:root {
  --uin-primary: #0f6b4f;
  --uin-primary-dark: #084c3a;
  --uin-primary-soft: #e5f3ed;
  --uin-primary-quiet: #f1faf5;
  --uin-accent: #c9a227;
  --uin-accent-soft: #fff6d8;
  --uin-bg: #f7faf8;
  --uin-surface: #ffffff;
  --uin-text: #1f2933;
  --uin-muted: #6b7280;
  --uin-border: #e5e7eb;
  --uin-danger: #b42318;
  --uin-danger-soft: #fff1f0;
  --uin-success: #117a52;
  --uin-success-soft: #e4f6ee;
  --uin-warning: #9a6700;
  --uin-warning-soft: #fff7df;
  --bs-primary: var(--uin-primary);
  --bs-primary-rgb: 15, 107, 79;
  --bs-link-color: var(--uin-primary);
  --bs-link-hover-color: var(--uin-primary-dark);
}

html,
body {
  max-width: 100%;
}

body {
  overflow-x: hidden;
  color: var(--uin-text);
  background: var(--uin-bg);
  font-family: "Aptos", "Segoe UI", Tahoma, sans-serif;
}

body.sidebar-open {
  overflow: hidden;
}

body.sidebar-open::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1040;
  background: rgba(8, 76, 58, 0.34);
  backdrop-filter: blur(2px);
}

.text-primary { color: var(--uin-primary) !important; }
.bg-primary { background-color: var(--uin-primary) !important; }
.border-primary { border-color: var(--uin-primary) !important; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  border-radius: 10px;
  font-weight: 650;
}

.btn-primary {
  --bs-btn-bg: var(--uin-primary);
  --bs-btn-border-color: var(--uin-primary);
  --bs-btn-hover-bg: var(--uin-primary-dark);
  --bs-btn-hover-border-color: var(--uin-primary-dark);
  --bs-btn-active-bg: var(--uin-primary-dark);
  --bs-btn-active-border-color: var(--uin-primary-dark);
  --bs-btn-disabled-bg: var(--uin-primary);
  --bs-btn-disabled-border-color: var(--uin-primary);
}

.btn-outline-primary {
  --bs-btn-color: var(--uin-primary);
  --bs-btn-border-color: var(--uin-primary);
  --bs-btn-hover-bg: var(--uin-primary);
  --bs-btn-hover-border-color: var(--uin-primary);
  --bs-btn-active-bg: var(--uin-primary-dark);
  --bs-btn-active-border-color: var(--uin-primary-dark);
}

.pagination {
  --bs-pagination-color: var(--uin-primary);
  --bs-pagination-hover-color: var(--uin-primary-dark);
  --bs-pagination-focus-box-shadow: 0 0 0 0.2rem rgba(15, 107, 79, 0.12);
  --bs-pagination-active-bg: var(--uin-primary);
  --bs-pagination-active-border-color: var(--uin-primary);
}

.dropdown-item:active,
.dropdown-item.active {
  background-color: var(--uin-primary);
}

.form-control,
.form-select,
.input-group-text {
  border-color: var(--uin-border);
  border-radius: 10px;
}

.input-group .form-control,
.input-group .input-group-text {
  border-radius: 0;
}

.input-group .input-group-text:first-child {
  border-top-left-radius: 10px;
  border-bottom-left-radius: 10px;
  background: var(--uin-primary-quiet);
  color: var(--uin-primary);
}

.input-group .form-control:last-child {
  border-top-right-radius: 10px;
  border-bottom-right-radius: 10px;
}

.form-control:focus,
.form-select:focus {
  border-color: rgba(15, 107, 79, 0.45);
  box-shadow: 0 0 0 0.2rem rgba(15, 107, 79, 0.12);
}

.badge {
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.badge.bg-info,
.badge-soft-info {
  background: var(--uin-primary-soft) !important;
  color: var(--uin-primary-dark) !important;
}

.badge.bg-success,
.badge-available,
.badge-returned {
  background: var(--uin-success-soft) !important;
  color: var(--uin-success) !important;
}

.badge.bg-danger,
.badge-unavailable,
.badge-overdue {
  background: var(--uin-danger-soft) !important;
  color: var(--uin-danger) !important;
}

.badge-borrowed {
  background: var(--uin-warning-soft);
  color: var(--uin-warning);
}

