/* ============================================================
   FleckFit Gym OS — app.css
   Tema: Arctic Slate — turquesa eléctrico + gris azulado
   Modo claro por defecto · oscuro via [data-theme="dark"]
   Sidebar colapsable via .ff-sidebar.is-collapsed
   ============================================================ */

:root {
  --ff-bg:         #EDF1F4;
  --ff-bg-soft:    #F2F6F8;
  --ff-panel:      #FFFFFF;
  --ff-panel-2:    #F7F9FA;
  --ff-line:       rgba(0,80,110,.16);
  --ff-line-md:    rgba(0,80,110,.26);
  --ff-text:       #141E24;
  --ff-muted:      #3D5566;
  --ff-muted-2:    #5A7080;

  --ff-sidebar:             #141E24;
  --ff-sidebar-border:      rgba(255,255,255,.06);
  --ff-sidebar-text:        rgba(255,255,255,.88);
  --ff-sidebar-muted:       rgba(255,255,255,.38);
  --ff-sidebar-hover:       rgba(255,255,255,.07);
  --ff-sidebar-active-bg:   rgba(0,168,200,.20);
  --ff-sidebar-active-text: #2DCFED;

  --ff-accent:      #00A8C8;
  --ff-accent-2:    #007E96;
  --ff-accent-bg:   rgba(0,168,200,.10);
  --ff-accent-text: #FFFFFF;

  --ff-success:    #0C3A45;
  --ff-success-bg: #E8F4F6;
  --ff-success-bd: #4A9EB0;
  --ff-warning:    #1A3A28;
  --ff-warning-bg: #F0F4F0;
  --ff-warning-bd: #7A9B88;
  --ff-danger:     #3A1A1E;
  --ff-danger-bg:  #F2EDEE;
  --ff-danger-bd:  #9B7A7E;
  --ff-info:       #0C2A3A;
  --ff-info-bg:    #E6F0F4;
  --ff-info-bd:    #5A9AB0;

  --ff-r-xl:   16px;
  --ff-r-lg:   12px;
  --ff-r-md:   8px;
  --ff-r-pill: 999px;
  --ff-sidebar-w:           200px;
  --ff-sidebar-w-collapsed:  56px;
  --ff-ease: .24s cubic-bezier(.4,0,.2,1);
}

[data-theme="dark"] {
  --ff-bg:         #0C1318;
  --ff-bg-soft:    #0E1820;
  --ff-panel:      #121B22;
  --ff-panel-2:    #0E1820;
  --ff-line:       rgba(45,207,237,.10);
  --ff-line-md:    rgba(45,207,237,.16);
  --ff-text:       #D4E6EF;
  --ff-muted:      #4A6A7A;
  --ff-muted-2:    #3A5464;

  --ff-sidebar:             #090E12;
  --ff-sidebar-border:      rgba(255,255,255,.04);
  --ff-sidebar-text:        rgba(255,255,255,.85);
  --ff-sidebar-muted:       rgba(255,255,255,.32);
  --ff-sidebar-hover:       rgba(255,255,255,.06);
  --ff-sidebar-active-bg:   rgba(0,168,200,.18);
  --ff-sidebar-active-text: #2DCFED;

  --ff-success:    #6EE7B7;
  --ff-success-bg: #041A12;
  --ff-success-bd: #065F46;
  --ff-warning:    #FCD34D;
  --ff-warning-bg: #1E1600;
  --ff-warning-bd: #92400E;
  --ff-danger:     #FCA5A5;
  --ff-danger-bg:  #180808;
  --ff-danger-bd:  #7F1D1D;
  --ff-info:       #67E8F9;
  --ff-info-bg:    #041620;
  --ff-info-bd:    #164E63;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "DM Sans", system-ui, -apple-system, sans-serif;
  font-size: 14px; line-height: 1.5;
  background: var(--ff-bg); color: var(--ff-text);
  -webkit-font-smoothing: antialiased;
  transition: background var(--ff-ease), color var(--ff-ease);
}
a { text-decoration: none; color: inherit; }
button, input, select, textarea { font: inherit; }
textarea { resize: vertical; }

/* ── Layout ── */
.ff-app {
  min-height: 100vh;
  display: grid;
  grid-template-columns: var(--ff-sidebar-w) 1fr;
  transition: grid-template-columns var(--ff-ease);
}
.ff-app.sidebar-collapsed {
  grid-template-columns: var(--ff-sidebar-w-collapsed) 1fr;
}

