:root {
    /* Paleta Premium Corporativa */
    --color-primary: #c80000;
    --color-primary-dark: #8a0000;
    --color-primary-light: #ec7063;
    
    --color-background: #ffffff;
    --color-surface: #f8fafc;
    --color-text: #111111;
    --color-text-secondary: #555555;
    --color-border: #e2e8f0;
    
    --color-success: #25d366;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    
    --transition: all 0.3s ease;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
}

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

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-family);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-background);
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

/* =========================================
   HEADER & NAVEGACIÓN
========================================= */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background-color: var(--color-background);
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition);
}

.header.scrolled { box-shadow: var(--shadow-md); }

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
}

.logo { display: flex; align-items: center; }
.logo-img-dark { display: none; width: 300px; height: 45px; object-fit: contain; }
.logo-img { width: 300px; height: 45px; object-fit: contain; }
.nav-list { display: flex; gap: var(--spacing-md); list-style: none; }

.nav-link {
    font-weight: 500; color: var(--color-text);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 6px; transition: var(--transition);
}
.nav-link:hover { color: var(--color-primary); background-color: var(--color-surface); }

.header-actions { display: flex; align-items: center; gap: 12px; }

.theme-toggle {
    background: none; border: none; cursor: pointer; padding: var(--spacing-xs);
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    transition: var(--transition); color: var(--color-text);
}
.theme-toggle:hover { background-color: var(--color-surface); }
.sun-icon { display: none; }
.moon-icon { display: block; }

.hamburger {
    display: none; flex-direction: column; gap: 5px; background: none; 
    border: none; cursor: pointer; padding: var(--spacing-xs);
}
.hamburger span {
    width: 25px; height: 3px; background-color: var(--color-text);
    border-radius: 3px; transition: var(--transition);
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(8px, 8px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(7px, -7px); }

.translate-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px; 
    background: var(--color-surface); color: var(--color-primary);
    border: 1px solid var(--color-border); border-radius: 8px;
    padding: 0.4rem 0.8rem; cursor: pointer; font-weight: 600; font-size: 0.9rem; transition: all 0.3s ease;
}
.translate-btn:hover { background: var(--color-primary); color: #fff; transform: scale(1.05); }

.btn-login {
    background-color: var(--color-primary); color: #fff; font-weight: 600; 
    padding: 8px 18px; border-radius: 8px; text-decoration: none; transition: var(--transition);
}
.btn-login:hover { background-color: var(--color-primary-dark); }
.btn-login-desktop { display: inline-block; }
.nav-login-mobile { display: none; }

/* =========================================
   SECCIÓN TRABAJE CON NOSOTROS
========================================= */
.trabaje-section { padding: 8rem 0 6rem; }
.trabaje-title { font-size: 2.4rem; margin-bottom: 1rem; color: var(--color-primary); font-weight: 800; letter-spacing: -0.5px; }
.trabaje-description { max-width: 760px; line-height: 1.6; color: var(--color-text-secondary); }

/* LAYOUT 3 COLUMNAS */
.work-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr 1fr; 
    gap: 2rem;
    margin-top: 3rem;
    align-items: stretch;
}

.vacancies-panel, .details-panel, .whatsapp-panel {
    display: flex;
    flex-direction: column;
    height: 100%; 
}

/* Columna 1: Vacantes */
.vacancies-panel { gap: 1.2rem; }
.vacancies-panel h3 { font-size: 1.3rem; color: var(--color-primary); }

.vacancy-list { list-style: none; display: flex; flex-direction: column; gap: 1rem; flex-grow: 1; }
.vacancy-list li {
    padding: 1.2rem 1.4rem; border-radius: 12px; border: 1px solid var(--color-border);
    background: var(--color-background); cursor: pointer;
    transition: all 0.3s ease; box-shadow: var(--shadow-sm);
}
.vacancy-list li h4 { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.3rem; }
.vacancy-list li p { font-size: 0.9rem; color: var(--color-text-secondary); }
.vacancy-list li:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--color-primary); }
.vacancy-list li.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.vacancy-list li.active p { color: rgba(255, 255, 255, 0.8); }

.vacancy-pagination {
    display: flex; justify-content: center; align-items: center;
    gap: 0.6rem; margin-top: auto; padding-top: 1rem;
}
.vacancy-pagination button {
    padding: 0.4rem 0.8rem; border-radius: 6px; border: 1px solid var(--color-border);
    background: var(--color-surface); font-weight: 600; cursor: pointer; transition: var(--transition);
}
.vacancy-pagination button:disabled { opacity: 0.4; cursor: not-allowed; }
.vacancy-pagination button:hover:not(:disabled) { background: var(--color-primary); color: #fff; }

/* Columna 2: Detalles */
.details-panel {
    padding: 2.5rem; border-radius: 16px; border: 1px solid var(--color-border);
    background: var(--color-surface); box-shadow: var(--shadow-md); gap: 1.5rem;
}
.details-panel h3 { font-size: 1.4rem; color: var(--color-primary); }
.requirements-list { padding-left: 1.2rem; display: flex; flex-direction: column; gap: 0.8rem; }
.requirements-list li { font-size: 0.95rem; color: var(--color-text-secondary); }

