:root{
	/* Paleta: Azul (primário) e Amarelo (destaque) */
	--bg:#f5f7fb;
	--surface:#ffffff;
	--muted:#6b7280;
	--accent:#0b5fa5;   /* azul primário (header, elementos neutros) */
	--accent-2:#f5f10b; /* amarelo destaque (CTAs) */
	--success:#16a34a;
	--danger:#ef4444;
	--radius:8px;
}

/* Reset/base */
*{box-sizing:border-box}
html,body{height:100%}
body{font-family:Segoe UI, Tahoma, Geneva, Verdana, sans-serif;margin:0;background:var(--bg);color:#111;line-height:1.45}
.container{max-width:1100px;margin:5px auto;padding:0 16px}

/* Header / Nav */
header.site-header{
  background:var(--accent);
  color:#fff;
  position:fixed;
  border-bottom:1px solid var(--accent-2);
  top:0;
  left:0;
  right:0;
  z-index:100;
  backdrop-filter:blur(8px);
  background:rgba(11,95,165,0.95);
}
.site-header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px;
}
.brand{
  color:#fff;
  text-decoration:none;
  font-weight:600;
  font-size:1.25rem;
}
.nav-toggle{
  display:none;
  background:transparent;
  border:0;
  color:#fff;
  font-size:1.25rem;
}
.site-nav ul{
  list-style:none;
  margin:0;
  padding:0;
  display:flex;
  gap:24px;
  align-items:center;
}
.site-nav a{
  color:#fff;
  text-decoration:none;
  padding:8px 12px;
  border-radius:6px;
  opacity:0.9;
  transition:opacity 0.15s ease;
}
.site-nav a:hover{
  opacity:1;
  background:rgba(255,255,255,0.1);
}
.site-nav .auth-links{
  margin-left:24px;
  padding-left:24px;
  border-left:1px solid rgba(255,255,255,0.2);
}
.site-nav .btn-light{
  padding:8px 16px;
}

/* Logo sizing and alignment for header */
.site-header .logo{
  display:flex;
  align-items:center;
  gap:8px;
}

.logo-display{
  display:none;
}
.site-header .logo .site-logo{
  width:60px;
  height:60px;
  display:block;
  object-fit:contain;
  border-radius:50%;
  border:2px solid #fff;
}

.tema-slogan{
  display:flex;
  flex-direction:column;

}
.slogan-heading{
  font-size:1rem;
  margin:0;
  color:#fff;
}
.slogan-text{
  font-size:0.5rem;
  color:rgba(255,255,255,0.85);
  margin-top:2px;
}

@media (max-width:768px){
  .site-header .logo .site-logo{width:60px;height:60px}
}

/* Ensure nav-toggle appears on smaller viewports and hide the top nav to use the mobile pattern */
@media (max-width: 1024px) {
  .nav-toggle { display: inline-flex; align-items:center; justify-content:center; padding:8px 10px; background:transparent; color:#fff; border-radius:6px; }
  .site-nav { display: none !important; }
  .site-nav.mobile-open { display: block !important; position:fixed; top:56px; right:0; width:280px; max-width:85%; height:calc(100vh - 56px); background:var(--accent); box-shadow:0 20px 40px rgba(0,0,0,0.12); padding:16px; z-index:60; overflow:auto; }
  .site-nav.mobile-open ul { display:block; }
  .site-nav.mobile-open a { display:block; padding: 8px; color:var(--surface); }
}
.smooth-scroll{
  scroll-behavior:smooth;
}

/* Background logo behind the blue area for the registration page */
body.auth-page{
  position:relative;
  overflow-x:hidden;
}
body.auth-page::before{
  content:'';
  position:fixed;
  inset:0;
  background-image: url('/assets/img/LOGO_ULA-01.webp');
  background-repeat: no-repeat;
  background-position: right 10%;
  background-size: 50%;
  opacity: 0.05;
  z-index: 0;
  pointer-events: none;
}
.auth-container{position:relative;z-index:1}

