:root{
  --ink:#0f2230; --ink-2:#17313f; --ink-3:#24485a;
  --signal:#12a6b5; --signal-d:#0c7f8c; --amber:#f0a23c;
  --paper:#f4f7f8; --white:#fff; --line:#dce4e8; --text:#17252e; --muted:#667a85;
  --ok:#1f9d6b; --ok-bg:#dff5ea; --follow:#4f63cf; --follow-bg:#e6e9fa;
  --pend:#a86a0b; --pend-bg:#fdefd5; --proc:#0c7f8c; --proc-bg:#dcf2f5;
  --side-w:252px; --side-w-c:72px;
  --font-head:'Sora',system-ui,sans-serif; --font-body:'IBM Plex Sans',system-ui,sans-serif;
}
*{box-sizing:border-box}
body{font-family:var(--font-body);color:var(--text);background:var(--paper);margin:0}
h1,h2,h3,h4,.brand{font-family:var(--font-head)}
.muted{color:var(--muted)}
:focus-visible{outline:2px solid var(--signal);outline-offset:2px}

/* ---------- Botones ---------- */
.btn-signal{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;background:var(--signal);color:#04252a;border:0;
  font-weight:600;padding:.8rem 1.5rem;border-radius:10px;text-decoration:none;transition:background .2s,transform .2s;cursor:pointer}
.btn-signal:hover{background:#3cc0cd;color:#04252a;transform:translateY(-1px)}
.btn-sm-x{padding:.5rem 1.1rem;font-size:.9rem}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--text);border-radius:8px;padding:.45rem .9rem;font-weight:500;transition:border-color .2s,background .2s}
.btn-ghost:hover{border-color:var(--signal);background:#f1fbfc}

/* ---------- Marca ---------- */
.brand{display:flex;align-items:center;gap:.7rem;color:#fff;text-decoration:none;font-weight:700;font-size:1.05rem;letter-spacing:-.01em}
.brand-mark{width:30px;height:30px;border-radius:9px;flex:none;position:relative;background:var(--ink-3);overflow:hidden}
.brand-mark::before{content:"";position:absolute;left:-4px;right:-4px;top:13px;height:3px;background:var(--signal);transform:rotate(-24deg)}
.brand-mark::after{content:"";position:absolute;width:8px;height:8px;border-radius:50%;background:var(--amber);right:5px;top:6px}

/* ---------- Landing ---------- */
body.landing{background:var(--ink);color:#fff;min-height:100vh;overflow-x:hidden}
#fiber{position:fixed;inset:0;z-index:0}
.land-top,.hero,.land-strip{position:relative;z-index:1}
.land-top{display:flex;justify-content:space-between;align-items:center;padding:1.4rem clamp(1.2rem,5vw,4rem)}
.hero{padding:clamp(3rem,12vh,8rem) clamp(1.2rem,5vw,4rem) 3rem;max-width:1100px}
.hero h1{font-weight:800;font-size:clamp(2.3rem,6.4vw,5rem);line-height:1.04;letter-spacing:-.035em;margin:0 0 1.4rem}
.ht-line{display:block;transition:transform .35s cubic-bezier(.2,.8,.2,1)}
.ht-line:nth-child(3){color:var(--signal)}
.hero-sub{max-width:560px;font-size:1.12rem;line-height:1.65;color:#b9cbd3}
.hero-cta{display:flex;align-items:center;gap:1.4rem;flex-wrap:wrap;margin-top:2rem}
.hero-hint{color:#7f98a3;font-size:.88rem}
.land-strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:2rem;padding:2.5rem clamp(1.2rem,5vw,4rem) 4rem;
  border-top:1px solid rgba(255,255,255,.1);margin-top:3rem;background:rgba(15,34,48,.7);backdrop-filter:blur(6px)}
.land-strip b{display:block;font-family:var(--font-head);margin-bottom:.35rem}
.land-strip span{color:#a8bcc5;font-size:.95rem;line-height:1.55}

