:root {
  /* Primary Colors */
  --glass-bg: rgba(15, 23, 42, 0.65);
  --glass-bg-secondary: rgba(15, 23, 42, 0.78);
  --glass-bg-high-opacity: rgba(15, 23, 42, 0.92);
  --glass-border: rgba(148, 163, 184, 0.25);
  --glass-border-subtle: rgba(148, 163, 184, 0.2);
  
  /* Accent Colors */
  --accent: #38bdf8;
  --accent-soft: rgba(56, 189, 248, 0.2);
  --accent-border: rgba(56, 189, 248, 0.35);
  
  /* Background Gradients */
  --bg-gradient-start: #0f172a;
  --bg-gradient-end: #1e1b4b;
  
  /* Text Colors */
  --text-primary: #f8fafc;
  --text-secondary: rgba(226, 232, 240, 0.7);
  --text-muted: rgba(30, 41, 59, 0.85);
  
  /* Semantic Colors */
  --hover-bg: rgba(37, 99, 235, 0.15);
  --table-striped-bg: rgba(30, 41, 59, 0.75);
  --button-shadow: rgba(79, 70, 229, 0.45);
  --gradient-primary: rgba(59, 130, 246, 0.25);
  --gradient-accent: rgba(244, 63, 94, 0.15);
}

/* ============================================================
   Base Styles
   ============================================================ */

html {
  scroll-behavior: smooth;
}

html,
body {
  min-height: 100%;
}

body {
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  background: radial-gradient(circle at 20% 20%, var(--gradient-primary), transparent 40%),
    radial-gradient(circle at 80% 0%, var(--gradient-accent), transparent 55%),
    linear-gradient(135deg, var(--bg-gradient-start), var(--bg-gradient-end));
  color: var(--text-primary);
}

/* ============================================================
   Layout Components
   ============================================================ */

/* Navigation */
.glassy-nav {
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
}

/* Footer */
.footer-glass {
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(16px);
  border-top: 1px solid var(--glass-border);
}

/* ============================================================
   Glass Panels & Cards
   ============================================================ */

.glass-panel {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 1.25rem;
  backdrop-filter: blur(18px);
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.35);
}

.workout-card {
  padding: 1.5rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.workout-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 50px rgba(56, 189, 248, 0.25);
}

.exercise-card {
  border-radius: 1.25rem;
  background: var(--glass-bg-secondary);
}

/* ============================================================
   Badges & Pills
   ============================================================ */

.badge.bg-primary-soft {
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--accent-border);
  letter-spacing: 0.05em;
}

.stat-pill {
  padding: 1rem 1.25rem;
  border-radius: 1rem;
  background: rgba(148, 163, 184, 0.15);
  border: 1px solid rgba(148, 163, 184, 0.2);
  transition: all 0.2s ease;
}

.stat-pill:hover {
  background: rgba(148, 163, 184, 0.25);
  border-color: rgba(148, 163, 184, 0.35);
}

.empty-state {
  border: 1px dashed rgba(148, 163, 184, 0.35);
}

/* ============================================================
   Buttons
   ============================================================ */

.btn-primary {
  background: linear-gradient(135deg, #38bdf8, #6366f1);
  border: none;
  box-shadow: 0 12px 30px var(--button-shadow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #0ea5e9, #4f46e5);
}

.btn-outline-light:hover,
.btn-outline-light:focus {
  color: #0f172a;
  background: var(--text-primary);
}

/* Button Groups - Consistent spacing and border radius */
.btn-group-sm .btn,
.btn-group .btn {
  border-radius: 0.5rem !important;
  transition: all 0.2s ease;
}

.btn-group-sm .btn:first-child,
.btn-group .btn:first-child {
  border-top-left-radius: 0.5rem !important;
  border-bottom-left-radius: 0.5rem !important;
}

.btn-group-sm .btn:last-child,
.btn-group .btn:last-child {
  border-top-right-radius: 0.5rem !important;
  border-bottom-right-radius: 0.5rem !important;
}

