:root {
    --primary-red: #E74C3C;
    --primary-orange: #F39C12;
    --secondary-green: #27AE60;
    --secondary-yellow: #F1C40F;
    --dark-gray: #2C3E50;
    --light-gray: #ECF0F1;
    --white: #FFFFFF;
    --text-dark: #333333;
    --text-light: #666666;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 20px rgba(0,0,0,0.15);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Open Sans', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

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

/* Navigation */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

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

a.logo {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    transition: var(--transition);
}

a.logo:hover {
    opacity: 0.9;
}

.logo {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1.8rem;
    color: var(--primary-red);
    letter-spacing: 2px;
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--text-light);
    letter-spacing: 1px;
}

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

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

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

.nav-menu a:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    margin: 3px 0;
    transition: var(--transition);
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    margin-top: 70px;
    position: relative;
    overflow: hidden;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero-overlay {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.9) 0%, rgba(243, 156, 18, 0.8) 100%);
    z-index: 1;
}

.hero-content {
    text-align: center;
    color: var(--white);
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 300;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-description {
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto 2rem;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    animation: fadeInUp 0.8s ease 0.6s both;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

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

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

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

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

.btn-large {
    padding: 15px 40px;
    font-size: 1.1rem;
}

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

/* Contact Form Submit Button */
.contact-form .btn-primary {
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-orange) 100%);
    color: var(--white);
    border: none;
    padding: 15px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.contact-form .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(231, 76, 60, 0.3);
}

.contact-form .btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.contact-form .btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.contact-form .btn-primary:hover::before {
    left: 100%;
}

/* Sections */
.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--dark-gray);
}

.section-subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

/* About Section */
.about {
    padding: 80px 0;
    background: var(--light-gray);
}

.about-image-banner {
    width: 100%;
    height: 400px;
    overflow: hidden;
    margin: -80px 0 3rem 0;
}

.about-image-banner img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: all 0.5s ease;
}

.about-image-banner:hover img {
    filter: grayscale(0%);
    transform: scale(1.02);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.about-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.about-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    color: var(--primary-orange);
    margin-bottom: 1rem;
}

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

.about-card p {
    color: var(--text-light);
}

/* Services Section */
.services {
    padding: 80px 0;
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
}

.service-card {
    background: var(--white);
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    padding: 1rem;
}

.service-image {
    width: 100%;
    height: 180px;
    overflow: hidden;
    border-radius: 15px 15px 0 0;
    margin: -1rem -1rem 0.5rem -1rem;
}

.service-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%);
    transition: all 0.4s ease;
}

.service-card:hover .service-image img {
    filter: grayscale(0%);
    transform: scale(1.05);
}

.service-content {
    padding: 0.5rem;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
}

.service-card.discover::before {
    background: var(--primary-red);
}

.service-card.actualize::before {
    background: var(--primary-orange);
}

.service-card.relate::before {
    background: var(--secondary-green);
}

.service-card.excel::before {
    background: var(--secondary-yellow);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.service-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.service-header h3 {
    color: var(--dark-gray);
    font-size: 1.5rem;
}

.service-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--white);
}

.discover .service-icon {
    background: var(--primary-red);
}

.actualize .service-icon {
    background: var(--primary-orange);
}

.relate .service-icon {
    background: var(--secondary-green);
}

.excel .service-icon {
    background: var(--secondary-yellow);
}

.service-description {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-size: 0.9rem;
    line-height: 1.4;
}

.service-list {
    list-style: none;
    margin-bottom: 1rem;
    font-size: 0.85rem;
}

.service-list li {
    padding: 0.3rem 0;
    color: var(--text-dark);
    position: relative;
    padding-left: 1.2rem;
    font-size: 0.85rem;
}

.service-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-orange);
    font-weight: 700;
}

.service-link {
    color: var(--primary-red);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.service-link:hover {
    color: var(--primary-orange);
}

/* Pain Points Section */
.pain-points {
    padding: 80px 0;
    background: var(--light-gray);
}

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.challenge-item {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    border-left: 4px solid var(--primary-orange);
    transition: var(--transition);
}

.challenge-item:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

.challenge-item h4 {
    color: var(--dark-gray);
    margin-bottom: 0.5rem;
}

.challenge-item p {
    color: var(--text-light);
}

/* Portfolio Section */
.portfolio {
    padding: 80px 0;
    background: var(--white);
}

.portfolio-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0 3rem 0;
}

.portfolio-images img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-radius: 10px;
    filter: grayscale(100%);
    transition: all 0.4s ease;
    cursor: pointer;
}

.portfolio-images img:hover {
    filter: grayscale(0%);
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-red);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    text-align: center;
    color: var(--white);
    position: relative;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.cta-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(243, 156, 18, 0.9) 0%, rgba(241, 196, 15, 0.85) 100%);
    z-index: 1;
}

.cta-section .container {
    position: relative;
    z-index: 2;
}

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

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

/* Contact Section */
.contact {
    padding: 80px 0;
    background: var(--light-gray);
}

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

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

.contact-info p {
    color: var(--text-light);
    margin-bottom: 2rem;
}

.contact-details {
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.contact-item svg {
    color: var(--primary-orange);
}

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

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

.social-links a:hover {
    background: var(--primary-orange);
    transform: translateY(-3px);
}

/* Contact Form */
.contact-form {
    background: var(--white);
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow-md);
}

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--light-gray);
    border-radius: 5px;
    font-size: 1rem;
    transition: var(--transition);
    background: var(--white);
}

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

.form-group label {
    position: absolute;
    left: 12px;
    top: 12px;
    color: var(--text-light);
    transition: var(--transition);
    pointer-events: none;
}

.form-group input:focus + label,
.form-group input:not(:placeholder-shown) + label,
.form-group textarea:focus + label,
.form-group textarea:not(:placeholder-shown) + label {
    top: -10px;
    left: 10px;
    font-size: 0.85rem;
    color: var(--primary-orange);
    background: var(--white);
    padding: 0 5px;
}

/* Footer */
.footer {
    background: var(--dark-gray);
    color: var(--white);
    padding: 40px 0;
}

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

.footer-logo {
    margin-bottom: 2rem;
}

.footer-logo .logo-text {
    color: var(--primary-orange);
}

.footer-logo .logo-subtitle {
    color: var(--light-gray);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--light-gray);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-orange);
}

.footer-copyright {
    color: var(--text-light);
}

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

/* Responsive Design */
@media (max-width: 1200px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .challenges-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-md);
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .challenges-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
}

/* Notification System */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    max-width: 400px;
    padding: 16px 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    z-index: 10000;
    animation: slideIn 0.3s ease;
    font-size: 14px;
    line-height: 1.5;
}

.notification-success {
    background: linear-gradient(135deg, #52c41a 0%, #73d13d 100%);
    color: white;
}

.notification-error {
    background: linear-gradient(135deg, #ff4d4f 0%, #ff7875 100%);
    color: white;
}

.notification-warning {
    background: linear-gradient(135deg, #faad14 0%, #ffc53d 100%);
    color: white;
}

.notification-info {
    background: linear-gradient(135deg, #1890ff 0%, #40a9ff 100%);
    color: white;
}