/* ---------- Login ---------- */
body.auth{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);min-height:100vh;background:#fff}
.auth-side{background:var(--ink);padding:2.2rem clamp(1.5rem,4vw,3.5rem);display:flex;flex-direction:column;justify-content:space-between}
.auth-claim{font-family:var(--font-head);color:#fff;font-size:clamp(1.5rem,2.6vw,2.2rem);font-weight:700;line-height:1.25;max-width:420px;letter-spacing:-.02em}
.auth-main{display:flex;align-items:center;justify-content:center;padding:2rem}
.auth-form{width:100%;max-width:380px}
.auth-form h1{font-size:1.8rem;font-weight:800;letter-spacing:-.02em;margin-bottom:.3rem}
.auth-form label{display:block;font-weight:500;font-size:.9rem;margin:1.1rem 0 .35rem}
.field{width:100%;border:1px solid var(--line);border-radius:10px;padding:.7rem .9rem;font:inherit;background:#fff;transition:border-color .2s,box-shadow .2s}
.field:focus{border-color:var(--signal);box-shadow:0 0 0 3px rgba(18,166,181,.18);outline:0}
.pw-wrap{position:relative}.pw-wrap .field{padding-right:5.2rem}
.pw-toggle{position:absolute;right:.5rem;top:50%;transform:translateY(-50%);border:0;background:none;color:var(--signal-d);font-weight:600;font-size:.85rem;padding:.3rem .5rem}
.auth-form .btn-signal{margin-top:1.6rem}
.auth-error{background:#fdecea;color:#9b2c22;border-radius:10px;padding:.7rem .9rem;margin-top:1rem;font-size:.92rem}
.back-link{display:block;text-align:center;margin-top:1.2rem;color:var(--muted);font-size:.9rem}
@media(max-width:820px){body.auth{grid-template-columns:1fr}.auth-side{padding:1.4rem}.auth-claim{display:none}}

/* ---------- App shell ---------- */
body.app{display:flex;min-height:100vh}
#sidebar{width:var(--side-w);background:var(--ink);color:#c7d6dc;display:flex;flex-direction:column;padding:1.1rem .8rem;position:sticky;top:0;height:100vh;
  transition:width .28s cubic-bezier(.4,0,.2,1);flex:none;overflow:hidden;z-index:50}
#sidebar .brand{padding:.2rem .5rem 1.4rem}
#sidebar nav{display:flex;flex-direction:column;gap:.25rem;flex:1}
.nav-item{display:flex;align-items:center;gap:.9rem;padding:.7rem .75rem;border-radius:10px;color:#b4c6ce;text-decoration:none;white-space:nowrap;position:relative;
  transition:background .2s,color .2s,padding .2s}
.nav-item i{font-size:1.2rem;flex:none;width:1.4rem;text-align:center}
.nav-item:hover{background:var(--ink-2);color:#fff}
.nav-item.active{background:var(--ink-2);color:#fff}
.nav-item.active::before{content:"";position:absolute;left:-.8rem;top:20%;bottom:20%;width:4px;border-radius:0 4px 4px 0;background:var(--signal)}
.side-foot{border-top:1px solid rgba(255,255,255,.08);padding-top:.7rem}
.label{transition:opacity .2s}
body.collapsed #sidebar{width:var(--side-w-c)}
body.collapsed .label{opacity:0;pointer-events:none}
#main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;gap:1rem;padding:.8rem 1.6rem;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40}
.page-title{font-size:1.2rem;font-weight:700;margin:0;letter-spacing:-.01em;flex:1}
.icon-btn{border:0;background:none;font-size:1.5rem;line-height:1;padding:.3rem .5rem;border-radius:8px;color:var(--ink)}
.icon-btn:hover{background:var(--paper)}
.user-chip{display:flex;align-items:center;gap:.65rem}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--ink);color:#fff;display:grid;place-items:center;font-weight:600;font-family:var(--font-head)}
.user-meta{display:flex;flex-direction:column;line-height:1.2;font-size:.88rem}.user-meta small{color:var(--muted)}
.content{padding:1.6rem;flex:1;min-width:0}
#scrim{display:none}
@media(max-width:991px){
  #sidebar{position:fixed;left:0;transform:translateX(-100%);transition:transform .28s;width:var(--side-w)}
  body.side-open #sidebar{transform:none}
  body.side-open #scrim{display:block;position:fixed;inset:0;background:rgba(10,20,28,.5);z-index:45}
  body.collapsed .label{opacity:1;pointer-events:auto}
  .user-meta{display:none}
}

