:root{--bg-primary:#0a0a0f;--bg-secondary:#12121a;--bg-tertiary:#1a1a24;--glass-bg:rgba(255,255,255,0.04);--glass-border:rgba(255,255,255,0.08);--glass-hover:rgba(255,255,255,0.07);--text-primary:#f3f4f6;--text-secondary:#9ca3af;--text-muted:#6b7280;--accent:#6366f1;--accent-2:#8b5cf6;--accent-glow:rgba(99,102,241,0.3);--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--info:#3b82f6;--radius:14px;--radius-lg:20px;--shadow:0 8px 32px rgba(0,0,0,0.4)}
[data-theme="light"]{--bg-primary:#f4f6fb;--bg-secondary:#fff;--bg-tertiary:#eef1f7;--glass-bg:rgba(255,255,255,0.7);--glass-border:rgba(0,0,0,0.08);--glass-hover:rgba(0,0,0,0.03);--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--shadow:0 8px 32px rgba(15,23,42,0.08)}
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Inter',Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;overflow-x:hidden;transition:background .3s,color .3s}
body::before{content:'';position:fixed;inset:0;background:radial-gradient(1000px 600px at 10% -10%,rgba(99,102,241,0.15),transparent 50%),radial-gradient(900px 500px at 110% 10%,rgba(139,92,246,0.12),transparent 50%),radial-gradient(800px 500px at 50% 120%,rgba(59,130,246,0.08),transparent 50%);pointer-events:none;z-index:-1}
.glass{background:var(--glass-bg);backdrop-filter:blur(20px) saturate(140%);-webkit-backdrop-filter:blur(20px) saturate(140%);border:1px solid var(--glass-border);border-radius:var(--radius-lg);box-shadow:var(--shadow)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 22px;font-size:14px;font-weight:600;border-radius:10px;border:none;cursor:pointer;transition:all .2s;text-decoration:none;font-family:inherit;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 4px 16px var(--accent-glow)}
.btn-primary:hover:not(:disabled){transform:translateY(-1px);box-shadow:0 6px 22px var(--accent-glow)}
.btn-ghost{background:var(--glass-bg);color:var(--text-primary);border:1px solid var(--glass-border)}
.btn-ghost:hover:not(:disabled){background:var(--glass-hover);border-color:var(--accent)}
.btn-danger{background:linear-gradient(135deg,#ef4444,#dc2626);color:#fff}
.btn-success{background:linear-gradient(135deg,#10b981,#059669);color:#fff}
.btn-sm{padding:7px 14px;font-size:13px}
.btn-block{width:100%}
.btn:disabled{opacity:.55;cursor:not-allowed}
.input{width:100%;padding:12px 15px;background:var(--bg-tertiary);border:1px solid var(--glass-border);border-radius:10px;color:var(--text-primary);font-size:14px;font-family:inherit;transition:border-color .2s,box-shadow .2s}
.input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}
.input::placeholder{color:var(--text-muted)}
.input.invalid{border-color:#ef4444 !important;box-shadow:0 0 0 3px rgba(239,68,68,.15) !important}
.input.valid{border-color:#10b981 !important;box-shadow:0 0 0 3px rgba(16,185,129,.15) !important}
.form-group{margin-bottom:16px}
.form-label{display:block;font-size:13px;font-weight:500;color:var(--text-secondary);margin-bottom:6px}
.form-hint{display:block;color:var(--text-muted);font-size:12px;margin-top:5px;line-height:1.4}
.field-error{color:#f87171;font-size:12.5px;margin-top:6px;display:flex;align-items:flex-start;gap:6px;animation:fadeIn .2s ease}
.field-error::before{content:'⚠';flex-shrink:0;font-size:13px;line-height:1.4}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.pw-checklist{margin-top:10px;display:grid;gap:5px;padding:10px 12px;background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:10px;font-size:12.5px}
.pw-rule{display:flex;align-items:center;gap:8px;color:var(--text-muted);transition:color .2s}
.pw-rule::before{content:'○';font-size:13px;color:var(--text-muted);width:14px;text-align:center;transition:all .2s}
