:root{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;color:#18243a;background:#f2f5f9;line-height:1.5}*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}.top{background:#102746;color:white;min-height:76px;padding:14px max(18px,calc((100vw - 1160px)/2));display:flex;justify-content:space-between;align-items:center}.brand{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:#9bd9bd}.top h1{font-size:22px;margin:1px 0}.userbox{display:flex;align-items:center;gap:14px}.userbox span{font-weight:700}.userbox small{display:block;font-size:11px;font-weight:400;color:#c5d2e3}.wrap{max-width:1160px;margin:22px auto;padding:0 16px 40px}.nav{display:flex;gap:8px;overflow:auto;padding:2px 0 14px}.nav button{white-space:nowrap;background:white;color:#40506a;border:1px solid #d8e0eb}.nav button.active{background:#102746;color:white;border-color:#102746}.card,.hero,.stats>div,.date-card{background:white;border:1px solid #dbe3ed;border-radius:16px;box-shadow:0 7px 24px rgba(20,45,75,.06)}.card{padding:22px;margin-bottom:16px}.hero{padding:24px;display:flex;justify-content:space-between;gap:20px;align-items:center;margin-bottom:16px;background:linear-gradient(135deg,#fff,#f3fbf7)}.hero h2{margin:5px 0}.shiftbox{min-width:220px;padding:18px;border-radius:13px;background:#102746;color:#fff}.shiftbox span,.shiftbox small{display:block;color:#c8d5e4}.shiftbox strong{font-size:24px;display:block;margin:4px 0}.eyebrow{margin:0;color:#17805c;font-weight:800;font-size:12px;letter-spacing:.08em}.bigtime{font-size:44px;font-weight:900;letter-spacing:.02em}.page-title{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:6px 0 18px}.page-title h2{margin:3px 0;font-size:28px}.date-card{padding:14px 20px;text-align:center;min-width:180px}.date-card span{display:block;color:#6a788c;font-size:12px}.date-card strong{font-size:20px;white-space:nowrap}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px}.stats>div{padding:18px}.stats span{display:block;color:#68778c;font-size:13px}.stats strong{font-size:32px}.stats small{margin-left:4px;color:#68778c}.time-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:12px 0 18px}.time-grid>div{padding:16px;background:#f5f8fb;border-radius:12px}.time-grid span{display:block;color:#66758a;font-size:13px}.time-grid strong{font-size:18px}h2{margin-top:0}label{display:block;font-size:13px;font-weight:800;margin:12px 0 6px}input,select,textarea{width:100%;padding:12px 13px;border:1px solid #bdcad9;border-radius:10px;background:#fff;color:#18243a}textarea{resize:vertical}button{border:0;border-radius:10px;padding:11px 17px;cursor:pointer;background:#16815c;color:#fff;font-weight:800}button.secondary{background:#405570}button.danger{background:#b13e47}button.ghost{background:transparent;border:1px solid rgba(255,255,255,.35)}button.small{padding:7px 11px;font-size:12px}button:disabled{opacity:.42;cursor:not-allowed}.actions{display:flex;gap:8px;flex-wrap:wrap}.primary-actions button{min-width:150px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.form-grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.button-cell{align-self:end}.success,.error{padding:12px 14px;border-radius:10px;margin-bottom:14px}.success{background:#e7f6ee;color:#0d6844}.error{background:#fee9ea;color:#9c2730}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;font-size:14px;min-width:720px}th,td{text-align:left;padding:12px 9px;border-bottom:1px solid #e5eaf0;vertical-align:middle}th{color:#617087;font-size:12px;background:#f7f9fc}.pill{display:inline-block;border-radius:999px;padding:4px 