/* ── Sidebar ── */
.ff-sidebar {
  background: var(--ff-sidebar);
  width: var(--ff-sidebar-w);
  display: flex; flex-direction: column;
  padding: 18px 0;
  position: sticky; top: 0; height: 100vh;
  overflow: hidden;
  border-right: 1px solid var(--ff-sidebar-border);
  transition: width var(--ff-ease);
  flex-shrink: 0;
}
.ff-sidebar.is-collapsed { width: var(--ff-sidebar-w-collapsed); }

.ff-brand {
  display: flex; align-items: center; gap: 10px;
  padding: 0 14px 16px;
  border-bottom: 1px solid var(--ff-sidebar-border);
  margin-bottom: 10px;
  overflow: hidden; white-space: nowrap; text-decoration: none;
}
.ff-brand-mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: var(--ff-accent);
  display: grid; place-items: center;
  font-size: 14px; font-weight: 700;
  color: var(--ff-accent-text); flex-shrink: 0;
}
.ff-brand-copy { overflow: hidden; transition: opacity var(--ff-ease), width var(--ff-ease); }
.ff-sidebar.is-collapsed .ff-brand-copy { opacity: 0; width: 0; }
.ff-brand-name { font-size: 14px; font-weight: 500; color: var(--ff-sidebar-text); letter-spacing: -.2px; }
.ff-brand-sub  { font-size: 10px; color: var(--ff-sidebar-muted); margin-top: 1px; }

.ff-gym-badge {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 10px; margin: 0 10px 10px;
  background: rgba(255,255,255,.05);
  border: 1px solid var(--ff-sidebar-border);
  border-radius: var(--ff-r-md);
  overflow: hidden; white-space: nowrap;
  transition: padding var(--ff-ease);
}
.ff-sidebar.is-collapsed .ff-gym-badge { padding: 7px; justify-content: center; }
.ff-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.ff-dot-live { background: #34D399; }
.ff-gym-info { overflow: hidden; transition: opacity var(--ff-ease), width var(--ff-ease); }
.ff-sidebar.is-collapsed .ff-gym-info { opacity: 0; width: 0; }
.ff-gym-name { font-size: 11px; font-weight: 500; color: var(--ff-sidebar-text); }
.ff-gym-slug { font-size: 10px; color: var(--ff-sidebar-muted); margin-top: 1px; }

.ff-nav { display: flex; flex-direction: column; padding: 0 10px; flex: 1; overflow: hidden; }
.ff-nav-label {
  font-size: 9px; font-weight: 500;
  text-transform: uppercase; letter-spacing: .08em;
  color: var(--ff-sidebar-muted);
  padding: 8px 8px 4px;
  overflow: hidden; white-space: nowrap;
  transition: opacity var(--ff-ease);
}
.ff-sidebar.is-collapsed .ff-nav-label { opacity: 0; height: 0; padding: 0; margin: 0; }

.ff-nav-link {
  display: flex; align-items: center; gap: 9px;
  padding: 8px 10px; border-radius: var(--ff-r-md);
  font-size: 12px; color: var(--ff-sidebar-muted);
  transition: background .12s, color .12s, padding var(--ff-ease);
  margin-bottom: 1px; white-space: nowrap; overflow: hidden;
  text-decoration: none;
}
.ff-sidebar.is-collapsed .ff-nav-link {
  padding: 8px;
  justify-content: center;
  position: relative;
}
.ff-sidebar.is-collapsed .ff-nav-link::after {
  content: attr(title);
  position: absolute;
  left: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--ff-text);
  color: var(--ff-bg);
  font-size: 11px;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: var(--ff-r-md);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity .15s;
  z-index: 100;
}
.ff-sidebar.is-collapsed .ff-nav-link:hover::after { opacity: 1; }
.ff-nav-link:hover { background: var(--ff-sidebar-hover); color: var(--ff-sidebar-text); }
.ff-nav-link.is-active { background: var(--ff-sidebar-active-bg); color: var(--ff-sidebar-active-text); font-weight: 500; }
.ff-nav-link.ff-nav-soon { opacity: .35; pointer-events: none; }

