:root{
  --bg:#0f172a; --panel:#111827; --card:#ffffff; --muted:#6b7280;
  --line:#e5e7eb; --text:#0f172a; --sub:#475569;
  --accent:#22c55e; --accent-dark:#16a34a;
  --warn:#f59e0b; --danger:#ef4444; --info:#3b82f6;
  --radius:16px;
  --shadow:0 1px 2px rgba(15,23,42,.06), 0 8px 24px rgba(15,23,42,.06);
  --appbar-h:56px;
  --tabbar-h:64px;
}
*{box-sizing:border-box}
[hidden] { display: none !important; }
html,body{margin:0;padding:0;height:100%;overflow:hidden}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  background:#f1f5f9;color:var(--text);-webkit-font-smoothing:antialiased;
  overscroll-behavior:none;
}
#app{
  height:100vh;height:100dvh;overflow-y:auto;-webkit-overflow-scrolling:touch;
  overscroll-behavior-y:contain;
  padding-bottom:calc(var(--tabbar-h) + env(safe-area-inset-bottom));
}
#app.no-tabs{padding-bottom:env(safe-area-inset-bottom)}
button{font:inherit;cursor:pointer}
input,textarea,select{font:inherit}

/* ---- App bar ---- */
.appbar{
  position:sticky;top:0;z-index:20;
  background:var(--bg);color:#fff;
  min-height:calc(var(--appbar-h) + env(safe-area-inset-top));
  padding:calc(12px + env(safe-area-inset-top)) 16px 12px;
  display:flex;align-items:center;gap:10px;
}
.appbar .brand{display:flex;align-items:center;gap:8px;font-weight:700;flex:1;justify-content:center}
.appbar .brand .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(34,197,94,.2)}
.appbar .brand .name{font-size:16px}
.appbar .back{background:transparent;border:0;color:#fff;font-size:15px;display:flex;align-items:center;gap:4px;padding:6px 8px;border-radius:8px}
.appbar .back:hover{background:rgba(255,255,255,.08)}
.appbar .who{font-size:12px;opacity:.8;font-weight:500;position:absolute;right:56px;top:50%;transform:translateY(-50%);margin-top:env(safe-area-inset-top)}
.appbar .icon-btn{background:transparent;border:0;color:#fff;padding:8px;border-radius:8px;display:flex;align-items:center}
.appbar .icon-btn:hover{background:rgba(255,255,255,.08)}
.appbar.has-back{justify-content:space-between}
.appbar.has-back .brand{display:none}

/* ---- Layout ---- */
.container{padding:16px;max-width:720px;margin:0 auto}
.section-title{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);margin:22px 4px 8px;font-weight:600}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;margin-bottom:12px}
.card.tight{padding:12px}
.card h2{margin:0 0 6px;font-size:17px}
.card h3{margin:0 0 8px;font-size:15px}
.card p{margin:6px 0;color:var(--sub);font-size:14px;line-height:1.45}
.row{display:flex;align-items:center;gap:10px}
.row.between{justify-content:space-between}
.row.wrap{flex-wrap:wrap}
.grow{flex:1}
.muted{color:var(--muted);font-size:13px}
.small{font-size:12px}
.center{text-align:center}
.mt{margin-top:12px}
.mb{margin-bottom:12px}
.hidden{display:none !important}

/* ---- Buttons ---- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:0;border-radius:12px;padding:13px 18px;font-weight:600;font-size:15px;
  background:var(--accent);color:#fff;transition:.15s;width:100%;
}
.btn:active{transform:scale(.99)}
.btn:hover{background:var(--accent-dark)}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.btn-secondary{background:#e2e8f0;color:var(--text)}
.btn-secondary:hover{background:#cbd5e1}
.btn-outline{background:#fff;border:1.5px solid var(--line);color:var(--text)}
.btn-outline:hover{background:#f8fafc}
.btn-danger{background:var(--danger)}
.btn-danger:hover{background:#dc2626}
.btn-sm{padding:9px 14px;font-size:14px;width:auto;border-radius:10px}
.btn-block{width:100%}

/* ---- Bottom nav ---- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:30;
  background:#fff;border-top:1px solid var(--line);
  display:flex;justify-content:space-around;
  min-height:calc(var(--tabbar-h) + env(safe-area-inset-bottom));
  padding:6px 4px calc(6px + env(safe-area-inset-bottom));
}
.tabbar button{
  background:none;border:0;padding:6px 4px;flex:1;
  display:flex;flex-direction:column;align-items:center;gap:3px;
  color:var(--muted);font-size:11px;font-weight:600;position:relative;
}
.tabbar button svg{width:22px;height:22px}
.tabbar button.active{color:var(--accent-dark)}
.tabbar .badge-dot{position:absolute;top:6px;right:calc(50% - 16px);width:8px;height:8px;background:var(--danger);border-radius:50%}

