:root {
  color-scheme: light;
  --bg: #f6f3ee;
  --card: #fffdf8;
  --ink: #1f2933;
  --muted: #6b7280;
  --line: #ded7ca;
  --soft: #f1eadf;
  --accent: #111827;
  --accent-soft: #e8e3d8;
  --ok: #e8f7ee;
  --bad: #fdecec;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--ink);
}
.container { max-width: 920px; margin: 0 auto; padding: 20px 14px 80px; }
.hero { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 14px; }
.hero p { margin: 0; color: var(--muted); font-size: .95rem; }
.home-link { color: var(--ink); text-decoration: none; font-weight: 850; font-size: 1.35rem; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  margin-top: 14px;
  box-shadow: 0 8px 24px rgba(31, 41, 51, .045);
}
h1, h2, h3 { margin: 0 0 10px; }
.muted, .empty { color: var(--muted); }
.messages { margin: 8px 0; }
.message { border-radius: 12px; padding: 11px 13px; margin-bottom: 8px; }
.message.success { background: var(--ok); }
.message.error { background: var(--bad); }
.split-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; }
.split-button {
  width: 100%; min-height: 76px; border: 0; border-radius: 16px; padding: 12px;
  background: var(--accent); color: white; cursor: pointer; text-align: left;
  display: grid; gap: 4px; align-content: center;
}
.split-button span { font-size: 1.15rem; font-weight: 850; }
.split-button small { opacity: .76; }
.mini-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 14px; }
.mini-stats div, .mini-stat-link { border: 1px solid var(--line); border-radius: 14px; background: var(--soft); padding: 12px; display: grid; gap: 2px; color: var(--ink); text-decoration: none; }
.mini-stats strong { font-size: 1.35rem; }
.mini-stats span { color: var(--muted); }
.activity-card { padding: 16px; }
.activity-card h2 { font-size: 1.1rem; }
.activity-scroll { overflow-x: auto; padding-bottom: 12px; scrollbar-gutter: stable; }
.activity-calendar { display: grid; grid-template-columns: max-content max-content; gap: 7px; min-width: max-content; align-items: start; padding-bottom: 2px; }
.activity-labels { display: grid; grid-template-rows: repeat(7, 11px); gap: 3px; color: var(--muted); font-size: .68rem; line-height: 11px; }
.activity-grid { display: flex; gap: 3px; min-width: max-content; }
.activity-months { grid-column: 2; display: grid; grid-template-columns: repeat(var(--activity-weeks), 11px); gap: 3px; color: var(--muted); font-size: .66rem; line-height: 1; margin-top: 8px; padding-bottom: 3px; }
.activity-months span { white-space: nowrap; }
.activity-week { display: grid; grid-template-rows: repeat(7, 11px); gap: 3px; }
.activity-day {
  width: 11px; height: 11px; border-radius: 3px; display: inline-block; border: 1px solid rgba(31,41,51,.08);
  background: #ebe4d8; text-decoration: none;
}
.activity-day.active { background: var(--accent); cursor: pointer; }
.activity-day.active:hover, .activity-day.active:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.activity-day.today { box-shadow: 0 0 0 2px var(--ink); }
.activity-day.out-of-range { opacity: .28; }
.session-list { display: grid; gap: 12px; }
.session-card {
  display: block; border-top: 1px solid var(--line); padding: 12px; margin: 0 -12px;
  color: var(--ink); text-decoration: none; border-radius: 14px;
}
.session-card:first-child { border-top: 0; }
.session-card:hover, .session-card:focus-visible { background: var(--soft); outline: none; }
.session-title { display: flex; justify-content: space-between; gap: 10px; color: var(--ink); text-decoration: none; font-weight: 850; }
