/* ============ ComparaObra — sistema visual compartido ============ */
:root{
  --bg:#f7f8fa;
  --bg-alt:#ffffff;
  --ink:#161b22;
  --ink-mute:#5b6472;
  --line:#e4e7ec;
  --line-strong:#d3d8e0;
  --accent:#087f5b;
  --accent-dark:#056044;
  --accent-soft:#e6f7f1;
  --ok:#1f8a55;
  --ok-soft:#e7f6ee;
  --warn:#b5750f;
  --warn-soft:#fdf2df;
  --danger:#c22a3a;
  --danger-soft:#fdecee;
  --radius:12px;
  --shadow:0 1px 2px rgba(20,25,35,.05), 0 8px 24px -12px rgba(20,25,35,.12);
  --maxw:1180px;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0f1218; --bg-alt:#161b23; --ink:#eef1f6; --ink-mute:#98a2b3;
    --line:#252b36; --line-strong:#333b48; --accent:#5b86e8; --accent-dark:#4670d0;
    --accent-soft:#182238; --ok:#3fbf7f; --ok-soft:#12291e; --warn:#e0a940; --warn-soft:#2c2312;
    --danger:#ef5b6b; --danger-soft:#2c161a;
  }
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
html{overflow-x:hidden;scroll-behavior:smooth}
body{
  background:var(--bg); color:var(--ink);
  font:16px/1.6 "Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.2;margin:0 0 .5em;font-weight:700;letter-spacing:-.01em}
p{margin:0 0 1em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:10px;border:1px solid transparent;
  font-weight:600;font-size:15px;cursor:pointer;transition:transform .05s ease, opacity .15s ease;
  font-family:inherit;
}
.btn:hover{text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark)}
.btn-secondary{background:var(--bg-alt);color:var(--ink);border-color:var(--line-strong)}
.btn-secondary:hover{background:var(--accent-soft);border-color:var(--accent)}
.btn-danger{background:var(--danger-soft);color:var(--danger);border-color:transparent}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn-block{width:100%}

/* ---------- Top nav (marketing) ---------- */
.nav{border-bottom:1px solid var(--line);background:var(--bg-alt);position:sticky;top:0;z-index:40}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:var(--ink)}
.brand svg{flex:none}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{color:var(--ink-mute);font-weight:500;font-size:15px}
.nav-links a:hover{color:var(--ink);text-decoration:none}
.nav-cta{display:flex;gap:10px}
@media (max-width:760px){ .nav-links{display:none} }
@media (max-width:540px){
  .wrap{padding-left:16px;padding-right:16px}
  .nav .wrap{height:auto;min-height:66px;gap:10px;padding-top:9px;padding-bottom:9px}
  .nav .brand{font-size:16px}
  .nav-cta{gap:6px;min-width:0}
  .nav-cta .btn{padding:9px 11px;font-size:13px;white-space:nowrap}
}

/* ---------- App top bar (herramienta) ---------- */
.appbar{border-bottom:1px solid var(--line);background:var(--bg-alt)}
.appbar .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.pill{
  display:inline-flex;align-items:center;gap:8px;background:var(--accent-soft);
  color:var(--accent-dark);padding:7px 14px;border-radius:999px;font-weight:700;font-size:14px;
  transition:transform .15s ease;
}
.pill.bump{transform:scale(1.12)}
.appbar-right{display:flex;align-items:center;gap:14px}
@media (max-width:650px){
  .appbar .wrap{height:auto;min-height:64px;gap:10px;padding-top:8px;padding-bottom:8px;flex-wrap:wrap}
  .appbar-right{gap:7px;max-width:100%;flex-wrap:wrap;justify-content:flex-end}
  .appbar .badge-demo{display:none}
  .avatar-btn #avatar-email{max-width:90px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .pill{padding:6px 9px;font-size:12px}
}
.avatar-menu{position:relative}
.avatar-btn{
  display:flex;align-items:center;gap:8px;background:none;border:1px solid var(--line-strong);
  border-radius:999px;padding:6px 12px 6px 6px;cursor:pointer;color:var(--ink);font:inherit;font-weight:600;font-size:14px;
}
.avatar-circle{width:26px;height:26px;border-radius:50%;background:var(--accent);color:#fff;display:grid;place-items:center;font-size:12px;font-weight:700}
.dropdown{
  position:absolute;right:0;top:calc(100% + 8px);background:var(--bg-alt);border:1px solid var(--line);
  border-radius:10px;box-shadow:var(--shadow);min-width:180px;padding:6px;display:none;z-index:50;
}
.dropdown.open{display:block}
.dropdown a,.dropdown button{
  display:block;width:100%;text-align:left;padding:9px 12px;border-radius:7px;border:0;background:none;
  color:var(--ink);font:inherit;font-size:14px;cursor:pointer;
}
.dropdown a:hover,.dropdown button:hover{background:var(--accent-soft);text-decoration:none}