/* ---- Forms ---- */
label{display:block;font-size:13px;color:var(--sub);font-weight:600;margin:12px 0 6px}
input[type=text],input[type=number],input[type=email],input[type=password],input[type=url],textarea,select{
  width:100%;padding:12px 14px;border-radius:12px;border:1.5px solid var(--line);
  background:#fff;color:var(--text);outline:none;transition:.15s;
}
input:focus,textarea:focus,select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(34,197,94,.15)}
textarea{min-height:80px;resize:vertical;line-height:1.4;font-family:inherit}
.field-error{border-color:var(--danger) !important}
.err-msg{color:var(--danger);font-size:12px;margin-top:4px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}

/* ---- Segmented ---- */
.seg{display:flex;background:#eef2f7;border-radius:12px;padding:4px;gap:4px;overflow-x:auto}
.seg button{
  flex:1;background:transparent;border:0;padding:9px 8px;border-radius:9px;
  font-size:13px;font-weight:600;color:var(--sub);white-space:nowrap;
}
.seg button.on{background:#fff;color:var(--text);box-shadow:0 1px 2px rgba(0,0,0,.08)}

/* ---- Badges ---- */
.badge{display:inline-flex;align-items:center;gap:5px;padding:4px 9px;border-radius:99px;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;pointer-events:none;user-select:none}
.badge.green{background:#dcfce7;color:#166534}
.badge.amber{background:#fef3c7;color:#92400e}
.badge.red{background:#fee2e2;color:#991b1b}
.badge.blue{background:#dbeafe;color:#1e40af}
.badge.gray{background:#e5e7eb;color:#374151}

/* ---- Lists ---- */
.list{display:flex;flex-direction:column;gap:10px}
.item{background:#fff;border-radius:14px;padding:14px;box-shadow:var(--shadow);display:flex;gap:12px;align-items:center;cursor:pointer;transition:.15s}
.item:hover{transform:translateY(-1px)}
.item.static{cursor:default}
.item.static:hover{transform:none}
.item .avatar{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,#22c55e,#3b82f6);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0;font-size:14px}
.item .meta{flex:1;min-width:0}
.item .name{font-weight:700;font-size:15px}
.item .sub{font-size:12px;color:var(--muted);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ---- Video ---- */
.video-wrap{position:relative;width:100%;aspect-ratio:16/9;background:#000;border-radius:14px;overflow:hidden;margin-top:10px}
.video-wrap iframe,.video-wrap video{width:100%;height:100%;border:0;display:block}
.video-empty{aspect-ratio:16/9;border-radius:14px;background:#f1f5f9;display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:14px;border:1.5px dashed var(--line);margin-top:10px}

/* ---- Progress bar ---- */
.progress{height:8px;background:#e5e7eb;border-radius:99px;overflow:hidden}
.progress > i{display:block;height:100%;background:var(--accent);transition:width .3s}

/* ---- Stat grid ---- */
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.stats.cols-4{grid-template-columns:repeat(4,1fr)}
.stat{background:#f8fafc;border-radius:12px;padding:12px}
.stat .v{font-size:20px;font-weight:700;line-height:1.1}
.stat .l{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-top:4px}
.stat .d{font-size:11px;font-weight:700;margin-top:3px}
.stat .d.up{color:var(--danger)}
.stat .d.down{color:var(--accent-dark)}

/* ---- Attention ---- */
.attention{background:linear-gradient(135deg,#fff7ed,#ffedd5);border-left:4px solid var(--warn);padding:12px 14px;border-radius:12px;margin-bottom:10px;cursor:pointer;transition:.15s}
.attention:hover{transform:translateY(-1px)}
.attention.static{cursor:default}
.attention.static:hover{transform:none}
.attention .t{font-weight:700;font-size:14px}
.attention .s{font-size:12px;color:#92400e;margin-top:2px}

/* ---- Bubbles ---- */
.bubble{max-width:88%;padding:11px 14px;border-radius:14px;font-size:14px;line-height:1.4;margin:6px 0}
.bubble.trainer{background:#e0f2fe;border-bottom-left-radius:4px;margin-right:auto}
.bubble.client{background:#dcfce7;border-bottom-right-radius:4px;margin-left:auto}
.bubble .who{font-size:11px;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.05em;margin-bottom:3px}
.bubble .time{font-size:11px;color:var(--muted);margin-top:4px}

/* ---- Toast ---- */
.toast{
  position:fixed;left:50%;bottom:calc(90px + env(safe-area-inset-bottom));
  transform:translateX(-50%) translateY(20px);
  background:#0f172a;color:#fff;padding:12px 18px;border-radius:12px;
  font-size:14px;font-weight:500;opacity:0;pointer-events:none;transition:.2s;z-index:100;
  max-width:90vw;text-align:center;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---- Welcome ---- */
.welcome{min-height:100%;display:flex;flex-direction:column;justify-content:center;padding:24px;background:linear-gradient(180deg,#0f172a 0%,#1e293b 60%,#334155 100%);color:#fff}
.welcome .logo{display:flex;align-items:center;justify-content:center;gap:10px;font-size:28px;font-weight:800;margin-bottom:6px}
.welcome .logo .dot{width:14px;height:14px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 6px rgba(34,197,94,.2)}
.welcome .lead{text-align:center;opacity:.7;font-size:14px;line-height:1.5;margin-bottom:28px}
.welcome .panel{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:18px;max-width:420px;margin:0 auto;width:100%}
.welcome .panel h3{margin:0 0 4px;font-size:15px}
.welcome .panel p{margin:0 0 12px;opacity:.7;font-size:13px}
.welcome label{color:rgba(255,255,255,.7)}
.welcome input{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.15);color:#fff}
.welcome input::placeholder{color:rgba(255,255,255,.4)}
.welcome input:focus{border-color:var(--accent);background:rgba(255,255,255,.12)}
.welcome .btn{margin-top:14px}
.welcome .hint{font-size:11px;opacity:.5;text-align:center;margin-top:18px;line-height:1.6}
.welcome .hint code{background:rgba(255,255,255,.1);padding:1px 5px;border-radius:4px;font-size:11px}

