:root{
  --primary:#556a39;
  --primary-dark:#43542d;
  --accent:#b99b52;
  --bg:#f4f7f1;
  --bg-soft:#eef3e8;
  --dark:#162018;
  --muted:#66715d;
  --border:#dbe3d2;
  --danger:#b91c1c;
  --warning:#8a6d1f;
  --card:#ffffff;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,sans-serif;background:linear-gradient(135deg,#f4f7f1 0%,#ffffff 55%,#eef3eb 100%);color:var(--dark)}
a{transition:all .25s ease}
.flash{position:fixed;top:16px;right:16px;padding:14px 16px;border-radius:12px;z-index:9999;box-shadow:0 8px 24px rgba(0,0,0,.1)}
.flash-success{background:#dcfce7;color:#166534}.flash-error{background:#fee2e2;color:#991b1b}
.card{background:var(--card);border:1px solid var(--border);border-radius:24px;box-shadow:0 8px 24px rgba(0,0,0,.05);transition:transform .25s ease, box-shadow .25s ease}
.card:hover{box-shadow:0 16px 38px rgba(0,0,0,.08)}
.alert-box{padding:14px 16px;border-radius:14px;margin:0 0 18px}.alert-warning{background:#fff8db;color:var(--warning);border:1px solid #ecd98c}
.section-separator{border:none;border-top:1px solid var(--border);margin:24px 0}.subheading{margin:0 0 12px}.compact-box p{margin:6px 0}
input,textarea,select{width:100%;padding:12px 14px;border-radius:14px;border:1px solid #cbd5e1;margin-bottom:14px;background:#fff;transition:border-color .2s ease, box-shadow .2s ease}
input:focus,textarea:focus,select:focus{outline:none;border-color:#889b6e;box-shadow:0 0 0 4px rgba(85,106,57,.10)}
textarea{min-height:130px;resize:vertical}
label{display:block;font-weight:700;margin-bottom:8px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;text-decoration:none;padding:11px 16px;border-radius:14px;border:none;cursor:pointer;font-weight:700;transition:transform .2s ease, opacity .2s ease, box-shadow .2s ease}
.btn:hover{transform:translateY(-1px);box-shadow:0 8px 18px rgba(0,0,0,.08)}
.btn-primary{background:linear-gradient(90deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff}.btn-secondary{background:#fff;color:#0f172a;border:1px solid #cbd5e1}.btn-danger{background:var(--danger);color:#fff}.btn-block{width:100%}
.fade-in-up{animation:fadeUp .5s ease both}@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
.landing-shell{min-height:100vh;width:100%;display:flex;align-items:stretch}
.landing-left{width:60%;padding:42px 48px;display:flex;flex-direction:column;justify-content:center}
.landing-right{width:40%;padding:42px 36px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.5)}
.brand-box{display:flex;align-items:center;gap:18px;margin-bottom:24px}
.brand-logo{width:106px;height:106px;object-fit:contain;border-radius:22px;background:#fff;padding:8px;box-shadow:0 8px 24px rgba(0,0,0,.08)}
.brand-text{font-size:18px;color:#3b4a32;line-height:1.4;max-width:620px}
.hero-title{margin:0 0 16px;font-size:64px;line-height:1.03;font-weight:800;color:#172016;max-width:760px}
.hero-text{margin:0 0 32px;font-size:20px;line-height:1.7;color:#5f6d5a;max-width:780px}
.roles-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;max-width:980px}
.role-card{background:rgba(255,255,255,.94);border-radius:24px;padding:24px 22px;box-shadow:0 10px 28px rgba(0,0,0,.06);min-height:270px;transition:transform .25s ease, box-shadow .25s ease}
.role-card:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(0,0,0,.10)}
.role-icon{width:84px;height:84px;border-radius:22px;display:flex;align-items:center;justify-content:center;font-size:40px;margin-bottom:18px;background:#eef3e3;border:1px solid #d8e2cc}
.role-card h3{margin:0 0 14px;font-size:22px;line-height:1.2;color:#182018}.role-card p{margin:0;font-size:16px;line-height:1.65;color:#5d675b}
.login-card{width:100%;max-width:460px;background:#fff;border-radius:28px;padding:34px 32px;box-shadow:0 18px 45px rgba(0,0,0,.08)}
.login-card h2{margin:0 0 12px;font-size:28px;color:#1a2117}.login-card p{margin:0 0 24px;color:#677260;font-size:18px;line-height:1.5}.login-card form{display:flex;flex-direction:column;gap:14px}.login-card input{height:54px;margin:0}
.login-card button{height:54px;border:none;border-radius:14px;background:linear-gradient(90deg,#6f8b48 0%,#556a39 100%);color:#fff;font-size:17px;font-weight:700;cursor:pointer}.forgot-link{display:inline-block;margin-top:16px;color:#556a39;text-decoration:none;font-weight:600}.forgot-link:hover{text-decoration:underline}
.simple-auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.auth-card{max-width:560px;width:100%;padding:30px}
.app-layout{display:grid;grid-template-columns:280px 1fr;min-height:100vh}.sidebar{background:#17211a;color:#fff;padding:20px;display:flex;flex-direction:column;gap:10px}.sidebar-brand{display:flex;align-items:center;gap:12px;margin-bottom:20px}.sidebar-sub{color:#d0d7c8;font-size:13px}.logo-sm{width:26px;height:26px;object-fit:contain}
.user-box{background:#223027;padding:16px;border-radius:18px;margin-bottom:10px;line-height:1.6}.small-light{color:#cbd5e1;font-size:13px}.role-tag{display:inline-block;margin-top:8px;background:var(--accent);color:#fff;padding:4px 10px;border-radius:999px;font-size:12px}.temp-note{margin-top:8px;font-size:12px;color:#ffe7a9}
.nav-menu{display:flex;flex-direction:column;gap:10px}.nav-menu a{color:#e7ece3;text-decoration:none;padding:14px 16px;border-radius:16px}.nav-menu a:hover,.logout-link:hover{background:#fff;color:#0f172a}.logout-link{margin-top:auto;background:#e2e8f0;color:#0f172a}
.main{padding:28px}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:20px 0}.stat-card{padding:22px;display:flex;flex-direction:column;gap:10px}.stat-card strong{font-size:30px}
.panel-card{padding:24px;margin-bottom:18px}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:18px}.book-card{background:#fff;border:1px solid var(--border);border-radius:24px;overflow:hidden;box-shadow:0 2px 8px rgba(0,0,0,.04);transition:transform .25s ease, box-shadow .25s ease}.book-card:hover{transform:translateY(-4px)}.book-card img{width:100%;height:220px;object-fit:cover}.book-body{padding:18px;display:flex;flex-direction:column;gap:10px}.book-head{display:flex;justify-content:space-between;gap:10px;align-items:center}.badge{background:#e7ebdf;border-radius:999px;font-size:12px;padding:4px 10px;display:inline-block;color:#40502c}.header-row{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}.search-form,.row-actions{display:flex;gap:10px;flex-wrap:wrap}.reader-grid{display:grid;grid-template-columns:360px 1fr;gap:20px}.reader-cover{width:100%;height:320px;object-fit:cover;border-radius:20px;margin-bottom:16px}.reader-toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:16px;padding:16px;border-radius:18px;background:#f8fafc;border:1px solid var(--border)}.small-muted{color:var(--muted);font-size:13px}.pdf-frame{width:100%;min-height:720px;border:1px solid var(--border);border-radius:20px;background:#fff}.reader-text{margin-top:18px;padding:18px;border:1px solid var(--border);border-radius:18px;background:#fff}.table{width:100%;border-collapse:collapse}.table th,.table td{border-bottom:1px solid var(--border);padding:12px;text-align:left;vertical-align:top}.form-panel{max-width:980px}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.thumb{width:80px;height:110px;object-fit:cover;border-radius:10px;border:1px solid #cbd5e1}
code{background:#f2f4ed;padding:2px 6px;border-radius:6px}
@media (max-width:1200px){.landing-shell{flex-direction:column}.landing-left,.landing-right{width:100%}.landing-left{padding:36px 28px 20px}.landing-right{padding:10px 28px 36px;background:transparent}.hero-title{font-size:52px;max-width:100%}.hero-text{max-width:100%}.roles-grid{grid-template-columns:repeat(2,minmax(0,1fr));max-width:100%}.login-card{max-width:100%}}
@media (max-width:980px){.app-layout,.reader-grid,.stats-grid,.grid-2{grid-template-columns:1fr}.main{padding:16px}.hero-title{font-size:42px}.roles-grid{grid-template-columns:1fr}.brand-box{flex-direction:column;align-items:flex-start}.brand-logo{width:88px;height:88px}}