/* ---------- Componentes ---------- */
.panel{background:#fff;border:1px solid var(--line);border-radius:14px;padding:1.2rem 1.3rem}
.panel h2{font-size:1rem;font-weight:700;margin:0 0 .2rem}
.panel .sub{color:var(--muted);font-size:.85rem;margin-bottom:1rem}
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:1rem;margin-bottom:1.2rem}
.kpi{background:#fff;border:1px solid var(--line);border-radius:14px;padding:1rem 1.2rem;border-left:4px solid var(--signal)}
.kpi.k-amber{border-left-color:var(--amber)}.kpi.k-ink{border-left-color:var(--ink)}.kpi.k-ok{border-left-color:var(--ok)}
.kpi small{color:var(--muted);font-size:.82rem}
.kpi b{display:block;font-family:var(--font-head);font-size:1.9rem;line-height:1.15;letter-spacing:-.02em}
.kpi em{font-style:normal;color:var(--muted);font-size:.8rem}
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(420px,100%),1fr));gap:1rem;margin-bottom:1rem}
.chart-box{position:relative;height:290px}
.range-bar{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center;margin-bottom:1.2rem}
.seg{display:inline-flex;background:#fff;border:1px solid var(--line);border-radius:10px;padding:3px}
.seg button{border:0;background:none;padding:.4rem .9rem;border-radius:8px;font-weight:500;font-size:.9rem;color:var(--muted);transition:background .2s,color .2s}
.seg button.on{background:var(--ink);color:#fff}
.range-bar input[type=date]{border:1px solid var(--line);border-radius:8px;padding:.4rem .6rem;font:inherit;font-size:.9rem}
.empty{text-align:center;color:var(--muted);padding:1.2rem}

.badge-st{display:inline-block;padding:.2rem .6rem;border-radius:999px;font-size:.76rem;font-weight:600;white-space:nowrap}
.st-ok{background:var(--ok-bg);color:var(--ok)}.st-follow{background:var(--follow-bg);color:var(--follow)}
.st-pend{background:var(--pend-bg);color:var(--pend)}.st-proc{background:var(--proc-bg);color:var(--proc)}
.tbl{width:100%;border-collapse:collapse;font-size:.9rem}
.tbl th{text-align:left;color:var(--muted);font-weight:500;padding:.55rem .7rem;border-bottom:1px solid var(--line)}
.tbl td{padding:.6rem .7rem;border-bottom:1px solid #edf1f3;vertical-align:middle}
.tbl tr:last-child td{border-bottom:0}

/* ---------- Hoja de cálculo ---------- */
.sheet-tools{display:flex;gap:.6rem;align-items:center;flex-wrap:wrap;margin-bottom:.9rem}
.sheet-tools .count{margin-left:auto;color:var(--muted);font-size:.88rem}
.sheet-wrap{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:auto;max-height:calc(100vh - 215px)}
table.sheet{border-collapse:separate;border-spacing:0;min-width:1280px;width:100%;font-size:.86rem}
.sheet thead th{position:sticky;top:0;z-index:3;background:var(--ink);color:#e6f0f3;font-weight:600;padding:.6rem .6rem;border-right:1px solid var(--ink-3);white-space:nowrap}
.sheet tr.filters th{top:38px;background:#eef3f5;padding:.3rem;border-bottom:1px solid var(--line);border-right:1px solid var(--line)}
.sheet .flt{width:100%;border:1px solid transparent;background:#fff;border-radius:6px;padding:.28rem .45rem;font:inherit;font-size:.82rem}
.sheet .flt:focus{border-color:var(--signal);outline:0}
.sheet tbody{counter-reset:r}
.sheet tbody tr{counter-increment:r}
.sheet td{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:0;background:#fff}
.sheet tbody tr:hover td{background:#f6fbfc}
.sheet td.rn{background:#f1f5f7;color:var(--muted);text-align:center;width:44px;font-size:.78rem;position:sticky;left:0;z-index:1}
.sheet td.rn::before{content:counter(r)}
.sheet td.act{width:44px;text-align:center}
.cell{width:100%;border:0;background:transparent;padding:.55rem .6rem;font:inherit;font-size:.86rem;min-height:38px;color:var(--text)}
.cell:focus{outline:2px solid var(--signal);outline-offset:-2px;background:#fff}
.cell:disabled{color:var(--text);opacity:1;cursor:default}
select.cell{appearance:none;font-weight:600;cursor:pointer}
select.s-ok{background:var(--ok-bg);color:var(--ok)}select.s-follow{background:var(--follow-bg);color:var(--follow)}
select.s-pend{background:var(--pend-bg);color:var(--pend)}select.s-proc{background:var(--proc-bg);color:var(--proc)}
.cell.saving{background:#fff9e8}.cell.saved{background:#eafaf2;transition:background .8s}
.row-del{border:0;background:none;color:#b0bcc2;font-size:1rem;padding:.4rem}.row-del:hover{color:#c0392b}
.col-origin{min-width:250px}.col-req{min-width:290px}.col-st{min-width:150px}.col-resp{min-width:120px}.col-date{min-width:125px}.col-obs{min-width:240px}