.ff-nav-icon { width: 15px; height: 15px; flex-shrink: 0; }
.ff-nav-text { transition: opacity var(--ff-ease), width var(--ff-ease); overflow: hidden; }
.ff-sidebar.is-collapsed .ff-nav-text { opacity: 0; width: 0; }
.ff-soon-pill {
  margin-left: auto; font-size: 9px; font-weight: 500;
  padding: 2px 5px; border-radius: var(--ff-r-pill);
  background: rgba(255,255,255,.08); color: var(--ff-sidebar-muted);
  flex-shrink: 0;
  transition: opacity var(--ff-ease), width var(--ff-ease); overflow: hidden;
}
.ff-sidebar.is-collapsed .ff-soon-pill { opacity: 0; width: 0; }

/* Collapse toggle */
.ff-collapse-btn {
  display: flex; align-items: center; gap: 8px;
  margin: 8px 10px 0; padding: 7px 10px;
  border-radius: var(--ff-r-md);
  background: rgba(255,255,255,.05);
  border: 1px solid var(--ff-sidebar-border);
  color: var(--ff-sidebar-muted); font-size: 11px;
  cursor: pointer; white-space: nowrap; overflow: hidden;
  transition: background .15s, color .15s, padding var(--ff-ease);
}
.ff-sidebar.is-collapsed .ff-collapse-btn { padding: 7px; justify-content: center; }
.ff-collapse-btn:hover { background: rgba(255,255,255,.09); color: var(--ff-sidebar-text); }
.ff-collapse-icon { width: 14px; height: 14px; flex-shrink: 0; transition: transform var(--ff-ease); }
.ff-sidebar.is-collapsed .ff-collapse-icon { transform: rotate(180deg); }
.ff-collapse-label { transition: opacity var(--ff-ease), width var(--ff-ease); overflow: hidden; }
.ff-sidebar.is-collapsed .ff-collapse-label { opacity: 0; width: 0; }

/* Sidebar bottom */
.ff-sidebar-bottom {
  margin-top: auto; padding: 10px 10px 0;
  border-top: 1px solid var(--ff-sidebar-border);
  display: flex; flex-direction: column; gap: 6px;
}
.ff-user-card {
  display: flex; align-items: center; gap: 9px;
  padding: 6px 10px; overflow: hidden; white-space: nowrap;
  transition: padding var(--ff-ease);
}
.ff-sidebar.is-collapsed .ff-user-card { padding: 6px; justify-content: center; }
.ff-user-avatar {
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--ff-accent);
  display: grid; place-items: center;
  font-size: 10px; font-weight: 600;
  color: var(--ff-accent-text); flex-shrink: 0;
}
.ff-user-meta { overflow: hidden; transition: opacity var(--ff-ease), width var(--ff-ease); }
.ff-sidebar.is-collapsed .ff-user-meta { opacity: 0; width: 0; }
.ff-user-role  { font-size: 9px; text-transform: uppercase; letter-spacing: .06em; color: var(--ff-sidebar-muted); }
.ff-user-email { font-size: 10px; color: rgba(255,255,255,.65); overflow: hidden; text-overflow: ellipsis; }

/* Dark mode toggle */
.ff-theme-toggle {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 10px; overflow: hidden; white-space: nowrap;
  transition: padding var(--ff-ease);
}
.ff-sidebar.is-collapsed .ff-theme-toggle { padding: 6px; justify-content: center; }
.ff-theme-label {
  font-size: 11px; color: var(--ff-sidebar-muted);
  transition: opacity var(--ff-ease), width var(--ff-ease); overflow: hidden;
}
.ff-sidebar.is-collapsed .ff-theme-label { opacity: 0; width: 0; }
.ff-toggle-track {
  width: 32px; height: 18px; border-radius: var(--ff-r-pill);
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.12);
  position: relative; cursor: pointer; transition: background .2s; flex-shrink: 0;
}
.ff-toggle-track.is-on { background: var(--ff-accent); border-color: var(--ff-accent-2); }
.ff-toggle-thumb {
  width: 12px; height: 12px; border-radius: 50%; background: #fff;
  position: absolute; top: 2px; left: 2px; transition: transform .2s;
}
.ff-toggle-track.is-on .ff-toggle-thumb { transform: translateX(14px); }

/* ── Main ── */
.ff-main { min-width: 0; display: flex; flex-direction: column; }
.ff-topbar {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 16px; padding: 22px 26px 0;
}
.ff-page-title    { margin: 0; font-size: 20px; font-weight: 500; letter-spacing: -.4px; color: var(--ff-text); }
.ff-page-subtitle { margin-top: 3px; color: var(--ff-muted); font-size: 13px; }
.ff-topbar-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.ff-content { padding: 18px 26px 32px; }