9px;font-size:12px;font-weight:800}.pill.approved{background:#e3f5ec;color:#0d714c}.pill.pending{background:#fff1d8;color:#946000}.pill.rejected{background:#fde7e9;color:#a82d38}.pill.neutral{background:#edf1f5;color:#5b6879}.login-wrap{min-height:100vh;display:grid;place-items:center;padding:20px;background:linear-gradient(160deg,#102746 0 42%,#f2f5f9 42%)}.login-card{width:min(440px,100%);background:#fff;padding:32px;border-radius:20px;box-shadow:0 18px 60px rgba(3,25,53,.25)}.logo{width:48px;height:48px;border-radius:13px;background:#16815c;color:white;display:grid;place-items:center;font-weight:900;margin-bottom:18px}.login-card h1{font-size:29px;margin:3px 0}.login-card button{width:100%;margin-top:18px;padding:13px}.muted{color:#6a788b}.demo-accounts{border-top:1px solid #e3e8ef;margin-top:22px;padding-top:12px;font-size:13px;color:#5b6879}.export-card{max-width:620px}.export-card button{display:block;margin-top:16px}.ghost:hover,.nav button:hover{filter:brightness(.96)}
@media(max-width:800px){.stats{grid-template-columns:1fr 1fr}.form-grid.four{grid-template-columns:1fr 1fr}.page-title{align-items:flex-start}.top{padding:12px 16px}.userbox span{display:none}}
@media(max-width:560px){.wrap{margin-top:12px;padding:0 12px 28px}.card{padding:16px;border-radius:14px}.hero{padding:18px;display:block}.shiftbox{margin-top:16px;min-width:0}.bigtime{font-size:38px}.stats{grid-template-columns:1fr 1fr;gap:8px}.stats>div{padding:14px}.stats strong{font-size:27px}.page-title{display:block}.date-card{margin-top:12px;width:100%;min-width:0}.date-card strong{font-size:18px}.form-grid,.form-grid.four,.time-grid{grid-template-columns:1fr}.top h1{font-size:19px}.primary-actions{display:grid;grid-template-columns:1fr 1fr}.primary-actions button{min-width:0}.login-card{padding:24px}}
.calendar-heading{display:flex;justify-content:space-between;gap:16px;align-items:center}.calendar-heading h2{margin:3px 0}.month-picker{width:auto;min-width:155px;padding:7px 10px}.calendar-weekdays,.calendar-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:7px}.calendar-weekdays{margin-top:18px}.calendar-weekdays span{text-align:center;font-size:12px;font-weight:800;color:#69778a;padding:5px}.calendar-grid{margin-top:5px}.calendar-day{min-height:78px;padding:9px;border:1px solid #dce4ed;background:#fff;color:#18243a;display:flex;flex-direction:column;align-items:flex-start;justify-content:space-between}.calendar-day:hover{border-color:#16815c;background:#f1faf6}.calendar-day.selected{background:#16815c;color:#fff;border-color:#16815c;box-shadow:0 5px 14px rgba(22,129,92,.22)}.calendar-day.has-shift:not(.selected){border:2px dashed #16815c;background:#f5fbf8}.calendar-day.outside{visibility:hidden}.calendar-day span{font-size:17px}.calendar-day small{font-size:10px}.calendar-day.saturday:not(.selected){color:#2368a7}.calendar-day.sunday:not(.selected){color:#b13e47}.selection-bar{display:flex;justify-content:space-between;align-items:center;margin:16px 0;padding:12px 14px;background:#f3f7fa;border-radius:10px}.ghost-dark{background:#fff;color:#405570;border:1px solid #bcc8d7}.save-monthly{margin-top:16px}.save-monthly:disabled{opacity:.45}
@media(max-width:560px){.calendar-heading{display:block}.calendar-heading .actions{margin-top:12px}.calendar-day{min-height:58px;padding:6px}.calendar-day span{font-size:15px}.calendar-day small{font-size:8px}.calendar-weekdays,.calendar-grid{gap:4px}.month-picker{min-width:125px;flex:1}.selection-bar{margin-top:12px}}

