/* =========================================
VARIABLES DE COLOR (Modo Oscuro DevOps)
========================================= */
:root {
--bg-main: #0f172a;

--bg-card: #1e293b;

--text-primary: #f8fafc;

--text-secondary: #94a3b8;
--accent-color: #0ea5e9;

--accent-hover: #0284c7;

--border-color: #334155;

}

/* =========================================
RESET BÁSICO
========================================= */

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

body {
font-family: 'Inter', sans-serif;
background-color: var(--bg-main);
color: var(--text-primary);
line-height: 1.6;
}

/* =========================================
Navegación (Navbar)
========================================= */
.navbar {
display: flex;
justify-content: space-between;
align-items: center;
padding: 1.5rem 5%;
background-color: rgba(15, 23, 42, 0.9);
backdrop-filter: blur(10px);
position: sticky;
top: 0;
z-index: 100;
border-bottom: 1px solid var(--border-color);
}

.logo {
font-size: 1.5rem;
font-weight: 800;
color: var(--accent-color);
letter-spacing: 2px;
}

.nav-links {
list-style: none;
display: flex;
gap: 1.5rem;
}

.btn-nav {
text-decoration: none;
color: var(--text-secondary);
font-weight: 600;
padding: 0.5rem 1rem;
border: 1px solid transparent;
border-radius: 6px;
transition: all 0.3s ease;
}

.btn-nav:hover {
color: var(--text-primary);
border-color: var(--accent-color);
background-color: rgba(14, 165, 233, 0.1);
}

main {
padding: 0 5%;
}

/* =========================================
Sección 1: Hero (Perfil)
========================================= */
.hero-section {
display: flex;
align-items: center;
justify-content: space-between;
min-height: 80vh;
gap: 2rem;
}

.hero-content {
flex: 1;
}

.greeting {
color: var(--accent-color);
font-weight: 600;
font-size: 1.2rem;
margin-bottom: 0.5rem;
}

h1 {
font-size: 3.5rem;
line-height: 1.2;
margin-bottom: 1.5rem;
}

.description {
color: var(--text-secondary);
font-size: 1.1rem;
margin-bottom: 2rem;
max-width: 600px;
}

.social-links {
display: flex;
gap: 1rem;
}

.btn-social {
text-decoration: none;
color: var(--text-primary);
border: 1px solid var(--border-color);
padding: 0.5rem 1.5rem;
border-radius: 6px;
transition: 0.3s;
}

.btn-social:hover {
background-color: var(--bg-card);
border-color: var(--text-primary);
}

.hero-image {
flex: 1;
display: flex;
justify-content: center;
}

.profile-pic {
width: 350px;
height: 350px;
border-radius: 50%;
object-fit: cover;
border: 4px solid var(--bg-card);
box-shadow: 0 0 20px rgba(14, 165, 233, 0.2);
}

/* =========================================
Secciones Generales y Tarjetas
========================================= */
.content-section, .feedback-section {
padding: 5rem 0;
border-top: 1px solid var(--border-color);
}

h2 {
font-size: 2rem;
margin-bottom: 2rem;
color: var(--text-primary);
}

.cards-container, .projects-container {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
gap: 2rem;
}

.card, .project-card {
background-color: var(--bg-card);
padding: 2rem;
border-radius: 12px;
border: 1px solid var(--border-color);
transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover, .project-card:hover {
transform: translateY(-5px);
box-shadow: 0 10px 20px rgba(0,0,0,0.2);
border-color: var(--accent-color);
}

.card h3, .project-card h3 {
color: var(--accent-color);
margin-bottom: 1rem;
}

.card p, .project-card p {
color: var(--text-secondary);
margin-bottom: 1.5rem;
}

.btn-project {
display: inline-block;
text-decoration: none;
color: var(--bg-main);
background-color: var(--accent-color);
padding: 0.5rem 1rem;
border-radius: 6px;
font-weight: 600;
transition: 0.3s;
}

.btn-project:hover {
background-color: var(--accent-hover);
}

/* =========================================
Formulario de Feedback
========================================= */
.feedback-form {
max-width: 600px;
margin-top: 2rem;
}