.pw-rule.ok{color:#34d399}
.pw-rule.ok::before{content:'✓';color:#34d399;font-weight:700}
.pw-rule.fail{color:#f87171}
.pw-rule.fail::before{content:'✕';color:#f87171;font-weight:700}
.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.auth-card{width:100%;max-width:440px;padding:40px}
.auth-logo{font-size:28px;font-weight:800;text-align:center;margin-bottom:8px;background:linear-gradient(135deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.auth-subtitle{text-align:center;color:var(--text-secondary);font-size:14px;margin-bottom:28px}
.auth-footer{text-align:center;margin-top:20px;font-size:14px;color:var(--text-secondary)}
.auth-footer a{color:var(--accent);text-decoration:none;font-weight:600}
.app-layout{display:flex;min-height:100vh}
.sidebar{width:260px;background:var(--bg-secondary);border-right:1px solid var(--glass-border);padding:24px 16px;display:flex;flex-direction:column;position:fixed;top:0;bottom:0;left:0;z-index:100;transition:transform .3s;overflow-y:auto}
.sidebar-brand{font-size:20px;font-weight:800;padding:0 12px 20px;background:linear-gradient(135deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.sidebar-nav{flex:1}
.sidebar-nav a{display:flex;align-items:center;gap:12px;padding:11px 14px;color:var(--text-secondary);text-decoration:none;border-radius:10px;font-size:14px;font-weight:500;margin-bottom:4px;transition:all .15s}
.sidebar-nav a:hover{background:var(--glass-hover);color:var(--text-primary)}
.sidebar-nav a.active{background:linear-gradient(135deg,rgba(99,102,241,.2),rgba(139,92,246,.15));color:var(--accent);border:1px solid rgba(99,102,241,.2)}
.sidebar-user{padding:14px;border-top:1px solid var(--glass-border);margin-top:12px}
.main-content{flex:1;margin-left:260px;padding:28px 32px;min-height:100vh}
.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;gap:16px;flex-wrap:wrap}
.topbar h1{font-size:26px;font-weight:700}
.menu-toggle{display:none;background:var(--glass-bg);border:1px solid var(--glass-border);color:var(--text-primary);border-radius:10px;padding:9px 12px;cursor:pointer;font-size:18px}
.grid{display:grid;gap:18px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.stat-card{padding:20px;display:flex;flex-direction:column;gap:6px}
.stat-value{font-size:30px;font-weight:800;background:linear-gradient(135deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat-label{font-size:13px;color:var(--text-secondary);font-weight:500}
.card{padding:22px}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;gap:12px;flex-wrap:wrap}
.card-title{font-size:16px;font-weight:700}
.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px}
.book-card{overflow:hidden;transition:transform .2s,box-shadow .2s;display:flex;flex-direction:column}
.book-card:hover{transform:translateY(-4px);box-shadow:0 12px 40px rgba(0,0,0,.5)}
.book-cover{aspect-ratio:3/4;background:linear-gradient(135deg,#1a1a24,#0f0f16);display:flex;align-items:center;justify-content:center;overflow:hidden;font-size:56px;opacity:.5}
.book-cover img{width:100%;height:100%;object-fit:cover;opacity:1}
.book-info{padding:16px;flex:1;display:flex;flex-direction:column;gap:6px}
.book-title{font-weight:700;font-size:15px;line-height:1.3}
.book-author{font-size:13px;color:var(--text-secondary)}
.book-category{font-size:11px;padding:3px 9px;border-radius:20px;background:rgba(99,102,241,.15);color:var(--accent);font-weight:600;align-self:flex-start}
.badge{display:inline-block;padding:4px 11px;border-radius:20px;font-size:11px;font-weight:700;text-transform:uppercase}
.badge-pending{background:rgba(245,158,11,.15);color:#fbbf24}
.badge-approved{background:rgba(16,185,129,.15);color:#34d399}