.bulk-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin:14px 0;padding:12px 14px;background:#f3f7fa;border-radius:10px}.bulk-edit-form{margin-bottom:14px;padding:14px;background:#f8fafc;border:1px solid #e0e7ef;border-radius:12px}.row-check{width:18px;height:18px}.modal-backdrop{position:fixed;inset:0;background:rgba(10,25,45,.55);display:grid;place-items:center;padding:18px;z-index:1000}.modal{width:min(520px,100%);max-height:92vh;overflow:auto;background:#fff;border-radius:18px;padding:22px;box-shadow:0 24px 80px rgba(0,0,0,.25)}.modal-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.modal-head h2{margin:0}.modal-actions{margin-top:18px}.table-wrap td:first-child,.table-wrap th:first-child{text-align:center}@media(max-width:560px){.bulk-toolbar{align-items:flex-start;flex-direction:column}.bulk-toolbar .actions{width:100%}.bulk-toolbar .actions button{flex:1}.modal{padding:17px}.modal-actions{display:grid;grid-template-columns:1fr}.bulk-edit-form .button-cell{display:grid;grid-template-columns:1fr 1fr}}

.calendar-day.readonly{cursor:default;min-height:92px}.calendar-day.readonly small{display:block;margin-top:5px;line-height:1.25}.shift-matrix{max-height:70vh}.shift-matrix table{min-width:max-content}.shift-matrix th,.shift-matrix td{min-width:92px;vertical-align:top}.shift-matrix td small{display:block;margin-top:4px;white-space:nowrap}.shift-matrix .sticky-col{position:sticky;left:0;z-index:2;background:#fff;min-width:140px}.shift-matrix .matrix-shift{background:#eef7f1}
select{width:100%;padding:12px;border:1px solid #cbd5e1;border-radius:10px;background:#fff;font:inherit}
.check-line{display:flex;align-items:center;gap:10px;margin:10px 0;font-weight:600}.check-line input{width:auto;margin:0}.settings-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 20px;margin:14px 0 22px}@media(max-width:700px){.settings-grid{grid-template-columns:1fr}}

/* Version 1.0 mobile responsive hardening */
html,body,#app{width:100%;max-width:100%;overflow-x:hidden}
img,svg,video,canvas{max-width:100%;height:auto}
main,section,form,.card,.hero,.form-grid,.form-grid>div,.actions{min-width:0}
.form-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}
input,select,textarea,button{max-width:100%;min-width:0}
input[type="date"],input[type="time"],input[type="month"]{-webkit-appearance:none;appearance:none;display:block;width:100%;min-width:0;box-sizing:border-box}
.save-monthly{width:100%;min-height:48px;white-space:normal;line-height:1.35;padding:12px 14px}

@media(max-width:700px){
  .form-grid.three{grid-template-columns:1fr}
  .wrap{width:100%;max-width:100%;padding-left:12px;padding-right:12px}
  .card,.hero{width:100%;max-width:100%}
  form{width:100%;max-width:100%}
  label{overflow-wrap:anywhere}
  input,select,textarea{font-size:16px}
  input[type="date"],input[type="time"],input[type="month"]{height:48px;padding:10px 12px}
  .actions{width:100%}
  .actions>button{max-width:100%}
  .bulk-edit-form .button-cell{width:100%}
}

@media(max-width:560px){
  .top{gap:10px}
  .top>div:first-child{min-width:0}
  .top h1{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .userbox{flex:0 0 auto}
  .userbox button{padding:9px 11px;font-size:12px}
  .nav{margin-left:-12px;margin-right:-12px;padding-left:12px;padding-right:12px;scrollbar-width:none}
  .nav::-webkit-scrollbar{display:none}
  .calendar-heading .actions{display:grid;grid-template-columns:auto minmax(0,1fr) auto;width:100%}
  .calendar-heading .actions button,.calendar-heading .actions input{width:100%;min-width:0}
  .month-picker{min-width:0}
  .selection-bar{gap:10px}
  .selection-bar strong{min-width:0;overflow-wrap:anywhere}
  .selection-bar button{flex:0 0 auto}
  .primary-actions{grid-template-columns:1fr}
  .primary-actions button{width:100%;min-height:48px}
  .bulk-edit-form .button-cell{grid-template-columns:1fr}
  .modal{width:100%;max-width:100%}
}