/* ── Flashes ── */
.ff-flashes { display: flex; flex-direction: column; gap: 8px; margin-bottom: 14px; }
.ff-alert { padding: 10px 14px; border-radius: var(--ff-r-md); font-size: 13px; font-weight: 500; border: 1px solid; }
.ff-alert-success { color: var(--ff-success); background: var(--ff-success-bg); border-color: var(--ff-success-bd); }
.ff-alert-error   { color: var(--ff-danger);  background: var(--ff-danger-bg);  border-color: var(--ff-danger-bd); }
.ff-alert-info    { color: var(--ff-info);    background: var(--ff-info-bg);    border-color: var(--ff-info-bd); }

/* ── Botones ── */
.ff-btn {
  display: inline-flex; align-items: center; justify-content: center;
  height: 36px; padding: 0 14px; border-radius: var(--ff-r-md);
  border: 1px solid transparent; cursor: pointer;
  font-size: 13px; font-weight: 500;
  transition: opacity .15s; white-space: nowrap;
}
.ff-btn:hover { opacity: .85; }
.ff-btn:active { opacity: .70; }
.ff-btn-primary   { background: var(--ff-accent); color: var(--ff-accent-text); border-color: var(--ff-accent-2); }
.ff-btn-secondary { background: var(--ff-panel); color: var(--ff-text); border-color: var(--ff-line-md); }
.ff-btn-ghost     { background: transparent; color: var(--ff-muted); border-color: var(--ff-line); }
.ff-btn-dark      { background: rgba(255,255,255,.08); color: rgba(255,255,255,.8); border-color: rgba(255,255,255,.1); font-size: 12px; height: 32px; }
.ff-btn-block     { width: 100%; }

/* ── Cards ── */
.ff-card        { background: var(--ff-panel); border: 1px solid var(--ff-line); border-radius: var(--ff-r-lg); transition: background var(--ff-ease), border-color var(--ff-ease); }
.ff-card-header { padding: 14px 18px 0; }
.ff-card-title  { font-size: 14px; font-weight: 500; color: var(--ff-text); }
.ff-card-body   { padding: 16px 18px; }

/* ── Grid ── */
.ff-grid   { display: grid; gap: 14px; }
.ff-grid-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.ff-grid-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.ff-grid-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }

/* ── Stats ── */
.ff-stat       { padding: 16px 18px; }
.ff-stat-label { font-size: 11px; font-weight: 500; text-transform: uppercase; letter-spacing: .05em; color: var(--ff-muted); }
.ff-stat-value { margin-top: 8px; font-size: 26px; font-weight: 500; letter-spacing: -.5px; font-family: "DM Mono", monospace; color: var(--ff-text); }
.ff-stat-sub   { margin-top: 4px; font-size: 12px; color: var(--ff-muted); }

/* ── Dashboard rows ── */
.ff-section-title { margin: 0; font-size: 14px; font-weight: 500; color: var(--ff-text); }
.ff-section-sub   { margin-top: 3px; color: var(--ff-muted); font-size: 12px; }
.ff-stack         { display: flex; flex-direction: column; gap: 8px; }
.ff-alert-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; padding: 11px 14px; border-radius: var(--ff-r-md); border: 1px solid var(--ff-line); background: var(--ff-panel-2); }
.ff-alert-row.is-warning { background: var(--ff-warning-bg); border-color: var(--ff-warning-bd); }
.ff-alert-row.is-danger  { background: var(--ff-danger-bg);  border-color: var(--ff-danger-bd); }
.ff-alert-row.is-success { background: var(--ff-success-bg); border-color: var(--ff-success-bd); }
.ff-alert-title { font-size: 13px; font-weight: 500; color: var(--ff-text); }
.ff-alert-text  { margin-top: 2px; color: var(--ff-muted); font-size: 12px; }
.ff-kpi-badge { min-width: 30px; height: 30px; padding: 0 9px; border-radius: var(--ff-r-pill); background: var(--ff-panel); border: 1px solid var(--ff-line-md); display: inline-flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 500; font-family: "DM Mono", monospace; color: var(--ff-text); flex-shrink: 0; }

/* ── Toolbar ── */
.ff-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 14px; }
.ff-toolbar-left, .ff-toolbar-right { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

