/* ================================================
   NEINSAL - Sitio Web Profesional de Contabilidad
   Paleta: Azul Oscuro, Gris, Blanco, Acento Suave
   ================================================ */

:root {
    --color-primary: #1a3a52;        /* Azul oscuro profesional */
    --color-secondary: #2c5f7e;      /* Azul medio */
    --color-accent: #4a90b8;         /* Azul acento suave */
    --color-text: #333333;           /* Gris oscuro para texto */
    --color-text-light: #666666;     /* Gris medio */
    --color-bg: #ffffff;             /* Blanco */
    --color-bg-light: #f8f9fa;       /* Gris muy claro */
    --color-border: #e0e0e0;         /* Gris borde */
    --font-primary: 'Roboto', 'Segoe UI', sans-serif;
    --font-heading: 'Montserrat', 'Arial', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    line-height: 1.6;
    background-color: var(--color-bg);
}

/* Tipografía */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

/* Header y Navegación */
.header {
    background-color: var(--color-primary);
    color: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
}

.logo-img {
    height: 80px;
    width: auto;
    object-fit: contain;
}

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

.logo-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
    margin: 0;
}

.logo-subtitle {
    font-size: 0.8rem;
    color: rgba(255,255,255,0.8);
    font-weight: 400;
}

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

.nav-menu li a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
    border-radius: 4px;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    background-color: var(--color-accent);
    color: white;
}

/* Menú móvil */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: white;
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    padding: 5rem 2rem;
    text-align: center;
}

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

.hero h1 {
    color: white;
    font-size: 3rem;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease;
}

/* Logo en Hero */
.hero-logo-container {
    margin-bottom: 2rem;
    animation: fadeInUp 0.6s ease;
}

.hero-logo {
    height: 120px;
    width: auto;
    filter: drop-shadow(0 4px 15px rgba(0,0,0,0.3));
    animation: fadeInUp 0.6s ease;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    color: rgba(255,255,255,0.9);
    animation: fadeInUp 0.8s ease 0.2s both;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: var(--color-accent);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid var(--color-accent);
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    background-color: transparent;
    border-color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

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

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

/* Container genérico */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.section {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 1rem;
    font-size: 2.5rem;
}

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

/* Grid de servicios */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.service-card {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    border: 1px solid var(--color-border);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 25px rgba(0,0,0,0.15);
    border-color: var(--color-accent);
}

.service-icon {
    font-size: 3rem;
    color: var(--color-accent);
    margin-bottom: 1rem;
}

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

.service-card p {
    color: var(--color-text-light);
    line-height: 1.8;
}

.service-card ul {
    margin-top: 1rem;
    padding-left: 1.5rem;
    color: var(--color-text-light);
}

.service-card ul li {
    margin-bottom: 0.5rem;
}

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

.feature-item {
    text-align: center;
    padding: 2rem;
}

.feature-icon {
    font-size: 3rem;
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.feature-item h3 {
    margin-bottom: 1rem;
}

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

/* Sección de fondo gris */
.bg-light {
    background-color: var(--color-bg-light);
}

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

.testimonial-card {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
    border-left: 4px solid var(--color-accent);
}

.testimonial-text {
    font-style: italic;
    color: var(--color-text);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent), var(--color-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 1.2rem;
}

.author-info h4 {
    margin: 0;
    font-size: 1rem;
}

.author-info p {
    margin: 0;
    color: var(--color-text-light);
    font-size: 0.9rem;
}

/* Formulario de contacto */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

.contact-form {
    background-color: white;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
}

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

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

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

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

/* Información de contacto */
.contact-info {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    padding: 2rem;
    border-radius: 8px;
    height: fit-content;
}

.contact-info h3 {
    color: white;
    margin-bottom: 2rem;
}

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

.contact-item-icon {
    font-size: 1.5rem;
    color: var(--color-accent);
    min-width: 30px;
}

.contact-item-content h4 {
    color: white;
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

.contact-item-content p,
.contact-item-content a {
    color: rgba(255,255,255,0.9);
    text-decoration: none;
}

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

/* Footer */
.footer {
    background-color: var(--color-primary);
    color: white;
    padding: 3rem 2rem 1rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: white;
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.footer-section p,
.footer-section a {
    color: rgba(255,255,255,0.8);
    line-height: 1.8;
}

.footer-section a {
    text-decoration: none;
    display: block;
    transition: color 0.3s ease;
}

.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: rgba(255,255,255,0.7);
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease;
}

/* Responsive */
@media (max-width: 768px) {
    .header-container {
        padding: 1rem;
    }

    .logo-img {
        height: 55px;
    }

    .logo-title {
        font-size: 1.4rem;
    }

    .logo-subtitle {
        font-size: 0.7rem;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: var(--color-primary);
        width: 100%;
        padding: 2rem;
        gap: 1rem;
        transition: left 0.3s ease;
        box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    }

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

    .hero h1 {
        font-size: 2rem;
    }

    .hero-logo {
        height: 90px;
    }

    .hero p {
        font-size: 1.1rem;
    }

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

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

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

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

@media (max-width: 480px) {
    .container {
        padding: 2rem 1rem;
    }

    .hero {
        padding: 3rem 1rem;
    }

    h1 { font-size: 1.8rem; }
    h2 { font-size: 1.5rem; }

    .btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
}

/* Utilidades */
.text-center {
    text-align: center;
}

/* Fotos del equipo */
.team-photo {
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    transition: transform 0.3s ease;
}

.team-photo:hover {
    transform: scale(1.05);
}

.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }