:root{
  --prim:#23262b; --acc:#a3a9b1;
  --bg:#f4f5f7; --card:#fff; --ink:#111827; --ink2:#4b5563; --mut:#6b7280; --line:#e5e7eb; --line2:#d1d5db;
  --ok:#0f7b4f; --okbg:#e7f6ee; --err:#b42318; --errbg:#fdecea; --warn:#a15c00; --warnbg:#fff4e0; --r:10px;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}
*{box-sizing:border-box}
[hidden]{display:none!important}
html,body{margin:0}
body{background:var(--bg);color:var(--ink);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:var(--prim)}
h1{font-size:22px;margin:0 0 2px;letter-spacing:-.02em;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
h2{font-size:15px;margin:0 0 12px}
h3{font-size:14px;margin:0 0 6px}
code{background:#eef0f3;border-radius:4px;padding:1px 5px;font-size:12px}
.muted{color:var(--mut)} .small{font-size:12px} .mono{font-variant-numeric:tabular-nums} .nowrap{white-space:nowrap} .r{text-align:right}
.clamp{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;max-width:520px}
.pre{white-space:pre-line}

/* Layout */
.app{display:grid;grid-template-columns:232px 1fr;min-height:100vh}
.side{background:var(--prim);color:#fff;display:flex;flex-direction:column;padding:18px 12px;position:sticky;top:0;height:100vh}
.brand{display:flex;flex-direction:column;align-items:flex-start;gap:6px;color:#fff;text-decoration:none;padding:2px 6px 16px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:12px}
.brand img{max-height:56px;max-width:100%;background:#fff;border-radius:8px;padding:6px 10px}
.brand-mark{width:34px;height:34px;border-radius:8px;background:var(--acc);color:var(--prim);display:grid;place-items:center;font-weight:800;font-size:17px}
.brand span{font-weight:700;line-height:1.15}
.brand small{display:block;font-weight:500;opacity:.6;font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;padding-left:2px}
.side nav{display:flex;flex-direction:column;gap:2px}
.side nav a{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.78);text-decoration:none;padding:9px 10px;border-radius:8px;font-weight:500}
.side nav a:hover{background:rgba(255,255,255,.08);color:#fff}
.side nav a.on{background:rgba(255,255,255,.14);color:#fff;box-shadow:inset 3px 0 0 var(--acc)}
.side svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
.side-foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center;gap:8px;font-size:12.5px;padding:12px 8px 0;border-top:1px solid rgba(255,255,255,.12);color:rgba(255,255,255,.7)}
.side-foot a{color:#fff}
.main{padding:28px 32px 90px;max-width:1240px;width:100%;min-width:0}
.page-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px;flex-wrap:wrap}
.page-head p{margin:0}

