@import url('https://fonts.googleapis.com/css2?family=Literata:ital,opsz,wght@0,7..72,400;0,7..72,500;0,7..72,600;0,7..72,700;1,7..72,400&family=Fraunces:ital,opsz,wght,SOFT,WONK@1,9..144,700,100,1&display=swap');

:root {
  --stacks-bg: #faf8f2;
  --stacks-bg-secondary: #ffffff;
  --stacks-text: #1a1a1a;
  --stacks-text-muted: #6b6356;
  --stacks-orange: #e0742a;
  --stacks-teal: #1aab92;
  --stacks-purple: #7a68d4;
  --stacks-shadow: rgba(0, 0, 0, 0.08);
  --stacks-border: rgba(0, 0, 0, 0.1);
  --stacks-input-bg: #f2efe8;
  --stacks-hover: #f0ece4;
}

/* ===== Global ===== */

body {
  font-family: 'Literata', system-ui, -apple-system, sans-serif !important;
  background: var(--stacks-bg) !important;
  color: var(--stacks-text) !important;
}

a { color: var(--stacks-teal) !important; }
a:hover { color: var(--stacks-orange) !important; text-decoration: none !important; }

h1, h2, h3, h4, h5, h6,
.discover h2 {
  font-family: 'Literata', system-ui, sans-serif !important;
  color: var(--stacks-text) !important;
  font-weight: 700 !important;
  letter-spacing: 0.02em;
}

/* ===== Navbar ===== */

.navbar-default {
  background: var(--stacks-bg-secondary) !important;
  border-bottom: 1px solid var(--stacks-border) !important;
  box-shadow: 0 1px 4px var(--stacks-shadow) !important;
}

.navbar-default .navbar-brand {
  font-family: 'Fraunces', Georgia, serif !important;
  color: var(--stacks-orange) !important;
  font-weight: 700 !important;
  font-size: 22px !important;
  letter-spacing: 0.02em;
  text-transform: none;
  font-style: italic;
}

.navbar-default .navbar-nav > li > a,
.navbar-default .navbar-nav > li > a:focus {
  color: var(--stacks-text-muted) !important;
  font-weight: 500 !important;
}

.navbar-default .navbar-nav > li > a:hover {
  color: var(--stacks-orange) !important;
}

.navbar-default .navbar-toggle .icon-bar {
  background-color: var(--stacks-text-muted) !important;
}

.navbar-default .navbar-toggle:hover .icon-bar {
  background-color: var(--stacks-orange) !important;
}

.navbar-default .navbar-collapse {
  border-color: var(--stacks-border) !important;
}

/* ===== Search ===== */

.form-control,
input.form-control {
  background: var(--stacks-input-bg) !important;
  border: 1px solid var(--stacks-border) !important;
  color: var(--stacks-text) !important;
  border-radius: 8px !important;
  font-family: 'Literata', system-ui, sans-serif !important;
}

.form-control:focus {
  border-color: var(--stacks-teal) !important;
  box-shadow: 0 0 0 2px rgba(26, 171, 146, 0.15) !important;
}

.form-control::placeholder {
  color: var(--stacks-text-muted) !important;
  opacity: 0.6;
}

/* ===== Buttons ===== */

.btn-default {
  background: var(--stacks-bg-secondary) !important;
  border: 1px solid var(--stacks-border) !important;
  color: var(--stacks-text) !important;
  border-radius: 8px !important;
  font-weight: 500 !important;
  font-family: 'Literata', system-ui, sans-serif !important;
  transition: all 0.15s ease !important;
}

.btn-default:hover,
.btn-default:focus {
  background: var(--stacks-hover) !important;
  border-color: var(--stacks-teal) !important;
  color: var(--stacks-teal) !important;
}

.btn-primary {
  background: var(--stacks-teal) !important;
  border-color: var(--stacks-teal) !important;
  color: #ffffff !important;
  border-radius: 8px !important;
  font-weight: 600 !important;
}

.btn-primary:hover {
  background: var(--stacks-orange) !important;
  border-color: var(--stacks-orange) !important;
}

