:root{
  --green:#173b2f;
  --green-2:#245744;
  --lime:#c9ef63;
  --cream:#f7f4ea;
  --white:#ffffff;
  --ink:#17201c;
  --muted:#6e7873;
  --line:#dfe5e1;
  --danger:#b84444;
  --warning:#c57a16;
  --shadow:0 14px 38px rgba(23,59,47,.10);
  --radius:20px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;min-height:100%}
body{margin:0;min-height:100vh;font-family:Inter,Segoe UI,Arial,sans-serif;background:#f3f6f4;color:var(--ink)}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
a{color:inherit;text-decoration:none}
.app-shell{min-height:100vh;display:grid;grid-template-columns:250px minmax(0,1fr);align-items:stretch}
.sidebar{background:var(--green);color:#fff;padding:24px 18px;display:flex;flex-direction:column;position:relative;height:auto;min-height:100vh;align-self:stretch}
.brand{display:flex;gap:12px;align-items:center;padding:0 8px 28px}
.brand strong{display:block;font-size:1.05rem}
.brand small{opacity:.7}
.brand-ball{width:42px;height:42px;border-radius:50%;background:var(--lime);color:var(--green);display:grid;place-items:center;font-size:1.5rem;box-shadow:inset -5px -4px 0 rgba(0,0,0,.08)}
nav{display:grid;gap:7px}
.nav-btn{border:0;background:transparent;color:rgba(255,255,255,.78);text-align:left;padding:12px 14px;border-radius:12px;display:flex;align-items:center;justify-content:space-between}
.nav-btn:hover,.nav-btn.active{background:rgba(255,255,255,.12);color:#fff}
.badge{background:var(--lime);color:var(--green);min-width:22px;height:22px;border-radius:99px;display:inline-grid;place-items:center;font-size:.75rem;font-weight:800}
.sidebar-footer{margin-top:auto;display:grid;gap:12px;padding:18px 8px 0}
.sidebar-footer small{opacity:.55;line-height:1.4}
.student-link{background:var(--lime);color:var(--green);padding:12px;border-radius:12px;text-align:center;font-weight:800}
.main{padding:28px;min-width:0}
.topbar{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:24px}
h1,h2,h3,p{margin-top:0}
h1{margin-bottom:0;font-size:2rem}
h2{font-size:2rem;margin-bottom:8px}
h3{margin-bottom:0;font-size:1.25rem}
.eyebrow{text-transform:uppercase;letter-spacing:.12em;font-size:.72rem;font-weight:800;color:var(--green-2);margin-bottom:7px}
.eyebrow.light{color:var(--lime)}
.coach-select-wrap{display:flex;align-items:center;gap:10px;background:#fff;padding:10px 14px;border:1px solid var(--line);border-radius:14px}
.coach-select-wrap label{font-size:.8rem;color:var(--muted);font-weight:700}
select,input,textarea{width:100%;border:1px solid var(--line);border-radius:12px;padding:11px 12px;background:#fff;color:var(--ink)}
textarea{min-height:90px;resize:vertical}
.view{display:none}
.view.active{display:block}
.hero-card{background:linear-gradient(135deg,var(--green),var(--green-2));color:#fff;border-radius:28px;padding:30px;display:flex;justify-content:space-between;gap:20px;align-items:center;box-shadow:var(--shadow)}
.hero-card p:last-child{margin-bottom:0;color:rgba(255,255,255,.75)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:20px 0}
.stat-card,.panel{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:var(--radius)}
.stat-card{padding:20px}
.stat-card span{display:block;color:var(--muted);font-size:.82rem;margin-bottom:8px}
.stat-card strong{font-size:1.65rem}
.content-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:20px}
.panel{padding:22px;overflow:hidden}
.panel-head{margin-bottom:18px}
.panel-head.split{display:flex;justify-content:space-between;align-items:center;gap:12px}
.primary-btn,.secondary-btn,.danger-btn,.ghost-btn{border:0;border-radius:12px;padding:11px 15px;font-weight:800}
.primary-btn{background:var(--green);color:#fff}
.primary-btn:hover{background:var(--green-2)}
.hero-card .primary-btn{background:var(--lime);color:var(--green)}
.secondary-btn{background:#eef3f0;color:var(--green)}
.danger-btn{background:#fdecec;color:var(--danger)}
.ghost-btn{background:transparent;color:var(--green);padding:8px 10px}
.quick-actions{display:grid;gap:10px}
.lesson-row,.request-card,.availability-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--line)}
.lesson-row:last-child,.request-card:last-child,.availability-row:last-child{border-bottom:0}
.lesson-row strong,.request-card strong{display:block}
.meta{color:var(--muted);font-size:.85rem;line-height:1.5}
.pill{display:inline-flex;align-items:center;border-radius:99px;padding:6px 10px;font-size:.75rem;font-weight:800;background:#edf3ef;color:var(--green)}
.pill.paid,.pill.approved{background:#e6f6df;color:#39712d}
.pill.pending,.pill.sent{background:#fff3d9;color:#966314}