.session-title small { color: var(--muted); font-weight: 650; white-space: nowrap; }
.history-row { display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: center; border-top: 1px solid var(--line); }
.history-row:first-child { border-top: 0; }
.history-row .session-card { border-top: 0; margin: 0; }
.compact-danger { padding: 9px 12px; }
.notebook-lines { margin-top: 10px; display: grid; gap: 6px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.notebook-lines div { display: flex; flex-wrap: wrap; gap: 8px; align-items: baseline; }
.notebook-lines strong { min-width: 150px; }
.notebook-lines em, .session-note { color: var(--muted); margin: 0; }
.editor-head { display: flex; justify-content: space-between; gap: 10px; align-items: start; }
.editor-actions { display: flex; gap: 8px; flex-wrap: wrap; justify-content: end; }
.text-button, button.text-button { color: var(--ink); text-decoration: none; background: var(--soft); padding: 9px 12px; border-radius: 999px; font-weight: 800; font-family: inherit; cursor: pointer; }
.session-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin: 14px 0 4px; }
.nav-button {
  display: grid; gap: 2px; border: 1px solid var(--line); border-radius: 14px; padding: 11px 12px;
  background: var(--soft); color: var(--ink); text-decoration: none; font-weight: 850;
}
.nav-button small { color: var(--muted); font-weight: 650; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.nav-button.next { text-align: right; }
.nav-button:not(.disabled):hover, .nav-button:not(.disabled):focus-visible { background: var(--accent); color: white; outline: none; }
.nav-button:not(.disabled):hover small, .nav-button:not(.disabled):focus-visible small { color: rgba(255,255,255,.78); }
.nav-button.disabled { opacity: .48; }
.previous-box { border: 1px dashed var(--line); border-radius: 14px; padding: 12px; margin: 12px 0; background: #fffaf0; }
.previous-box summary { cursor: pointer; font-weight: 850; }
.top-fields, .exercise-grid, .add-exercise-form { display: grid; gap: 10px; }
.top-fields { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-bottom: 12px; }
.exercise-editor-list { display: grid; gap: 12px; }
.exercise-editor { padding: 12px; border: 1px solid var(--line); border-radius: 16px; background: #fffaf0; }
.exercise-order-controls { display: flex; justify-content: flex-end; gap: 6px; margin-bottom: 8px; }
.order-button {
  width: 38px; min-height: 34px; border-radius: 11px; padding: 0;
  background: var(--accent-soft); color: var(--accent); font-size: 1.05rem;
}
.order-button:disabled { opacity: .35; cursor: not-allowed; }
.exercise-grid { grid-template-columns: 1.5fr .6fr .7fr 1.6fr; }
.exercise-name, .reps-field { min-width: 0; }
.full { grid-column: 1 / -1; }
label { display: grid; gap: 5px; color: var(--muted); font-weight: 750; font-size: .9rem; }
.field-label { display: block; color: var(--muted); font-weight: 750; font-size: .9rem; margin-bottom: 5px; }
.set-inputs { display: grid; grid-template-columns: repeat(3, minmax(46px, 1fr)); gap: 6px; }
.set-input-row { display: grid; grid-template-columns: 1fr 30px; gap: 4px; }
.set-input-row input, .new-set-inputs input { text-align: center; padding-left: 6px; padding-right: 6px; font-weight: 850; }
.icon-button {
  border-radius: 10px; padding: 0; min-height: 42px; background: var(--accent-soft); color: var(--accent); font-size: 1.1rem;
}
.add-set-button {
  margin-top: 7px; padding: 8px 10px; background: var(--accent-soft); color: var(--accent); border-radius: 12px; width: 100%;
