/* ==========================================================================
   MyLastKey — Member PDF viewer page (built on style-index.css tokens)
   ========================================================================== */

/* Password overlay */
.password-overlay {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: linear-gradient(160deg, var(--navy-950) 0%, var(--navy-900) 55%, var(--navy-800) 100%);
  display: flex; align-items: center; justify-content: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
.password-overlay.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.password-box {
  background: rgba(255, 255, 255, 0.055);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  max-width: 420px;
  width: 90%;
  text-align: center;
  animation: mlk-fade-up 0.6s ease;
}
@keyframes mlk-fade-up { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }

.password-box .lock-icon {
  width: 76px; height: 76px;
  background: linear-gradient(135deg, var(--teal-500), var(--teal-700));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto var(--space-5);
  font-size: 30px; color: #fff;
  box-shadow: var(--shadow-glow-teal);
}
.password-box h2 { color: #fff; margin-bottom: var(--space-3); font-size: 26px; }
.password-box p { color: rgba(226, 232, 238, 0.72); margin-bottom: var(--space-6); font-size: 15px; }

.password-input-wrapper { position: relative; margin-bottom: var(--space-4); }
.password-input {
  width: 100%;
  padding: 15px 50px 15px 20px;
  border: 1.5px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.055);
  color: #fff;
  font-size: 15.5px;
  font-family: inherit;
  transition: all var(--dur-base) ease;
}
.password-input::placeholder { color: rgba(255, 255, 255, 0.4); }
.password-input:focus { outline: none; border-color: var(--teal-500); box-shadow: 0 0 0 4px rgba(36, 172, 156, 0.2); }

.password-toggle {
  position: absolute; right: 16px; top: 50%; transform: translateY(-50%);
  background: none; border: none;
  color: rgba(255, 255, 255, 0.5);
  cursor: pointer; font-size: 17px;
  transition: color var(--dur-base) ease;
}
.password-toggle:hover { color: var(--teal-400); }

.password-submit {
  width: 100%;
  padding: 15px;
  background: linear-gradient(135deg, var(--teal-500), var(--teal-700));
  border: none;
  border-radius: var(--radius-pill);
  color: #fff;
  font-size: 15.5px;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--dur-fast) ease;
  font-family: inherit;
}
.password-submit:hover { transform: translateY(-2px); box-shadow: var(--shadow-glow-teal); }

.password-error { color: #F2A79A; font-size: 14px; margin-top: var(--space-4); display: none; }
.password-error.show { display: block; animation: mlk-shake 0.5s ease; }
@keyframes mlk-shake { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-10px); } 75% { transform: translateX(10px); } }

/* PDF viewer */
.pdf-viewer-section {
  min-height: 100vh;
  background: linear-gradient(160deg, var(--navy-950) 0%, var(--navy-900) 55%, var(--navy-800) 100%);
  padding: 100px 0 60px;
}
.pdf-viewer-header { text-align: center; margin-bottom: var(--space-7); }
.pdf-viewer-header h1 { color: #fff; margin-bottom: var(--space-3); }
.pdf-viewer-header p { color: rgba(226, 232, 238, 0.7); }

.flipbook-container { max-width: 1000px; margin: 0 auto; perspective: 2000px; }
.flipbook-wrapper {
  background: rgba(255, 255, 255, 0.035);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.35);
}

.pdf-display {
  position: relative; width: 100%;
  display: flex; justify-content: center; align-items: center;
  min-height: 600px;
  background: #16222E;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.pdf-page-container { display: flex; gap: 4px; justify-content: center; align-items: center; transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1); }
.pdf-page { background: #fff; box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35); border-radius: 4px; overflow: hidden; transition: all 0.4s ease; }
.pdf-page canvas { display: block; max-width: 100%; height: auto; }
.pdf-page.turning { transform: rotateY(-10deg); transform-origin: left center; }