/* ===== Sidebar ===== */

#sidebar,
.col-sm-2 {
  background: var(--stacks-bg) !important;
}

#sidebar a,
.navigation a,
.sidebar-nav a {
  color: var(--stacks-text-muted) !important;
  font-weight: 500 !important;
  transition: color 0.15s ease !important;
}

#sidebar a:hover,
.navigation a:hover,
.sidebar-nav a:hover {
  color: var(--stacks-orange) !important;
}

#sidebar h4,
.navigation h4 {
  color: var(--stacks-text-muted) !important;
  text-transform: uppercase !important;
  font-size: 11px !important;
  letter-spacing: 0.1em !important;
  font-weight: 600 !important;
}

hr {
  border-color: var(--stacks-border) !important;
}

/* ===== Book Cards & Covers ===== */

.book {
  margin-bottom: 24px !important;
  padding: 8px !important;
}

.book .cover {
  border-radius: 6px !important;
  box-shadow: 0 4px 12px var(--stacks-shadow) !important;
  transition: transform 0.2s ease, box-shadow 0.2s ease !important;
  overflow: hidden !important;
  position: relative !important;
}

.book .cover img {
  width: 100% !important;
  height: auto !important;
  border-radius: 6px !important;
}

.book .cover:hover {
  transform: translateY(-4px) scale(1.02) !important;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15) !important;
}

.book .meta {
  padding: 8px 2px 0 !important;
}

.book .meta a:first-child {
  display: block !important;
  font-size: 13px !important;
  font-weight: 600 !important;
  line-height: 1.3 !important;
  color: var(--stacks-text) !important;
  margin-bottom: 2px !important;
}

.book .meta .author a,
.book .meta p.author a {
  font-size: 12px !important;
  color: var(--stacks-text-muted) !important;
  font-weight: 400 !important;
}

.book-title,
.book .title a {
  color: var(--stacks-text) !important;
  font-weight: 600 !important;
}

.book .authors a,
.book-author {
  color: var(--stacks-teal) !important;
  font-weight: 400 !important;
}

.book .rating .glyphicon {
  color: var(--stacks-orange) !important;
}

.row.display-flex {
  display: flex !important;
  flex-wrap: wrap !important;
}

/* ===== Well / Panels ===== */

.well {
  background: var(--stacks-bg-secondary) !important;
  border: 1px solid var(--stacks-border) !important;
  border-radius: 12px !important;
  box-shadow: 0 2px 8px var(--stacks-shadow) !important;
}

.panel,
.panel-default {
  background: var(--stacks-bg-secondary) !important;
  border: 1px solid var(--stacks-border) !important;
  border-radius: 12px !important;
}

.panel-heading {
  background: var(--stacks-hover) !important;
  border-bottom: 1px solid var(--stacks-border) !important;
  border-radius: 12px 12px 0 0 !important;
  color: var(--stacks-text) !important;
}

/* ===== Login Page ===== */

.login .well {
  max-width: 400px !important;
  margin: 80px auto !important;
  padding: 32px !important;
  float: none !important;
  width: 100% !important;
}

.login .well h2 {
  text-align: center !important;
  text-transform: uppercase !important;
  letter-spacing: 0.08em !important;
  margin-bottom: 24px !important;
  font-size: 22px !important;
}

.login .well label {
  color: var(--stacks-text-muted) !important;
  font-weight: 500 !important;
  text-transform: uppercase !important;
  font-size: 11px !important;
  letter-spacing: 0.06em !important;
}

.login .well .btn {
  width: 100% !important;
  margin-top: 12px !important;
  padding: 10px !important;
  background: var(--stacks-teal) !important;
  border-color: var(--stacks-teal) !important;
  color: #ffffff !important;
  font-weight: 600 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.05em !important;
}

.login .well .btn:hover {
  background: var(--stacks-orange) !important;
  border-color: var(--stacks-orange) !important;
}

.login .checkbox label {
  color: var(--stacks-text-muted) !important;
  text-transform: none !important;
  font-size: 13px !important;
}

/* ===== Alerts ===== */

.alert-success {
  background: rgba(26, 171, 146, 0.1) !important;
  border-color: rgba(26, 171, 146, 0.25) !important;
  color: var(--stacks-teal) !important;
}