}
.new-set-inputs { display: grid; grid-template-columns: repeat(3, minmax(42px, 1fr)); gap: 6px; }
.add-set-inline { margin-top: 0; align-self: stretch; }
input, textarea, select {
  width: 100%; border: 1px solid var(--line); border-radius: 11px; padding: 11px 12px;
  background: #fff; color: var(--ink); font: inherit; font-size: 1rem;
}
label.is-disabled { opacity: .55; }
input:disabled { background: var(--soft); cursor: not-allowed; }
.actions { display: flex; justify-content: flex-end; margin-top: 12px; }
button { border: 0; border-radius: 999px; padding: 12px 16px; background: var(--accent); color: white; font-weight: 850; cursor: pointer; }
button.secondary { background: var(--accent-soft); color: var(--accent); }
button.danger { color: #991b1b; }
.delete-btn.is-armed { background: #991b1b; color: #fff; border-color: #991b1b; }
.delete-btn.is-armed:hover { background: #7f1d1d; border-color: #7f1d1d; }
.session-danger-zone { margin-top: 24px; border-color: rgba(153,27,27,.25); }
.session-danger-zone h2 { color: #991b1b; }
.session-delete-form { margin-top: 12px; display: flex; justify-content: flex-start; }
.session-delete-form .delete-btn { padding: 12px 20px; font-size: 1rem; }
.sticky-actions { position: sticky; bottom: 10px; padding-top: 8px; }
.sticky-actions button { box-shadow: 0 8px 24px rgba(31,41,51,.18); }
.compact-card h2 { font-size: 1.1rem; }
.add-exercise-form { grid-template-columns: 1.4fr .7fr .6fr 1fr 1fr auto; align-items: end; }
.delete-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.section-head { display: flex; justify-content: space-between; gap: 10px; align-items: center; }
.heading-link { color: var(--ink); text-decoration: none; }
.heading-link:hover, .heading-link:focus-visible { text-decoration: underline; outline: none; }
.pet-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  align-items: center;
  background: linear-gradient(115deg, var(--card), #f5e4d8);
  border-color: #d8b09b;
}
.pet-copy { min-width: 0; }
.eyebrow {
  margin: 0 0 5px;
  color: var(--accent);
  font-size: .72rem;
  font-weight: 850;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.pet-card h2 { margin-bottom: 3px; }
.pet-card p { margin: 0 0 13px; }
.pet-meter {
  height: 8px;
  max-width: 430px;
  margin-bottom: 7px;
  overflow: hidden;
  background: rgba(199,111,77,.16);
  border-radius: 4px;
}
.pet-meter span { display: block; height: 100%; background: var(--accent); border-radius: inherit; }
.pet-creature {
  position: relative;
  display: grid;
  width: 118px;
  height: 118px;
  place-items: center;
  border: 1px solid rgba(199,111,77,.35);
  border-radius: 50%;
  background: rgba(255,250,240,.64);
  color: var(--accent);
  animation: pet-breathe 3.2s ease-in-out infinite;
}
.pet-creature svg { width: 105px; height: 105px; overflow: visible; animation: pet-idle 4s ease-in-out infinite; }
.pet-spark { position: absolute; z-index: 2; opacity: 0; font-weight: 900; pointer-events: none; }
.pet-spark-a { top: 16px; left: 17px; }
.pet-spark-b { right: 17px; top: 32px; font-size: 1.4rem; }
.pet-spark-c { right: 23px; bottom: 18px; }
.pet-shadow { fill: rgba(80,55,42,.12); animation: pet-shadow 3.2s ease-in-out infinite; transform-origin: center; }
.pet-body { fill: #d9855d; stroke: #7a4539; stroke-width: 3; stroke-linejoin: round; transform-origin: 80px 90px; }
.pet-ear { fill: #e79b73; stroke: #7a4539; stroke-width: 3; stroke-linejoin: round; transform-box: fill-box; }
.pet-ear-left { transform-origin: right bottom; }