/* Layout */
/* Landing page */
.hero-section{
  background:var(--accent);
  color:#fff;
  margin-top:-28px;
  position:relative;
  overflow:hidden;
  min-height:600px;
  display:flex;
  align-items:center;
}
.hero-section::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  right:0;
  bottom:0;
  background:linear-gradient(90deg, rgba(11,95,165,0.95) 0%, rgba(11,95,165,0.8) 50%, rgba(30,64,175,0.4) 100%);
  z-index:1;
}
.hero-section::after{
  content:'';
  position:absolute;
  bottom:-50px;
  left:0;
  right:0;
  height:100px;
  background:var(--bg);
  transform:skewY(-3deg);
  z-index:2;
}
.hero-section .container{
  position:relative;
  z-index:3;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:32px;
  align-items:center;
}
.hero-content{
  text-align:left;
  grid-column:1;
  max-width:540px;
}
.hero-section h1{
  font-size:2.8rem;
  margin:0 0 16px;
  line-height:1.2;
  text-shadow:0 2px 4px rgba(0,0,0,0.1);
}
.hero-section p{
  font-size:1.25rem;
  margin:0 0 32px;
  opacity:0.9;
}
.hero-image{
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  object-fit:cover;
  z-index:0;
}

@media (max-width:768px){
  .hero-section{
    min-height:500px;
  }
  .hero-section .container{
    grid-template-columns:1fr;
    padding:48px 16px;
  }
  .hero-content{
    grid-column:1;
    text-align:center;
    margin-top: 6rem;
  }
  .hero-section::before{
    background:linear-gradient(0deg, rgba(11,95,165,0.9) 0%, rgba(11,95,165,0.8) 100%);
  }
  .hero-section h1{
    font-size:2.2rem;
  }
}
.features-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(280px, 1fr));
  gap:24px;
  margin:48px 0;
}
.feature-card{
  background:var(--surface);
  border-radius:var(--radius);
  padding:24px;
  text-align:center;
  transition:transform 0.15s ease;
}
.feature-card:hover{
  transform:translateY(-2px);
}
.feature-icon{
  width:48px;
  height:48px;
  background:var(--accent);
  color:#fff;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  margin:0 auto 16px;
  font-size:1.5rem;
}
.feature-card h3{
  color:var(--accent);
  margin:0 0 8px;
}
.cta-section{
  background:linear-gradient(135deg, var(--accent-2) 0%, #fb923c 100%);
  padding:64px 0;
  text-align:center;
  margin:48px 0;
  color:#fff;
  position:relative;
}
.cta-section .btn-primary{
  font-size:1.1rem;
  padding:12px 24px;
  background:var(--accent);
}
.cta-section::before{
  content:'';
  position:absolute;
  top:-50px;
  left:0;
  right:0;
  height:100px;
  background:var(--accent-2);
  transform:skewY(3deg);
}

.info-section{
  padding:80px 0;
  position:relative;
}
.info-section.bg-accent{
  background:var(--accent);
  color:#fff;
  margin:64px 0;
}
.info-section.bg-accent::before,
.info-section.bg-accent::after{
  content:'';
  position:absolute;
  left:0;
  right:0;
  height:80px;
  background:var(--bg);
}
.info-section.bg-accent::before{
  top:-40px;
  transform:skewY(2deg);
}
.info-section.bg-accent::after{
  bottom:-40px;
  transform:skewY(-2deg);
}

.info-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:48px;
  align-items:center;
}
.info-content{
  padding:20px;
}
.info-content h2{
  font-size:2rem;
  margin:0 0 24px;
}
.info-content p{
  font-size:1.1rem;
  line-height:1.6;
  margin:0 0 24px;
}
.info-image{
  border-radius:var(--radius);
  box-shadow:0 4px 24px rgba(0,0,0,0.12);
  max-width:100%;
  height:auto;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(200px, 1fr));
  gap:24px;
  margin:48px 0;
  text-align:center;
}
.stat-card{
  background:rgba(255,255,255,0.1);
  padding:24px;
  border-radius:var(--radius);
}
.stat-number{
  font-size:2.5rem;
  font-weight:bold;
  margin:0 0 8px;
}
.stat-label{
  font-size:1.1rem;
  opacity:0.9;
}

