:root {
  --bg-primary: #0f1117;
  --bg-secondary: #1a1d27;
  --bg-tertiary: #242736;
  --bg-card: #1e2130;
  --accent-primary: #6366f1;
  --accent-secondary: #8b5cf6;
  --accent-success: #10b981;
  --accent-warning: #f59e0b;
  --accent-danger: #ef4444;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: #2d3144;
  --border-accent: #3d4566;
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --cell-w: 80px;
  --name-w: 150px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{height:100%}
body{font-family:'Noto Sans JP',sans-serif;background:var(--bg-primary);color:var(--text-primary);height:100vh;overflow:hidden;display:flex;flex-direction:column}

/* HEADER */
.app-header{
  background:var(--bg-secondary);border-bottom:1px solid var(--border-color);
  padding:10px 16px;display:flex;align-items:center;gap:12px;
  position:sticky;top:0;z-index:100;box-shadow:var(--shadow-md);flex-shrink:0
}
.app-logo{font-size:1.2rem;font-weight:700;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;white-space:nowrap}
.month-nav{display:flex;align-items:center;gap:8px;margin:0 auto}
.month-display{font-size:1.05rem;font-weight:600;min-width:130px;text-align:center}
.header-actions{display:flex;gap:8px;flex-wrap:wrap}

.btn{padding:6px 14px;border-radius:var(--radius-md);border:none;cursor:pointer;font-family:'Noto Sans JP',sans-serif;font-size:0.82rem;font-weight:500;transition:all 0.2s;display:inline-flex;align-items:center;gap:5px;white-space:nowrap}
.btn-primary{background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));color:#fff}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(99,102,241,0.4)}
.btn-secondary{background:var(--bg-tertiary);color:var(--text-secondary);border:1px solid var(--border-color)}
.btn-secondary:hover{background:var(--border-accent);color:var(--text-primary)}
.btn-icon{width:30px;height:30px;padding:0;justify-content:center;background:var(--bg-tertiary);border:1px solid var(--border-color);color:var(--text-secondary);border-radius:var(--radius-sm);font-size:1rem}
.btn-icon:hover{background:var(--border-accent);color:var(--text-primary)}
.btn-danger{background:rgba(239,68,68,0.2);color:#fca5a5;border:1px solid rgba(239,68,68,0.3)}
.btn-danger:hover{background:rgba(239,68,68,0.4)}
.btn-sm{padding:3px 8px;font-size:0.75rem}

/* MAIN */
.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden;padding:12px}
.grid-wrapper{flex:1;overflow:hidden;border-radius:var(--radius-lg);border:1px solid var(--border-color);background:var(--bg-secondary);display:flex;flex-direction:column}
.grid-container{overflow:auto;flex:1}

/* REQ CONTROLS */
.req-controls{padding:10px 16px;background:var(--bg-tertiary);display:flex;gap:12px;align-items:center;border:1px solid var(--border-color);border-bottom:none;border-radius:var(--radius-lg) var(--radius-lg) 0 0;flex-wrap:wrap;flex-shrink:0}
.req-controls + .grid-wrapper{border-top-left-radius:0;border-top-right-radius:0}


/* TABLE */
.shift-table{border-collapse:collapse;min-width:100%;table-layout:fixed}
.shift-table th,.shift-table td{border:1px solid var(--border-color);overflow:hidden}

/* Sticky name column */
.col-name{
  position:sticky;left:0;z-index:25;background:var(--bg-tertiary);
  width:var(--name-w);min-width:var(--name-w);max-width:var(--name-w);
  padding:5px 8px;font-size:0.82rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis
}
thead .col-name{z-index:35}

/* Date header cells */
.cell-date{
  width:var(--cell-w);min-width:var(--cell-w);max-width:var(--cell-w);
  text-align:center;padding:4px 2px;font-size:0.72rem;
  background:var(--bg-tertiary);white-space:nowrap;user-select:none;vertical-align:middle
}
.cell-date .day-num{font-weight:700;font-size:0.88rem;display:block}
.cell-date .day-name{font-size:0.65rem;opacity:0.7;display:block}
.cell-date.sat .day-num,.cell-date.sat .day-name{color:#60a5fa}
.cell-date.sun .day-num,.cell-date.sun .day-name{color:#f87171}
.cell-date.holi .day-num,.cell-date.holi .day-name{color:#f87171}

/* Sticky header rows */
.hrow-date{position:sticky;top:0;z-index:20}
.hrow-req{position:sticky;top:34px;z-index:20}

