:root{
  --bg:#eef5fb;
  --bg-2:#f8fbff;
  --card:rgba(255,255,255,.9);
  --card-strong:#ffffff;
  --text:#17324d;
  --muted:#60758a;
  --line:#d8e2ec;
  --line-strong:#c7d7e6;
  --primary:#1d7ddc;
  --primary-dark:#165f9e;
  --primary-soft:#e7f2fd;
  --secondary:#eef4fa;
  --danger:#d74f4f;
  --success:#1f9d55;
  --radius:20px;
  --radius-sm:14px;
  --shadow:0 14px 36px rgba(23,50,77,.10);
  --shadow-soft:0 8px 20px rgba(23,50,77,.07);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:Arial,Helvetica,sans-serif;color:var(--text);background:linear-gradient(180deg,var(--bg) 0%,var(--bg-2) 100%)}
body{min-height:100vh;position:relative}
body::before,body::after{content:"";position:fixed;z-index:0;pointer-events:none;border-radius:50%;filter:blur(10px);opacity:.75}
body::before{width:320px;height:320px;right:-110px;top:-70px;background:radial-gradient(circle at center, rgba(29,125,220,.16), rgba(29,125,220,0) 68%)}
body::after{width:280px;height:280px;left:-120px;bottom:-90px;background:radial-gradient(circle at center, rgba(127,189,236,.20), rgba(127,189,236,0) 70%)}
a{text-decoration:none;color:inherit}
button,input,select,textarea{font:inherit}
.app-shell{position:relative;z-index:1;max-width:840px;margin:0 auto;padding:18px}
.home-shell{display:flex;align-items:center;justify-content:center;min-height:100vh}
.home-card,.card,.employee-card,.sheet-list-item,.sheet-editor-card{
  background:var(--card);
  backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.72);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}
.home-card{
  width:min(100%,560px);
  padding:30px 24px;
  text-align:center;
  background:linear-gradient(180deg, rgba(255,255,255,.95), rgba(248,252,255,.92));
}
.home-card h1{font-size:34px;margin:0 0 8px 0;letter-spacing:-.02em}
.topbar,.detail-topbar{
  display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:16px;
  padding:14px 16px;
  border-radius:22px;
  background:rgba(255,255,255,.72);
  backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.78);
  box-shadow:var(--shadow-soft);
}
.topbar h1,.detail-topbar h2,.home-card h1{margin:0 0 6px 0}
.topbar p,.detail-topbar p,.home-card p,.employee-head p,.hint,.section-subtitle{margin:0;color:var(--muted);line-height:1.4}
.sticky-topbar{position:sticky;top:0;padding-top:10px;z-index:15;background:transparent}
.sticky-subbar{position:sticky;top:76px;z-index:14;align-items:flex-start}
.btn{
  border:none;border-radius:16px;padding:12px 16px;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;
  transition:transform .14s ease, box-shadow .14s ease, background .14s ease, opacity .14s ease;
  box-shadow:0 6px 16px rgba(23,50,77,.08);
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-xl{min-height:54px;padding:15px 18px;font-size:17px}
.btn-primary{background:linear-gradient(180deg,#2f8de7 0%, var(--primary) 100%);color:#fff}
.btn-primary:hover{background:linear-gradient(180deg,#2a84da 0%, var(--primary-dark) 100%)}
.btn-secondary{background:rgba(241,246,251,.95);color:var(--text)}
.btn-danger{background:linear-gradient(180deg,#ea6767 0%, var(--danger) 100%);color:#fff}
.home-actions{display:grid;gap:12px;margin-top:22px}
.grid-two{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.card{padding:18px;margin-bottom:16px}
.narrow-card{max-width:440px;margin:34px auto}
.stack-form{display:grid;gap:12px}
.stack-form label,.sheet-head-grid label,.exercise-label-item{display:grid;gap:6px;font-size:14px;font-weight:700}
input,select,textarea{
  width:100%;border:1px solid var(--line-strong);border-radius:15px;padding:12px 13px;background:rgba(255,255,255,.95);color:var(--text);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.75);
}
input:focus,select:focus,textarea:focus{outline:none;border-color:#8cbef0;box-shadow:0 0 0 4px rgba(29,125,220,.12)}
textarea{min-height:44px;resize:vertical}
.alert{padding:11px 13px;border-radius:14px;margin-bottom:12px}
.alert.error{background:#ffe9e9;color:#922}
.alert.success{background:#e8f7ee;color:#165}
.inline-add{display:grid;grid-template-columns:1fr auto;gap:8px;margin-bottom:12px}
.admin-list{display:grid;gap:8px}
.admin-item,.sheet-list-item{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  border:1px solid rgba(199,215,230,.9);border-radius:16px;padding:12px 13px;background:rgba(252,253,255,.94)
}
.admin-item span,.sheet-list-item span,.sheet-list-item strong{word-break:break-word}
.search-row{margin-bottom:12px}
.admin-search-list{max-height:420px;overflow:auto}
.sheet-list{display:grid;gap:10px;margin-bottom:16px}
.sheet-list-item{flex-direction:column;align-items:flex-start;box-shadow:var(--shadow-soft)}
.employee-overview{display:grid;gap:12px}
.employee-card{padding:16px 16px 14px;background:linear-gradient(180deg, rgba(255,255,255,.94), rgba(248,252,255,.9))}
.employee-head{display:flex;align-items:center;justify-content:space-between;gap:14px}
.employee-head h2{margin:0 0 4px 0;font-size:23px;letter-spacing:-.02em}
.hidden{display:none!important}
.sheet-editor-card{padding:14px;background:linear-gradient(180deg, rgba(255,255,255,.95), rgba(248,252,255,.93))}
