/* ============================================================================
   THINKRIGHT - STUDENT SYLLABUS LIBRARY STYLES (css/syllabus.css)
   Clean, unboxed typography aligned with ThinkRight Design System
   ============================================================================ */

.page-syllabus {
  overflow-x: hidden;
  background: var(--surface-bg);
  color: var(--text-primary);
  font-family: var(--font-body, 'Manrope', system-ui, -apple-system, sans-serif);
}

/* Hide redundant navbar search icon on Syllabus page since page has dedicated search bar */
.page-syllabus .tr-navbar__search-toggle,
.page-syllabus .tr-navbar__search-row,
.page-syllabus #tr-navbar-search-toggle,
.page-syllabus #tr-navbar-search-row {
  display: none !important;
}

.syllabus-container {
  width: 100%;
  max-width: 1160px;
  margin: 1.5rem auto 5rem;
  padding: 0 1.25rem;
  box-sizing: border-box;
}

.syllabus-main {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  min-width: 0;
}

/* ----------------------------------------------------------------------------
   1. CLEAN UNBOXED HERO SECTION
   ---------------------------------------------------------------------------- */
.page-syllabus .welcome-section.syllabus-hero {
  position: relative;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  padding: 0.5rem 0 0 !important;
  margin: 0 !important;
  text-align: left !important;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.syllabus-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-primary, #1d4ed8);
  font-family: var(--font-heading, 'Space Grotesk', sans-serif);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.45rem;
  background: transparent;
  border: none;
  padding: 0;
}

html[data-theme='dark'] .syllabus-eyebrow {
  color: #60a5fa;
}

.syllabus-pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: syllabusPulse 1.8s infinite;
}

@keyframes syllabusPulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.page-syllabus .welcome-section .syllabus-title {
  font-family: var(--font-heading, 'Space Grotesk', sans-serif);
  font-size: clamp(2rem, 3.8vw, 2.75rem);
  font-weight: 800;
  color: var(--text-primary);
  margin: 0 0 0.55rem 0;
  line-height: 1.15;
  letter-spacing: -0.025em;
}

.page-syllabus .welcome-section .syllabus-subtitle {
  color: var(--text-secondary);
  font-size: 1.02rem;
  line-height: 1.6;
  max-width: 680px;
  margin: 0 !important;
}

/* ----------------------------------------------------------------------------
   2. STREAM FILTER TABS & LIVE SEARCH BAR
   ---------------------------------------------------------------------------- */
.syllabus-filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.syllabus-stream-tabs {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--surface-subtle);
  padding: 5px;
  border-radius: 14px;
  border: 1px solid var(--line-subtle);
  overflow-x: auto;
  max-width: 100%;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.syllabus-stream-tabs::-webkit-scrollbar {
  display: none;
}

html[data-theme='dark'] .syllabus-stream-tabs {
  background: rgba(17, 24, 39, 0.9);
  border-color: rgba(255, 255, 255, 0.08);
}

.syllabus-stream-tab {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 1rem;
  border-radius: 10px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-heading, 'Space Grotesk', sans-serif);
  font-size: 0.86rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.18s ease;
}

.syllabus-stream-tab i {
  font-size: 0.88rem;
}

.syllabus-stream-tab:hover {
  color: var(--text-primary);
}

.syllabus-stream-tab.is-active {
  background: var(--accent-primary, #1d4ed8);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(29, 78, 216, 0.28);
}

/* Search Box */
.page-syllabus .tr-syllabus-search-wrap {
  position: relative;
  min-width: 250px;
  max-width: 340px;
  flex: 1;
  margin: 0;
}

.page-syllabus .tr-syllabus-search-label {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.page-syllabus .tr-syllabus-search-field {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.page-syllabus .tr-syllabus-search-field .tr-navbar__search-field-icon {
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.88rem;
  pointer-events: none;
  display: inline-flex;
  align-items: center;
}

