/* Nếp Sống Dưỡng Sinh — breathing practice page [nsds_tap_tho]. Tokens only, flat fills, targets >= 48px. */
.nsds .nsds-practice { max-width: var(--container-max); margin: var(--space-xl) auto; color: var(--text-primary); font: 400 16px/1.6 var(--font-sans); }
.nsds .nsds-practice *,
.nsds .nsds-practice *::before,
.nsds .nsds-practice *::after { box-sizing: border-box; }

/* Server-rendered list (no JS) */
.nsds .nsds-practice__fallback { padding: var(--space-lg); background: var(--surface-default); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); }
.nsds .nsds-practice__fallback-list { margin: 0 0 var(--space-md); padding-left: var(--space-lg); }
.nsds .nsds-practice__fallback-list li { margin: 0 0 var(--space-sm); }
.nsds .nsds-practice__fallback-list a { color: var(--text-link); text-decoration: underline; }
.nsds .nsds-practice--js .nsds-practice__fallback { display: none; }

/* Layout: one column in DOM order; two columns via grid-template-areas from 900 px */
.nsds .nsds-practice__app { display: grid; grid-template-columns: minmax(0, 1fr); gap: var(--space-lg); }
.nsds .nsds-practice__head,
.nsds .nsds-practice__methods,
.nsds .nsds-practice__durations,
.nsds .nsds-practice__body { min-width: 0; }
.nsds .nsds-practice__methods,
.nsds .nsds-practice__durations,
.nsds .nsds-practice__body { padding: var(--space-lg); background: var(--surface-default); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); }

.nsds .nsds-practice__label { margin: 0 0 var(--space-sm); padding: 0; font: 600 14px/1.5 var(--font-sans); color: var(--text-secondary); }

/* Method radio group */
.nsds .nsds-practice__methods { margin: 0; }
.nsds .nsds-practice__method { display: flex; align-items: flex-start; gap: var(--space-sm); min-height: 48px; margin: 0 0 var(--space-xs); padding: var(--space-sm) var(--space-md); background: var(--surface-default); border: 1px solid var(--border-default); border-radius: var(--radius-md); cursor: pointer; transition: border-color 120ms cubic-bezier(0.2, 0, 0, 1), background-color 120ms cubic-bezier(0.2, 0, 0, 1); }
.nsds .nsds-practice__method input { flex: 0 0 auto; width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--action-primary); }
.nsds .nsds-practice__method.is-selected { background: var(--label-practice-bg); border-color: var(--action-primary); }
.nsds .nsds-practice__method:focus-within { outline: 2px solid var(--focus-ring); outline-offset: 2px; }
.nsds .nsds-practice__method input:disabled { cursor: default; }
.nsds .nsds-practice__method-body { display: flex; flex-direction: column; min-width: 0; }
.nsds .nsds-practice__method-title { font: 600 16px/1.4 var(--font-sans); color: var(--text-primary); }
.nsds .nsds-practice__method-cadence { font: 400 14px/1.5 var(--font-sans); color: var(--text-secondary); overflow-wrap: anywhere; }

/* Durations */
.nsds .nsds-practice__duration-buttons { display: flex; flex-wrap: wrap; gap: var(--space-sm); }
.nsds .nsds-practice .nsds-btn { min-height: 48px; min-width: 48px; }
.nsds .nsds-practice__duration-buttons .nsds-btn[aria-pressed="true"],
.nsds .nsds-practice__toggle[aria-pressed="true"] { background: var(--action-primary); border-color: var(--action-primary); color: var(--text-inverse); }
.nsds .nsds-practice .nsds-btn:disabled { cursor: default; opacity: 0.6; }
.nsds .nsds-practice__fixed { margin: var(--space-sm) 0 0; font: 400 14px/1.6 var(--font-sans); color: var(--text-secondary); }