@media (max-width:768px){
  .info-grid{
    grid-template-columns:1fr;
    gap:32px;
  }
  .info-content{
    text-align:center;
  }
  .info-section.reversed .info-grid{
    flex-direction:column-reverse;
  }
}

.dashboard-page .stats ul{display:flex;gap:16px;flex-wrap:wrap;padding:0;list-style:none}
.dashboard-page .stats li{background:var(--surface);padding:12px 16px;border-radius:var(--radius);box-shadow:0 1px 4px rgba(16,24,40,0.04)}
.dashboard-card{background:var(--surface);border-radius:var(--radius);padding:16px;box-shadow:0 1px 6px rgba(16,24,40,0.06)}

/* Toast notifications */
#toastContainer{
  position:fixed;
  right:1rem;
  bottom:1rem;
  z-index:9999;
  display:flex;
  flex-direction:column;
  align-items:flex-end;
  gap:8px;
}
.toast-item{
  min-width:220px;
  background:var(--surface);
  box-shadow:0 6px 18px rgba(0,0,0,0.08);
  border-radius:8px;
  padding:10px 12px;
  display:flex;
  align-items:center;
  gap:10px;
  color:#111;
  font-size:14px;
  overflow:hidden;
}
.toast-item.toast-success{ border-left:4px solid var(--success); }
.toast-item.toast-error{ border-left:4px solid var(--danger); }
.toast-item.toast-info{ border-left:4px solid var(--accent); }
.toast-item .toast-undo{
  margin-left:8px;
  padding:6px 8px;
  border-radius:6px;
  background:#f3f4f6;
  border:none;
  cursor:pointer;
}
@media (max-width:420px){
  #toastContainer{ right:0.5rem; left:0.5rem; }
  .toast-item{ width:100%; box-sizing:border-box; }
}

/* Forms */

/* Responsive dashboard and sidebar behavior */
@media (max-width: 1024px) {
  /* collapse wide fixed main margin used on desktop */
  main.ml-56 { margin-left: 0 !important; }
  /* For pages using the fixed #sidebar or .dashboard-sidebar, hide by default on mobile */
  #sidebar, .dashboard-sidebar { transform: translateX(-110%); transition: transform .25s ease; will-change: transform; }
  /* When mobile-open present, show it */
  #sidebar.mobile-open, .dashboard-sidebar.mobile-open { transform: translateX(0); }
  /* tiny overlay when sidebar is open (created dynamically) */
  .sidebar-overlay { position:fixed; inset:0; background:rgba(0,0,0,0.35); z-index:30; display:block; }
}

@media (min-width: 1025px) {
  /* ensure main margin is maintained on large screens */
  main.ml-56 { margin-left: 14rem; }
}
.form-group{margin-bottom:14px}
.form-group label{display:block;margin-bottom:6px;color:var(--muted);font-size:0.95rem}
.form-group input[type="text"],
.form-group input[type="tel"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="date"],
.form-group input[type="search"],
.form-group select{
  width:100%;
  padding:12px 14px; /* increased for better tap targets */
  min-height:44px; /* consistent control height */
  border:1px solid #e6e9ef;
  border-radius:8px;
  background:#fff;
  font-size:0.97rem;
  line-height:1.2;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.28s ease, opacity 0.28s ease;
}
.form-group input:focus,
.form-group select:focus{
    outline:none;
    border-color:var(--accent);
    box-shadow:0 0 0 3px rgba(11,95,165,0.1);
}
.input-icon-wrapper{
    position:relative;
}
.input-icon-wrapper i{
    position:absolute;
    left:12px;
    top:50%;
    transform:translateY(-50%);
    color:var(--muted);
    font-size:1rem;
}
.input-icon-wrapper input{
  padding-left:40px;
}
.form-options{
    display:flex;
    justify-content:space-between;
    align-items:center;
    margin:16px 0;
}
.checkbox-wrapper{
    display:flex;
    align-items:center;
    gap:8px;
    cursor:pointer;
}
.checkbox-wrapper input[type="checkbox"]{
    width:16px;
    height:16px;
}
.form-actions{
    display:flex;
  gap:12px;
    align-items:center;
    margin-top:24px;
}
.btn-block{
    width:100%;
    justify-content:center;
}
.search-form{
    display:flex;
    gap:12px;
    max-width:600px;
    margin-bottom:24px;
}
.search-form .input-icon-wrapper{
    flex:1;
}