/* Catálogo uniforme de libros */
.catalog-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:22px;align-items:stretch}
.catalog-card{background:#fff;border:1px solid var(--border);border-radius:24px;overflow:hidden;box-shadow:0 8px 24px rgba(0,0,0,.05);display:flex;flex-direction:column;height:100%;min-height:520px;transition:transform .25s ease, box-shadow .25s ease}
.catalog-card:hover{transform:translateY(-4px);box-shadow:0 16px 36px rgba(0,0,0,.09)}
.catalog-cover-wrap{padding:16px 16px 0}
.catalog-cover{width:100%;height:270px;object-fit:cover;border-radius:18px;background:#f4f7f1;display:block}
.catalog-body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1}
.catalog-title{margin:0;font-size:25px;line-height:1.2;color:var(--dark);min-height:60px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.catalog-meta{color:#48533f;font-size:18px;line-height:1.45;min-height:52px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.catalog-year{color:var(--muted);font-weight:700;font-size:16px;margin-bottom:8px;min-height:24px}
.catalog-actions{margin-top:auto;display:flex;gap:10px;flex-wrap:wrap}
.catalog-actions .btn{min-width:110px}
@media (max-width:980px){.catalog-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr))}.catalog-cover{height:240px}.catalog-card{min-height:480px}.catalog-title{font-size:22px}.catalog-meta{font-size:16px}}
@media (max-width:640px){.catalog-grid{grid-template-columns:1fr}.catalog-card{min-height:auto}.catalog-cover{height:260px}.catalog-title,.catalog-meta{min-height:auto}}