.pet-ear-right { transform-origin: left bottom; }
.pet-belly { fill: #f4c5a0; stroke: #9d5b48; stroke-width: 2; }
.pet-arm, .pet-foot, .pet-tail { fill: #c86d50; stroke: #7a4539; stroke-width: 3; stroke-linejoin: round; transform-box: fill-box; }
.pet-eye { fill: #25251f; }
.pet-face, .pet-blush, .pet-glint { fill: none; stroke: #7a4539; stroke-width: 3; stroke-linecap: round; }
.pet-blush { stroke: #c05d59; stroke-width: 2; }
.pet-glint { stroke: #f9dfc7; stroke-width: 4; }
.pet-creature.level-1 svg { animation: pet-sleep 4.5s ease-in-out infinite; }
.pet-creature.level-1 .pet-eye { animation: pet-blink 4.5s ease-in-out infinite; transform-origin: center; }
.pet-creature.level-2 .pet-ear-left { animation: pet-ear-left 2.8s ease-in-out infinite; }
.pet-creature.level-2 .pet-ear-right { animation: pet-ear-right 2.8s ease-in-out infinite; }
.pet-creature.level-3 svg { animation: pet-bounce 1.8s ease-in-out infinite; }
.pet-creature.level-3 .pet-tail { animation: pet-tail 1.8s ease-in-out infinite; transform-origin: left center; }
.pet-creature.level-4 .pet-arm-left { animation: pet-flex-left 2.2s ease-in-out infinite; transform-origin: right center; }
.pet-creature.level-4 .pet-arm-right { animation: pet-flex-right 2.2s ease-in-out infinite; transform-origin: left center; }
.pet-creature.level-5 .pet-body { animation: pet-power 2s ease-in-out infinite; }
.pet-creature.level-5 .pet-spark-a, .pet-creature.level-5 .pet-spark-b { animation: pet-spark 2.4s ease-in-out infinite; }
.pet-creature.level-6 .pet-body { animation: pet-power 1.4s ease-in-out infinite; }
.pet-creature.level-6 .pet-spark { animation: pet-orbit 2.8s linear infinite; }
.pet-creature.level-6 .pet-spark-b { animation-delay: -.9s; }
.pet-creature.level-6 .pet-spark-c { animation-delay: -1.8s; }
.pet-creature.level-1 { border-style: dashed; }
.pet-creature.level-1 svg { scale: .88; filter: saturate(.78); }
.pet-creature.level-1 .pet-spark { display: none; }
.pet-creature.level-2 { transform: scale(1.04); }
.pet-creature.level-3 { transform: scale(1.08); }
.pet-creature.level-4 { transform: scale(1.12); }
.pet-creature.level-5 { transform: scale(1.16); }
.pet-creature.level-6 { transform: scale(1.2); }
.pet-creature.level-3 .pet-body, .pet-creature.level-4 .pet-body,
.pet-creature.level-5 .pet-body, .pet-creature.level-6 .pet-body { fill: #bf7657; }
.pet-creature.level-5 .pet-arm-left, .pet-creature.level-6 .pet-arm-left { transform: rotate(12deg); transform-origin: center; }
.pet-creature.level-5 .pet-arm-right, .pet-creature.level-6 .pet-arm-right { transform: rotate(-12deg); transform-origin: center; }
.pet-creature.level-6 { border-color: rgba(199,111,77,.65); box-shadow: 0 0 0 5px rgba(199,111,77,.1); }
@keyframes pet-breathe { 0%, 100% { translate: 0 0; } 50% { translate: 0 -2px; } }
@keyframes pet-idle { 0%, 100% { rotate: 0deg; } 50% { rotate: -2deg; } }
@keyframes pet-sleep { 0%, 100% { translate: 0 2px; rotate: -3deg; } 50% { translate: 0 4px; rotate: 2deg; } }
@keyframes pet-blink { 0%, 42%, 48%, 100% { scale: 1 1; } 45% { scale: 1 .12; } }
@keyframes pet-ear-left { 0%, 100% { rotate: 0deg; } 50% { rotate: -8deg; } }
@keyframes pet-ear-right { 0%, 100% { rotate: 0deg; } 50% { rotate: 8deg; } }
@keyframes pet-bounce { 0%, 100% { translate: 0 0; } 50% { translate: 0 -7px; } }
@keyframes pet-tail { 0%, 100% { rotate: -4deg; } 50% { rotate: 14deg; } }
@keyframes pet-flex-left { 0%, 100% { rotate: 0deg; } 50% { rotate: -18deg; } }
@keyframes pet-flex-right { 0%, 100% { rotate: 0deg; } 50% { rotate: 18deg; } }
