/* Full-page fixed, semi-transparent background */
body {
  position: relative;
  margin: 0;
  min-height: 100vh;
  z-index: 0;
}
body::before {
  content: "";
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: url("/static/images/mead_background.png") no-repeat center center;
  background-size: cover;
  background-attachment: fixed;
  opacity: 0.15;
  z-index: -1;
}

/* Menu bar styling */
.menu-bar {
  background: #f8f8f8;
  padding: 0.5rem 1rem;
  margin-bottom: 1rem;
  box-shadow: 0 1px 4px rgba(0,0,0,0.1);
  display: flex;
  flex-wrap: wrap;
}
.menu {
  list-style: none;
  margin: 0; padding: 0;
  display: flex; align-items: center;
  flex-wrap: wrap;
}
.menu li { margin:0; padding:0; }
.menu li + li::before {
  content: "||"; margin: 0 0.5rem; color: #666;
}
.menu li a {
  text-decoration: none; font-weight: bold; color: #333;
}
.menu li a:hover { text-decoration: underline; }
.menu li img.avatar-icon {
  border-radius:50%; vertical-align:middle; margin-right:0.5rem;
  width:24px; height:24px;
}

/* Layout Utilities */
.container {
  max-width:1200px; margin:0 auto; padding:0 1rem;
}
.mx-auto { margin-left:auto; margin-right:auto; }
.mt-6 { margin-top:1.5rem; }
.mt-2 { margin-top:0.5rem; }

/* Grid Utilities */
.grid { display:grid; }
.grid-cols-2 { grid-template-columns: repeat(2,1fr); }
.grid-cols-3 { grid-template-columns: repeat(3,1fr); }
.gap-8 { gap:2rem; }

/* Typography */
.text-2xl { font-size:1.5rem; line-height:2rem; }
.font-semibold { font-weight:600; }
.font-bold { font-weight:bold; }
.ml-4 { margin-left:1rem; }

/* Definition Lists */
dl { margin:0; }
dt { margin-top:1rem; }
dd { margin-left:1rem; margin-bottom:0.5rem; }

/* Section Headings */
h2 { margin-bottom:0.5rem; }

/* Calculator section */
.calc-section {
  background: rgba(255,255,255,0.9);
  border: 1px solid #ddd;
  border-radius: 4px;
  padding: 1rem;
}

/* Table styling */
.calc-table {
  width:100%; border-collapse:collapse;
}
.calc-table th,
.calc-table td {
  border:1px solid #ccc;
  padding:0.5rem;
  text-align:center;
}
.calc-table tbody tr.highlight {
  background-color:#fffae6;
}

/* Input styling */
.calc-inputs label { font-weight:bold; }
.calc-inputs input[type="range"] { width:100%; }

/* Four-cell grid */
.calc-grid {
  display:grid;
  grid-template-columns: repeat(2,1fr);
  grid-auto-rows: auto;
  gap:2rem;
}

/* Stack sections in each column */
.calc-col {
  display:flex;
  flex-direction:column;
  gap:1.5rem;
}

/* Inputs & options */
.inputs label,
.options label {
  display:block;
  margin-bottom:0.5rem;
}

/* Batch Builder full-width */
.batch-builder {
  margin-top:2rem;
  text-align:center;
}
.builder-inputs {
  display:flex;
  justify-content:center;
  gap:2rem;
  flex-wrap:wrap;
  margin-bottom:1rem;
}
.builder-inputs label { font-weight:bold; }
.builder-inputs input[type="range"] {
  vertical-align:middle;
  margin:0 0.5rem;
}
.builder-results p { margin:0.5rem 0; font-size:1rem; }

/* Collapsible explanation */
.calc-info {
  margin-top:2rem;
  background: rgba(255,255,255,0.95);
  border:1px solid #ddd;
  border-radius:4px;
  padding:1rem;
}
.calc-info summary {
  font-weight:bold;
  cursor:pointer;
  margin-bottom:0.5rem;
  outline:none;
}
.calc-info summary::-webkit-details-marker { display:none; }
.calc-info summary::before {
  content:"▶";
  display:inline-block;
  transform:rotate(0deg);
  transition:transform .2s;
  margin-right:.5rem;
}
.calc-info[open] summary::before {
  transform:rotate(90deg);
}
.calc-info p { margin:0.75rem 0; }
.calc-info pre {
  background:#f5f5f5;
  padding:.5rem;
  overflow-x:auto;
  border-radius:3px;
  margin:.5rem 0;
}
.calc-info code { font-family:monospace; }

