/* === CSS Variables === */
:root {
  --bg: #fdf6f0;
  --bg-card: #fff9f5;
  --text: #2d2520;
  --text-muted: #8a7a72;
  --border: #e8d8cf;
  --accent: #b07060;
  --accent-hover: #8a5040;
  --shadow: 0 1px 4px rgba(80,40,20,0.07);
}

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { background: var(--bg); color: var(--text); font-family: system-ui, sans-serif; line-height: 1.5; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

/* === Typography === */
.text-sm  { font-size: 0.875rem; }
.text-md  { font-size: 1rem; }
.text-lg  { font-size: 1.25rem; }
.text-xl  { font-size: 1.5rem; }
.text-2xl { font-size: 2rem; }
.text-muted { color: var(--text-muted); }
.font-bold { font-weight: 700; }

/* === Spacing === */
.m-sm  { margin: 0.5rem; }
.m-md  { margin: 1rem; }
.m-lg  { margin: 2rem; }
.mt-sm { margin-top: 0.5rem; }
.mt-md { margin-top: 1rem; }
.mt-lg { margin-top: 2rem; }
.mb-sm { margin-bottom: 0.5rem; }
.mb-md { margin-bottom: 1rem; }
.mb-lg { margin-bottom: 2rem; }
.my-sm { margin-top: 0.5rem; margin-bottom: 0.5rem; }
.my-md { margin-top: 1rem;   margin-bottom: 1rem; }
.my-lg { margin-top: 2rem;   margin-bottom: 2rem; }
.mx-sm { margin-left: 0.5rem; margin-right: 0.5rem; }
.mx-md { margin-left: 1rem;   margin-right: 1rem; }
.mx-lg { margin-left: 2rem;   margin-right: 2rem; }
.mx-auto { margin-left: auto; margin-right: auto; }

.p-sm  { padding: 0.5rem; }
.p-md  { padding: 1rem; }
.p-lg  { padding: 2rem; }
.px-sm { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-md { padding-left: 1rem;   padding-right: 1rem; }
.px-lg { padding-left: 2rem;   padding-right: 2rem; }
.py-sm { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-md { padding-top: 1rem;   padding-bottom: 1rem; }
.py-lg { padding-top: 2rem;   padding-bottom: 2rem; }

/* === Layout === */
.container { max-width: 860px; width: 100%; margin-left: auto; margin-right: auto; padding-left: 1rem; padding-right: 1rem; }
.flex      { display: flex; }
.flex-col  { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center   { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: 0.5rem; }
.gap-md { gap: 1rem; }
.gap-lg { gap: 2rem; }

/* === Card === */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1rem;
  box-shadow: var(--shadow);
}
.card:hover { border-color: var(--accent); }

/* === Tag / Badge === */
.tag {
  display: inline-block;
  background: var(--border);
  color: var(--text-muted);
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
}

/* === Video Embed === */
.video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 0.5rem;
  background: #000;
}
.video-wrapper iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: 0;
}

/* === Divider === */
hr { border: none; border-top: 1px solid var(--border); margin: 1.5rem 0; }

/* === Modal === */
.al-modal {
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1.5rem;
  background: var(--bg-card);
  color: var(--text);
  max-width: 360px;
  width: calc(100% - 2rem);
  box-shadow: 0 4px 24px rgba(0,0,0,0.15);
  margin: auto;
}
.al-modal::backdrop { background: rgba(0,0,0,0.4); }
.al-modal h3 { margin: 0 0 1rem; font-size: 1rem; font-weight: 700; }

/* === Shared input === */
.al-input {
  display: block;
  width: 100%;
  padding: 0.4rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  background: var(--bg);
  color: var(--text);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}
.al-input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

/* === Modal actions === */
.modal-actions { display: flex; justify-content: flex-end; gap: 0.5rem; }
.modal-actions button, .modal-btn {
  padding: 0.35rem 0.9rem;
  border-radius: 0.375rem;
  border: 1px solid var(--border);
  cursor: pointer;
  font-size: 0.875rem;
  background: var(--bg-card);
  color: var(--text);
}
.modal-actions button[data-primary], .modal-btn[data-primary] { background: var(--accent); border-color: var(--accent); color: #fff; }

/* === Vote button === */
.vote-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.1rem 0.25rem;
  color: var(--text-muted);
  border-radius: 0.25rem;
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.vote-btn:hover { color: var(--accent); }

/* === Tag pill button === */
.tag-pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--bg-card);
  cursor: pointer;
}
.tag-pill-btn:hover { color: var(--text); border-color: var(--accent); }

/* === Edit-tags chips === */
.edit-chips { display: flex; flex-wrap: wrap; gap: 0.4rem; min-height: 1.5rem; margin-bottom: 0.75rem; }
.edit-chip {
  display: inline-flex; align-items: center; gap: 0.25rem;
  padding: 0.15rem 0.4rem 0.15rem 0.6rem;
  border-radius: 999px; font-size: 0.8rem;
  border: 1px solid var(--border); background: var(--bg);
}
.edit-chip.marked { text-decoration: line-through; opacity: 0.45; }
.edit-chip.new-tag { border-color: var(--accent); color: var(--accent); }
.edit-chip button { background: none; border: none; cursor: pointer; padding: 0 0.1rem; font-size: 0.8rem; color: inherit; line-height: 1; }

/* === Lecture Card === */
.lecture-card { display: flex; gap: 1rem; align-items: center; flex-wrap: wrap; }
.lecture-link { display: flex; gap: 1rem; align-items: center; flex: 1; min-width: 0; color: inherit; text-decoration: none; }
.lecture-actions { display: flex; flex-direction: column; gap: 0.25rem; flex-shrink: 0; }
.lecture-learnings { width: 200px; flex-shrink: 0; display: flex; flex-direction: column; gap: 0.3rem; }
@media (max-width: 640px) {
  .lecture-learnings { order: 10; width: 100%; border-top: 1px solid var(--border); padding-top: 0.5rem; }
}

/* === Toast === */
#toast-rack {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 9999;
  pointer-events: none;
}
.toast {
  font-size: 0.8rem;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0.4rem;
  padding: 0.4rem 0.75rem;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.toast.show  { opacity: 1; transform: translateY(0); }
.toast.error { color: #b05060; border-color: #e8c0c8; }