/* Columna 3: WhatsApp Panel */
.whatsapp-panel { background: transparent; }
.whatsapp-mockup-wrapper { display: flex; flex-grow: 1; height: 100%; }
.whatsapp-phone {
    width: 100%; background-color: #efeae2; border-radius: 16px; overflow: hidden; 
    box-shadow: var(--shadow-md); border: 1px solid var(--color-border); display: flex; flex-direction: column;
}
.wa-header { background-color: #008069; padding: 12px 15px; display: flex; align-items: center; color: #fff; gap: 12px; }
.wa-avatar img { width: 40px; height: 40px; border-radius: 50%; object-fit: cover; background: #fff; padding: 2px; }
.wa-info { flex-grow: 1; }
.wa-info h4 { margin: 0; font-size: 0.95rem; font-weight: 600; }
.wa-info p { margin: 0; font-size: 0.75rem; opacity: 0.9; }
.wa-brand { font-size: 1.2rem; }

.wa-chat-body { padding: 20px 15px; display: flex; flex-direction: column; gap: 15px; flex-grow: 1; }
.wa-date {
    align-self: center; background: rgba(225, 243, 251, 0.9); color: #54656f;
    font-size: 0.75rem; padding: 4px 10px; border-radius: 8px; box-shadow: 0 1px 1px rgba(0,0,0,0.05);
}
.wa-message {
    background: #fff; color: #111b21; font-size: 0.95rem; padding: 10px 14px;
    border-radius: 0 8px 8px 8px; max-width: 90%; box-shadow: 0 1px 1px rgba(0,0,0,0.1); line-height: 1.5;
}

.wa-input-area { 
    background: #f0f2f5; padding: 12px 15px; display: flex; align-items: center; gap: 10px; 
    cursor: pointer; transition: background 0.3s ease;
}
.wa-input-area:hover { background: #e0e4e8; }
.wa-input-area:hover .wa-send-btn { transform: scale(1.1); background: #019071; }
.wa-input-area input {
    flex-grow: 1; background: #fff; border: none; padding: 12px 15px;
    border-radius: 20px; font-size: 0.9rem; color: #54656f; pointer-events: none;
}
.wa-send-btn {
    background: #00a884; color: #fff; border: none; width: 42px; height: 42px; border-radius: 50%; 
    display: flex; align-items: center; justify-content: center; cursor: pointer; transition: transform 0.2s ease, background 0.2s ease;
}
.wa-send-btn svg { width: 20px; height: 20px; }

/* =========================================
   FOOTER Y ELEMENTOS FLOTANTES
========================================= */
.footer {
    background-color: var(--color-surface); border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) 0 var(--spacing-md); position: relative;
}
.footer::before { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: var(--color-primary); }
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--spacing-lg); margin-bottom: var(--spacing-lg); }
.footer-title { margin-bottom: var(--spacing-sm); }
.footer-text { color: var(--color-text-secondary); margin-bottom: var(--spacing-sm); }
.footer-social { display: flex; gap: 0.75rem; }
.footer-social a {
    display: flex; align-items: center; justify-content: center; width: 38px; height: 38px; 
    border: 1px solid var(--color-border); border-radius: 8px; color: var(--color-text-secondary); transition: all 0.3s ease;
}
.footer-social a:hover { background-color: var(--color-primary); color: #fff; border-color: var(--color-primary); transform: translateY(-3px); }
.footer-heading { font-size: 1.1rem; font-weight: 700; color: var(--color-text); margin-bottom: var(--spacing-sm); }
.footer-links, .footer-contact { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; }
.footer-links a { color: var(--color-text-secondary); transition: all 0.3s ease; }
.footer-links a:hover { color: var(--color-primary); padding-left: 5px; }
.footer-contact li { color: var(--color-text-secondary); display: flex; align-items: center; gap: 10px; }
.footer-contact i { color: var(--color-primary); }
.footer-bottom { text-align: center; padding-top: var(--spacing-md); border-top: 1px solid var(--color-border); color: var(--color-text-secondary); font-size: 0.9rem; }

.back-to-top {
    position: fixed; bottom: 25px; right: 25px; width: 50px; height: 50px;
    border-radius: 8px; background-color: var(--color-primary); color: #fff; border: none; 
    display: flex; align-items: center; justify-content: center; box-shadow: var(--shadow-md); 
    cursor: pointer; opacity: 0; pointer-events: none; transform: translateY(20px); transition: all 0.3s ease; z-index: 999;
}
.back-to-top.show { opacity: 1; pointer-events: auto; transform: translateY(0); }
.back-to-top:hover { background-color: var(--color-primary-dark); }