/* Requirement header cell */
.req-hdr-cell{
  width:var(--cell-w);min-width:var(--cell-w);max-width:var(--cell-w);
  padding:3px 2px;background:var(--bg-card);vertical-align:top;overflow:hidden
}
.req-section{margin-bottom:4px;border:1px solid var(--border-color);border-radius:3px;padding:2px;background:var(--bg-secondary)}
.req-section-title{
  font-size:0.55rem;font-weight:700;text-align:center;
  padding:2px;border-radius:2px;margin-bottom:2px;display:block
}
.req-section-title.day-title{background:rgba(59,130,246,0.15);color:#93c5fd}
.req-section-title.night-title{background:rgba(139,92,246,0.15);color:#c4b5fd}
.req-row{display:flex;gap:2px;align-items:center;justify-content:space-between;margin-bottom:2px}
.req-lbl{
  font-size:0.55rem;color:var(--text-muted);white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis;flex:1;text-align:right
}
.req-input{
  width:32px;padding:2px;background:var(--bg-primary);border:1px solid var(--border-color);
  border-radius:2px;color:var(--text-primary);font-size:0.65rem;text-align:center;
  font-family:inherit;flex-shrink:0;transition:all 0.2s
}
.req-input:focus{outline:none;border-color:var(--accent-primary)}
.req-input:disabled{background:rgba(255,255,255,0.05);color:var(--text-muted);cursor:not-allowed;border-color:transparent}
.req-input.shortage{
  background:rgba(239,68,68,0.2);
  border-color:var(--accent-danger);
  color:#fca5a5;
  font-weight:700;
}

/* Shift cells */
.shift-cell{
  width:var(--cell-w);min-width:var(--cell-w);max-width:var(--cell-w);height:34px;
  text-align:center;padding:2px;cursor:pointer;transition:filter 0.15s;
  font-size:0.82rem;font-weight:700;vertical-align:middle
}
.shift-cell:hover{filter:brightness(1.3)}
.shift-cell.s-日{background:#0a0d14;color:#f1f5f9;border:1px solid #475569}
.shift-cell.s-夜{background:rgba(16,185,129,0.28);color:#6ee7b7}
.shift-cell.s-勤{background:rgba(59,130,246,0.28);color:#93c5fd}
.shift-cell.s-OFF{background:rgba(239,68,68,0.20);color:#fca5a5}
.shift-cell.s-休{background:rgba(239,68,68,0.32);color:#fda4af}
.shift-cell.s-部休{background:rgba(239,68,68,0.18);color:#fca5a5;background-image:repeating-linear-gradient(45deg,transparent 0,transparent 4px,rgba(239,68,68,0.18) 4px,rgba(239,68,68,0.18) 8px)}
.shift-cell.s-その他{background:rgba(236,72,153,0.2);color:#f9a8d4}
.shift-cell.manual{
  outline:2px dashed #fcd34d;
  outline-offset:-2px;
  position:relative;
  z-index:5;
  box-shadow:inset 0 0 6px rgba(0,0,0,0.5);
}

.emp-stats{
  position:sticky;right:0;z-index:10;background:var(--bg-card);
  padding:2px 6px;font-size:0.7rem;color:var(--text-muted);
  white-space:normal;border-left:2px solid var(--border-accent);vertical-align:middle;
  min-width:140px;max-width:160px;line-height:1.4
}

/* Summary bar */
.summary-bar{padding:8px 12px;background:var(--bg-tertiary);border-top:1px solid var(--border-color);display:flex;gap:16px;flex-wrap:wrap;font-size:0.78rem;flex-shrink:0}
.sum-item{display:flex;align-items:center;gap:5px}
.sum-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}

/* CELL POPUP */
.cell-popup{
  position:fixed;background:var(--bg-secondary);border:1px solid var(--border-accent);
  border-radius:var(--radius-md);padding:8px;z-index:400;
  box-shadow:var(--shadow-lg);display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:6px;
  min-width:240px;animation:popIn 0.12s ease
}
@keyframes popIn{from{transform:scale(0.9);opacity:0}to{transform:scale(1);opacity:1}}
.popup-btn{padding:8px 4px;border-radius:var(--radius-sm);border:none;cursor:pointer;font-family:inherit;font-size:0.78rem;font-weight:700;transition:transform 0.12s}
.popup-btn:hover{transform:scale(1.06)}
.popup-btn.day{background:#0a0d14;color:#f1f5f9;border:1px solid #475569}
.popup-btn.night{background:rgba(16,185,129,0.35);color:#6ee7b7}
.popup-btn.after{background:rgba(59,130,246,0.35);color:#93c5fd}
.popup-btn.off{background:rgba(239,68,68,0.30);color:#fca5a5}
.popup-btn.holi{background:rgba(239,68,68,0.45);color:#fda4af}
.popup-btn.prest{background:rgba(239,68,68,0.28);color:#fca5a5;background-image:repeating-linear-gradient(45deg,transparent 0,transparent 4px,rgba(0,0,0,0.18) 4px,rgba(0,0,0,0.18) 8px)}
.popup-btn.other{background:rgba(236,72,153,0.3);color:#f9a8d4}
.popup-btn.clear{background:rgba(100,116,139,0.3);color:#94a3b8;grid-column:span 2}

/* MODALS */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.72);backdrop-filter:blur(4px);z-index:200;display:flex;align-items:center;justify-content:center;animation:fadeIn 0.15s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.modal{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:24px;width:90%;max-width:580px;max-height:85vh;overflow-y:auto;box-shadow:var(--shadow-lg);animation:slideUp 0.15s ease}
@keyframes slideUp{from{transform:translateY(16px);opacity:0}to{transform:translateY(0);opacity:1}}
.modal-title{font-size:1.05rem;font-weight:700;margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid var(--border-color)}
.modal-footer{display:flex;gap:8px;justify-content:flex-end;margin-top:20px;padding-top:16px;border-top:1px solid var(--border-color)}

.form-group{margin-bottom:16px}
.form-label{font-size:0.83rem;color:var(--text-secondary);margin-bottom:6px;display:block;font-weight:500}
.form-input{padding:8px 12px;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-family:inherit;font-size:0.88rem;transition:border-color 0.2s}
.form-input:focus{outline:none;border-color:var(--accent-primary)}
.form-select{width:100%;padding:8px 12px;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-family:inherit;font-size:0.88rem;cursor:pointer}
.form-select:focus{outline:none;border-color:var(--accent-primary)}

/* Attribute list */
.attr-item{display:flex;align-items:center;gap:8px;padding:8px 10px;background:var(--bg-tertiary);border-radius:var(--radius-md);margin-bottom:6px;border:1px solid var(--border-color)}
.attr-color-dot{width:14px;height:14px;border-radius:50%;flex-shrink:0}
.add-attr-row{display:flex;gap:8px;align-items:center;margin-top:10px;flex-wrap:wrap}

/* Employee list */
.emp-item{padding:10px;background:var(--bg-tertiary);border-radius:var(--radius-md);margin-bottom:8px;border:1px solid var(--border-color)}
.emp-item-header{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.emp-name-display{flex:1;font-weight:500;font-size:0.88rem}
.attr-tag{display:inline-flex;align-items:center;gap:3px;padding:2px 8px;border-radius:20px;font-size:0.68rem;font-weight:600;margin:2px;cursor:pointer;transition:opacity 0.15s}
.attr-tag.active{opacity:1}
.attr-tag.inactive{opacity:0.3}

.add-emp-row{display:flex;gap:8px;align-items:center;margin-top:12px;flex-wrap:wrap;padding-top:12px;border-top:1px solid var(--border-color)}
.add-emp-attrs{display:flex;flex-wrap:wrap;gap:4px}

/* Template Form */
.tpl-req-section{background:var(--bg-secondary);padding:8px;border-radius:var(--radius-md);border:1px solid var(--border-color);flex:1;min-width:200px}
.tpl-req-row{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
.tpl-req-row .req-lbl{font-size:0.75rem;text-align:left}
.tpl-req-row .form-input{width:60px;padding:4px;text-align:center}


/* Toast */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(100px);background:var(--bg-tertiary);border:1px solid var(--border-accent);border-radius:var(--radius-md);padding:10px 20px;font-size:0.85rem;z-index:500;transition:transform 0.3s ease,opacity 0.3s ease;opacity:0;pointer-events:none;white-space:nowrap}
.toast.show{transform:translateX(-50%) translateY(0);opacity:1}
.toast.success{border-color:var(--accent-success);color:#6ee7b7}
.toast.error{border-color:var(--accent-danger);color:#fca5a5}
.toast.warning{border-color:var(--accent-warning);color:#fcd34d}

/* Warnings */
.warn-item{padding:8px 12px;background:rgba(245,158,11,0.1);border:1px solid rgba(245,158,11,0.3);border-radius:var(--radius-md);font-size:0.82rem;color:#fcd34d;margin-bottom:6px}

