/* ============================================================
   GYM — Mobile-first session tracker
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:         #0d1117;
  --surface:    #161c27;
  --surface-2:  #1e2535;
  --border:     #2a3347;
  --primary:    #004ef9;
  --text:       #e2e8f0;
  --text-muted: #64748b;
  --success:    #22c55e;
  --warning:    #f59e0b;
  --danger:     #ef4444;
  --radius:     12px;
}
[data-theme="light"] {
  --bg:         #f1f5f9;
  --surface:    #ffffff;
  --surface-2:  #f8fafc;
  --border:     #e2e8f0;
  --text:       #0f172a;
  --text-muted: #64748b;
}

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  min-height: 100dvh;
  overscroll-behavior: none;
}

.hidden { display: none !important; }

/* ── Header ─────────────────────────────────────────────────── */
.gym-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  padding-top: calc(12px + env(safe-area-inset-top, 0px));
}
.gym-title { flex: 1; font-size: 17px; font-weight: 700; }
.gym-header-right { display: flex; align-items: center; gap: 8px; }
.gym-icon-btn {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 17px;
  width: 38px;
  height: 38px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  flex-shrink: 0;
}
.gym-icon-btn:active { opacity: 0.65; }

/* ── Main views ──────────────────────────────────────────────── */
.gym-main { width: 100%; max-width: 520px; margin: 0 auto; }

/* ── Client list ─────────────────────────────────────────────── */
.gym-list { padding: 12px 12px 100px; }
.gym-loading, .gym-empty {
  color: var(--text-muted);
  text-align: center;
  padding: 48px 0;
  font-size: 15px;
}
.gym-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.gym-card:active { opacity: 0.8; }
.gym-card-left  { flex: 1; min-width: 0; }
.gym-card-name  { font-weight: 600; font-size: 16px; }
.gym-card-meta  { font-size: 12px; color: var(--text-muted); margin-top: 3px; }
.gym-card-right { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.gym-bal        { display: flex; flex-direction: column; align-items: center; min-width: 44px; }
.gym-bal-num    { font-size: 28px; font-weight: 700; line-height: 1; }
.gym-bal-label  { font-size: 11px; color: var(--text-muted); margin-top: 1px; }
.gym-bal--ok   .gym-bal-num  { color: var(--success); }
.gym-bal--warn .gym-bal-num  { color: var(--warning); }
.gym-bal--zero .gym-bal-num  { color: var(--danger); }

.gym-log-btn {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 16px;
  cursor: pointer;
  white-space: nowrap;
  min-height: 44px;
}
.gym-log-btn:active { opacity: 0.8; }
.gym-log-btn:disabled {
  background: var(--surface-2);
  color: var(--text-muted);
  cursor: not-allowed;
}

/* ── No-client placeholder ───────────────────────────────────── */
.gym-no-client {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 32px;
  gap: 10px;
  text-align: center;
}
.gym-no-client-icon  { font-size: 48px; margin-bottom: 4px; }
.gym-no-client-title { font-size: 18px; font-weight: 600; }
.gym-no-client-sub   { font-size: 14px; color: var(--text-muted); }
.gym-no-client-btn {
  margin-top: 12px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  cursor: pointer;
}
.gym-no-client-btn:active { opacity: 0.85; }

/* ── Drawer ──────────────────────────────────────────────────── */
.gym-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 200;
}
.gym-drawer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 280px;
  max-width: 85vw;
  background: var(--surface);
  border-right: 1px solid var(--border);
  z-index: 201;
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform 0.25s ease;
  padding-top: env(safe-area-inset-top, 0px);
}
.gym-drawer.open { transform: translateX(0); }
.gym-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.gym-drawer-title { font-size: 16px; font-weight: 700; }
.gym-drawer-list  { overflow-y: auto; flex: 1; padding: 0; }

/* Search */
.gym-search-wrap {
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  flex-shrink: 0;
}
.gym-search-input {
  width: 100%;
  box-sizing: border-box;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 15px;
  color: var(--text);
  outline: none;
  -webkit-appearance: none;
  transition: border-color 0.15s;
}
.gym-search-input:focus        { border-color: #7c3aed; }
.gym-search-input::placeholder { color: var(--text-muted); }

/* Accordion groups */
.gym-list-group { border-bottom: 1px solid rgba(255,255,255,0.07); }
.gym-list-group:last-child { border-bottom: none; }

