:root{--primary-color:#2563eb;--primary-hover:#1d4ed8;--secondary-color:#10b981;--secondary-hover:#059669;--warning-color:#f59e0b;--warning-bg:#fef3c7;--danger-color:#ef4444;--danger-hover:#dc2626;--background-color:#f3f4f6;--surface-color:#fff;--text-primary:#111827;--text-secondary:#4b5563;--border-color:#e5e7eb;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a;--shadow-lg:0 10px 15px -3px #0000001a, 0 4px 6px -4px #0000001a;--radius-md:.5rem;--radius-lg:1rem;--font-family:"Inter", "Helvetica Neue", "Arial", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Meiryo", sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--background-color);color:var(--text-primary);line-height:1.5}.app-container{background-color:var(--background-color);flex-direction:column;max-width:600px;min-height:100vh;margin:0 auto;display:flex}.app-header{background-color:var(--surface-color);text-align:center;box-shadow:var(--shadow-sm);z-index:10;justify-content:space-between;align-items:center;padding:1rem;display:flex;position:sticky;top:0}.app-title{color:var(--primary-color);font-size:1.1rem;font-weight:700}.nav-buttons{gap:.5rem;display:flex}.nav-btn{border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;background:0 0;padding:.25rem .5rem;font-size:.8rem}.nav-btn.active{background:var(--primary-color);color:#fff;border-color:var(--primary-color)}.main-content{flex-direction:column;flex:1;gap:1.25rem;padding:1rem;display:flex}.card{background-color:var(--surface-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:1.25rem}.clock-area{text-align:center;margin-bottom:1rem}.current-date{color:var(--text-secondary);font-size:1rem}.current-time{letter-spacing:-1px;margin-top:.25rem;font-size:3rem;font-weight:800;line-height:1}.action-area{grid-template-columns:1fr 1fr;gap:.75rem;display:grid}.btn-punch{border-radius:var(--radius-lg);color:#fff;cursor:pointer;box-shadow:var(--shadow-md);border:none;padding:1.5rem 1rem;font-size:1.25rem;font-weight:700}.btn-check-in{background:linear-gradient(135deg, var(--primary-color), var(--primary-hover))}.btn-check-out{background:linear-gradient(135deg, var(--secondary-color), var(--secondary-hover))}.btn-disabled{cursor:not-allowed;box-shadow:none;background:#cbd5e1!important}.alert-box{background-color:var(--warning-bg);border:1px solid var(--warning-color);border-radius:var(--radius-md);flex-direction:column;gap:.5rem;margin-top:1rem;padding:1rem;display:flex}.alert-title{color:var(--warning-color);align-items:center;gap:.25rem;font-size:.95rem;font-weight:700;display:flex}.alert-text{color:var(--text-secondary);font-size:.85rem}.form-group{flex-direction:column;gap:.25rem;margin-bottom:.75rem;display:flex}.form-label{color:var(--text-secondary);font-size:.85rem;font-weight:600}.form-input,.form-select{border:1px solid var(--border-color);border-radius:var(--radius-md);width:100%;padding:.5rem;font-family:inherit;font-size:1rem}.btn-outline{border:1px solid var(--primary-color);color:var(--primary-color);border-radius:var(--radius-md);cursor:pointer;text-align:center;background:#fff;width:100%;margin-top:1rem;padding:.5rem;font-weight:600}.modal-overlay{z-index:50;background:#00000080;align-items:flex-end;display:flex;position:fixed;inset:0}.modal-content{background:var(--surface-color);border-top-left-radius:var(--radius-lg);border-top-right-radius:var(--radius-lg);width:100%;max-height:90vh;padding:1.5rem;animation:.3s ease-out slideUp;overflow-y:auto}@keyframes slideUp{0%{transform:translateY(100%)}to{transform:translateY(0)}}.modal-title{border-bottom:1px solid var(--border-color);margin-bottom:1rem;padding-bottom:.5rem;font-size:1.1rem;font-weight:700}.btn-save{background:var(--primary-color);color:#fff;border-radius:var(--radius-md);border:none;width:100%;margin-top:1rem;padding:.75rem;font-size:1rem;font-weight:700}.btn-close{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;width:100%;padding:.5rem;text-decoration:underline}.history-list{flex-direction:column;gap:.5rem;display:flex}.history-item{border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;background:#fff;justify-content:space-between;align-items:center;padding:.75rem;display:flex}.history-date{font-size:.9rem;font-weight:600}.history-times{color:var(--text-secondary);font-size:.85rem}.history-badge{background:var(--border-color);border-radius:99px;padding:.1rem .4rem;font-size:.7rem}.history-badge.leave{background:var(--secondary-color);color:#fff}.history-badge.alert{background:var(--warning-color);color:#fff}.admin-table-container{margin-top:1rem;overflow-x:auto}.admin-table{border-collapse:collapse;text-align:left;width:100%;font-size:.9rem}.admin-table th,.admin-table td{border-bottom:1px solid var(--border-color);padding:.75rem}.admin-table th{background-color:var(--background-color);color:var(--text-secondary);font-weight:600}.status-badge{border-radius:var(--radius-full);padding:.25rem .5rem;font-size:.75rem;font-weight:700;display:inline-block}.status-draft{background-color:var(--border-color);color:var(--text-secondary)}.status-submitted{background-color:var(--warning-bg);color:var(--warning-color)}.status-approved{color:var(--secondary-color);background-color:#d1fae5}.btn-small{border-radius:var(--radius-md);border:1px solid var(--primary-color);color:var(--primary-color);cursor:pointer;background:0 0;padding:.25rem .5rem;font-size:.8rem;font-weight:600}.btn-small.ok{background:var(--primary-color);color:#fff}@media (width>=768px){.app-container{max-width:1000px}}.auth-screen{background:var(--background-color);justify-content:center;align-items:center;min-height:100vh;padding:1rem;display:flex}.auth-card{background:var(--surface-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);text-align:center;width:100%;max-width:360px;padding:2rem 1.5rem}.auth-logo{margin-bottom:.25rem;font-size:2.5rem}.auth-title{color:var(--primary-color);font-size:1.4rem;font-weight:800}.auth-subtitle{color:var(--text-secondary);margin-bottom:1.5rem;font-size:.8rem}.auth-google-btn{border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;width:100%;box-shadow:var(--shadow-sm);background:#fff;justify-content:center;align-items:center;gap:.5rem;padding:.75rem;font-family:inherit;font-size:.95rem;font-weight:600;display:flex}.auth-google-btn:hover{background:#f9fafb}.auth-divider{align-items:center;gap:.75rem;margin:1.25rem 0;display:flex}.auth-divider span{background:var(--border-color);flex:1;height:1px}.auth-toggle{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;font-family:inherit;font-size:.8rem}.auth-email-form{flex-direction:column;gap:.5rem;display:flex}.auth-error{color:var(--danger-color);font-size:.8rem}.auth-note{color:var(--text-secondary);margin-top:1rem;font-size:.75rem}.auth-loading{color:var(--text-secondary);font-size:.95rem}.auth-denied-box{background:var(--background-color);border:1px solid var(--border-color);border-radius:var(--radius-md);margin:1rem 0;padding:1.25rem}.auth-denied-title{margin-bottom:.5rem;font-size:1rem;font-weight:700}.auth-denied-text{color:var(--text-secondary);font-size:.85rem;line-height:1.8}.auth-logout{border:1px solid var(--border-color);border-radius:var(--radius-md);cursor:pointer;background:0 0;padding:2px 7px;font-size:.9rem;line-height:1}.auth-logout:hover{background:var(--background-color)}