/* ---- Modal ---- */
.modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.55);z-index:200;display:flex;align-items:flex-end;justify-content:center;padding:0;animation:fadeIn .15s}
.modal{background:#fff;border-radius:20px 20px 0 0;width:100%;max-width:520px;padding:20px;max-height:90vh;overflow-y:auto;animation:slideUp .2s}
.modal h3{margin:0 0 4px;font-size:17px}
.modal .modal-sub{margin:0 0 14px;color:var(--muted);font-size:13px}
.modal .modal-close{position:absolute;top:14px;right:14px;background:transparent;border:0;font-size:22px;line-height:1;padding:6px 10px;color:var(--muted)}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideUp{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}

/* ---- Accordion (programs) ---- */
.program{background:#fff;border-radius:14px;box-shadow:var(--shadow);margin-bottom:10px;overflow:hidden}
.program-header{padding:14px 16px;display:flex;align-items:center;gap:10px;cursor:pointer;user-select:none}
.program-header .arrow{transition:transform .2s;color:var(--muted);font-size:12px;width:16px;display:inline-block;text-align:center}
.program.open .program-header .arrow{transform:rotate(90deg)}
.program-header .title{flex:1;font-weight:700;font-size:15px}
.program-body{border-top:1px solid var(--line);padding:6px 16px 14px;display:none}
.program.open .program-body{display:block}
.lesson-row{display:flex;align-items:center;gap:10px;padding:12px 0;border-bottom:1px solid var(--line)}
.lesson-row:last-child{border-bottom:0}
.lesson-row .num{width:24px;height:24px;border-radius:50%;background:#eef2f7;color:var(--sub);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0}
.lesson-row .lmeta{flex:1;min-width:0}
.lesson-row .lname{font-weight:600;font-size:14px}
.lesson-row .lsub{font-size:12px;color:var(--muted);margin-top:2px}
.lesson-row .ledit{background:transparent;border:0;color:var(--muted);padding:6px;border-radius:8px;font-size:12px}
.lesson-row .ledit:hover{background:#f1f5f9}

/* ---- Copy field ---- */
.copy-field{display:flex;align-items:center;gap:8px;background:#f1f5f9;padding:10px 12px;border-radius:10px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12px;margin-top:6px;word-break:break-all}
.copy-field .val{flex:1;min-width:0}
.copy-field button{background:transparent;border:0;color:var(--accent-dark);font-weight:700;font-size:11px;padding:4px 8px;border-radius:6px}
.copy-field button:hover{background:rgba(34,197,94,.1)}

/* ---- Empty ---- */
.empty{padding:28px 16px;text-align:center;color:var(--muted);font-size:14px}
.pill{display:inline-block;padding:3px 8px;border-radius:6px;background:#f1f5f9;font-size:11px;font-weight:700;color:var(--sub)}
.hr{height:1px;background:var(--line);margin:14px 0}

/* ---- PWA banner (только на экране входа) ---- */
.pwa-banner{
  position:fixed;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));
  background:#fff;border-radius:14px;box-shadow:0 10px 32px rgba(15,23,42,.2), 0 2px 6px rgba(15,23,42,.1);
  padding:12px 40px 12px 12px;display:flex;align-items:center;gap:10px;z-index:150;
  animation:slideUp .3s;
}
.pwa-banner-content{display:flex;align-items:center;gap:10px;flex:1;min-width:0}
.pwa-banner-icon{flex-shrink:0}
.pwa-banner-icon svg{border-radius:8px;display:block}
.pwa-banner-text{flex:1;min-width:0}
.pwa-banner-title{font-weight:700;font-size:14px}
.pwa-banner-sub{font-size:12px;color:var(--muted);margin-top:1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pwa-banner-install{background:var(--accent);color:#fff;border:0;padding:9px 14px;border-radius:10px;font-weight:700;font-size:13px;flex-shrink:0}
.pwa-banner-install:hover{background:var(--accent-dark)}
.pwa-banner-close{position:absolute;top:6px;right:6px;background:transparent;border:0;color:var(--muted);font-size:14px;padding:6px 8px;border-radius:6px;line-height:1}
.pwa-banner-close:hover{background:#f1f5f9}

/* На экране входа отступ снизу, чтобы баннер не перекрывал подсказки */
body.has-pwa-banner .welcome{
  padding-bottom:120px;
}