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

 :root {
     --primary-color: #2563eb;
     --secondary-color: #0f766e;
     --accent-color: #f59e0b;
     --danger-color: #ef4444;
     --success-color: #10b981;
     --text-primary: #1f2937;
     --text-secondary: #6b7280;
     --bg-light: #f9fafb;
     --bg-white: #ffffff;
     --border-color: #e5e7eb;
     --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
     --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
 }

 html,
body {
     width: 100%;
     min-width: 100%;
     overflow-x: hidden;
 }

body {
     font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
     line-height: 1.6;
     color: var(--text-primary);
     background: var(--bg-light);
 }

 /* Header & Navigation */
 header {
     background: var(--bg-white);
     box-shadow: var(--shadow);
     position: sticky;
     top: 0;
     z-index: 100;
 }

 nav {
     max-width: 1200px;
     margin: 0 auto;
     padding: 1rem 2rem;
     display: flex;
     justify-content: space-between;
     align-items: center;
 }

 .logo {
     font-size: 1.8rem;
     font-weight: 700;
     color: var(--primary-color);
     max-width: 180px;
 }

.logo img {
     display: block;
     width: 100%;
     max-width: 180px;
     height: auto;
 }

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

nav a {
     text-decoration: none;
     color: var(--text-primary);
     font-weight: 500;
     transition: color 0.3s, background 0.3s;
 }

nav a:hover {
     color: var(--primary-color);
 }

.nav-toggle {
     display: none;
     background: none;
     border: none;
     cursor: pointer;
     padding: 0.25rem;
     width: 42px;
     height: 42px;
     flex-direction: column;
     justify-content: center;
     gap: 6px;
 }

.nav-toggle span {
     display: block;
     width: 100%;
     height: 3px;
     background: var(--text-primary);
     border-radius: 999px;
     transition: transform 0.3s ease, opacity 0.3s ease;
 }

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

nav.open .nav-toggle span:nth-child(2) {
     opacity: 0;
 }

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

@media (max-width: 768px) {
     nav {
         flex-direction: column;
         align-items: center;
         gap: 1rem;
         padding: 1.25rem 1rem 1rem 1rem;
         position: relative;
     }

     .nav-toggle {
         display: flex;
         position: absolute;
         top: 0.75rem;
         left: 0.75rem;
         z-index: 10;
     }

     .logo {
         max-width: 140px;
         margin: 0 auto;
     }

     nav ul {
         display: none;
         flex-wrap: wrap;
         gap: 0.75rem;
         width: 100%;
         flex-direction: column;
         background: var(--bg-white);
         padding: 0.85rem 0.75rem;
         border-radius: 0.85rem;
         border: 1px solid var(--border-color);
         box-shadow: var(--shadow);
     }

     nav.open ul {
         display: flex;
     }

     nav li {
         flex: 1 1 auto;
     }

     nav a {
         display: block;
         padding: 0.5rem 0.75rem;
         border-radius: 0.5rem;
     }
}

@media (max-width: 590px) {
     .logo {
         max-width: 120px;
     }

     nav {
         padding: 1.4rem 0.9rem 1rem 1rem;
     }

     nav ul {
         justify-content: center;
     }
}

@media (max-width: 425px) {
     .logo {
         max-width: 100px;
     }

     .nav-toggle {
         top: 0.6rem;
         left: 0.6rem;
     }

     nav {
         padding: 1.1rem 0.8rem 1rem 0.95rem;
     }

     nav ul {
         flex-direction: column;
         align-items: stretch;
         gap: 0.6rem;
     }

     nav a {
         text-align: center;
         padding: 0.6rem 0.75rem;
     }
}
 .hero {
     background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
     color: white;
     padding: 4rem 2rem;
     text-align: center;
 }

 .hero h1 {
     font-size: 2.5rem;
     margin-bottom: 1rem;
 }

 .hero p {
     font-size: 1.2rem;
     margin-bottom: 2rem;
     opacity: 0.95;
 }

 .cta-button {
     display: inline-block;
     background: var(--accent-color);
     color: white;
     padding: 0.8rem 2rem;
     border-radius: 0.5rem;
     text-decoration: none;
     font-weight: 600;
     transition: background 0.3s;
     border: none;
     cursor: pointer;
 }

 .cta-button:hover {
     background: #f97316;
 }

 /* Container */
 .container {
     max-width: 1200px;
     margin: 0 auto;
     padding: 0 2rem;
 }

 /* Services Section */
 .services {
     padding: 4rem 0;
     background: var(--bg-white);
     margin: 2rem 0;
 }

 .section-title {
     text-align: center;
     font-size: 2rem;
     margin-bottom: 3rem;
     color: var(--text-primary);
 }

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

 .service-card {
     background: var(--bg-white);
     padding: 2rem;
     border-radius: 0.8rem;
     border: 2px solid var(--border-color);
     text-align: center;
     transition: transform 0.3s, box-shadow 0.3s;
     cursor: pointer;
 }

 .service-card:hover {
     transform: translateY(-5px);
     box-shadow: var(--shadow-lg);
     border-color: var(--primary-color);
 }

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

 .service-card h3 {
     font-size: 1.3rem;
     margin-bottom: 1rem;
     color: var(--primary-color);
 }

 .service-card p {
     color: var(--text-secondary);
     margin-bottom: 1.5rem;
 }

 /* Tabs for Services */
 .tabs {
     display: flex;
     gap: 1rem;
     margin-bottom: 2rem;
     border-bottom: 2px solid var(--border-color);
     flex-wrap: wrap;
 }