.page-syllabus .tr-syllabus-search-input {
  width: 100%;
  height: 44px;
  padding: 0.65rem 2.4rem 0.65rem 2.5rem;
  border-radius: 12px;
  border: 1px solid var(--line-subtle);
  background: var(--surface-bg);
  color: var(--text-primary);
  font-family: var(--font-body, 'Manrope', sans-serif);
  font-size: 0.88rem;
  font-weight: 500;
  box-sizing: border-box;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

html[data-theme='dark'] .page-syllabus .tr-syllabus-search-input {
  background: rgba(17, 24, 39, 0.85);
  border-color: rgba(255, 255, 255, 0.1);
  color: #f8fafc;
}

.page-syllabus .tr-syllabus-search-input:focus {
  outline: none;
  border-color: var(--accent-primary, #1d4ed8);
  box-shadow: 0 0 0 3px rgba(29, 78, 216, 0.15);
}

.syllabus-search-clear {
  position: absolute;
  right: 0.65rem;
  top: 50%;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  cursor: pointer;
}

.syllabus-search-clear:hover {
  color: var(--text-primary);
}

.syllabus-search-clear[hidden] {
  display: none !important;
}

/* ----------------------------------------------------------------------------
   3. SYLLABUS DECK & MODERN SUBJECT CARDS
   ---------------------------------------------------------------------------- */
.syllabus-section {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin: 0;
}

.syllabus-deck-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.syllabus-deck-title {
  font-family: var(--font-heading, 'Space Grotesk', sans-serif);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0;
}

/* Unboxed count text */
.syllabus-count-text {
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
  background: transparent;
  border: none;
  padding: 0;
}

/* Grid */
.page-syllabus .syllabus-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1.25rem;
  width: 100%;
}

/* Individual Syllabus Card */
.page-syllabus .syllabus-item {
  position: relative;
  background: var(--surface-bg);
  border: 1px solid var(--line-subtle);
  border-radius: 18px;
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  transition: border-color 0.18s ease;
  box-shadow: 0 4px 16px rgba(16, 24, 40, 0.03);
  box-sizing: border-box;
  transform: none !important;
}

.page-syllabus .syllabus-item[hidden],
.page-syllabus .syllabus-item.is-stream-hidden {
  display: none !important;
}

html[data-theme='dark'] .page-syllabus .syllabus-item {
  background: rgba(17, 24, 39, 0.75);
  border-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}

.page-syllabus .syllabus-item:hover {
  transform: none !important;
  border-color: var(--subject-accent, var(--accent-primary, #1d4ed8));
}

html[data-theme='dark'] .page-syllabus .syllabus-item:hover {
  transform: none !important;
  border-color: var(--subject-accent, #60a5fa);
}

/* Top bar of Card: Icon Pod + Unboxed Stream Label */
.page-syllabus .syllabus-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-bottom: 1rem;
}

.page-syllabus .syllabus-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.28rem;
  background: var(--subject-bg, rgba(29, 78, 216, 0.1)) !important;
  color: var(--subject-accent, var(--accent-primary, #1d4ed8)) !important;
  flex-shrink: 0;
  box-shadow: none !important;
  transform: none !important;
}

.page-syllabus .syllabus-item:hover .syllabus-icon {
  transform: none !important;
  background: var(--subject-bg, rgba(29, 78, 216, 0.14)) !important;
  color: var(--subject-accent, var(--accent-primary, #1d4ed8)) !important;
}

/* Unboxed Stream Label */
.syllabus-stream-label {
  font-family: var(--font-heading, 'Space Grotesk', sans-serif);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  background: transparent;
  border: none;
  padding: 0;
}

/* Title & Description */
.page-syllabus .syllabus-item h3 {
  font-family: var(--font-heading, 'Space Grotesk', sans-serif);
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
  margin: 0 0 0.4rem 0;
  line-height: 1.25;
}

.page-syllabus .syllabus-description {
  color: var(--text-secondary);
  font-size: 0.86rem;
  line-height: 1.55;
  margin: 0 0 1.2rem 0;
  flex: 1;
}