@keyframes pet-power { 0%, 100% { scale: 1 1; } 50% { scale: 1.06 1.02; } }
@keyframes pet-shadow { 0%, 100% { scale: 1; opacity: .75; } 50% { scale: .86 1; opacity: .45; } }
@keyframes pet-spark { 0%, 100% { opacity: 0; translate: 0 5px; scale: .7; } 35%, 65% { opacity: .85; translate: 0 0; scale: 1; } }
@keyframes pet-orbit { from { opacity: .1; rotate: 0deg; translate: 0 0; } 35% { opacity: 1; } 70% { opacity: .45; } to { opacity: .1; rotate: 360deg; translate: 0 0; } }
@media (prefers-reduced-motion: reduce) {
  .pet-creature, .pet-creature *, .pet-creature::before { animation: none !important; }
}
@media (max-width: 540px) {
  .pet-creature { width: 82px; height: 82px; }
  .pet-creature svg { width: 75px; height: 75px; }
}
.pet-stats {
  display: flex;
  grid-column: 1 / -1;
  gap: 22px;
  padding-top: 13px;
  border-top: 1px solid rgba(199,111,77,.2);
}
.pet-stats div { display: grid; gap: 1px; }
.pet-stats strong { font-size: 1.25rem; }
.pet-stats span { color: var(--muted); font-size: .82rem; }
@media (max-width: 540px) {
  .pet-card { grid-template-columns: 1fr auto; gap: 12px; }
  .pet-creature { width: 82px; height: 82px; }
  .pet-creature svg { width: 75px; height: 75px; }
  .pet-stats { gap: 15px; }
}
.history-launch-card {
  display: grid; gap: 4px; width: 100%; text-align: left;
  background: var(--card); color: var(--ink);
  border: 1px solid var(--line); border-radius: 18px;
  padding: 18px; font: inherit;
  box-shadow: 0 8px 24px rgba(31, 41, 51, .045);
}
.history-launch-card:hover, .history-launch-card:focus-visible { background: var(--soft); outline: none; }
.history-launch-card h2 { margin-bottom: 0; }
.history-launch-card p { margin: 0; color: var(--muted); }
.library-launch-card {
  display: grid; gap: 4px;
  background: var(--card); color: var(--ink);
  border: 1px solid var(--line); border-radius: 18px;
  padding: 18px;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(31, 41, 51, .045);
}
.library-launch-card:hover, .library-launch-card:focus-visible { background: var(--soft); outline: none; }
.library-launch-card h2 { margin-bottom: 0; }
.library-launch-card p { margin: 0; color: var(--muted); }
.launch-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.launch-row > form { display: contents; }
@media (max-width: 540px) {
  .launch-row { grid-template-columns: 1fr; }
}
.strength-list { display: grid; gap: 8px; }
.strength-row {
  display: flex; justify-content: space-between; gap: 12px; align-items: center;
  border-top: 1px solid var(--line); padding: 12px 0; color: var(--ink); text-decoration: none;
}
.strength-row:first-child { border-top: 0; }
.strength-row:hover, .strength-row:focus-visible { color: var(--accent); outline: none; }
.strength-row div:first-child { display: grid; gap: 2px; }
.strength-row span, .strength-row small { color: var(--muted); }
.strength-numbers { display: grid; gap: 3px; text-align: right; white-space: nowrap; }
.strength-numbers span { color: var(--ink); font-weight: 850; }
.delta { font-weight: 850; }
.delta.up { color: #047857; }
.delta.down { color: #b91c1c; }
.summary-tile { border: 1px solid var(--line); border-radius: 16px; padding: 13px; background: var(--soft); display: grid; gap: 2px; }
.summary-tile strong { font-size: 1.45rem; }
.summary-tile span { color: var(--muted); }
.recency-list { display: grid; gap: 8px; }
.recency-row { display: flex; justify-content: space-between; gap: 12px; align-items: center; border-top: 1px solid var(--line); padding-top: 8px; color: var(--ink); text-decoration: none; border-radius: 10px; }