/* Name column mini display */
.name-col-top .emp-name-txt{font-weight:600;font-size:0.82rem;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.name-col-top .emp-roles-txt{display:flex;flex-wrap:wrap;gap:2px;margin-top:2px}
.mini-attr{font-size:0.58rem;padding:1px 5px;border-radius:10px;font-weight:600}

/* Empty state */
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:300px;gap:12px;color:var(--text-muted)}
.empty-state .icon{font-size:3rem}

/* Scrollbar */
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:var(--bg-primary)}
::-webkit-scrollbar-thumb{background:var(--border-accent);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:#4d5580}

/* Req sticky stat col */
.stat-hdr{position:sticky;right:0;z-index:25;background:var(--bg-tertiary);padding:2px 6px;font-size:0.7rem;color:var(--text-muted);white-space:nowrap;text-align:center;vertical-align:middle}

/* ===== LOGO LOADER ===== */
.logo-loader{
  position:fixed;inset:0;background:#0f1117;
  z-index:9999;display:flex;align-items:center;justify-content:center;
  cursor:pointer;opacity:1;transition:opacity 0.5s ease
}
.logo-loader.fade-out{opacity:0;pointer-events:none}
.logo-loader-content{display:flex;flex-direction:column;align-items:center;gap:22px;padding:20px;text-align:center}
.loader-logo-svg{width:200px;height:200px;filter:drop-shadow(0 0 40px rgba(139,92,246,0.25))}
.loader-logo-svg path{opacity:0;fill:#f1f5f9}
.loader-logo-svg .ll-body{animation:llFadeIn 1.0s ease forwards 0.1s}
.loader-logo-svg .ll-ear-l{animation:llFadeIn 0.5s ease forwards 0.9s}
.loader-logo-svg .ll-ear-r{animation:llFadeIn 0.5s ease forwards 1.0s}
.loader-logo-svg .ll-eye-skt-l{animation:llFadeIn 0.4s ease forwards 1.3s}
.loader-logo-svg .ll-eye-skt-r{animation:llFadeIn 0.4s ease forwards 1.4s}
.loader-logo-svg .ll-face{animation:llFadeIn 0.5s ease forwards 1.6s}
.loader-logo-svg .ll-pupil-l{animation:llFadeIn 0.3s ease forwards 2.0s;fill:#1a1d27}
.loader-logo-svg .ll-pupil-r{animation:llFadeIn 0.3s ease forwards 2.1s;fill:#1a1d27}
.loader-logo-svg .ll-nose{animation:llFadeIn 0.4s ease forwards 2.3s}
.loader-logo-svg .ll-check{
  fill:#8b5cf6;
  animation:llCheckPop 0.7s cubic-bezier(0.34,1.56,0.64,1) forwards 2.6s
}
@keyframes llFadeIn{to{opacity:1}}
@keyframes llCheckPop{
  0%{opacity:0;transform:scale(0.5);transform-origin:50% 60%}
  60%{opacity:1;transform:scale(1.1);transform-origin:50% 60%}
  100%{opacity:1;transform:scale(1);transform-origin:50% 60%}
}
.loader-title{
  font-family:'Noto Sans JP',sans-serif;font-size:38px;font-weight:700;
  background:linear-gradient(135deg,#6366f1,#8b5cf6);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  letter-spacing:0.08em;opacity:0;
  animation:llFadeIn 0.6s ease forwards 3.2s
}
.loader-tagline{
  font-size:11px;color:#64748b;letter-spacing:0.4em;
  font-family:'Noto Sans JP',sans-serif;opacity:0;
  animation:llFadeIn 0.6s ease forwards 3.5s
}
.loader-hint{
  position:absolute;bottom:24px;left:50%;transform:translateX(-50%);
  font-size:10px;color:#475569;letter-spacing:0.2em;
  opacity:0;animation:llFadeIn 0.6s ease forwards 3.8s
}

/* ===== AI ASSISTANT PANEL ===== */
.ai-settings-section{background:var(--bg-tertiary);padding:12px;border-radius:var(--radius-md);border:1px solid var(--border-color)}
.ai-settings-box{margin-top:8px}

body.ai-open .main-content{padding-right:0}
.ai-panel{
  position:fixed;top:0;right:0;height:100vh;width:380px;
  background:var(--bg-secondary);border-left:1px solid var(--border-color);
  box-shadow:var(--shadow-lg);z-index:150;display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform 0.25s ease
}
.ai-panel.open{transform:translateX(0)}
.ai-panel-header{
  padding:12px 14px;border-bottom:1px solid var(--border-color);
  display:flex;align-items:center;justify-content:space-between;
  background:var(--bg-tertiary);flex-shrink:0
}
.ai-panel-title{font-weight:700;font-size:0.95rem;background:linear-gradient(135deg,var(--accent-primary),var(--accent-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

