/* Neotech corporate theme with multi-theme switcher, a11y and components */
:root{ --bg:#0c0f10; --surf:#12151a; --ink:#ffffff; --muted:#cfd8dc; --pri:#00bcd4; --pri-2:#0099b3; --card:#0f141b; --border:#1f2833; --shadow:rgba(0,0,0,.35); --radius:18px; }
:root[data-theme="oscuro"]{ --bg:#0c0f10; --surf:#12151a; --ink:#ffffff; --muted:#cfd8dc; --pri:#00bcd4; --pri-2:#0099b3; --card:#0f141b; --border:#1f2833; --shadow:rgba(0,0,0,.35); }
:root[data-theme="claro"]{ --bg:#f7fafc; --surf:#ffffff; --ink:#0c0f10; --muted:#334155; --pri:#0ea5e9; --pri-2:#0284c7; --card:#ffffff; --border:#e5e7eb; --shadow:rgba(0,0,0,.1); }
:root[data-theme="alto"]{ --bg:#000000; --surf:#000000; --ink:#ffffff; --muted:#ffffff; --pri:#ffffff; --pri-2:#e6e6e6; --card:#000000; --border:#ffffff; --shadow:rgba(255,255,255,.2); }
:root[data-theme="sepia"]{ --bg:#f4ecd8; --surf:#fbf5e6; --ink:#3b2f2f; --muted:#5c4b3b; --pri:#b7791f; --pri-2:#975a16; --card:#fff8e7; --border:#e2d3b5; --shadow:rgba(60,40,10,.15); }
*{box-sizing:border-box} html,body{height:100%} body{margin:0;font-family:Inter,system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.6}
.header{position:sticky;top:0;z-index:5;display:flex;gap:1rem;align-items:center;justify-content:space-between;background:var(--surf);padding:1rem 2rem;border-bottom:1px solid var(--border);box-shadow:0 6px 20px var(--shadow)}
.brand img{height:48px}
.nav a{color:var(--ink);text-decoration:none;margin:0 .75rem;font-weight:600;opacity:.9}
.nav a.active,.nav a:hover{color:var(--pri)}
.hero{padding:6rem 2rem;text-align:center;background:linear-gradient(135deg,#0d1b2a,#1b263b);border-bottom:2px solid var(--pri)}
.hero h1{font-size:clamp(2rem,4.2vw,3rem);margin:0 0 .75rem}
.subtitle{color:var(--muted);max-width:900px;margin:0 auto 1.5rem}
.cta-row{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}
.btn{display:inline-block;background:var(--pri);color:#001015;text-decoration:none;padding:.85rem 1.25rem;border-radius:12px;font-weight:800;box-shadow:0 8px 24px var(--shadow)}
.btn:hover{background:var(--pri-2)}
.btn.ghost{background:transparent;color:var(--ink);border:2px solid var(--pri)}
.section{padding:4rem 2rem;max-width:1100px;margin-inline:auto}
.section.alt{background:radial-gradient(1200px 400px at 50% -100px, rgba(0,188,212,.12), transparent)}
.section h2{color:var(--pri);margin-top:0}
.bullets{display:grid;gap:.5rem;padding-left:1.25rem}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem;margin-top:1rem}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;box-shadow:0 6px 18px var(--shadow)}
.footer{border-top:1px solid var(--border);padding:2rem;text-align:center;background:#101417;color:var(--muted)}
.contact-list{list-style:none;padding:0;display:grid;gap:.4rem}
/* Accessibility toolbar */ #a11ybar{position:fixed;right:1rem;bottom:1rem;display:flex;gap:.5rem;background:var(--card);border:1px solid var(--border);padding:.4rem;border-radius:12px;box-shadow:0 10px 24px var(--shadow);z-index:999}
#a11ybar button{background:var(--surf);color:var(--ink);border:1px solid var(--border);border-radius:8px;padding:.35rem .6rem;font-weight:800;cursor:pointer}
/* Modal gallery */ #modal{position:fixed;inset:0;display:none} #modal.open{display:block} #modal .m-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(2px)} #modal .m-card{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);background:var(--card);border:1px solid var(--border);border-radius:18px;box-shadow:0 18px 50px var(--shadow);padding:1rem;max-width:min(90vw,720px)} #modal img{width:100%;height:auto;border-radius:12px;border:1px solid var(--border)} #modal .m-close{position:absolute;right:.5rem;top:.5rem;background:var(--surf);border:1px solid var(--border);border-radius:999px;width:36px;height:36px;font-size:20px;color:var(--ink);cursor:pointer} #modal .cap{margin:.6rem 0 0;color:var(--muted)}
/* Forms */ .contact-form{margin:1rem 0 0;display:grid;gap:.75rem;background:var(--card);border:1px solid var(--border);padding:1rem;border-radius:var(--radius)} .contact-form label{display:grid;gap:.35rem;font-weight:700} .contact-form input,.contact-form textarea{background:var(--surf);color:var(--ink);border:1px solid var(--border);border-radius:10px;padding:.65rem} .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:.75rem}
/* Theme switcher menu */ .theme-switcher{position:relative} .theme-btn{background:var(--card);color:var(--ink);border:1px solid var(--border);padding:.55rem .9rem;border-radius:10px;font-weight:700;cursor:pointer} .theme-menu{position:absolute;right:0;top:calc(100% + .5rem);background:var(--card);border:1px solid var(--border);border-radius:12px;box-shadow:0 12px 28px var(--shadow);min-width:220px;display:none} .theme-menu.open{display:block} .theme-menu button{display:block;width:100%;background:transparent;border:0;color:var(--ink);text-align:left;padding:.7rem .9rem;cursor:pointer} .theme-menu button:hover{background:rgba(127,127,127,.08)}
/* Portfolio tags */ .cards.portfolio .card h3{margin:.2rem 0 .5rem} .cards.portfolio .card p{margin:0 0 .75rem} .card .tags{display:flex;gap:.4rem;flex-wrap:wrap} .tag{border:1px solid var(--border);border-radius:999px;padding:.15rem .5rem;font-size:.8rem;color:var(--muted)}