.pill.overdue,.pill.declined{background:#fde8e8;color:#a43b3b}
.table-wrap{overflow:auto}
table{width:100%;border-collapse:collapse;min-width:760px}
th,td{text-align:left;padding:13px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
th{font-size:.76rem;text-transform:uppercase;letter-spacing:.06em;color:var(--muted)}
td{font-size:.9rem}
.row-actions{display:flex;gap:8px;flex-wrap:wrap}
.week-grid{display:grid;grid-template-columns:repeat(7,minmax(150px,1fr));gap:10px;overflow-x:auto;padding-bottom:8px}
.day-column{background:#f6f8f7;border:1px solid var(--line);border-radius:15px;padding:12px;min-height:310px}
.day-column h4{margin:0 0 12px}
.lesson-card{background:#fff;border-left:4px solid var(--green);border-radius:11px;padding:10px;margin-bottom:9px;box-shadow:0 5px 15px rgba(0,0,0,.05)}
.lesson-card .time{font-size:.76rem;color:var(--green);font-weight:800}
.lesson-card strong{display:block;margin:3px 0}
.notice{margin-top:14px;padding:12px;border-radius:12px;background:#eef6f1;line-height:1.45}
.notice.muted{color:var(--muted);background:#f7f8f7}
.empty{padding:28px;text-align:center;color:var(--muted);border:1px dashed var(--line);border-radius:14px}
.request-actions{display:flex;gap:8px;flex-wrap:wrap}
dialog{border:0;border-radius:20px;padding:0;width:min(560px,calc(100% - 30px));box-shadow:0 25px 80px rgba(0,0,0,.28)}
dialog::backdrop{background:rgba(11,31,24,.55)}
#modalForm{padding:22px}
.modal-head,.modal-actions{display:flex;align-items:center;justify-content:space-between;gap:12px}
.modal-head{margin-bottom:18px}
.modal-actions{justify-content:flex-end;margin-top:18px}
.icon-btn{border:0;background:#eef2ef;width:36px;height:36px;border-radius:50%;font-size:1.4rem}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.form-grid .full{grid-column:1/-1}
label.field{display:grid;gap:6px;font-size:.82rem;color:var(--muted);font-weight:700}
.checkbox-row{display:flex;gap:10px;align-items:center}
.checkbox-row input{width:auto}
@media(max-width:1000px){
  .app-shell{grid-template-columns:1fr}
  .sidebar{height:auto;min-height:100vh;position:relative}
  nav{grid-template-columns:repeat(3,1fr)}
  .sidebar-footer{display:none}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .content-grid{grid-template-columns:1fr}
}
@media(max-width:650px){
  .main{padding:18px}
  .topbar,.hero-card{align-items:stretch;flex-direction:column}
  nav{grid-template-columns:repeat(2,1fr)}
  .stat-grid{grid-template-columns:1fr 1fr}
  .panel{padding:16px}
  .form-grid{grid-template-columns:1fr}
  .form-grid .full{grid-column:auto}
}

/* Tennis Hub v4 feature additions */
.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:16px}.feature-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:var(--shadow)}.feature-card h3{margin:6px 0 10px}.feature-number{font-size:1.45rem;font-weight:900;color:var(--green);margin:14px 0}.voucher-code{padding:14px;margin:14px 0;border:2px dashed var(--green-2);border-radius:13px;text-align:center;font-weight:900;letter-spacing:.08em;background:#f3faf5}.deal-metrics{display:flex;gap:8px;flex-wrap:wrap}.deal-metrics span{background:#f2f5f3;padding:7px 9px;border-radius:99px;font-size:.75rem;color:var(--muted)}.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:14px;margin:18px 0}.price-card{border:1px solid var(--line);border-radius:17px;padding:18px;background:#fff}.price-card span,.price-card strong,.price-card small{display:block}.price-card strong{margin:8px 0}.price-card h3{color:var(--green);margin:10px 0}.price-card.selected{border:2px solid var(--green-2);background:#f4fbf6}.plan-current{background:linear-gradient(135deg,var(--green),var(--green-2));color:#fff;border-radius:22px;padding:22px;display:flex;align-items:center;justify-content:space-between;gap:18px}.plan-current .eyebrow,.plan-current .meta{color:#d6f0df}.plan-current h2{margin:5px 0}.plan-count{width:70px;height:70px;border-radius:50%;display:grid;place-items:center;background:var(--lime);color:var(--green);font-weight:950;font-size:1.55rem}.lesson-card.group{border-left-color:#8bb33e}.lesson-card.private{border-left-color:var(--green)}button:disabled{opacity:.55;cursor:not-allowed}@media(max-width:650px){.feature-grid,.pricing-grid{grid-template-columns:1fr}.plan-current{align-items:flex-start;flex-direction:column}}

/* Sophiq v6 full-height sidebar fix */
.app-shell{align-items:stretch}
.sidebar{position:relative!important;height:auto!important;min-height:100vh!important;align-self:stretch!important;background:var(--green)!important}