.line-span {
  display: block;
  height: 2px; 
  background-color: black;
  margin: 20px 0;
}

/* ============================
   Dark Theme Overrides
   ============================ */

body.dark {
  background-color: #121212;
  color: #e0e0e0;
}
body.dark::before {
  opacity: 0.05;
}
body.dark .menu-bar {
  background: #1e1e1e;
  box-shadow: 0 1px 4px rgba(0,0,0,0.7);
}
body.dark .menu li a {
  color: #e0e0e0;
}
body.dark .calc-section,
body.dark .calc-info {
  background: rgba(30,30,30,0.8);
  border-color: #444;
  color: #e0e0e0;
}
body.dark .button {
  background-color: #333;
  color: #fafafa;
  border: 1px solid #555;
}
body.dark .button.secondary {
  background-color: transparent;
  color: #e0e0e0;
  border-color: #e0e0e0;
}
body.dark a {
  color: #80cbc4;
}
body.dark select,
body.dark input,
body.dark textarea {
  background-color: #333;
  color: #e0e0e0;
  border: 1px solid #555;
}
body.dark option {
  background-color: #333;
  color: #e0e0e0;
}

/* media play button */
.play-btn {
  font: 600 1rem/1 "Segoe UI", sans-serif;
  padding: 0.6rem 1.2rem;
  border-radius: 0.5rem;
  border: none;
  background: #198754;
  color: #fff;
  cursor: pointer;
  transition: background 0.2s;
}
.play-btn:hover {
  background: #157347;
}

/* Detail Panel - reusable across views */
.detail-panel {
  background-color: rgba(255,255,255,0.75);
  padding: 1.5rem;
  border-radius: .5rem;
  margin: 2rem auto;
  max-width: 600px;
  color: #333;
}
body.dark .detail-panel {
  background-color: rgba(30,30,30,0.85);
  color: #e0e0e0;
}
.detail-panel h1 {
  margin-bottom: .5rem;
}
.detail-panel h2 {
  margin-top: 1rem;
  margin-bottom: .25rem;
  font-weight: 500;
}
.detail-panel ul {
  list-style: disc inside;
  margin-left: 1rem;
}
.detail-panel .prose {
  white-space: pre-wrap;
}
.detail-panel .button.primary {
  background-color: #4a90e2;
  color: white;
  border: none;
  padding: .5rem 1rem;
  border-radius: .25rem;
  cursor: pointer;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  transition: transform .1s ease, box-shadow .1s ease;
  margin-right: .5rem;
}
.detail-panel .button.primary:active {
  transform: translateY(2px);
  box-shadow: 0 2px 3px rgba(0,0,0,0.1);
}
.detail-panel .button.secondary {
  background-color: #eee;
  color: #333;
  border: none;
  padding: .5rem 1rem;
  border-radius: .25rem;
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  transition: transform .1s ease, box-shadow .1s ease;
  margin-right: .5rem;
}
.detail-panel .button.secondary:active {
  transform: translateY(2px);
  box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

/* ============================
   Mobile-Friendly Enhancements
   ============================ */

@media (max-width: 768px) {
  .calc-grid {
    grid-template-columns: 1fr;
  }

  .builder-inputs {
    flex-direction: column;
    align-items: stretch;
  }

  .detail-panel {
    margin: 1rem;
    padding: 1rem;
  }

  .menu-bar {
    flex-direction: column;
  }

  .menu {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .menu li + li::before {
    content: "";
    margin: 0;
  }
}

/* Ensure images and tables scale properly */
img {
  max-width: 100%;
  height: auto;
}
table {
  width: 100%;
  overflow-x: auto;
  display: block;
}

