/* ================================================= */
/* 1. PALETA Y BASE (Centralización de Colores)      */
/* ¡NUEVA PALETA APLICADA! (Neutral y SÓLIDA)        */
/* ================================================= */
/* ================================================= */
/* 1. PALETA Y BASE (Centralización de Colores)      */
/* ¡NUEVA PALETA APLICADA! (Neutral y SÓLIDA - Fondo CLARO) */
/* ================================================= */

:root{
    /* --- Colores Base --- */
    --color-bg-dark: #111030;       /* Azul-Gris Oscuro (Base del sistema) */
    --color-intermed: #364F59;      /* Azul Grisáceo Intermedio (Para transparencia y bordes) */
    --color-accent: #4BF2F2;        /* Cian Brillante (Acentos principales, títulos, hover) */
    --color-subtitle: rgb(60, 166, 166);      /* Cian Opaco/Verdoso (Secundario, subtítulos) */
    --color-text: #ffffff;          /* Blanco-cian desaturado (Texto principal) */

    /* --- Fondos Transparentes (Ajusta la opacidad si cambias el color base) --- */
    --color-glass-bg: rgba(54, 88, 117, 0.123); /* Transparencia de BG Dark (Header/Footer) */
    --color-card-inner-fill: rgba(80, 106, 121, 0.164); /* Transparencia de Intermed (Relleno de tarjeta) */
    
    /* --- Acento Transparente (NUEVAS VARIABLES para enlaces/brillos) --- */
    /* Usadas para backgrounds muy sutiles, bordes y el efecto de "barrido" */
    --color-accent-transparent-low: rgba(75, 242, 242, 0.1);    /* 10% de opacidad para fondos */
    --color-accent-transparent-medium: rgba(75, 242, 242, 0.5); /* 40% de opacidad para el barrido y bordes */
    --color-accent-transparent-high: rgba(75, 242, 242, 1.0);  /* 5% de opacidad para background de hover */

    --color-glass-bg: var(--color-light-blue);        /* Fondo sólido para bloques (Light Blue) */
    --color-card-inner-fill: rgba(60, 166, 166, 0.1);  

    /* --- Valores Fijos --- */
    --border-radius-card: 6px;
    --font-code: 'Fira Code', monospace;
    --font-text: 'Inter', sans-serif;
} 

/* Animación para el borde giratorio (VUELVE A OPACITY 1 EN HOVER) */
@keyframes borderSpin {
    to { transform: rotate(360deg); }
}
/* Animación para el cursor del título */
@keyframes blink-caret {
    from, to { opacity: 0 }
    50% { opacity: 1 }
}

/* Animación de transición de colores del fondo (Hardcoded para el efecto cyberpunk) */
@keyframes colorShift {
    0% {
        background: rgba(0, 255, 191, 0.543); /* Cian de inicio */
    }
    100% {
        background: rgba(7, 102, 196, 0.506); /* Verde-agua de fin */
    }
} 


/* ================================================= */
/* 2. FONDO DINÁMICO                                 */
/* ================================================= */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('/assets/img/fondo.png');
    background-size: cover;
    background-position: center;
    z-index: -2;
    filter: blur(5px);
    transform: scale(1.1);
}

/* Capa animada de color */
body::after {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;

    /* USA VARIABLE ADAPTADA */
    background: var(--color-accent-transparent-low); 

    /* mix-blend-mode: overlay; */

    /* animation: colorShift 10s ease-in-out infinite alternate; */
}

body {
    background-color: var(--color-bg-dark);
    color: var(--color-text);
}

h1, h2, h3 {
    font-family: var(--font-code);
    font-weight: 700;
}

/* ================================================= */
/* 3. HEADER (Bloque de Cristal con Transparencia)   */
/* ================================================= */
.info-block {
    background-color: var(--color-glass-bg); /* Transparencia base */
    backdrop-filter: blur(10px); /* Efecto cristal aumentado */
    border-bottom: 3px solid var(--color-accent); /* Acento */
    padding: 2.5rem 1rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.8); 
    position: relative;
}

.main-title {
    color: var(--color-titulo);
    position: relative;
    display: inline-block;
    padding-right: 20px;
}

