/* Curator - Layout Styles */
/* Container, Header, Navigation, and Tab Layouts */

/* ==========================================================================
   Container
   ========================================================================== */

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
}

/* Detail pages (stack, periodical) wrap their content in a surface card
   so they match the Library tab's visual depth */
.container.detail-page {
  background: var(--surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
}

/* On detail pages, stretch the surface card to fill remaining viewport height.
   The breadcrumb nav is ~44px; subtract that plus the container's top margin (12px). */
.detail-body .container.detail-page {
  margin-top: 12px;
  min-height: calc(100vh - 104px);
}

/* ==========================================================================
   Header
   ========================================================================== */

header {
  background: var(--surface);
  padding: 12px 32px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  margin-bottom: 12px;
  text-align: center;
  max-height: 300px;
  overflow: hidden;
}

header h1 {
  color: var(--primary-color);
  margin-bottom: 0;
  margin-top: 0;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

header p {
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 400;
  margin: 0;
}

.header-logout {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-stats {
  position: absolute;
  left: 0;
  top: 0;
  display: flex;
  gap: 12px;
}

.stat-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--surface-variant);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.1px;
  transition: all 0.2s ease;
}

.stat-badge:hover {
  background: var(--border-color);
  transform: translateX(2px);
}

.stat-icon {
  font-size: 16px;
  display: flex;
  align-items: center;
}

.header-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  flex: 1;
}

.coin-container {
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: 1000px;
}

.coin-emoji {
  display: inline-block;
  font-size: 3em;
  animation: coin-flip-once 1.5s ease-in-out;
  filter: drop-shadow(0 4px 12px rgba(var(--primary-rgb), 0.4))
    drop-shadow(0 8px 16px rgba(0, 0, 0, 0.3));
  transition: all 0.3s ease;
}

.coin-emoji:hover {
  animation: coin-flip 1s ease-in-out infinite;
  filter: drop-shadow(0 4px 20px rgba(var(--primary-rgb), 0.8))
    drop-shadow(0 8px 24px rgba(var(--primary-rgb), 0.4))
    drop-shadow(0 12px 32px rgba(0, 0, 0, 0.4));
  transform: scale(1.05);
}

@keyframes coin-flip-once {
  0% {
    transform: rotateY(0deg);
  }

  50% {
    transform: rotateY(180deg);
  }

  100% {
    transform: rotateY(360deg);
  }
}

@keyframes coin-float {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-12px);
  }
}

@keyframes coin-flip {
  0%,
  100% {
    transform: rotateY(0deg);
  }

  50% {
    transform: rotateY(180deg);
  }
}

.logout-btn {
  position: absolute;
  top: 0;
  right: 0;
  padding: 8px 16px;
  background: var(--surface-variant);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: 500;
  letter-spacing: 0.1px;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s ease;
}

.logout-btn:hover {
  background: var(--border-color);
}

/* ==========================================================================
   Breadcrumb (main page)
   ========================================================================== */

#main-breadcrumb {
  position: sticky;
  top: 0;
  z-index: 100;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0;
  background: var(--background);
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  transition:
    max-height 0.3s ease,
    opacity 0.3s ease,
    background 0.3s ease,
    box-shadow 0.3s ease,
    padding 0.3s ease;
}

/* ==========================================================================
   Header collapse on scroll
   ========================================================================== */

header,
nav:not(.breadcrumb) {
  transition: all 0.3s ease;
}

/* When scrolled — hide the header & nav, keep only breadcrumb sticky */
.header-collapsed header {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  margin-bottom: 0;
  opacity: 0;
  overflow: hidden;
  box-shadow: none;
}

.header-collapsed nav:not(.breadcrumb) {
  max-height: 0;
  padding: 0;
  margin-bottom: 0;
  opacity: 0;
  overflow: hidden;
  box-shadow: none;
}