/* Cards / forms */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:20px;margin-bottom:16px}
.card.flush{padding:0}
.card.flush .tbl th:first-child{border-top-left-radius:var(--r)}
.card.flush .tbl th:last-child{border-top-right-radius:var(--r)}
.card.flush .tbl tr:last-child td:first-child{border-bottom-left-radius:var(--r)}
.card.flush .tbl tr:last-child td:last-child{border-bottom-right-radius:var(--r)}
.pdf-frame{overflow:hidden}
.card-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.card-head h2{margin:0}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 16px}
.form-grid h2{margin:0}
.form-grid.g3{grid-template-columns:2fr 1fr 1fr}
.span2{grid-column:1/-1}
.stack{display:flex;flex-direction:column;gap:12px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid-main{display:grid;grid-template-columns:1.15fr 1fr;gap:16px;align-items:start}
.form-grid{align-content:start}
.grid-main .card{margin-bottom:16px}
label{display:flex;flex-direction:column;gap:5px;font-size:12.5px;font-weight:600;color:var(--ink2)}
label.check{flex-direction:row;align-items:center;gap:8px;font-weight:500;color:var(--ink)}
input,select,textarea{font:inherit;font-size:14px;color:var(--ink);background:#fff;border:1px solid var(--line2);border-radius:8px;padding:8px 10px;width:100%;font-weight:400}
input[type=checkbox]{width:16px;height:16px;accent-color:var(--prim);flex:none}
input[type=color]{width:52px;height:36px;padding:2px}
input:focus,select:focus,textarea:focus{outline:2px solid color-mix(in srgb,var(--prim) 35%,transparent);border-color:var(--prim)}
input[readonly]{background:#f9fafb;color:var(--ink2)}
textarea{resize:vertical;line-height:1.5}
.color-row{display:flex;align-items:center;gap:10px}
.actions{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.vars{font-size:12px;color:var(--mut);display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.logo-box{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.logo-prev{width:200px;height:84px;border:1px dashed var(--line2);border-radius:8px;display:grid;place-items:center;background:#fafafa;padding:8px}
.logo-prev img{max-width:100%;max-height:100%}
.hint{font-size:12px;color:var(--mut);font-weight:400}
.sub-sec{border-top:1px solid var(--line);padding-top:12px;margin-top:4px}
.sub-sec h3{margin:0 0 2px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:1px solid var(--line2);background:#fff;color:var(--ink);border-radius:8px;padding:8px 14px;font:inherit;font-weight:600;font-size:13.5px;cursor:pointer;text-decoration:none;white-space:nowrap}
.btn:hover{border-color:#9ca3af}
.btn-prim{background:var(--prim);border-color:var(--prim);color:#fff}
.btn-prim:hover{filter:brightness(1.18);border-color:var(--prim)}
.btn-sm{padding:5px 10px;font-size:12.5px}
.btn-block{width:100%}
.btn-icon{padding:5px 9px}
.btn-ghost-danger{color:var(--err);border-color:transparent;background:transparent}
.btn-ghost-danger:hover{background:var(--errbg);border-color:transparent}
.btn[disabled]{opacity:.6;cursor:wait}
form.inline{display:inline}
button.link{background:none;border:none;padding:0;color:var(--prim);font:inherit;font-size:12.5px;cursor:pointer;text-align:left;text-decoration:underline;text-underline-offset:2px}

/* Alerts / pills */
.alert{padding:11px 14px;border-radius:8px;margin-bottom:14px;font-weight:500}
.alert-ok{background:var(--okbg);color:var(--ok)}
.alert-err{background:var(--errbg);color:var(--err)}
.alert-warn{background:var(--warnbg);color:var(--warn)}
.pill{display:inline-block;padding:2px 9px;border-radius:99px;font-size:12px;font-weight:600;background:#eef0f3;color:var(--ink2);white-space:nowrap}
.pill-ok,.st-paid{background:var(--okbg);color:var(--ok)}
.st-sent{background:#e8f0fe;color:#1d4ed8}
.st-partial{background:#f1e8fd;color:#6d28d9}
.st-overdue{background:var(--errbg);color:var(--err)}
.st-draft{background:#eef0f3;color:var(--ink2)}
.st-void{background:#f3f4f6;color:#9ca3af;text-decoration:line-through}
.txt-ok{color:var(--ok)} .txt-err{color:var(--err)} .txt-warn{color:var(--warn)}

/* Tables */
.tbl{width:100%;border-collapse:collapse}
.tbl th{text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--mut);font-weight:600;padding:11px 14px;background:#fafafa;border-bottom:1px solid var(--line);white-space:nowrap}
.tbl td{padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:middle}
.tbl tr:last-child td{border-bottom:none}
.tbl tr:hover td{background:#fbfbfc}
.tbl a{text-decoration:none}
.tbl th.r,.tbl td.r{text-align:right}
.tbl-wrap{overflow-x:auto}
tr.dim td{opacity:.55}
.empty{padding:40px;text-align:center;color:var(--mut)}

