:root {
    --bg: #0a0a12;
    --accent: #ff0033;
    --text: #91bfff;
    --card-bg: #0f1626;
}
    
* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: 'Roboto Mono', monospace;
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
    line-height: 1.6;
}

#matrix {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1;
    opacity: 0.12;
}
    
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(5, 7, 15, 0.95);
    border-bottom: 2px solid var(--accent);
    z-index: 1000;
    padding: 15px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.nav-links a {
    color: var(--accent);
    text-decoration: none;
    margin-left: 25px;
    font-size: 1.05rem;
    font-weight: 500;
    transition: all 0.25s ease;
}

.nav-links a:hover {
    color: #ffffff;
    font-weight: 500;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.35);
}

.logo-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.5rem;
    font-weight: 400;
}

.logo-link {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

.logo-link:hover {
    color: var(--text);
}

.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 70px;
}

.hero img {
    width: 220px;
    max-width: 65%;
    filter: drop-shadow(0 0 15px rgba(255, 0, 51, 0.2));
    margin-bottom: 20px;
}

.hero h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.8rem;
    color: white;
    margin-bottom: 2px;  /* cambio */
}
.hero p {
    font-size: 1.2rem;
    color: var(--text);
    max-width: 700px;
    margin-top: 2px;  /* cambio */
}

section {
	padding: 90px 9%;
	margin-bottom: 5px;
    font-size: 0.80rem;
}

.markdowns {
	padding: 30px 15%;
    text-align: left;
    line-height: 1.7;
    color: #91bfff;
    font-size: 14px;
}

.markdowns h1, .markdowns h2, .markdowns h3 {
    color: var(--accent);
    margin-top: 1.5em;
    margin-bottom: 0.8em;
}

.markdowns p {
    margin-bottom: 0em; /* 0.90em */
}

.mmarkdowns ul, .markdowns ol {
    margin-bottom: 1.0em;
    padding-left: 1.3em;
}

.markdowns strong {
    color: #6ba8fd;
}

.markdowns img {
    display: block;
    margin: 25px auto;
    max-width: 90%;
    border-radius: 10px;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.6);
}

.markdowns a:link {
    color: var(--text);
    text-decoration: underline;
    font-weight: 500;
    transition: all 0.3s ease;
}

.markdowns a:visited {
    color: var(--text);
    text-decoration: underline;
    font-weight: 500;
}

/* after */
.markdowns a:hover,
.markdowns a:visited:hover {
    color: #ffffff;
    text-decoration: underline;
    transform: translateX(4px);
}

p {
    font-size: 0.90rem;
}

.content {
    padding: 70px 8%;
    max-width: 1100px;
    margin: 0 auto;
}

h1 {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent);
	text-align: center !important;
    margin-bottom: 0px;  /* cambio */
}

h2 {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent);
	text-align: center !important;
    margin-bottom: 0px;  /* cambio */
    font-size: 1.5rem;
}

h3 {
    color: #ffffff;
    margin: 35px 0 15px 0;
    font-size: 1.20rem;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    align-items: center;
    margin-bottom: 60px;
}

.photo-placeholder {
    width: 70%;
    height: 70%;
	object-fit: cover;
    background: #1a2333;
    border: 2px solid var(--accent);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
    text-align: center;
    font-size: 0.95rem;
    margin-left: 50px;
}

.placeholder-img {
    width: 100%;
    height: 320px;
    background: #1a2333;
    border: 1px dashed #ff0033;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #555;
    font-size: 1.1rem;
    margin: 20px 0;
    border-radius: 8px;
}

pre {
    background: #000;
    padding: 18px;
    border-radius: 6px;
    border: 1px solid #ff0033;
    overflow-x: auto;
    margin: 20px 0;
}


ul {
    padding-left: 20px;
    font-size: 0.85rem;
}

li {
    margin-bottom: 7px;
}

.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);   /* ← Esto fuerza 3 columnas */
    gap: 22px;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.card {
    background: var(--card-bg);
    border: 1px solid rgba(255, 0, 51, 0.35);
    border-radius: 10px;
    padding: 16px 12px;
    text-align: left;
    transition: all 0.3s;
    font-size: 0.92rem;
    height: 20px;
    min-height: 120px;
    max-width: 320px;
    display: flex;
    flex-direction: column;        /* ← Cambia a column */
    align-items: center;
    justify-content: flex-start;
    color: var(--text);
    text-decoration: none;
    gap: 3px;                     /* espacio entre icono y texto */
}