/* Catálogo premium tipo biblioteca digital */
.premium-catalog-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:26px}
.premium-catalog-card{position:relative;min-height:0;border-radius:26px;background:linear-gradient(180deg,#ffffff 0%,#fbfcfa 100%);overflow:hidden}
.premium-catalog-card:hover{transform:translateY(-8px) scale(1.01);box-shadow:0 22px 48px rgba(0,0,0,.12)}
.catalog-cover-link{text-decoration:none;color:inherit;display:block}
.premium-cover-wrap{padding:18px 18px 0;position:relative}
.premium-cover-wrap::after{content:"";position:absolute;left:18px;right:18px;bottom:0;height:44%;background:linear-gradient(180deg,rgba(0,0,0,0) 0%,rgba(17,24,39,.12) 100%);border-radius:0 0 18px 18px;pointer-events:none}
.catalog-overlay{position:absolute;top:30px;left:30px;right:30px;display:flex;justify-content:flex-start;pointer-events:none}
.catalog-chip{display:inline-flex;align-items:center;padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.92);backdrop-filter:blur(6px);font-size:13px;font-weight:700;color:#30411f;box-shadow:0 8px 20px rgba(0,0,0,.08)}
.premium-catalog-body{padding:18px 20px 20px;gap:10px}
.premium-catalog-title{font-size:22px;line-height:1.28;min-height:0;display:block;overflow:visible;word-break:break-word;display:block}
.premium-catalog-meta{font-size:16px;min-height:0;color:#516048;display:block;overflow:visible;word-break:break-word}
.premium-catalog-year{display:inline-flex;align-items:center;justify-content:center;width:max-content;padding:7px 12px;border-radius:999px;background:#eef3e3;color:#42562d;font-size:14px;margin-bottom:8px}
.premium-catalog-actions{gap:10px}
.premium-catalog-actions .btn{flex:1 1 auto;min-width:0;justify-content:center}
@media (max-width:980px){.premium-catalog-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px}.premium-catalog-title{font-size:20px}}
@media (max-width:640px){.premium-catalog-grid{grid-template-columns:1fr}.premium-cover-wrap{padding:16px 16px 0}.catalog-overlay{top:26px;left:26px;right:26px}}