/* Touch/scroll polish */
html {
  scroll-behavior: smooth;
  -webkit-tap-highlight-color: transparent;
}

/* Navigation container */
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  position: relative;
}

/* Hamburger toggle checkbox (hidden) */
.nav-toggle {
  display: none;
}

/* Hamburger button styling */
.nav-toggle-label {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: 0.5rem;
  gap: 5px;
}
.nav-toggle-label span {
  display: block;
  width: 25px;
  height: 3px;
  background: #333;
  border-radius: 3px;
  transition: all 0.3s ease;
  transform-origin: center;
}
.nav-toggle:checked + .nav-toggle-label span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle:checked + .nav-toggle-label span:nth-child(2) {
  opacity: 0;
}
.nav-toggle:checked + .nav-toggle-label span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Dark mode for hamburger lines and menu */
body.dark .nav-toggle-label span {
  background: #e0e0e0;
}
body.dark .nav-links {
  background: #1e1e1e;
  border-color: #333;
}

/* Responsive nav toggle */
@media (max-width: 768px) {
  .nav-toggle-label {
    display: flex;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    background: #f8f8f8;
    margin-top: 0.5rem;
    padding: 0.5rem 0;
    border-top: 1px solid #ddd;
  }

  .nav-links li {
    padding: 0.5rem 1rem;
    width: 100%;
  }

  .nav-toggle:checked + .nav-toggle-label + .nav-links {
    display: flex;
  }

  .menu li + li::before {
    content: "";
    margin: 0;
  }
}

/* ============================
   Recipe Panels (Light/Dark)
   ============================ */

.recipes-panel {
  background-color: rgba(255,255,255,0.75);
  padding: 1rem;
  border-radius: 0.5rem;
  margin-top: 1rem;
}

body.dark .recipes-panel {
  background-color: rgba(30,30,30,0.85);
  color: #e0e0e0;
}

.featured-recipe-panel {
  background-color: rgba(255,255,255,0.75);
  padding: 1.5rem;
  border-radius: 0.5rem;
  margin: 2rem auto 0;
  max-width: 600px;
  color: #333;
}

.featured-recipe-panel h1 {
  margin-bottom: 0.5rem;
  font-size: 1.5rem;
}
.featured-recipe-panel h2 {
  margin-top: 1rem;
  margin-bottom: 0.25rem;
  font-weight: 500;
}
.featured-recipe-panel ul {
  list-style: disc inside;
  margin-left: 1rem;
}
.featured-recipe-panel .prose {
  margin-top: 0.5rem;
}

body.dark .featured-recipe-panel {
  background-color: rgba(30,30,30,0.85);
  color: #e0e0e0;
}


/* Hide buttons and controls when printing */
@media print {
  .no-print,
  .no-print * {
    display: none !important;
  }

  body {
    background: white !important;
    color: black !important;
  }

  body::before {
    display: none;
  }

  .detail-panel {
    background: none !important;
    color: black !important;
    box-shadow: none;
    padding: 0;
    margin: 0;
    max-width: 100%;
  }

  .detail-panel .button {
    display: none;
  }

  .menu-bar,
  .menu,
  .nav-container {
    display: none !important;
  }
}

.button-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
  justify-content: flex-start;
}

.button-group .button,
.button-group .btn {
  flex: 1 1 auto;
  min-width: 160px;
  text-align: center;
}

/* ============================
   Tooltip for TOSNA definition
   ============================ */
.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip-trigger {
  color: #0066cc;
  cursor: help;
  margin-left: 0.5rem;
  font-size: 0.9rem;
}

.tooltip-content {
  display: none;
  position: absolute;
  top: 1.5rem;
  left: 0;
  width: 600px;
  max-height: 400px;
  overflow-y: auto;
  background: #fff;
  color: #000;
  border: 1px solid #ccc;
  padding: 1rem;
  border-radius: 4px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
  z-index: 100;
  font-size: 0.9rem;
  line-height: 1.4;
}

.tooltip:hover .tooltip-content {
  display: block;
}

/* Dark mode tooltip */
body.dark .tooltip-content {
  background: #222;
  color: #eee;
  border-color: #444;
}