/* Usuarios / configuración */
.origins-box{max-height:210px;overflow:auto;border:1px solid var(--line);border-radius:10px;padding:.6rem .8rem}
.origins-box label{display:flex;gap:.5rem;align-items:flex-start;font-size:.86rem;padding:.2rem 0}
.chip-list{display:flex;flex-direction:column;max-height:380px;overflow:auto;border:1px solid var(--line);border-radius:10px}
.chip-row{display:flex;align-items:center;gap:.5rem;padding:.45rem .8rem;border-bottom:1px solid #edf1f3;font-size:.88rem}
.chip-row:last-child{border-bottom:0}.chip-row span{flex:1}
.chip-row.off span{color:var(--muted);text-decoration:line-through}
.add-row{display:flex;gap:.5rem;margin-bottom:.8rem}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

.caps-warn{margin-top:.7rem;font-size:.85rem;color:var(--pend);background:var(--pend-bg);border-radius:8px;padding:.4rem .7rem}
.btn-signal:disabled{opacity:.7;cursor:wait;transform:none}

/* ---------- Créditos y Acerca de ---------- */
.app-foot{padding:1rem 1.6rem;border-top:1px solid var(--line);background:#fff;color:var(--muted);font-size:.84rem;text-align:center}
.app-foot b{color:var(--text)}.app-foot a{color:var(--signal-d);text-decoration:none}.app-foot a:hover{text-decoration:underline}
.land-credit{position:relative;z-index:1;text-align:center;padding:1.2rem;background:rgba(15,34,48,.7);color:#8fa6b0;font-size:.85rem}
.land-credit b{color:#fff}
.auth-credit{text-align:center;color:var(--muted);font-size:.82rem;margin-top:2rem}.auth-credit b{color:var(--text)}
.about-hero{background:var(--ink);color:#fff;border-radius:16px;padding:clamp(1.5rem,4vw,2.6rem);margin-bottom:1rem;position:relative;overflow:hidden}
.about-hero::after{content:"";position:absolute;right:-60px;top:-40px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(18,166,181,.45),transparent 70%)}
.about-hero h2{font-size:clamp(1.5rem,3.4vw,2.2rem);font-weight:800;letter-spacing:-.03em;margin:.4rem 0 .6rem;position:relative}
.about-hero p{max-width:640px;color:#b9cbd3;line-height:1.7;margin:0;position:relative}
.about-hero .ver{display:inline-block;background:var(--ink-3);color:#bfe9ee;border-radius:999px;padding:.15rem .7rem;font-size:.78rem;position:relative}
.mod-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:1rem}
.mod{display:flex;gap:.8rem}.mod i{font-size:1.3rem;color:var(--signal-d);flex:none;margin-top:.1rem}
.mod b{display:block;font-size:.95rem}.mod span{color:var(--muted);font-size:.85rem;line-height:1.5}
.tech{display:flex;flex-wrap:wrap;gap:.5rem}
.tech span{background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:.25rem .8rem;font-size:.84rem}
.dev-card{display:flex;align-items:center;gap:1.1rem;flex-wrap:wrap}
.dev-card .avatar{width:64px;height:64px;font-size:1.4rem;background:var(--signal);color:#04252a}
.dev-card h3{font-size:1.15rem;font-weight:700;margin:0}.dev-card p{margin:.15rem 0 0;color:var(--muted);font-size:.9rem}