/* Styles for password toggle buttons and inline field errors */
.btn-toggle-pass{
  margin-top:8px;
  padding:6px 8px;
  background:transparent;
  border:1px solid rgba(0,0,0,0.08);
  border-radius:6px;
  font-size:0.85rem;
  cursor:pointer;
  color:var(--accent);
}
.btn-toggle-pass:hover{
  background:rgba(11,95,165,0.06);
}
.field-error{
  color:var(--danger);
  margin-top:6px;
  font-size:0.9rem;
}
.text-xs{font-size:0.75rem}

/* Buttons */
.btn{
  display:inline-block;
  padding:10px 14px;
  border-radius:6px;
  text-decoration:none;
  border:0;
  cursor:pointer;
  transition:transform 0.15s ease, box-shadow 0.15s ease;
}
.btn-primary{
  background:var(--accent-2);
  color:#fff;
  box-shadow:0 2px 4px rgba(245,158,11,0.15);
}
.btn-primary:hover{
  transform:translateY(-1px);
  box-shadow:0 4px 8px rgba(245,158,11,0.2);
}
.btn-outline{
  background:transparent;
  border:1px solid #cbd5e1;
  color:#111;
}
.btn-outline:hover{
  border-color:var(--accent);
  color:var(--accent);
}
.btn-light{
  background:var(--accent-2);
  color:var(--accent);
  box-shadow:0 2px 4px rgba(0,0,0,0.06);
}
.btn-light:hover{
  transform:translateY(-1px);
  box-shadow:0 4px 8px rgba(0,0,0,0.08);
  transition:background 0.15s ease;
  color:var(--accent-2);
  border:1px solid var(--accent-2);
}

/* Pagination: unify librarian pages with user-style pagination */
.pagination{display:flex;gap:0.5rem;align-items:center;justify-content:center;margin-top:1rem}
.pagination .btn{padding:6px 10px;font-size:0.875rem;border-radius:6px}
.pagination .btn-outline{background:transparent;border:1px solid #e2e8f0;color:var(--muted);padding:6px 10px}
.pagination .btn-outline:hover{background:rgba(37,99,235,0.08);border-color:var(--accent);color:var(--accent)}
.pagination .pagination-info{font-size:0.95rem;color:var(--muted);padding:6px 8px}

/* If we need a highlighted current page style when numbering is added */
.pagination .current{background:var(--accent);color:#fff;border-color:var(--accent);}

/* Alerts / Flash */
.alert{padding:10px 14px;border-radius:6px;margin-bottom:16px;color:#072;position:relative}
.alert.flash-success{background:rgba(16,185,129,0.08);color:var(--success);border:1px solid rgba(16,185,129,0.15)}
.alert.flash-error{background:rgba(239,68,68,0.06);color:var(--danger);border:1px solid rgba(239,68,68,0.12)}
.alert.flash-info{background:rgba(59,130,246,0.06);color:var(--accent-2);border:1px solid rgba(59,130,246,0.12)}
.alert .dismiss{position:absolute;right:8px;top:8px;background:transparent;border:0;font-size:1rem;cursor:pointer}