/* Dashboard */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:16px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:14px 16px;text-decoration:none;color:inherit;display:block}
a.stat:hover{border-color:var(--line2)}
.stat span{display:block;font-size:12px;color:var(--mut);font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.stat b{display:block;font-size:24px;letter-spacing:-.02em;line-height:1.25;font-variant-numeric:tabular-nums}
.stat small{display:block;font-size:12px;color:var(--mut);margin-top:2px}
.stat.warn b{color:var(--err)}
.filters{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap}
.filters input{flex:1;min-width:200px}
.filters select{width:auto;max-width:240px}
.seg{display:inline-flex;background:#e9ebef;border-radius:9px;padding:3px;gap:2px;flex-wrap:wrap}
.seg a{padding:6px 12px;border-radius:7px;text-decoration:none;color:var(--ink2);font-weight:600;font-size:13px;white-space:nowrap}
.seg a.on{background:#fff;color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.08)}
.seg a .n{color:var(--mut);font-weight:500;margin-left:3px}
.menu{position:relative;display:inline-block}
.menu-pop{display:none;position:absolute;right:0;top:calc(100% + 4px);background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 10px 30px rgba(0,0,0,.12);min-width:180px;z-index:20;padding:4px;text-align:left}
.menu.open .menu-pop{display:block}
.menu.up .menu-pop{top:auto;bottom:calc(100% + 4px)}
.menu-pop a,.menu-pop button{display:block;width:100%;text-align:left;padding:8px 10px;border-radius:6px;color:var(--ink);text-decoration:none;background:none;border:none;font:inherit;font-size:13px;cursor:pointer}
.menu-pop a:hover,.menu-pop button:hover{background:#f3f4f6}
.menu-pop .danger{color:var(--err)}
.menu-pop form{margin:0}
.card.flush .tbl-wrap{overflow:visible}

/* Items editor */
.add-row{display:flex;gap:8px;flex-wrap:wrap}
.add-row select{width:auto;min-width:280px}
.items-wrap{overflow-x:auto}
.items{width:100%;border-collapse:collapse;min-width:860px}
.items th{font-size:11.5px;text-transform:uppercase;letter-spacing:.05em;color:var(--mut);font-weight:600;text-align:left;padding:8px 6px;border-bottom:1px solid var(--line)}
.items td{padding:8px 6px;border-bottom:1px solid var(--line);vertical-align:top}
.items input,.items textarea{padding:7px 8px}
.items .c-desc{width:42%}
.items .c-desc textarea{margin-top:5px;font-size:12.5px;color:var(--ink2);min-height:34px}
.items .titulo{font-weight:600}
.items .c-num{width:12%}
.items .c-un{width:9%}
.items .c-pct{width:8%}
.items .c-tax{width:46px;text-align:center}
.items td.c-tax{padding-top:15px}
.items .c-act{width:92px;white-space:nowrap;text-align:right}
.items .c-num input,.items .c-pct input{text-align:right}
.items td.importe{padding-top:15px;font-weight:600;font-variant-numeric:tabular-nums;text-align:right}
.ico{border:none;background:none;cursor:pointer;color:var(--mut);font-size:16px;width:26px;height:30px;border-radius:6px}
.ico:hover{background:#f3f4f6;color:var(--ink)}
.ico.del:hover{background:var(--errbg);color:var(--err)}
.totals{display:flex;justify-content:space-between;gap:24px;margin-top:16px;flex-wrap:wrap}
.totals-inputs{display:grid;grid-template-columns:auto auto;gap:10px 12px;align-content:start}
.totals-inputs .disc{display:flex;gap:6px}
.totals-inputs .disc select{width:70px}
.totals-inputs input{width:120px;text-align:right}
.totals-box{display:grid;grid-template-columns:auto auto;gap:6px 28px;margin:0;min-width:300px;font-variant-numeric:tabular-nums}
.totals-box dt{color:var(--ink2)}
.totals-box dd{margin:0;text-align:right;font-weight:600}
.totals-box .grand{font-size:18px;color:var(--prim);font-weight:800;border-top:2px solid var(--prim);padding-top:8px;margin-top:4px}
.sticky-actions{position:sticky;bottom:0;background:rgba(244,245,247,.94);backdrop-filter:blur(6px);padding:12px 0;display:flex;gap:8px;justify-content:flex-end;align-items:center;border-top:1px solid var(--line);margin-top:8px;z-index:5;flex-wrap:wrap}
.sticky-actions .muted{margin-right:auto}
.client-pick{display:flex;gap:8px;align-items:flex-end}
.client-pick label{flex:1}