.ai-status-bar{padding:6px 14px;font-size:0.72rem;color:var(--text-muted);background:var(--bg-primary);border-bottom:1px solid var(--border-color);flex-shrink:0}
.ai-status-bar.ok{color:#6ee7b7}
.ai-status-bar.err{color:#fca5a5}

.ai-messages{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px}
.ai-msg{padding:10px 12px;border-radius:var(--radius-md);font-size:0.85rem;line-height:1.5;max-width:92%;word-wrap:break-word;white-space:pre-wrap}
.ai-msg.user{align-self:flex-end;background:linear-gradient(135deg,rgba(99,102,241,0.25),rgba(139,92,246,0.25));border:1px solid rgba(139,92,246,0.4);color:var(--text-primary)}
.ai-msg.assistant{align-self:flex-start;background:var(--bg-tertiary);border:1px solid var(--border-color);color:var(--text-primary)}
.ai-msg.assistant.system{background:rgba(245,158,11,0.1);border-color:rgba(245,158,11,0.3);color:#fcd34d;font-size:0.78rem}
.ai-msg.assistant.error{background:rgba(239,68,68,0.1);border-color:rgba(239,68,68,0.3);color:#fca5a5}
.ai-msg .msg-meta{font-size:0.68rem;color:var(--text-muted);margin-top:4px}
.ai-msg-actions{margin-top:8px;display:flex;gap:6px;flex-wrap:wrap}

.ai-typing{align-self:flex-start;display:flex;gap:4px;padding:10px 14px;background:var(--bg-tertiary);border:1px solid var(--border-color);border-radius:var(--radius-md)}
.ai-typing span{width:6px;height:6px;border-radius:50%;background:var(--text-muted);animation:typing 1.4s infinite ease-in-out}
.ai-typing span:nth-child(2){animation-delay:0.2s}
.ai-typing span:nth-child(3){animation-delay:0.4s}
@keyframes typing{0%,60%,100%{opacity:0.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}

.ai-input-area{padding:10px 12px;border-top:1px solid var(--border-color);background:var(--bg-tertiary);flex-shrink:0}
.ai-input{width:100%;background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-family:inherit;font-size:0.85rem;padding:8px 10px;resize:vertical;max-height:160px;transition:border-color 0.2s}
.ai-input:focus{outline:none;border-color:var(--accent-primary)}
.ai-input:disabled{opacity:0.5;cursor:not-allowed}
.ai-input-actions{display:flex;justify-content:space-between;align-items:center;margin-top:6px}

/* AI Diff list */
.diff-row{display:grid;grid-template-columns:1fr 110px 30px 110px;gap:8px;align-items:center;padding:8px 12px;border-bottom:1px solid var(--border-color);font-size:0.82rem}
.diff-row:last-child{border-bottom:none}
.diff-row.invalid{background:rgba(239,68,68,0.08)}
.diff-target{font-weight:500}
.diff-target .diff-date{font-size:0.72rem;color:var(--text-muted);margin-left:4px}
.diff-from,.diff-to{padding:3px 8px;border-radius:var(--radius-sm);font-weight:700;text-align:center;font-size:0.75rem}
.diff-from.empty,.diff-to.empty{background:var(--bg-tertiary);color:var(--text-muted)}
.diff-arrow{text-align:center;color:var(--text-muted)}
.diff-from.s-日勤,.diff-to.s-日勤{background:rgba(59,130,246,0.2);color:#93c5fd}
.diff-from.s-夜勤,.diff-to.s-夜勤{background:rgba(139,92,246,0.2);color:#c4b5fd}
.diff-from.s-明け,.diff-to.s-明け{background:rgba(245,158,11,0.2);color:#fcd34d}
.diff-from.s-休み,.diff-to.s-休み{background:rgba(107,114,128,0.2);color:#9ca3af}
.diff-from.s-その他,.diff-to.s-その他{background:rgba(236,72,153,0.2);color:#f9a8d4}
.diff-reason{grid-column:1/-1;font-size:0.72rem;color:var(--text-muted);margin-top:4px;padding-left:4px}
.diff-warn-icon{color:var(--accent-warning);font-size:0.78rem;margin-left:4px}

@media (max-width: 768px){
  .ai-panel{width:100%}
}