/* ============================================================
   OBEDIENTE AL — Estilos (tema oscuro, acento azul eléctrico)
   ============================================================ */
:root{
  --bg:#0b0e1a; --bg-2:#11152400; --panel:#141a2e; --panel-2:#1a2138;
  --line:#283150; --line-2:#323c63;
  --text:#e7ecf7; --muted:#8b96b5; --muted-2:#5e6890;
  --accent:#3da9fc; --accent-2:#1f7fe0; --accent-glow:rgba(61,169,252,.25);
  --green:#2bd47d; --red:#ff5d6c; --amber:#ffb13d; --purple:#a978ff; --gray:#7a86a8;
  --radius:14px; --radius-sm:9px;
  --shadow:0 10px 40px rgba(0,0,0,.45);
  --font:'Segoe UI',system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--font); color:var(--text); min-height:100vh;
  background:
    radial-gradient(1100px 600px at 80% -10%, rgba(61,169,252,.10), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(169,120,255,.08), transparent 60%),
    var(--bg);
  display:flex;
}
a{color:var(--accent);text-decoration:none}
h1,h2,h3{margin:0 0 .2em;font-weight:650;letter-spacing:.2px}

/* ---------- Sidebar ---------- */
.sidebar{
  width:248px; min-height:100vh; position:sticky; top:0; flex-shrink:0;
  background:linear-gradient(180deg,#0e1324,#0a0d18);
  border-right:1px solid var(--line); padding:22px 14px; display:flex; flex-direction:column;
}
.brand{display:flex;align-items:center;gap:12px;padding:4px 8px 20px;margin-bottom:8px;border-bottom:1px solid var(--line)}
.brand-mark{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;font-weight:800;
  background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#04101f;box-shadow:0 0 22px var(--accent-glow)}
.brand-logo{width:42px;height:42px;border-radius:11px;object-fit:cover;box-shadow:0 0 22px var(--accent-glow)}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:15px}
.brand-text span{font-size:11px;color:var(--muted-2);letter-spacing:2px;text-transform:uppercase}
.sidebar nav{display:flex;flex-direction:column;gap:3px;margin-top:14px;flex:1}
.sidebar-foot{border-top:1px solid var(--line);padding-top:10px;margin-top:10px}
.nav-link{display:flex;align-items:center;gap:11px;padding:10px 13px;border-radius:10px;color:var(--muted);
  font-size:14.5px;font-weight:500;transition:.15s}
.nav-link:hover{background:var(--panel);color:var(--text)}
.nav-link.active{background:linear-gradient(90deg,rgba(61,169,252,.18),rgba(61,169,252,.02));
  color:#fff;box-shadow:inset 2px 0 0 var(--accent)}
.nav-icon{width:20px;text-align:center;font-size:15px;color:var(--accent)}

/* ---------- Main ---------- */
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;gap:16px;padding:16px 28px;border-bottom:1px solid var(--line);
  position:sticky;top:0;background:rgba(11,14,26,.82);backdrop-filter:blur(10px);z-index:10}
.topbar h1{font-size:20px;flex:1}
.topbar-user{color:var(--muted);font-size:13px}
.hamburger{display:none;font-size:22px;cursor:pointer;color:var(--text)}
.content{padding:26px 28px;max-width:1180px;width:100%}

/* ---------- Flash ---------- */
.flash{padding:12px 16px;border-radius:10px;margin-bottom:18px;font-size:14px;border:1px solid}
.flash-ok{background:rgba(43,212,125,.10);border-color:rgba(43,212,125,.4);color:#7df0b3}
.flash-err{background:rgba(255,93,108,.10);border-color:rgba(255,93,108,.4);color:#ff97a1}

/* ---------- Cards / panels ---------- */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-bottom:20px}
.card h2{font-size:16px;margin-bottom:16px}
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

/* KPIs */
.kpi{background:linear-gradient(160deg,var(--panel-2),var(--panel));border:1px solid var(--line);
  border-radius:var(--radius);padding:18px 20px;position:relative;overflow:hidden;display:block;
  text-decoration:none;color:inherit;transition:border-color .15s,transform .15s}
a.kpi:hover{border-color:var(--accent);transform:translateY(-2px)}
.kpi::after{content:"";position:absolute;right:-30px;top:-30px;width:90px;height:90px;border-radius:50%;
  background:radial-gradient(circle,var(--accent-glow),transparent 70%)}
.kpi .k-label{color:var(--muted);font-size:12.5px;text-transform:uppercase;letter-spacing:.6px}
.kpi .k-value{font-size:28px;font-weight:750;margin-top:6px}
.kpi .k-sub{color:var(--muted-2);font-size:12px;margin-top:2px}

/* ---------- Section header ---------- */
.page-head{display:flex;align-items:center;gap:14px;margin-bottom:20px;flex-wrap:wrap}
.page-head h2{font-size:19px;flex:1}
.page-sub{color:var(--muted);font-size:14px;margin:-12px 0 22px}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:7px;padding:10px 16px;border-radius:10px;border:1px solid var(--line-2);
  background:var(--panel-2);color:var(--text);font-size:14px;font-weight:550;cursor:pointer;transition:.15s;font-family:inherit}
.btn:hover{border-color:var(--accent);color:#fff}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));border:none;color:#04101f;
  box-shadow:0 6px 20px var(--accent-glow)}
.btn-primary:hover{filter:brightness(1.08);color:#04101f}
.btn-sm{padding:6px 12px;font-size:13px}
.btn-danger{border-color:rgba(255,93,108,.4);color:#ff97a1}
.btn-danger:hover{background:rgba(255,93,108,.12);border-color:var(--red)}
.btn-ghost{background:transparent}
.btn-group{display:flex;gap:8px;flex-wrap:wrap}