/* Version 1.0 mobile navigation overflow fix */
@media(max-width:700px){
  .nav{
    display:grid;
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:8px;
    width:100%;
    margin:0;
    padding:2px 0 14px;
    overflow:visible;
  }
  .nav button{
    width:100%;
    min-width:0;
    min-height:48px;
    padding:10px 8px;
    white-space:normal;
    overflow-wrap:anywhere;
    line-height:1.25;
    text-align:center;
  }
}

@media(min-width:561px) and (max-width:900px){
  .nav{grid-template-columns:repeat(4,minmax(0,1fr))}
}

/* Version 1.0 smartphone landscape navigation optimization */
@media (orientation: landscape) and (max-height: 600px) and (max-width: 1000px) {
  .top{
    min-height:64px;
    padding-top:9px;
    padding-bottom:9px;
  }
  .top h1{font-size:18px}
  .brand{font-size:10px}
  .userbox button{padding:9px 12px;font-size:13px}
  .wrap{margin-top:12px;padding-left:12px;padding-right:12px}
  .nav{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:8px;
    width:100%;
    margin:0;
    padding:2px 0 14px;
    overflow:visible;
  }
  .nav button{
    width:100%;
    min-width:0;
    min-height:46px;
    padding:9px 5px;
    font-size:13px;
    line-height:1.2;
    white-space:normal;
    overflow-wrap:anywhere;
    word-break:keep-all;
    text-align:center;
  }
  .card{padding:16px}
  .page-title h2{font-size:24px}
  .table-wrap{
    max-width:100%;
    overflow-x:auto;
    -webkit-overflow-scrolling:touch;
  }
}

.version-footer,.app-footer{text-align:center;color:#6a788b;font-size:12px;line-height:1.55}.version-footer{margin-top:24px;padding-top:16px;border-top:1px solid #e3e8ef}.app-footer{margin-top:24px;padding:18px 0 4px}
.settings-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-bottom:20px}.settings-grid>div{min-width:0}.check-list{display:flex;flex-wrap:wrap;gap:12px 24px;margin:10px 0 22px}.check-list label,.check-row{display:flex;align-items:center;gap:8px;font-weight:600}.check-list input,.check-row input{width:auto}.success{background:#e9f8ef;border:1px solid #98d7ad;color:#176b38;padding:12px;border-radius:10px;margin:12px 0}@media(max-width:720px){.settings-grid{grid-template-columns:1fr}}


