/* ChangosTech · Edit — estilos compartidos (home y herramientas) */
:root{
  --bg:#f3f4f6;--panel:#ffffff;--panel2:#f7f8fa;--line:#e1e4e9;--ink:#15171b;--muted:#646c79;
  --accent:#e2463f;--accent-soft:#fdecea;--hover:#eef0f3;--ok:#1f9d55;--sel:#2f6fed;
  --radius:16px;--shadow:0 1px 2px rgba(0,0,0,.06),0 10px 30px rgba(0,0,0,.07);
  --c-pdf:#e2463f;--c-xls:#1f9d55;--c-doc:#2f6fed;--c-yt:#d81f26;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#121418;--panel:#1c1f24;--panel2:#22262c;--line:#30353d;--ink:#eceef1;--muted:#9aa1ad;
  --accent-soft:#3a1d1c;--hover:#2a2f36;--shadow:0 1px 2px rgba(0,0,0,.4),0 12px 34px rgba(0,0,0,.45)}
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.5 Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased}
a{color:inherit}
button,input,select,textarea{font:inherit;color:inherit}
svg.i{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* Header */
.hdr{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--panel) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.hdr-in{max-width:1180px;margin:0 auto;display:flex;align-items:center;gap:8px;padding:10px 20px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:700;letter-spacing:-.01em;margin-right:auto}
.brand img{width:32px;height:32px}
.brand small{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:0;margin-top:-2px}
.nav{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{text-decoration:none;padding:8px 12px;border-radius:9px;font-weight:500;font-size:14px;color:var(--muted);white-space:nowrap}
.nav a:hover{background:var(--hover);color:var(--ink)}
.nav a.on{color:var(--ink);background:var(--hover)}

/* Layout */
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.page-h{padding:34px 0 18px}
.page-h h1{font-size:30px;letter-spacing:-.025em;margin:0 0 6px;line-height:1.15}
.page-h p{margin:0;color:var(--muted);max-width:640px}
.crumb{font-size:13px;color:var(--muted);margin-bottom:10px}
.crumb a{text-decoration:none}.crumb a:hover{text-decoration:underline}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 16px;border-radius:10px;border:1px solid var(--line);background:var(--panel);cursor:pointer;font-weight:600;font-size:14px;text-decoration:none;white-space:nowrap;transition:background .12s,border-color .12s}
.btn:hover{background:var(--hover)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{background:color-mix(in srgb,var(--accent) 88%,#000)}
.btn.ghost{border-color:transparent;background:transparent}
.btn.sm{height:32px;padding:0 11px;font-size:13px;border-radius:8px}
.btn:disabled{opacity:.45;cursor:default}
.btn svg.i{width:18px;height:18px}

/* Tabs */
.tabs{display:flex;gap:4px;padding:4px;background:var(--panel2);border:1px solid var(--line);border-radius:12px;width:max-content;max-width:100%;overflow-x:auto;margin-bottom:18px}
.tabs button{border:0;background:transparent;height:38px;padding:0 16px;border-radius:9px;font-weight:600;font-size:14px;color:var(--muted);cursor:pointer;white-space:nowrap}
.tabs button.on{background:var(--panel);color:var(--ink);box-shadow:0 1px 3px rgba(0,0,0,.1)}

/* Cards & panels */
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.panel-pad{padding:22px}
.drop{border:2px dashed var(--line);border-radius:var(--radius);background:var(--panel);padding:44px 22px;text-align:center;cursor:pointer;transition:border-color .15s,background .15s}
.drop:hover,.drop.over{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 5%,var(--panel))}
.drop .ico{width:58px;height:58px;border-radius:16px;display:grid;place-items:center;margin:0 auto 14px;background:var(--accent-soft);color:var(--accent)}
.drop .ico svg.i{width:28px;height:28px}
.drop h3{margin:0 0 6px;font-size:19px;letter-spacing:-.01em}
.drop p{margin:0 0 18px;color:var(--muted)}
.muted{color:var(--muted)}
.small{font-size:13px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.spacer{flex:1}
.field{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:600}
.field input,.field select{height:40px;border:1px solid var(--line);border-radius:9px;padding:0 12px;background:var(--panel2);font-weight:400;font-size:14px}
.chk{display:inline-flex;align-items:center;gap:8px;font-size:14px;cursor:pointer}
.chk input{accent-color:var(--accent);width:16px;height:16px}
.filechip{display:flex;align-items:center;gap:12px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;background:var(--panel2)}
.filechip .fi{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;color:#fff;font-size:11px;font-weight:700;flex:none}
.filechip b{display:block;font-size:14px;word-break:break-all}
.filechip span{font-size:12.5px;color:var(--muted)}
.note{font-size:13px;color:var(--muted);background:var(--panel2);border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.note.warn{background:color-mix(in srgb,#f08c00 10%,var(--panel));border-color:color-mix(in srgb,#f08c00 35%,var(--line));color:var(--ink)}

/* Toast / busy */
.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,20px);background:#16181c;color:#fff;padding:11px 16px;border-radius:10px;font-size:14px;opacity:0;pointer-events:none;transition:all .2s;z-index:90;max-width:calc(100vw - 32px)}
.toast.show{opacity:1;transform:translate(-50%,0)}
.busy{position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:80;display:grid;place-items:center}
.busy>div{background:var(--panel);padding:18px 24px;border-radius:12px;display:flex;align-items:center;gap:12px;font-weight:500;box-shadow:var(--shadow)}
.spin{width:20px;height:20px;border:2.5px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:sp .8s linear infinite}
@keyframes sp{to{transform:rotate(360deg)}}

/* Footer */
.ftr{border-top:1px solid var(--line);margin-top:60px;padding:26px 0 40px;color:var(--muted);font-size:13px}
.ftr .wrap{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.ftr a{text-decoration:none;font-weight:600;color:var(--ink)}

@media (max-width:720px){
  .page-h h1{font-size:24px}
  .brand small{display:none}
  .hdr-in{padding:8px 14px;gap:4px}
  .wrap{padding:0 14px}
}