var(--yellow-light));
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s ease;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--sky-blue);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: var(--dark-gray);
    font-weight: 500;
}

/* Services Section */
.services {
    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: 15px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    border: 2px solid transparent;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(135, 206, 235, 0.2);
    border-color: var(--sky-blue);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 1rem;
}

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

/* Clients Section */
.clients {
    background: var(--white);
}

.clients-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.client-type {
    background: var(--light-gray);
    padding: 2.5rem;
    border-radius: 15px;
    transition: all 0.3s ease;
    border-left: 4px solid var(--yellow);
}

.client-type:hover {
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.client-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.client-type h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 1rem;
}

.client-type p {
    color: var(--dark-gray);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.benefits-list {
    list-style: none;
    padding: 0;
}

.benefits-list li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--gray);
}

.benefits-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--sky-blue);
    font-weight: bold;
}

/* Contact Section */
.contact {
    background: linear-gradient(135deg, var(--sky-blue-light) 0%, var(--yellow-light) 100%);
    /* PHP script automatically serves WebP if browser supports it */
    background-image: url('optimize_image.php?img=HSbackground3.png&w=768&q=80&format=webp'), linear-gradient(135deg, var(--sky-blue-light) 0%, var(--yellow-light) 100%);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-blend-mode: overlay;
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.7);
    z-index: 0;
}

.contact .container {
    position: relative;
    z-index: 1;
}

@media (min-width: 768px) {
    .contact {
        background-image: url('optimize_image.php?img=HSbackground3.png&w=1280&q=80&format=webp'), linear-gradient(135deg, var(--sky-blue-light) 0%, var(--yellow-light) 100%);
    }
}

@media (min-width: 1200px) {
    .contact {
        background-image: url('optimize_image.php?img=HSbackground3.png&w=1920&q=80&format=webp'), linear-gradient(135deg, var(--sky-blue-light) 0%, var(--yellow-light) 100%);
    }
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
}

.contact-info h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 1rem;
}

.contact-info p {
    color: var(--dark-gray);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-icon {
    font-size: 1.5rem;
    background: var(--white);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    flex-shrink: 0;
}

.contact-item strong {
    display: block;
    color: var(--black);
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: var(--gray);
    margin: 0;
}

.whatsapp-link {
    color: #25D366;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.whatsapp-link:hover {
    color: #128C7E;
    text-decoration: underline;
}

.email-link {
    color: var(--sky-blue);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.email-link:hover {
    color: var(--yellow);
    text-decoration: underline;
}

.contact-form {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--light-gray);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--sky-blue);
    box-shadow: 0 0 0 3px rgba(135, 206, 235, 0.1);
}

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

.services-checklist {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
    padding: 1rem;
    background: var(--light-gray);
    border-radius: 8px;
    max-height: 300px;
    overflow-y: auto;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-item input[type="checkbox"] {
    width: auto;
    margin: 0;
    cursor: pointer;
    accent-color: var(--sky-blue);
}

.checkbox-item label {
    margin: 0;
    cursor: pointer;
    color: var(--dark-gray);
    font-weight: normal;
    user-select: none;
}

.checkbox-item input[type="checkbox"]:checked + label {
    color: var(--black);
    font-weight: 500;
}

.checkbox-item:hover label {
    color: var(--sky-blue);
}

/* Footer */
.footer {
    background: var(--black);
    color: var(--white);
    padding: 3rem 0 1.5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--yellow);
}

.footer-section p {
    color: var(--gray);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

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

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

.footer-section a {
    color: var(--gray);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--gray);
}

/* Animations */
.fade-in {
    animation: fadeIn 1s ease-out;
}

.fade-in-delay {
    animation: fadeIn 1s ease-out 0.3s both;
}

.fade-in-delay-2 {
    animation: fadeIn 1s ease-out 0.6s both;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll Animations */
.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.scroll-animate.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: 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;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

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

    .menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

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

    .hero-subtitle {
        font-size: 1.1rem;
    }

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

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

    .about-stats {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .stat-card {
        flex: 1 1 calc(50% - 0.75rem);
    }

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

    .clients-content {
        grid-template-columns: 1fr;
    }

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

    .contact-form {
        padding: 1.5rem;
    }

    .services-checklist {
        grid-template-columns: 1fr;
        max-height: none;
    }

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

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

    .hero-subtitle {
        font-size: 1rem;
    }

    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.9rem;
    }

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

    .stat-card {
        flex: 1 1 100%;
    }

    section {
        padding: 3rem 0;
    }
}

/* Smooth Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--light-gray);
}

::-webkit-scrollbar-thumb {
    background: var(--sky-blue);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--yellow);
}