.header-collapsed #main-breadcrumb {
  max-height: 50px;
  opacity: 1;
  padding: 12px 24px;
  background: var(--surface);
  border-radius: 0 0 12px 12px;
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   Navigation
   ========================================================================== */

nav:not(.breadcrumb) {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  background: var(--surface);
  padding: 8px;
  border-radius: var(--radius-xl); /* M3 fully rounded container */
  box-shadow: var(--shadow-sm);
}

.nav-btn {
  flex: 1;
  padding: 12px 24px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: var(--radius-xl); /* Pill shape for active indicators */
  cursor: pointer;
  font-size: var(--font-size-sm);
  font-weight: 500; /* M3 label-large */
  letter-spacing: 0.1px;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.nav-icon {
  font-size: 1.1em;
}

.nav-text {
  white-space: nowrap;
}

.nav-btn:hover {
  background: var(--surface-variant);
  color: var(--text-primary);
}

.nav-btn.active {
  background: var(--primary-color);
  color: var(--on-primary);
  box-shadow: var(--shadow-sm); /* Added small shadow back */
}

/* ==========================================================================
   Tabs
   ========================================================================== */

.tab {
  display: none;
  padding: 0;
  overflow-x: hidden;
}

.tab.active {
  display: block;
}

/* ==========================================================================
   Section Headers
   ========================================================================== */

.search-container h2,
.library-container h2,
.status-container h2,
.tracking-container h2,
.tasks-container h2,
.settings-container h2 {
  color: var(--primary-color);
  margin-bottom: 20px;
  font-size: 24px;
}

.library-header {
  margin-bottom: 40px;
}

.library-controls {
  display: flex;
  gap: 15px;
}

/* ==========================================================================
   Container Layouts
   ========================================================================== */

.search-container,
.library-container,
.tracking-container,
.tasks-container,
.queue-container,
.settings-container {
  padding: 32px;
  background: var(--surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  position: relative;
  max-width: 100%;
  box-sizing: border-box;
}

.scheduled-tasks-section,
.download-queue-section {
  margin-bottom: 30px;
}

.queue-stats {
  display: flex;
  gap: 20px;
  margin-bottom: 30px;
  padding: 15px;
  background: var(--surface-variant);
  border-radius: var(--radius-sm);
  flex-wrap: wrap;
}

/* ==========================================================================
   Queue Header (Download Queue & OCR Queue)
   ========================================================================== */

.queue-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  flex-wrap: wrap;
  gap: 10px;
}

.queue-title-section {
  flex: 0 0 auto;
}

.queue-controls {
  display: flex;
  gap: 15px;
  align-items: center;
  flex-wrap: wrap;
}

.queue-control-group {
  display: flex;
  gap: 10px;
  align-items: center;
}

.queue-select {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text-primary);
  font-size: 14px;
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url('data:image/svg+xml;charset=UTF-8,%3csvg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 24 24%22 fill=%22none%22 stroke=%22%23f0f0f0%22 stroke-width=%222%22 stroke-linecap=%22round%22 stroke-linejoin=%22round%22%3e%3cpolyline points=%226 9 12 15 18 9%22%3e%3c/polyline%3e%3c/svg%3e');
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 16px;
  padding-right: 35px;
}

/* Mobile Responsive - Queue Header */
@media (max-width: 900px) {
  .queue-header {
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 15px;
  }

  .queue-title-section {
    width: 100%;
  }

  .queue-title-section h2 {
    font-size: 20px !important;
  }

  .queue-controls {
    width: 100% !important;
    display: flex !important;
    flex-flow: column nowrap !important;
    gap: 12px !important;
  }

  .queue-control-group {
    display: flex !important;
    width: 100% !important;
    flex-wrap: nowrap !important;
    gap: 10px !important;
  }

  .queue-control-group label {
    flex-shrink: 0 !important;
    min-width: 70px !important;
    font-size: 0.85em !important;
  }

  .queue-select {
    flex: 1 !important;
    min-width: 0 !important;
    max-width: none !important;
    font-size: 13px !important;
  }

  .sort-toggle-btn {
    flex-shrink: 0 !important;
    padding: 8px 12px !important;
    font-size: 14px !important;
  }
}