/* =========================================================
   Version 1.3 - application shell / responsive navigation
   ========================================================= */
:root{
  --pu-navy:#102746;
  --pu-navy-2:#18385f;
  --pu-green:#16815c;
  --pu-bg:#f2f5f9;
  --pu-line:#dbe3ed;
  --pu-sidebar:252px;
  --pu-header:76px;
}
body{min-height:100vh;background:var(--pu-bg)}
.top{
  position:sticky;top:0;z-index:40;
  min-height:var(--pu-header);
  padding:12px clamp(16px,3vw,34px);
  box-shadow:0 4px 18px rgba(9,29,54,.16)
}
.top-brand{display:flex;align-items:center;gap:12px;min-width:0}
.menu-toggle{display:none;width:44px;height:44px;padding:10px;background:transparent;border:1px solid rgba(255,255,255,.3);flex:0 0 auto}
.menu-toggle span{display:block;height:2px;background:#fff;margin:4px 0;border-radius:99px}
.wrap{
  width:min(1440px,100%);max-width:none;
  margin:0 auto;padding:22px clamp(16px,2.5vw,32px) 42px;
  display:grid;grid-template-columns:var(--pu-sidebar) minmax(0,1fr);
  column-gap:22px;align-items:start
}
.wrap>.nav{grid-column:1;grid-row:1 / span 999;position:sticky;top:calc(var(--pu-header) + 20px)}
.wrap>:not(.nav){grid-column:2;min-width:0}
.nav{
  display:block;overflow:visible;padding:0;
  background:var(--pu-navy);border-radius:18px;
  box-shadow:0 10px 32px rgba(16,39,70,.16);
  color:#fff
}
.nav-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:19px 18px 15px;border-bottom:1px solid rgba(255,255,255,.12)}
.nav-head span{display:block;font-size:10px;letter-spacing:.16em;color:#9bd9bd;font-weight:800}
.nav-head strong{display:block;font-size:15px;margin-top:2px}
.nav-close{display:none;background:transparent;border:0;color:#fff;font-size:30px;line-height:1;padding:2px 6px}
.nav-list{padding:10px}
.nav button,.nav-list button{
  width:100%;min-height:46px;margin:2px 0;padding:10px 12px;
  display:flex;align-items:center;gap:11px;
  text-align:left;white-space:normal;overflow-wrap:anywhere;
  color:#dce7f4;background:transparent;border:1px solid transparent;border-radius:11px;
  font-size:14px;line-height:1.25
}
.nav button:hover,.nav-list button:hover{background:rgba(255,255,255,.08);filter:none}
.nav button.active,.nav-list button.active{background:#fff;color:var(--pu-navy);border-color:#fff;box-shadow:0 5px 15px rgba(0,0,0,.13)}
.nav-icon{width:25px;height:25px;display:grid;place-items:center;flex:0 0 25px;border-radius:7px;background:rgba(255,255,255,.1);font-size:16px;font-weight:900}
.nav button.active .nav-icon{background:#e8f5ef;color:var(--pu-green)}
.nav-version{padding:12px 18px 16px;color:#aebed1;font-size:11px;border-top:1px solid rgba(255,255,255,.1)}
.nav-backdrop{display:none}
.wrap>.success,.wrap>.error{margin-bottom:14px}
.app-footer{width:100%;margin-top:12px}
.card,.hero,.stats>div,.date-card{box-shadow:0 7px 24px rgba(20,45,75,.055)}
.table-wrap{-webkit-overflow-scrolling:touch;max-width:100%}

@media(max-width:980px){
  :root{--pu-header:68px}
  .menu-toggle{display:block}
  .top{min-height:var(--pu-header);padding:10px 14px}
  .top h1{font-size:20px}
  .wrap{display:block;width:100%;padding:16px 14px 34px}
  .wrap>:not(.nav){min-width:0}
  .wrap>.nav{
    position:fixed;z-index:80;top:0;left:0;bottom:0;
    width:min(318px,86vw);height:100dvh;border-radius:0;
    overflow-y:auto;transform:translateX(-105%);transition:transform .22s ease;
    box-shadow:12px 0 38px rgba(4,21,42,.3)
  }
  body.menu-open{overflow:hidden}
  body.menu-open .wrap>.nav{transform:translateX(0)}
  .nav-head{position:sticky;top:0;z-index:2;background:var(--pu-navy);padding-top:max(18px,env(safe-area-inset-top))}
  .nav-close{display:block}
  .nav-backdrop{position:fixed;z-index:70;inset:0;background:rgba(5,20,39,.55);opacity:0;pointer-events:none;transition:opacity .2s ease}
  body.menu-open .nav-backdrop{display:block;opacity:1;pointer-events:auto}
  .nav-list{padding-bottom:max(16px,env(safe-area-inset-bottom))}
}

@media(max-width:560px){
  .top{gap:8px}
  .top-brand{gap:9px}
  .top .brand{font-size:9px}
  .top h1{font-size:17px}
  .userbox{gap:7px}
  .userbox span{display:none}
  .userbox button{font-size:12px;padding:9px 10px}
  .wrap{margin:0;padding:12px 10px 28px}
  .card{padding:15px;border-radius:13px}
  .hero{padding:16px}
  .stats{gap:8px}
  .stats>div{padding:13px}
  .table-wrap table{min-width:680px}
}

@media(prefers-reduced-motion:reduce){
  .wrap>.nav,.nav-backdrop{transition:none}
}