/* Estilos globales para las páginas de Refrigeración Industrial - Systemfrost ISSA */

:root {
    --primary-color: #0056b3;
    --secondary-color: #e7f5ff;
    --accent-color: #00a8e8;
    --text-color: #333;
    --light-gray: #f5f5f5;
    --medium-gray: #e0e0e0;
    --white: #ffffff;
    --company-blue: #005792;
    --company-light-blue: #88d9ff;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --border-radius: 8px;
    --box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    --transition-speed: 0.3s;
}

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

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Encabezado */
header {
    background-color: var(--white);
    color: var(--text-color);
    padding: 1.5rem 0;
    border-bottom: 3px solid var(--primary-color);
}

/* QR Code Styles */
.valora-nav {
    display: inline-flex !important;
    align-items: center !important;
    gap: 8px;
    white-space: nowrap;
}

.nav-item.valora-nav img.nav-qr,
img.nav-qr {
    width: 30px !important;
    height: 30px !important;
    max-width: 30px !important;
    max-height: 30px !important;
    min-width: 30px !important;
    min-height: 30px !important;
    vertical-align: middle;
    display: inline-block;
    margin-left: 5px;
}

.valora-footer {
    display: flex;
    align-items: center;
    gap: 10px;
}

.valora-footer img.footer-qr,
img.footer-qr {
    width: 60px !important;
    height: 60px !important;
    max-width: 60px !important;
    max-height: 60px !important;
    min-width: 60px !important;
    min-height: 60px !important;
    vertical-align: middle;
    display: inline-block;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    text-align: center;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-section img {
    max-height: 120px;
    width: auto;
    height: 120px;
}

.text-section {
    flex: 0 1 auto;
    min-width: 300px;
}

.text-section h1 {
    color: var(--primary-color);
    font-size: 1.8rem;
    margin: 0;
    font-weight: 700;
}

.text-section h2 {
    color: var(--text-color);
    font-size: 1.2rem;
    margin: 5px 0;
    font-weight: 500;
}

.text-section p {
    margin: 5px 0;
    color: #666;
    font-size: 0.95rem;
}

.text-section em {
    font-style: normal;
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 500;
}

/* Navegación */
nav {
    background-color: var(--secondary-color);
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

nav ul {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    list-style: none;
    text-align: center;
}

nav li {
    margin: 0.3rem 1rem;
}

nav a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 0;
    transition: all var(--transition-speed) ease;
    position: relative;
}

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

nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--accent-color);
    transition: width var(--transition-speed) ease;
}

nav a:hover::after {
    width: 100%;
}

/* Contenido principal */
main {
    padding: 2rem 0;
}

section {
    margin-bottom: 3rem;
}

/* Tipografía */
h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

h2 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin: 1.5rem 0 1rem 0;
    border-bottom: 2px solid var(--medium-gray);
    padding-bottom: 0.5rem;
}

h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin: 1.2rem 0 0.8rem 0;
}

h4 {
    font-size: 1.1rem;
    color: var(--text-color);
    margin: 1rem 0 0.6rem 0;
}

p {
    margin-bottom: 1rem;
}

ul, ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

li {
    margin-bottom: 0.5rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-speed) ease;
}

a:hover {
    color: var(--accent-color);
    text-decoration: underline;
}

/* Componentes reutilizables */
.card {
    background-color: var(--light-gray);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--box-shadow);
}

.highlight {
    background-color: var(--secondary-color);
    padding: 1rem;
    border-left: 4px solid var(--accent-color);
    margin: 1.5rem 0;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.tech-spec {
    background-color: #f0f8ff;
    border-left: 4px solid var(--company-blue);
    padding: 15px;
    margin: 20px 0;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.tech-spec h4 {
    color: var(--company-blue);
    margin-top: 0;
    margin-bottom: 10px;
}

.seo-footer {
    background-color: var(--secondary-color);
    padding: 2rem 0;
    margin-top: 3rem;
    border-radius: var(--border-radius);
}

/* Grids y layouts */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 1.5rem 0;
}