/* View */
.ver-grid{display:grid;grid-template-columns:1fr 310px;gap:16px;align-items:start}
.pdf-frame iframe{width:100%;height:calc(100vh - 170px);min-height:640px;border:0;display:block;background:#525659}
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 12px;margin:0;font-size:13.5px}
.kv dt{color:var(--mut)} .kv dd{margin:0;text-align:right;font-variant-numeric:tabular-nums}
.kv .big{font-size:17px;font-weight:800;color:var(--prim)}
.envio{padding:8px 0;border-top:1px solid var(--line);font-size:13px}
.envio:first-of-type{border-top:none}
.pago{display:flex;flex-direction:column;gap:6px;padding:10px 0;border-top:1px solid var(--line);font-size:13px}
.pago .actions{gap:6px}
.pago:first-of-type{border-top:none}
.pago .r{text-align:right;font-variant-numeric:tabular-nums}
.mail-form{max-width:760px}
.attach{display:flex;align-items:center;gap:8px;background:#f9fafb;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:13px;font-weight:600}
.attach svg{width:18px;height:18px;fill:none;stroke:var(--mut);stroke-width:1.8}
.pay-sum{display:flex;flex-wrap:wrap;gap:6px 18px;align-items:baseline;background:#f9fafb;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-size:13.5px}
.pay-sum b{font-variant-numeric:tabular-nums}
.grid-side{display:grid;grid-template-columns:1fr 300px;gap:16px;align-items:start}
hr{border:none;border-top:1px solid var(--line);margin:14px 0}

/* Settings tabs */
.tabs{margin-bottom:16px}

/* Modal */
dialog{border:none;border-radius:14px;padding:0;width:min(640px,94vw);box-shadow:0 30px 80px rgba(0,0,0,.3)}
dialog::backdrop{background:rgba(17,24,39,.45)}
dialog .card{margin:0;border:none}
dialog .dlg-foot{display:flex;justify-content:flex-end;gap:8px}

/* Login */
.login-body{display:grid;place-items:center;min-height:100vh;background:linear-gradient(160deg,var(--prim) 0 42%,var(--bg) 42%);padding:24px 0}
.login-card{background:#fff;width:min(380px,92vw);padding:30px;border-radius:14px;box-shadow:0 20px 60px rgba(0,0,0,.15);display:flex;flex-direction:column;gap:14px}
.login-card.wide{width:min(540px,92vw)}
.login-card h1{margin:0}
.login-card p{margin:0}
.login-logo{max-height:64px;max-width:220px;align-self:flex-start}
.login-links{display:flex;justify-content:space-between;font-size:13px}

@media (max-width:980px){
  .app{grid-template-columns:1fr}
  .side{position:static;height:auto;flex-direction:row;flex-wrap:wrap;align-items:center;gap:8px;padding:10px 12px}
  .brand{border:none;padding:4px;margin:0;flex-direction:row;align-items:center}
  .brand img{max-height:40px}
  .side nav{flex-direction:row;flex-wrap:wrap}
  .side nav a{padding:7px 9px;font-size:13px}
  .side-foot{margin:0 0 0 auto;border:none;padding:0;gap:10px}
  .main{padding:18px 16px 90px}
  .grid-main,.grid2,.ver-grid,.grid-side{grid-template-columns:1fr}
  .form-grid,.form-grid.g3{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .tbl .hide-sm{display:none}
  .card.flush .tbl-wrap{overflow-x:auto}
  .tbl td,.tbl th{padding:10px}
}
@media print{.side,.sticky-actions{display:none}}