.wa-button {
    position: fixed; bottom: 90px; right: 25px; width: 50px; height: 50px;
    border-radius: 50%; background-color: #25d366; color: white; border: none;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4); cursor: pointer; z-index: 1000; transition: all 0.3s ease;
}
.wa-button i { font-size: 1.8rem; }
.wa-button:hover { background-color: #1ca14f; transform: scale(1.1); }

/* Modal Contacto WA global */
.wa-modal {
    position: fixed; bottom: 155px; right: 25px; width: 320px; background: var(--color-background); 
    border-radius: 12px; box-shadow: var(--shadow-lg); z-index: 1001; opacity: 0; visibility: hidden; 
    transform: translateY(20px); transition: all 0.3s ease; border: 1px solid var(--color-border);
}
.wa-modal.show { opacity: 1; visibility: visible; transform: translateY(0); }
.wa-modal-header { background-color: #25d366; color: #fff; padding: 15px; border-radius: 11px 11px 0 0; text-align: center; font-weight: 600; }
.wa-modal-header p { font-size: 0.85rem; font-weight: 400; margin-top: 5px; opacity: 0.9; }
.wa-list { padding: 15px; display: flex; flex-direction: column; gap: 10px; }
.wa-item { display: flex; align-items: center; gap: 12px; padding: 12px; border: 1px solid var(--color-border); border-radius: 8px; cursor: pointer; transition: all 0.2s ease; }
.wa-item:hover { background: var(--color-surface); border-color: #25d366; }
.wa-icon-left { color: #25d366; font-size: 1.8rem; }
.wa-info h4 { color: #fff !important; font-size: 0.95rem; margin-bottom: 2px;}
.wa-info p { color: #fff !important; font-size: 0.8rem; }

body.dark-mode {
    --color-background: #0f1115;
    --color-surface: #1a1d24;
    --color-text: #e2e8f0;
    --color-text-secondary: #a0aec0;
    --color-border: #2d3748;
}
body.dark-mode .vacancy-list li { background: var(--color-surface); border-color: var(--color-border); }
body.dark-mode .vacancy-list li:hover { border-color: var(--color-primary); }
body.dark-mode .vacancy-pagination button { background: #2d3748; color: #e2e8f0; border-color: #4a5568; }
body.dark-mode .details-panel { background: var(--color-surface); box-shadow: 0 4px 15px rgba(0,0,0,0.5); }
body.dark-mode .whatsapp-phone { background-color: #0b141a; border-color: #202c33; }
body.dark-mode .wa-header { background-color: #202c33; }
body.dark-mode .wa-date { background-color: #182229; color: #8696a0; }
body.dark-mode .wa-message { background-color: #202c33; color: #e9edef; }
body.dark-mode .wa-input-area { background-color: #202c33; }
body.dark-mode .wa-input-area:hover { background-color: #2a3942; }
body.dark-mode .wa-input-area input { background-color: #2a3942; color: #d1d7db; }
body.dark-mode .wa-send-btn { background: #00a884; }

/* =========================================
   MEDIA QUERIES (CONSOLIDADAS)
========================================= */
@media (max-width: 1024px) {
    .work-layout { grid-template-columns: 1fr 1fr; }
    .whatsapp-panel { grid-column: 1 / -1; max-width: 450px; margin: 0 auto; width: 100%; }
}

@media (max-width: 968px) {
    .nav {
        position: fixed; top: 70px; left: 0; right: 0; background-color: var(--color-background); 
        border-bottom: 1px solid var(--color-border); padding: var(--spacing-md); transform: translateY(-100%); 
        opacity: 0; visibility: hidden; transition: var(--transition); box-shadow: var(--shadow-lg);
    }
    .nav.active { transform: translateY(0); opacity: 1; visibility: visible; }
    .nav-list { flex-direction: column; gap: var(--spacing-sm); }
    .hamburger { display: flex; }
    .btn-login-desktop { display: none; }
    .nav-login-mobile { display: block; margin-top: 15px; }
    .nav-login-mobile .btn-login { display: block; text-align: center; width: 100%; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    :root { --spacing-lg: 3rem; --spacing-xl: 4rem; }
    .logo-img, .logo-img-dark { width: 220px; height: auto; }
    .trabaje-title { font-size: 2rem; }
    .trabaje-section { padding: 6rem 0 4rem; }
    .trabaje-description { padding: 0; text-align: left; }
    
    .work-layout { grid-template-columns: 1fr; }
    .whatsapp-panel { grid-column: 1; max-width: 100%; }

    .wa-button { bottom: 100px; width: 45px; height: 45px; }
    .wa-button i { font-size: 1.5rem; }
    .back-to-top { bottom: 25px; right: 15px; width: 45px; height: 45px; }
    .wa-modal { right: 15px; bottom: 160px; width: 300px; }
}

@media (max-width: 480px) {
    .container { padding: 0 1.2rem; }
    .logo-img, .logo-img-dark { width: 180px; }
    .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
    .wa-button { bottom: 90px; right: 15px; }
}