.badge-rejected{background:rgba(239,68,68,.15);color:#f87171}
.badge-cancelled{background:rgba(107,114,128,.15);color:#9ca3af}
.badge-admin{background:rgba(59,130,246,.15);color:#60a5fa}
.badge-super_admin{background:rgba(168,85,247,.18);color:#c084fc}
.badge-user{background:rgba(107,114,128,.15);color:#9ca3af}
.badge-banned{background:rgba(239,68,68,.15);color:#f87171}
.badge-locked{background:rgba(245,158,11,.15);color:#fbbf24}
.table-wrapper{overflow-x:auto;border-radius:var(--radius)}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--glass-border)}
th{font-weight:600;color:var(--text-secondary);font-size:12px;text-transform:uppercase;background:var(--glass-bg)}
tbody tr:hover{background:var(--glass-hover)}
.toast-container{position:fixed;top:20px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:10px}
.toast{padding:14px 18px;border-radius:12px;background:var(--bg-secondary);border:1px solid var(--glass-border);box-shadow:var(--shadow);min-width:280px;max-width:400px;display:flex;align-items:center;gap:12px;animation:slideIn .3s ease;font-size:14px;pointer-events:auto}
.toast.success{border-left:3px solid var(--success)}
.toast.error{border-left:3px solid var(--danger);background:linear-gradient(90deg,rgba(239,68,68,.08),var(--bg-secondary) 40%)}
.toast.info{border-left:3px solid var(--info)}
.toast.warning{border-left:3px solid var(--warning)}
@keyframes slideIn{from{transform:translateX(120%);opacity:0}to{transform:translateX(0);opacity:1}}
.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.7);backdrop-filter:blur(6px);z-index:5000;display:flex;align-items:center;justify-content:center;padding:20px}
.modal{width:100%;max-width:500px;padding:26px;max-height:90vh;overflow-y:auto}
.chat-container{display:flex;flex-direction:column;gap:10px;padding:16px;max-height:60vh;overflow-y:auto}
.chat-bubble{max-width:70%;padding:10px 14px;border-radius:14px;font-size:14px;line-height:1.5;word-wrap:break-word}
.chat-bubble.sent{align-self:flex-end;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border-bottom-right-radius:4px}
.chat-bubble.received{align-self:flex-start;background:var(--bg-tertiary);border-bottom-left-radius:4px}
.chat-time{font-size:11px;opacity:.65;margin-top:3px}
.spinner{width:34px;height:34px;border:3px solid var(--glass-border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite;margin:20px auto}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-overlay{position:fixed;inset:0;background:rgba(10,10,15,.85);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:9000}
.text-center{text-align:center}
.text-muted{color:var(--text-muted)}
.text-secondary{color:var(--text-secondary)}
.text-danger{color:var(--danger)}
.text-success{color:var(--success)}
.mt-1{margin-top:8px}.mt-2{margin-top:16px}.mt-3{margin-top:24px}
.mb-1{margin-bottom:8px}.mb-2{margin-bottom:16px}.mb-3{margin-bottom:24px}
.flex{display:flex}.flex-between{display:flex;align-items:center;justify-content:space-between}
.flex-center{display:flex;align-items:center;justify-content:center}
.gap-1{gap:8px}.gap-2{gap:16px}
.hidden{display:none!important}
.w-full{width:100%}
.sidebar-backdrop{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:99}
@media(max-width:1024px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.sidebar{transform:translateX(-100%)}.sidebar.open{transform:translateX(0)}.sidebar-backdrop.show{display:block}.main-content{margin-left:0;padding:20px 16px}.menu-toggle{display:inline-flex}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.topbar h1{font-size:20px}.auth-card{padding:28px 22px}.toast-container{left:12px;right:12px;top:12px}.toast{min-width:0}}