/* Auth Pages */
.auth-page{
    background:linear-gradient(135deg, var(--accent) 0%, #1e40af 100%);
    min-height:100vh;
}
.auth-container{
    display:flex;
    align-items:center;
    justify-content:center;
    margin:4rem auto;
    padding: 0 16px;
    min-height:calc(100vh - 64px);
}
.auth-card{
    margin-top: 4rem;
    margin-bottom: 2rem;
    background:var(--surface);
    border-radius:12px;
    padding:32px;
    width:100%;
    box-shadow:0 4px 24px rgba(0,0,0,0.12);
}

.auth-card.register-card{
    max-width:820px;
}
.auth-card.login-card{
    max-width:420px;
}
.auth-header{
    text-align:center;
    margin-bottom:32px;
}
.auth-header h1{
    font-size:1.8rem;
    margin:0 0 8px;
    color:var(--accent);
}
.auth-header p{
    color:var(--muted);
    margin:0;
}
.auth-footer{
    text-align:center;
    margin-top:24px;
    padding-top:24px;
    border-top:1px solid #e6e9ef;
}
.auth-footer a{
    color:var(--accent);
    text-decoration:none;
}
.forgot-link{
    color:var(--muted);
    text-decoration:none;
    font-size:0.9rem;
}
.forgot-link:hover{
    color:var(--accent);
}

/* Book List */
.page-header{
    display:flex;
    justify-content:space-between;
    align-items:center;
    margin-bottom:32px;
}
.books-grid{
    display:grid;
    grid-template-columns:repeat(auto-fill, minmax(280px, 1fr));
    gap:24px;
    margin-bottom:32px;
}
.book-card{
    background:var(--surface);
    border-radius:var(--radius);
    overflow:hidden;
    transition:transform 0.2s ease, box-shadow 0.2s ease;
}
.book-card:hover{
    transform:translateY(-2px);
    box-shadow:0 4px 12px rgba(0,0,0,0.08);
}
.book-cover{
    aspect-ratio:3/4;
    background:#f4f4f4;
    display:flex;
    align-items:center;
    justify-content:center;
}
.book-cover img{
    width:100%;
    height:100%;
    object-fit:cover;
}
.book-cover-placeholder{
    font-size:2rem;
    color:var(--muted);
}
.book-info{
    padding:16px;
}
.book-info h3{
    margin:0 0 8px;
    font-size:1.1rem;
    color:var(--accent);
}
.book-author{
    color:var(--muted);
    margin:0 0 12px;
    font-size:0.9rem;
}
.book-meta{
    display:flex;
    justify-content:space-between;
    margin-bottom:16px;
    font-size:0.9rem;
}
.book-status{
    color:var(--danger);
}
.book-status.available{
    color:var(--success);
}
.book-quantity{
    color:var(--muted);
}
.book-actions{
    display:flex;
    gap:8px;
}
.btn-sm{
    padding:6px 10px;
    font-size:0.9rem;
}
.pagination{
    display:flex;
    align-items:center;
    justify-content:center;
    gap:16px;
    margin-top:32px;
}
.pagination-info{
    color:var(--muted);
}
.empty-state{
    text-align:center;
    padding:48px 0;
    color:var(--muted);
    grid-column:1/-1;
}
.empty-state i{
    font-size:3rem;
    margin-bottom:16px;
    opacity:0.5;
}

/* Responsive */
@media (max-width:720px){
    .site-nav{display:none}
    .logo-display{display:block;border-bottom:1px solid var(--accent-2);padding-bottom:8px;margin-bottom:8px}
    .nav-toggle{display:inline-block}
    .site-nav.mobile-open{border-radius:6px;border-right:2px solid #000; display:block;background:var(--accent);position:absolute;left:0;right:0;padding:12px; height:100vh; max-width:60%;top:0px}
    .site-nav.mobile-open ul{flex-direction:column; }
    .container{margin:12px auto}
    .page-header{
        flex-direction:column;
        gap:16px;
        text-align:center;
    }
    .search-form{
        flex-direction:column;
    }
    .auth-card{
        padding:24px 16px;
    }
}

