/* ════════════════════════════════════════════════════════════
   GymLink Owner Console — "Indigo Light" theme
   Light canvas, white cards, indigo accent, slate text.
   Variable names match the inline styles used in the Razor views.
   ════════════════════════════════════════════════════════════ */
:root{
  --bg:#f6f7fb;          /* app canvas */
  --bg-soft:#ffffff;     /* header */
  --sidebar:#ffffff;
  --card:#ffffff;
  --card-hover:#fafbff;
  --text:#1e2433;        /* slate ink */
  --muted:#6b7280;
  --border:#e6e8ef;
  --line:rgba(15,23,42,.06);   /* subtle fills / hover */
  --line-strong:rgba(15,23,42,.10);
  --primary:#4f46e5;     /* indigo */
  --primary-2:#6366f1;
  --primary-soft:rgba(79,70,229,.10);
  --primary-glow:rgba(79,70,229,.28);
  --success:#16a34a;--success-soft:rgba(22,163,74,.12);
  --warning:#d97706;--warning-soft:rgba(217,119,8,.12);
  --danger:#dc2626;--danger-soft:rgba(220,38,38,.12);
  --info:#7c8cff;--info-soft:rgba(99,102,241,.12);
  --radius-sm:8px;--radius-md:14px;--radius-lg:18px;
  --shadow:0 1px 2px rgba(16,24,40,.04),0 1px 3px rgba(16,24,40,.07);
  --shadow-lg:0 10px 30px rgba(16,24,40,.10);
  color-scheme:light
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;background:var(--bg);color:var(--text);font-family:'Inter',system-ui,sans-serif;-webkit-font-smoothing:antialiased}
button{font:inherit;border:0;cursor:pointer;background:none;color:inherit}
input,select,textarea{font:inherit;border:0;color:var(--text);background:transparent}
a{color:inherit;text-decoration:none}

.admin-shell{display:flex;height:100vh;overflow:hidden}

.sidebar{position:fixed;top:0;left:0;z-index:100;display:flex;flex-direction:column;width:260px;height:100vh;background:var(--sidebar);border-right:1px solid var(--border);transition:transform .3s cubic-bezier(.4,0,.2,1)}
.sidebar-brand{display:flex;align-items:center;gap:12px;padding:20px 20px 16px;border-bottom:1px solid var(--border)}
.brand-icon{width:40px;height:40px;border-radius:11px;background:linear-gradient(135deg,var(--primary),var(--primary-2));display:grid;place-items:center;font-weight:900;font-size:.85rem;color:#fff;flex-shrink:0;box-shadow:0 4px 12px var(--primary-glow)}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-text strong{font-size:.95rem;font-weight:800;letter-spacing:-.01em}
.brand-text span{font-size:.7rem;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.06em}
.brand-text span.console-tag{color:var(--primary)}
.sidebar-nav{flex:1;padding:14px 12px;display:flex;flex-direction:column;gap:3px;overflow-y:auto}
.nav-link{display:flex;align-items:center;gap:12px;padding:10px 14px;border-radius:10px;font-size:.875rem;font-weight:600;color:var(--muted);transition:all .18s ease}
.nav-link:hover{color:var(--text);background:var(--line)}
.nav-link.is-active{color:var(--primary);background:var(--primary-soft)}
.nav-link.is-active svg{stroke:var(--primary)}
.nav-link.disabled{opacity:.5;cursor:not-allowed}
.nav-link.disabled:hover{background:none;color:var(--muted)}
.nav-soon{margin-left:auto;font-size:.6rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);background:var(--line);padding:2px 6px;border-radius:99px}
.nav-divider{height:1px;background:var(--border);margin:10px 14px}
.sidebar-footer{padding:16px;border-top:1px solid var(--border)}
.admin-info{display:flex;align-items:center;gap:10px}
.admin-avatar{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--primary-2));display:grid;place-items:center;font-size:.75rem;font-weight:900;color:#fff;flex-shrink:0}
.admin-meta{display:flex;flex-direction:column;min-width:0}
.admin-meta strong{font-size:.82rem;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.admin-meta span{font-size:.7rem;color:var(--muted);font-weight:500}

.main-wrapper{flex:1;margin-left:260px;display:flex;flex-direction:column;height:100vh;overflow:hidden;transition:margin-left .3s cubic-bezier(.4,0,.2,1)}

.top-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:0 28px;height:64px;min-height:64px;background:var(--bg-soft);border-bottom:1px solid var(--border);flex-shrink:0}
.header-left{display:flex;align-items:center;gap:12px;flex:1;min-width:0}
.header-right{display:flex;align-items:center;gap:14px;flex-shrink:0}
.header-gym-name{font-size:.8rem;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;display:none}
@media(min-width:1100px){.header-gym-name{display:block}}
.header-avatar{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--primary),var(--primary-2));display:grid;place-items:center;font-size:.75rem;font-weight:900;color:#fff;cursor:pointer}

