body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .22;
  background-image: linear-gradient(rgba(255,255,255,.015) 1px, transparent 1px);
  background-size: 100% 4px;
  mask-image: linear-gradient(to bottom, #000, transparent 75%);
}

.gc-shell { min-height: 100vh; }
.gc-sidebar {
  position: fixed; inset: 0 auto 0 0; width: var(--sidebar-w); z-index: 20;
  padding: 28px 18px;
  background: rgba(5, 14, 12, .78);
  border-right: 1px solid var(--border);
  backdrop-filter: blur(22px);
}
.gc-brand { padding: 6px 12px 28px; }
.gc-brand__name { font-size: 25px; font-weight: 850; letter-spacing: -.04em; }
.gc-brand__name span { color: var(--accent); }
.gc-brand__tag { margin-top: 5px; color: var(--text-3); font-size: 9px; letter-spacing: .30em; text-transform: uppercase; }
.gc-nav { display: grid; gap: 7px; }
.gc-nav button {
  width: 100%; border: 1px solid transparent; border-radius: 14px; background: transparent;
  padding: 13px 14px; color: var(--text-2); display: flex; align-items: center; gap: 12px;
  cursor: pointer; text-align: left; transition: .18s ease;
}
.gc-nav button:hover { background: rgba(255,255,255,.035); color: var(--text); }
.gc-nav button.is-active { color: var(--accent); background: var(--accent-soft); border-color: rgba(89,225,176,.11); }
.gc-nav svg { width: 19px; height: 19px; }
.gc-sidebar__footer { position: absolute; bottom: 28px; left: 30px; right: 30px; color: var(--text-3); font-size: 12px; line-height: 1.5; }

.gc-main { margin-left: var(--sidebar-w); min-height: 100vh; }
.gc-page { max-width: var(--content-max); margin: 0 auto; padding: 38px 42px 72px; }
.gc-topbar { display: flex; justify-content: flex-end; gap: 10px; margin-bottom: 18px; }
.gc-icon-btn {
  width: 42px; height: 42px; border-radius: 13px; border: 1px solid var(--border); background: var(--surface-1);
  display: grid; place-items: center; cursor: pointer; transition: .16s ease; backdrop-filter: blur(16px);
}
.gc-icon-btn:hover { transform: translateY(-1px); border-color: var(--border-strong); background: var(--surface-2); }
.gc-icon-btn svg { width: 19px; height: 19px; }

.gc-kicker { color: var(--text-2); font-size: 17px; margin-bottom: 6px; }
.gc-heading { margin: 0; font-size: clamp(38px, 5vw, 64px); line-height: .98; letter-spacing: -.055em; max-width: 720px; }
.gc-heading-sm { margin: 0; font-size: clamp(34px, 4vw, 50px); line-height: 1; letter-spacing: -.045em; }
.gc-subtitle { color: var(--text-2); font-size: 17px; margin-top: 10px; }

.gc-hero {
  position: relative; overflow: hidden; min-height: 220px; display: flex; flex-direction: column; justify-content: center;
  padding: 20px 0 34px;
}
.gc-hero::after {
  content: ""; position: absolute; right: 0; top: -65px; width: min(440px, 45vw); height: 340px; opacity: .62;
  background:
    linear-gradient(90deg, transparent 44%, rgba(185,207,190,.11) 45%, rgba(185,207,190,.11) 46%, transparent 47%),
    repeating-linear-gradient(90deg, transparent 0 34px, rgba(231,241,235,.09) 35px 36px),
    radial-gradient(ellipse at 58% 55%, rgba(89,225,176,.16), transparent 48%);
  transform: rotate(-9deg); filter: blur(.2px); pointer-events: none;
  mask-image: linear-gradient(90deg, transparent, #000 30%, #000);
}