/* ============================================================
   READER — v2 (centered, floating toolbar, page jump)
   ============================================================ */
.reader-wrapper {
  position: fixed;
  inset: 0;
  background: #08080c;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  user-select: none;
  -webkit-user-select: none;
  overflow: hidden;
}

.reader-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 16px;
  background: rgba(18, 18, 26, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  z-index: 20;
  flex-shrink: 0;
}
.reader-topbar-left,
.reader-topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}
.reader-book-title {
  font-weight: 600;
  font-size: 14px;
  color: var(--text-primary);
  max-width: 40vw;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.reader-scroll {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 30px 20px 120px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  scroll-behavior: smooth;
}

.pdf-page-wrapper {
  position: relative;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.7);
  background: #fff;
  max-width: 900px;
  width: 900px;
  flex-shrink: 0;
  overflow: hidden;
  border-radius: 6px;
  display: block;
  margin: 0 auto;
}
.pdf-page-wrapper canvas {
  display: block;
  width: 100% !important;
  height: auto !important;
  pointer-events: none;
}

.watermark-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
}
.watermark-text {
  font-size: 22px;
  color: rgba(99, 102, 241, 0.24);
  font-weight: 700;
  transform: rotate(-28deg);
  text-align: center;
  line-height: 1.4;
  user-select: none;
  text-shadow: 0 0 2px rgba(0,0,0,0.15);
  padding: 20px;
  white-space: pre-line;
  letter-spacing: 1px;
  animation: floatWatermark 8s ease-in-out infinite;
}
@keyframes floatWatermark {
  0%, 100% { transform: rotate(-28deg) translate(0, 0); }
  25% { transform: rotate(-28deg) translate(18px, -14px); }
  50% { transform: rotate(-28deg) translate(-14px, 12px); }
  75% { transform: rotate(-28deg) translate(12px, 16px); }
}

/* Floating bottom toolbar — always visible */
.reader-bottombar {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: rgba(18, 18, 26, 0.94);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
  z-index: 30;
  opacity: 0.35;
  transition: opacity 0.25s;
}
.reader-bottombar:hover,
.reader-bottombar:focus-within {
  opacity: 1;
}

.reader-bottombar .btn-round {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.15s;
  font-family: inherit;
}
.reader-bottombar .btn-round:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.reader-bottombar .btn-round:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}
.reader-bottombar .page-input {
  width: 56px;
  padding: 6px 8px;
  text-align: center;
  background: var(--bg-tertiary);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  -moz-appearance: textfield;
}
.reader-bottombar .page-input::-webkit-outer-spin-button,
.reader-bottombar .page-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.reader-bottombar .page-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.reader-bottombar .page-total {
  font-size: 14px;
  color: var(--text-secondary);
  padding: 0 4px;
  font-weight: 500;
}
.reader-bottombar .zoom-label {
  min-width: 48px;
  text-align: center;
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 600;
}
.reader-bottombar .divider {
  width: 1px;
  height: 24px;
  background: var(--glass-border);
  margin: 0 4px;
}

/* Loading state */
.reader-loading {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: rgba(8, 8, 12, 0.9);
  z-index: 25;
}
.reader-loading p {
  color: var(--text-secondary);
  font-size: 14px;
}
.reader-loading .progress-bar {
  width: 260px;
  height: 4px;
  background: var(--bg-tertiary);
  border-radius: 2px;
  overflow: hidden;
}
.reader-loading .progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  width: 0%;
  transition: width 0.15s;
}

.reader-warning {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  text-align: center;
  display: none;
  margin: 0 20px;
}

@media (max-width: 640px) {
  .reader-bottombar {
    gap: 4px;
    padding: 8px 10px;
    bottom: 12px;
  }
  .reader-bottombar .btn-round { width: 36px; height: 36px; font-size: 14px; }
  .reader-bottombar .page-input { width: 46px; font-size: 13px; }
  .reader-scroll { padding: 16px 10px 110px; }
  .watermark-text { font-size: 14px; }
  .reader-book-title { max-width: 25vw; font-size: 12px; }
}


@media (max-width: 960px) {
  .pdf-page-wrapper {
    width: 100%;
    max-width: 900px;
  }
}

.page-placeholder { width: 100%; padding: 60px 20px; text-align: center; background: linear-gradient(135deg, #15151d, #0c0c12); color: #6b7280; font-size: 13px; border-radius: 4px; }


/* ============================================================
   HAMBURGER MENU (mobile only)
   ============================================================ */
.hamburger-btn {
  display: none;
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 300;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: background 0.15s, transform 0.15s;
}
.hamburger-btn:hover { background: var(--glass-hover); }
.hamburger-btn:active { transform: scale(0.95); }

.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(2px);
  z-index: 199;
  opacity: 0;
  transition: opacity 0.25s;
}
.sidebar-backdrop.show {
  display: block;
  opacity: 1;
}

@media (max-width: 768px) {
  /* Show hamburger button */
  .hamburger-btn { display: flex; }

  /* Sidebar slides in from left, hidden by default */
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 200;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.5);
  }
  .sidebar.open {
    transform: translateX(0);
  }