/* Modo oscuro */
:root[data-theme="dark"]{
  --primary:#8da96d;
  --primary-dark:#6c874f;
  --accent:#d3b56b;
  --bg:#0f1411;
  --bg-soft:#17201a;
  --dark:#eef6ea;
  --muted:#b2c1b0;
  --border:#2d3a31;
  --card:#182119;
  --danger:#ef4444;
  --warning:#d6b455;
}
:root[data-theme="dark"] body{background:linear-gradient(135deg,#0f1411 0%,#151d17 55%,#101612 100%);color:var(--dark)}
:root[data-theme="dark"] .card,
:root[data-theme="dark"] .login-card,
:root[data-theme="dark"] .role-card,
:root[data-theme="dark"] .book-card,
:root[data-theme="dark"] .catalog-card,
:root[data-theme="dark"] .premium-catalog-card,
:root[data-theme="dark"] .panel-card,
:root[data-theme="dark"] .stat-card,
:root[data-theme="dark"] .reader-text,
:root[data-theme="dark"] .reader-toolbar,
:root[data-theme="dark"] .auth-card,
:root[data-theme="dark"] .form-panel,
:root[data-theme="dark"] .table-wrap{background:var(--card);border-color:var(--border);box-shadow:0 16px 36px rgba(0,0,0,.28)}
:root[data-theme="dark"] .landing-right{background:rgba(24,33,25,.72)}
:root[data-theme="dark"] .brand-logo{background:#121814}
:root[data-theme="dark"] .brand-text,
:root[data-theme="dark"] .hero-text,
:root[data-theme="dark"] .role-card p,
:root[data-theme="dark"] .login-card p,
:root[data-theme="dark"] .small-muted,
:root[data-theme="dark"] .catalog-meta,
:root[data-theme="dark"] .catalog-year,
:root[data-theme="dark"] .premium-catalog-meta,
:root[data-theme="dark"] .table td,
:root[data-theme="dark"] .table th,
:root[data-theme="dark"] p{color:var(--muted)}
:root[data-theme="dark"] .hero-title,
:root[data-theme="dark"] .role-card h3,
:root[data-theme="dark"] .login-card h2,
:root[data-theme="dark"] .catalog-title,
:root[data-theme="dark"] .premium-catalog-title,
:root[data-theme="dark"] h1,
:root[data-theme="dark"] h2,
:root[data-theme="dark"] h3,
:root[data-theme="dark"] strong,
:root[data-theme="dark"] .book-title{color:var(--dark)}
:root[data-theme="dark"] input,
:root[data-theme="dark"] textarea,
:root[data-theme="dark"] select{background:#111713;color:var(--dark);border-color:var(--border)}
:root[data-theme="dark"] .btn-secondary{background:#111713;color:var(--dark);border-color:var(--border)}
:root[data-theme="dark"] .badge,
:root[data-theme="dark"] .premium-catalog-year,
:root[data-theme="dark"] .role-icon{background:#202b21;color:var(--dark);border-color:var(--border)}
:root[data-theme="dark"] .catalog-chip{background:rgba(24,33,25,.88);color:var(--dark)}
:root[data-theme="dark"] code{background:#101612;color:#d7e8d4}
:root[data-theme="dark"] .table th,:root[data-theme="dark"] .table td{border-bottom-color:var(--border)}

.theme-toggle{position:fixed;top:16px;right:16px;z-index:10000;border:none;border-radius:999px;padding:10px 14px;display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.94);color:#172016;box-shadow:0 12px 32px rgba(0,0,0,.12);cursor:pointer;font-weight:700;backdrop-filter:blur(10px)}
.theme-toggle:hover{transform:translateY(-1px)}
.theme-toggle-icon{font-size:18px;line-height:1}
:root[data-theme="dark"] .theme-toggle{background:rgba(24,33,25,.94);color:#eef6ea}

.logo-lg{width:54px;height:54px;object-fit:contain;border-radius:14px;background:#fff;padding:6px;box-shadow:0 8px 18px rgba(0,0,0,.10)}
:root[data-theme="dark"] .logo-lg{background:#101612}
.logo-sm{width:30px;height:30px}

.library-landing .roles-grid-library{max-width:1100px}
.login-form-grid{display:flex;flex-direction:column;gap:14px}
.login-form-grid input{margin:0}

