/* Altermagnets weekly-picks page — loaded AFTER the site-wide /style.css,
   which provides the page background, .container panel, .site-title and .topnav.
   This file styles only the .am-shell content inside the standard .subcontainer.
   Adapted from the frustrated-magnets stylesheet, streamlined:
   - one shared .am-badge class instead of badge/tag/link variants;
   - flatter card structure (title -> badges -> authors -> TL;DR -> summary);
   - left-aligned text instead of justified (fewer rivers with forced wrapping;
     restore with `text-align: justify` on .am-paragraph/.am-block-text if preferred).
   Signature accent: a two-tone rule (blue / rose) standing for the two
   spin sublattices of an altermagnet. */

.am-page,
.am-page * {
  box-sizing: border-box;
  min-width: 0;
}

:root {
  --am-spin-a: #8fb0ff;   /* sublattice A: blue  */
  --am-spin-b: #ff9db8;   /* sublattice B: rose  */
  --am-ink: #edf3ff;
  --am-ink-soft: rgba(233, 241, 255, 0.92);
  --am-line: rgba(160, 188, 255, 0.18);
  --am-glass: rgba(255, 255, 255, 0.045);
}

/* ---- shell -------------------------------------------------------------- */

.am-page .subcontainer.am-shell {
  width: min(100%, 980px);
  margin: 0 auto 30px;
  padding: 28px 30px 24px;
  color: var(--am-ink);
  background:
    radial-gradient(circle at top left, rgba(86, 132, 225, 0.11), transparent 34%),
    linear-gradient(180deg, rgba(5, 11, 23, 0.44), rgba(8, 18, 37, 0.38));
  border: 1px solid var(--am-line);
  border-radius: 22px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.24);
  overflow: hidden;
  -webkit-backdrop-filter: blur(6px) saturate(114%);
  backdrop-filter: blur(6px) saturate(114%);
}

.am-shell a {
  color: #dbe7ff;
  text-decoration: none;
}

.am-shell a:hover {
  color: #ffffff;
}

.am-shell a:focus-visible {
  outline: 2px solid var(--am-spin-a);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---- hero --------------------------------------------------------------- */

.am-eyebrow {
  margin: 0 0 10px;
  color: #9fbaff;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 12px;
  font-weight: 700;
}

.am-heading {
  margin: 0 0 14px;
  padding-bottom: 12px;
  color: #ffffff;
  font-size: clamp(1.45rem, 2.1vw, 1.9rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
  /* two-sublattice signature rule */
  background:
    linear-gradient(90deg, var(--am-spin-a), var(--am-spin-b)) left bottom / 96px 3px no-repeat;
}

.am-paragraph {
  margin: 0;
  color: var(--am-ink-soft);
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.am-intro {
  max-width: 76ch;
  font-size: 1.06rem;
}

/* ---- toolbar ------------------------------------------------------------ */

.am-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: stretch;
  gap: 14px;
  margin-top: 20px;
}

.am-toolbar > * {
  margin: 0;
}

.am-feed-link,
.am-status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  padding: 9px 13px;
  border-radius: 14px;
  border: 1px solid var(--am-line);
  background: var(--am-glass);
}

.am-feed-link {
  transition: background 0.15s ease, border-color 0.15s ease;
}

.am-feed-link:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(165, 191, 255, 0.3);
}

.am-feed-label {
  color: #ffffff;
  font-weight: 700;
  white-space: nowrap;
}

.am-feed-path {
  color: #aac6ff;
  font-family: "Courier New", monospace;
  font-size: 0.89rem;
  overflow-wrap: anywhere;
}

.am-status {
  justify-content: center;
  color: rgba(245, 248, 255, 0.94);
  font-size: 0.92rem;
  overflow-wrap: anywhere;
}

/* ---- paper cards -------------------------------------------------------- */

.am-list {
  display: block;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.am-list > li {
  margin: 0 0 18px;
}

.am-card {
  position: relative;
  padding: 18px 20px;
  border: 1px solid rgba(162, 189, 255, 0.15);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.038), rgba(255, 255, 255, 0.022));
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.17);
  overflow: hidden;
}

.am-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--am-spin-a), var(--am-spin-b));
  opacity: 0;
  transition: opacity 0.2s ease;
}

.am-card:hover::before {
  opacity: 0.7;
}

.am-title {
  margin: 0 0 10px;
  color: #ffffff;
  font-size: clamp(1.08rem, 1.35vw, 1.26rem);
  line-height: 1.3;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.am-title a {
  color: inherit;
}

.am-title a:hover {
  color: #cfe0ff;
}

/* Exactly three badges: date, source, PDF */
.am-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.am-badge {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  background: rgba(255, 255, 255, 0.055);
  color: var(--am-ink-soft);
  font-size: 0.84rem;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.am-badge-source {
  border-color: rgba(165, 191, 255, 0.22);
  background: rgba(117, 149, 218, 0.18);
  color: #e9f1ff;
}

a.am-badge-link {
  border-color: rgba(255, 157, 184, 0.28);
  background: rgba(255, 157, 184, 0.12);
  color: #ffffff;
  font-weight: 600;
}

a.am-badge-link:hover {
  background: rgba(255, 157, 184, 0.22);
}

.am-authors {
  margin: 10px 0 0;
  color: rgba(221, 230, 248, 0.95);
  font-size: 0.96rem;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

/* ---- TL;DR and summary blocks ------------------------------------------ */

.am-block {
  margin-top: 14px;
  padding: 13px 16px;
  border-radius: 14px;
  overflow: hidden;
}

.am-block-label {
  display: block;
  margin-bottom: 6px;
  color: #aac6ff;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
}

.am-block-text {
  margin: 0;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.am-tldr {
  background: rgba(95, 131, 203, 0.26);
  border-left: 3px solid var(--am-spin-a);
  color: #f5f8ff;
  font-size: 1.02rem;
}

.am-summary {
  background: rgba(255, 255, 255, 0.05);
  color: rgba(244, 247, 255, 0.98);
  font-size: 1rem;
}

.am-footer {
  margin: 18px 0 0;
  color: rgba(221, 230, 248, 0.95);
  font-size: 0.96rem;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

/* ---- responsive & preferences ------------------------------------------- */

@media (max-width: 900px) {
  .am-page .subcontainer.am-shell {
    padding: 24px 22px 22px;
    border-radius: 18px;
  }

  .am-toolbar {
    grid-template-columns: 1fr;
  }

  .am-feed-link,
  .am-status {
    width: 100%;
  }
}

@media (max-width: 640px) {
  .am-page .subcontainer.am-shell {
    padding: 18px 16px;
    margin-bottom: 22px;
    border-radius: 16px;
  }

  .am-heading {
    font-size: 1.45rem;
  }

  .am-title {
    font-size: 1.06rem;
  }

  .am-intro,
  .am-block-text,
  .am-authors,
  .am-footer {
    font-size: 0.96rem;
  }

  .am-card {
    padding: 16px 14px;
    border-radius: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .am-card::before,
  .am-feed-link {
    transition: none;
  }
}