.gc-grid { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(300px, .85fr); gap: 16px; }
.gc-stack { display: grid; gap: 16px; }
.gc-card {
  border: 1px solid var(--border); border-radius: var(--radius-lg); background: linear-gradient(145deg, var(--surface-2), var(--surface-1));
  box-shadow: var(--shadow-md); backdrop-filter: blur(18px); overflow: hidden;
}
.gc-card--accent { border-color: var(--border-strong); background: linear-gradient(145deg, rgba(24,58,49,.90), rgba(12,28,24,.84)); }
.gc-card__body { padding: 22px; }
.gc-card__eyebrow { display: flex; align-items: center; gap: 8px; color: var(--text-2); font-size: 11px; font-weight: 750; letter-spacing: .18em; text-transform: uppercase; }
.gc-dot { width: 24px; height: 24px; display: grid; place-items: center; border-radius: 8px; background: rgba(89,225,176,.14); color: var(--accent); }
.gc-card h2 { margin: 12px 0 4px; font-size: clamp(27px, 3vw, 37px); letter-spacing: -.04em; }
.gc-meta { color: var(--text-2); display: flex; flex-wrap: wrap; gap: 8px; font-size: 14px; }
.gc-list { list-style: none; padding: 16px 0 0; margin: 0; display: grid; gap: 10px; }
.gc-list li { display: grid; grid-template-columns: 30px minmax(0,1fr) auto; align-items: center; gap: 10px; color: #e5ece8; }
.gc-list__index { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; background: rgba(89,225,176,.13); color: #cbf7e7; font-size: 13px; }
.gc-list__value { color: var(--text-2); font-size: 13px; }

.gc-primary {
  width: 100%; min-height: 54px; margin-top: 20px; border: 0; border-radius: 18px; cursor: pointer;
  background: linear-gradient(135deg, #62e7b7, #31c492); color: #062118; font-weight: 850; font-size: 16px;
  box-shadow: 0 14px 34px rgba(42,191,142,.20), inset 0 1px rgba(255,255,255,.35); transition: .18s ease;
}
.gc-primary:hover { transform: translateY(-1px); filter: saturate(1.08) brightness(1.03); }
.gc-secondary { border: 1px solid var(--border); background: rgba(255,255,255,.035); border-radius: 14px; min-height: 46px; padding: 0 16px; cursor: pointer; }
.gc-secondary:hover { border-color: var(--border-strong); background: rgba(89,225,176,.07); }

.gc-action-card { min-height: 126px; padding: 20px; display: flex; align-items: center; gap: 15px; cursor: pointer; transition: .18s ease; }
.gc-action-card:hover { transform: translateY(-2px); border-color: var(--border-strong); background: linear-gradient(145deg, var(--surface-3), var(--surface-1)); }
.gc-action-icon { flex: 0 0 54px; width: 54px; height: 54px; border-radius: 16px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; }
.gc-action-icon svg { width: 26px; height: 26px; }
.gc-action-copy { min-width: 0; flex: 1; }
.gc-action-copy strong { display: block; font-size: 18px; letter-spacing: -.02em; }
.gc-action-copy span { color: var(--text-2); font-size: 13px; line-height: 1.45; }
.gc-chevron { color: var(--text-3); font-size: 24px; }

.gc-section { margin-top: 18px; }
.gc-section__head { display: flex; justify-content: space-between; align-items: center; margin: 0 4px 10px; }
.gc-section__title { font-size: 14px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-2); }
.gc-link { color: var(--accent); border: 0; background: transparent; cursor: pointer; }
.gc-row { display: grid; grid-template-columns: 42px minmax(0,1fr) auto; align-items: center; gap: 12px; padding: 13px 14px; border-top: 1px solid var(--border); }
.gc-row:first-child { border-top: 0; }
.gc-row__icon { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; background: rgba(255,255,255,.05); color: var(--text-2); }
.gc-row__title { font-weight: 700; }
.gc-row__meta { color: var(--text-3); font-size: 12px; margin-top: 3px; }
.gc-row__right { color: var(--text-2); font-size: 12px; }

.gc-search { position: relative; margin: 22px 0 14px; }
.gc-search input { width: 100%; border: 1px solid var(--border); background: rgba(255,255,255,.035); color: var(--text); border-radius: 16px; padding: 15px 16px; outline: none; }
.gc-search input:focus { border-color: var(--border-strong); box-shadow: 0 0 0 3px rgba(89,225,176,.08); }
.gc-pills { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.gc-pill { border: 1px solid var(--border); background: rgba(255,255,255,.025); color: var(--text-2); border-radius: 999px; padding: 9px 14px; cursor: pointer; }
.gc-pill.is-active { color: #071812; background: var(--accent); border-color: transparent; font-weight: 800; }