.sidebar{position:sticky;top:0;min-height:100vh}
.nav-menu a{display:flex;align-items:center;gap:10px;font-weight:700}
.logout-link{background:#dc2626;color:#fff !important;justify-content:center;margin-top:18px;box-shadow:0 8px 18px rgba(185,28,28,.25)}
.logout-link:hover{background:#b91c1c !important;color:#fff !important}

.main{max-width:100%;overflow-x:hidden}
.header-row h1{margin:0 0 6px;font-size:clamp(28px,4vw,42px)}
.search-form input{min-width:260px}
.reader-grid{align-items:start}
.table-wrap{overflow:auto;border-radius:18px}
.table{min-width:720px}

@media (max-width:1100px){
  .landing-left{padding:34px 24px 16px}
  .landing-right{padding:16px 24px 34px}
  .hero-title{font-size:48px}
  .hero-text{font-size:18px}
  .roles-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .app-layout{grid-template-columns:1fr}
  .sidebar{position:relative;min-height:auto;border-bottom:1px solid var(--border)}
  .nav-menu{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
  .logout-link{grid-column:1/-1}
}
@media (max-width:820px){
  .theme-toggle{top:12px;right:12px;padding:9px 12px}
  .theme-toggle-text{display:none}
  .landing-shell{flex-direction:column}
  .landing-left,.landing-right{width:100%}
  .brand-box{gap:14px}
  .brand-logo{width:88px;height:88px}
  .hero-title{font-size:40px;line-height:1.08}
  .hero-text{font-size:17px;line-height:1.6}
  .roles-grid{grid-template-columns:1fr}
  .role-card{min-height:auto}
  .main{padding:14px}
  .search-form{width:100%}
  .search-form input,.search-form .btn{width:100%}
  .card-grid,.catalog-grid,.premium-catalog-grid,.stats-grid,.grid-2,.reader-grid{grid-template-columns:1fr}
  .nav-menu{grid-template-columns:repeat(2,minmax(0,1fr))}
  .book-card img,.catalog-cover{height:240px}
  .login-card{padding:26px 20px;border-radius:22px}
}
@media (max-width:560px){
  .landing-left,.landing-right{padding-left:16px;padding-right:16px}
  .brand-box{flex-direction:column;align-items:flex-start}
  .brand-text{font-size:15px}
  .hero-title{font-size:32px}
  .hero-text{font-size:16px}
  .sidebar{padding:16px}
  .sidebar-brand{align-items:flex-start}
  .nav-menu{grid-template-columns:1fr}
  .user-box{padding:14px}
  .catalog-actions,.premium-catalog-actions,.row-actions{flex-direction:column}
  .catalog-actions .btn,.premium-catalog-actions .btn,.row-actions .btn{width:100%}
  .reader-toolbar{flex-direction:column;align-items:stretch}
  .table{min-width:620px}
}


/* Ajustes v3: edición de usuarios y catálogo por defecto */
.nav-menu a.active-link{background:rgba(255,255,255,.18);color:#fff;border-color:transparent}
:root[data-theme="dark"] .nav-menu a.active-link{background:rgba(255,255,255,.08);color:var(--dark)}


/* Optimización de visor PDF */
.reader-quick-actions{display:flex;flex-direction:column;gap:10px;margin-top:14px}
.pdf-placeholder{min-height:420px;border:1px dashed var(--border);border-radius:22px;background:linear-gradient(180deg,#fbfcfa 0%,#f4f7f1 100%);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:32px}
.pdf-placeholder-icon{font-size:52px;line-height:1;margin-bottom:12px}
.pdf-placeholder h3{margin:0 0 10px;font-size:28px;color:var(--dark)}
.pdf-placeholder p{max-width:560px;margin:0 0 18px;color:var(--muted);line-height:1.7}
.reader-inline-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}
.pdf-frame{content-visibility:auto;contain-intrinsic-size:720px}
@media (max-width:560px){.reader-inline-actions{flex-direction:column;width:100%}.reader-inline-actions .btn{width:100%}.pdf-placeholder{min-height:320px;padding:22px}}


