:root {
    --bg-primary: #0A0D12; --bg-surface: #121721; --bg-elevated: #1A2130; --border-subtle: #242E42;
    --accent-volt: #CCFF00; --accent-volt-dim: rgba(204,255,0,0.14); --text-main: #F9FAFB; --text-muted: #9CA3AF;
    --status-ok: #10B981; --status-warn: #F59E0B; --status-danger: #EF4444;
    --radius-card: 16px; --radius-btn: 12px; --safe-bottom: env(safe-area-inset-bottom, 0px);
}
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; width: 100%; max-width: 100vw; overflow-x: hidden; background: var(--bg-primary); color: var(--text-main); font-family: system-ui, -apple-system, sans-serif; }
.brand-mark { font-weight: 900; letter-spacing: 1.5px; font-size: 1.35rem; }
.brand-mark span { color: var(--accent-volt); }
.btn { min-height: 46px; padding: 10px 18px; border-radius: var(--radius-btn); border: 1px solid transparent; font-weight: 700; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 8px; }
.btn-primary { background: var(--accent-volt); color: #0A0D12; }
.btn-secondary { background: var(--bg-elevated); color: var(--text-main); border-color: var(--border-subtle); }
.btn-danger { background: rgba(239,68,68,0.18); color: #FCA5A5; }
.btn-block { width: 100%; }
.form-group { margin-bottom: 12px; }
.form-label { display: block; font-size: 0.82rem; color: var(--text-muted); margin-bottom: 4px; font-weight: 600; }
.form-control { width: 100%; min-height: 44px; padding: 8px 12px; border-radius: 10px; border: 1px solid var(--border-subtle); background: #0D1118; color: var(--text-main); }
.v-card { background: var(--bg-surface); border: 1px solid var(--border-subtle); border-radius: var(--radius-card); padding: 18px; margin-bottom: 14px; }
.badge { display: inline-flex; padding: 4px 10px; border-radius: 999px; font-size: 0.74rem; font-weight: 700; }
.badge-activa { background: rgba(16,185,129,0.2); color: #34D399; }
.badge-proxima { background: rgba(245,158,11,0.2); color: #FBBF24; }
.badge-inactiva { background: rgba(239,68,68,0.2); color: #F87171; }
.badge-ai { background: var(--accent-volt-dim); color: var(--accent-volt); border: 1px solid var(--accent-volt); }
.client-shell { max-width: 480px; margin: 0 auto; min-height: 100dvh; padding: 16px 14px calc(84px + var(--safe-bottom)); }
.client-topbar { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.client-bottom-nav { position: fixed; bottom: 0; left: 0; right: 0; height: calc(66px + var(--safe-bottom)); background: rgba(18,23,33,0.96); border-top: 1px solid var(--border-subtle); display: grid; grid-template-columns: repeat(5, 1fr); z-index: 99; }
.nav-item-mob { background: none; border: none; color: var(--text-muted); display: flex; flex-direction: column; align-items: center; justify-content: center; font-size: 0.72rem; font-weight: 600; cursor: pointer; }
.nav-item-mob.active { color: var(--accent-volt); }
.coach-shell { display: grid; grid-template-columns: 250px 1fr; min-height: 100vh; }
.coach-sidebar { background: var(--bg-surface); border-right: 1px solid var(--border-subtle); padding: 20px 14px; display: flex; flex-direction: column; gap: 6px; }
.coach-nav-btn { width: 100%; text-align: left; padding: 10px 12px; border-radius: 10px; background: transparent; border: none; color: var(--text-muted); font-weight: 600; cursor: pointer; }
.coach-nav-btn.active, .coach-nav-btn:hover { background: var(--accent-volt-dim); color: var(--accent-volt); }
.coach-main { padding: 26px 32px; overflow-x: auto; }
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-bottom: 20px; }
.kpi-card { background: var(--bg-surface); border: 1px solid var(--border-subtle); border-radius: 14px; padding: 14px; }
.kpi-value { font-size: 1.65rem; font-weight: 900; color: var(--accent-volt); }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.data-table th, .data-table td { padding: 10px 12px; border-bottom: 1px solid var(--border-subtle); text-align: left; }
.tabs-bar { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.tab-pill { padding: 8px 12px; border-radius: 8px; background: var(--bg-elevated); border: 1px solid var(--border-subtle); color: var(--text-muted); font-weight: 600; cursor: pointer; }
.tab-pill.active { background: var(--accent-volt); color: #0A0D12; }
.empty-state { text-align: center; padding: 28px; color: var(--text-muted); border: 1px dashed var(--border-subtle); border-radius: var(--radius-card); }
@media (max-width: 960px) { .coach-shell { grid-template-columns: 1fr; } .coach-sidebar { flex-direction: row; overflow-x: auto; } }