.alert-danger {
  background: rgba(224, 116, 42, 0.1) !important;
  border-color: rgba(224, 116, 42, 0.25) !important;
  color: var(--stacks-orange) !important;
}

.alert-info {
  background: rgba(122, 104, 212, 0.1) !important;
  border-color: rgba(122, 104, 212, 0.25) !important;
  color: var(--stacks-purple) !important;
}

/* ===== Tables ===== */

.table > thead > tr > th,
.table > tbody > tr > td {
  border-color: var(--stacks-border) !important;
  color: var(--stacks-text) !important;
}

.table-striped > tbody > tr:nth-of-type(odd) {
  background: var(--stacks-hover) !important;
}

.table-hover > tbody > tr:hover {
  background: var(--stacks-hover) !important;
}

/* ===== Dropdowns ===== */

.dropdown-menu {
  background: var(--stacks-bg-secondary) !important;
  border: 1px solid var(--stacks-border) !important;
  border-radius: 8px !important;
  box-shadow: 0 8px 24px var(--stacks-shadow) !important;
}

.dropdown-menu > li > a {
  color: var(--stacks-text) !important;
}

.dropdown-menu > li > a:hover {
  background: var(--stacks-hover) !important;
  color: var(--stacks-orange) !important;
}

/* ===== Sort Buttons ===== */

.col-sm-10 > .btn-group .btn,
.sort-btn {
  background: var(--stacks-bg-secondary) !important;
  border-color: var(--stacks-border) !important;
  color: var(--stacks-text-muted) !important;
  font-size: 12px !important;
  padding: 6px 10px !important;
}

.col-sm-10 > .btn-group .btn:hover,
.col-sm-10 > .btn-group .btn.active {
  background: var(--stacks-hover) !important;
  color: var(--stacks-teal) !important;
  border-color: var(--stacks-teal) !important;
}

/* ===== Pagination ===== */

.pagination > li > a,
.pagination > li > span {
  background: var(--stacks-bg-secondary) !important;
  border-color: var(--stacks-border) !important;
  color: var(--stacks-text-muted) !important;
}

.pagination > li > a:hover {
  background: var(--stacks-hover) !important;
  color: var(--stacks-orange) !important;
}

.pagination > .active > a {
  background: var(--stacks-teal) !important;
  border-color: var(--stacks-teal) !important;
  color: #ffffff !important;
}

/* ===== Modal ===== */

.modal-content {
  background: var(--stacks-bg-secondary) !important;
  border: 1px solid var(--stacks-border) !important;
  border-radius: 12px !important;
  color: var(--stacks-text) !important;
}

.modal-header {
  border-bottom-color: var(--stacks-border) !important;
}

.modal-footer {
  border-top-color: var(--stacks-border) !important;
}

.close {
  color: var(--stacks-text-muted) !important;
  opacity: 0.6 !important;
}

.close:hover {
  color: var(--stacks-orange) !important;
  opacity: 1 !important;
}

/* ===== Book Detail Modal — Download Buttons ===== */

#bookDetailsModal .btn-toolbar {
  margin-bottom: 16px !important;
}

#bookDetailsModal .btn-toolbar .btn-group {
  display: flex !important;
  flex-wrap: wrap !important;
  gap: 8px !important;
  width: 100% !important;
  margin-bottom: 8px !important;
}

#bookDetailsModal .btn-toolbar .btn-group .btn-group {
  margin-bottom: 0 !important;
}

#bookDetailsModal .btn-toolbar .btn-primary {
  background: var(--stacks-teal) !important;
  border-color: var(--stacks-teal) !important;
  color: #ffffff !important;
  border-radius: 8px !important;
  font-weight: 600 !important;
  font-size: 15px !important;
  padding: 12px 20px !important;
  min-height: 48px !important;
  transition: all 0.15s ease !important;
}

#bookDetailsModal .btn-toolbar .btn-primary:hover {
  background: var(--stacks-orange) !important;
  border-color: var(--stacks-orange) !important;
  transform: translateY(-1px) !important;
  box-shadow: 0 4px 12px rgba(224, 116, 42, 0.3) !important;
}

#bookDetailsModal .btn-toolbar .btn-primary .glyphicon {
  color: #ffffff !important;
  margin-right: 6px !important;
}