.btn-group-sm,
.btn-group {
  gap: 0.25rem;
}

.btn {
  transition: all 0.2s ease;
}

.btn:focus {
  outline: 2px solid transparent;
  outline-offset: 2px;
}

.btn-outline-light:focus {
  box-shadow: 0 0 0 3px rgba(248, 250, 252, 0.15);
}

.btn-primary:focus {
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.25);
}

/* ============================================================
   Form Elements
   ============================================================ */

.form-control,
.form-select,
.input-group-text {
  background-color: var(--glass-bg);
  border-color: rgba(148, 163, 184, 0.3);
  color: var(--text-primary);
  transition: all 0.2s ease;
}

.form-control:focus,
.form-select:focus {
  box-shadow: 0 0 0 0.25rem var(--accent-soft);
  border-color: rgba(56, 189, 248, 0.65);
  background-color: rgba(15, 23, 42, 0.9);
  color: var(--text-primary);
}

.form-control::placeholder,
.form-select {
  color: rgba(226, 232, 240, 0.5);
}

.form-label {
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
}

.form-text {
  color: var(--text-secondary) !important;
  font-size: 0.8125rem;
  letter-spacing: 0.01em;
}

/* ============================================================
   Tables
   ============================================================ */

.table-dark {
  --bs-table-bg: rgba(15, 23, 42, 0.7);
  --bs-table-striped-bg: var(--table-striped-bg);
  --bs-table-hover-bg: var(--hover-bg);
}

.table-dark tbody tr {
  transition: background-color 0.15s ease;
  border-bottom-color: rgba(148, 163, 184, 0.15);
}

.table-dark tbody tr:hover {
  background-color: var(--hover-bg);
}

.table-dark th {
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text-secondary);
  text-transform: uppercase;
  font-size: 0.75rem;
}

/* Responsive table improvements */
@media (max-width: 768px) {
  .table-responsive {
    border-radius: 0.75rem;
    border: 1px solid var(--glass-border);
  }

  .table-responsive .table {
    font-size: 0.875rem;
    white-space: nowrap;
  }

  .table-responsive .table thead th {
    background: var(--text-muted);
    position: sticky;
    top: 0;
    z-index: 10;
  }

  .table-responsive .table th,
  .table-responsive .table td {
  padding: 0.5rem 0.75rem;
  }
}

/* ============================================================
   Cards
   ============================================================ */

.set-accordion-group {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.set-accordion {
  position: relative;
  border-radius: 1.1rem;
  background: var(--glass-bg-high-opacity);
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: 0 18px 38px rgba(15, 23, 42, 0.45);
  overflow: hidden;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.set-accordion:hover,
.set-accordion:focus-within {
  border-color: rgba(56, 189, 248, 0.55);
  box-shadow: 0 22px 48px rgba(56, 189, 248, 0.2);
  transform: translateY(-2px);
}

.set-summary {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: transparent;
  border: none;
  color: var(--text-primary);
  text-align: left;
  transition: background 0.2s ease;
}

.set-summary:focus {
  outline: none;
  box-shadow: inset 0 0 0 2px rgba(56, 189, 248, 0.25);
}

.set-summary:hover {
  background: rgba(56, 189, 248, 0.12);
}

.set-summary:not(.collapsed) {
  background: rgba(56, 189, 248, 0.18);
  border-bottom: 1px solid rgba(148, 163, 184, 0.25);
}

.set-summary-content {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.set-summary-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.set-summary:not(.collapsed) .set-summary-metrics,
.set-summary:not(.collapsed) .set-summary-meta {
  display: none;
}

.summary-metric {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  border: 1px solid var(--glass-border-subtle);
  background: rgba(148, 163, 184, 0.12);
  color: var(--text-secondary);
  font-size: 0.85rem;
  max-width: 220px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.summary-metric i {
  color: var(--accent);
}

.set-summary-meta span {
  color: var(--text-secondary);
}

.summary-caret {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.1rem;
  transition: transform 0.2s ease;
}