/* ---------- Demo badge ---------- */
.badge-demo{
  display:inline-flex;align-items:center;gap:8px;background:var(--warn-soft);color:var(--warn);
  border:1px solid color-mix(in srgb, var(--warn) 35%, transparent);
  padding:8px 14px;border-radius:9px;font-size:13.5px;font-weight:600;
}

/* ---------- Hero ---------- */
.hero{padding:76px 0 40px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;background:var(--accent-soft);color:var(--accent-dark);
  padding:6px 12px;border-radius:999px;font-size:13px;font-weight:700;margin-bottom:18px;
}
.hero h1{font-size:44px;max-width:640px}
@media (max-width:600px){ .hero h1{font-size:32px} }
.hero p.lead{font-size:18px;color:var(--ink-mute);max-width:560px}
.hero-ctas{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.trust-row{display:flex;gap:24px;margin-top:34px;flex-wrap:wrap;color:var(--ink-mute);font-size:13.5px}
.trust-row span{display:flex;align-items:center;gap:6px}

/* ---------- Before / after demo ---------- */
.demo-card{
  background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
}
.demo-tabs{display:flex;border-bottom:1px solid var(--line)}
.demo-tab{flex:1;padding:12px;text-align:center;font:700 13.5px inherit;color:var(--ink-mute);cursor:pointer;border:0;border-bottom:2px solid transparent;background:transparent}
.demo-tab.active{color:var(--accent-dark);border-color:var(--accent)}
.demo-tab:focus-visible{outline:3px solid var(--accent);outline-offset:-3px}
.demo-body{padding:22px}
.doc-mock{background:#fff;border:1px solid var(--line);border-radius:8px;padding:22px;font-size:12.5px;color:#333;line-height:1.9;font-family:ui-monospace,monospace}
.doc-mock .redacted{background:#111;color:#111;border-radius:2px;padding:0 3px}
.doc-mock .field{color:#8a8f98}

/* ---------- Sections ---------- */
section{padding:70px 0}
.section-head{text-align:center;max-width:640px;margin:0 auto 44px}
.section-head .eyebrow{margin-left:auto;margin-right:auto}
.section-head h2{font-size:32px}
.section-head p{color:var(--ink-mute);font-size:16.5px}

.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
@media (max-width:900px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.steps{grid-template-columns:1fr}}
.step{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.step-num{
  width:32px;height:32px;border-radius:9px;background:var(--accent-soft);color:var(--accent-dark);
  display:grid;place-items:center;font-weight:800;margin-bottom:14px;
}
.step h3{font-size:16px}
.step p{color:var(--ink-mute);font-size:14.5px;margin:0}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media (max-width:900px){.grid-3{grid-template-columns:1fr}}
.feature{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.feature svg{color:var(--accent);margin-bottom:14px}
.feature h3{font-size:17px}
.feature p{color:var(--ink-mute);font-size:14.5px;margin:0}
.faq-list{max-width:850px;margin:0 auto;display:grid;gap:12px}
.faq-list details{background:var(--bg-alt);border:1px solid var(--line);border-radius:12px;padding:0 20px}
.faq-list summary{cursor:pointer;font-weight:700;padding:18px 32px 18px 0}
.faq-list details p{color:var(--ink-mute);padding-bottom:18px;margin:0}