  /* Main content gets top padding so the hamburger doesn't overlap titles */
  .main-content {
    margin-left: 0 !important;
    padding-top: 68px !important;
  }

  /* Topbar shifts down/right on mobile */
  .topbar {
    padding-left: 54px;
  }
}

/* ============================================================
   HIDE / SHOW ADMIN PANEL
   ============================================================ */
.panel-toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 8px 12px;
  margin-top: 8px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--text-secondary);
  font-size: 12px;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s;
}
.panel-toggle-btn:hover {
  background: var(--glass-hover);
  color: var(--text-primary);
  border-color: var(--accent);
}
.panel-toggle-btn.hidden-state {
  color: var(--warning);
  border-color: rgba(245, 158, 11, 0.3);
}
.panel-toggle-btn.hidden-state:hover {
  background: rgba(245, 158, 11, 0.1);
}


/* reader-zoom-fix */
.pdf-page-wrapper {
  transition: transform 0.15s ease-out;
  will-change: transform;
}
.reader-scroll {
  overflow-x: auto;
}


/* ============ GLOBAL PROTECTIONS ============ */
body {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}
input, textarea, [contenteditable="true"] {
  -webkit-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
  user-select: text;
}
img {
  -webkit-user-drag: none;
  user-drag: none;
  pointer-events: none;
}
@media print {
  body * { display: none !important; }
  body::after { content: 'Printing is disabled.'; display: block; text-align: center; padding: 40px; font-size: 18px; color: #333; }
}
/* ============ END GLOBAL PROTECTIONS ============ */


/* ============ COMING SOON CARD ============ */
.book-card.coming {
  position: relative;
}
.book-card.coming .book-cover-wrap {
  filter: grayscale(0.9) brightness(0.55);
  position: relative;
}
.book-card.coming .book-cover-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(30,30,40,.4), rgba(20,20,30,.75));
  pointer-events: none;
}
.book-card.coming .card-title,
.book-card.coming .card-meta,
.book-card.coming .card-desc {
  opacity: .6;
}
.book-card.coming:hover .book-cover-wrap {
  filter: grayscale(0.7) brightness(0.7);
}
.book-card.coming:hover {
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(245, 158, 11, 0.35);
}
.book-card.coming .status-tag.coming {
  background: rgba(245, 158, 11, 0.95);
  box-shadow: 0 0 12px rgba(245, 158, 11, 0.55);
}
/* ============ END COMING SOON CARD ============ */
NaN

/* ============ SCROLLBAR GUTTER ============ */
/* Force the page to always show a scrollbar track on the right,
   even when the content fits. This keeps the styled bar visible
   everywhere and prevents layout shift between pages. */
html {
  
  overflow-x: hidden;
}

/* Slightly larger width on the page-level scrollbar so it's easier
   to see (in-page scrollbars stay at 4-6px). */
html::-webkit-scrollbar {
  width: 8px;
}
html::-webkit-scrollbar-track {
  background: rgba(99, 102, 241, 0.05);
}
html::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  border-radius: 4px;
  box-shadow: 0 0 8px var(--accent-glow);
}
html::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--accent-2), var(--accent));
  box-shadow: 0 0 12px var(--accent-glow);
}
/* ============ END SCROLLBAR GUTTER ============ */


/* ============ GLASS SCROLLBARS ============ */
/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.18) transparent;
}

/* WebKit / Blink — glass pill style */
*::-webkit-scrollbar {
  width: 8px;
  height: 8px;
  background: transparent;
}

*::-webkit-scrollbar-track {
  background: transparent;
}

*::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  border: 2px solid transparent;
  background-clip: padding-box;
  backdrop-filter: blur(8px);
  transition: background 0.2s ease, transform 0.2s ease;
}

*::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.28);
  background-clip: padding-box;
}

*::-webkit-scrollbar-thumb:active {
  background: rgba(255, 255, 255, 0.4);
  background-clip: padding-box;
}