.card:hover {
    border-color: var(--accent);
    transform: translateY(-8px);
    box-shadow: 0 0 20px rgba(255, 0, 51, 0.3);
}

.card-button {
    background: var(--card-bg);
    border: 1px solid rgba(255, 0, 51, 0.35);
    border-radius: 10px;
    padding: 16px 12px;
    text-align: center;
    transition: all 0.3s;
    font-size: 0.92rem;
    height: 20px;
    min-height: 50px;
    max-width: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text);
    text-decoration: none;
    margin: 0 auto; /* --- */
}

.card-button:hover {
    border-color: var(--accent);
    transform: translateY(-8px);
    box-shadow: 0 0 20px rgba(255, 0, 51, 0.3);
}

.card-ctf {
    background: var(--card-bg);
    border: 1px solid rgba(255, 0, 51, 0.35);
    border-radius: 10px;
    padding: 20px;
    transition: all 0.3s; 
}

.card-ctf:hover {
    border-color: var(--accent);
    transform: translateY(-8px);
    box-shadow: 0 0 20px rgba(255, 0, 51, 0.3);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 18px;
}

.cert-card {
    background: var(--card-bg);
    border: 1px solid rgba(255, 0, 51, 0.4);
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
    transition: 0.3s;
}

.cert-card:hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(255, 0, 51, 0.4);
}

.cert-card img {
    width: 100%;
    height: 160px;
    object-fit: cover;
}

.modal {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.95);
    z-index: 3000;
    align-items: center;
    justify-content: center;
}

.modal-content {
    max-width: 90%;
    max-height: 90%;
}

.close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 40px;
    cursor: pointer;
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--accent);
    color: #000;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    cursor: pointer;
    box-shadow: 0 0 15px rgba(255, 0, 51, 0.5);
    z-index: 2000;
    transition: all 0.3s;
}

.back-to-top:hover {
    transform: scale(1.1);
    background: white;
}

.back-to-top:active {
    background: white;
    color: #d80000;
}

.terminal-header {
    background: #1a2333;
    padding: 6px 5px;
    border-radius: 6px 0px 0 0;
    text-align: center;
    font-size: 1.0.5rem;
    color: var(--accent);
    border-bottom: 1px solid var(--accent);
}

.terminal-frame {
    width: 100%;
    height: 620px;
    border: none;
    border-radius: 0 0 8px 8px;
}

/* Terminal */
.terminal-box {
    background: #0a0f1a;
    border: 2px solid var(--accent);
    border-radius: 10px;
    padding: 15px;
    margin: 30px auto;
    max-width: 750px;
    box-shadow: 0 0 25px rgba(255, 0, 51, 0.2);
}

.terminal-box a:link,
.terminal-box a:visited {
    color: var(--text);
    text-decoration: underline;
    font-weight: 400;
    font-size: 0.8rem;
    transition: all 0.3s ease;
}

.terminal-box a:hover,
.terminal-box a:visited:hover {
    color: #ffffff;
    text-decoration: underline;
    transform: translateX(4px);
}

.tab-btn.active {
    color: var(--accent) !important;
    border-bottom: 2px solid var(--accent) !important;
}

/* Terminal simulada */
.info {
    margin-bottom: 6px;
    color: #b6d8ff;
    font-size: 0.80rem;
}

.cursor {
    display: inline-block;
    background: #F0F0F0;
    width: 8px;
    height: 16px;
    vertical-align: middle;
    animation: blink 0.6s step-end infinite;
    font-size: 0.80rem;
}

.btn-ctf:hover {
    background: #ffffff !important;
    color: #000 !important;
    border-color: #ffffff;
    transform: translateY(-2px);
}

footer {
    background: #05070f;
    padding: 60px 20px 20px;
    text-align: center;
    border-top:1px solid var(--accent);
    font-size: 0.90rem;
}

.footer-content {
    max-width:950px;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap:10px;
    margin:0 auto;
    margin-bottom: 35px;
    text-align: left;
}

.footer-content strong {
    color: var(--accent);
}

.footer-link {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;        /* ← Muy importante aquí */
    display: inline-block;            /* ← Necesario para que funcione bien el translate */
}

.footer-link:hover {
    color: #ffffff;
    font-weight: 500;
    text-shadow: 0 0 6px rgba(255, 255, 255, 0.3);
    transform: translateX(6px);       /* un poco más visible */
}

.footer-small {
    font-size: 0.85rem;
    opacity: 0.75;
    margin-top: 20px;
}