#wrapper {
  width: 100%;
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(circle at top right, rgba(15, 107, 79, 0.08), transparent 32rem),
    var(--uin-bg);
}

#sidebar {
  flex: 0 0 248px;
  min-width: 248px;
  max-width: 248px;
  min-height: 100vh;
  color: #ffffff;
  background:
    linear-gradient(145deg, rgba(8, 76, 58, 0.98), rgba(15, 107, 79, 0.96)),
    var(--uin-primary-dark);
  box-shadow: 14px 0 30px rgba(8, 76, 58, 0.12);
  transition: all 0.3s ease;
}

.sidebar-header {
  padding: 1.5rem 1.25rem 1.2rem;
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.sidebar-brand-mark {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  color: var(--uin-primary-dark);
  background: linear-gradient(135deg, #ffffff 0%, #f8f2d2 100%);
  box-shadow: 0 14px 24px rgba(0, 0, 0, 0.16);
}

.sidebar-brand-mark img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.sidebar-kicker {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

#sidebar .nav {
  padding-top: 1rem;
}

#sidebar .nav-link {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin: 0.16rem 0.65rem;
  padding: 0.72rem 0.9rem;
  border-radius: 12px;
  color: rgba(255, 255, 255, 0.78) !important;
  font-size: 0.92rem;
  font-weight: 650;
  transition: all 0.2s ease;
}

#sidebar .nav-link i {
  width: 1.1rem;
  color: rgba(255, 255, 255, 0.7);
}

#sidebar .nav-link:hover {
  color: #ffffff !important;
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(2px);
}

#sidebar .nav-link.active {
  color: var(--uin-primary-dark) !important;
  background: linear-gradient(135deg, #ffffff 0%, #fff6d8 100%) !important;
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.16);
}

#sidebar .nav-link.active i {
  color: var(--uin-primary);
}

#sidebar hr {
  margin: 0.85rem 1rem;
  opacity: 0.18;
}

#page-content {
  width: 100%;
  min-width: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: transparent;
}

main {
  flex: 1;
}

.navbar {
  position: relative;
  z-index: 1060;
  min-height: 68px;
  background: rgba(255, 255, 255, 0.88) !important;
  backdrop-filter: blur(12px);
}

.navbar .dropdown-menu {
  z-index: 1070;
}

.navbar-brand {
  color: var(--uin-primary-dark) !important;
}

.navbar .btn-light {
  border: 1px solid var(--uin-border);
  background: #ffffff;
}

.navbar .dropdown-toggle {
  min-width: 0;
}

.navbar-profile-photo,
.navbar-profile-placeholder {
  width: 32px;
  height: 32px;
  flex: 0 0 32px;
  border-radius: 50%;
}

.navbar-profile-photo {
  object-fit: cover;
  border: 2px solid #ffffff;
  box-shadow: 0 6px 14px rgba(15, 107, 79, 0.16);
}

.navbar-profile-placeholder {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--uin-primary);
  background: var(--uin-primary-soft);
  font-size: 1rem;
}

footer {
  background: rgba(255, 255, 255, 0.62);
}

.card {
  border-radius: 14px;
}

.card,
.card-body,
.card-header {
  min-width: 0;
}

.shadow-sm {
  box-shadow: 0 12px 32px rgba(31, 41, 51, 0.07) !important;
}

.stat-card {
  position: relative;
  overflow: hidden;
  height: 100%;
  border: 1px solid rgba(15, 107, 79, 0.08);
  border-radius: 14px;
  background: var(--uin-surface);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card::after {
  content: "";
  position: absolute;
  inset: auto -28px -36px auto;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: var(--stat-soft, var(--uin-primary-soft));
}

.stat-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 38px rgba(31, 41, 51, 0.1);
}

.stat-card .small {
  color: var(--uin-muted);
  opacity: 1 !important;
}

.stat-card .fs-3 {
  color: var(--uin-text);
}

.stat-card .stat-icon {
  position: relative;
  z-index: 1;
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  color: var(--stat-color, var(--uin-primary));
  background: var(--stat-soft, var(--uin-primary-soft));
  font-size: 1.35rem;
  opacity: 1;
}