*::-webkit-scrollbar-corner {
  background: transparent;
}

/* In-page areas — even slimmer */
.book-picker-chips::-webkit-scrollbar,
.book-picker-list::-webkit-scrollbar,
.chat-container::-webkit-scrollbar,
.table-wrapper::-webkit-scrollbar,
.sidebar::-webkit-scrollbar,
.reader-scroll::-webkit-scrollbar,
.reader-pages::-webkit-scrollbar,
textarea::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

/* Force page-level scrollbar to always be present (gutter) */
html {
  
  overflow-x: hidden;
}

html::-webkit-scrollbar {
  width: 10px;
}

html::-webkit-scrollbar-track {
  background: transparent;
}

html::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.13);
  border-radius: 999px;
  border: 2px solid transparent;
  background-clip: padding-box;
  backdrop-filter: blur(8px);
}

html::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.26);
  background-clip: padding-box;
}

/* Light theme adjustments */
[data-theme="light"] *::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.18);
  background-clip: padding-box;
}
[data-theme="light"] *::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.3);
  background-clip: padding-box;
}
[data-theme="light"] html::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.18);
  background-clip: padding-box;
}
[data-theme="light"] {
  scrollbar-color: rgba(0, 0, 0, 0.18) transparent;
}
/* ============ END GLASS SCROLLBARS ============ */


/* ============ GLASS SCROLLBARS ============ */
/* Single source of truth — only html and specific scrollable
   elements get styled. Avoids double scrollbars. */

/* Firefox */
html, .book-picker-chips, .book-picker-list, .chat-container,
.table-wrapper, .sidebar, .reader-scroll, .reader-pages, textarea {
  scrollbar-width: thin;
  scrollbar-color: rgba(139, 92, 246, 0.4) transparent;
}

/* WebKit / Blink — page-level scrollbar (10px) */
html::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
html::-webkit-scrollbar-track {
  background: transparent;
}
html::-webkit-scrollbar-thumb {
  background: linear-gradient(
    180deg,
    rgba(99, 102, 241, 0.45),
    rgba(139, 92, 246, 0.45)
  );
  border: 2px solid transparent;
  background-clip: padding-box;
  border-radius: 999px;
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
  transition: background 0.2s ease, box-shadow 0.2s ease;
}
html::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(
    180deg,
    rgba(99, 102, 241, 0.7),
    rgba(139, 92, 246, 0.7)
  );
  background-clip: padding-box;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12), 0 0 12px rgba(99, 102, 241, 0.4);
}
html::-webkit-scrollbar-thumb:active {
  background: linear-gradient(
    180deg,
    rgba(99, 102, 241, 0.9),
    rgba(139, 92, 246, 0.9)
  );
  background-clip: padding-box;
}
html::-webkit-scrollbar-corner {
  background: transparent;
}

/* WebKit — in-page scrollable areas (6px, slimmer) */
.book-picker-chips::-webkit-scrollbar,
.book-picker-list::-webkit-scrollbar,
.chat-container::-webkit-scrollbar,
.table-wrapper::-webkit-scrollbar,
.sidebar::-webkit-scrollbar,
.reader-scroll::-webkit-scrollbar,
.reader-pages::-webkit-scrollbar,
textarea::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
.book-picker-chips::-webkit-scrollbar-track,
.book-picker-list::-webkit-scrollbar-track,
.chat-container::-webkit-scrollbar-track,
.table-wrapper::-webkit-scrollbar-track,
.sidebar::-webkit-scrollbar-track,
.reader-scroll::-webkit-scrollbar-track,
.reader-pages::-webkit-scrollbar-track,
textarea::-webkit-scrollbar-track {
  background: transparent;
}
.book-picker-chips::-webkit-scrollbar-thumb,
.book-picker-list::-webkit-scrollbar-thumb,
.chat-container::-webkit-scrollbar-thumb,
.table-wrapper::-webkit-scrollbar-thumb,
.sidebar::-webkit-scrollbar-thumb,
.reader-scroll::-webkit-scrollbar-thumb,
.reader-pages::-webkit-scrollbar-thumb,
textarea::-webkit-scrollbar-thumb {
  background: linear-gradient(
    180deg,
    rgba(99, 102, 241, 0.42),
    rgba(139, 92, 246, 0.42)
  );
  border: 1.5px solid transparent;
  background-clip: padding-box;
  border-radius: 999px;
  backdrop-filter: blur(10px) saturate(160%);
  -webkit-backdrop-filter: blur(10px) saturate(160%);
  transition: background 0.2s ease;
}
.book-picker-chips::-webkit-scrollbar-thumb:hover,
.book-picker-list::-webkit-scrollbar-thumb:hover,
.chat-container::-webkit-scrollbar-thumb:hover,
.table-wrapper::-webkit-scrollbar-thumb:hover,
.sidebar::-webkit-scrollbar-thumb:hover,
.reader-scroll::-webkit-scrollbar-thumb:hover,
.reader-pages::-webkit-scrollbar-thumb:hover,
textarea::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(
    180deg,
    rgba(99, 102, 241, 0.7),
    rgba(139, 92, 246, 0.7)
  );
  background-clip: padding-box;
}

