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

:root {
    --verde-principal: #6BFF46;
    --negro: #000000;
    --gris-claro: #F2F2F2;
    --gris-medio: #666666;
    --gris-oscuro: #333333;
    --blanco: #FFFFFF;
    --sombra-suave: 0 2px 10px rgba(0, 0, 0, 0.1);
    --sombra-media: 0 4px 20px rgba(0, 0, 0, 0.15);
    --transicion-suave: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 8px;
    --border-radius-large: 12px;
}

/* Base */
html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--negro);
    background-color: var(--gris-claro);
    overflow-x: hidden;
}

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

/* Header */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: #BDBDBD;
    
    box-shadow: var(--sombra-suave);
    z-index: 1000;
    transition: var(--transicion-suave);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-logo .logo {
    height: 150px;
    width: auto;
    transition: var(--transicion-suave);
}

.nav-logo .logo:hover {
    transform: scale(1.05);
}

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

.nav-link {
    text-decoration: none;
    color: var(--negro);
    font-weight: 500;
    font-size: 16px;
    position: relative;
    transition: var(--transicion-suave);
}

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

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

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--negro);
    transition: var(--transicion-suave);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--gris-claro) 0%, #E8E8E8 100%);
    padding: 120px 0 80px;
}

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

.hero-content {
    max-width: 800px;
    animation: fadeInUp 1s ease-out;
    text-align: center;
    flex-wrap: wrap;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--negro);
    text-align: center;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: var(--gris-medio);
    margin-bottom: 2.5rem;
    font-weight: 400;
    text-align: center;
}

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

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transicion-suave);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--verde-principal);
    color: var(--negro);
    border-color: var(--verde-principal);
}

.btn-primary:hover {
    background: transparent;
    color: var(--negro);
    border-color: var(--verde-principal);
    transform: translateY(-2px);
    box-shadow: var(--sombra-media);
}

.btn-outline {
    background: transparent;
    color: var(--negro);
    border-color: var(--negro);
}

.btn-outline:hover {
    background: var(--negro);
    color: var(--blanco);
    transform: translateY(-2px);
    box-shadow: var(--sombra-media);
}

.btn-small {
    padding: 10px 20px;
    font-size: 14px;
}

.btn-large {
    padding: 18px 36px;
    font-size: 18px;
}

/* Sección Servicios */
.services {
    padding: 100px 0;
    background: var(--blanco);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--negro);
}

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

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background: var(--blanco);
    padding: 2.5rem;
    border-radius: var(--border-radius-large);
    box-shadow: var(--sombra-suave);
    transition: var(--transicion-suave);
    border: 1px solid rgba(0, 0, 0, 0.05);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--sombra-media);
    border-color: var(--verde-principal);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--verde-principal), #5AE638);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--negro);
}

.service-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--negro);
}

.service-description {
    color: var(--gris-medio);
    margin-bottom: 2rem;
    line-height: 1.7;
}

/* Formulario de Cotización */
.quote-section {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--gris-claro) 0%, #E8E8E8 100%);
}

.quote-form {
    background: var(--blanco);
    padding: 3rem;
    border-radius: var(--border-radius-large);
    box-shadow: var(--sombra-media);
    max-width: 900px;
    margin: 0 auto;
}

.form-section {
    margin-bottom: 3rem;
    padding: 2rem;
    background: rgba(107, 255, 70, 0.03);
    border-radius: var(--border-radius-large);
    border: 1px solid rgba(107, 255, 70, 0.1);
}

.form-section:last-child {
    margin-bottom: 0;
}

.form-section-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--negro);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.form-section-description {
    color: var(--gris-medio);
    margin-bottom: 2rem;
    font-size: 1.1rem;
    font-style: italic;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #E0E0E0;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-family: inherit;
    transition: var(--transicion-suave);
    background: var(--blanco);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--verde-principal);
    box-shadow: 0 0 0 3px rgba(107, 255, 70, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* Checkboxes personalizados */
.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 500;
    position: relative;
    padding-left: 30px;
    margin-bottom: 1rem;
}

.checkbox-label input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    cursor: pointer;
}

