/* common.css - Estilos compartidos entre todas las páginas del sitio */

/* Variables de colores en escala de grises */
:root {
    --color-black: #000000;
    --color-dark-gray: #222222;
    --color-gray: #444444;
    --color-mid-gray: #777777;
    --color-light-gray: #aaaaaa;
    --color-very-light-gray: #dddddd;
    --color-almost-white: #f5f5f5;
    --color-white: #ffffff;
    
    /* Asignación semántica de colores */
    --color-primary: var(--color-black);
    --color-secondary: var(--color-dark-gray);
    --color-accent: var(--color-mid-gray);
    --color-background: var(--color-white);
    --color-foreground: var(--color-dark-gray);
    --color-highlight: var(--color-very-light-gray);
    --color-muted: var(--color-light-gray);
    --color-border: var(--color-gray);
    
    /* Efectos */
    --shadow-color: rgba(0, 0, 0, 0.2);
    --gradient-primary: linear-gradient(135deg, var(--color-black), var(--color-dark-gray));
    --gradient-secondary: linear-gradient(135deg, var(--color-gray), var(--color-dark-gray));
    
    /* Tipografía */
    --font-primary: 'Orbitron', sans-serif;
    --font-secondary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-mono: 'Courier New', Courier, monospace;
}

/* Reseteo y estilos básicos */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-secondary);
    color: var(--color-foreground);
    background-color: var(--color-background);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Fondo de estrellas (versión monocromática) */
.stars, .twinkling {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.stars {
    background: var(--color-black) url('./images/stars-mono.svg') repeat top center;
    opacity: 0.7;
}

.twinkling {
    background: transparent url('./images/twinkle-mono.svg') repeat top center;
    opacity: 0.4;
    animation: move-twink-back 200s linear infinite;
}

@keyframes move-twink-back {
    from {background-position:0 0;}
    to {background-position:-10000px 5000px;}
}

/* Contenedor principal */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* Encabezado */
header {
    text-align: center;
    padding: 3rem 0;
    position: relative;
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.logo {
    font-size: 3rem;
    font-weight: bold;
    color: var(--color-primary);
    margin-right: 1rem;
    font-family: var(--font-primary);
    text-shadow: 0 0 10px var(--shadow-color);
    display: inline-block;
    position: relative;
}

.logo::after {
    content: '';
    position: absolute;
    width: 120%;
    height: 120%;
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    top: -10%;
    left: -10%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.7;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Efecto glitch para el título */
.glitch {
    font-size: 3rem;
    font-weight: bold;
    font-family: var(--font-primary);
    position: relative;
    color: var(--color-primary);
    letter-spacing: 0.3rem;
    animation: glitch-skew 1s infinite linear alternate-reverse;
    text-shadow: 0 0 10px var(--shadow-color);
}

.glitch::before, .glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch::before {
    color: var(--color-secondary);
    animation: glitch-effect 2s infinite;
    clip-path: polygon(0 0, 100% 0, 100% 45%, 0 45%);
    transform: translate(-0.08em, -0.025em);
    opacity: 0.8;
}

.glitch::after {
    color: var(--color-accent);
    animation: glitch-effect 2.5s infinite;
    clip-path: polygon(0 60%, 100% 60%, 100% 100%, 0 100%);
    transform: translate(0.08em, 0.025em);
    opacity: 0.8;
}

@keyframes glitch-effect {
    0% {
        transform: translate(0);
    }
    10% {
        transform: translate(-5px, 5px);
    }
    20% {
        transform: translate(-5px, -5px);
    }
    30% {
        transform: translate(5px, 5px);
    }
    40% {
        transform: translate(5px, -5px);
    }
    50% {
        transform: translate(-5px, 5px);
    }
    60% {
        transform: translate(5px, 5px);
    }
    70% {
        transform: translate(-5px, -5px);
    }
    80% {
        transform: translate(0);
    }
    100% {
        transform: translate(0);
    }
}

@keyframes glitch-skew {
    0% {
        transform: skew(0deg);
    }
    10% {
        transform: skew(1deg);
    }
    20% {
        transform: skew(0deg);
    }
    30% {
        transform: skew(-1deg);
    }
    40% {
        transform: skew(0deg);
    }
    100% {
        transform: skew(0deg);
    }
}

.subtitle {
    font-size: 1.2rem;
    color: var(--color-secondary);
    font-family: var(--font-primary);
    letter-spacing: 0.1rem;
    margin-top: 0.5rem;
    position: relative;
    display: inline-block;
    color: #ffffff;
    font-weight: 500;
    text-shadow: 0 0 8px #ffffff, 0 0 15px rgba(255, 255, 255, 0.8);
}

.subtitle::before, .subtitle::after {
    content: '';
    position: absolute;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
    width: 150%;
    top: 50%;
    animation: scan-line 4s linear infinite;
}

.subtitle::before {
    left: -25%;
}

.subtitle::after {
    right: -25%;
    animation-delay: 2s;
}

@keyframes scan-line {
    0% {
        opacity: 0;
        transform: translateY(-10px);
    }
    50% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translateY(10px);
    }
}

/* Navegación */
.main-nav {
    display: flex;
    justify-content: center;
    margin-top: 1.5rem;
    gap: 2rem;
}

.main-nav a {
    color: #ffffff;
    font-weight: bold;
    text-shadow: 0 0 8px #ffffff, 0 0 15px rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-family: var(--font-primary);
    padding: 0.5rem 1rem;
    border: 1px solid transparent;
    transition: all 0.3s ease;
    position: relative;
}

.main-nav a:hover, .main-nav a.active {
    color: var(--color-primary);
    border-color: var(--color-primary);
    box-shadow: 0 0 10px var(--shadow-color);
}

.main-nav a::before {
    content: "";
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 50%;
    background-color: var(--color-primary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.main-nav a:hover::before, .main-nav a.active::before {
    width: 100%;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
    background-color: var(--color-very-light-gray);
    color: var(--color-secondary);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1rem;
}

.footer-links a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--color-primary);
}

/* Botones CTA */
.cta {
    text-align: center;
    margin: 3rem 0;
}

.cta-button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    margin: 0 0.5rem;
    background-color: var(--color-primary);
    color: var(--color-white);
    text-decoration: none;
    border-radius: 4px;
    font-family: var(--font-primary);
    font-weight: bold;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px var(--shadow-color);
}

.cta-button.secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}

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

/* Clases de utilidad */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 2.5rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 2.5rem; }