.recency-row:first-child { border-top: 0; padding-top: 0; }
.recency-row:hover, .recency-row:focus-visible { background: var(--soft); outline: none; }
.recency-row span { color: var(--muted); }
.sparkline { width: 100%; height: 42px; border-radius: 12px; background: var(--card); border: 1px solid var(--line); }
.sparkline polyline { fill: none; stroke: var(--accent); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
@media (max-width: 760px) {
  .container { padding: 14px 10px 88px; }
  .hero { display: block; }
  .hero p { margin-top: 4px; }
  .split-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mini-stats { grid-template-columns: 1fr; }
  .split-grid form:last-child { grid-column: auto; }
  .session-title { display: grid; }
  .notebook-lines strong { min-width: 112px; }
  .top-fields, .exercise-grid, .add-exercise-form, .session-nav { grid-template-columns: 1fr; }
  .add-exercise-form button { width: 100%; }
  .exercise-result { grid-template-columns: 48px 1fr; }
  .exercise-thumb { width: 48px; height: 48px; }
}

/* --- wger exercise picker (Add exercise form) ---------------------- */
.exercise-picker {
  grid-column: 1 / -1;
  display: grid;
  gap: 6px;
  margin-top: 4px;
  padding: 10px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
}
.exercise-picker[hidden] { display: none; }
.exercise-picker-search-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 6px;
  align-items: center;
}
.exercise-picker input[type="search"] {
  width: 100%;
  padding: 9px 12px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  font: inherit;
}
.exercise-picker input[type="search"]:focus {
  outline: none;
  border-color: var(--accent);
}
.exercise-results {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 4px;
  max-height: 320px;
  overflow-y: auto;
}
.exercise-result {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 10px;
  align-items: center;
  padding: 8px;
  border-radius: 10px;
  cursor: pointer;
  transition: background 120ms ease;
}
.exercise-result:hover, .exercise-result:focus-visible {
  background: var(--soft);
  outline: none;
}
.exercise-thumb {
  width: 56px;
  height: 56px;
  object-fit: cover;
  border-radius: 8px;
  background: var(--soft);
}
.exercise-result-body { display: grid; gap: 2px; min-width: 0; }
.exercise-result-name { font-weight: 700; color: var(--ink); }
.exercise-result-meta { font-size: 0.85rem; color: var(--muted); }
.exercise-picker .muted.small { font-size: 0.8rem; margin: 0; }

/* --- Exercise library page (/exercises) ---------------------------- */
.library-card { display: grid; gap: 14px; }
.library-toolbar { display: grid; gap: 6px; }
.library-search-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 8px;
  align-items: center;
}
.library-search-row input[type="search"] {
  width: 100%;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  font: inherit;
}
.library-search-row input[type="search"]:focus {
  outline: none;
  border-color: var(--accent);
}
.library-toolbar .muted.small,
.library-card > p.muted.small { font-size: 0.85rem; margin: 0; }

/*
  Exercise library grid — every card is a fixed-size box:
   • Same thumb height regardless of whether an image loaded
   • Same thumb aspect ratio (4:3) so cards line up across rows
   • NO PREVIEW placeholders use the same box as real images
   • align-items: stretch + min-height: 100% on thumbs locks
     all cards in a row to identical heights even when titles
     wrap differently.