.stat-primary { --stat-color: var(--uin-primary); --stat-soft: var(--uin-primary-soft); }
.stat-accent { --stat-color: var(--uin-accent); --stat-soft: var(--uin-accent-soft); }
.stat-success { --stat-color: var(--uin-success); --stat-soft: var(--uin-success-soft); }
.stat-warning { --stat-color: var(--uin-warning); --stat-soft: var(--uin-warning-soft); }
.stat-danger { --stat-color: var(--uin-danger); --stat-soft: var(--uin-danger-soft); }
.stat-muted { --stat-color: #4b5563; --stat-soft: #f3f4f6; }

.book-card {
  height: 100%;
  overflow: hidden;
  border: 1px solid rgba(15, 107, 79, 0.08);
  border-radius: 14px;
  background: #ffffff;
  transition: all 0.25s ease;
}

.book-card:hover {
  box-shadow: 0 18px 36px rgba(15, 107, 79, 0.14);
  transform: translateY(-4px);
}

.book-card .card-img-top {
  height: 190px;
  object-fit: cover;
  background: var(--uin-primary-soft);
}

.book-card .card-body {
  padding: 0.95rem;
}

.book-card .book-title {
  min-height: 2.4rem;
  color: var(--uin-text);
  display: -webkit-box;
  overflow: hidden;
  font-size: 0.95rem;
  font-weight: 750;
  line-height: 1.25;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.book-card .book-author {
  margin-top: 0.28rem;
  color: var(--uin-muted);
  font-size: 0.82rem;
  overflow-wrap: anywhere;
}

.book-placeholder {
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--uin-primary);
  background:
    linear-gradient(135deg, rgba(15, 107, 79, 0.08), rgba(201, 162, 39, 0.13)),
    var(--uin-primary-quiet);
  font-size: 3rem;
}

.book-placeholder i {
  filter: drop-shadow(0 10px 18px rgba(15, 107, 79, 0.12));
}

.table-modern {
  overflow: hidden;
  border-radius: 14px;
}

.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.table-responsive .table {
  margin-bottom: 0;
}

.table-modern,
.table-responsive > .table {
  min-width: 720px;
}

.table-borderless td {
  overflow-wrap: anywhere;
  vertical-align: top;
}

.table-modern thead th {
  border: none;
  background: var(--uin-primary-quiet);
  color: var(--uin-primary-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.table-hover tbody tr:hover {
  background-color: rgba(15, 107, 79, 0.04);
}

.notif-item {
  border-left: 4px solid transparent;
  transition: all 0.2s ease;
}

.notif-item.unread {
  background: var(--uin-primary-quiet);
  border-left-color: var(--uin-primary);
}

.notif-item:hover {
  background: #f8fbf9;
}

.notif-item {
  min-width: 0;
}

.notif-item .flex-grow-1 {
  min-width: 0;
}

.notif-item h6,
.notif-item p {
  overflow-wrap: anywhere;
}

.profile-photo {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border: 4px solid white;
  border-radius: 50%;
  box-shadow: 0 12px 30px rgba(15, 107, 79, 0.16);
}

.profile-photo-placeholder {
  width: 120px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  border: 4px solid white;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--uin-primary) 0%, var(--uin-primary-dark) 100%);
  box-shadow: 0 12px 30px rgba(15, 107, 79, 0.16);
  font-size: 3rem;
}

.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.error-code {
  color: var(--uin-primary);
  font-size: 6rem;
  font-weight: 850;
  line-height: 1;
}

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 2rem 0;
  background:
    radial-gradient(circle at 18% 18%, rgba(201, 162, 39, 0.18), transparent 17rem),
    radial-gradient(circle at 86% 22%, rgba(255, 255, 255, 0.13), transparent 20rem),
    linear-gradient(135deg, var(--uin-primary-dark), var(--uin-primary));
}

.auth-page::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.16;
  background-image:
    linear-gradient(30deg, rgba(255, 255, 255, 0.42) 12%, transparent 12.5%, transparent 87%, rgba(255, 255, 255, 0.42) 87.5%, rgba(255, 255, 255, 0.42)),
    linear-gradient(150deg, rgba(255, 255, 255, 0.42) 12%, transparent 12.5%, transparent 87%, rgba(255, 255, 255, 0.42) 87.5%, rgba(255, 255, 255, 0.42));
  background-position: 0 0, 18px 32px;
  background-size: 36px 64px;
}

.auth-card {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 18px;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.26);
}

.auth-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 6px;
  background: linear-gradient(90deg, var(--uin-primary), var(--uin-accent));
}