.checkmark {
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    height: 20px;
    width: 20px;
    background-color: var(--blanco);
    border: 2px solid #E0E0E0;
    border-radius: 4px;
    transition: var(--transicion-suave);
}

.checkbox-label:hover input ~ .checkmark {
    border-color: var(--verde-principal);
}

.checkbox-label input:checked ~ .checkmark {
    background-color: var(--verde-principal);
    border-color: var(--verde-principal);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid var(--negro);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.checkbox-label input:checked ~ .checkmark:after {
    display: block;
}

/* Chips para funcionalidades */
.chips-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.chip-label {
    cursor: pointer;
}

.chip-label input[type="checkbox"] {
    display: none;
}

.chip {
    display: inline-block;
    padding: 8px 16px;
    background: var(--gris-claro);
    border: 2px solid transparent;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transicion-suave);
    cursor: pointer;
}

.chip-label input[type="checkbox"]:checked + .chip {
    background: var(--verde-principal);
    color: var(--negro);
    border-color: var(--verde-principal);
    transform: scale(1.05);
}

.chip:hover {
    border-color: var(--verde-principal);
    transform: scale(1.02);
}

/* Form Actions */
.form-actions {
    text-align: center;
    margin-top: 2rem;
}

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    display: none;
}

.form-message.success {
    background: rgba(107, 255, 70, 0.1);
    color: var(--negro);
    border: 1px solid var(--verde-principal);
    display: block;
}

.form-message.error {
    background: rgba(255, 0, 0, 0.1);
    color: #D32F2F;
    border: 1px solid #D32F2F;
    display: block;
}

.form-message.loading {
    background: rgba(0, 0, 0, 0.05);
    color: var(--gris-medio);
    border: 1px solid #E0E0E0;
    display: block;
}

/* Footer */
.footer {
    background: var(--negro);
    color: var(--blanco);
    padding: 60px 0 20px;
}

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

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

.footer-logo {
    height: 80px;
    margin-bottom: 1rem;
    filter: brightness(0) invert(1);
}

.footer-brand p {
    color: var(--gris-medio);
    font-size: 1.1rem;
}

.footer-info h4 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--verde-principal);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #333;
    color: var(--gris-medio);
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.form-help {
    display: block;
    margin-top: 0.5rem;
    font-size: 14px;
    color: var(--gris-medio);
    font-style: italic;
    line-height: 1.4;
}

/* WhatsApp Button */
.whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
    transition: var(--transicion-suave);
    z-index: 1000;
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(37, 211, 102, 0.4);
}

.whatsapp-btn svg {
    width: 30px;
    height: 30px;
    fill: white;
}

.whatsapp-tooltip {
    position: absolute;
    right: 70px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--negro);
    color: var(--blanco);
    padding: 8px 12px;
    border-radius: var(--border-radius);
    font-size: 14px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transicion-suave);
}

.whatsapp-btn:hover .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.98);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--sombra-media);
        padding: 2rem 0;
    }

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

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .hero {
        min-height: 90vh;
        padding: 100px 0 60px;
    }

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

    .btn {
        width: 100%;
        max-width: 300px;
    }

    .services {
        padding: 60px 0;
    }

    .quote-section {
        padding: 60px 0;
    }

    .quote-form {
        padding: 2rem;
    }

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

    .chips-container {
        justify-content: center;
    }

    .footer {
        padding: 40px 0 20px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .whatsapp-btn {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
    }

    .whatsapp-btn svg {
        width: 25px;
        height: 25px;
    }

    .whatsapp-tooltip {
        display: none;
    }
}

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

    .nav-container {
        padding: 0 15px;
        height: 70px;
    }

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

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

    .quote-form {
        padding: 1.5rem;
    }

    .service-card {
        padding: 2rem 1.5rem;
    }
}

/* Estados de enfoque accesibles */
.btn:focus,
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid var(--verde-principal);
    outline-offset: 2px;
}

/* Scrollbar personalizado */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gris-claro);
}

::-webkit-scrollbar-thumb {
    background: var(--verde-principal);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #5AE638;
}