/* ---------- Tables ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}
table{width:100%;border-collapse:collapse;font-size:14px}
th{text-align:left;padding:13px 16px;color:var(--muted);font-weight:600;font-size:12.5px;
  text-transform:uppercase;letter-spacing:.4px;background:var(--panel-2);border-bottom:1px solid var(--line)}
td{padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:middle}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:rgba(61,169,252,.045)}
.t-actions{display:flex;gap:6px;justify-content:flex-end}
.t-num{font-variant-numeric:tabular-nums;font-weight:600}

/* ---------- Forms ---------- */
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px;font-weight:550}
.field .req{color:var(--accent)}
input[type=text],input[type=email],input[type=tel],input[type=password],input[type=number],
input[type=date],input[type=url],select,textarea{
  width:100%;padding:11px 13px;background:var(--bg);border:1px solid var(--line-2);border-radius:10px;
  color:var(--text);font-size:14.5px;font-family:inherit;transition:.15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}
textarea{resize:vertical;min-height:90px;line-height:1.5}
select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238b96b5'%3E%3Cpath d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field-row-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
.hint{font-size:12px;color:var(--muted-2);margin-top:5px}

/* ---------- Badges ---------- */
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:600;border:1px solid}
.badge-gray{background:rgba(122,134,168,.12);color:#9aa6c9;border-color:rgba(122,134,168,.3)}
.badge-blue{background:rgba(61,169,252,.12);color:#7fc4ff;border-color:rgba(61,169,252,.35)}
.badge-green{background:rgba(43,212,125,.12);color:#6ef0ad;border-color:rgba(43,212,125,.35)}
.badge-red{background:rgba(255,93,108,.12);color:#ff97a1;border-color:rgba(255,93,108,.35)}
.badge-amber{background:rgba(255,177,61,.12);color:#ffce85;border-color:rgba(255,177,61,.35)}
.badge-purple{background:rgba(169,120,255,.12);color:#c6a8ff;border-color:rgba(169,120,255,.35)}

/* ---------- Empty state ---------- */
.empty{text-align:center;padding:50px 20px;color:var(--muted)}
.empty .em-icon{font-size:40px;opacity:.5;margin-bottom:10px}

/* ---------- Prompts ---------- */
.prompt-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}
.prompt-tab{padding:9px 16px;border-radius:30px;border:1px solid var(--line-2);background:var(--panel-2);
  color:var(--muted);font-size:14px;cursor:pointer;transition:.15s}
.prompt-tab:hover{border-color:var(--accent);color:var(--text)}
.prompt-tab.active{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#04101f;border:none;font-weight:600}
.prompt-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin-bottom:14px}
.prompt-card .p-head{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.prompt-card .p-head h3{font-size:15px;flex:1}
.prompt-body{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:14px;
  font-size:13.5px;color:#c7d0ea;white-space:pre-wrap;line-height:1.6;max-height:230px;overflow:auto;font-family:'Consolas',monospace}
.p-tags{margin-top:10px}
.p-tag{display:inline-block;font-size:11.5px;color:var(--muted);background:var(--panel-2);
  padding:2px 9px;border-radius:20px;margin-right:6px;border:1px solid var(--line)}
.copied{color:var(--green)!important;border-color:var(--green)!important}

/* ---------- Line items editor ---------- */
.items-table input{padding:8px 10px}
.items-table td{padding:6px}
.line-total{text-align:right;font-weight:600;font-variant-numeric:tabular-nums}
.totals{margin-left:auto;max-width:340px;margin-top:18px}
.totals .row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.totals .row.grand{border-bottom:none;font-size:19px;font-weight:750;color:#fff;padding-top:14px}
.totals .row .lbl{color:var(--muted)}

/* ---------- Login ---------- */
.login-wrap{margin:auto;width:100%;max-width:400px;padding:40px 20px}
.login-card{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:36px 32px;box-shadow:var(--shadow)}
.login-brand{text-align:center;margin-bottom:26px}
.login-brand .brand-mark{margin:0 auto 14px}
.login-brand h1{font-size:22px}
.login-brand p{color:var(--muted-2);letter-spacing:3px;text-transform:uppercase;font-size:11px;margin:4px 0 0}
body.login{display:flex;align-items:center;justify-content:center}

/* ---------- Detail rows ---------- */
.detail-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 26px}
.detail-grid .d-label{color:var(--muted);font-size:12.5px;text-transform:uppercase;letter-spacing:.4px}
.detail-grid .d-val{font-size:15px;margin-top:2px}
.logo-preview,.sign-preview{max-width:160px;max-height:90px;border-radius:10px;border:1px solid var(--line);
  background:#fff;padding:8px;margin-top:10px}

/* ---------- Responsive ---------- */
@media(max-width:880px){
  .sidebar{position:fixed;z-index:50;transform:translateX(-100%);transition:.25s;height:100vh}
  #nav-toggle:checked ~ .sidebar{transform:translateX(0)}
  .hamburger{display:block}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .field-row,.field-row-3{grid-template-columns:1fr}
  .content{padding:18px}
}