/* ---------- Pricing ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:stretch}
@media (max-width:900px){.plans{grid-template-columns:1fr;max-width:420px;margin:0 auto}}
.plan{
  background:var(--bg-alt);border:1px solid var(--line);border-radius:16px;padding:30px;
  display:flex;flex-direction:column;position:relative;
}
.plan.featured{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.plan-badge{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--accent);
  color:#fff;padding:4px 14px;border-radius:999px;font-size:12px;font-weight:700;white-space:nowrap;
}
.plan h3{font-size:20px;margin-bottom:4px}
.plan .price{font-size:38px;font-weight:800;margin:14px 0 2px}
.plan .price small{font-size:15px;font-weight:600;color:var(--ink-mute)}
.plan .credits{color:var(--ink-mute);font-size:14.5px;margin-bottom:20px}
.plan ul{list-style:none;padding:0;margin:0 0 24px;flex:1}
.plan li{display:flex;gap:10px;align-items:flex-start;margin-bottom:11px;font-size:14.5px;color:var(--ink-mute)}
.plan li svg{flex:none;margin-top:2px;color:var(--ok)}

/* ---------- Footer ---------- */
footer{border-top:1px solid var(--line);padding:40px 0;color:var(--ink-mute);font-size:14px}
.footer-grid{display:flex;justify-content:space-between;flex-wrap:wrap;gap:20px}
.footer-links{display:flex;gap:22px;flex-wrap:wrap}

/* ---------- Auth pages ---------- */
.auth-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}
.auth-card{background:var(--bg-alt);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);padding:36px;max-width:400px;width:100%}
.auth-card h1{font-size:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:6px;color:var(--ink-mute)}
.field input{
  width:100%;padding:11px 13px;border-radius:9px;border:1px solid var(--line-strong);
  background:var(--bg);color:var(--ink);font:inherit;font-size:15px;
}
.field input:focus{outline:2px solid var(--accent);outline-offset:1px}
.legal-check{display:flex;align-items:flex-start;gap:9px;margin:4px 0 18px;color:var(--ink-mute);font-size:13px}
.legal-check input{margin-top:4px;flex:none}
.form-msg{padding:11px 13px;border-radius:9px;font-size:14px;margin-bottom:14px;display:none}
.form-msg.show{display:block}
.form-msg.err{background:var(--danger-soft);color:var(--danger)}
.form-msg.ok{background:var(--ok-soft);color:var(--ok)}