*/
.library-grid {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  /* Compact: ~160px wide cards, 4-5 columns on desktop. */
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 10px;
  align-items: stretch;
}
.library-card-item {
  display: grid;
  grid-template-rows: auto auto;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  height: 100%;
}
.library-thumb-box {
  position: relative;
  width: 100%;
  /* Compact thumb: ~100px tall at 160px wide. */
  aspect-ratio: 16 / 10;
  background: var(--soft);
  overflow: hidden;
}
.library-thumb-box > img.library-thumb {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  /* `contain` keeps the whole image visible (body diagrams are
     critical detail; cropping would hide the movement being shown).
     `background: var(--soft)` on .library-thumb-box supplies a
     neutral backdrop so letterboxing bars blend with the card. */
  object-fit: contain;
  display: block;
}
/* Empty box (no image, or image failed to load) shows a small muted
   mark in the same 16:10 box. Keeps the row visually uniform — no
   ragged two-height rows. Mark is intentionally small and quiet so
   it reads as "nothing here" rather than competing with the name. */
.library-thumb-box.is-empty {
  display: flex;
  align-items: center;
  justify-content: center;
}
.no-image-mark {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  opacity: 0.45;
  font-weight: 600;
  user-select: none;
}
.library-card-body {
  display: grid;
  gap: 3px;
  padding: 8px 10px 10px;
  align-content: start;
}
.library-card-name {
  font-weight: 800;
  color: var(--ink);
  font-size: 0.92rem;
  /* Two lines max, then ellipsis. Keeps card heights aligned. */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.2;
  min-height: calc(1.2em * 2);
}
.library-card-meta {
  font-size: 0.78rem;
  color: var(--muted);
  min-height: 1.2em;
}
.library-add-form { margin-top: 4px; }
.library-add-btn {
  width: 100%;
  padding: 6px 10px;
  font-size: 0.85rem;
}

@media (max-width: 760px) {
  .library-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
}
@media (max-width: 420px) {
  .library-grid { grid-template-columns: 1fr; }
}

/* --- Spinner inside Search buttons ----------------------------------- */
/* Search buttons contain a .btn-label (text) and a .spinner (initially
   hidden). When the parent form has .is-loading, the spinner spins and
   the label dims slightly so the user sees the request is in flight. */
button .spinner {
  display: none;
  width: 12px;
  height: 12px;
  margin-left: 8px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  vertical-align: middle;
}
form.is-loading button[type="submit"] .spinner {
  display: inline-block;
  animation: workout-spin 0.7s linear infinite;
}
form.is-loading button[type="submit"] .btn-label {
  opacity: 0.6;
}
form.is-loading button[type="submit"] {
  cursor: progress;
}
button:disabled {
  cursor: not-allowed;
  opacity: 0.7;
}
@keyframes workout-spin {
  to { transform: rotate(360deg); }
}

/* --- Muscle filter chips --------------------------------------------- */
/* Filter row above the search input. Deliberately NOT pill-shaped —
   that's the generic-AI cluster on dark sites. Instead: hairline
   underline on the active chip, same --line color as the rest of the
   app, no fill, no border-radius. Same vocabulary as the existing
   --line borders on cards. Multi-select would add a thinner tick on
   each selected chip; today this is single-select with an "All" reset. */
.muscle-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  padding: 4px 0 10px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 4px;
}
.muscle-chip {
  background: transparent;
  border: 0;
  padding: 6px 2px;
  margin: 0;
  font: inherit;
  font-size: 0.92rem;
  color: var(--muted);
  cursor: pointer;
  position: relative;
  border-radius: 0; /* explicit override — chips never get rounded */
  letter-spacing: 0.01em;
  transition: color 120ms ease;
}
.muscle-chip:hover {
  color: var(--ink);
}
.muscle-chip.is-active {
  color: var(--accent);
  font-weight: 700;
}
.muscle-chip.is-active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -11px;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}
.muscle-chip:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}