.gc-exercise-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 12px; }
.gc-exercise { padding: 18px; cursor: pointer; transition: .18s ease; }
.gc-exercise:hover { transform: translateY(-2px); border-color: var(--border-strong); }
.gc-exercise__top { display: flex; align-items: flex-start; gap: 12px; }
.gc-exercise__icon { flex: 0 0 36px; width: 36px; height: 36px; border-radius: 11px; }
.gc-exercise__top > div:nth-child(2) { flex: 1; min-width: 0; }
.gc-exercise__top .gc-item-edit { margin-left: auto; }
.gc-exercise__title { font-size: 18px; font-weight: 800; letter-spacing: -.02em; }
.gc-exercise__tags { display: flex; gap: 6px; flex-wrap: wrap; margin: 10px 0 14px; }
.gc-tag { border-radius: 999px; background: rgba(255,255,255,.05); color: var(--text-2); padding: 5px 9px; font-size: 11px; }
.gc-exercise__foot { display: flex; justify-content: space-between; color: var(--text-3); font-size: 12px; }

.gc-stats { display: grid; grid-template-columns: repeat(4,1fr); gap: 12px; margin-top: 24px; }
.gc-stat { padding: 18px; }
.gc-stat__value { font-size: 29px; font-weight: 850; letter-spacing: -.04em; }
.gc-stat__label { margin-top: 3px; color: var(--text-3); font-size: 10px; text-transform: uppercase; letter-spacing: .12em; }
.gc-bars { display: flex; align-items: end; gap: 10px; height: 160px; padding-top: 22px; }
.gc-bar-col { flex: 1; text-align: center; color: var(--text-3); font-size: 10px; }
.gc-bar { width: 100%; max-width: 54px; margin: 0 auto 8px; border-radius: 8px 8px 3px 3px; background: linear-gradient(#63ddb2,#277c61); min-height: 6px; }