.gym-list-group-header {
  width: 100%;
  background: none;
  border: none;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 16px;
  min-height: 52px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  cursor: pointer;
  gap: 10px;
  transition: background 0.12s, color 0.12s;
  -webkit-tap-highlight-color: transparent;
}
.gym-list-group-header:active          { background: rgba(255,255,255,0.04); }
.gym-list-group:not(.collapsed) > .gym-list-group-header { color: var(--text); }
.gym-list-group-label { flex: 1; }
.gym-list-group-count {
  background: rgba(255,255,255,0.08);
  border-radius: 999px;
  padding: 3px 9px;
  font-size: 12px;
  font-weight: 700;
  min-width: 26px;
  text-align: center;
  transition: background 0.15s;
}
.gym-list-group:not(.collapsed) > .gym-list-group-header .gym-list-group-count {
  background: rgba(124,58,237,0.25);
  color: #a78bfa;
}
.gym-list-group-chevron {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.5;
  transition: transform 0.2s ease, opacity 0.15s;
  -webkit-tap-highlight-color: transparent;
}
.gym-list-group.collapsed .gym-list-group-chevron { transform: rotate(-90deg); }
.gym-list-group.collapsed .gym-list-group-items   { display: none; }

.gym-drawer-item {
  width: 100%;
  background: none;
  border: none;
  border-left: 3px solid transparent;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 14px 13px;
  font-size: 15px;
  cursor: pointer;
  text-align: left;
  gap: 10px;
  transition: background 0.12s, border-color 0.12s;
  -webkit-tap-highlight-color: transparent;
}
.gym-drawer-item:active        { background: var(--surface-2); }
.gym-drawer-item.active        { background: rgba(124,58,237,0.12); border-left-color: #7c3aed; }
.gym-drawer-item.active .gym-drawer-item-name { font-weight: 600; }

/* Avatar */
.gym-item-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  opacity: 0.88;
}

/* Name + last-session */
.gym-item-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.gym-drawer-item-name { font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.gym-item-last {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.gym-drawer-bal { font-size: 13px; font-weight: 700; border-radius: 999px; padding: 3px 10px; flex-shrink: 0; min-width: 32px; text-align: center; }
.gym-drawer-bal--ok   { background: rgba(34,197,94,0.12);  color: var(--success); }
.gym-drawer-bal--warn { background: rgba(234,179,8,0.12);  color: var(--warning); }
.gym-drawer-bal--zero { background: rgba(239,68,68,0.12);  color: var(--danger); }

/* ── Detail view ─────────────────────────────────────────────── */
.gym-detail-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  padding: 14px 12px 0;
}
.gym-detail-tile {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.gym-detail-tile-num   { font-size: 28px; font-weight: 700; color: var(--text); line-height: 1; }
.gym-detail-tile-label { font-size: 11px; color: var(--text-muted); text-align: center; }
.gym-detail-tile-num.gym-bal--ok   { color: var(--success); }
.gym-detail-tile-num.gym-bal--zero { color: var(--danger); }

.gym-detail-log-btn {
  display: block;
  width: calc(100% - 24px);
  margin: 12px 12px 4px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  padding: 15px;
  cursor: pointer;
  text-align: center;
}
.gym-detail-log-btn:active   { opacity: 0.85; }
.gym-detail-log-btn:disabled { background: var(--surface-2); color: var(--text-muted); cursor: not-allowed; }

/* ── Sections ────────────────────────────────────────────────── */
.gym-section {
  margin: 10px 12px 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.gym-section-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 14px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}
.gym-section-header:active { background: var(--surface-2); }
.gym-section-badge {
  font-size: 11px;
  font-weight: 600;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 8px;
  color: var(--text-muted);
}
.gym-section-chev { margin-left: auto; color: var(--text-muted); font-size: 11px; }
.gym-section-body { border-top: 1px solid var(--border); }
.gym-section-body.collapsed { display: none; }

.gym-sec-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
}
.gym-sec-row:last-child { border-bottom: none; }
.gym-sec-row.dimmed { opacity: 0.45; }
.gym-sec-row-icon  { font-size: 18px; flex-shrink: 0; }
.gym-sec-row-body  { flex: 1; min-width: 0; }
.gym-sec-row-title { font-size: 13px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.gym-sec-row-sub   { font-size: 11px; color: var(--text-muted); margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.gym-sec-empty     { padding: 14px; font-size: 13px; color: var(--text-muted); text-align: center; }