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

input, textarea {
width: 100%;
padding: 1rem;
background-color: var(--bg-card);
border: 1px solid var(--border-color);
color: var(--text-primary);
border-radius: 6px;
font-family: inherit;
outline: none;
transition: border-color 0.3s;
}

input:focus, textarea:focus {
border-color: var(--accent-color);
}

.btn-submit {
background-color: var(--accent-color);
color: var(--bg-main);
border: none;
padding: 1rem 2rem;
font-weight: 600;
border-radius: 6px;
cursor: pointer;
transition: background-color 0.3s;
}

.btn-submit:hover {
background-color: var(--accent-hover);
}

/* =========================================
Chatbot IA (Desplegable)
========================================= */
.hidden {
display: none !important;
}

.chatbot-toggle-btn {
position: fixed;
bottom: 20px;
right: 20px;
background-color: var(--accent-color);
color: var(--bg-main);
border: none;
padding: 1rem 1.5rem;
border-radius: 30px;
font-size: 1rem;
font-weight: 600;
cursor: pointer;
box-shadow: 0 5px 15px rgba(0,0,0,0.3);
z-index: 1000;
transition: transform 0.3s ease, background-color 0.3s;
}

.chatbot-toggle-btn:hover {
background-color: var(--accent-hover);
transform: scale(1.05);
}

.chatbot-container {
position: fixed;
bottom: 20px;
right: 20px;
width: 320px;
background-color: var(--bg-card);
border: 1px solid var(--border-color);
border-radius: 12px;
overflow: hidden;
box-shadow: 0 10px 30px rgba(0,0,0,0.5);
display: flex;
flex-direction: column;
z-index: 1000;
}

.chatbot-header {
background-color: rgba(15, 23, 42, 0.95);
padding: 1rem;
font-weight: 600;
display: flex;
align-items: center;
justify-content: space-between;
border-bottom: 1px solid var(--border-color);
}

.header-left {
display: flex;
align-items: center;
gap: 0.5rem;
}

.close-chat-btn {
background: none;
border: none;
color: var(--text-secondary);
font-size: 1.2rem;
cursor: pointer;
transition: color 0.3s;
}

.close-chat-btn:hover {
color: var(--text-primary);
}

.bot-status {
width: 10px;
height: 10px;
background-color: #22c55e;
border-radius: 50%;
}

.chatbot-messages {
height: 250px;
padding: 1rem;
overflow-y: auto;
display: flex;
flex-direction: column;
gap: 0.5rem;
}

.message {
padding: 0.75rem;
border-radius: 8px;
font-size: 0.9rem;
max-width: 85%;
}

.bot-message {
background-color: var(--bg-main);
border: 1px solid var(--border-color);
align-self: flex-start;
}

.user-message {
background-color: var(--accent-color);
color: var(--bg-main);
align-self: flex-end;
}

.chatbot-input {
display: flex;
border-top: 1px solid var(--border-color);
}

.chatbot-input input {
border: none;
border-radius: 0;
padding: 1rem;
width: 100%;
}

.chatbot-input button {
background-color: var(--accent-color);
color: var(--bg-main);
border: none;
padding: 0 1rem;
cursor: pointer;
font-weight: 600;
}

/* =========================================
DISEÑO RESPONSIVO (Móviles y Tablets)
ESTO DEBE IR SIEMPRE AL FINAL
========================================= */
@media (max-width: 768px) {
.navbar {
flex-direction: column;
gap: 1rem;
padding: 1rem;
}

.hero-section {
    flex-direction: column-reverse; 
    text-align: center; 
    padding-top: 2rem;
}

h1 {
    font-size: 2.2rem;
}

.description {
    font-size: 1rem;
    margin: 0 auto 2rem auto;
}

.profile-pic {
    width: 250px;
    height: 250px;
    margin-bottom: 1.5rem;
}

.social-links {
    justify-content: center;
}

.content-section, .feedback-section {
    padding: 3rem 0;
}

.chatbot-container {
    width: 90%;
    right: 5%;
    bottom: 80px; 
}


}