.auth-header {
  padding: 1.5rem 0 1rem;
  text-align: center;
}

.auth-header .auth-icon {
  width: 62px;
  height: 62px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--uin-primary);
  border-radius: 18px;
  background: var(--uin-primary-soft);
  font-size: 2rem;
}

.auth-header h3 {
  color: var(--uin-primary-dark);
}

.auth-kicker {
  color: var(--uin-accent);
  font-size: 0.75rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.login-split-page {
  min-height: 100vh;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 12% 10%, rgba(15, 107, 79, 0.1), transparent 22rem),
    linear-gradient(135deg, #f7faf8 0%, #eef7f2 100%);
}

.login-split-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(420px, 0.9fr) minmax(0, 1.1fr);
}

.login-split-page main {
  padding: 0 !important;
}

.login-form-panel {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1.5rem, 4vw, 4rem);
  background:
    linear-gradient(90deg, #ffffff 0%, rgba(255, 255, 255, 0.94) 78%, rgba(255, 255, 255, 0.72) 100%);
}

.login-form-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.08;
  background-image:
    linear-gradient(30deg, var(--uin-primary) 12%, transparent 12.5%, transparent 87%, var(--uin-primary) 87.5%, var(--uin-primary)),
    linear-gradient(150deg, var(--uin-primary) 12%, transparent 12.5%, transparent 87%, var(--uin-primary) 87.5%, var(--uin-primary));
  background-position: 0 0, 18px 32px;
  background-size: 36px 64px;
}

.login-form-card {
  position: relative;
  width: min(100%, 440px);
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: clamp(2rem, 5vw, 4rem);
}

.login-brand-mark {
  width: 72px;
  height: 72px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  border-radius: 16px;
  background: #ffffff;
  box-shadow: 0 18px 34px rgba(15, 107, 79, 0.22);
  font-size: 1.7rem;
}

.login-brand-mark img {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.login-title {
  margin: 0.15rem 0 0;
  color: var(--uin-primary-dark);
  font-size: 1.25rem;
  font-weight: 850;
}

.login-copy {
  margin-bottom: 1.8rem;
}

.login-eyebrow {
  margin-bottom: 0.55rem;
  color: var(--uin-accent);
  font-size: 0.78rem;
  font-weight: 850;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.login-copy h2 {
  margin-bottom: 0.65rem;
  color: var(--uin-text);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 850;
  letter-spacing: -0.02em;
  line-height: 1;
}

.login-copy p:not(.login-eyebrow) {
  max-width: 35rem;
  margin-bottom: 0;
  color: var(--uin-muted);
  font-size: 1rem;
  line-height: 1.65;
}

.login-form {
  padding: 1.25rem;
  border: 1px solid rgba(15, 107, 79, 0.09);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: 0 18px 48px rgba(31, 41, 51, 0.08);
  backdrop-filter: blur(14px);
}

.login-form .form-control,
.login-form .input-group-text {
  min-height: 48px;
}

.login-footer {
  margin-top: 1rem;
  text-align: center;
}

.login-media-panel {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  background: var(--uin-primary-dark);
}

.login-media-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.login-media-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 76, 58, 0.5), rgba(8, 76, 58, 0.08) 45%),
    linear-gradient(0deg, rgba(4, 35, 27, 0.78), rgba(4, 35, 27, 0.12) 58%);
}

.login-media-overlay {
  position: absolute;
  z-index: 1;
  inset: auto clamp(1.5rem, 4vw, 4rem) clamp(1.5rem, 5vw, 4.5rem);
  max-width: 560px;
  color: #ffffff;
}

.login-media-badge {
  width: fit-content;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 1.2rem;
  padding: 0.55rem 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.13);
  backdrop-filter: blur(12px);
  color: #fff6d8;
  font-size: 0.84rem;
  font-weight: 750;
}

.login-media-overlay h2 {
  max-width: 12ch;
  margin-bottom: 0.75rem;
  font-size: clamp(2.1rem, 5vw, 4.8rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 0.95;
}

.login-media-overlay p {
  max-width: 34rem;
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.02rem;
  line-height: 1.65;
}

.page-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.mobile-stack-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.mobile-fluid-table {
  width: 100%;
}

.borrow-mobile-list {
  display: none;
}

.borrow-mobile-card {
  border: 1px solid rgba(15, 107, 79, 0.1);
  border-radius: 14px;
  background: #ffffff;
  box-shadow: 0 12px 30px rgba(31, 41, 51, 0.07);
  overflow: hidden;
}