.set-summary:not(.collapsed) .summary-caret {
  transform: rotate(180deg);
}

.set-card {
  background: rgba(30, 41, 59, 0.5);
  border: 1px solid var(--glass-border);
  border-radius: 0.75rem;
}

.set-accordion .set-card {
  border: none;
  border-radius: 0 0 1.1rem 1.1rem;
  background: rgba(15, 23, 42, 0.65);
}


.set-detail-layout {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 992px) {
  .set-detail-layout {
    grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
    align-items: start;
  }
}

.descriptor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.descriptor-form .descriptor-section {
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid var(--glass-border-subtle);
  border-radius: 1rem;
  padding: 1.25rem 1.5rem;
}

.descriptor-form .descriptor-section + .descriptor-section {
  margin-top: 1.25rem;
}

.descriptor-section-title {
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.descriptor-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.descriptor-toggle .form-check-label {
  color: var(--text-primary);
  font-weight: 600;
}

.descriptor-helper {
  margin-top: 0.35rem;
}

.descriptor-form .form-text {
  color: var(--text-secondary);
}

.descriptor-item {
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid var(--glass-border-subtle);
  border-radius: 0.85rem;
  padding: 0.85rem 1rem;
  min-height: 4.25rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.descriptor-label {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.descriptor-value {
  margin-top: 0.4rem;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.set-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.18);
  border: 1px solid var(--glass-border-subtle);
  color: var(--text-primary);
  font-size: 0.8rem;
}

.set-notes {
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
}

.set-notes .descriptor-label {
  color: var(--text-secondary);
}

/* ============================================================
   Block Overview & Toggle
   ============================================================ */

.block-overview-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.overview-row {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
}

.overview-row:last-child {
  margin-bottom: 0;
}

.workout-view-container {
  position: relative;
}

.view-panel {
  display: none;
  animation: fadeIn 0.2s ease;
}

.workout-view-container[data-active-view="exercise"] .view-panel[data-view="exercise"],
.workout-view-container[data-active-view="block"] .view-panel[data-view="block"] {
  display: block;
}

.block-view-toggle .btn {
  min-width: 160px;
  border-color: rgba(226, 232, 240, 0.25);
}

.block-view-nav {
  position: sticky;
  top: 1rem;
  z-index: 5;
  margin-bottom: 1.5rem;
  padding: 1rem 1.25rem;
  border-radius: 1rem;
  background: var(--glass-bg-high-opacity);
  border: 1px solid var(--glass-border);
  box-shadow: 0 10px 25px rgba(15, 23, 42, 0.35);
  backdrop-filter: blur(18px);
}

.block-view-nav .text-white-50 {
  letter-spacing: 0.08em;
}

.block-nav-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.block-nav-chips .btn {
  border-color: rgba(226, 232, 240, 0.35);
  color: rgba(226, 232, 240, 0.85);
  background: rgba(148, 163, 184, 0.08);
}

.block-nav-chips .btn:hover,
.block-nav-chips .btn:focus {
  color: var(--text-primary);
  border-color: rgba(226, 232, 240, 0.6);
  background: rgba(148, 163, 184, 0.18);
}

.block-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.block-card {
  border: 1px solid var(--glass-border-subtle);
  background: var(--glass-bg-secondary);
}

.block-card-meta .meta-row {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
}

.block-card-meta .meta-row:last-child {
  margin-bottom: 0;
}

.block-rounds-table .table {
  --bs-table-bg: transparent;
  --bs-table-color: var(--text-primary);
  --bs-table-border-color: rgba(226, 232, 240, 0.12);
  --bs-table-hover-bg: rgba(226, 232, 240, 0.08);
  --bs-table-striped-bg: rgba(148, 163, 184, 0.08);
  background: rgba(15, 23, 42, 0.65);
  border-radius: 0.75rem;
  color: var(--text-primary);
  border: 1px solid rgba(226, 232, 240, 0.12);
  overflow: hidden;
}