/* ── Search ── */
.ff-search { position: relative; }
.ff-search-icon { position: absolute; left: 10px; top: 50%; transform: translateY(-50%); color: var(--ff-muted-2); pointer-events: none; display: flex; }

/* ── Inputs ── */
.ff-input, .ff-select {
  width: 100%; height: 36px; padding: 0 12px;
  border-radius: var(--ff-r-md); border: 1px solid var(--ff-line-md);
  background: var(--ff-panel); color: var(--ff-text);
  outline: none; font-size: 13px;
  transition: border-color .15s, box-shadow .15s, background var(--ff-ease);
}
.ff-input.ff-input-search { padding-left: 32px; min-width: 240px; }
.ff-input:focus, .ff-select:focus { border-color: var(--ff-accent); box-shadow: 0 0 0 3px var(--ff-accent-bg); }
.ff-textarea { height: auto; padding: 9px 12px; line-height: 1.5; }

/* ── Filter chips ── */
.ff-filter-chip { display: inline-flex; align-items: center; height: 30px; padding: 0 11px; border-radius: var(--ff-r-pill); border: 1px solid var(--ff-line-md); background: var(--ff-panel); color: var(--ff-muted); font-size: 12px; cursor: pointer; transition: all .15s; text-decoration: none; }
.ff-filter-chip:hover { color: var(--ff-text); border-color: var(--ff-accent); }
.ff-filter-chip.is-active { background: var(--ff-accent); color: #fff; border-color: var(--ff-accent-2); }

/* ── Table ── */
.ff-table-wrap { overflow-x: auto; }
.ff-table { width: 100%; border-collapse: collapse; }
.ff-table th, .ff-table td { padding: 10px 12px; border-bottom: 1px solid var(--ff-line); text-align: left; vertical-align: middle; }
.ff-table th { color: var(--ff-muted); font-size: 11px; font-weight: 500; letter-spacing: .05em; text-transform: uppercase; }
.ff-table td { font-size: 13px; color: var(--ff-text); }
.ff-table tbody tr:hover td { background: var(--ff-bg); }
.ff-table-footer { padding: 10px 12px 0; font-size: 12px; color: var(--ff-muted); }

/* ── Pills ── */
.ff-pill { display: inline-flex; align-items: center; height: 22px; padding: 0 9px; border-radius: var(--ff-r-pill); font-size: 11px; font-weight: 500; border: 1px solid transparent; }
.ff-pill-active   { color: var(--ff-success); background: var(--ff-success-bg); border-color: var(--ff-success-bd); }
.ff-pill-inactive { color: var(--ff-muted); background: var(--ff-panel-2); border-color: var(--ff-line-md); }
.ff-pill-warning  { color: var(--ff-warning); background: var(--ff-warning-bg); border-color: var(--ff-warning-bd); }
.ff-pill-danger   { color: var(--ff-danger); background: var(--ff-danger-bg); border-color: var(--ff-danger-bd); }
.ff-pill-info     { color: var(--ff-info); background: var(--ff-info-bg); border-color: var(--ff-info-bd); }

/* ── Member avatar ── */
.ff-member-avatar { width: 30px; height: 30px; border-radius: 50%; background: var(--ff-accent-bg); color: var(--ff-accent); display: grid; place-items: center; font-size: 12px; font-weight: 500; flex-shrink: 0; }

/* ── Action link ── */
.ff-action-link { font-size: 13px; font-weight: 500; color: var(--ff-accent); }
.ff-action-link:hover { color: var(--ff-accent-2); }

/* ── Form layout ── */
.ff-form-layout { display: grid; grid-template-columns: minmax(0,1fr) 260px; gap: 16px; align-items: start; }
.ff-form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.ff-form-group { display: flex; flex-direction: column; gap: 6px; }
.ff-form-group-full { grid-column: 1 / -1; }
.ff-label { font-size: 12px; font-weight: 500; color: var(--ff-text); }
.ff-form-actions { display: flex; gap: 8px; margin-top: 18px; flex-wrap: wrap; }

/* ── Info rows ── */
.ff-info-row { display: flex; align-items: center; justify-content: space-between; padding: 7px 0; border-bottom: 1px solid var(--ff-line); font-size: 13px; }
.ff-info-row:last-child { border-bottom: none; }
.ff-info-label { color: var(--ff-muted); font-size: 12px; }

