/* ===== Theme tokens ===== */
:root {
  --bg: #f5f7fa;
  --panel: #ffffff;
  --text: #111827;
  --muted: #6b7280;
  --border: #e5e7eb;
  --list-hover: #f3f4f6;
  --selected: #e5e7eb;
  --accent: #0ea5e9;
  --header-bg: #1f2937;
  --header-text: #ffffff;
  --footer-bg: #f3f4f6;
  --footer-text: #334155;
}

:root[data-theme="dark"] {
  --bg: #0b1220;
  --panel: #0f172a;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --border: #1f2937;
  --list-hover: #111827;
  --selected: #1f2937;
  --accent: #38bdf8;
  --header-bg: #0b1220;
  --header-text: #e5e7eb;
  --footer-bg: #0b1220;
  --footer-text: #94a3b8;
}

/* ===== Global ===== */
* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  background-color: var(--header-bg);
  color: var(--header-text);
  padding: 1rem 2rem;
  text-align: center;

  display: flex;
  flex-direction: column;   /* stack title + subtitle */
  align-items: center;      /* center horizontally */
  gap: .25rem;              /* tighter spacing */

  position: relative;       /* keeps the toggle pinned */
}

header h1 {
  margin: 0;                /* no extra space */
  font-size: 1.8rem;
}

header p {
  margin: 0;
  font-size: 0.9rem;
  opacity: 0.9;
}

/* keep the toggle button styles as-is */


/* Toggle button pinned to right edge on large screens */
.theme-toggle {
  position: absolute;
  right: 1rem;
  top: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .5rem .75rem;
  border-radius: .5rem;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  font: inherit;
  line-height: 1;
}
.theme-toggle:hover { background: var(--list-hover); }

#content {
  flex: 1;
  display: flex;
  padding: 1rem;
  gap: 1rem;
}

/* ===== Sidebar ===== */
#item-list {
  width: 25%;
  max-width: 260px;
  background-color: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem;
  overflow-y: auto;
  height: calc(100vh - 180px);
}

#item-list input[type="text"] {
  width: 100%;
  padding: 0.5rem;
  margin-bottom: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.9rem;
  background: var(--panel);
  color: var(--text);
}

#item-list ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

#item-list li {
  padding: 0.5rem;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: background-color 0.2s;
  color: var(--text);
}

#item-list li:hover { background-color: var(--list-hover); }
#item-list li.selected { background-color: var(--selected); font-weight: 600; }

/* ===== Details ===== */
main#details {
  flex: 1;
  background-color: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 2rem;
  overflow-y: auto;
  height: calc(100vh - 180px);
}

#placeholder {
  text-align: center;
  color: var(--muted);
  margin-top: 3rem;
}

.hidden { display: none; }

#ingredient-list, #raw-materials {
  list-style: none;
  padding: 0;
  margin: 0;
}

#ingredient-list li, #raw-materials li { padding: 0.3rem 0; }
#ingredient-list li span, #raw-materials li span { margin-left: 0.5rem; }

#quantity-controls { margin: 0.5rem 0 1rem 0; }
#quantity-controls label { margin-right: 0.5rem; }

#quantity-controls input[type="number"] {
  width: 80px;
  padding: 0.3rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.9rem;
  background: var(--panel);
  color: var(--text);
}

/* ===== Footer ===== */
footer {
  background-color: var(--footer-bg);
  color: var(--footer-text);
  padding: 0.75rem 2rem;
  font-size: 0.8rem;
  text-align: center;
  border-top: 1px solid var(--border);
}