/* Light theme — darker glass */
[data-theme="light"] html::-webkit-scrollbar-thumb {
  background: linear-gradient(
    180deg,
    rgba(99, 102, 241, 0.35),
    rgba(139, 92, 246, 0.35)
  );
  background-clip: padding-box;
}
[data-theme="light"] html::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(
    180deg,
    rgba(99, 102, 241, 0.6),
    rgba(139, 92, 246, 0.6)
  );
  background-clip: padding-box;
}
[data-theme="light"] html,
[data-theme="light"] .book-picker-chips,
[data-theme="light"] .book-picker-list,
[data-theme="light"] .chat-container,
[data-theme="light"] .table-wrapper,
[data-theme="light"] .sidebar,
[data-theme="light"] .reader-scroll,
[data-theme="light"] .reader-pages,
[data-theme="light"] textarea {
  scrollbar-color: rgba(99, 102, 241, 0.4) transparent;
}
/* ============ END GLASS SCROLLBARS ============ */


/* ============ MOBILE-V2 ============ */

/* ---- Base body: kill horizontal overflow everywhere ---- */
html, body {
  max-width: 100%;
  overflow-x: hidden;
}
* {
  min-width: 0;
}

/* ---- Phones (≤ 640px) ---- */
@media (max-width: 640px) {

  /* Layout */
  .app-layout { display: block; }
  .main-content {
    margin-left: 0 !important;
    padding: 72px 12px 24px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box;
  }
  .topbar {
    padding-left: 0 !important;
    margin-bottom: 16px;
    gap: 8px;
  }
  .topbar h1 { font-size: 19px !important; }

  /* Cards */
  .glass, .card, .glass.card {
    padding: 14px !important;
    border-radius: 14px !important;
    width: 100%;
    box-sizing: border-box;
  }
  .card-header {
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
  }
  .card-title { font-size: 15px; }

  /* Grids stack vertically */
  .grid, .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  /* Book grid — 2 per row on phones */
  .book-grid {
    display: grid !important;
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 10px !important;
  }
  .book-card {
    display: flex;
    flex-direction: column;
  }
  .book-cover-wrap {
    aspect-ratio: 2/3;
  }
  .card-body {
    padding: 10px 10px 12px !important;
    gap: 4px;
  }
  .card-title {
    font-size: 12.5px !important;
    line-height: 1.25;
  }
  .card-meta { font-size: 11px !important; gap: 5px; }
  .cat-pill { font-size: 9px !important; padding: 2px 6px; }
  .card-desc {
    font-size: 11px !important;
    -webkit-line-clamp: 2;
  }
  .card-action { padding-top: 6px; }
  .card-action .btn {
    padding: 6px 10px !important;
    font-size: 12px !important;
    width: 100%;
  }
  .status-tag {
    font-size: 9px !important;
    padding: 3px 6px !important;
    border-radius: 5px !important;
  }

  /* Books toolbar stacks */
  .toolbar {
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
    padding: 12px !important;
  }
  .toolbar-search, .toolbar-select {
    width: 100% !important;
    max-width: none !important;
    flex: 1 1 100% !important;
    font-size: 14px !important;
  }
  .results-line { margin-bottom: 10px !important; }

  /* Tables scroll horizontally */
  .table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 0 -14px;
    padding: 0 14px;
  }
  .table-wrapper table {
    font-size: 12px;
    min-width: 640px;
  }
  .table-wrapper th,
  .table-wrapper td {
    padding: 8px 10px;
    white-space: nowrap;
  }