#bookDetailsModal .btn-toolbar a.btn-primary[href*="/download/"] {
  background: var(--stacks-orange) !important;
  border-color: var(--stacks-orange) !important;
  font-size: 16px !important;
  font-weight: 700 !important;
  flex-grow: 1 !important;
}

#bookDetailsModal .btn-toolbar a.btn-primary[href*="/download/"]:hover {
  background: #c5611f !important;
  border-color: #c5611f !important;
}

#bookDetailsModal .single .cover img {
  border-radius: 8px !important;
  box-shadow: 0 8px 24px var(--stacks-shadow) !important;
}

#bookDetailsModal .book-meta h2 {
  font-size: 20px !important;
  margin-top: 8px !important;
  margin-bottom: 4px !important;
  line-height: 1.3 !important;
}

#bookDetailsModal .book-meta .author a {
  font-size: 15px !important;
  color: var(--stacks-teal) !important;
}

#bookDetailsModal .dropdown-menu {
  border-radius: 8px !important;
  padding: 4px !important;
  min-width: 200px !important;
}

#bookDetailsModal .dropdown-menu > li > a {
  padding: 10px 16px !important;
  font-size: 14px !important;
  font-weight: 500 !important;
  border-radius: 6px !important;
}

#bookDetailsModal .dropdown-menu > li > a:hover {
  background: var(--stacks-teal) !important;
  color: #ffffff !important;
}

/* ===== Upload button ===== */

#btn-upload,
a[href*="upload"] {
  background: var(--stacks-orange) !important;
  border-color: var(--stacks-orange) !important;
  color: #ffffff !important;
  border-radius: 8px !important;
  font-weight: 600 !important;
}

#btn-upload:hover,
a[href*="upload"]:hover {
  background: var(--stacks-teal) !important;
  border-color: var(--stacks-teal) !important;
  color: #ffffff !important;
}

/* ===== Scrollbar ===== */

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--stacks-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--stacks-text-muted);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--stacks-orange);
}

/* ===== Miscellaneous ===== */

.container-fluid {
  background: var(--stacks-bg) !important;
}

label {
  color: var(--stacks-text) !important;
}

select.form-control {
  background: var(--stacks-input-bg) !important;
  color: var(--stacks-text) !important;
}

.badge {
  background: var(--stacks-teal) !important;
  color: #ffffff !important;
  font-weight: 600 !important;
}

.text-muted {
  color: var(--stacks-text-muted) !important;
}

.glyphicon {
  color: var(--stacks-text-muted);
}

/* ===== Mobile Responsive ===== */

@media (max-width: 767px) {
  .book {
    padding: 6px !important;
  }

  .book .meta a:first-child {
    font-size: 12px !important;
  }

  .book .meta .author a,
  .book .meta p.author a {
    font-size: 11px !important;
  }

  .navbar-default .navbar-brand {
    font-size: 18px !important;
  }

  h2 {
    font-size: 20px !important;
  }

  #bookDetailsModal .modal-dialog {
    margin: 10px !important;
  }

  #bookDetailsModal .modal-body {
    padding: 12px !important;
  }

  #bookDetailsModal .single .row {
    display: flex !important;
    flex-direction: column !important;
  }

  #bookDetailsModal .single .col-sm-3,
  #bookDetailsModal .single .col-xs-5 {
    width: 50% !important;
    margin: 0 auto 12px !important;
    float: none !important;
  }

  #bookDetailsModal .single .col-sm-9 {
    width: 100% !important;
    float: none !important;
  }

  #bookDetailsModal .btn-toolbar .btn-primary {
    font-size: 14px !important;
    padding: 12px 16px !important;
    min-height: 48px !important;
  }

  #bookDetailsModal .btn-toolbar a.btn-primary[href*="/download/"] {
    font-size: 15px !important;
    width: 100% !important;
    text-align: center !important;
  }
}

@media (min-width: 768px) and (max-width: 991px) {
  .book.col-sm-3 {
    width: 33.333% !important;
  }
}

@media (min-width: 992px) and (max-width: 1199px) {
  .book.col-lg-2 {
    width: 20% !important;
  }
}

@media (min-width: 1200px) {
  .book.col-lg-2 {
    width: 16.666% !important;
  }
}