:root{
  --bg:#0b0d12;
  --bg-alt:#0f1219;
  --card:#141824;
  --border:#232a3a;
  --text:#e8ecf4;
  --muted:#9aa3b5;
  --accent:#22d3ee;
  --accent-2:#8b5cf6;
  --grad:linear-gradient(120deg,#22d3ee,#8b5cf6);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
.container{width:100%;max-width:1100px;margin:0 auto;padding:0 24px}
a{text-decoration:none;color:inherit}
img{max-width:100%}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* === NAV === */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;background:rgba(11,13,18,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.25rem;letter-spacing:-.02em}
.brand-accent{color:var(--accent)}
.nav-links{display:flex;align-items:center;gap:24px}
.nav-links a:not(.btn-cta){color:var(--muted);font-size:.92rem;transition:color .2s}
.nav-links a:hover{color:#fff}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:6px}
.nav-toggle span{width:24px;height:2px;background:#fff;transition:.3s}
.nav.open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav.open .nav-toggle span:nth-child(2){opacity:0}
.nav.open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* === HERO === */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;overflow:hidden;padding-top:64px}
.hero-bg{position:absolute;inset:0;background:
  radial-gradient(600px 400px at 80% 20%,rgba(139,92,246,.22),transparent 70%),
  radial-gradient(700px 500px at 10% 80%,rgba(34,211,238,.16),transparent 70%),
  var(--bg);z-index:0}
.hero-bg::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%)}
.hero-content{position:relative;z-index:1;max-width:820px}
.hero-tag{font-family:'Space Grotesk',sans-serif;font-size:.85rem;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:18px}
.hero-title{font-family:'Space Grotesk',sans-serif;font-size:clamp(2.5rem,6vw,4.5rem);font-weight:700;line-height:1.05;letter-spacing:-.03em;margin-bottom:20px}
.hero-sub{font-size:clamp(1rem,2vw,1.2rem);color:var(--muted);max-width:560px;margin-bottom:32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:40px}
.hero-meta{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:.9rem}
.hero-meta .dot{color:var(--accent)}

/* === BUTTONS === */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border-radius:10px;padding:12px 22px;font-family:'Space Grotesk',sans-serif;font-size:.95rem;font-weight:600;border:0;cursor:pointer;transition:.25s}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 24px rgba(99,102,241,.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(99,102,241,.45)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--border)}
.btn-ghost:hover{border-color:var(--accent);color:#fff}
.btn-sm{padding:8px 14px;font-size:.85rem}
.btn-cta{background:var(--grad);color:#fff}
.btn-cta:hover{transform:translateY(-1px)}

/* === SECTIONS === */
.section{padding:96px 0;position:relative}
.section-alt{background:var(--bg-alt);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.section-head{max-width:640px;margin-bottom:48px}
.section-kicker{font-family:'Space Grotesk',sans-serif;font-size:.8rem;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:12px}
.section-title{font-family:'Space Grotesk',sans-serif;font-size:clamp(1.8rem,4vw,2.6rem);font-weight:700;letter-spacing:-.02em;line-height:1.15}
.section-sub{color:var(--muted);margin-top:14px}

/* === CARDS === */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:30px;transition:.25s}
.card:hover{transform:translateY(-4px);border-color:var(--accent)}
.card-icon{font-size:1.6rem;color:var(--accent);margin-bottom:16px}
.card h3{font-family:'Space Grotesk',sans-serif;font-size:1.2rem;margin-bottom:10px}
.card p{color:var(--muted);font-size:.94rem}
.card-list{list-style:none;margin-top:16px;color:var(--muted);font-size:.9rem}
.card-list li{padding:5px 0 5px 22px;position:relative}
.card-list li::before{content:"→";position:absolute;left:0;color:var(--accent)}

/* === NOSOTROS === */
.about-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:start}
.about-text p:not(.section-kicker){color:var(--muted);margin-top:16px;font-size:.98rem}
.about-text strong{color:var(--text)}
.about-features{display:grid;gap:12px}
.feature{display:flex;align-items:center;gap:12px;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:14px 16px;font-size:.95rem}
.feature-check{width:22px;height:22px;flex-shrink:0;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700}

/* === PROYECTOS === */
.project{background:var(--card);border:1px solid var(--border);border-radius:16px;overflow:hidden;transition:.25s;display:flex;flex-direction:column}
.project:hover{transform:translateY(-4px);border-color:var(--accent)}
.project-thumb{height:160px;display:flex;align-items:center;justify-content:center;font-family:'Space Grotesk',sans-serif;font-size:3.4rem;font-weight:700;color:#fff;background:var(--grad)}
.project-logo{height:160px;display:flex;align-items:center;justify-content:center;background:#fff;padding:28px}
.project-logo img{max-width:60%;max-height:100%;object-fit:contain}
.project-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1}
.project-top{display:flex;align-items:center;justify-content:space-between}
.project-top h3{font-family:'Space Grotesk',sans-serif;font-size:1.2rem}
.project-year{font-size:.78rem;color:var(--accent);border:1px solid var(--accent);border-radius:999px;padding:3px 10px}
.project-body p{color:var(--muted);font-size:.93rem;flex:1}