  /* Forms */
  .form-group { margin-bottom: 12px; }
  .form-label { font-size: 12px; }
  input, select, textarea, .input {
    font-size: 16px !important; /* prevent iOS zoom */
    padding: 10px 12px !important;
  }
  .btn { padding: 10px 16px !important; font-size: 13px !important; }
  .btn-block { width: 100%; }

  /* Auth pages */
  .auth-container { padding: 16px; align-items: flex-start; padding-top: 40px; }
  .auth-card {
    padding: 24px 20px !important;
    margin: 0 !important;
    border-radius: 16px !important;
    max-width: 100% !important;
  }
  .auth-logo { font-size: 22px !important; }
  .auth-subtitle { font-size: 13px !important; margin-bottom: 20px; }

  /* Stat cards — 2 per row */
  .stat-card {
    padding: 14px !important;
  }
  .stat-value { font-size: 22px !important; }
  .stat-label { font-size: 11px !important; }

  /* Fix stats grid — 2 cols on phone */
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }

  /* Modal */
  .modal-backdrop { padding: 12px; align-items: flex-end; }
  .glass.modal, .modal {
    padding: 18px !important;
    max-width: 100% !important;
    max-height: 92vh;
    border-radius: 16px 16px 0 0;
    width: 100%;
  }

  /* Chips / book picker */
  .book-picker-box { padding: 8px 10px; }
  .book-picker-input { font-size: 14px !important; }
  .book-chip { font-size: 11px; padding: 3px 8px 3px 9px; }
  .book-picker-dropdown {
    max-height: 300px;
    border-radius: 10px;
  }
  .book-picker-item { padding: 10px 12px; font-size: 13px; }

  /* Messages chat */
  .chat-bubble { max-width: 90% !important; font-size: 13px; }

  /* Sidebar drawer */
  .sidebar {
    width: 240px;
    transform: translateX(-100%);
    transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 200;
  }
  .sidebar.open { transform: translateX(0); }

  /* Hamburger */
  .hamburger-btn {
    display: flex !important;
    top: 12px;
    left: 12px;
    width: 40px;
    height: 40px;
  }

  /* Reader */
  .reader-topbar { padding: 8px 12px; }
  .reader-book-title { font-size: 12px; max-width: 40vw; }
  .reader-bottombar {
    bottom: 8px;
    padding: 8px 10px;
    gap: 4px;
  }
  .reader-bottombar .btn-round {
    width: 34px; height: 34px; font-size: 13px;
  }
  .reader-bottombar .page-input { width: 44px; font-size: 12px; padding: 5px 6px; }
  .reader-bottombar .page-total { font-size: 12px; }
  .reader-scroll { padding: 12px 8px 100px; gap: 12px; }

  /* Tables in admin get full width */
  #panel-books .table-wrapper table,
  #panel-users .table-wrapper table,
  #panel-requests .table-wrapper table,
  #panel-logs .table-wrapper table {
    min-width: 700px;
  }

  /* Admin filters: single column */
  #panel-books > .glass.card > div[style*="grid-template-columns"] {
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
  }
}

/* ---- Small phones (≤ 400px) ---- */
@media (max-width: 400px) {
  .main-content { padding: 68px 10px 20px !important; }
  .topbar h1 { font-size: 17px !important; }

  .book-grid { gap: 8px !important; }
  .card-body { padding: 8px !important; }
  .card-title { font-size: 12px !important; }
  .card-action .btn { font-size: 11px !important; padding: 5px 8px !important; }

  .stat-value { font-size: 20px !important; }
  .auth-card { padding: 20px 16px !important; }
  .auth-logo { font-size: 20px !important; }
}

/* ---- Tablets (641px – 1024px) ---- */
@media (min-width: 641px) and (max-width: 1024px) {
  .book-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr)) !important;
  }
  .grid-4 { grid-template-columns: repeat(2, 1fr) !important; }
  .main-content { padding: 20px 18px !important; margin-left: 0 !important; }
  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .sidebar.open { transform: translateX(0); }
  .hamburger-btn { display: flex !important; }
}
/* ============ END MOBILE-V2 ============ */