.gc-practice { position: fixed; inset: 0; z-index: 60; background: radial-gradient(1100px 600px at 85% -10%, rgba(89,225,176,.07), transparent 60%), radial-gradient(800px 500px at -5% 110%, rgba(89,225,176,.045), transparent 60%), rgba(3,8,7,.94); backdrop-filter: blur(20px); overflow: auto; }
.gc-practice__wrap { max-width: 760px; min-height: 100vh; margin: auto; padding: 28px 24px 100px; display: flex; flex-direction: column; }
.gc-practice__top { display: flex; justify-content: space-between; align-items: center; }
.gc-practice__title { margin: 50px 0 4px; font-size: clamp(34px, 7vw, 58px); letter-spacing: -.05em; }
.gc-practice__previous { color: var(--text-2); }
.gc-bpm-card { margin-top: 26px; text-align: center; padding: 28px 20px; }
.gc-item-elapsed { display: flex; align-items: baseline; justify-content: center; gap: 8px; margin-bottom: 10px; }
.gc-item-elapsed span { font-size: 36px; font-weight: 800; letter-spacing: -.03em; font-variant-numeric: tabular-nums; }
.gc-item-elapsed small { color: #8fa09a; font-size: 12px; }
.gc-session-elapsed { margin: 2px 0 12px; color: var(--text-2); font-size: 13px; font-weight: 700; }
.gc-session-elapsed span { font-variant-numeric: tabular-nums; }
.gc-bpm-card [data-bpm-meta]:empty { display: none; }
.gc-skip-item { min-height: 44px; padding: 0 12px; margin-right: -12px; color: var(--text-2); font-size: 13px; font-weight: 700; }
.gc-set { position: relative; }
.gc-set .gc-set-undo { margin-left: auto; color: var(--text-3); font-size: 12px; font-weight: 700; }
.gc-set .gc-set-undo:hover { color: var(--danger); }
.gc-session-queue { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 14px; }
.gc-queue-chip { max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-height: 38px; padding: 0 13px; border-radius: 999px; border: 1px solid var(--border); background: rgba(255,255,255,.03); color: var(--text-2); font-size: 12px; font-weight: 700; cursor: pointer; }
.gc-queue-chip.is-done { color: var(--text-3); opacity: .55; cursor: default; }
.gc-queue-chip.is-current { border-color: var(--border-strong); background: rgba(89,225,176,.12); color: var(--accent); cursor: default; }
.gc-queue-chip.is-next:hover { border-color: var(--border-strong); color: var(--text); }
.gc-summary.gc-summary--continue { max-width: 460px; margin: 0 auto; width: 100%; text-align: center; justify-items: center; }
.gc-summary.gc-summary--continue .gc-summary__check { margin: 0 auto; }
.gc-summary.gc-summary--continue .gc-continue-actions { width: 100%; max-width: 380px; margin-inline: auto; }
.gc-summary.gc-summary--continue .gc-primary { justify-self: center; width: 100%; max-width: 380px; }
.gc-summary.gc-summary--continue .gc-summary-title { width: 100%; max-width: 380px; margin-inline: auto; text-align: left; }
.gc-postitem-actions { display: flex; gap: 10px; justify-content: center; }
.gc-ghost-btn { min-height: 42px; padding: 0 16px; border: 1px solid var(--border); border-radius: 12px; background: transparent; color: var(--text-2); font: inherit; font-size: 13px; font-weight: 700; cursor: pointer; }
.gc-ghost-btn:hover { border-color: var(--border-strong); color: var(--text); }
.gc-note-inline { width: 100%; max-width: 380px; margin-inline: auto; }
.gc-note-inline textarea { width: 100%; border: 1px solid var(--border); border-radius: 13px; background: rgba(255,255,255,.04); color: var(--text); padding: 11px 12px; font: inherit; font-size: 13px; line-height: 1.5; resize: vertical; outline: none; }
.gc-note-inline textarea:focus { border-color: var(--border-strong); }
.gc-session-log__head { padding: 10px 0 2px; color: var(--text-3); font-size: 11px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.gc-session-log__main { min-width: 0; }
.gc-session-log__note { display: block; margin-top: 2px; color: var(--text-3); font-size: 12px; font-style: normal; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.gc-log-edit { flex: none; width: 32px; height: 32px; border: 0; border-radius: 9px; background: transparent; color: var(--text-3); font-size: 14px; cursor: pointer; }
.gc-log-edit:hover { background: rgba(255,255,255,.06); color: var(--text); }
.gc-session-log { width: 100%; margin-top: 4px; border: 1px solid var(--border); border-radius: 16px; background: rgba(255,255,255,.02); padding: 6px 14px; text-align: left; }
.gc-session-log__row { display: flex; align-items: baseline; gap: 10px; padding: 9px 0; border-top: 1px solid var(--border); }
.gc-session-log__row:first-child { border-top: 0; }
.gc-session-log__row span { flex: none; width: 20px; height: 20px; display: grid; place-items: center; border-radius: 50%; background: rgba(89,225,176,.12); color: var(--accent); font-size: 11px; font-weight: 800; align-self: center; }
.gc-session-log__row strong { display: block; font-size: 14px; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.gc-session-log__row small { margin-left: auto; color: var(--text-3); font-size: 12px; white-space: nowrap; }
.gc-continue-actions { display: grid; gap: 10px; margin-top: 8px; max-width: 420px; }
.gc-continue-actions .gc-primary { margin: 0; }
.gc-reference-viewer__meta { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.gc-reference-viewer__status { color: var(--text-2); font-size: 12px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.gc-bpm-label { color: var(--text-3); letter-spacing: .18em; font-size: 11px; }
.gc-bpm { font-size: clamp(72px, 16vw, 120px); font-weight: 900; letter-spacing: -.07em; line-height: .95; }
.gc-bpm-controls { margin-top: 18px; display: grid; grid-template-columns: repeat(4,1fr); gap: 8px; }
.gc-bpm-controls button { border: 1px solid var(--border); background: rgba(255,255,255,.04); min-height: 52px; border-radius: 14px; cursor: pointer; }
.gc-bpm-controls button:hover { border-color: var(--border-strong); }
.gc-set-list { margin-top: 16px; }
.gc-set { display: grid; grid-template-columns: 36px 1fr auto; align-items: center; padding: 13px 4px; border-bottom: 1px solid var(--border); }
.gc-set__num { width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent); font-weight: 800; }
.gc-set__meta { color: var(--text-2); font-size: 13px; }
.gc-practice__dock { position: sticky; bottom: 14px; margin-top: auto; padding-top: 28px; display: grid; grid-template-columns: 1fr 1.5fr 1fr; gap: 9px; }
.gc-practice__dock button { min-height: 58px; border-radius: 18px; border: 1px solid var(--border); background: rgba(18,31,28,.94); cursor: pointer; }
.gc-practice__dock .gc-primary { margin: 0; color: #062118; border: 0; }
.gc-summary { text-align: center; margin: auto 0; }
.gc-summary__check { width: 72px; height: 72px; border-radius: 24px; background: var(--accent); color: #062118; display: grid; place-items: center; margin: 0 auto 24px; font-size: 34px; font-weight: 900; }