.main-content{flex:1;overflow-y:auto;padding:28px;scrollbar-width:thin;scrollbar-color:rgba(15,23,42,.18) transparent}
.main-content::-webkit-scrollbar{width:8px}
.main-content::-webkit-scrollbar-thumb{background:rgba(15,23,42,.16);border-radius:4px}

.page-header{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.page-header h1{font-size:1.6rem;font-weight:800;letter-spacing:-.02em}
.page-header p{color:var(--muted);font-size:.88rem;margin-top:2px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:10px;font-size:.85rem;font-weight:700;transition:all .18s ease;cursor:pointer;border:none;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 4px 14px var(--primary-glow)}
.btn-primary:hover{box-shadow:0 6px 20px var(--primary-glow);transform:translateY(-1px)}
.btn-secondary{background:var(--card);border:1px solid var(--border);color:var(--text);box-shadow:var(--shadow)}
.btn-secondary:hover{background:var(--card-hover);border-color:var(--line-strong)}
.btn-ghost{background:transparent;color:var(--muted);padding:10px 16px}
.btn-ghost:hover{color:var(--text);background:var(--line)}
.btn-sm{padding:8px 14px;font-size:.8rem}
.btn-block{width:100%}

.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow);transition:all .2s ease}
.card:hover{box-shadow:var(--shadow-lg);border-color:var(--line-strong)}
.card-body{padding:20px}
.card-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}
.card-header h3{font-size:.92rem;font-weight:700}

.kpi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}
.kpi-card{padding:20px;position:relative;overflow:hidden}
.kpi-card::after{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--primary),var(--primary-2))}
.kpi-card .kpi-label{font-size:.78rem;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:8px}
.kpi-card .kpi-value{font-size:1.8rem;font-weight:900;letter-spacing:-.02em;line-height:1}
.kpi-card .kpi-sub{font-size:.78rem;color:var(--muted);margin-top:6px;font-weight:500}
.kpi-card.success::after{background:var(--success)}
.kpi-card.warning::after{background:var(--warning)}
.kpi-card.danger::after{background:var(--danger)}
.kpi-delta{display:inline-flex;align-items:center;gap:4px;font-size:.74rem;font-weight:800;margin-top:8px;padding:2px 8px;border-radius:99px}
.kpi-delta.up{background:var(--success-soft);color:var(--success)}
.kpi-delta.down{background:var(--danger-soft);color:var(--danger)}

.data-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.data-table{width:100%;border-collapse:separate;border-spacing:0}
.data-table th{text-align:left;padding:12px 16px;font-size:.75rem;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border);white-space:nowrap;background:var(--bg)}
.data-table td{padding:14px 16px;font-size:.85rem;border-bottom:1px solid var(--border);vertical-align:middle}
.data-table tbody tr{transition:background .15s}
.data-table tbody tr:hover{background:var(--line)}
.data-table tbody tr:last-child td{border-bottom:0}

.badge{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:99px;font-size:.72rem;font-weight:700;letter-spacing:.02em}
.badge-active{background:var(--success-soft);color:var(--success)}
.badge-inactive{background:var(--line);color:var(--muted)}
.badge-danger{background:var(--danger-soft);color:var(--danger)}
.badge-trial{background:var(--info-soft);color:#5b63d6}
.badge-pastdue{background:var(--danger-soft);color:var(--danger)}
.badge-suspended{background:var(--line);color:var(--muted)}
.badge-onboarding{background:var(--warning-soft);color:var(--warning)}
.plan-pill{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:99px;font-size:.72rem;font-weight:800;letter-spacing:.02em;background:var(--primary-soft);color:var(--primary)}
.plan-pill .dot{width:7px;height:7px;border-radius:99px;background:var(--primary)}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
@media(max-width:1024px){.grid-3{grid-template-columns:1fr 1fr}}

.avatar{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;font-size:.78rem;font-weight:900;color:#fff;flex-shrink:0;background:linear-gradient(135deg,var(--primary),var(--primary-2))}
.avatar-sm{width:34px;height:34px;border-radius:9px;font-size:.7rem}
.client-row{display:flex;align-items:center;gap:12px;padding:12px 20px;transition:background .15s}
.client-row:hover{background:var(--line)}
.client-info{flex:1;min-width:0}
.client-name{font-size:.86rem;font-weight:700}
.client-sub{font-size:.76rem;color:var(--muted);margin-top:1px}

.bar-chart{display:flex;align-items:flex-end;gap:10px;height:180px;padding-top:10px}
.bar-col{flex:1;display:flex;flex-direction:column;align-items:center;gap:8px;height:100%;justify-content:flex-end}
.bar{width:100%;max-width:42px;border-radius:6px 6px 0 0;background:linear-gradient(180deg,var(--primary),rgba(99,102,241,.35));min-height:4px;transition:height .4s cubic-bezier(.4,0,.2,1)}
.bar-label{font-size:.72rem;color:var(--muted);font-weight:700}

