/* ===================================
   Zona Conta Web - Styles
   Professional Accounting Website
   =================================== */

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

:root {
    --primary-color: #1e3a8a;
    --secondary-color: #3b82f6;
    --accent-color: #10b981;
    --text-dark: #1f2937;
    --text-gray: #6b7280;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

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

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

/* ===================================
   Header y Navegación
   =================================== */

.header {
    background-color: var(--bg-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
}

.tagline {
    font-size: 0.85rem;
    color: var(--text-gray);
    display: block;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-color);
}

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

.nav-menu a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: var(--secondary-color);
}

/* ===================================
   Hero Section
   =================================== */

.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 5rem 0;
    text-align: center;
}

.hero-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

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

/* ===================================
   Botones
   =================================== */

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    text-decoration: none;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.3s;
    border: 2px solid transparent;
    cursor: pointer;
}

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

.btn-primary:hover {
    background-color: #059669;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border-color: white;
}

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

/* ===================================
   Secciones
   =================================== */

section {
    padding: 4rem 0;
}

.section-title {
    font-size: 2.25rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-weight: 700;
}

.section-subtitle {
    text-align: center;
    color: var(--text-gray);
    font-size: 1.1rem;
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ===================================
   Servicios
   =================================== */

.servicios {
    background-color: var(--bg-light);
}

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

.servicio-card {
    background: white;
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

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

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

.servicio-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.servicio-card p {
    color: var(--text-gray);
    line-height: 1.7;
}

.cta-section {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
}

/* ===================================
   Sobre Nosotros
   =================================== */

.nosotros-content {
    max-width: 900px;
    margin: 0 auto;
}

.nosotros-text h3 {
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    margin-top: 2rem;
}

.nosotros-text h3:first-child {
    margin-top: 0;
}

.nosotros-text p {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

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

.valores-list li {
    padding: 1rem;
    margin-bottom: 1rem;
    background: var(--bg-light);
    border-left: 4px solid var(--accent-color);
    border-radius: 0.5rem;
}

.valores-list strong {
    color: var(--primary-color);
}

/* ===================================
   Contacto
   =================================== */

.contacto {
    background-color: var(--bg-light);
}

.contacto-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contacto-info {
    background: white;
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
    height: fit-content;
}

.contacto-info h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.info-item {
    margin-bottom: 1.5rem;
}

.info-item strong {
    display: block;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

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

.info-item a {
    color: var(--secondary-color);
    text-decoration: none;
}

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

/* ===================================
   Formulario
   =================================== */

.contacto-form {
    background: white;
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow);
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

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

.checkbox-group label {
    display: flex;
    align-items: flex-start;
    font-weight: normal;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-right: 0.5rem;
    margin-top: 0.25rem;
}

.checkbox-group a {
    color: var(--secondary-color);
}

/* ===================================
   Footer
   =================================== */

.footer {
    background-color: var(--primary-color);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-column h4 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

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

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

.footer-column a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        padding: 1rem;
        box-shadow: var(--shadow-lg);
        gap: 1rem;
    }

    .nav-menu.active {
        display: flex;
    }

    .hero-content h2 {
        font-size: 1.75rem;
    }

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

    .section-title {
        font-size: 1.75rem;
    }

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

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

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

@media (max-width: 480px) {
    .hero {
        padding: 3rem 0;
    }

    .hero-content h2 {
        font-size: 1.5rem;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
    }
}