/* Additional responsive tweaks specifically for the auth form to improve mobile UX */
@media (max-width:720px){
  .auth-container{margin:2rem auto; padding:0 12px; min-height: calc(100vh - 56px);} /* reduce vertical whitespace on small screens */
  .auth-card{max-width:96%; margin-top:1.2rem; padding:20px; box-shadow:0 6px 20px rgba(0,0,0,0.08);}    
  .auth-header h1{font-size:1.4rem}
  .auth-header p{font-size:0.95rem}
  .form-group{margin-bottom:12px}
  .input-icon-wrapper i{left:10px}
  .input-icon-wrapper input{padding-left:36px}
  /* Stack action buttons vertically for easier tapping */
  .form-actions{flex-direction:column; gap:12px; align-items:stretch}
  .form-actions .btn, .form-actions .btn-block{width:100%}
  .btn-toggle-pass{align-self:flex-end;padding:6px 10px}
  /* make error text slightly larger for readability */
  .field-error{font-size:0.95rem}
}

/* Very small screens */
@media (max-width:420px){
  .auth-card{padding:16px}
  .auth-header h1{font-size:1.2rem}
  .auth-header p{font-size:0.9rem}
  .btn-primary{padding:12px 14px}
  input, select{font-size:0.95rem}
}

/* Terms of Use page styling */
.terms-content{
  background: linear-gradient(180deg, rgba(255,255,255,0.98), rgba(250,250,250,0.98));
  border: 1px solid #eef3f7;
  border-radius: 10px;
  padding: 20px 22px;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.65;
  max-height: 62vh; /* allow scrolling on long documents */
  overflow: auto;
  box-shadow: 0 6px 18px rgba(16,24,40,0.04);
}
.terms-content h3{
  margin-top: 18px;
  margin-bottom: 10px;
  color: var(--accent);
  font-size: 1.05rem;
}
.terms-content p{ margin-bottom: 10px; color: #334155 }
.terms-content ul{ margin-left: 1.05rem; margin-bottom: 12px; }
.terms-content li{ margin-bottom:8px }
.terms-content strong{ color: var(--accent); }
.terms-content h3:first-of-type{ margin-top:0 }

/* Make terms content full height on small screens to avoid nested scrolling pain */
@media (max-width:720px){
  .terms-content{ max-height: none; padding:16px; }
}

/* Small polish: ensure links inside terms are visible */
.terms-content a{ color: var(--accent); text-decoration:underline }

/* Terms actions (accept button) */
.terms-actions{ margin-top:18px; display:flex; justify-content:left; }
.terms-accept-btn{ padding:10px 18px; border-radius:8px; font-weight:600; box-shadow:0 6px 18px rgba(11,95,165,0.12); }
.terms-accept-btn:hover{ transform:translateY(-2px); box-shadow:0 10px 24px rgba(11,95,165,0.14); }


/* Desktop / large screens: align form fields into logical rows */
@media (min-width: 721px) {
  .auth-form {
    display: block; /* default */
  }
  .auth-form .form-row.row-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    align-items: start;
  }
  .auth-form .form-row.row-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    align-items: start;
  }
  /* ensure spacing between grid rows */
  .auth-form .form-row { margin-bottom: 16px; }
  /* smooth transitions for layout changes: animate individual controls */
  .auth-form .form-row .form-group{
    transition: transform 0.28s ease, opacity 0.28s ease, margin 0.28s ease;
    will-change: transform, opacity, margin;
  }
  /* subtle lift on focus for inputs on desktop */
  .form-group input:focus, .form-group select:focus{
    transform: translateY(-3px);
    box-shadow:0 6px 20px rgba(11,95,165,0.08);
  }
  /* make the form-actions align to the end on large screens and keep buttons inline */
  .auth-card .form-actions{
    flex-direction:row;
    justify-content:flex-end;
    gap:12px;
    align-items:center;
  }
  .form-actions .btn, .form-actions .btn-block{width:auto}
}

/* provide initial subtle offset on small screens so transition is visible when breakpoint changes */
@media (max-width:720px){
  .auth-form .form-row .form-group{ transform: translateY(6px); opacity:0.98 }
}