.main-title::after {
    content: '_';
    color: var(--color-titulo); /* Acento */
    animation: blink-caret 1s step-end infinite;
    position: absolute;
    right: 0;
    top: 0;
}

.header-subtitle {
    margin-top: 0.5rem;
    color: var(--color-subtitle);
    font-weight: 500;
}

/* ================================================= */
/* 4. TÍTULO DE SECCIÓN                              */
/* ================================================= */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    border-bottom: 2px solid var(--color-intermed); /* Intermedio */
    padding-bottom: 0.75rem;
    color: var(--color-accent); /* Acento */
}

/* ================================================= */
/* 5. TARJETAS DE PROYECTO                           */
/* ================================================= */
.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.project-card {
    background-color: var(--color-card-inner-fill); /* Transparencia */
    backdrop-filter: blur(6px); /* Efecto cristal */
    padding: 2rem;
    border-radius: var(--border-radius-card);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden; 
}

/* Elemento que rellena el centro */
.project-card::after {
    content: '';
    position: absolute;
    inset: 1px; 
    background-color: var(--color-card-inner-fill); /* Relleno con transparencia */
    border-radius: var(--border-radius-card);
    z-index: 0;
}

/* El contenido del card debe estar sobre los efectos de borde */
.project-card > * {
    position: relative;
    z-index: 1;
}

/* Estado Hover: Elevación y Borde Giratorio */
.project-card:hover {
    transform: translateY(-7px); 
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.9); 
    z-index: 10;
}

.project-card:hover::before {
    opacity: 1; 
    animation: borderSpin 2s linear infinite; 
}

.card-subtitle {
    font-family: var(--font-code);
    font-size: 0.9rem;
    color: var(--color-subtitle); /* Subtítulo */
    margin-bottom: 1rem;
    font-weight: 400;
}


.highlight {
    font-family: var(--font-code);
    font-weight: 700;
    color: var(--color-accent); /* Acento */
}

/* ================================================= */
/* 6. ENLACES Y TEXTO GENERAL                        */
/* ================================================= */
p a {
    color: var(--color-accent); /* Acento */
    text-decoration: underline;
    font-weight: 500;
}
p a:hover {
    color: var(--color-subtitle); /* Subtítulo */
}

.main-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* ================================================= */
/* 7. ENLACES DE TARJETA (EFECTO NEÓN Y SWIPE)       */
/* ================================================= */

.card-link {
    /* Estado Base: Texto neón */
    font-family: var(--font-code);
    color: var(--color-accent); /* Acento (¡OK!) */
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    margin-top: 1rem;
    transition: color 0.2s;
    
    padding: 0.5rem 0.75rem; 
    position: relative; 
    overflow: hidden; 
    transition: color 0.3s ease; 
    border-radius: 4px; 
    z-index: 1;
}

/* 7.1 El Barrido de Luz (Pseudo-elemento ::before) */
.card-link::before {
    content: '';
    position: absolute;
    top: -150%; 
    left: -20%; 
    width: 150%;
    height: 100%;
    
    /* USA VARIABLE ADAPTADA: media transparencia para el barrido */
    background: linear-gradient(
        0deg, 
        transparent, 
        transparent 30%, 
        var(--color-accent-transparent-medium)
    );
    
    transform: rotate(30deg);
    transition: all 0.5s ease-out;
    opacity: 0; 
    z-index: 0; 
}


/* 7.2 Efecto Hover (Activación del barrido y brillo sutil) */
.card-link:hover {
    color: var(--color-text); 
    transform: translateY(-1px); 
    
    /* USA VARIABLES ADAPTADAS: borde y fondo muy sutiles */
    border: 1px solid var(--color-accent-transparent-medium); 
    background-color: var(--color-accent-transparent-high);
}

.card-link:hover::before {
    opacity: 1; 
    transform: rotate(30deg) translateY(400%); 
}


/* ================================================= */
/* 8. RESPONSIVENESS                                 */
/* ================================================= */
@media (min-width: 768px) {
    .projects-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
    .projects-grid { grid-template-columns: repeat(3, 1fr); }
}