.borrow-mobile-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 1rem 1rem 0.75rem;
}

.borrow-mobile-number {
  margin-bottom: 0.25rem;
  color: var(--uin-accent);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.06em;
}

.borrow-mobile-card h5 {
  margin: 0;
  color: var(--uin-text);
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.borrow-mobile-card p {
  margin: 0.35rem 0 0;
  color: var(--uin-muted);
  font-size: 0.82rem;
}

.borrow-mobile-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
  margin: 0;
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--uin-border);
  background: var(--uin-primary-quiet);
}

.borrow-mobile-meta div {
  min-width: 0;
}

.borrow-mobile-meta dt {
  color: var(--uin-muted);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.borrow-mobile-meta dd {
  margin: 0.2rem 0 0;
  color: var(--uin-text);
  font-size: 0.88rem;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.borrow-mobile-action {
  padding: 0.9rem 1rem 1rem;
}

.borrow-mobile-empty {
  border: 1px dashed rgba(15, 107, 79, 0.25);
  border-radius: 14px;
  background: #ffffff;
}

.attendance-status-card {
  height: 100%;
  border: 1px solid rgba(15, 107, 79, 0.08) !important;
}

.attendance-status-card.is-inside {
  background:
    linear-gradient(135deg, rgba(15, 107, 79, 0.08), rgba(201, 162, 39, 0.1)),
    #ffffff;
}

.attendance-status-icon,
.attendance-confirm-icon {
  width: 58px;
  height: 58px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--uin-primary);
  border-radius: 18px;
  background: var(--uin-primary-soft);
  font-size: 1.7rem;
}

.attendance-confirm-icon {
  width: 76px;
  height: 76px;
  margin: 0 auto;
  font-size: 2.2rem;
}

.attendance-confirm-icon.is-invalid {
  color: var(--uin-danger);
  background: var(--uin-danger-soft);
}

.attendance-qr-card {
  position: sticky;
  top: 86px;
}

.attendance-qr-frame {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  border: 1px solid rgba(15, 107, 79, 0.12);
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(15, 107, 79, 0.06), rgba(201, 162, 39, 0.1)),
    #ffffff;
}

.attendance-qr-frame img {
  width: min(100%, 320px);
  height: auto;
  border-radius: 12px;
}

.attendance-token-box {
  max-width: 100%;
  padding: 0.65rem 0.75rem;
  overflow: hidden;
  border: 1px dashed rgba(15, 107, 79, 0.24);
  border-radius: 12px;
  background: var(--uin-primary-quiet);
  color: var(--uin-primary-dark);
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.78rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.qr-scanner-frame {
  position: relative;
  min-height: 420px;
  overflow: hidden;
  border-radius: 18px;
  background: #0b2f25;
}

.qr-scanner-frame video {
  width: 100%;
  height: 420px;
  display: block;
  object-fit: cover;
}

.qr-scanner-corners {
  position: absolute;
  inset: 50%;
  width: min(62vw, 260px);
  height: min(62vw, 260px);
  transform: translate(-50%, -50%);
  border: 3px solid rgba(255, 246, 216, 0.88);
  border-radius: 18px;
  box-shadow: 0 0 0 999px rgba(4, 35, 27, 0.36);
}

.qr-scanner-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

@media (max-width: 991.98px) {
  main {
    padding: 1.25rem !important;
  }

  .navbar {
    min-height: 60px;
    padding-left: 1rem !important;
    padding-right: 1rem !important;
  }

  .navbar .ms-auto {
    gap: 0.5rem !important;
    min-width: 0;
  }

  .navbar .dropdown-menu {
    position: absolute;
    right: 0;
    left: auto;
    max-width: calc(100vw - 1rem);
  }

  #sidebar {
    position: fixed;
    left: -248px;
    z-index: 1080;
    min-height: 100vh;
  }

  #sidebar.active {
    left: 0;
    box-shadow: 18px 0 48px rgba(8, 76, 58, 0.28);
  }