/* Branding institucional completo */
.brand-logo-premium{
  width:150px;
  height:150px;
  padding:12px;
  border-radius:28px;
  border:1px solid rgba(185,155,82,.22);
  box-shadow:0 20px 42px rgba(85,106,57,.12), 0 0 0 8px rgba(255,255,255,.58);
}
.hero-brand-strip{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin:0 0 28px;
}
.hero-brand-strip span{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 16px;
  border-radius:999px;
  background:rgba(255,255,255,.86);
  border:1px solid rgba(185,155,82,.22);
  color:#445535;
  font-weight:700;
  box-shadow:0 8px 22px rgba(0,0,0,.05);
}
.institutional-sidebar{
  background:linear-gradient(180deg,#17211a 0%, #1e2b21 52%, #152017 100%);
  border-right:1px solid rgba(255,255,255,.06);
}
.sidebar-brand-premium{
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  gap:14px;
  padding:10px 6px 18px;
  margin-bottom:8px;
}
.sidebar-logo-wrap{
  width:122px;
  height:122px;
  border-radius:30px;
  background:linear-gradient(180deg,rgba(255,255,255,.96),rgba(242,246,238,.92));
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 18px 34px rgba(0,0,0,.22), inset 0 1px 0 rgba(255,255,255,.9);
}
.logo-emphasis{
  width:96px;
  height:96px;
  padding:0;
  background:transparent;
  box-shadow:none;
}
.sidebar-brand-copy strong{
  display:block;
  font-size:24px;
  line-height:1.1;
  color:#fff;
  margin-bottom:6px;
}
.brand-kicker{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:6px 12px;
  border-radius:999px;
  background:rgba(185,155,82,.16);
  color:#f1dca4;
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
  text-transform:uppercase;
  margin-bottom:10px;
}
.sidebar-sub{
  font-size:13px;
  line-height:1.5;
  color:#d9e1d3;
}
.institution-badge{
  background:linear-gradient(135deg,rgba(185,155,82,.18),rgba(85,106,57,.22));
  border:1px solid rgba(255,255,255,.08);
  border-radius:22px;
  padding:14px 16px;
  margin:4px 0 16px;
  text-align:center;
  box-shadow:0 12px 26px rgba(0,0,0,.16);
}
.institution-badge-line{
  display:block;
  color:#e8eee1;
  font-size:13px;
  line-height:1.5;
}
.institution-badge-strong{
  color:#f0dca4;
  font-weight:700;
  margin-top:2px;
}
.user-box{
  background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.04));
  border:1px solid rgba(255,255,255,.06);
}
.nav-menu a{
  border:1px solid transparent;
}
.nav-menu a:hover,.nav-menu a.active-link{
  background:rgba(255,255,255,.10);
  border-color:rgba(255,255,255,.08);
  color:#fff;
}
.logout-link{
  border:none;
  font-size:15px;
  box-shadow:0 12px 24px rgba(185,28,28,.28);
}
.theme-toggle{font-weight:800}
:root[data-theme="dark"] .brand-logo-premium{
  background:#121814;
  box-shadow:0 20px 42px rgba(0,0,0,.35), 0 0 0 8px rgba(16,24,18,.52);
}
:root[data-theme="dark"] .hero-brand-strip span{
  background:rgba(24,33,25,.92);
  color:#dde9d9;
  border-color:rgba(255,255,255,.08);
}
:root[data-theme="dark"] .sidebar-logo-wrap{
  background:linear-gradient(180deg,#1b241d,#121814);
}
@media (max-width:1100px){
  .sidebar-brand-premium{flex-direction:row;align-items:center;text-align:left;padding:6px 0 14px}
  .sidebar-logo-wrap{width:98px;height:98px;border-radius:24px}
  .logo-emphasis{width:76px;height:76px}
  .sidebar-brand-copy strong{font-size:22px}
}
@media (max-width:820px){
  .brand-logo-premium{width:120px;height:120px}
  .hero-brand-strip span{font-size:13px;padding:9px 14px}
}
@media (max-width:560px){
  .brand-logo-premium{width:102px;height:102px;padding:8px}
  .sidebar-brand-premium{flex-direction:column;text-align:center}
  .sidebar-logo-wrap{width:92px;height:92px}
  .logo-emphasis{width:68px;height:68px}
  .sidebar-brand-copy strong{font-size:20px}
  .institution-badge{padding:12px 14px}
}