/* ── Auth ── */
.ff-auth-wrap { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: var(--ff-bg); }
.ff-auth-card { width: min(100%, 420px); background: var(--ff-panel); border: 1px solid var(--ff-line-md); border-radius: var(--ff-r-xl); padding: 28px; }
.ff-auth-brand    { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.ff-auth-title    { margin: 0; font-size: 22px; font-weight: 500; letter-spacing: -.4px; color: var(--ff-text); }
.ff-auth-subtitle { margin: 6px 0 0; color: var(--ff-muted); font-size: 13px; }
.ff-auth-form     { margin-top: 20px; display: grid; gap: 12px; }
.ff-auth-foot     { margin-top: 16px; color: var(--ff-muted-2); font-size: 11px; text-align: center; }


/* ── Icon buttons ── */
.ff-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px; height: 30px;
  border-radius: var(--ff-r-md);
  color: var(--ff-muted);
  border: 1px solid transparent;
  transition: background .15s, color .15s, border-color .15s;
  position: relative;
  text-decoration: none;
}
.ff-icon-btn:hover {
  background: var(--ff-accent-bg);
  color: var(--ff-accent);
  border-color: var(--ff-info-bd);
}
.ff-icon-btn::after {
  content: attr(title);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--ff-text);
  color: var(--ff-bg);
  font-size: 11px;
  font-weight: 500;
  padding: 4px 8px;
  border-radius: var(--ff-r-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity .15s;
}
.ff-icon-btn:hover::after { opacity: 1; }

/* ── Utils ── */
.ff-muted { color: var(--ff-muted); }
.ff-mono  { font-family: "DM Mono", monospace; }
.ff-empty { padding: 24px; text-align: center; color: var(--ff-muted); font-size: 13px; }

/* ── Responsive ── */

/* Stats 2x2 en pantallas medianas */
@media (max-width: 1200px) {
  .ff-grid-4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
}

/* Laptop estándar 1366px y menores:
   Se añade clase .auto-collapsed via JS al cargar.
   El usuario puede expandir manualmente con el botón Colapsar. */
.ff-app.auto-collapsed {
  grid-template-columns: var(--ff-sidebar-w-collapsed) 1fr;
}
.ff-app.auto-collapsed .ff-sidebar {
  width: var(--ff-sidebar-w-collapsed);
}
.ff-app.auto-collapsed .ff-brand-copy,
.ff-app.auto-collapsed .ff-gym-info,
.ff-app.auto-collapsed .ff-nav-text,
.ff-app.auto-collapsed .ff-collapse-label,
.ff-app.auto-collapsed .ff-theme-label,
.ff-app.auto-collapsed .ff-user-meta  { opacity: 0; width: 0; overflow: hidden; }
.ff-app.auto-collapsed .ff-nav-label  { opacity: 0; height: 0; padding: 0; margin: 0; }
.ff-app.auto-collapsed .ff-gym-badge  { padding: 7px; justify-content: center; }
.ff-app.auto-collapsed .ff-nav-link   { padding: 8px; justify-content: center; gap: 0; }
.ff-app.auto-collapsed .ff-collapse-btn { padding: 8px; justify-content: center; gap: 0; }
.ff-app.auto-collapsed .ff-user-card  { justify-content: center; padding: 8px 0; }
.ff-app.auto-collapsed .ff-theme-toggle { justify-content: center; padding: 6px 0; }
.ff-app.auto-collapsed .ff-sidebar-bottom .ff-nav-link { justify-content: center; padding: 8px; }

/* Tablet portrait: sidebar desaparece */
@media (max-width: 860px) {
  .ff-app, .ff-app.sidebar-collapsed { grid-template-columns: 1fr; }
  .ff-sidebar { display: none; }
  .ff-topbar  { padding: 18px 16px 0; }
  .ff-content { padding: 14px 16px 28px; }
  .ff-form-layout { grid-template-columns: 1fr; }
}

/* Móvil */
@media (max-width: 640px) {
  .ff-grid-2, .ff-grid-3, .ff-grid-4, .ff-form-grid { grid-template-columns: 1fr; }
  .ff-topbar { flex-direction: column; align-items: flex-start; }
  .ff-page-title { font-size: 18px; }
  .ff-input.ff-input-search { min-width: unset; width: 100%; }
  .ff-topbar-actions { flex-wrap: wrap; gap: 6px; }
}