.grid-item {
    background-color: var(--white);
    border: 1px solid var(--medium-gray);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--box-shadow);
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.grid-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.grid-item h3 {
    color: var(--accent-color);
    margin-top: 0;
}

.grid-item .icon {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Tablas */
.table-container {
    overflow-x: auto;
    margin: 1.5rem 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

th, td {
    border: 1px solid var(--medium-gray);
    padding: 0.75rem;
    text-align: left;
}

th {
    background-color: var(--secondary-color);
    font-weight: bold;
}

tr:nth-child(even) {
    background-color: var(--light-gray);
}

/* Componentes especiales */
.tech-diagram {
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    padding: 20px;
    margin: 25px 0;
    text-align: center;
}

.tech-diagram img {
    max-width: 100%;
    height: auto;
}

.tech-diagram .caption {
    margin-top: 15px;
    font-style: italic;
    color: #666;
}

.related-links {
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    margin: 2rem 0;
    box-shadow: var(--box-shadow);
}

.related-links h3 {
    margin-top: 0;
}

.related-links ul {
    list-style: none;
    margin-left: 0;
}

.related-links li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #e9ecef;
}

.related-links a {
    display: flex;
    align-items: center;
}

.related-links a:before {
    content: "→";
    margin-right: 0.5rem;
    color: var(--accent-color);
}

/* Pie de página */
footer {
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 2rem;
}

footer p {
    margin-bottom: 0.5rem;
}

footer a {
    color: var(--white);
    text-decoration: underline;
}

footer a:hover {
    color: var(--company-light-blue);
}

/* Adaptabilidad a dispositivos móviles */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .grid {
        grid-template-columns: 1fr;
    }
    
    nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    nav li {
        margin: 0.5rem 0;
    }
}

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

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.my-2 { margin-top: 2rem; margin-bottom: 2rem; }
.p-2 { padding: 2rem; }

.text-primary { color: var(--primary-color); }
.text-accent { color: var(--accent-color); }
.text-success { color: var(--success-color); }
.text-warning { color: var(--warning-color); }
.text-danger { color: var(--danger-color); }

.bg-light { background-color: var(--light-gray); }
.bg-white { background-color: var(--white); }
.bg-primary { background-color: var(--primary-color); color: var(--white); }
.bg-secondary { background-color: var(--secondary-color); }

/* Componentes específicos para las páginas de refrigeración */
.temperature-range {
    display: flex;
    align-items: center;
    margin: 2rem 0;
    padding: 1rem;
    background-color: #f0f8ff;
    border-radius: var(--border-radius);
}

.temperature-scale {
    flex-grow: 1;
    height: 40px;
    background: linear-gradient(to right, var(--company-blue), var(--accent-color), var(--company-light-blue), #c1e8ff, #ebf7ff);
    border-radius: 5px;
    position: relative;
    margin: 0 1rem;
}

.temperature-label {
    position: absolute;
    bottom: -25px;
    transform: translateX(-50%);
    font-size: 0.8rem;
    font-weight: bold;
}

.temperature-system {
    position: absolute;
    top: -25px;
    transform: translateX(-50%);
    font-size: 0.8rem;
    color: var(--primary-color);
}

/* Clases específicas para las diferentes páginas */
.system-card, .industry-card, .cycle-card {
    background-color: var(--white);
    border: 1px solid var(--medium-gray);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--box-shadow);
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.system-card:hover, .industry-card:hover, .cycle-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* Botones */
.btn {
    display: inline-block;
    font-weight: 500;
    text-align: center;
    vertical-align: middle;
    user-select: none;
    border: 1px solid transparent;
    padding: 0.5rem 1rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: var(--border-radius);
    transition: color var(--transition-speed) ease, background-color var(--transition-speed) ease;
    cursor: pointer;
}

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

.btn-primary:hover {
    background-color: #004080;
    text-decoration: none;
    color: var(--white);
}

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

.btn-outline:hover {
    background-color: var(--primary-color);
    color: var(--white);
    text-decoration: none;
}