/* Catalog search + mobile PDF optimizations */
.catalog-toolbar{width:100%;margin:0 0 28px;display:flex;justify-content:center}
.catalog-search-form{width:100%}
.catalog-search-center{width:100%;max-width:980px;background:#fff;border:1px solid #e5e7eb;border-radius:24px;padding:28px;box-shadow:0 10px 24px rgba(0,0,0,.05);display:flex;flex-direction:column;gap:18px;margin:0 auto}
.catalog-search-input{width:100%;height:58px;border:1px solid #d1d5db;border-radius:16px;padding:0 18px;font-size:16px;background:#fff;outline:none}
.catalog-search-input:focus,.catalog-filter-select:focus{border-color:#6b7f45;box-shadow:0 0 0 3px rgba(107,127,69,.12)}
.catalog-filter-select{width:100%;height:58px;border:1px solid #d1d5db;border-radius:16px;padding:0 18px;font-size:16px;background:#fff;outline:none}
.catalog-search-btn{height:52px;padding:0 18px;border:none;border-radius:12px;background:#667c3e;color:#fff;font-weight:700;cursor:pointer}
.catalog-clear-btn{height:52px;padding:0 18px;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;background:#f3f4f6;color:#111827;text-decoration:none;font-weight:600;border:1px solid #d1d5db}
@media (max-width:768px){.catalog-search-center{padding:18px}.catalog-search-actions{flex-direction:column;width:100%}.catalog-search-input,.catalog-filter-select,.catalog-search-btn,.catalog-show-all-btn,.catalog-clear-btn{width:100%;min-width:100%}}
:root[data-theme="dark"] .catalog-search-center{background:#0f172a;border-color:#334155;box-shadow:none}
:root[data-theme="dark"] .catalog-search-input,:root[data-theme="dark"] .catalog-filter-select{background:#111827;color:#e5e7eb;border-color:#334155}
:root[data-theme="dark"] .catalog-clear-btn{background:#1f2937;color:#f9fafb;border-color:#374151}


.catalog-empty-state{max-width:980px;margin:28px auto 0;background:#fff;border:1px dashed #cbd5e1;border-radius:20px;padding:36px 24px;text-align:center;box-shadow:0 8px 24px rgba(0,0,0,.04)}
.catalog-empty-state h3{margin:0 0 10px;font-size:24px;color:#111827}
.catalog-empty-state p{margin:0;font-size:16px;color:#6b7280;line-height:1.6}


/* Visor PDF rápido y móvil */
  .reader-toolbar{flex-direction:column;align-items:stretch}
  .table{min-width:620px}
}


/* Ajustes v3: edición de usuarios y catálogo por defecto */
.nav-menu a.active-link{background:rgba(255,255,255,.18);color:#fff;border-color:transparent}
:root[data-theme="dark"] .nav-menu a.active-link{background:rgba(255,255,255,.08);color:var(--dark)}


.catalog-toolbar{width:100%;margin:0 0 28px;display:flex;justify-content:center}
.catalog-search-form{width:100%}
.catalog-search-center{width:100%;max-width:980px;display:flex;justify-content:center;align-items:center;gap:12px;flex-wrap:wrap;background:#fff;border:1px solid #e5e7eb;border-radius:18px;padding:18px;box-shadow:0 8px 24px rgba(0,0,0,.06)}
.catalog-search-input{flex:1 1 420px;min-width:260px;height:52px;border:1px solid #d1d5db;border-radius:12px;padding:0 16px;font-size:16px;outline:none}
.catalog-search-input:focus,.catalog-filter-select:focus{border-color:#6b7f45;box-shadow:0 0 0 3px rgba(107,127,69,.12)}
.catalog-filter-select{height:52px;min-width:170px;border:1px solid #d1d5db;border-radius:12px;padding:0 14px;font-size:15px;background:#fff;outline:none}
.catalog-search-btn{height:52px;padding:0 18px;border:none;border-radius:12px;background:#667c3e;color:#fff;font-weight:700;cursor:pointer}
.catalog-clear-btn{height:52px;padding:0 18px;display:inline-flex;align-items:center;justify-content:center;border-radius:12px;background:#f3f4f6;color:#111827;text-decoration:none;font-weight:600;border:1px solid #d1d5db}
@media (max-width:768px){.catalog-search-center{flex-direction:column;align-items:stretch}.catalog-search-input,.catalog-filter-select,.catalog-search-btn,.catalog-clear-btn{width:100%}}
:root[data-theme="dark"] .catalog-search-center{background:#0f172a;border-color:#334155;box-shadow:none}
:root[data-theme="dark"] .catalog-search-input,:root[data-theme="dark"] .catalog-filter-select{background:#111827;color:#e5e7eb;border-color:#334155}
:root[data-theme="dark"] .catalog-clear-btn{background:#1f2937;color:#f9fafb;border-color:#374151}