.pdf-controls { display: flex; justify-content: center; align-items: center; gap: var(--space-5); margin-top: var(--space-6); }
.pdf-nav-btn {
  width: 54px; height: 54px;
  border-radius: 50%;
  border: 1.5px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  font-size: 19px;
  cursor: pointer;
  transition: all var(--dur-base) ease;
  display: flex; align-items: center; justify-content: center;
}
.pdf-nav-btn:hover:not(:disabled) { background: var(--teal-500); border-color: var(--teal-500); transform: scale(1.08); box-shadow: var(--shadow-glow-teal); }
.pdf-nav-btn:disabled { opacity: 0.3; cursor: not-allowed; }

.page-indicator { background: rgba(255, 255, 255, 0.08); padding: 11px 22px; border-radius: var(--radius-pill); color: #fff; font-weight: 600; min-width: 140px; text-align: center; font-size: 14.5px; }
.page-indicator span { color: var(--teal-400); font-weight: 700; }

.zoom-controls { display: flex; justify-content: center; gap: var(--space-3); margin-top: var(--space-5); flex-wrap: wrap; }
.zoom-btn {
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.05);
  color: #fff;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--dur-base) ease;
  font-family: inherit;
}
.zoom-btn:hover { background: rgba(255, 255, 255, 0.1); border-color: var(--teal-500); }
.zoom-btn.active { background: var(--teal-600); border-color: var(--teal-600); }

.thumbnail-strip { display: flex; gap: 12px; overflow-x: auto; padding: var(--space-4) 8px; margin-top: var(--space-4); scrollbar-width: thin; scrollbar-color: var(--teal-500) rgba(255, 255, 255, 0.1); }
.thumbnail-strip::-webkit-scrollbar { height: 6px; }
.thumbnail-strip::-webkit-scrollbar-track { background: rgba(255, 255, 255, 0.1); border-radius: 3px; }
.thumbnail-strip::-webkit-scrollbar-thumb { background: var(--teal-500); border-radius: 3px; }

.thumbnail { flex-shrink: 0; width: 78px; height: 108px; border-radius: var(--radius-sm); overflow: hidden; cursor: pointer; border: 3px solid transparent; transition: all var(--dur-base) ease; background: #16222E; }
.thumbnail:hover { border-color: rgba(61, 217, 199, 0.5); transform: translateY(-4px); }
.thumbnail.active { border-color: var(--teal-500); box-shadow: var(--shadow-glow-teal); }
.thumbnail canvas { width: 100%; height: 100%; object-fit: cover; }

.pdf-loading { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 100px; color: #fff; }
.loading-spinner { width: 48px; height: 48px; border: 4px solid rgba(255, 255, 255, 0.1); border-top-color: var(--teal-500); border-radius: 50%; animation: mlk-spin 1s linear infinite; margin-bottom: var(--space-5); }
@keyframes mlk-spin { to { transform: rotate(360deg); } }

.fullscreen-btn {
  position: absolute; top: 16px; right: 16px;
  width: 42px; height: 42px;
  border-radius: var(--radius-sm);
  border: none;
  background: rgba(0, 0, 0, 0.5);
  color: #fff;
  cursor: pointer;
  transition: all var(--dur-base) ease;
  z-index: 10;
}
.fullscreen-btn:hover { background: var(--teal-500); }

.page-turn-left { animation: mlk-turn-left 0.6s ease forwards; }
.page-turn-right { animation: mlk-turn-right 0.6s ease forwards; }
@keyframes mlk-turn-left { 0% { transform: perspective(1000px) rotateY(0); } 100% { transform: perspective(1000px) rotateY(-90deg); } }
@keyframes mlk-turn-right { 0% { transform: perspective(1000px) rotateY(0); } 100% { transform: perspective(1000px) rotateY(90deg); } }

.pdf-error { text-align: center; padding: 60px; color: rgba(226, 232, 238, 0.7); }
.pdf-error i { font-size: 56px; color: #F2A79A; margin-bottom: var(--space-5); }

@media (max-width: 768px) {
  .password-box { padding: var(--space-6) var(--space-5); }
  .flipbook-wrapper { padding: var(--space-4); border-radius: var(--radius-lg); }
  .pdf-display { min-height: 400px; }
  .pdf-nav-btn { width: 46px; height: 46px; }
  .thumbnail { width: 58px; height: 82px; }
}