/* Card Footer Actions: Unboxed Practice Link on Left + Primary Open PDF Button on Right */
.syllabus-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  width: 100%;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line-subtle);
  margin-top: auto;
}

html[data-theme='dark'] .syllabus-card__footer {
  border-top-color: rgba(255, 255, 255, 0.08);
}

/* Unboxed Practice Link */
.syllabus-practice-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.38rem;
  padding: 0.35rem 0;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-heading, 'Space Grotesk', sans-serif);
  font-size: 0.84rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.16s ease;
}

.syllabus-practice-btn i {
  color: var(--subject-accent, var(--accent-primary, #1d4ed8));
  font-size: 0.82rem;
}

.syllabus-practice-btn:hover {
  color: var(--subject-accent, var(--accent-primary, #1d4ed8));
}

html[data-theme='dark'] .syllabus-practice-btn {
  color: #cbd5e1;
}

html[data-theme='dark'] .syllabus-practice-btn:hover {
  color: #60a5fa;
}

/* Primary Open Syllabus PDF Button */
.page-syllabus .view-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.48rem;
  min-height: 40px;
  padding: 0.55rem 1.05rem;
  border-radius: 10px;
  border: 1px solid var(--accent-primary, #1d4ed8);
  background: var(--accent-primary, #1d4ed8);
  color: #ffffff;
  font-family: var(--font-heading, 'Space Grotesk', sans-serif);
  font-size: 0.84rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.18s ease, border-color 0.18s ease;
  text-decoration: none;
  width: auto;
  margin: 0;
}

.page-syllabus .view-btn:hover {
  background: var(--accent-primary-hover, #1e40af);
  border-color: var(--accent-primary-hover, #1e40af);
  transform: none !important;
}

html[data-theme='dark'] .page-syllabus .view-btn {
  background: #2563eb;
  border-color: #2563eb;
  color: #ffffff;
}

html[data-theme='dark'] .page-syllabus .view-btn:hover {
  background: #1d4ed8;
  border-color: #3b82f6;
}

/* Unboxed Empty Search State */
.syllabus-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2.5rem 1rem;
  gap: 0.5rem;
  background: transparent;
  border: none;
}

.syllabus-empty-state[hidden] {
  display: none !important;
}

.syllabus-empty-state > i {
  font-size: 1.6rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.syllabus-empty-state h3 {
  font-family: var(--font-heading, 'Space Grotesk', sans-serif);
  font-size: 1.15rem;
  font-weight: 800;
  margin: 0;
  color: var(--text-primary);
}

.syllabus-empty-state p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
  max-width: 400px;
}

.syllabus-reset-link {
  margin-top: 0.35rem;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--accent-primary, #1d4ed8);
  font-family: var(--font-heading, 'Space Grotesk', sans-serif);
  font-size: 0.86rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.syllabus-reset-link:hover {
  text-decoration: underline;
}

/* ----------------------------------------------------------------------------
   4. MOBILE & TABLET RESPONSIVENESS
   ---------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .syllabus-container {
    margin: 1rem auto 4rem;
    padding: 0 1rem;
  }

  .syllabus-main {
    gap: 1.5rem;
  }

  .page-syllabus .welcome-section .syllabus-title {
    font-size: 1.95rem;
  }

  .page-syllabus .welcome-section .syllabus-subtitle {
    font-size: 0.95rem;
  }

  .syllabus-filter-bar {
    flex-direction: column;
    align-items: stretch;
    gap: 0.85rem;
  }

  .syllabus-stream-tabs {
    width: 100%;
    box-sizing: border-box;
  }

  .page-syllabus .tr-syllabus-search-wrap {
    min-width: 100%;
    max-width: 100%;
  }
}

@media (max-width: 560px) {
  .page-syllabus .syllabus-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .page-syllabus .syllabus-item {
    padding: 1.25rem;
    border-radius: 16px;
  }

  .page-syllabus .view-btn {
    min-height: 42px;
  }
}