.block-rounds-table .table thead th {
  color: rgba(226, 232, 240, 0.6);
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  border-color: rgba(226, 232, 240, 0.12);
}

.block-rounds-table .table td,
.block-rounds-table .table th {
  padding: 0.75rem;
  border-color: rgba(226, 232, 240, 0.08);
}

.block-rounds-table .table tbody tr:not(:last-child) {
  border-bottom: 1px solid rgba(226, 232, 240, 0.08);
}

.block-rounds-table {
  background: rgba(15, 23, 42, 0.35);
  border-radius: 1rem;
  border: 1px solid var(--glass-border-subtle);
  padding: 0.75rem;
}

.block-rounds-table .table {
  margin-bottom: 0;
}

.block-set-chip {
  background: rgba(148, 163, 184, 0.08);
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  padding: 0.75rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  color: var(--text-primary);
  min-height: 140px;
}

.block-set-chip.empty {
  border-style: dashed;
  border-color: rgba(226, 232, 240, 0.2);
  background: transparent;
  justify-content: center;
  text-align: center;
}

.block-set-metrics {
  display: grid;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: rgba(226, 232, 240, 0.75);
}

@media (min-width: 768px) {
  .block-set-metrics {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  }
}

.block-set-chip-header .badge {
  font-size: 0.65rem;
}

.block-set-notes {
  font-size: 0.85rem;
  color: var(--text-primary);
}

/* ============================================================
   Modals
   ============================================================ */

.modal-content {
  background: var(--glass-bg-high-opacity);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(18px);
  animation: slideIn 0.3s ease;
}

.modal-header,
.modal-footer {
  border-color: var(--glass-border-subtle) !important;
}

/* Smooth collapse animations */
.collapse {
  transition: height 0.35s ease;
}

/* ============================================================
   Authentication
   ============================================================ */

/* Auth page background and layout */
.auth-bg {
  background: linear-gradient(145deg, var(--bg-gradient-start), #1f2937 55%, #111827 100%);
  min-height: 100vh;
}

/* Login page styling */
.auth-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1rem;
}

.auth-card {
  max-width: 420px;
  width: 100%;
  padding: 3rem 3.5rem;
  border-radius: 1.5rem;
  background: var(--glass-bg-high-opacity);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
}

/* ============================================================
   Animations & Transitions
   ============================================================ */

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================
   Equipment Catalog
   ============================================================ */

.equipment-card {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.equipment-card-summary {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.equipment-card-summary .badge {
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  padding: 0.35rem 0.5rem;
}

.equipment-card-toggle {
  white-space: nowrap;
  border-color: rgba(226, 232, 240, 0.2);
  color: rgba(226, 232, 240, 0.85);
  background: rgba(148, 163, 184, 0.05);
}

.equipment-card-toggle:hover,
.equipment-card-toggle:focus {
  color: var(--text-primary);
  border-color: rgba(226, 232, 240, 0.35);
  background: rgba(148, 163, 184, 0.12);
}

.equipment-card-toggle .expanded-label {
  display: none;
}

.equipment-card-toggle:not(.collapsed) .expanded-label {
  display: inline;
}

.equipment-card-toggle:not(.collapsed) .collapsed-label {
  display: none;
}

.equipment-card-details {
  display: grid;
  gap: 1rem;
  margin-top: 0.75rem;
}

.equipment-attributes {
  margin: 0;
  display: grid;
  gap: 0.5rem;
}

.equipment-attributes dt {
  margin: 0;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(226, 232, 240, 0.65);
}

.equipment-attributes dd {
  margin: 0;
  font-weight: 600;
  color: var(--text-primary);
}

.equipment-notes {
  background: rgba(148, 163, 184, 0.15);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  color: rgba(226, 232, 240, 0.85);
}

.equipment-card-meta {
  border-top: 1px solid rgba(226, 232, 240, 0.12);
  padding-top: 0.75rem;
}