.line-chart{width:100%;height:200px;display:block}
.line-chart .stroke{fill:none;stroke:var(--primary);stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round}
.line-chart .dot{fill:var(--primary);stroke:var(--card);stroke-width:2}
.line-chart .axis{font-size:10px;fill:var(--muted);font-weight:700}
.line-chart .grid-line{stroke:var(--border);stroke-width:1}

.meter{height:6px;border-radius:99px;background:var(--line);overflow:hidden;min-width:80px}
.meter span{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--primary),var(--primary-2))}

.activity-row{display:flex;gap:12px;padding:13px 20px;border-bottom:1px solid var(--border)}
.activity-row:last-child{border-bottom:0}
.activity-icon{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;flex-shrink:0}
.activity-icon svg{width:16px;height:16px}
.activity-icon.signup{background:var(--success-soft);color:var(--success)}
.activity-icon.trial{background:var(--info-soft);color:#5b63d6}
.activity-icon.upgrade{background:var(--primary-soft);color:var(--primary)}
.activity-icon.payment,.activity-icon.churn{background:var(--danger-soft);color:var(--danger)}
.activity-body{flex:1;min-width:0}
.activity-body strong{font-size:.84rem;font-weight:700}
.activity-body p{font-size:.8rem;color:var(--muted);margin-top:1px}
.activity-body time{font-size:.72rem;color:var(--muted);font-weight:600}

.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1px;background:var(--border);border-radius:var(--radius-md);overflow:hidden}
.info-cell{background:var(--card);padding:16px 18px}
.info-cell .k{font-size:.72rem;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.info-cell .v{font-size:.98rem;font-weight:800;margin-top:5px}

.gym-cell{display:flex;align-items:center;gap:11px}
.gym-cell .meta{min-width:0}
.gym-cell .meta strong{display:block;font-size:.86rem;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.gym-cell .meta span{display:block;font-size:.74rem;color:var(--muted)}

.section-title{font-size:.95rem;font-weight:800;margin:0 0 14px;letter-spacing:-.01em}

.form-group{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.form-label{font-size:.78rem;font-weight:700;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.form-input{width:100%;padding:11px 14px;background:var(--card);border:1px solid var(--border);border-radius:10px;font-size:.88rem;font-weight:500;transition:border-color .18s,box-shadow .18s}
.form-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.form-input::placeholder{color:#9aa1ad}
.field-error{color:var(--danger);font-size:.75rem;font-weight:600}

.action-toast{padding:11px 16px;border-radius:10px;background:var(--success-soft);color:var(--success);font-size:.84rem;font-weight:700;border:1px solid rgba(22,163,74,.22);margin-bottom:20px}
.alert-error{padding:11px 16px;border-radius:10px;background:var(--danger-soft);color:var(--danger);font-size:.84rem;font-weight:700;border:1px solid rgba(220,38,38,.22);margin-bottom:16px}

.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 20px;text-align:center;color:var(--muted)}
.empty-state h3{font-size:1rem;font-weight:700;color:var(--text);margin-bottom:4px}
.empty-state p{font-size:.85rem;max-width:320px}

@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.fade-in{animation:fadeIn .3s ease both}

/* ── Login screen ── */
.auth-screen{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 30% 20%,rgba(79,70,229,.12),transparent 42%),radial-gradient(circle at 80% 80%,rgba(99,102,241,.10),transparent 40%),var(--bg)}
.auth-card{width:min(420px,100%);background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-lg)}
.auth-brand{display:flex;align-items:center;gap:12px;margin-bottom:24px}
.auth-brand .brand-icon{width:46px;height:46px;font-size:1rem}
.auth-brand strong{font-size:1.05rem;font-weight:900;display:block}
.auth-brand span{font-size:.7rem;color:var(--primary);text-transform:uppercase;letter-spacing:.08em;font-weight:700}
.auth-card h1{font-size:1.3rem;font-weight:800;margin-bottom:4px}
.auth-card .auth-sub{color:var(--muted);font-size:.86rem;margin-bottom:22px}

/* Mobile Navigation & Responsive Drawer */
.mobile-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: var(--line);
  color: var(--text);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all .18s ease;
}
.mobile-nav-toggle:hover {
  background: var(--primary-soft);
  color: var(--primary);
}

.sidebar-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(4px);
  z-index: 90;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
}
.sidebar-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

@media(max-width:1024px){
  .mobile-nav-toggle{display:flex}
  .sidebar{transform:translateX(-100%);box-shadow:var(--shadow-lg);z-index:100}
  .sidebar.is-open{transform:translateX(0)}
  .main-wrapper{margin-left:0}
  .grid-2,.grid-3{grid-template-columns:1fr}
}
@media(max-width:640px){
  .main-content{padding:16px}
  .top-header{padding:0 16px}
  .kpi-grid{grid-template-columns:1fr}
  .page-header{flex-direction:column;align-items:flex-start}
}
@media(max-width:480px){.kpi-grid{grid-template-columns:1fr}}