/* Reset y Variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --blue-950: #0A1F44;
    --blue-900: #0F2D5C;
    --blue-800: #1E3A6D;
    --blue-700: #2B4A7E;
    --blue-600: #1D4ED8;
    --blue-500: #3B82F6;
    --blue-400: #60A5FA;
    --blue-300: #93C5FD;
    --blue-200: #BFDBFE;
    --blue-100: #DBEAFE;
    --blue-50: #EFF6FF;
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-700: #374151;
    --gray-900: #111827;
    --white: #FFFFFF;
    --silver: #C0C0C0;
    --gold: #FFD700;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Helvetica Neue', sans-serif;
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--white);
}

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

/* Header */
.header {
    background: linear-gradient(135deg, var(--blue-950) 0%, var(--blue-800) 100%);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-cooper {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 0.05em;
}

.logo-blue {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--blue-200);
    letter-spacing: 0.1em;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--blue-100);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--white);
}

.language-selector {
    display: flex;
    gap: 0.5rem;
}

.lang-btn {
    padding: 0.5rem 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    color: var(--blue-100);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 600;
    transition: all 0.3s;
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
}

.lang-btn.active {
    background: var(--blue-600);
    color: var(--white);
    border-color: var(--blue-600);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--blue-950) 0%, var(--blue-700) 50%, var(--blue-600) 100%);
    color: var(--white);
    padding: 6rem 0;
    text-align: center;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    margin-bottom: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--blue-100);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-description {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    color: var(--blue-100);
    line-height: 1.6;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--blue-600);
    color: var(--white);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
    background: var(--blue-500);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

/* Sections */
.section {
    padding: 5rem 0;
}

.section-alt {
    background: var(--gray-50);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--blue-950);
    margin-bottom: 2rem;
    text-align: center;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--gray-700);
    text-align: center;
    margin-bottom: 3rem;
}

.subsection-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--blue-900);
    margin: 3rem 0 2rem;
    text-align: center;
}

/* Content Cards */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.content-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.section-alt .content-card {
    background: var(--white);
}

.content-card p {
    color: var(--gray-700);
    font-size: 1rem;
    line-height: 1.8;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-card {
    background: linear-gradient(135deg, var(--blue-600) 0%, var(--blue-700) 100%);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    color: var(--white);
    box-shadow: 0 4px 12px rgba(29, 78, 216, 0.3);
}

.stat-label {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--blue-100);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--white);
}

/* Mechanism Grid */
.mechanism-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.mechanism-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.mechanism-card h3 {
    font-size: 1.5rem;
    color: var(--blue-900);
    margin-bottom: 1rem;
}

.mechanism-card p {
    color: var(--gray-700);
    margin-bottom: 1rem;
}

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

.benefit-list li {
    padding: 0.75rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--gray-700);
}

.benefit-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--blue-600);
    font-weight: 700;
    font-size: 1.25rem;
}

.steps-list {
    margin: 1.5rem 0;
}

.step-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.step-number {
    flex-shrink: 0;
    width: 2rem;
    height: 2rem;
    background: var(--blue-600);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.step-item p {
    flex: 1;
    margin: 0;
}

.conclusion {
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--blue-50);
    border-left: 4px solid var(--blue-600);
    border-radius: 4px;
    color: var(--blue-900);
    font-weight: 500;
}

/* Installation Grid */
.installation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.installation-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.installation-number {
    width: 3rem;
    height: 3rem;
    background: linear-gradient(135deg, var(--blue-600) 0%, var(--blue-700) 100%);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
}

.installation-card h4 {
    font-size: 1.25rem;
    color: var(--blue-900);
    margin-bottom: 1rem;
}

.installation-card p {
    color: var(--gray-700);
    line-height: 1.6;
}

/* Guarantees Table */
.table-responsive {
    overflow-x: auto;
    margin: 2rem 0;
}

.guarantees-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.guarantees-table thead {
    background: linear-gradient(135deg, var(--blue-600) 0%, var(--blue-700) 100%);
    color: var(--white);
}

.guarantees-table th {
    padding: 1.25rem;
    text-align: left;
    font-weight: 600;
    font-size: 1rem;
}

.guarantees-table td {
    padding: 1.25rem;
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-700);
}

.guarantees-table tbody tr:last-child td {
    border-bottom: none;
}

.guarantees-table tbody tr:hover {
    background: var(--blue-50);
}

.guarantee-conclusion {
    text-align: center;
    font-size: 1.125rem;
    color: var(--blue-900);
    font-weight: 600;
    margin-top: 2rem;
    padding: 1.5rem;
    background: var(--blue-50);
    border-radius: 8px;
}

/* Clients Grid */
.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.client-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.client-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

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

.client-card h4 {
    font-size: 1.125rem;
    color: var(--blue-900);
    margin-bottom: 0.5rem;
}

.client-savings {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--blue-600);
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.contact-info {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.contact-info h3 {
    font-size: 1.5rem;
    color: var(--blue-900);
    margin-bottom: 2rem;
}

.info-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.info-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.info-item h4 {
    font-size: 1rem;
    color: var(--blue-900);
    margin-bottom: 0.25rem;
}

.info-item p {
    color: var(--gray-700);
}

.contact-form-container {
    background: linear-gradient(135deg, var(--blue-600) 0%, var(--blue-700) 100%);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(29, 78, 216, 0.3);
}

.contact-form-container h3 {
    font-size: 1.5rem;
    color: var(--white);
    margin-bottom: 2rem;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    transition: all 0.3s;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--white);
}

.submit-button {
    width: 100%;
    padding: 1rem;
    background: var(--white);
    color: var(--blue-600);
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.submit-button:hover {
    background: var(--blue-50);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.submit-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--blue-950) 0%, var(--blue-800) 100%);
    color: var(--white);
    padding: 3rem 0;
}

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

.footer-logo img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.footer-info {
    text-align: right;
}

.footer-info p {
    margin-bottom: 0.5rem;
    color: var(--blue-200);
}

.footer-small {
    font-size: 0.875rem;
    color: var(--blue-300);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }
    
    .language-selector {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1.125rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .subsection-title {
        font-size: 1.5rem;
    }
    
    .content-grid,
    .stats-grid,
    .mechanism-grid,
    .installation-grid,
    .clients-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-info {
        text-align: center;
    }
}

/* Animaciones */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content-card,
.stat-card,
.mechanism-card,
.installation-card,
.client-card {
    animation: fadeInUp 0.6s ease-out;
}