.gc-mobile-nav { display: none; }

@media (max-width: 900px) {
  .gc-sidebar { display: none; }
  .gc-main { margin-left: 0; }
  .gc-page { padding: 24px 24px 96px; }
  .gc-grid { grid-template-columns: 1fr; }
  .gc-stack { grid-template-columns: repeat(2,1fr); }
  .gc-mobile-nav {
    display: grid; position: fixed; z-index: 40; left: 12px; right: 12px; bottom: max(12px, env(safe-area-inset-bottom));
    grid-template-columns: repeat(3,1fr); border: 1px solid var(--border); background: rgba(7,17,15,.92); backdrop-filter: blur(22px);
    border-radius: 20px; padding: 7px; box-shadow: var(--shadow-lg);
  }
  .gc-mobile-nav button { border: 0; background: transparent; color: var(--text-3); border-radius: 14px; padding: 10px 4px; font-size: 11px; display: grid; justify-items: center; gap: 4px; }
  .gc-mobile-nav button.is-active { color: var(--accent); background: var(--accent-soft); }
  .gc-mobile-nav svg { width: 19px; height: 19px; }
}

@media (max-width: 620px) {
  .gc-page { padding: 18px 16px 96px; }
  .gc-topbar { margin-bottom: 4px; }
  .gc-hero { min-height: 210px; padding-bottom: 24px; }
  .gc-hero::after { width: 70vw; right: -70px; opacity: .38; }
  .gc-kicker { font-size: 15px; }
  .gc-heading { max-width: 360px; font-size: 42px; }
  .gc-card__body { padding: 18px; }
  .gc-card h2 { font-size: 27px; }
  .gc-stack { grid-template-columns: 1fr; }
  .gc-action-card { min-height: 104px; }
  .gc-exercise-grid { grid-template-columns: 1fr; }
  .gc-stats { grid-template-columns: repeat(2,1fr); }
  .gc-row { grid-template-columns: 40px minmax(0,1fr); }
  .gc-row__right { display: none; }
  .gc-recent-row { grid-template-columns: 40px minmax(0,1fr) auto; }
  .gc-recent-row .gc-row__right { display: block; white-space: nowrap; }
  .gc-bpm-controls { grid-template-columns: repeat(4,1fr); }
}

@media (min-width: 901px) and (max-width: 1160px) {
  :root { --sidebar-w: 205px; }
  .gc-page { padding-inline: 28px; }
}


.gc-summary-title{width:min(100%,460px);margin:22px auto 0;text-align:left;display:grid;gap:7px}
.gc-summary-title label{font-size:12px;font-weight:750;color:var(--text-2)}
.gc-summary-title label span{font-weight:500;color:var(--text-3)}
.gc-summary-title input{width:100%;min-height:48px;border:1px solid var(--border);border-radius:14px;background:rgba(255,255,255,.035);color:var(--text);padding:0 13px;outline:none}
.gc-summary-title input:focus{border-color:var(--border-strong);box-shadow:0 0 0 3px rgba(89,225,176,.08)}