  #page-content {
    margin-left: 0;
  }

  .login-split-shell {
    grid-template-columns: 1fr;
  }

  .login-form-panel {
    min-height: 62vh;
    order: 2;
  }

  .login-media-panel {
    min-height: 38vh;
    order: 1;
  }

  .login-media-overlay h2 {
    max-width: 18ch;
  }

  .book-detail-header {
    gap: 1rem;
    flex-wrap: wrap;
  }

  .book-detail-header > div:first-child {
    min-width: 0;
  }

  .attendance-qr-card {
    position: static;
  }
}

@media (max-width: 767.98px) {
  .borrow-filter {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.5rem !important;
  }

  .borrow-filter .btn {
    width: 100%;
  }

  .borrow-table-card {
    display: none;
  }

  .borrow-mobile-list {
    display: grid;
    gap: 0.85rem;
  }

  .qr-scanner-frame,
  .qr-scanner-frame video {
    min-height: 320px;
    height: 320px;
  }

  .attendance-qr-frame {
    width: 100%;
  }

  .attendance-token-box {
    white-space: normal;
    word-break: break-all;
  }

  .qr-scanner-actions .btn {
    width: 100%;
  }
}

@media (max-width: 575.98px) {
  h3,
  .h3 {
    font-size: 1.45rem;
  }

  h4,
  .h4 {
    font-size: 1.18rem;
  }

  h5,
  .h5 {
    font-size: 1.04rem;
  }

  main {
    padding: 1rem !important;
  }

  .container-fluid {
    padding-right: 0;
    padding-left: 0;
  }

  .container-fluid > .d-flex.justify-content-between {
    flex-direction: column;
    align-items: stretch !important;
    gap: 0.75rem;
  }

  .container-fluid > .d-flex.justify-content-between .btn,
  .container-fluid > .d-flex.justify-content-between form,
  .page-actions,
  .page-actions .btn,
  .page-actions form {
    width: 100%;
  }

  .page-actions {
    justify-content: stretch;
  }

  .mobile-stack-actions,
  .mobile-stack-actions .btn,
  .mobile-stack-actions form,
  .mobile-stack-actions button {
    width: 100%;
  }

  .card-body {
    padding: 1rem !important;
  }

  .card-header {
    padding: 0.85rem 1rem !important;
  }

  .modal-dialog {
    margin: 0.75rem;
  }

  .modal-footer {
    align-items: stretch;
    flex-direction: column-reverse;
  }

  .modal-footer > * {
    width: 100%;
    margin: 0 !important;
  }

  .pagination {
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.25rem;
  }

  .table-responsive {
    border-radius: 12px;
  }

  .table-modern,
  .table-responsive > .table {
    min-width: 640px;
  }

  .table-borderless tr {
    display: grid;
    grid-template-columns: minmax(6.5rem, 40%) minmax(0, 1fr);
    gap: 0.35rem;
    padding: 0.3rem 0;
  }

  .table-borderless td {
    width: auto !important;
    padding: 0.15rem 0 !important;
  }

  .notif-item {
    align-items: flex-start !important;
    gap: 0.75rem !important;
  }

  .notif-item .d-flex.justify-content-between {
    flex-direction: column;
    gap: 0.2rem;
  }

  .notif-item .mark-read-btn {
    align-self: flex-start;
    min-width: 38px;
  }

  .profile-photo,
  .profile-photo-placeholder {
    width: 96px;
    height: 96px;
  }

  .stat-card .card-body {
    min-height: 94px;
  }

  .stat-card .fs-3 {
    font-size: 1.55rem !important;
  }

  .stat-card .stat-icon {
    width: 36px;
    height: 36px;
    font-size: 1.1rem;
  }

  .login-split-page main {
    padding: 0 !important;
  }

  .book-card .card-img-top,
  .book-placeholder {
    height: 145px;
    min-height: 145px;
  }

  .book-card .card-body {
    padding: 0.8rem !important;
  }

  .book-card .book-title {
    min-height: auto;
    font-size: 0.88rem;
  }

  .book-card .book-author {
    font-size: 0.76rem;
  }

  .book-card .badge {
    font-size: 0.68rem;
  }

  .login-split-shell {
    display: flex;
    min-height: 100vh;
    flex-direction: column;
  }

  .login-form-panel {
    padding: 1.25rem;
  }

  .login-brand {
    margin-bottom: 1.7rem;
  }

  .login-form {
    padding: 1rem;
  }

  .login-media-panel {
    min-height: 32vh;
  }

  .login-media-overlay {
    inset: auto 1.25rem 1.25rem;
  }

  .login-media-overlay p {
    display: none;
  }
}