.pdf-frame{display:none}
.pdf-preview-box{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;min-height:320px;border:1px dashed var(--border);border-radius:20px;background:linear-gradient(180deg,#fafcf8 0%,#f3f7ee 100%);padding:32px 24px}.pdf-preview-icon{font-size:52px;line-height:1;margin-bottom:14px}.pdf-preview-box h3{margin:0 0 10px;font-size:24px;color:#22301a}.pdf-preview-box p{margin:0 0 10px;max-width:680px}.btn[disabled]{opacity:.7;cursor:default}


.site-legal-footer{margin:24px auto 12px;max-width:1200px;padding:14px 18px;border:1px solid #d9e0cf;border-radius:16px;background:#f6f8f2;color:#334155;font-size:14px;line-height:1.5}
.legal-panel{margin-top:14px;padding:14px 16px;border-radius:16px;background:#f8fafc;border:1px solid #dbe4d2}
.audit-legal-banner{margin:0 0 18px;padding:14px 16px;border-radius:16px;background:linear-gradient(180deg,#f4f7ed,#eef4e4);border:1px solid #cdd8b9;color:#243119;line-height:1.5}
.legal-mini-stack{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0 2px}.legal-mini-stack-reader{margin:14px 0}
.catalog-chip-legal{background:#eef4e4;color:#334b18;border:1px solid #c8d4b5}
.catalog-chip-scope{background:#eef2ff;color:#3730a3;border:1px solid #c7d2fe}
.btn-disabled{pointer-events:none;opacity:.92;text-align:center}
.table-responsive{overflow:auto}
:root[data-theme="dark"] .site-legal-footer{background:#111827;border-color:#374151;color:#e5e7eb}
:root[data-theme="dark"] .legal-panel{background:#0f172a;border-color:#334155}
:root[data-theme="dark"] .audit-legal-banner{background:#16211a;border-color:#314030;color:#e6f0df}
:root[data-theme="dark"] .catalog-chip-legal{background:#1d2a1a;border-color:#3e533a;color:#d7e7c7}
:root[data-theme="dark"] .catalog-chip-scope{background:#172036;border-color:#334155;color:#dbeafe}


/* search-compact-override-file */
input[type="text"][placeholder*="Buscar por título"],
input[type="text"][placeholder*="Buscar por título"],
input[type="search"][placeholder*="Buscar por título"],
input[type="search"][placeholder*="Buscar por título"],
textarea[placeholder*="Buscar por título"],
textarea[placeholder*="Buscar por título"],
input[name="q"], input[id="q"], textarea[name="q"], textarea[id="q"]{
  height:56px !important;
  min-height:56px !important;
  max-height:56px !important;
  padding:0 20px !important;
  line-height:56px !important;
  font-size:16px !important;
  border-radius:16px !important;
  resize:none !important;
  overflow:hidden !important;
  box-sizing:border-box !important;
}
.search-form,.search-toolbar,.catalog-toolbar,.filters-bar{align-items:center !important;}


.search-helper-text{
  margin:10px 4px 0;
  color:#66735c;
  font-size:14px;
}


.pdf-loader-wrap{
  display:block;
  margin: 0 0 14px 0;
  padding: 14px 16px;
  background: #f3f6ed;
  border: 1px solid #d9e2cf;
  border-radius: 14px;
  box-shadow: 0 6px 18px rgba(0,0,0,.06);
}
.pdf-loader-label{
  font-size: 14px;
  color: #516143;
  margin-bottom: 8px;
}
.pdf-loader-bar{
  width: 100%;
  height: 10px;
  background: #dde6d2;
  border-radius: 999px;
  overflow: hidden;
}
.pdf-loader-bar span{
  display: block;
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, #6f8340, #9aae63);
  transition: width .25s ease;
}