/* Player */
.nsds .nsds-practice__title { margin: 0 0 var(--space-xs); font: 600 22px/1.3 var(--font-display); color: var(--text-primary); }
.nsds .nsds-practice__method-hint { margin: 0 0 var(--space-md); font: 400 15px/1.6 var(--font-sans); color: var(--text-secondary); }
.nsds .nsds-practice__stage { position: relative; display: flex; align-items: center; justify-content: center; width: 100%; max-width: 260px; aspect-ratio: 1; margin: 0 auto var(--space-md); }
.nsds .nsds-practice__ring { position: absolute; inset: 0; border: 1px solid var(--border-default); border-radius: var(--radius-pill); }
.nsds .nsds-practice__circle { position: absolute; inset: 0; border-radius: var(--radius-pill); background: var(--label-practice-bg); border: 2px solid var(--action-primary); transform: scale(0.55); transform-origin: center; will-change: transform; }
.nsds .nsds-practice__phase { position: relative; margin: 0; padding: 0 var(--space-md); font: 600 20px/1.4 var(--font-display); color: var(--text-primary); }
.nsds .nsds-practice__bar-track { display: none; width: 100%; height: 8px; margin: 0 0 var(--space-md); background: var(--surface-sunken); border-radius: var(--radius-pill); overflow: hidden; }
.nsds .nsds-practice__bar { display: block; width: 0; height: 100%; background: var(--action-primary); }
.nsds .nsds-practice__hint { margin: 0 0 var(--space-sm); font: 600 15px/1.6 var(--font-sans); color: var(--label-practice-text); }
.nsds .nsds-practice__status { display: flex; flex-direction: column; align-items: center; margin: 0 0 var(--space-md); }
.nsds .nsds-practice__count { font: 600 40px/1.2 var(--font-display); color: var(--action-primary); font-variant-numeric: tabular-nums; }
.nsds .nsds-practice__left,
.nsds .nsds-practice__round { font: 400 14px/1.5 var(--font-sans); color: var(--text-secondary); font-variant-numeric: tabular-nums; }
.nsds .nsds-practice__controls,
.nsds .nsds-practice__toggles { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-sm); margin: 0 0 var(--space-md); }
.nsds .nsds-practice__controls .nsds-btn[hidden] { display: none; }
.nsds .nsds-practice__notice { margin: 0 0 var(--space-md); padding: var(--space-sm) var(--space-md); background: var(--label-caution-bg); border: 1px solid var(--label-caution-border); border-radius: var(--radius-md); font: 400 14px/1.6 var(--font-sans); color: var(--label-caution-text); }
.nsds .nsds-practice__wake { margin: 0 0 var(--space-md); font: 400 14px/1.6 var(--font-sans); color: var(--text-secondary); }
.nsds .nsds-practice__notes { text-align: left; border-top: 1px solid var(--border-subtle); padding-top: var(--space-md); }
.nsds .nsds-practice__care,
.nsds .nsds-practice__safety { margin: 0 0 var(--space-sm); font: 400 14px/1.6 var(--font-sans); color: var(--label-caution-text); }
.nsds .nsds-practice__care { padding: var(--space-sm) var(--space-md); background: var(--label-caution-bg); border: 1px solid var(--label-caution-border); border-radius: var(--radius-md); }
.nsds .nsds-practice__note { margin: 0 0 var(--space-sm); font: 400 14px/1.6 var(--font-sans); color: var(--text-secondary); }
.nsds .nsds-practice__learn-wrap { margin: 0; }
.nsds .nsds-practice__learn { display: inline-flex; align-items: center; min-height: 48px; color: var(--text-link); text-decoration: underline; font: 600 15px/1.5 var(--font-sans); }
.nsds .nsds-practice__noscript { margin: var(--space-md) 0 0; font: 400 14px/1.6 var(--font-sans); color: var(--text-secondary); }
.nsds .nsds-practice [hidden] { display: none; }
.nsds .nsds-practice button:focus-visible,
.nsds .nsds-practice a:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }

/* Below 900 px: one column in DOM order; the method list is collapsed behind "Đổi kiểu thở". */
.nsds .nsds-practice__notice:empty { display: none; }
.nsds .nsds-practice__head { text-align: center; }
.nsds .nsds-practice__change { margin: 0 0 var(--space-md); }
.nsds .nsds-practice__body { text-align: center; }
@media (max-width: 899px) {
  .nsds .nsds-practice__methods { display: none; }
  .nsds .nsds-practice__methods.is-open { display: block; }
}
@media (max-width: 400px) {
  .nsds .nsds-practice__methods,
  .nsds .nsds-practice__durations,
  .nsds .nsds-practice__body,
  .nsds .nsds-practice__fallback { padding: var(--space-md); }
  .nsds .nsds-practice__stage { max-width: 210px; }
}
@media (min-width: 900px) {
  .nsds .nsds-practice__change { display: none; }
  .nsds .nsds-practice__app {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    grid-template-rows: auto auto 1fr;
    grid-template-areas:
      "methods head"
      "methods body"
      "durations body";
    align-items: start;
  }
  .nsds .nsds-practice__head { grid-area: head; }
  .nsds .nsds-practice__methods { grid-area: methods; }
  .nsds .nsds-practice__durations { grid-area: durations; }
  .nsds .nsds-practice__body { grid-area: body; position: sticky; top: calc(var(--header-height) + var(--space-md)); }
}
@media (prefers-reduced-motion: reduce) {
  .nsds .nsds-practice__circle { transform: none; opacity: 0.6; }
  .nsds .nsds-practice__bar-track { display: block; }
  .nsds .nsds-practice__method { transition: none; }
}
.nsds .nsds-practice--reduced .nsds-practice__circle { transform: none; opacity: 0.6; }
.nsds .nsds-practice--reduced .nsds-practice__bar-track { display: block; }