 .tab-button {
     padding: 1rem 1.5rem;
     border: none;
     background: transparent;
     cursor: pointer;
     font-weight: 600;
     color: var(--text-secondary);
     border-bottom: 3px solid transparent;
     transition: all 0.3s;
 }

 .tab-button.active {
     color: var(--primary-color);
     border-bottom-color: var(--primary-color);
 }

 .tab-button:hover {
     color: var(--primary-color);
 }

 .tab-content {
     display: none;
     animation: fadeIn 0.3s;
 }

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

 @keyframes fadeIn {
     from {
         opacity: 0;
     }

     to {
         opacity: 1;
     }
 }

 /* Forms */
 .form-container {
     background: var(--bg-white);
     padding: 2rem;
     border-radius: 0.8rem;
     box-shadow: var(--shadow);
 }

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

 label {
     display: block;
     margin-bottom: 0.5rem;
     font-weight: 600;
     color: var(--text-primary);
 }

 input,
 textarea,
 select {
     width: 100%;
     padding: 0.8rem;
     border: 2px solid var(--border-color);
     border-radius: 0.5rem;
     font-family: inherit;
     font-size: 1rem;
     transition: border-color 0.3s;
 }

 input:focus,
 textarea:focus,
 select:focus {
     outline: none;
     border-color: var(--primary-color);
     box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
 }

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

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

 .submit-button {
     background: var(--primary-color);
     color: white;
     padding: 1rem 2rem;
     border: none;
     border-radius: 0.5rem;
     font-weight: 600;
     font-size: 1rem;
     cursor: pointer;
     transition: background 0.3s;
     width: 100%;
 }

 .submit-button:hover {
     background: #1d4ed8;
 }

 .submit-button:active {
     transform: scale(0.98);
 }

 /* Success Message */
 .success-message {
     display: none;
     background: #d1fae5;
     color: #065f46;
     padding: 1rem;
     border-radius: 0.5rem;
     margin-bottom: 1rem;
     border-left: 4px solid var(--success-color);
 }

 .success-message.show {
     display: block;
 }

 /* Contact Section */
 .contact-section {
     padding: 4rem 0;
 }

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

 .contact-info {
     background: var(--bg-white);
     padding: 2rem;
     border-radius: 0.8rem;
     box-shadow: var(--shadow);
 }

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

 .contact-icon {
     font-size: 1.5rem;
     color: var(--primary-color);
     flex-shrink: 0;
     width: 2rem;
     height: 2rem;
     display: flex;
     align-items: center;
     justify-content: center;
 }

 .contact-item h4 {
     font-size: 1.1rem;
     margin-bottom: 0.5rem;
     color: var(--text-primary);
 }

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

 .contact-item a {
     color: var(--primary-color);
     text-decoration: none;
     font-weight: 600;
 }

 .contact-item a:hover {
     text-decoration: underline;
 }

 .social-links {
     display: flex;
     gap: 1rem;
     margin-top: 2rem;
 }

 .social-link {
     width: 2.5rem;
     height: 2.5rem;
     border-radius: 50%;
     background: var(--primary-color);
     color: white;
     display: flex;
     align-items: center;
     justify-content: center;
     text-decoration: none;
     font-weight: 600;
     transition: background 0.3s;
 }

 .social-link.whatsapp {
     background: #29a71a;
 }

 .social-link:hover {
     background: var(--secondary-color);
 }

 /* Testimonials */
 .testimonials {
     background: var(--bg-white);
     padding: 4rem 0;
     margin: 2rem 0;
 }

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

 .testimonial-card {
     background: var(--bg-light);
     padding: 1.5rem;
     border-radius: 0.8rem;
     border-left: 4px solid var(--accent-color);
 }

 .stars {
     color: var(--accent-color);
     margin-bottom: 0.5rem;
     font-size: 1rem;
 }

 .testimonial-card p {
     color: var(--text-secondary);
     margin-bottom: 1rem;
     font-style: italic;
 }

 .testimonial-author {
     font-weight: 600;
     color: var(--text-primary);
 }

 /* Footer */
 footer {
     background: var(--text-primary);
     color: white;
     padding: 3rem 0 1rem;
     margin-top: 4rem;
 }

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

 .footer-section h4 {
     margin-bottom: 1rem;
 }

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

 .footer-section a {
     color: #d1d5db;
     text-decoration: none;
     transition: color 0.3s;
     display: block;
     margin-bottom: 0.5rem;
 }

 .footer-section a:hover {
     color: white;
 }

 .footer-bottom {
     text-align: center;
     padding-top: 2rem;
     border-top: 1px solid rgba(255, 255, 255, 0.1);
     color: #9ca3af;
 }

 /* Responsive */
 @media (max-width: 768px) {
     nav ul {
         gap: 1rem;
         font-size: 0.9rem;
     }

     .hero h1 {
         font-size: 1.8rem;
     }

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

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

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

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

     .tabs {
         gap: 0;
         border-bottom: none;
     }

     .tab-button {
         flex: 1;
         padding: 0.8rem;
         border: 2px solid var(--border-color);
         border-radius: 0.5rem;
         border-bottom: 3px solid transparent;
     }

     .tab-button.active {
         border-bottom-color: var(--primary-color);
     }
 }

 .hidden {
     display: none;
 }

 .spinner {
     display: inline-block;
     width: 1rem;
     height: 1rem;
     border: 2px solid rgba(255, 255, 255, 0.3);
     border-top-color: white;
     border-radius: 50%;
     animation: spin 0.6s linear infinite;
 }

 @keyframes spin {
     to {
         transform: rotate(360deg);
     }
 }