/* ── Badges ──────────────────────────────────────────────────── */
.gym-badge {
  font-size: 11px;
  font-weight: 600;
  border-radius: 999px;
  padding: 3px 9px;
  white-space: nowrap;
  flex-shrink: 0;
}
.gym-badge-muted  { background: var(--surface-2); color: var(--text-muted); }
.gym-badge-red    { background: rgba(239,68,68,0.12); color: var(--danger); }
.gym-badge-yellow { background: rgba(245,158,11,0.12); color: var(--warning); }
.gym-badge-purple { background: rgba(109,40,217,0.12); color: #a78bfa; }
.gym-badge-blue   { background: rgba(59,130,246,0.12);  color: #60a5fa; }

/* ── Modal — positioned higher to clear browser chrome ──────── */
.gym-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 300;
  display: flex;
  align-items: flex-end;
  padding-bottom: 72px; /* clear browser nav bar */
}
.gym-modal-overlay.hidden { display: none; }
.gym-modal {
  background: var(--surface);
  border-radius: var(--radius);
  width: 100%;
  max-height: 78dvh;
  overflow-y: auto;
}
.gym-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px 12px;
  border-bottom: 1px solid var(--border);
}
.gym-modal-client-name { font-size: 17px; font-weight: 700; }
.gym-modal-close {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 18px;
  width: 36px;
  height: 36px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.gym-modal-body   { padding: 16px 18px; }
.gym-modal-footer { display: flex; gap: 10px; padding: 12px 18px; border-top: 1px solid var(--border); }

/* Form */
.gym-form-group { margin-bottom: 16px; }
.gym-form-group.hidden { display: none; }
.gym-form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}
.gym-form-group input[type="date"] {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 16px;
  padding: 10px 12px;
}

/* Outcome buttons */
.gym-outcome-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
}
.gym-outcome-btn {
  background: var(--surface-2);
  border: 2px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 13px;
  font-weight: 600;
  padding: 12px 6px;
  cursor: pointer;
  text-align: center;
  min-height: 64px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  line-height: 1.3;
}
.gym-outcome-btn:active           { opacity: 0.8; }
.gym-outcome-btn.sel-completed    { background: rgba(34,197,94,0.12);  border-color: var(--success); color: var(--success); }
.gym-outcome-btn.sel-resched      { background: rgba(96,165,250,0.12); border-color: #60a5fa;        color: #60a5fa; }
.gym-outcome-btn.sel-forfeit      { background: rgba(239,68,68,0.12);  border-color: var(--danger);  color: var(--danger); }

/* Who cancelled */
.gym-who-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.gym-who-btn {
  background: var(--surface-2);
  border: 2px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  padding: 14px 10px;
  cursor: pointer;
  text-align: center;
  min-height: 52px;
}
.gym-who-btn:active { opacity: 0.8; }
.gym-who-btn.sel { background: var(--primary); border-color: var(--primary); color: #fff; }

/* Preview */
.gym-preview {
  margin-top: 4px;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  text-align: center;
  border: 1px solid transparent;
}
.gym-preview:empty    { display: none; }
.gym-preview-green    { background: rgba(34,197,94,0.1);  color: var(--success); border-color: rgba(34,197,94,0.2); }
.gym-preview-yellow   { background: rgba(245,158,11,0.1); color: var(--warning); border-color: rgba(245,158,11,0.2); }
.gym-preview-red      { background: rgba(239,68,68,0.1);  color: var(--danger);  border-color: rgba(239,68,68,0.2); }

/* Footer buttons */
.gym-btn-primary {
  flex: 1;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  padding: 14px;
  cursor: pointer;
  min-height: 52px;
}
.gym-btn-primary:active   { opacity: 0.85; }
.gym-btn-secondary {
  flex: 0 0 auto;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
  padding: 14px 20px;
  cursor: pointer;
  min-height: 52px;
}
.gym-btn-secondary:active { opacity: 0.8; }

/* ── Toast ───────────────────────────────────────────────────── */
.gym-toast {
  position: fixed;
  bottom: calc(90px + env(safe-area-inset-bottom, 0px));
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 20px;
  font-size: 14px;
  font-weight: 500;
  z-index: 999;
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
  white-space: nowrap;
  pointer-events: none;
}
.gym-toast.show    { opacity: 1; transform: translateX(-50%) translateY(0); }
.gym-toast.success { border-color: rgba(34,197,94,0.4); }
.gym-toast.error   { border-color: rgba(239,68,68,0.4); }