.sheet-head-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-bottom:12px}
.exercise-label-grid{display:grid;grid-template-columns:repeat(5,minmax(72px,1fr));gap:8px;margin:8px 0 12px}
.exercise-label-item span{font-size:12px;color:var(--muted)}
.exercise-name-input{padding:8px 10px;min-width:72px}
.compact-sheet-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:6px}
.compact-sheet{width:100%;border-collapse:separate;border-spacing:0;table-layout:auto;min-width:0}
.compact-sheet th,.compact-sheet td{border:1px solid var(--line);padding:0;background:rgba(255,255,255,.96);text-align:center;vertical-align:middle}
.compact-sheet th.name-col,.compact-sheet td.name-col{min-width:120px;width:1%}
.compact-sheet th.exercise-col,.compact-sheet td.exercise-col{width:52px;min-width:52px}
.compact-sheet th.pass-col,.compact-sheet td.pass-col{width:58px;min-width:58px}
.compact-sheet th.notes-col,.compact-sheet td.notes-col{width:56px;min-width:56px}
.compact-sheet thead th{background:linear-gradient(180deg,#f7fbff 0%, #edf4fb 100%);font-size:12px;height:126px;position:relative;overflow:visible}
.compact-sheet input.name-input{border:none;border-radius:0;padding:10px;height:48px;min-width:120px;max-width:none;background:transparent;box-shadow:none}
.rot-wrap{height:112px;display:flex;align-items:center;justify-content:center;overflow:visible;padding:6px 2px}
.rot{display:inline-block;writing-mode:vertical-rl;text-orientation:mixed;transform:rotate(180deg);white-space:normal;font-size:11px;font-weight:700;line-height:1.05;max-height:104px;overflow:visible;word-break:break-word;text-align:center}
.score-btn,.pass-btn{width:100%;height:48px;border:none;background:transparent;font-weight:700;font-size:20px;cursor:pointer}
.score-btn:hover,.pass-btn:hover,.note-btn:hover{background:#f1f7fd}
.note-btn{width:100%;height:48px;border:none;background:transparent;font-weight:700;font-size:20px;cursor:pointer;color:var(--muted)}
.note-has-text{color:var(--primary)}
.note-modal{position:fixed;inset:0;background:rgba(23,50,77,.42);display:flex;align-items:flex-end;justify-content:center;padding:16px;z-index:80}
.note-modal-card{width:min(100%,460px);background:#fff;border-radius:18px 18px 14px 14px;padding:14px;border:1px solid var(--line);box-shadow:var(--shadow)}
.note-modal-head{margin-bottom:10px}
.note-modal textarea{min-height:130px}
.note-modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:10px;flex-wrap:wrap}
.score-empty,.pass-empty{color:#9aaabc}
.pass-success{color:var(--success)}
.pass-fail{color:var(--danger)}
.sheet-actions{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.sheet-footer-note{font-size:12px;color:var(--muted);margin-top:8px;line-height:1.4}
.save-indicator{
  font-size:12px;color:var(--muted);margin-left:auto;align-self:center;
  padding:8px 10px;background:rgba(244,248,252,.9);border:1px solid rgba(216,226,236,.8);border-radius:12px
}
.small-btn{min-height:40px;padding:10px 12px;border-radius:12px}
.header-chip{
  display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;
  background:rgba(231,242,253,.9);color:var(--primary-dark);font-weight:700;font-size:13px;margin-bottom:12px
}
.section-title{margin:0 0 6px 0;font-size:22px;letter-spacing:-.02em}
.card h2{margin:0 0 12px 0;font-size:22px;letter-spacing:-.02em}
.toolbar-links{display:flex;gap:8px;flex-wrap:wrap}
.nav-pill{display:inline-flex;align-items:center;justify-content:center;padding:11px 14px;border-radius:16px;background:rgba(241,246,251,.95);font-weight:700;box-shadow:var(--shadow-soft)}
.nav-pill.primary{background:linear-gradient(180deg,#2f8de7 0%, var(--primary) 100%);color:#fff}
.hero-subtle{margin-top:8px;color:var(--muted)}
@media (max-width: 720px){
  .app-shell{padding:12px}
  .grid-two{grid-template-columns:1fr}
  .topbar,.detail-topbar,.employee-head{align-items:flex-start;flex-direction:column}
  .sticky-subbar{top:64px}
  .sheet-head-grid{grid-template-columns:1fr 1fr}
  .exercise-label-grid{grid-template-columns:repeat(3,minmax(72px,1fr))}
  .compact-sheet th.name-col,.compact-sheet td.name-col{min-width:110px}
  .compact-sheet th.exercise-col,.compact-sheet td.exercise-col{width:50px;min-width:50px}
  .compact-sheet th.pass-col,.compact-sheet td.pass-col{width:54px;min-width:54px}
  .compact-sheet th.notes-col,.compact-sheet td.notes-col{width:52px;min-width:52px}
  .home-card{padding:24px 18px}
  .topbar,.detail-topbar{padding:13px 14px;border-radius:18px}
  .btn{width:auto}
}
@media print{
  body{background:#fff}
  body::before,body::after{display:none}
  .topbar,.detail-topbar,.sheet-actions,#back-to-overview,#new-sheet-btn,.employee-overview,.exercise-label-grid{display:none!important}
  .app-shell{max-width:none;padding:0}
  .sheet-editor-card,.card,.sheet-list-item{box-shadow:none;border:none;background:#fff}
  .compact-sheet-wrap{overflow:visible}
  .compact-sheet{min-width:0;width:100%}
}
.header-wide{grid-column:1 / -1}
.sheet-head-grid input[type="date"],
.sheet-head-grid input[type="time"]{appearance:auto;-webkit-appearance:auto;min-height:46px}
@media (max-width: 720px){
  .header-wide{grid-column:1 / -1}
}