/* === EQUIPO === */
.team-grid{display:grid;grid-template-columns:repeat(2,minmax(0,320px));gap:20px;justify-content:center}
.team{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:32px;text-align:center;transition:.25s}
.team:hover{transform:translateY(-4px);border-color:var(--accent)}
.avatar{width:84px;height:84px;margin:0 auto 16px;border-radius:50%;background:var(--grad);display:flex;align-items:center;justify-content:center;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.5rem;color:#fff;box-shadow:0 10px 30px rgba(99,102,241,.4)}
.team h3{font-family:'Space Grotesk',sans-serif;font-size:1.15rem;margin-bottom:4px}
.team p{color:var(--muted);font-size:.92rem}

/* === STACK === */
.stack-grid{display:flex;flex-direction:column;align-items:center;gap:14px}
.stack-row{display:flex;flex-wrap:wrap;justify-content:center;gap:14px}
.chip{display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid var(--border);border-radius:999px;padding:10px 22px;font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:1rem;transition:.25s}
.chip img{width:28px;height:28px}
.chip:hover{border-color:var(--accent);color:#fff;transform:translateY(-2px)}

/* === CONTACTO === */
.contact-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:30px;text-align:center;transition:.25s;display:block}
.contact-card:hover{transform:translateY(-4px);border-color:var(--accent)}
.contact-icon{font-size:1.4rem;color:var(--accent);line-height:2.4rem;height:2.4rem;display:inline-flex;align-items:center}
.contact-icon-lg{font-size:2.4rem;line-height:2.4rem;height:2.4rem}
.contact-card h3{font-family:'Space Grotesk',sans-serif;font-size:1.1rem;margin:12px 0 6px}
.contact-card p{color:var(--muted);font-size:.92rem;word-break:break-word}

/* === FOOTER === */
.footer{border-top:1px solid var(--border);padding:32px 0}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.footer p{color:var(--muted);font-size:.88rem}

/* === REVEAL === */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.visible{opacity:1;transform:none}

/* === ADMIN === */
.admin-nav{position:sticky;top:0;z-index:100;background:rgba(11,13,18,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:16px;padding:0 24px;height:56px}
.admin-nav-brand{font-family:'Space Grotesk',sans-serif;font-weight:700;color:#fff;text-decoration:none;white-space:nowrap}
.admin-badge{background:var(--grad);color:#fff;font-size:.68rem;padding:2px 8px;border-radius:999px;vertical-align:middle;font-weight:600}
.admin-nav-links{display:flex;gap:4px;overflow-x:auto;flex:1}
.admin-nav-links a{color:var(--muted);text-decoration:none;padding:4px 10px;border-radius:6px;white-space:nowrap;transition:.2s}
.admin-nav-links a:hover{color:#fff;background:rgba(255,255,255,.08)}
.admin-nav-links .nav-logout{color:#f43f5e;margin-left:auto}
.admin-main{padding:24px;max-width:1100px;margin:0 auto}
.admin-page .footer{display:none}
.admin-back{display:inline-flex;align-items:center;gap:4px;background:#222;color:#fff;padding:6px 14px;border-radius:6px;text-decoration:none;font-size:.82rem;font-weight:500;transition:background .2s}
.admin-back:hover{background:#444;color:#fff}
.admin-header-flex{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.admin-header-flex h1{margin-bottom:0;font-family:'Space Grotesk',sans-serif;font-size:1.6rem}
.admin-two-cols{display:grid;grid-template-columns:minmax(280px,400px) 1fr;gap:24px;align-items:start}
.login-box{max-width:380px;margin:80px auto 0}
.login-box h1{font-family:'Space Grotesk',sans-serif;text-align:center;margin-bottom:20px}
.form{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:26px}
.form label{display:block;margin-bottom:4px;font-weight:600;font-size:.85rem;color:var(--muted)}
.form input,.form textarea{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:var(--bg);color:var(--text);font-size:.95rem;margin-bottom:14px;font-family:inherit;transition:border .2s}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--accent)}
.form textarea{resize:vertical;min-height:90px}
.table-wrap{overflow-x:auto;background:var(--card);border:1px solid var(--border);border-radius:16px}
.table{width:100%;border-collapse:collapse}
.table th{background:var(--bg-alt);color:var(--text);padding:10px 12px;text-align:left;font-size:.85rem;white-space:nowrap;border-bottom:1px solid var(--border)}
.table td{padding:10px 12px;border-bottom:1px solid var(--border);font-size:.88rem;color:var(--text)}
.table tr:hover td{background:rgba(255,255,255,.03)}
.table img{border-radius:6px}
.btn-secondary{background:#2a3142;color:#fff}
.btn-secondary:hover{background:#3a4256}
.btn-danger{background:#d32f2f}
.btn-danger:hover{background:#b71c1c}
.error{color:#f87171;text-align:center;margin-bottom:12px;font-size:.9rem}
.msg{color:#4ade80;text-align:center;margin-bottom:12px;font-size:.9rem}
@media(max-width:768px){.admin-two-cols{grid-template-columns:1fr}}

/* === RESPONSIVE === */
@media(max-width:820px){
  .nav-toggle{display:flex}
  .nav-links{position:fixed;top:64px;left:0;right:0;flex-direction:column;align-items:flex-start;gap:4px;background:rgba(11,13,18,.98);padding:16px 24px 24px;border-bottom:1px solid var(--border);transform:translateY(-120%);transition:.3s;z-index:99}
  .nav-links a{width:100%;padding:10px 0;font-size:1rem}
  .nav.open .nav-links{transform:none}
  .grid-3,.grid-2,.about-grid{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr}
  .section{padding:72px 0}
  .footer-inner{flex-direction:column;text-align:center}
}