/* ---------- App tool ---------- */
.app-shell{padding:32px 0 80px}
.tool-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:26px;align-items:start}
@media (max-width:980px){.tool-grid{grid-template-columns:1fr}}
.card{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.card-pad{padding:22px}
.dropzone{
  border:2px dashed var(--line-strong);border-radius:12px;padding:48px 20px;text-align:center;
  color:var(--ink-mute);cursor:pointer;transition:border-color .15s,background .15s;
}
.dropzone.drag{border-color:var(--accent);background:var(--accent-soft)}
.dropzone svg{margin:0 auto 12px;color:var(--accent)}
.det-list{list-style:none;margin:0;padding:0;max-height:520px;overflow:auto}
.det-item{
  display:flex;align-items:center;gap:12px;padding:11px 14px;border-bottom:1px solid var(--line);font-size:14px;
}
.det-item:last-child{border-bottom:0}
.det-tag{
  font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.03em;color:var(--accent-dark);
  background:var(--accent-soft);padding:3px 8px;border-radius:6px;flex:none;
}
.det-text{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-family:ui-monospace,monospace;font-size:13px}
.det-page{color:var(--ink-mute);font-size:12px;flex:none}
.switch{position:relative;width:38px;height:22px;flex:none}
.switch input{opacity:0;width:0;height:0}
.switch .track{position:absolute;inset:0;background:var(--line-strong);border-radius:999px;cursor:pointer;transition:.15s}
.switch .knob{position:absolute;top:2px;left:2px;width:18px;height:18px;background:#fff;border-radius:50%;transition:.15s;box-shadow:0 1px 3px rgba(0,0,0,.25)}
.switch input:checked + .track{background:var(--accent)}
.switch input:checked + .track .knob{transform:translateX(16px)}
.pagecanvas-wrap{position:relative;margin-bottom:18px;border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#fff}
.pagecanvas-wrap canvas{display:block;width:100%;height:auto}
.box-overlay{position:absolute;inset:0}
.det-rect{position:absolute;background:#000;opacity:.92;cursor:pointer}
.det-rect.off{background:transparent;border:1.5px dashed var(--danger);opacity:1}
.det-rect.manual{outline:2px solid var(--ok)}
.status-line{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-mute);margin-bottom:14px}
.spinner{width:16px;height:16px;border:2px solid var(--line-strong);border-top-color:var(--accent);border-radius:50%;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.notice{padding:12px 14px;border-radius:9px;font-size:13.5px;margin-bottom:16px}
.notice.info{background:var(--accent-soft);color:var(--accent-dark)}
.notice.warn{background:var(--warn-soft);color:var(--warn)}
.notice.err{background:var(--danger-soft);color:var(--danger)}
.notice.ok{background:var(--ok-soft);color:var(--ok)}

/* ---------- Toast (never alert()) ---------- */
#toast-host{position:fixed;bottom:20px;right:20px;display:flex;flex-direction:column;gap:10px;z-index:999}
.toast{
  background:var(--ink);color:var(--bg);padding:12px 16px;border-radius:9px;font-size:14px;box-shadow:var(--shadow);
  max-width:340px;animation:toast-in .15s ease;
}
@keyframes toast-in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.toast.err{background:var(--danger)}
.toast.ok{background:var(--ok)}

/* ---------- Modal ---------- */
.modal-bg{position:fixed;inset:0;background:rgba(10,14,20,.5);display:none;align-items:center;justify-content:center;z-index:200;padding:20px}
.modal-bg.open{display:flex}
.modal{background:var(--bg-alt);border-radius:16px;max-width:460px;width:100%;padding:28px;box-shadow:var(--shadow)}
.modal h3{font-size:19px}
.modal-close{float:right;background:none;border:0;font-size:20px;cursor:pointer;color:var(--ink-mute)}

/* ---------- Account page ---------- */
.acct-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media (max-width:800px){.acct-grid{grid-template-columns:1fr}}
table.hist{width:100%;border-collapse:collapse;font-size:14px}
table.hist th,table.hist td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line)}
table.hist th{color:var(--ink-mute);font-weight:600;font-size:12.5px;text-transform:uppercase;letter-spacing:.02em}

/* ---------- Legal ---------- */
.legal{max-width:760px;margin:0 auto;padding:60px 24px}
.legal h1{font-size:28px}
.legal h2{font-size:19px;margin-top:32px}
.legal p,.legal li{color:var(--ink-mute);font-size:15px}
@media (max-width:540px){
  .hero{padding:48px 0 30px}
  section{padding:52px 0}
  .hero-ctas .btn{width:100%}
  .trust-row{gap:10px;margin-top:24px}
  .card-pad{padding:15px}
  .dropzone{padding:34px 14px}
  .det-item{gap:7px;padding:10px 4px}
  .det-tag{display:none}
  #toast-host{left:14px;right:14px;bottom:14px}
  .toast{max-width:none}
  table.hist{display:block;overflow-x:auto}
}

/* Componentes añadidos por la fábrica */
.eyebrow{display:inline-block;color:var(--accent);font-weight:800;text-transform:uppercase;letter-spacing:.08em;font-size:.78rem;margin-bottom:12px}
.hero>.wrap{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(300px,.92fr);gap:52px;align-items:center}
.hero-copy h1{font-size:clamp(2.4rem,5vw,4.8rem);max-width:13ch}.hero-copy>p{font-size:1.15rem;color:var(--ink-mute);max-width:62ch}
.hero-actions,.tool-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:24px}.hero-note,.price-legal{color:var(--ink-mute);font-size:.9rem;margin-top:14px}
.tool-preview,.tool-panel{background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:28px}
.preview-input,.preview-output,.result-box{border:1px solid var(--line);border-radius:10px;padding:16px;margin:8px 0 18px;min-height:92px;background:var(--bg);color:var(--ink-mute)}
.section{padding:72px 0}.section.alt{background:var(--bg-alt)}.feature-grid,.price-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:28px}
.feature-card,.price-card{border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:var(--bg-alt)}.price{font-size:2rem;font-weight:800;margin:14px 0}.price small{font-size:.9rem;color:var(--ink-mute)}
.faq-wrap{max-width:820px}details{border-bottom:1px solid var(--line);padding:17px 0}summary{font-weight:700;cursor:pointer}details p{color:var(--ink-mute);margin-top:10px}
.site-footer{border-top:1px solid var(--line);padding:34px 0;background:var(--bg-alt)}.site-footer .wrap,.site-footer nav{display:flex;align-items:center;gap:18px;flex-wrap:wrap}.site-footer nav{margin-left:auto}
.tool-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:22px}textarea{width:100%;resize:vertical}.result-box{white-space:pre-wrap;word-break:break-word;min-height:300px;color:var(--ink)}
.legal-page{padding:60px 0}.legal-page .wrap{max-width:820px}.legal-page h2{margin-top:32px}
@media(max-width:800px){.hero>.wrap,.tool-layout{grid-template-columns:1fr}.feature-grid,.price-grid{grid-template-columns:1fr}.site-footer nav{margin-left:0;width:100%}}

/* Espacio documental ComparaObra */
:root{--accent:#c2410c;--accent-dark:color-mix(in srgb,#c2410c 78%,black);--accent-soft:color-mix(in srgb,#c2410c 10%,white)}
.brandmark{width:34px;height:34px;border-radius:10px;background:#c2410c;color:#fff;display:grid;place-items:center;font-weight:800}.doc-workspace{display:grid;gap:24px}.upload-panel{max-width:920px;margin:auto}.doc-drop{display:grid;gap:8px;text-align:center;padding:38px 22px;border:2px dashed var(--line-strong);border-radius:18px;background:var(--bg-alt);cursor:pointer}.doc-drop input{position:absolute;opacity:0;pointer-events:none}.doc-drop span,.safe-note{color:var(--ink-mute);font-size:.9rem}.file-list{display:grid;gap:7px;margin:14px 0}.file-list div{padding:9px 12px;border:1px solid var(--line);border-radius:9px}.progress-wrap>div,.report-head{display:flex;justify-content:space-between;gap:16px;align-items:center}.progress-track{display:block;height:8px;background:var(--line);border-radius:99px;overflow:hidden}.progress-track i{display:block;height:100%;width:0;background:var(--accent)}.report-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.report-card,.risk{padding:18px;border:1px solid var(--line);border-radius:14px;background:var(--bg-alt)}.report-card h3{text-transform:capitalize}.citation{margin-left:8px;border:0;border-radius:99px;padding:3px 8px;color:var(--accent-dark);background:var(--accent-soft);cursor:help}.risk{margin:10px 0;border-left:5px solid var(--warn)}@media(max-width:720px){.report-grid{grid-template-columns:1fr}}@media print{.appbar,.upload-panel,.report-head button{display:none!important}.report-grid{grid-template-columns:1fr}}